CN106555607A - A kind of old goaf grouting filling control earth's surface residual settlement method - Google Patents

A kind of old goaf grouting filling control earth's surface residual settlement method Download PDF

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Publication number
CN106555607A
CN106555607A CN201611093416.8A CN201611093416A CN106555607A CN 106555607 A CN106555607 A CN 106555607A CN 201611093416 A CN201611093416 A CN 201611093416A CN 106555607 A CN106555607 A CN 106555607A
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China
Prior art keywords
goaf
drilling
grouting filling
old
grouting
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CN201611093416.8A
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CN106555607B (en
Inventor
倪建明
许家林
陈家祥
轩大洋
魏祥平
张亮
吴建国
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Huaibei Mining Group Co Ltd
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Huaibei Mining Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/005Monitoring or checking of cementation quality or level
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/04Directional drilling

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Quality & Reliability (AREA)
  • Geophysics (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The invention discloses a kind of old goaf grouting filling control earth's surface residual settlement method, comprises the following steps:1) old goaf basic parameter and information are collected;2) calculate in old goaf can grouting filling spatial altitude;3) construction ground drilling, several group of vertical drilling of constructing from the earth's surface of old above goaf to goaf;4) flushing liquor total loss in hole is such as run in drilling process, then stop drilling, and implement grouting filling this layer of position, after grouting pressure to be formed, stop grouting filling, be changed to continue downwards drilling, so circulate, until getting into seat earth, and implement last wheel grouting filling, so as to complete old goaf filling;5) carry out supplementing grouting filling.The present invention implements grouting filling using surface drilling, remaining crack that can effectively in sensible old goaf, can reach filling effect without the need for the large-area packing job space that connect.

Description

A kind of old goaf grouting filling control earth's surface residual settlement method
Technical field
The present invention relates to field of mining, more particularly to a kind of old goaf grouting filling control earth's surface residual settlement method.
Background technology
As economic and society continuous development, urban construction scale are gradually increased, increasing proposed building is (such as House, Factory Building etc.) positioned at the old above goaf in colliery.Due to the disrumpent feelings rock mass in old goaf and its top, to yet suffer from part residual Remaining space, As time goes on and under proposed building load (such as gravity) effect, in old goaf, rock stratum may be again Compacting, causes rock stratum and earth's surface residual settlement occur, brings larger security risk to top building.Therefore, to old mined out It is the important measures for ensureing New Buildings safety in such region to carry out administering, controlling earth's surface residual settlement.In prior art The method for disclosing many coal-face support rear goaf fillings, these technologies are required to safeguard large volume of connection Filling can be implemented in mined out space, but the almost all sillar that is broken is full of in old goaf, it is difficult to form large-area company Logical packing job space.
The content of the invention
The technical problem to be solved is to provide a kind of old goaf grouting filling control earth's surface residual settlement side Method, with above-mentioned multinomial defect caused by solving in prior art.
For achieving the above object, the present invention provides following technical scheme:A kind of old goaf grouting filling control earth's surface Residual settlement method, comprises the following steps:
1) old goaf basic parameter and information are collected, including limit of mining, mining height M, mined out section length, goaf width Degree, can grouting filling height, adopt depth, surface subsidence amount S, caving zone height h;
2) calculate in old goaf can grouting filling spatial altitude, its value for mining height M deduct successively surface subsidence amount S, Difference obtained by remaining broken bulk (0.03~0.05) h of the goaf limit;
3) construction ground drilling, several group of vertical drilling of constructing from the earth's surface of old above goaf to goaf, drilling It is 50~100m along the spacing of old goaf length direction, drilling number is mined out section length divided by the spacing of wells;
4) flushing liquor total loss in hole is such as run in drilling process, is then stopped drilling, and is implemented grouting filling this layer of position, After grouting pressure to be formed, stop grouting filling, be changed to continue downwards drilling, so circulate, until seat earth is got into, and in fact Last wheel grouting filling is applied, so as to complete old goaf filling;
5) implement after grouting filling terminates after all drilled hole, the construction ground drilling in the range of the old dead zone, using core drill Enter, detect mortar thickness, if mortar thickness reaches the spatial altitude noted of calculating, show that grouting filling quality meets and require, it is no Then, construction inlet well should be continued around inspection hole, carries out supplementing grouting filling.
Preferably, the step 1) in, using mined out sector width, mined out section length, can grouting filling height three take advantage of Product determines grouting filling total amount.
Preferably, the step 3) in, the whole hole of drilling is constructed to goaf.
Preferably, the step 4) in, grouting pressure should be less than the deadweight of above goaf overlying strata.
Preferably, the radius for checking construction inlet well around drilling is 10-20m.
Preferably, the drilling drilling is that side bores marginal not, sees that mode is noted in leakage with grouting filling.
Using the beneficial effect of above technical scheme it is:The present invention and the direct placement method phase in coal-face support rear Than the present invention implements grouting filling using surface drilling, remaining crack that can effectively in sensible old goaf, need not big face Long-pending connection packing job space, even if in the case of old goaf internal crack degree of communication is less, also can be bored by encrypting Hole reaches effective filling in crack, thus can have the residual settlement of earth's surface in control control construction zone.
Description of the drawings
Fig. 1 is the schematic diagram of bored grouting filling of the present invention.
Wherein, 1-- drillings, 2-- goafs, 3-- grouting fillings.
Specific embodiment
Describe the preferred embodiment of the present invention below in conjunction with the accompanying drawings in detail.
Fig. 1 shows the specific embodiment of the present invention:A kind of old goaf grouting filling control earth's surface residual settlement method, Comprise the following steps:
1) old goaf basic parameter and information are collected, including limit of mining, mining height M, 2 length of goaf, goaf 2 is wide Degree, can grouting filling height, adopt depth, surface subsidence amount S, caving zone height h;
2) calculate in old goaf can grouting filling spatial altitude, its value for mining height M deduct successively surface subsidence amount S, Difference obtained by remaining broken bulk (0.03~0.05) h of the goaf limit;
3) construction ground drilling, several group of vertical drilling 1 of constructing from the earth's surface of old above goaf to goaf, drilling 1 along old goaf length direction spacing be 50~100m, drilling 1 number be mined out section length divided by the spacing of wells;
4) flushing liquor total loss in hole is such as run in drilling process, is then stopped drilling, and is implemented grouting filling this layer of position 3, after grouting pressure to be formed, stop grouting filling 3, be changed to continue downwards drilling, so circulate, until seat earth is got into, And implement last wheel grouting filling, so as to complete old goaf filling;
5) implement after grouting filling terminates after all drilled hole, the construction ground drilling in the range of the old dead zone, using core drill Enter, detect mortar thickness, if mortar thickness reaches the spatial altitude noted of calculating, show that grouting filling quality meets and require, it is no Then, construction inlet well should be continued around inspection hole, carries out supplementing grouting filling.
Step 1) in, using mined out sector width, mined out section length, can the product of grouting filling height three determine that slip casting is filled Fill out total amount;Step 3) in, the whole hole of drilling is constructed to goaf;Step 4) in, grouting pressure should be less than above goaf overlying strata Deadweight.
Around inspection drilling, the radius of construction inlet well is 10-20m;Drilling drilling with grouting filling be side bore marginal not, See that mode is noted in leakage.
Compared with the direct placement method in coal-face support rear, the present invention implements slip casting using surface drilling to the present invention Filling, remaining crack that can effectively in sensible old goaf connect packing job space without the need for large-area, even if old In the case of goaf internal crack degree of communication is less, can also pass through to encrypt drilling and reach effective filling in crack, thus can be with There is the residual settlement of earth's surface in control control new building object area.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art For, without departing from the concept of the premise of the invention, some deformations and improvement can also be made, these belong to the present invention Protection domain.

Claims (6)

1. a kind of old goaf grouting filling controls earth's surface residual settlement method, it is characterised in that comprise the following steps:
1) old goaf basic parameter and information are collected, including limit of mining, mining height M, mined out section length, mined out sector width, can Grouting filling height, adopt depth, surface subsidence amount S, caving zone height h;
2) calculate in old goaf can grouting filling spatial altitude, its value deducts surface subsidence amount S, mined out successively for mining height M Difference obtained by remaining broken bulk (0.03~0.05) h of area's limit;
3) construction ground drilling, several group of vertical drilling of constructing from the earth's surface of old above goaf to goaf, drilling is along old The spacing of goaf length direction is 50~100m, and drilling number is mined out section length divided by the spacing of wells;
4) flushing liquor total loss in hole is such as run in drilling process, is then stopped drilling, and is implemented grouting filling this layer of position, treat shape Into after grouting pressure, stop grouting filling, be changed to continue downwards drilling, so circulate, until getting into seat earth, and implement most Latter wheel grouting filling, so as to complete old goaf filling;
5) implement after grouting filling terminates after all drilled hole, the construction ground drilling in the range of the old dead zone is crept into using coring, inspection Mortar thickness is surveyed, if mortar thickness reaches the spatial altitude noted of calculating, is shown that grouting filling quality meets and is required, otherwise, Continue construction inlet well around inspection hole, carry out supplementing grouting filling.
2. old goaf grouting filling according to claim 1 controls earth's surface residual settlement method, it is characterised in that described Step 1) in, using mined out sector width, mined out section length, can the product of grouting filling height three determine grouting filling total amount.
3. old goaf grouting filling according to claim 1 controls earth's surface residual settlement method, it is characterised in that described Step 3) in, the whole hole of drilling is constructed to goaf.
4. old goaf grouting filling according to claim 1 controls earth's surface residual settlement method, it is characterised in that described Step 4) in, grouting pressure should be less than the deadweight of above goaf overlying strata.
5. old goaf grouting filling according to claim 1 controls earth's surface residual settlement method, it is characterised in that described Around inspection drilling, the radius of construction inlet well is 10-20m.
6. old goaf grouting filling according to claim 1 controls earth's surface residual settlement method, it is characterised in that described Drilling drilling is that side bores marginal not, sees that mode is noted in leakage with grouting filling.
CN201611093416.8A 2016-12-02 2016-12-02 A kind of old goaf grouting filling control earth's surface residual settlement method Active CN106555607B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107044280A (en) * 2017-06-22 2017-08-15 中国矿业大学 A kind of bored grouting detection method of mining overburden absciss layer distribution characteristics
WO2018192066A1 (en) * 2017-04-19 2018-10-25 中国矿业大学 Method for controlling subsidence area caused by underground mining in adjoining open-pit mine
CN108798769A (en) * 2018-06-25 2018-11-13 山东科技大学 Item adopts goaf integrated synthesis and administers construction method
CN110425004A (en) * 2019-08-16 2019-11-08 徐州中国矿大岩土工程新技术发展有限公司 The floated guide and construction method in the underwater goaf of paste body filling
CN111794799A (en) * 2020-07-16 2020-10-20 中煤天津设计工程有限责任公司 Solid waste treatment technology for ground drilling, grouting and filling of old goaf
CN112746846A (en) * 2021-02-05 2021-05-04 中煤科工集团西安研究院有限公司 Non-settling coal mining method and device for mining and filling parallel with ground directional long drill hole
CN114396242A (en) * 2021-12-23 2022-04-26 华北科技学院(中国煤矿安全技术培训中心) Coal mine gas drainage hole sealing device convenient to adjust
CN114607379A (en) * 2022-03-28 2022-06-10 中国矿业大学 Overburden rock compaction grouting filling continuous mining method

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CN102704933A (en) * 2012-05-25 2012-10-03 中国矿业大学 Isolated-section grouting filling coal-mining method for mining overburden rock
CN104408277A (en) * 2014-09-28 2015-03-11 沈阳大学 Method for predicting, preventing and controlling earth surface residual movement and deformation caused by newly-built building in mine lot
CN105257334A (en) * 2015-09-30 2016-01-20 中国矿业大学 Surface drilling pressure relief gas extraction and overlying strata isolated grouting filling synchronous implementing method
CN105422170A (en) * 2015-11-02 2016-03-23 安徽理工大学 Grouting reinforcement treatment method for mid-depth goaf below building foundation
CN106150546A (en) * 2016-08-05 2016-11-23 太原理工大学 A kind of method carrying out goaf part filling according to earth's surface subsidence
CN104763466B (en) * 2015-03-19 2017-01-11 中国矿业大学 Method for detecting active diffusion radius of covered rock separation grouting filling slurry

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CN102705001A (en) * 2012-05-25 2012-10-03 中国矿业大学 Isolated-section two-hole split-layer grouting filling well location method for mining overburden rock
CN102704933A (en) * 2012-05-25 2012-10-03 中国矿业大学 Isolated-section grouting filling coal-mining method for mining overburden rock
CN104408277A (en) * 2014-09-28 2015-03-11 沈阳大学 Method for predicting, preventing and controlling earth surface residual movement and deformation caused by newly-built building in mine lot
CN104763466B (en) * 2015-03-19 2017-01-11 中国矿业大学 Method for detecting active diffusion radius of covered rock separation grouting filling slurry
CN105257334A (en) * 2015-09-30 2016-01-20 中国矿业大学 Surface drilling pressure relief gas extraction and overlying strata isolated grouting filling synchronous implementing method
CN105422170A (en) * 2015-11-02 2016-03-23 安徽理工大学 Grouting reinforcement treatment method for mid-depth goaf below building foundation
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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11085296B2 (en) 2017-04-19 2021-08-10 China University Of Mining And Technology Method for controlling subsidence area caused by underground mining in adjoining open-pit mine
WO2018192066A1 (en) * 2017-04-19 2018-10-25 中国矿业大学 Method for controlling subsidence area caused by underground mining in adjoining open-pit mine
AU2017410432B2 (en) * 2017-04-19 2020-08-20 China University Of Mining And Technology Method for controlling subsidence area caused by underground mining in adjoining open-pit mine
CN107044280A (en) * 2017-06-22 2017-08-15 中国矿业大学 A kind of bored grouting detection method of mining overburden absciss layer distribution characteristics
WO2018233329A1 (en) * 2017-06-22 2018-12-27 中国矿业大学 Drilling and grouting detection method for distribution characteristics of mining-induced bed separation in overlying strata
CN108798769A (en) * 2018-06-25 2018-11-13 山东科技大学 Item adopts goaf integrated synthesis and administers construction method
CN108798769B (en) * 2018-06-25 2020-06-02 山东科技大学 Strip goaf integrated comprehensive treatment construction method
CN110425004A (en) * 2019-08-16 2019-11-08 徐州中国矿大岩土工程新技术发展有限公司 The floated guide and construction method in the underwater goaf of paste body filling
CN111794799A (en) * 2020-07-16 2020-10-20 中煤天津设计工程有限责任公司 Solid waste treatment technology for ground drilling, grouting and filling of old goaf
CN112746846A (en) * 2021-02-05 2021-05-04 中煤科工集团西安研究院有限公司 Non-settling coal mining method and device for mining and filling parallel with ground directional long drill hole
CN112746846B (en) * 2021-02-05 2023-02-28 中煤科工集团西安研究院有限公司 Non-settling coal mining method and device for mining and filling parallel with ground directional long drill hole
CN114396242A (en) * 2021-12-23 2022-04-26 华北科技学院(中国煤矿安全技术培训中心) Coal mine gas drainage hole sealing device convenient to adjust
CN114396242B (en) * 2021-12-23 2023-09-01 华北科技学院(中国煤矿安全技术培训中心) Colliery gas drainage hole sealing device convenient to adjust
CN114607379A (en) * 2022-03-28 2022-06-10 中国矿业大学 Overburden rock compaction grouting filling continuous mining method
CN114607379B (en) * 2022-03-28 2022-12-13 中国矿业大学 Continuous mining method for overlying strata compaction grouting filling

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