CN206246122U - The system of the preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation - Google Patents
The system of the preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation Download PDFInfo
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- CN206246122U CN206246122U CN201621134216.8U CN201621134216U CN206246122U CN 206246122 U CN206246122 U CN 206246122U CN 201621134216 U CN201621134216 U CN 201621134216U CN 206246122 U CN206246122 U CN 206246122U
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Abstract
A kind of system of the preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation, the system for belonging to the shaft deformation destruction of preventing and treating coal mine shaft lining.Specially：1. according to profound unconsolidated formation thickness and soil parameters, settlement influence scope of the pit shaft to surrounding formation is calculated；2. grouting and reinforcing is carried out to the dehydration water-bearing layer in the stratum of settlement influence scope, grouting and reinforcing scope can be slightly larger than settlement influence scope, reach the purpose of water sealing consolidation；3. suitable compatible deformation material is selected to fill the stratigraphic boundary of coverage vertically, material can play isolation stratum vertical force, and can transmit the effect of stratum horizontal force；4. depth of cracking closure reaches 1m below bedrock surface, fill method can using single drilling or it is porous work continuously, drilling is filled simultaneously, ultimately forms tubular encirclement.This method from coordinate stratum sedimentation and deformation angle, isolation vertical deformation with prevent the generation of additional stress on shaft lining and can keep horizontal force presence ensure pit shaft stabilization.
Description
Technical field
The utility model is a kind of system of new preventing and treating coal mine shaft lining shaft deformation destruction, i.e. stratum settlement deformation association
The system of the preventing and treating coal mine shaft lining shaft deformation destruction of tune.
Technical background
Since the eighties in 20th century, the coal mine shaft lining in the mining area such as China Xu, Huaihe River, great Tun, Yanzhou occurs in that a kind of country
Outer rare non-adopting property pit shaft rupture.This disaster easily causes shaft deformation rupture, infiltration, and severe one causes card tank, water burst to gush
Sand, or even stop production, serious potential safety hazard is brought to coal production, coal mining enterprise is born huge economic loss.From
Since 1987, the vertical simulation wellbore hole built in the East China thick surface soil of China has had more than 80 to be subjected to brokenly
It is bad, have a strong impact on the safety in production of mine.
Wherein cause the geologic(al) factor of the various modifications such as inclination, dislocation, fracture, the seepage of shaft of vertical well generation and destruction
Have：Pit shaft passes through stratum, rock stratum, coal seam property；Geological structure；Hydrogeologic condition etc..Wherein, unstable water-bearing layer is to vertical
The influence of wellbore stability, it is especially prominent in recent years.Especially for nourishment condition it is weaker the 4th be bottom aquifer, largely
It is hydrophobic water-bearing layer will be caused unstable, cause the compression of deep soil consolidation and the sedimentation of upper formation to have downward to pit shaft
Relative motion, produces vertical additional force, and vertical additional stress is produced in pit shaft, and as buried depth increases, pit shaft additional stress exists
Soil layer reaches maximum with bedrock surface intersection.When stress exceedes pit shaft intensity, there is rupture in pit shaft, and the equipment in pit shaft occurs
Deformation can further influence Shaft Stability.As can be seen here, the destruction of pit shaft has direct relation with the large area sedimentation on stratum.
So far, existing many experts and scholars it is hydrophobic for a long time to water-bearing layer cause consolidation settlement cause shaft lining breakage with
And control measures have made intensive studies.The pit shaft rupture prophylactico-therapeutic measures for using domestic at present mainly has：
1. stratum slip casting method.It is divided into two kinds of " grouting behind shaft or drift lining " and " surface grout injection " by construction method.Grouting behind shaft or drift lining is in well
Drilled in cylinder and slip casting is carried out to stratum through the borehole wall；Surface grout injection is to carry out grouting and reinforcing in ground drilling to desired depth.Note
Preferably, the sedimentation compression in the water-bearing layer due to simply controlling pit shaft periphery, reinforcing scope is limited, over time for slurry processes early stage effect
Increasing large area stratum settlement can gradually be reproduced, and early stage is reinforced pit shaft and secondary destruction easily occurs.
2. release channel process.A groove is circumferentially opened in the big wellbore section of additional compression, compressible material is placed in groove,
Pit shaft is possessed certain decrement, reach the purpose for reducing pit shaft stress.But with the increase of compression, pressure relief groove meeting
Alternating compression function is lost, need to be slotted again, and the internal pipeline problem on deformation that shaft deformation is brought is also required to solve.
Plus snare wall approach 3..In the big wellbore section of additional compression and destruction wellbore section, one layer of borehole wall is covered again in pit shaft
Or original borehole wall is reinforced with channel-section steel walling crib.Plus snare wall approach can take space in pit shaft, pit shaft minimum diameter is reduced.
Because reinforcement principle is based on anti-, the length of time one is reinforced section and occurs destroying again again.
4. water-bearing layer water flood.It is that water filling maintenance is carried out to water-bearing layer or main compression layer, has the disadvantage that the time is long, water injection rate
If control is bad can adversely affect, source quality selection is improper to be polluted to water-bearing layer water body.
Above administering method, all be present miscellaneous, it is impossible to which the effective shaft deformation that solves destroys this problem,
It is therefore desirable to study safer and the improvement well shaft destroyed deformation from principle method.
According to well shaft destroyed mechanism, loose aquifer water level is in long-term on a declining curve, the compression of alluvium around pit shaft
Deformation is also a long process, to keep pit shaft will not destroy will be by stratum settlement to pit shaft influence be reduced or eliminated.
But the precedent of shaft deformation destruction is not up to the present prevented and treated using stratum settlement compatibility method also.
Utility model content
Technical problem：The purpose of this utility model is to provide for a kind of preventing and treating coal mine shaft lining well of stratum settlement compatibility of deformation
The system of cylinder deformation failure, solves effectively solve pit shaft change in existing coal mine shaft lining shaft deformation destruction control prece
The problem of shape destruction.
Technical scheme：What the purpose of this utility model was realized in：Preventing and treating coal mine shaft lining pit shaft of the present utility model becomes
The system and method for shape destruction includes that stratum settlement coordinates system, specially coordinates the sedimentation and deformation on stratum, to prevent and treat vertical well
The deformation failure of cylinder.
The system includes stratum (2) in shaft of vertical well (1), coverage, vertically isolation obturator (3), water-bearing layer slip casting
The outer stratum (7) of reinforcing body (4), basement rock (5), water-bearing layer (6) and coverage；There is water-bearing layer (6) in basement rock (5) top,
Water-bearing layer grouting and reinforcing body (4) are constituted in water-bearing layer (6), water-bearing layer grouting and reinforcing body (4) is full of shaft of vertical well (1) outward aqueous
Layer (6), and outer stratum (7) level of coverage is extended into 1~2m；In shaft of vertical well (1), vertical isolation obturator is set outward
(3) be, stratum (2) in initial settlement coverage between shaft of vertical well (1) and vertical isolation obturator (3), vertically every
It is the outer stratum (7) of initial settlement coverage outside obturator (3).
Described vertical isolation obturator (3) uses cement mortar, clay slurry, resin material or the chemical pulp of conventional proportions
The coordinating material being formulated is filled vertically；Described vertical isolation obturator (3) depth of cracking closure requirement is deep into basement rock
Layer (5) 1m, or through the severely-weathered layer on basement rock top layer, depth maximum is defined in both.
Described water-bearing layer grouting and reinforcing body (4) is formed according to pit shaft actual conditions by surface grout injection or grouting behind shaft or drift lining,
Detected after slip casting, to reach water sealing consolidation effect.
The coordinating material of vertical isolation obturator (3) is the cement mortar of conventional proportions：The ratio of water and cement should not
More than 0.5, sand does not exceed 3 times of cement；Clay slurry：Calcium treated mud, methyl mud, emulsified asphalt mud and Water-In-Oil
Equilibrium of activation mud often uses clay slurries；Or chemical grout material：Pollopas slurries, waterglass slurries, polyacrylamide
Slurries often use retaining wall class chemical grout；Basic demand to coordinating material is that shaping back boundary is smooth, the friction between soil layer
Power is smaller, plays buffer action.
Described fill method using vertical single drilling or it is porous work continuously or using other fill methods by material
Vertically filled；Described drilling is filled simultaneously, it is integral-filled after ultimately form tubular encirclement：To the coordination model selected
Enclose and drilled, bore mode uses symmetrical interval mode, drilling to desired depth to be typically deep into horizon d 1m, or pass through
The severely-weathered layer on basement rock top layer, depth maximum is defined in both.
Beneficial effect, as a result of such scheme, from the principle of well shaft destroyed, for the sedimentation for coordinating stratum becomes
Shape, realizes the prevention and controls of coal mine shaft lining shaft deformation destruction.The principle of the system is by vertical packing material, by pit shaft week
Stratum in particular range is enclosed to be isolated with neighboring area.The utility model is isolated from stratum sedimentation and deformation angle is coordinated
Vertical deformation is preventing the generation of additional stress on shaft lining and the presence of horizontal force can be kept to ensure the stabilization of shaft of vertical well with this.
Brief description of the drawings
Fig. 1 is longitudinal sectional drawing of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is grouting and reinforcing body horizontal sectional drawing of the present utility model.
In figure：1st, shaft of vertical well；2nd, stratum in coverage；3rd, obturator is vertically isolated；4th, water-bearing layer grouting and reinforcing body；
5th, basement rock；6th, water-bearing layer；7th, the outer stratum of coverage.
Specific embodiment
The system of preventing and treating coal mine shaft lining shaft deformation destruction of the present utility model includes that stratum settlement coordinates system, specially
Coordinate the sedimentation and deformation on stratum, to prevent and treat the deformation failure of shaft of vertical well.The pit shaft includes ground in shaft of vertical well 1, coverage
Layer 2, vertical isolation obturator 3, water-bearing layer grouting and reinforcing body 4, basement rock 5, water-bearing layer 6 and the outer stratum 7 of coverage；In basement rock 5
There is water-bearing layer 6 in top, the composition water-bearing layer grouting and reinforcing body 4 in water-bearing layer 6, and water-bearing layer grouting and reinforcing body 4 is full of vertical well
Water-bearing layer 6 outside cylinder 1, and the outer level of stratum 7 of coverage is extended into 1~2m；Filled out in the vertical isolation of outer setting of shaft of vertical well 1
Body 3 is filled, is stratum 2 in initial settlement coverage between shaft of vertical well 1 and vertical isolation obturator 3, filled out in vertical isolation
It is the outer stratum 7 of initial settlement coverage to fill outside body 3.
Described vertical isolation obturator 3 is matched somebody with somebody using the cement mortar of conventional proportions, clay slurry, resin material or chemical pulp
The injecting paste material of system is filled vertically；The described vertical depth of cracking closure of isolation obturator 3 requirement is deep under horizon d 5
1m, or through the severely-weathered layer on basement rock top layer, depth maximum is defined in both.
Described water-bearing layer grouting and reinforcing body 4 is formed according to pit shaft actual conditions by surface grout injection or grouting behind shaft or drift lining, is noted
Detected after slurry, to reach water sealing consolidation effect.
The coordinating material of the vertical isolation obturator 3 is the cement mortar of conventional proportions：The ratio of water and cement should not be big
In 0.5, sand does not exceed 3 times of cement；Clay slurry：Calcium treated mud, methyl mud, emulsified asphalt mud and Water-In-Oil are lived
Degree balance mud often uses clay slurries；Or chemical grout material：Pollopas slurries, waterglass slurries, polyacrylamide slurry
Liquid often uses retaining wall class chemical grout；Basic demand to coordinating material is that shaping back boundary is smooth, the frictional force between soil layer
It is smaller, play buffer action.
Described fill method using vertical single drilling or it is porous work continuously or using other fill methods by material
Vertically filled；Described drilling is filled simultaneously, it is integral-filled after ultimately form tubular encirclement：To the coordination model selected
Enclose and drilled, bore mode uses symmetrical interval mode, drilling to desired depth to be typically deep into horizon d 1m, or pass through
The severely-weathered layer on basement rock top layer, depth maximum is defined in both.
The utility model is further described below in conjunction with the accompanying drawings.
Embodiment 1：As shown in figure 1, a kind of preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation is
System, mainly by stratum 2 in shaft of vertical well 1, coverage, vertical isolation obturator 3, water-bearing layer grouting and reinforcing body 4, basement rock 5, contain
Water layer 6 and the outer stratum 7 of coverage are constituted.The formation volumes coordinated the need for described are the formation volumes with R as radius.It is described
Vertical isolation obturator 3 filled vertically by suitable coordinating material, the material can play isolation stratum vertical force, and
The effect of stratum horizontal force can be transmitted.The described vertical depth of cracking closure of isolation obturator 3 requirement reaches bedrock surface, is typically deep into
Horizon d 1m, or through the severely-weathered layer on basement rock top layer, depth maximum is defined in both.Described water-bearing layer grouting and reinforcing body
4 are formed according to pit shaft actual conditions by surface grout injection or grouting behind shaft or drift lining, are detected after slip casting, to reach water sealing consolidation work
With.
As shown in Fig. 2 a kind of system of the preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation, described vertical
It is the formation volumes for needing to coordinate between well shaft 1 and vertical isolation obturator 3.
As shown in figure 3, a kind of system of the preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation, described
Water-bearing layer grouting and reinforcing body 4, carries out slip casting and is formed by dehydration water-bearing layer, can play the purpose of water sealing consolidation.Slip casting adds
Solid scope slightly larger than need coordinate formation volumes.
The above is only preferred embodiment of the present utility model, it should be pointed out that：For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (3)
1. the system that a kind of preventing and treating coal mine shaft lining shaft deformation of stratum settlement compatibility of deformation is destroyed, it is characterised in that：The system
Including being completed shaft of vertical well（1）, stratum in coverage（2）, vertically isolate obturator（3）, water-bearing layer grouting and reinforcing body
（4）, basement rock（5）, water-bearing layer（6）With the outer stratum of coverage（7）；In basement rock（5）There is water-bearing layer in top（6）, in water-bearing layer
（6）Middle composition water-bearing layer grouting and reinforcing body（4）, water-bearing layer grouting and reinforcing body（4）Full of shaft of vertical well（1）Outer water-bearing layer（6）,
And extend into the outer stratum of coverage（7）Level is to 1 ~ 2m；In shaft of vertical well（1）It is outer that vertical isolation obturator is set（3）, vertical
Well shaft（1）With vertical isolation obturator（3）Between be stratum in initial settlement coverage（2）, in vertical isolation obturator
（3）It is outward the outer stratum of initial settlement coverage（7）.
2. a kind of preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation according to claim 1 is
System, it is characterised in that：Described vertical isolation obturator（3）Using the cement mortar of conventional proportions, clay slurry, resin material or
The coordinating material that chemical pulp is formulated is filled vertically；Described vertical isolation obturator（3）Depth of cracking closure requirement is deeply
To horizon d（5）1m, or through the severely-weathered layer on basement rock top layer, depth maximum is defined in both.
3. a kind of preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation according to claim 1 is
System, it is characterised in that：Described water-bearing layer grouting and reinforcing body（4）Pass through surface grout injection or grouting behind shaft or drift lining according to pit shaft actual conditions
Formed, detected after slip casting, to reach water sealing consolidation effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621134216.8U CN206246122U (en) | 2016-10-18 | 2016-10-18 | The system of the preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621134216.8U CN206246122U (en) | 2016-10-18 | 2016-10-18 | The system of the preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation |
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| Publication Number | Publication Date |
|---|---|
| CN206246122U true CN206246122U (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621134216.8U Withdrawn - After Issue CN206246122U (en) | 2016-10-18 | 2016-10-18 | The system of the preventing and treating coal mine shaft lining shaft deformation destruction of stratum settlement compatibility of deformation |
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| Country | Link |
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| CN (1) | CN206246122U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246188A (en) * | 2016-10-18 | 2016-12-21 | 中国矿业大学 | The system and method that the preventing and treating coal mine shaft lining shaft deformation of stratum settlement compatibility of deformation is destroyed |
| CN109577989A (en) * | 2018-12-13 | 2019-04-05 | 山东大学 | A kind of novel deeps mines shaft wall structure and construction method |
| CN111964932A (en) * | 2020-08-14 | 2020-11-20 | 中国矿业大学 | Mine shaft deformation simulation experiment device |
-
2016
- 2016-10-18 CN CN201621134216.8U patent/CN206246122U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246188A (en) * | 2016-10-18 | 2016-12-21 | 中国矿业大学 | The system and method that the preventing and treating coal mine shaft lining shaft deformation of stratum settlement compatibility of deformation is destroyed |
| CN109577989A (en) * | 2018-12-13 | 2019-04-05 | 山东大学 | A kind of novel deeps mines shaft wall structure and construction method |
| CN109577989B (en) * | 2018-12-13 | 2020-08-25 | 山东大学 | Novel deep mine shaft wall structure and construction method |
| CN111964932A (en) * | 2020-08-14 | 2020-11-20 | 中国矿业大学 | Mine shaft deformation simulation experiment device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170613 Effective date of abandoning: 20180918 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170613 Effective date of abandoning: 20180918 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |