CN106777839A - Building damage scene construction method at most unfavorable position of tunnel construction - Google Patents
Building damage scene construction method at most unfavorable position of tunnel construction Download PDFInfo
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Abstract
The invention provides a building damage scene construction method at the most unfavorable position of tunnel construction, which comprises the following steps: s1) establishing a model of the tunnel passing through the building under different angle conditions, calculating the ground surface settlement, and determining the most unfavorable position of the building and the tunnel construction; s2) building a three-dimensional model by using midas/gts to obtain the force value and the settlement value in the building structure at the most unfavorable position; s3) assessing whether the building structure fails; s4), and visualizing the deformation of the most unfavorable locations of the building and the tunnel using 3D MAX software. In the construction process of urban tunnel projects, the method analyzes factors causing building damage and prejudges the building damage condition so as to guide the tunnel to pass through the building at the worst position to prevent and treat the building damage.
Description
Technical field
The invention belongs to subway work safety management technology field, particularly relate to a kind of in constructing tunnel most unfavorable combination
Building destruction scene construction method.
Background technology
As the high speed development of society, urban population are intensive, space is crowded, traffic jam, develops Urban Underground empty
Between be 21 century urban development the only way which must be passed, in the world many scholars 21 century will be referred to as " underground space development
Century ".
Subway, is the lifeline engineering of urban construction, while subway construction is facilitated for the traffic in bed rearrangement city is provided,
Huge hidden danger has been buried to the safety in city.
Most of city tunnel is distributed in densely populated busy section of town, and earth's surface building dense, constructing tunnel is inevitable
Building can be impacted.What its influence caused mainly due to the interphase interaction of tunnel, stratum, building.Due to building
It is not orthogonal to build thing general with tunnel plane geometry position relationship, and tunnel is more with the situation that different angles pass through building,
There is a possibility that earth's surface occurs differential settlement causes building destruction.
The content of the invention
In order to solve problem present in above Construction of City Tunnel, the present invention proposes a kind of in constructing tunnel least favorable
The building destruction scene construction method of position, to instruct tunnel to cause building destruction with most unfavorable combination passing through building
Preventing and treating.
The technical proposal of the invention is realized in this way：
A kind of building destruction scene construction method in constructing tunnel most unfavorable combination, it is comprised the following steps：
S1) set up the model of tunnel passing through building under different angle conditions, calculate ground settlement, determine building with
The most unfavorable combination of constructing tunnel；
S2) set up threedimensional model by with midas/gts, draw in the building structure in most unfavorable combination force value and
Sedimentation value；
Whether S3) evaluation building structure fails；
S4) integral data, is visualized the deformation of building and tunnel most unfavorable combination using 3D MAX softwares.
In above-mentioned technical proposal, step S1) ground settlement is calculated using peck formula.
In above-mentioned technical proposal, step S1) in, building is calculated with the most unfavorable combination of constructing tunnel by following formula：
When α=90, settling amount is maximum, i.e., be most unfavorable combination when building major axis is with tunnel centerline parallel.
In above-mentioned technical proposal, step S2) set up threedimensional model by with midas/gts, it is first definition material attribute, several
What drawing grid is divided and finally draws force value and sedimentation value in building structure, and its step is as follows：
S21 the physics parameter on each stratum) is counted, midas/gts softwares are sequentially input；
S22) progressively simulation tunnel mining process, calculates building deformation data；
S23) output building settlement, inclination, interior force value.
In above-mentioned technical proposal, step S21) in data source in Practical Project field measurement data, based on on-site land survey
On the basis of count the physical and mechanical parameter on each stratum, including formation thickness, Poisson's ratio, density, internal friction angle, cohesive strength,
Elastic modelling quantity, tensile strength, compression strength, these data of the border of model are that later stage modeling is laid a solid foundation；
The length of model is 2 times of tunnel width, and model right boundary is horizontal restraint, and model coboundary is free end,
The exposure level constraint simultaneously of model lower boundary and constraint vertically.
In above-mentioned technical proposal, step S3) comprise the following steps that：
S31) the process that simulation tunnel construction, the soil body are disturbed, building member is subject to additional stress, calculates additional answering
Power and incremental displacement value；
S32) judge member stress and displacement whether beyond limit value：
Do not destroyed if the structure without departing from if；
If the component failure if, component exits work and this member dead weight is added into other components；Judge entirety or office
Whether portion's structure forms geometrically unstable system：
If otherwise structure is not destroyed；If then structure destruction.
In above-mentioned technical proposal, step S4) specifically include：
S41) data model of building member fracture is obtained using the solid images of the building with away structure；
S42) virtual building differential settlement model；
S43) data model of the building member fracture to building carries out fracture treatment；
S44) virtual building destruction animation.
In above-mentioned technical proposal, step S41) specifically include：
S411) introduce one have component be broken data message image, the data message of fracture is mapped to need by
It is broken on the virtual plane for calculating；
S412) catch plane fracture crack image texture information, and with the texture information of the crack image of primary plane
Further matching is carried out to set；
S413 line transect view data) is further processed, i.e., the setting of depth is added in data, become a ginseng
Numberization data model.
In above-mentioned technical proposal, step S43) in, it is that the building destruction data model is carried out using Rogue program
Destruction is processed, and the specific method for carrying out component fracture using Rogue program is：
S431) is introduced into building model in object module, being assigned therein as effect object using Rogue program；
S432 fracture calculating) is carried out to effect object by being broken module, more building fracture models are obtained；
S433) after the fracture for performing first time is calculated, the fracture result of first time as effect object is held again
Row fracturing instructions, the fracture data processing that execution is more refined；
S434) the local failure data message to destruction center part carries out destruction treatment again, obtains more accurate broken
Bad result；
S435 destruction treatment repeatedly) is carried out to damage model, result is destroyed.
In above-mentioned technical proposal, step S44) in：
Fracturing instructions are performed using the physics engine in described Rogue program, complete animation is formed.
In sum, the present invention proposes a kind of building destruction scene structure side in constructing tunnel most unfavorable combination
Method, during city tunnel project construction, the factor to causing building to be destroyed is analyzed, and building destruction situation is entered
Row anticipation, to instruct tunnel to cause the preventing and treating of building destruction with most unfavorable combination passing through building.So that engineering staff can
Take effective measures in time, reduce to harm after the generation of house malicious event, or security incident generation are avoided as far as possible
It is minimum.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
Other accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is that earth's surface inclines the schematic diagram for causing building destruction；
Fig. 2 is curvature defomation on building basis influence schematic diagram；
Fig. 3 is that the flow of building destruction scene construction method of the present invention in constructing tunnel most unfavorable combination is illustrated
Figure；
Fig. 4 is earth's surface cross section subsidence curve schematic diagram；
Fig. 5 is inspection surface and tunnel angular position relation schematic diagram；
Fig. 6 is different angle subsider relation schematic diagrams；
Fig. 7 is the spring simulation analysis model schematic diagram of structure destruction principle；
Fig. 8 is that curved structure curve synoptic diagram is received in typical section；
Fig. 9 is the schematic flow sheet that threedimensional model is set up with midas/gts；
Figure 10 is the schematic flow sheet that deformation is calculated with midas/gts softwares；
Figure 11 causes the schematic flow sheet of building destruction for tunnel.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Technical scheme is discussed in detail below in conjunction with the knowledge such as accompanying drawing and the know-why that the present invention relates to.
, it is necessary to the factor to causing building to be destroyed is analyzed during city tunnel project construction, and to building
Destruction situation carries out anticipation.
Cause the factor of building destruction introducing first, as depicted in figs. 1 and 2, including：
(1) differential settlement factor
The surface subsidence that tunnel excavation causes usually non-uniform Distribution, the non-homogeneous sinking of earth's surface will occur building
Inclination and distortion, makes building center of gravity produce skew, and additional tilting moment is produced under Under Eccentric Loading.Inclination and distortion is excessive
When, the projection of building center of gravity may be transferred to beyond the bottom of foundation and cause the destruction of building.As shown in Figure 1 for earth's surface is inclined
Tiltedly cause the schematic diagram of building destruction, building is subject to uniform subgrade reaction to act on when earth's surface is not deformed；As earth's surface is sent out
Raw inclination and distortion, building loosens near the basis of tunnel side with the contact position of soil layer so that subgrade reaction occurs weight
New distribution；Subsequent building produces inclination, and under Under Eccentric Loading, subgrade reaction is redistributed again.
(2) earth's surface curvature factor
Earth's surface curvature has large effect to building, and earth's surface curvature has two kinds of typical deformed areas：Positive camber deformed area
(earth's surface is relatively convex) and negative curvature inflection area (earth's surface is relatively recessed).Generally, earth's surface stretcher strain and positive camber become
Just as when occur, earth's surface compression and negative curvature inflection occur simultaneously.Under positive and negative curvature effects, make ground and building
There are two kinds of changes in basic contact condition, one kind is building all incision grounds, and another kind is partial building incision ground,
As shown in Figure 2.
Building will redistribute subgrade reaction by under positive and negative Curvature Effect, thus make building included in vertical plane
Plus bending moment and shearing effect.Under negative cruvature effect, the middle body of building will be in vacant state, such as Fig. 2 a institutes
Show.When building length is excessive, under gravity, building will be from bottom break, so that building destruction.
In the presence of positive camber, the two ends of building will be partly hanging, as shown in Figure 2 b.The end of building roof truss or fine strain of millet will be from
Extracted out in wall or post, so as to cause building destruction.
For situation above, as shown in figure 3, the present invention provides a kind of building in constructing tunnel most unfavorable combination breaking
Bad scene construction method, for this vital emergent event of the building destruction due to constructing tunnel most unfavorable combination, opens in advance
Exhibition scene is built, and each side is adopted an effective measure in time, and harm is minimized, and it is comprised the following steps：
S1) set up the model of tunnel passing through building under different angle conditions, calculate ground settlement, determine building with
The most unfavorable combination of constructing tunnel；
S2) set up threedimensional model by with midas/gts, draw in the building structure in most unfavorable combination force value and
Sedimentation value；
Whether S3) evaluation building structure fails；
S4) integral data, is visualized the deformation of building and tunnel most unfavorable combination using 3D MAX softwares.
In above-mentioned technical proposal, step S1) it is specific using peck formula calculating ground settlement.
Peck formula assume that and are evenly distributed along the Stratum Loss in tunnel whole length, the earth's surface that constructing tunnel causes
Subsider cross direction profiles are approximately a normal distribution curve, as shown in figure 4, the formula of Transverse Subsidence of Ground Surface is：
In formula：S (x) is the subsidence value at tunnel central axis x；SmaxFor tunnel centerline earth's surface is maximum heavy
Drop amount.
In above-mentioned technical proposal, step S1) in, building is calculated with the most unfavorable combination of constructing tunnel by following formula：
When α=90, settling amount is maximum, i.e., be most unfavorable combination when building major axis is with tunnel centerline parallel.
The derivation of above-mentioned formula is as follows：
From peck formula, the tunnel maximum settlement value S of circular cross-sectionmaxFormula is：
Smax=0.313VLgD2/iy (2)
Wherein D is the diameter of circular tunnel；iyBe from the corresponding ground point of tunnel center line to the flex point of subsidence curve at
Horizontal range, i and tunnel axis buried depth z0Between there is following simple linear relationship：
iy=Kz0 (3)
Wherein, K is trough width parameter.
The formula of ground Transverse Subsidence：
Often there is an angle α between tunnel axis and the trend of building, as shown in Figure 5.Seen along skin
The subsidence curve for measuring from and tunnel axis orthogonal direction section on the subsider curve that observes be different.In such case
Under, corresponding conversion formula can derive as follows：
It is the angle between the center line in tunnel and the line vertical with observation section to define angle α, and -90≤α≤90 are such as schemed
Shown in 6.If during α=0 (transverse settlement groove for generally considering), subsider curve can be represented with Gaussian curve, then such as preceding
Described, its expression formula is (4).
The expression formula of subsider curve S (y) when then considering to have an angle α.Fig. 6 describes this problem, wherein
Give two sets of coordinate systems y ' and y, and y1=ycos a, S1(y1)=S (y), so
Knowable to from formula (5), when α=90, settling amount is maximum, i.e., building major axis with tunnel centerline parallel when be
Most unfavorable combination.
In order to describe step S2 of the invention in detail) and S3), the destructive process machine of concrete structure is simply introduced below
Reason.
Structure destruction principle can be simulated with spring, and analysis model is as shown in Figure 7.According to conservation of energy principle to the mould
Type carries out nonlinear analysis, and the conclusion for obtaining is：When the power that the intensity of spring is born is more than system gravity in C points, system is not
Can destroy, conversely, system can be destroyed；If, more than 2 times of system gravity, system just can be with resilience for spring yield strength
Do not destroy；If system gravity is between C, D, there is slight vibration in structural system, will not also destroy.When
Impact load when acting in the range of the absorbable load of structural elements, structure be occur elasticity or elastic-plastic deformation without
Destruction, on the contrary structure will occur progressive failure.But for build Structure in Complex Structure, due to original vertical load-bearing
Its reaction is considerably complicated after component failure.
Machinery hinge is exactly in fact being hinged for reality, and such as the pin joint of truss rod unit end, it can only bear
Joint forces and moment of flexure can not be carried.In order to illustrate the difference of machinery hinge and plastic hinge, it is necessary to be added with section turn moment curvature force diagram
With explanation.
What is illustrated first is the definition mode that section flexure destroys situation.As curved structure curve map is received in Fig. 8 sections, work as section
Curvature reaches B points, and now component tension reinforcement reaches yield point.If component continues bearing load, section enters plasticity rank
Section BC, hereafter the curvature in section is continuously increased, but the moment of flexure in section increases less.
When sectional curvature reaches C points, the maximum compression fibre in section has exceeded ultimate bearing capacity and has been crushed, hereafter cut
The blending forming technology in face enter the decline stage (as shown in Figure 8), as section band continuously fails, section anti-bending bearing capacity by
Gradually decline, after D points are reached, section has completely lost bending bearing capacity.If according to accurate calculating, section it is broken
Bad to be defined on C points, once that is, section has a band generation crushing destruction to think that section is destroyed, this kind of method is typically
Have ignored the descending branch CD of section flexural property.
After component failure, no matter even if how load changes load and diminish, structure is also impossible to return to original balance
State.Because plastic hinge is reversible, it is impossible to which enough representative structures destroy this irreversible procedure.Because cutting after bending failure
Face is can not to recover blending forming technology, and the forming process of machinery hinge is after section bends destruction, so machinery hinge
Represent a kind of irreversible procedure.Machinery hinge intrinsic propesties is consistent with the actual destructive process of structure, and corresponding structure is broken
Bad mark may be defined as：If after occurring in that enough machinery hinges form expendable movable agency in structural system,
Structure will occur overturning.
In above-mentioned technical proposal, step S2) threedimensional model is set up by with midas/gts, as shown in figure 9, first defining
Material properties, Geometric figure drawing mesh generation finally draw force value and sedimentation value in building structure, and its step is as follows：
S21 the physics parameter on each stratum) is counted, midas/gts softwares are sequentially input；
S22) progressively simulation tunnel mining process, calculates building deformation data；
S23) output building settlement, inclination, interior force value.
Specifically, S21) in data source in Practical Project field measurement data, based on being counted on the basis of on-site land survey
Go out the physical and mechanical parameter on each stratum, including formation thickness, Poisson's ratio, density, internal friction angle, cohesive strength, elastic modelling quantity, tension
Intensity, compression strength, these data of the border of model are that later stage modeling is laid a solid foundation.The length of model is tunnel width
2 times, model right boundary be horizontal restraint, model coboundary be free end, model lower boundary simultaneously exposure level constraint and
Constraint vertically.
Will more than each data input in midas/gts softwares, with the continuous propulsion of working face, overburden stress weight
New distribution, building is influenceed increasingly severe by tunnel, and deformation values become big therewith.Its flow chart is as shown in Figure 10.
In above-mentioned technical proposal, step S3) according to specification《Code for design of building》And《Engineering structure reliability
Degree design unified standard》Whether it is to be failed according to evaluation building structure, as shown in figure 11, comprises the following steps that：
S31) the process that simulation tunnel construction, the soil body are disturbed, building member is subject to additional stress, calculates additional answering
Power and incremental displacement value；
S32) judge member stress and displacement whether beyond limit value：
Do not destroyed if the structure without departing from if；
If the component failure if, component exits work and this member dead weight is added into other components；Judge entirety or office
Whether portion's structure forms geometrically unstable system：
If otherwise structure is not destroyed；If then structure destruction.
Construction step is defined as once excavating 2m and a two field picture is exported in 3D MAX.In the making of image, with initial
Position is reference point, and the sinking of each earth's surface and building is input into according to the result of previous step.Being coupled instrument to utilization respectively will
3D points Forms Transformation is 3D tracing patterns, and the shape for being formed is modified.The model forms that will be changed carry out material and lamp
The modification of light and true to nature, is finally output as a two field picture by * .JPG forms, and final each group of picture is combined and forms building
The visualization that thing collapses.
In above-mentioned technical proposal, step S4) it is as follows：
By step S2) and calculating Data Integration S3), building and tunnel most unfavorable combination are become using 3D MAX softwares
Shape is visualized, and is specifically included：
S41) data model of building member fracture is obtained using the solid images of the building with away structure；
S42) virtual building differential settlement model；
S43) data model of the building member fracture to building carries out fracture treatment；
S44) virtual building destruction animation.
Wherein, step S41) method flow diagram, specifically include：
S411) introduce one have component be broken data message image, the data message of fracture is mapped to need by
It is broken on the virtual plane for calculating；
S412) catch plane fracture crack image texture information, and with the texture information of the crack image of primary plane
Further matching is carried out to set；
S413 line transect view data) is further processed, i.e., the setting of depth is added in data, become a ginseng
Numberization data model.
Step S411) in, material edit routine is used cooperatively with the modification program of an image coordinate, by building destruction
The coordinate of image is applied to plane, you can matched with plane, allows the destruction crack energy of destruction image especially some details
Enough map out and, and can also accurately be projected in plane with its original size.
Step S412) in, the destruction image based on plane catches the destruction image of plane using linear spline sequence of threads
Destruction information, and carry out further matching setting with the destruction information of the destruction image of primary plane.
High-lighting size according to destruction structure is matched successively, first carries out obvious prominent destruction information
Match somebody with somebody, then destruction structure is refined, will entirely destroy picture breakdown into some fritters.It is worth noting that, closing batten
When line is used to decompose fritter, certain one piece of data for the closing line transect that the data for closing line transect all must be other with least one
Information overlap.This matching process can just obtain a seizure data message for accurately destroying image, and one is accurately broken
The seizure data message of bad image could be for after program good optimized integration is provided.
Step S43) in, it is that destruction treatment is carried out to the building destruction data model using Rogue program, using broken
The specific method that bad program carries out component fracture is：
S431) is introduced into building model in object module, being assigned therein as effect object using Rogue program；
S432 fracture calculating) is carried out to effect object by being broken module, more building fracture models are obtained；
S433) after the fracture for performing first time is calculated, the fracture result of first time as effect object is held again
Row fracturing instructions, the fracture data processing that execution is more refined；
S434) the local failure data message to destruction center part carries out destruction treatment again, obtains more accurate broken
Bad result；
S435 destruction treatment repeatedly) is carried out to damage model, result is destroyed.
The step mainly uses the Rogue program of three-dimensional program, in step S41) in the pseudo-entity that builds
Damage model carries out destruction treatment.Wherein：First, local data's letter of the building is introduced in Rogue program's object module
Breath fragment, as the effect object for participating in destruction calculating.Then, after the destruction for performing first time is calculated, cleavage procedures can be by
Then the destruction result of first time performs command destruction again as effect object.Same destruction step is repeated, by broken
Bad module carries out destroying for times calculating to effect object, obtains more damage models；Using collapsing, model enters to damage model
Capable treatment of collapsing, and treatment of repeatedly collapsing is carried out using identical step, obtain finer result of collapsing.
Step S44) in, fracturing instructions are performed using the physics engine in described Rogue program, form complete moving
Draw, the step is the process for eventually forming animation.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of building destruction scene construction method in constructing tunnel most unfavorable combination, it is characterised in that including following
Step：
S1 the model of tunnel passing through building under different angle conditions) is set up, ground settlement is calculated, building and tunnel is determined
The most unfavorable combination of construction；
S2 threedimensional model) is set up by with midas/gts, force value and sedimentation in the building structure in most unfavorable combination is drawn
Value；
Whether S3) evaluation building structure fails；
S4) integral data, is visualized the deformation of building and tunnel most unfavorable combination using 3D MAX softwares.
2. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 1, it is special
Levy and be：
Step S1) ground settlement is calculated using peck formula.
3. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 1, it is special
Levy and be：
Step S1) in, building is calculated with the most unfavorable combination of constructing tunnel by following formula：
When α=90, settling amount is maximum, i.e., be most unfavorable combination when building major axis is with tunnel centerline parallel.
4. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 1, it is special
Levy and be：
Step S2) threedimensional model is set up by with midas/gts, first definition material attribute, Geometric figure drawing mesh generation are final
Force value and sedimentation value in building structure are drawn, its step is as follows：
S21 the physics parameter on each stratum) is counted, midas/gts softwares are sequentially input；
S22) progressively simulation tunnel mining process, calculates building deformation data；
S23) output building settlement, inclination, interior force value.
5. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 4, it is special
Levy and be：
Step S21) in data source in Practical Project field measurement data, based on counting each stratum on the basis of on-site land survey
Physical and mechanical parameter, it is including formation thickness, Poisson's ratio, density, internal friction angle, cohesive strength, elastic modelling quantity, tensile strength, anti-
Compressive Strength, these data of the border of model are that later stage modeling is laid a solid foundation；
The length of model is 2 times of tunnel width, and model right boundary is horizontal restraint, and model coboundary is free end, model
Lower boundary exposure level constraint simultaneously and constraint vertically.
6. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 1, it is special
Levy and be, step S3) comprise the following steps that：
S31) simulation tunnel construction, the process that is disturbed of the soil body, building member are subject to additional stress, calculate additional stress and
Incremental displacement value；
S32) judge member stress and displacement whether beyond limit value：
Do not destroyed if the structure without departing from if；
If the component failure if, component exits work and this member dead weight is added into other components；Judge overall or local knot
Whether structure forms geometrically unstable system：
If otherwise structure is not destroyed；If then structure destruction.
7. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 1, it is special
Levy and be, step S4) specifically include：
S41) data model of building member fracture is obtained using the solid images of the building with away structure；
S42) virtual building differential settlement model；
S43) data model of the building member fracture to building carries out fracture treatment；
S44) virtual building destruction animation.
8. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 7, it is special
Levy and be, step S41) specifically include：
S411 an image that there is component to be broken data message) is introduced, the data message of fracture is mapped into needs and is broken off
On the virtual plane of calculating；
S412 the texture information of the fracture crack image of plane) is caught, and is carried out with the texture information of the crack image of primary plane
Further matching is set；
S413 line transect view data) is further processed, i.e., the setting of depth is added in data, become a parametrization
Data model.
9. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 7, it is special
Levy and be, step S43) in, it is that destruction treatment is carried out to the building destruction data model using Rogue program, using destruction
The specific method that program carries out component fracture is：
S431) is introduced into building model in object module, being assigned therein as effect object using Rogue program；
S432 fracture calculating) is carried out to effect object by being broken module, more building fracture models are obtained；
S433) after the fracture for performing first time is calculated, the fracture result of first time as effect object is performed disconnected again
Split instruction, the fracture data processing that execution is more refined；
S434) the local failure data message to destruction center part carries out destruction treatment again, obtains more accurate destruction knot
Really；
S435 destruction treatment repeatedly) is carried out to damage model, result is destroyed.
10. the building destruction scene construction method in constructing tunnel most unfavorable combination according to claim 7, it is special
Levy and be, step S44) in：
Fracturing instructions are performed using the physics engine in described Rogue program, complete animation is formed.
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