CN109024622B - Use method of slope reinforcement rod piece - Google Patents
Use method of slope reinforcement rod piece Download PDFInfo
- Publication number
- CN109024622B CN109024622B CN201810755178.5A CN201810755178A CN109024622B CN 109024622 B CN109024622 B CN 109024622B CN 201810755178 A CN201810755178 A CN 201810755178A CN 109024622 B CN109024622 B CN 109024622B
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- CN
- China
- Prior art keywords
- rod body
- rod
- fiber hose
- nut
- fiber
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- Expired - Fee Related
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a use method of a slope reinforcement rod piece, which comprises a rod piece body, a nut and a base plate, wherein the rod piece body is a hollow rod body, the rod piece body consists of a nut installation section, a front end rod body and a rear end rod body, the nut and the base plate can be installed on the nut installation section in a matched mode, a plurality of connecting holes are formed in the rear end rod body, a hollow fiber hose is connected to the connecting holes, and seepage holes are formed in the fiber hose. According to the invention, the rod body is connected with the fiber hose with a plurality of seepage holes, a structure similar to a tree root is formed between the fiber hose and the rod body, like a root system extending out of the peripheral wall of the rod body, the action area of the rod body and a contact soil body is enlarged, and the anchoring force is greatly increased; utilize high pressure to make the fiber hose extend during slip casting, the thick liquid can ooze from the infiltration hole after the fiber hose extends, makes the scope that the thick liquid extends in the soil body bigger, has increased the stock and has contacted the active area of the soil body, the mechanical strength and the wholeness of the soil body of reinforcing.
Description
Technical Field
The invention relates to the technical field of slope reinforcement equipment, in particular to a using method of a slope reinforcement rod piece.
Background
The anchor rod is a rod piece, is the most basic component of roadway support in the contemporary coal mine, and reinforces the surrounding rocks of the roadway together to support the surrounding rocks per se. The conventional anchor rod is not only used for mines, but also used in engineering technology for reinforcing main bodies of slopes, tunnels and dams. The anchor rod is used as a tension member penetrating into the stratum, one end of the anchor rod is connected with an engineering structure, the other end of the anchor rod penetrates into the stratum, the whole anchor rod is divided into a free section and an anchoring section, the free section is an area for transmitting the tension at the head of the anchor rod to an anchoring body, and the anchor rod is used for applying prestress to the anchor rod.
When the anchor rod is used for reinforcing a soil slope, the anchoring force is provided mainly by the anchoring section of the anchor rod and the cohesive force and the friction force of the anchoring section and the soil body in contact with the anchoring section, the anchoring force depends on the size of the area of the anchoring section interacting with the soil body in contact and the mechanical property of the anchoring section contacting the soil body, and the area of the traditional anchor rod anchoring section interacting with the soil body in contact depends on the anchoring length, so the size of the traditional anchor rod is very limited, and the anchoring effect is limited.
Disclosure of Invention
The invention aims to provide a method for using a slope reinforcement rod piece to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for using a slope reinforcement rod piece comprises a rod piece body, a nut and a base plate, wherein the rod piece body is a hollow rod body, the rod piece body consists of a nut installation section, a front end rod body and a rear end rod body, the nut and the base plate can be installed on the nut installation section in a matched mode, a plurality of connecting holes are formed in the rear end rod body, a hollow fiber hose is connected to the connecting holes, seepage holes are formed in the fiber hose, and the tail end of the rear end rod body is connected with a plurality of fiber hoses; the front end rod body is provided with a plurality of slurry outlet holes capable of discharging slurry; the connecting holes are uniformly arranged, one end of the fiber hose is sealed, and the other end of the fiber hose is connected with a sleeve which is sleeved on the rear-end rod body and fixed on the rear-end rod body in a sticking mode, and the fiber hose is ensured to correspond to the connecting holes; the sleeve can be connected with a plurality of fiber hoses simultaneously;
further comprising the steps of:
the first step is as follows: side slope punching is carried out to form a hole; 1/2, stirring the mortar to form forming slurry, and ensuring that the maximum aggregate particle size in the forming slurry is smaller than the aperture of the connecting hole;
the second step is that: inserting the rod body into the hole in the first step, ensuring that the rear end rod body is inside and the front end rod body is outside, and attaching the fiber hose to the outer side of the rod body in this state;
the third step: sequentially mounting a base plate and a nut on the nut mounting section;
the fourth step: and injecting the forming slurry in the first step into the interior of the rod body at a high pressure from an external port of the rod body, and stopping grouting when the grouting amount and the grouting pressure reach the design requirements.
As a further scheme of the invention: the maximum particle size of the aggregate in the first forming slurry is less than 1/3 of the aperture of the connecting hole.
Compared with the prior art, the rod piece body is connected with the fiber hose with the plurality of seepage holes, a structure similar to a tree root is formed between the fiber hose and the rod piece body, and like a root system extending out of the peripheral wall of the rod piece body, the action area of the rod piece body and a contact soil body is enlarged, and the anchoring force is greatly increased; utilize high pressure to make the fiber hose extend when the slip casting, the thick liquid can be followed the infiltration hole and oozed out after the fiber hose extends, makes the scope that the thick liquid extends in the soil body bigger, has increased the area of action of stock with the contact soil body, the reinforcing mechanical strength and the wholeness of the soil body, makes the concrete better reinforcing effect of member body.
Drawings
Fig. 1 is a schematic structural view of a slope reinforcement bar member.
Fig. 2 is a schematic view of the structure in the direction a in fig. 1.
Fig. 3 is a schematic view of the structure in the direction B in fig. 1.
Fig. 4 is a schematic structural view of a rear end rod body in the slope reinforcement rod piece.
FIG. 5 is a schematic view of the structure C-C in FIG. 4.
Fig. 6 is a schematic structural diagram of D-D in fig. 4.
In the figure: 1-rod body, 11-nut mounting section, 12-front end rod body, 13-rear end rod body, 14-connecting hole, 2-nut, 3-backing plate, 4-fiber hose and 41-seepage hole.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-6, a method for using a slope-reinforcing rod includes a rod body, a nut, and a backing plate, where the rod body is a hollow rod body, the rod body is composed of a nut installation section, a front end rod body and a rear end rod body, the nut and the backing plate can be installed on the nut installation section in a matching manner, slurry can be poured through the hollow rod body, the rear end rod body is provided with a plurality of connection holes, the connection holes are connected with a fiber hose which is hollow inside, the fiber hose is provided with seepage holes, slurry can enter the fiber hose through the connection holes after being poured into the rod body, the fiber hose is propped up to extend into a soil body, and a part of the slurry entering the fiber hose can seep out from the seepage holes to be combined with the soil body.
The end-to-end connection of the rear end body of rod has a plurality of fiber hoses, and the end sets up fiber hose and can make whole body of rod further stretch into inside the soil body after pouring into the thick liquid, increases the dynamics of anchor.
Set up a plurality of grout outlet that can go out the thick liquid on the front end body of rod, the setting in grout outlet can make thick liquids enter into the space between member body and the pore-forming, guarantees the effect of whole member body when using.
The fiber hose is installed on the connecting hole in a sticking mode.
The connecting holes are uniformly arranged, the other end of one end of the fiber hose is sealed and is connected with a sleeve, the sleeve is sleeved on the rear-end rod body and is fixed on the rear-end rod body in a sticking mode, and the fiber hose is ensured to be corresponding to the connecting holes.
The sleeve can be connected to a plurality of fiber hoses simultaneously.
The method comprises the following steps:
the first step is as follows: side slope punching is carried out to form a hole; 1/2, stirring the mortar to form forming slurry, and ensuring that the maximum aggregate particle size in the forming slurry is smaller than the aperture of the connecting hole; the selection of the aggregate particle size ensures that the aggregate can smoothly enter the fiber hose after being injected into the rod body;
the second step is that: inserting the rod body into the hole in the first step, ensuring that the rear end rod body is inside and the front end rod body is outside, and attaching the fiber hose to the outer side of the rod body in this state; before the slurry is injected, the fiber hose is relatively soft and can be attached to the outer side edge of the rod piece body, so that the rod piece body can be smoothly inserted into the inner part of the formed hole in the earlier stage;
the third step: sequentially mounting a base plate and a nut on the nut mounting section;
the fourth step: the forming slurry in the first step is injected into the interior of the rod body from the external port of the rod body at high pressure, the slurry injection is stopped when the slurry injection amount and the slurry injection pressure reach the design requirements, and the high-pressure slurry injection is carried out by combining the design requirements of different sites when the slurry is injected at actual high pressure, so that the design requirements can be met.
After the whole high-pressure grouting is finished, tensioning and locking are carried out, pre-tensioning is carried out after the strength of a consolidation body reaches 75% of the preset strength and exceeds 15MPa, pre-tensioning is carried out before formal tensioning, the locking load is higher than the tensioning and locking value in order to reach the tensioning and locking value required by the design after locking, and according to the regulation on the stress loss, 1.1-1.2 times of the tensioning and locking value can be generally adopted.
The maximum particle size of the aggregate in the first forming slurry is less than 1/3 of the aperture of the connecting hole.
According to the invention, the rod body is connected with the fiber hose with a plurality of seepage holes, a structure similar to a tree root is formed between the fiber hose and the rod body, like a root system extending out of the peripheral wall of the rod body, the action area of the rod body and a contact soil body is enlarged, and the anchoring force is greatly increased; utilize high pressure to make the fiber hose extend when the slip casting, the thick liquid can be followed the infiltration hole and oozed out after the fiber hose extends, makes the scope that the thick liquid extends in the soil body bigger, has increased the area of action of stock with the contact soil body, has strengthened the mechanical strength and the wholeness of the soil body, makes the member body have better reinforcement effect.
The rod body is connected with a fiber hose which is made of soft high-strength fiber materials, and fine seepage holes are formed in the wall of the fiber hose.
The rod body adopts high-pressure grouting, and under the action of high-pressure slurry, the fiber hose extends into the soil body like a tree root, and permeates slurry through pores of the pipe wall to solidify the soil body around the pipe wall.
According to the invention, the fiber hose is connected with the rod body, so that the connecting force of the fiber grouting pipe and the rod body is ensured; high-pressure grouting is carried out on the fiber hose through the hollow rod piece body, the fiber grouting pipe extends into a soil body, slurry seeps out through the seepage holes in the peripheral wall of the fiber hose pipe and is in contact solidification with the surrounding soil body, the action area of the anchoring section and the contact soil body is increased, and the anchoring force of the anchor rod is greatly increased.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (2)
1. The using method of the slope reinforcing rod piece is characterized in that the slope reinforcing rod piece comprises a rod piece body, a nut and a base plate, the rod piece body is a hollow rod body, the rod piece body consists of a nut installation section, a front end rod body and a rear end rod body, the nut and the base plate can be installed on the nut installation section in a matched mode, a plurality of connecting holes are formed in the rear end rod body, a hollow fiber hose is connected to the connecting holes, seepage holes are formed in the fiber hose, and the tail end of the rear end rod body is connected with a plurality of fiber hoses; the front end rod body is provided with a plurality of slurry outlet holes capable of discharging slurry; the connecting holes are uniformly arranged, one end of the fiber hose is sealed, and the other end of the fiber hose is connected with a sleeve which is sleeved on the rear-end rod body and fixed on the rear-end rod body in a sticking mode, and the fiber hose is ensured to correspond to the connecting holes; the sleeve can be connected with a plurality of fiber hoses simultaneously;
further comprising the steps of:
the first step is as follows: side slope punching is carried out to form a hole; 1/2, stirring the mortar to form forming slurry, and ensuring that the maximum aggregate particle size in the forming slurry is smaller than the aperture of the connecting hole;
the second step is that: inserting the rod body into the hole in the first step, ensuring that the rear end rod body is inside and the front end rod body is outside, and attaching the fiber hose to the outer side of the rod body in this state;
the third step: sequentially mounting a base plate and a nut on the nut mounting section;
the fourth step: and injecting the forming slurry in the first step into the interior of the rod body at a high pressure from an external port of the rod body, and stopping grouting when the grouting amount and the grouting pressure reach the design requirements.
2. The method for using a slope reinforcement bar according to claim 1, wherein the maximum particle size of the aggregate in the first-step forming slurry is smaller than 1/3 of the aperture of the connection hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755178.5A CN109024622B (en) | 2018-07-11 | 2018-07-11 | Use method of slope reinforcement rod piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755178.5A CN109024622B (en) | 2018-07-11 | 2018-07-11 | Use method of slope reinforcement rod piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109024622A CN109024622A (en) | 2018-12-18 |
| CN109024622B true CN109024622B (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810755178.5A Expired - Fee Related CN109024622B (en) | 2018-07-11 | 2018-07-11 | Use method of slope reinforcement rod piece |
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| Country | Link |
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| CN (1) | CN109024622B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691415B (en) * | 2019-03-14 | 2024-04-19 | 湖北工业大学 | Multi-strand glass fiber prestressed anchor rod and construction method thereof |
| CN110778361A (en) * | 2019-10-28 | 2020-02-11 | 福建永强岩土股份有限公司 | Grouting pipe with bamboo branches and underground cavity grouting construction method |
| CN114922176B (en) * | 2022-06-15 | 2024-05-28 | 江苏交水建智能装备研究院有限公司 | Root system spiral anchor enlarged head reinforcement rod piece and use method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202595739U (en) * | 2012-05-17 | 2012-12-12 | 王茂华 | Anchor rod suitable for soft soil layer |
| CN103572757A (en) * | 2013-11-07 | 2014-02-12 | 山东交通学院 | Multi-level back-grasp-type hollow anchor rod and construction method thereof |
| CN203701091U (en) * | 2014-02-14 | 2014-07-09 | 湖南科技大学 | Soft foundation inflation anchor rod |
| CN205669208U (en) * | 2016-05-26 | 2016-11-02 | 钱波 | A kind of slope construction liquid nitrogen condensation anchoring support device |
| CN107476309A (en) * | 2017-09-06 | 2017-12-15 | 中国建筑第八工程局有限公司 | Ring post-grouting device for bored concrete pile |
| CN206829129U (en) * | 2017-04-24 | 2018-01-02 | 张清利 | A kind of anchor pole |
-
2018
- 2018-07-11 CN CN201810755178.5A patent/CN109024622B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202595739U (en) * | 2012-05-17 | 2012-12-12 | 王茂华 | Anchor rod suitable for soft soil layer |
| CN103572757A (en) * | 2013-11-07 | 2014-02-12 | 山东交通学院 | Multi-level back-grasp-type hollow anchor rod and construction method thereof |
| CN203701091U (en) * | 2014-02-14 | 2014-07-09 | 湖南科技大学 | Soft foundation inflation anchor rod |
| CN205669208U (en) * | 2016-05-26 | 2016-11-02 | 钱波 | A kind of slope construction liquid nitrogen condensation anchoring support device |
| CN206829129U (en) * | 2017-04-24 | 2018-01-02 | 张清利 | A kind of anchor pole |
| CN107476309A (en) * | 2017-09-06 | 2017-12-15 | 中国建筑第八工程局有限公司 | Ring post-grouting device for bored concrete pile |
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| Publication number | Publication date |
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| CN109024622A (en) | 2018-12-18 |
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