CN103266899A - Method for controlling floor heave deformation of soft rock roadway by means of anchor pile continuous wall - Google Patents
Method for controlling floor heave deformation of soft rock roadway by means of anchor pile continuous wall Download PDFInfo
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- CN103266899A CN103266899A CN2013102130359A CN201310213035A CN103266899A CN 103266899 A CN103266899 A CN 103266899A CN 2013102130359 A CN2013102130359 A CN 2013102130359A CN 201310213035 A CN201310213035 A CN 201310213035A CN 103266899 A CN103266899 A CN 103266899A
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Abstract
The invention discloses a method for controlling floor heave deformation of a soft rock roadway by means of an anchor pile continuous wall. The method for controlling the floor heave deformation of the soft rock roadway by means of the anchor pile continuous wall comprises the flowing steps that a, a roadway base plate is dug according to a given central line and a given height, wall structure grooves are vertically dug downwards along two walls, and then a round pile pit is dug downwards on the bottom of each groove; b, I-steel is inserted into the round pile pits after the round pile pits are dug, concrete is poured into the pipe pits, a rectangular reinforcing cage which is tied in advance is placed in each groove, bar-mat reinforcement is paved on the bottom surface of the roadway, two sides of the bar-mat reinforcement are connected with reinforcing steel bars of the reinforced concrete walls, the walls are poured with concrete, and finally concrete is sprayed on the bottom surface of the roadway; c, the length of the roadway base plate is controlled according to need and the step a and the step b are repeated until the anchor pile continuous wall is constructed. The method for controlling the floor heave deformation of the soft rock roadway by means of the anchor pile continuous wall has the advantages that a slip line of deformation and crack of a surrounding rock can be effectively cut off, the surrounding rock is prevented from moving and sliding, and the floor heave degree is reduced. The method for controlling the floor heave deformation of the soft rock roadway by means of the anchor pile continuous wall is particularly suitable for being used for managing wide-range floor heave disasters of coal mining roadways under the extreme conditions of high stress, high expansion, extremely soft rocks and the like.
Description
Technical field
The present invention relates to the soft rock roadway support method, relate in particular to a kind of method of utilizing the distortion of anchoring pile diaphragm wall control soft-rock tunnel pucking.
Background technology
The pucking deformation failure is the ubiquitous mode of failure of coal mine roadway, and particularly outstanding in soft-rock tunnel, violent pucking distortion can cause the unstability of whole tunnel, reduce the tunnel useful area, influence the normal use in tunnel, increase maintenance and drop into, even can cause serious accident.
At present, the method for improvement soft-rock tunnel pucking has a variety of, plays anchor pole and closed steel bracket etc. as arch of the anti-end, floor grouting, base plate.For low stress or the not too soft situation of lithology, said method can effectively be controlled the distortion of country rock pucking.But under heavily stressed or dead-soft rock condition, rheology distortion or shearing slip distortion very easily take place in the roadway floor rock mass, and said method can not effectively be controlled the pucking deformation failure in this tunnel, and it is unreliable to exist safety to go up, economically irrational problem.
According to mechanical analysis as can be known, cut off the skid wire that surrouding rock deformation is broken by diaphragm wall, can stop country rock motion and slippage, thereby reduce tunnel pucking degree.Yet when traditional diaphragm wall was used for coal mine roadway, its rigidity and insufficient strength can not be born huge pressure from surrounding rock; When adopting reinforced concrete wall, as Chinese patent 2012103070011, because constructional difficulties, the body of wall height is restricted, and can't be deep into roadway floor and stablize the rock stratum, is difficult to obtain satisfied effect.
Summary of the invention
The objective of the invention is to address the above problem by the fit applications of steel sheet pile and reinforced concrete wall, the method for a kind of anchoring pile diaphragm wall control soft-rock tunnel pucking distortion is provided.
Its technical solution is:
The method of a kind of anchoring pile diaphragm wall control soft-rock tunnel pucking distortion comprises the following steps:
A, the form that cooperates artificial pick to dig with pneumatic pick by given center line and dig roadway floor highly clearly, are dug out the wall construction groove along two walls, the degree of depth 600 ~ 1000mm, width 350 ~ 500mm straight down; Dig out the circular stake hole that the degree of depth is 700 ~ 1200mm, diameter 250 ~ 400mm at bottom land downwards every 800 ~ 1200mm then;
After b, excavation are finished, the circular stake that the vertical insertion of i iron is dug is in advance cheated, to the interior concreting in stake hole, and vibration compacting, after treating that concrete has certain intensity, the rectangle reinforcing cage of colligation is in advance put into groove, be connected with the reinforcing bar of reinforced concrete wall at bottom surface, tunnel laying steel mesh reinforcement and with its both sides, using the poured concrete wall body then, is the concrete of 150 ~ 250mm at bottom surface, tunnel spray thickness at last;
C, handle the length of roadway floor as required, repeating step a, b finish until the anchoring pile construction of diaphragm wall.
Described rectangle reinforcing cage comprises main muscle and stirrup, and main muscle arranges that vertically each body of wall comprises 6 ~ 10 main muscle, and the stirrup disposition interval is 200 ~ 400mm.
Described i iron, length are wall construction gash depth and stake hole degree of depth sum, can change waste and old steel rail etc. into according to the colliery current material.
The present invention compared with prior art, the advantage and the beneficial effect that have comprise:
(1) in the process in excavation wall construction groove and circular stake hole, the stress of primary rock obtains certain release, has reduced the soft rock roadway support difficulty; (2) anchoring pile is deep into roadway floor and stablizes the rock stratum, and the diaphragm wall structure then can stop country rock to the rheology distortion of bottom, tunnel, both in conjunction with using, improved the rigidity of body of wall, and can effectively cut off the skid wire that surrouding rock deformation is broken, stop country rock motion and slippage, thereby reduce the pucking degree; (3) form an integral body with the anchoring pile diaphragm wall after the concrete setting of the steel mesh reinforcement of roadway floor laying and injection, its pressure from surrounding rock of bearing can be delivered to the base slab stability rock stratum, thereby it is stable to keep roadway floor, is specially adapted to the improvement of pucking distortion on a large scale disaster in stope of coal mines tunnel under the extreme conditions such as heavily stressed, high expansion and dead-soft rock.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is structure section schematic diagram of the present invention;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is rectangle reinforcing cage arrangement of reinforcement.
Marginal data, 1-diaphragm wall, 2-steel sheet pile, 3-sprayed mortar, 4-steel mesh reinforcement, 5-i iron, 6-master's muscle, 7-stirrup.
Description of drawings
As illustrated in fig. 1 and 2, the method for a kind of anchoring pile diaphragm wall control of the present invention soft-rock tunnel pucking distortion is characterized in that comprising the following steps:
A, cooperate the form of manually digging with pick with pneumatic pick, by given center line and dig roadway floor highly clearly, dig out continuous groove straight down along the two side, tunnel, be used for settling diaphragm wall 1, degree of depth 750mm, width 400mm; Then at bottom land every 1000mm, digging out the degree of depth downwards is 750mm, diameter is the circular stake hole of 350mm, is used for settling steel sheet pile 2;
After b, excavation are finished, be the circular stake hole that the i iron 5 vertical insertions of 1500mm are dug in advance with length, to the interior concreting (can mix a certain amount of accelerating admixture) in stake hole, and vibration compacting, guarantee that i iron is wrapped up fully by concrete, after treating that concrete has certain intensity, the rectangle reinforcing cage of colligation is in advance put into groove, be connected with the reinforcing bar of reinforced concrete wall at bottom surface, tunnel laying steel mesh reinforcement 4 and with its both sides, use the poured concrete wall body then, at bottom surface, tunnel construction sprayed mortar 3, thickness is 150mm at last;
C, handle the length of roadway floor as required, repeating step a, b finish until the anchoring pile construction of diaphragm wall.
Described rectangle reinforcing cage comprises main muscle 6 and stirrup 7 as shown in Figure 3, and main muscle 6 arranges that vertically each body of wall comprises six main muscle, and stirrup 7 disposition intervals are 300mm.The model of described i iron 5 adopts 25a, can change waste and old steel rail etc. into according to the colliery current material.
The above embodiment is a kind of of the more preferably concrete embodiment of the present invention, and the common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.
Claims (3)
1. the method for anchoring pile diaphragm wall control soft-rock tunnel pucking distortion is characterized in that comprising the following steps:
A, the form that cooperates artificial pick to dig with pneumatic pick by given center line and dig roadway floor highly clearly, are dug out the wall construction groove along two walls, the degree of depth 600 ~ 1000mm, width 350 ~ 500mm straight down; Dig out the circular stake hole that the degree of depth is 700 ~ 1200mm, diameter 250 ~ 400mm at bottom land downwards every 800 ~ 1200mm then;
After b, excavation are finished, the circular stake that the vertical insertion of i iron is dug is in advance cheated, to the interior concreting in stake hole, and vibration compacting, after treating that concrete has certain intensity, the rectangle reinforcing cage of colligation is in advance put into groove, be connected with the reinforcing bar of reinforced concrete wall at bottom surface, tunnel laying steel mesh reinforcement and with its both sides, using the poured concrete wall body then, is the concrete of 150 ~ 250mm at bottom surface, tunnel spray thickness at last;
C, handle the length of roadway floor as required, repeating step a, b finish until the anchoring pile construction of diaphragm wall.
2. the method for a kind of anchoring pile diaphragm wall control soft-rock tunnel pucking as claimed in claim 1 distortion is characterized in that described rectangle reinforcing cage, comprise main muscle and stirrup, main muscle arranges that vertically each body of wall comprises 6 ~ 10 main muscle, and the stirrup disposition interval is 200 ~ 400mm.
3. the method for a kind of anchoring pile diaphragm wall control soft-rock tunnel pucking as claimed in claim 1 distortion is characterized in that, described i iron, and length is wall construction gash depth and stake hole degree of depth sum, can change waste and old steel rail etc. into according to the colliery current material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102130359A CN103266899A (en) | 2013-05-31 | 2013-05-31 | Method for controlling floor heave deformation of soft rock roadway by means of anchor pile continuous wall |
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| CN2013102130359A CN103266899A (en) | 2013-05-31 | 2013-05-31 | Method for controlling floor heave deformation of soft rock roadway by means of anchor pile continuous wall |
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| CN103266899A true CN103266899A (en) | 2013-08-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590840A (en) * | 2013-11-29 | 2014-02-19 | 王威 | Floor grouting method |
| CN103628898A (en) * | 2013-11-15 | 2014-03-12 | 山东科技大学 | Continuous wall supporting method for preventing floor heaving of roadway |
| CN105484757A (en) * | 2015-12-18 | 2016-04-13 | 中国神华能源股份有限公司 | Method and structure for treating bottom heaving of fully-mechanized mining face gate roadway |
| CN115964902A (en) * | 2023-03-16 | 2023-04-14 | 太原理工大学 | Method for determining high-stress large-section soft rock bottom plate fracture area and controlling bottom heave |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699547A (en) * | 1985-03-15 | 1987-10-13 | Seegmiller Ben L | Mine truss structures and method |
| DE3820700A1 (en) * | 1988-06-18 | 1989-12-21 | Ruhrkohle Ag | Compound anchor support system |
| CN101509383A (en) * | 2009-03-24 | 2009-08-19 | 徐州工程学院 | Tunnel footing anchor pouring reinforcement anti bottom expanding method and construction technique |
| CN101915108A (en) * | 2010-06-22 | 2010-12-15 | 中国矿业大学 | Method for controlling floor heave of dynamic pressure tunnel |
| CN101886545B (en) * | 2010-07-05 | 2011-11-30 | 北京科技大学 | Method for treating bottom heave of soft rock roadway by using micro broken stone pipe cast pile |
| CN102444407A (en) * | 2011-12-12 | 2012-05-09 | 中铁二局股份有限公司 | Construction deformation control method for lower step of high crustal stress weak surrounding rock tunnel |
| CN101839140B (en) * | 2010-03-31 | 2012-05-23 | 中国矿业大学 | Method for reinforcing roadway floor by grouting |
| CN102797480A (en) * | 2012-08-27 | 2012-11-28 | 中国矿业大学 | Method for controlling bottom squeeze deformation of high-stress soft rock roadway by using discontinuous pressure-bearing grating concrete wall |
-
2013
- 2013-05-31 CN CN2013102130359A patent/CN103266899A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699547A (en) * | 1985-03-15 | 1987-10-13 | Seegmiller Ben L | Mine truss structures and method |
| DE3820700A1 (en) * | 1988-06-18 | 1989-12-21 | Ruhrkohle Ag | Compound anchor support system |
| CN101509383A (en) * | 2009-03-24 | 2009-08-19 | 徐州工程学院 | Tunnel footing anchor pouring reinforcement anti bottom expanding method and construction technique |
| CN101839140B (en) * | 2010-03-31 | 2012-05-23 | 中国矿业大学 | Method for reinforcing roadway floor by grouting |
| CN101915108A (en) * | 2010-06-22 | 2010-12-15 | 中国矿业大学 | Method for controlling floor heave of dynamic pressure tunnel |
| CN101886545B (en) * | 2010-07-05 | 2011-11-30 | 北京科技大学 | Method for treating bottom heave of soft rock roadway by using micro broken stone pipe cast pile |
| CN102444407A (en) * | 2011-12-12 | 2012-05-09 | 中铁二局股份有限公司 | Construction deformation control method for lower step of high crustal stress weak surrounding rock tunnel |
| CN102797480A (en) * | 2012-08-27 | 2012-11-28 | 中国矿业大学 | Method for controlling bottom squeeze deformation of high-stress soft rock roadway by using discontinuous pressure-bearing grating concrete wall |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628898A (en) * | 2013-11-15 | 2014-03-12 | 山东科技大学 | Continuous wall supporting method for preventing floor heaving of roadway |
| CN103628898B (en) * | 2013-11-15 | 2016-01-20 | 山东科技大学 | A kind of for preventing the diaphragm wall supporting method of Floor Heave in Roadway |
| CN103590840A (en) * | 2013-11-29 | 2014-02-19 | 王威 | Floor grouting method |
| CN105484757A (en) * | 2015-12-18 | 2016-04-13 | 中国神华能源股份有限公司 | Method and structure for treating bottom heaving of fully-mechanized mining face gate roadway |
| CN115964902A (en) * | 2023-03-16 | 2023-04-14 | 太原理工大学 | Method for determining high-stress large-section soft rock bottom plate fracture area and controlling bottom heave |
| CN115964902B (en) * | 2023-03-16 | 2023-05-16 | 太原理工大学 | Determination and bottom drum treatment method for high-stress large-section soft rock bottom plate fracture area |
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Application publication date: 20130828 |