CN108843385B - Method and device for efficiently exploring and draining water in mining mudstone watery roof roadway - Google Patents
Method and device for efficiently exploring and draining water in mining mudstone watery roof roadway Download PDFInfo
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- CN108843385B CN108843385B CN201810656978.1A CN201810656978A CN108843385B CN 108843385 B CN108843385 B CN 108843385B CN 201810656978 A CN201810656978 A CN 201810656978A CN 108843385 B CN108843385 B CN 108843385B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005065 mining Methods 0.000 title claims abstract description 11
- 239000011435 rock Substances 0.000 claims abstract description 47
- 238000005553 drilling Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 230000003578 releasing effect Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- E21F16/00—Drainage
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention relates to a method and a device for efficiently exploring and draining a roadway with a mudstone water-bearing roof, which divide a roadway roof into a shallow roadway surrounding rock plastic fracture area, a middle stable rock area and a deep water-bearing area. The method and the device can realize the efficient water prevention of the water-containing roof of the mining mudstone, ensure the stability of the surrounding rock of the roadway and have better popularization prospect.
Description
Technical Field
The invention belongs to the technical field of mine water exploration and drainage, and particularly relates to a method and a device for efficiently exploring and draining a roadway with a water-bearing roof of mining mudstone.
Background
In the mine engineering reality, if the overlying strata of the coal seam has a water-bearing stratum, the overlying strata is broken when the working face is stoped, water in the water-bearing stratum is inevitably gushed to the working face, even water gushing disasters are generated, water is required to be detected and released before mining, and the water content of the roof is drained in advance. But the water drainage technique is visited to the tradition mainly adopts same sleeve pipe, is difficult to deal with the particular case of different position stratum, and deep sleeve pipe causes the jam very easily at the in-process of visiting the water drainage, and the hydrophobic effect that the sleeve pipe that the middle part has the hole played is very little, often causes the unnecessary waste, and the shallow portion is very easy to the sleeve pipe extrusion deformation because the huge deformation pressure in plastic zone. Meanwhile, a reasonable drilling angle which is easy to detect and drain and is easy to control the surrounding rock of the roadway is lacked. This patent is to above-mentioned condition, is divided into shallow portion tunnel country rock plastic fracture district with the tunnel roof, and middle part stable rock layer district and deep water-containing layer district, three kinds of subregion adopt the sleeve pipe of different forms, when realizing high-efficient waterproof, has also guaranteed the stability of tunnel country rock.
Disclosure of Invention
The invention aims to provide a method and a device for efficiently exploring and draining a roadway with a mudstone water-bearing roof, wherein in the process of exploring and draining water in a mine, the roadway roof is divided into a shallow roadway surrounding rock plastic fracture area, a middle stable rock area and a deep water-bearing area, and different types of sleeves are adopted in the three areas, so that corresponding problems are solved aiming at different conditions.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for efficiently exploring and draining water in a roadway with a mudstone water-containing roof comprises the steps of dividing a roadway roof into a shallow roadway surrounding rock plastic fracture area, a middle stable rock area and a deep water-containing area, wherein the three areas adopt different forms of sleeves, when a water exploring and draining drill hole is drilled, the drilling angle is consistent with the maximum depth of a plastic area, the best water draining effect is achieved, and water accumulation of the shallow plastically fractured surrounding rock of the roadway is prevented.
According to the method and the device for efficiently exploring and releasing the water in the mining mudstone watery roof roadway, aiming at a shallow roadway surrounding rock plastic fracture area, the outer part of the sleeve is provided with the longitudinal rib to prevent the bending in the drilling process, meanwhile, the circular rib is arranged to prevent the extrusion deformation of the sleeve under huge plastic deformation pressure, and holes are uniformly distributed on the surface of the sleeve to facilitate the water body to flow out. Aiming at the problem that the middle stable rock stratum has less water content, the longitudinal ribs are directly arranged outside the sleeve to prevent the sleeve from bending in the deep hole drilling process, and the surface of the sleeve is not provided with holes and is a smooth wall so as to reduce the friction force between the wall and the wall of the hole to the maximum extent. To deep water-bearing zone region water content great, the well casing surface evenly arranges the hole and lets the water flow out, and its hole size and density all are greater than the hole size and the density in shallow tunnel country rock plastic fracture district, and simultaneously, the outside sets up the longitudinal rib and prevents to creep into the crooked of in-process well casing.
The method and the device for efficiently exploring and discharging the water in the mining mudstone water-containing roof roadway add the built-in filter screen to the inner wall of the sleeve pipe with the holes, prevent the softened argillaceous rock mass or rock debris from blocking an inner pipeline, and play a role in water permeation. The sleeve pipe both ends are equipped with supporting screw thread, realize the connection of drilling rod, and sleeve pipe one end is provided with unnecessary the stretching out simultaneously to do benefit to the sleeve pipe butt joint and avoid argillaceous rock mass or detritus to get into the screw thread and hinder the connection.
The invention has the beneficial effects that:
the efficient water detecting and discharging method and the device divide the roadway roof into three types aiming at the characteristics of different layer strata of the roadway roof, and the three types of subareas adopt different forms of sleeves, so that the high efficiency and the continuity of water detecting and discharging can be realized.
The outside of the sleeve of the shallow tunnel surrounding rock plastic fracture area is provided with a longitudinal rib to prevent the bending in the drilling process, and meanwhile, the longitudinal rib is provided with a round rib to prevent the extrusion deformation of the sleeve under huge plastic deformation pressure. The outer portion of the sleeve on the middle stable rock stratum region is provided with the longitudinal ribs to prevent the sleeve from being bent in the deep hole drilling process, the surface of the sleeve is not provided with holes and is a smooth pipe wall, the structure is relatively simple, and cost can be saved. The hole is evenly arranged on the sleeve pipe surface on deep water-bearing layer district and lets the water flow out, and its hole size and density all are greater than the hole size and the density in shallow tunnel country rock plastic fracture district to it is waterproof to realize high-efficient. Meanwhile, the built-in filter screen is added on the inner wall of the sleeve with the holes, so that softened argillaceous rocks or rock debris are prevented from blocking an inner pipeline, and a water permeable effect is achieved.
Drawings
A more complete appreciation of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein the accompanying drawings are included to provide a further understanding of the invention and form a part of this specification, and the illustrated embodiments and descriptions thereof are intended to illustrate and not limit the invention.
Fig. 1 is a schematic illustration of a roadway roof strata section.
Fig. 2 is a structural schematic diagram of a casing of a plastic fracture area of surrounding rock of a shallow roadway.
FIG. 3 is a schematic illustration of a casing configuration for a stable formation zone in the middle.
Figure 4 is a schematic view of a deep aquifer zone casing configuration.
Fig. 5 is a schematic view of a built-in screen structure added on the inner wall of the casing.
Fig. 6 is a schematic structural diagram of the cross section of a casing of a plastic fracture area of surrounding rock of a shallow roadway.
Detailed Description
The embodiment of the invention is explained by referring to fig. 1, 2, 3, 4, 5 and 6, and the method and the device for efficiently exploring and releasing water in a mining mudstone watery roof roadway divide a roadway roof into a shallow roadway surrounding rock plastic fracture area 3, a middle stable rock area 2 and a deep watery layer area 1, the three areas adopt different forms of casings, when a water exploration and releasing drill hole is drilled, the angle of the drill hole 4 is consistent with the maximum depth direction 5 of the shallow roadway surrounding rock plastic fracture area 3, the maximum fracture depth direction 5 of the plastic area is obtained by theoretical calculation through mining stress test, the best water releasing effect is achieved, and the watery surrounding rock watery water of the roadway shallow plastic fracture is prevented.
Use the deep sleeve pipe in deep water-bearing stratum region 1, sleeve pipe 14 one end is connected with drill bit 16, the other end is provided with internal thread 12 and has unnecessary 11 of stretching out, conveniently connect other sleeve pipes, sleeve pipe 14 surface evenly arranges hole 15 and lets the water flow out, hole 15 size and density all are greater than the hole 10 size and the density of shallow portion tunnel country rock plastic fracture district 3, and the inner wall adds built-in filter screen 17, prevent that the muddy rock mass or the detritus after softening from blockking up the internal pipeline, play permeable effect simultaneously again, and simultaneously, the outside sets up longitudinal rib 9 and prevents to creep into the in-process sleeve pipe bending.
In the middle stable rock stratum area 2, an inner sleeve is used, one end of the sleeve 13 with the external thread 6 is connected with the internal thread 12 of the sleeve 14 in the deep water-bearing stratum area 1, the other end is also provided with the internal thread 12 and has an excessive extension 11, and the longitudinal rib 9 is arranged outside the sleeve 13 to prevent the sleeve from bending in the deep hole drilling process.
Use shallow sleeve pipe in shallow tunnel country rock plastic fracture district 3, the one end that has external screw thread 6 with sleeve pipe 8 is connected with the internal thread 12 of sleeve pipe 13 in the stable rock area district 2 in middle part, the other end also is provided with internal thread 12 and has unnecessary 11 of stretching out, conveniently connect unnecessary sleeve pipe, sleeve pipe 8 outside sets up vertical rib 9 and prevents to creep into the in-process crooked, be equipped with round rib 7 simultaneously and prevent to its extrusion deformation under huge plastic deformation pressure, evenly arrange the easy water outflow of hole 10 on sleeve pipe 8 surface simultaneously, the internal wall adds built-in filter screen 17 simultaneously, prevent that the muddy rock mass or the detritus after the softening from blockking up inside pipeline, play the effect of permeating water simultaneously again.
As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications are possible without substantially departing from the spirit and scope of the invention. Therefore, such modifications are also all included in the scope of protection of the present invention.
Claims (1)
1. A mining mudstone watery roof roadway efficient water exploration and drainage method is characterized in that a roadway roof is divided into a shallow roadway surrounding rock plastic fracture area, a middle stable rock area and a deep watery layer area, different forms of sleeves are adopted in the three areas, when a water exploration and drainage drill hole is drilled, the drilling angle is consistent with the maximum depth direction of the shallow roadway surrounding rock plastic fracture area, the maximum depth direction of the shallow roadway surrounding rock plastic fracture area is obtained through theoretical calculation through mining stress test, and therefore the best water drainage effect is achieved and water accumulation of the shallow roadway surrounding rock plastic fracture area is prevented;
the deep sleeve is used in a deep water-bearing zone, one end of the deep sleeve is connected with a drill bit, the other end of the deep sleeve is provided with an internal thread and is provided with a surplus extension, other sleeves are convenient to connect, holes are uniformly distributed on the surface of the deep sleeve to allow water to flow out, the size and the density of the holes are larger than those of the holes on the shallow sleeve in a shallow tunnel surrounding rock plastic fracture zone, a built-in filter screen is added on the inner wall of the deep sleeve to prevent softened argillaceous rocks or rock debris from blocking an inner pipeline, and meanwhile, a water permeable effect is achieved, and meanwhile, longitudinal ribs are arranged outside the deep sleeve to prevent the deep sleeve from;
the method comprises the following steps that a middle sleeve is used in a middle stable rock stratum region, one end of the middle sleeve with an external thread is connected with an internal thread of a deep sleeve in a deep water-bearing stratum region, the other end of the middle sleeve is also provided with an internal thread and is extended unnecessarily, and a longitudinal rib is arranged outside the middle sleeve to prevent the middle sleeve from being bent in the deep hole drilling process;
use shallow portion sleeve pipe in shallow portion tunnel country rock plastic fracture district, the one end that has the external screw thread with shallow portion sheathed tube is connected with the sheathed tube internal thread in middle part in the stable rock area region in middle part, the other end also is provided with the internal thread and has unnecessary the stretching out, conveniently connect unnecessary sleeve pipe, shallow portion sleeve pipe outside sets up vertical rib and prevents to creep into the in-process bending, be equipped with the round rib simultaneously and prevent to its extrusion deformation under huge plastic deformation pressure, evenly arrange the easy water outflow of hole at shallow portion sleeve pipe surface simultaneously, the internal wall adds built-in filter screen simultaneously, prevent that muddy rock mass or detritus after the softening from blockking up the inside pipeline, play permeable effect simultaneously again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810656978.1A CN108843385B (en) | 2018-06-25 | 2018-06-25 | Method and device for efficiently exploring and draining water in mining mudstone watery roof roadway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810656978.1A CN108843385B (en) | 2018-06-25 | 2018-06-25 | Method and device for efficiently exploring and draining water in mining mudstone watery roof roadway |
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| CN108843385A CN108843385A (en) | 2018-11-20 |
| CN108843385B true CN108843385B (en) | 2020-04-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109488370B (en) * | 2018-11-26 | 2020-11-10 | 淮南矿业(集团)有限责任公司 | Underground limestone water exploration and drainage drilling construction method |
| CN110685744B (en) * | 2019-11-18 | 2021-11-09 | 内蒙古上海庙矿业有限责任公司 | Arrangement mode of water detection and drainage hole series |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2635892Y (en) * | 2003-08-21 | 2004-08-25 | 王效勤 | Lengthened water leakage drill without core taking |
| CN202883007U (en) * | 2012-04-17 | 2013-04-17 | 安徽理工大学 | Hole and fissure water drainage device |
| CN202578782U (en) * | 2012-05-08 | 2012-12-05 | 中铁隧道集团有限公司 | Downcast pipe used for rich water powder fine sand layer |
| CN104481587B (en) * | 2014-11-10 | 2018-09-14 | 西安科技大学 | The comprehensive coal working face top plate sandstone fissure water of putting of large mining depth, large span visits anti-method |
| CN104863629B (en) * | 2015-06-11 | 2017-03-01 | 中国矿业大学 | A kind of method taking out absciss layer gas and draining slip casting under overlying strata using combined drilling and counterboring |
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