CN113738445A - Water plugging and leaking-off process for floor aquifer - Google Patents
Water plugging and leaking-off process for floor aquifer Download PDFInfo
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- CN113738445A CN113738445A CN202111070415.2A CN202111070415A CN113738445A CN 113738445 A CN113738445 A CN 113738445A CN 202111070415 A CN202111070415 A CN 202111070415A CN 113738445 A CN113738445 A CN 113738445A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000005065 mining Methods 0.000 claims abstract description 15
- 239000011435 rock Substances 0.000 claims abstract description 15
- 230000001174 ascending effect Effects 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 6
- 230000006378 damage Effects 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000002002 slurry Substances 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Remote Sensing (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a process for plugging and then draining water and plugging a water-bearing layer of a bottom plate, which aims at an ore body with an ore layer and a bottom plate both of which are water-bearing layers and a top plate as a water-resisting layer, adopts an advanced grouting process to construct a middle-section transportation roadway, a middle-section air return roadway and a top-cutting circle on two sides to define a block to be mined, adopts an advanced grouting process to construct a measure ascending below a water-bearing failure zone of the bottom plate in the middle of the trend of the ore block, constructs horizontal and downward holes in the measure ascending to form a vertical water-resisting layer, constructs downward holes in the middle-section transportation roadway, the middle-section air return roadway and the top-cutting holes on two sides to enter the vertical water-resisting layer, constructs an upward hole to enter the top plate and injects slurry to form a horizontal water-resisting rock pillar, the vertical water-resisting rock pillar, the horizontal water-resisting rock pillar and the top-resisting plate of the ore layer jointly form a water-bearing block to be mined structure, realizes that the block to be mined is not in connection with the outside, and then performs low-level drainage on the water-bearing failure zone to lower water-draining structure in the measure ascending construction And cutting the two sides of the block to be mined up to the mountain safely below the mining height. The method has the advantages of accurate grouting and water plugging, ensuring safe mining of the ore bed without water influence and the like.
Description
Technical Field
The invention relates to the technical field of grouting water plugging of underground engineering, in particular to a process for plugging a water-bearing stratum of a bottom plate first and then plugging and plugging water and a mining process, which is suitable for the field of underground engineering.
Background
The technical field of grouting and water plugging of current underground engineering still has a lot of prevention and control problems, wherein grouting transformation of a bottom plate aquifer is one of main prevention and control measures, for example, Chinese patent CN 110486022B discloses a bottom plate aquifer grouting process based on directional drilling and a determination method of underground and ground directional drilling, and the bottom plate aquifer is plugged by constructing the directional drilling and grouting by drilling; CN 209163873U, CN 208953189U and CN 206668252U disclose different floor water damage monitoring device level systems; CN 104712286U discloses a process for determining a water-rich drilled hole and a non-water-rich drilled hole according to a single-hole water drainage test of a floor aquifer, grouting the water-rich drilled hole and directly sealing the non-water-rich drilled hole; CN 104929657A discloses a bottom plate aquifer grouting system, which comprises ground grouting equipment, an underground relay station and the like; CN 101608552 a discloses a process or method for drilling a hole with a large inclination angle from the bottom of a roadway in a mine (coal seam), penetrating through a bottom water barrier, entering the bottom water barrier, and grouting and reinforcing the water barrier; CN 103742172 a discloses a method for twice drilling and twice plugging water inrush points.
In summary, the prior art does not have a process and a method for plugging and then draining water directly from the soleplate.
Therefore, the development of a floor aquifer water-plugging and mining process which is low in investment, low in cost, strong in adaptability and environment-friendly is particularly urgent.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a process for blocking a bottom plate aquifer and then draining water, which combines early stage grouting and water blocking with later stage low level drainage, can reduce the water level to be below the elevation of a mined ore bed and realizes safe mining without the influence of underground water.
The task of the invention is completed by the following technical scheme:
the invention relates to a process for plugging and then draining water and plugging a water-bearing layer of a bottom plate, which aims at an ore body with an ore layer and a bottom plate both of which are water-bearing layers and a top plate as a water-resisting layer, adopts an advanced grouting process to construct a middle transportation lane, a middle air return lane and a top-cutting circle on two sides to determine a block to be mined, adopts an advanced grouting process to construct a measure to ascend below a water-bearing failure zone of the bottom plate in the middle of the ore body, constructs horizontal and downward holes in the measure to form a vertical water-resisting layer, constructs downward holes in the middle transportation lane, the middle air return lane and the two sides to enter the vertical water-resisting layer, constructs an upward hole to enter the top plate and injects slurry to form a horizontal water-resisting rock pillar, forms a water-resisting block water-separating structure of the block to be mined together with the top plate of the middle transportation lane, the horizontal water-resisting rock pillar and the water-resisting top plate of the ore layer to form a water-bearing block to be mined, realizes the hydraulic connection between the block to be mined and the outside, effectively separates water-bearing failure zone, and performs low-level drainage on the measure to construct an upward drainage hole to lower level water-mining structure And cutting the blocks to be mined up to the mountain safely through two sides until the mining elevation is lower than the mining elevation.
Compared with the prior art, the invention has the following advantages and effects:
(1) accurate grouting and water plugging are realized, and the safe reliability of grouting and water plugging is improved;
(2) the water is firstly blocked and then drained, so that the safe mining of the ore bed under the influence of no water can be ensured.
Drawings
Fig. 1 is a schematic view of the vertical arrangement of a floor aquifer water-plugging-first-then-water-plugging and mining process according to the invention.
Fig. 2 is a schematic plan layout view of the floor aquifer shown in fig. 1, which is subjected to water plugging first and then water plugging and mining processes.
In the drawings, the reference symbols respectively denote:
1. ore body 2, cutting and going up the mountain 3, taking measures to go up the mountain 4, roadway advanced grouting 5, vertical water-resisting layer 6, horizontal water-resisting rock pillar 7, water drainage hole 8, middle section air return roadway 9, middle section transportation roadway 10, water drainage measure roadway 11, water-resisting top plate a, one-step ore block b, two-step ore block h1. water-conducting damage belt height h2. vertical water-resisting layer thickness h3. horizontal water-resisting rock pillar width
The description is described in further detail below with reference to the accompanying drawings.
Detailed Description
As shown in figure 1-2, the bottom plate aquifer water-blocking and then leaking and water-blocking and mining process of the invention aims at an ore body (1) with an aquifer and a water-blocking roof, a middle transportation roadway (9), a middle return airway (8) and upper mountain borders cut at two sides are constructed in the ore body (1) by adopting an advanced grouting process to define a block to be mined, a measure ascending (3) is constructed by adopting an advanced grouting process below a water-guiding destruction zone of the bottom plate in the middle trend of the ore body, a vertical water-blocking layer (5) is formed by constructing horizontal and downward holes in the measure ascending (3) and grouting the two sides, a vertical hole enters the vertical water-blocking layer (5) in the middle transportation roadway (9), the middle return airway (8) and the upper mountain cuts at two sides, the vertical hole enters a top plate in the construction, the top plate enters the top plate in the construction and grouting to form a horizontal water-blocking rock-blocking pillar (6), and the vertical water-blocking layer water-blocking rock-blocking layer top plate (11) jointly form a water-blocking structure of the block to be mined, and realizing the hydraulic connection between the block to be mined and the outside, effectively isolating water, performing low-level water drainage on the block to be mined and the water guide damage zone to a water drainage hole (7) in the construction of the measure ascending (3), reducing the water level to be below the mining elevation, and cutting the ascending (2) from two sides to safely mine the block to be mined.
The process of the invention may further be:
the two-side cutting-up mountain (2) is used as an adjacent ore block cutting-up mountain (2) except for the ore block;
one side of the measure mountain climbing (3) is connected with an exploitation system as a drainage channel, and the other side of the measure mountain climbing (3) is a single-headed lane;
the height (h1) of the water guide fracture zone, the thickness (h2) of the vertical water-resisting layer and the width (h3) of the horizontal water-resisting rock pillar are determined through rock mechanics and hydrological calculation.
The following further describes embodiments of the present invention with reference to specific examples.
In the embodiment, referring to fig. 1-2, the average thickness of an ore body is 4m, the average inclination angle is 15 degrees, the top plate is a water-resisting layer, the bottom plate and the ore layer are water-containing layers, the water head pressure is about 1Mpa, the middle section height is 40m, namely a middle section air return roadway (8), the middle section transportation roadway (9) has a vertical height difference of 40m, the trend length is 100m, namely a one step ore block and a two step ore block (a and b) with the width of 100m are divided into ore blocks, for safety mining, the middle section air return roadway (8), the middle section transportation roadway (9), the cutting upper part (2), the water drainage roadway measures (10) and the measure upper part (3) adopt an advanced grouting process to perform grouting and water plugging on a roadway excavation region and the periphery to form advanced roadway grouting body (4) and then perform tunneling construction, the roadway and the advanced grouting body (4) are completed, grouting holes are constructed downwards and grouting are formed through the measure upper part (3) and the two sides to form the water-resisting layer (5), and the water-resisting layer is formed through the cutting upper part (2) on the two sides, And (3) constructing a middle section return air roadway (8) and a middle section transportation roadway (9) to perform upward and downward hole grouting to form a horizontal water-proof rock pillar (6), wherein a vertical water-proof layer (5), the horizontal water-proof rock pillar (6) and a mine layer water-proof top plate (11) jointly form a water-proof structure of a block to be mined, so that the block to be mined is in no hydraulic connection with the outside, and effective water plugging (water-proof) is realized.
One measure is respectively constructed in the range of the two-step ore blocks (b) on the two sides of the one-step ore block (a), the upward mountain (3) is cut, the upward mountain (2) is cut, and the two-step ore block (b) on the two sides is stoped by means of the upward mountain (2) cut on the two sides of the one-step ore block (a).
In the embodiment, the height (h1) of the water guide fracture zone is 10m, the thickness (h2) of the vertical water-resisting layer is 12m, and the width (h3) of the horizontal water-resisting rock pillar is 8 m.
The above embodiments are only preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments, and other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent replacements within the protection scope of the present invention.
Claims (4)
1. The process is characterized in that a middle section transportation lane (9), a middle section return airway (8) and a goaf circle cut at two sides are constructed by adopting an advanced grouting process in an ore body (1) aiming at the ore layer and the ore body (1) of which the bottom plate is a water-containing layer and the top plate is a water-proof layer, a measure ascending (3) is constructed by adopting the advanced grouting process below a water guide destruction zone of the bottom plate in the middle of the trend of the ore body (1), horizontal and downward hole grouting is constructed in the measure ascending (3) to form a vertical water-proof layer (5), downward holes are constructed in the middle section transportation lane (9), the middle section return airway (8) and the two sides cut ascending to enter the vertical water-proof layer (5), upward holes are constructed to enter the top plate and grouting is carried out to form a horizontal water-proof rock pillar (6), the vertical water-proof layer (5), the horizontal water-proof rock pillar (6) and the ore layer water-proof top plate (11) jointly form a water-proof structure to be mined block, and realizing the hydraulic connection between the block to be mined and the outside, effectively isolating water, performing low-level water drainage on the block to be mined and the water guide damage zone to a water drainage hole (7) in the construction of the measure ascending (3), reducing the water level to be below the mining elevation, and cutting the ascending (2) from two sides to safely mine the block to be mined.
2. The process as claimed in claim 1, wherein the two-sided cutting up (2) is used as a cutting up (2) of an adjacent block, in addition to the block.
3. A process according to claim 1 or 2, characterized in that the measure goes up the mountain (3) with one side connected to an exploitation system as a drainage channel and the other side is a single-headed lane.
4. The process of claim 1, wherein the height of the hydraulic fracture zone (h1), the thickness of the vertical water barrier layer (h2), and the width of the horizontal water barrier pillar (h3) are determined by rock mechanics and hydrological calculations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111070415.2A CN113738445B (en) | 2021-09-13 | 2021-09-13 | Water plugging and leaking-off process for floor aquifer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111070415.2A CN113738445B (en) | 2021-09-13 | 2021-09-13 | Water plugging and leaking-off process for floor aquifer |
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| Publication Number | Publication Date |
|---|---|
| CN113738445A true CN113738445A (en) | 2021-12-03 |
| CN113738445B CN113738445B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111070415.2A Active CN113738445B (en) | 2021-09-13 | 2021-09-13 | Water plugging and leaking-off process for floor aquifer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2775120C1 (en) * | 2021-12-17 | 2022-06-28 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Method for isolating water inflow in a formation with bottom water |
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|---|---|---|---|---|
| CN101608552A (en) * | 2008-06-18 | 2009-12-23 | 郭国政 | The seat earth aquifer reinforces and protects the method for water barrier in reinforcing process |
| CN103291325A (en) * | 2013-06-25 | 2013-09-11 | 山东科技大学 | Method for preventing and controlling water burst of coal mining base board rock stratum on pressure bearing water body |
| CN105114029A (en) * | 2015-08-19 | 2015-12-02 | 中煤科工集团西安研究院有限公司 | Water plugging method for poor sealing borehole in mine laneway |
| CN105464685A (en) * | 2016-01-20 | 2016-04-06 | 中铁隆工程集团有限公司 | Cave-pile method bored tunnel waterproof curtain and construction method thereof |
| RU2679212C1 (en) * | 2018-04-19 | 2019-02-06 | Евгений Илдарович Нургалиев | “bridge-cement curtain” consolidating isolation system construction method |
| CN111075482A (en) * | 2020-01-02 | 2020-04-28 | 华北科技学院 | Working face collapse column grouting waterproof treatment method |
-
2021
- 2021-09-13 CN CN202111070415.2A patent/CN113738445B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608552A (en) * | 2008-06-18 | 2009-12-23 | 郭国政 | The seat earth aquifer reinforces and protects the method for water barrier in reinforcing process |
| CN103291325A (en) * | 2013-06-25 | 2013-09-11 | 山东科技大学 | Method for preventing and controlling water burst of coal mining base board rock stratum on pressure bearing water body |
| CN105114029A (en) * | 2015-08-19 | 2015-12-02 | 中煤科工集团西安研究院有限公司 | Water plugging method for poor sealing borehole in mine laneway |
| CN105464685A (en) * | 2016-01-20 | 2016-04-06 | 中铁隆工程集团有限公司 | Cave-pile method bored tunnel waterproof curtain and construction method thereof |
| RU2679212C1 (en) * | 2018-04-19 | 2019-02-06 | Евгений Илдарович Нургалиев | “bridge-cement curtain” consolidating isolation system construction method |
| CN111075482A (en) * | 2020-01-02 | 2020-04-28 | 华北科技学院 | Working face collapse column grouting waterproof treatment method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2775120C1 (en) * | 2021-12-17 | 2022-06-28 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Method for isolating water inflow in a formation with bottom water |
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| CN113738445B (en) | 2022-12-09 |
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