CN104060964A - Pit grouting and water blocking method for protecting groundwater environment - Google Patents
Pit grouting and water blocking method for protecting groundwater environment Download PDFInfo
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- CN104060964A CN104060964A CN201410249448.7A CN201410249448A CN104060964A CN 104060964 A CN104060964 A CN 104060964A CN 201410249448 A CN201410249448 A CN 201410249448A CN 104060964 A CN104060964 A CN 104060964A
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Abstract
The invention provides a pit grouting and water blocking method used for protecting a groundwater environment. The pit grouting and water blocking method comprises the following steps: boring a diversion hole in the pit crack at the water flowing position; boring grouting holes on two sides of a water flowing band of the crack; mounting a grouting pipe in each grouting hole; filling the gap between the grouting pipes and the grouting holes with an anchoring agent; mounting a grout stop plug at the top end opening of the grouting pipe; connecting the grout stop plug and a grouting pump through a pipeline for grouting. The grouting method provided by the invention can make the rock formation has relatively high strength, closeness, and water tightness; meanwhile, a water insulation protection ring is formed at the pit crack, the groundwater is prevented from flowing outwards, the pressure from the outside water onto the pit structure is reduced, the groundwater can find a channel outside the adjacent rock to build a new balance, the ground water level is restored and can be maintained for a long time, and the groundwater environment is excellently protected.
Description
Technical field
The invention belongs to Coal Mining Technology field, relate in particular to a kind of mine grouting water blocking method for the protection of groundwater environment.
Background technology
The underground mine forming in process of coal mining is owing to adopting heavy-duty machinery equalization, or because geological movement has caused crack interlaced, that be communicated with, and there is large area thigh shape water burst along crack, water burst from the vault of mine dump along crack and under, worsen construction environment, staff has been brought to serious adverse effect with machinery.
Grouting for water blocking is that cement general or chemical pulp are pressed in formation downhole space, crack or tunnel by pipeline, makes its diffusion, solidifies and harden, thereby make rock stratum have higher intensity, density and impermeability; Form water resisting protection circle simultaneously at mine crack place, prevent that underground water from leaking and alleviating mine structure external water pressure, finally make underground water outside country rock, seek path and set up new gentle weighing apparatus, make groundwater table be recovered and be kept for a long time.Blocking the effect of nourishment source and strengthening stratum so grouting for water blocking reaches shutoff simultaneously, is one of important means of mine water management evil.But current many employings are first poured into inert material (as sand, slag, gravel, sawdust etc.) filling and are crossed aquaporin, dwindle the cross-section of river, increase slurry stream dynamic resistance, reduce running pulp, then pour into fast setting cement one water glass slurries, then with the further shutoff of the higher chemical pulp of intensity.Existing grouting water blocking method not only efficiency is low, and chemical sizwe polluted underground water, thereby has seriously destroyed groundwater environment.
Summary of the invention
The present invention will solve above-mentioned deficiency exactly, and a kind of mine grouting water blocking method for the protection of groundwater environment is provided.
In order to reach above-mentioned effect, the invention provides a kind of mine grouting water blocking method for the protection of groundwater environment, comprise the steps:
(1) bore priming hole at water burst place, mine crack, by the water carrying-off of gushing out, and water burst place soft argillaceous cave-sedimental fillings is around pushed away away;
(2) at the each injected hole that bores two row's blossom types in the both sides of crack water burst band;
(3) in the injected hole having bored in (2), Grouting Pipe is installed, the top of described Grouting Pipe is exposed injected hole outside and is not less than 30 centimetres;
(4) fill with Anchor Agent in the gap between Grouting Pipe and injected hole;
(5) in the top ports of Grouting Pipe, stop grouting plug is installed, after by pipeline, stop grouting plug being connected with grouting pump, in Grouting Pipe, is carried out slip casting by the grouting pressure of 0.5-2MPa.
Further, in described step (2), injected hole is to hole every hole with air drill compartment of terrain, and the boring order of injected hole is first from the bottom of mine and the angle of both sides, then carries out in order to top, finally in bottom.
Further, in described step (2), the distance between adjacent injected hole is 1-1.5 rice.
Further, the Grouting Pipe in described step (3) is a steel pipe, and the front end of described steel pipe is outside taper, rear end, to fix one deck reinforcing rib; On the middle part tube wall of described steel pipe, be plum blossom-shaped and offer decompression hole.
Further, the slip casting in described step (5) is to bore hole note one hole, after a hole slip casting is complete, bores another hole again.
The method of grouting for water blocking of the present invention is first should be according to finding position, crack accurately to bottom from abutment wall, arch, then bores priming hole at water burst place, crack, by water carrying-off, and water burst place soft argillaceous cave-sedimental fillings is around pushed away away; Then centered by the water burst band of crack, arrange boring, in water burst band both sides, each point two row is blossom type layout, be drilled to a hole Grouting Pipe is installed immediately, Grouting Pipe protruded length is generally not less than 30cm, to connect aperture valve and grouting pipeline, crack Anchor Agent shutoff outside Grouting Pipe and injected hole section, the Grouting Pipe mouth of pipe arranges stop grouting plug, connect and adopt segmenting slip casting by pipeline grouting pump, push ahead as a slip casting circulation using every crack water burst band, from two abutment walls toward the slip casting of vault order, and then bottom plate hole slip casting.
Slurries injection rate when slip casting is calculated according to diffusion radius and lithofraction gap rate, and its formula is:
Q＝r2AHnβ
Q-slurries injection rate in formula, m3;
R-grout spreading range, m;
N-crack rate, %
H-slip casting section is high, m;
β-slurries are effective volumetric efficiency in crack, and 0.9～0.95;
A-slurry consumption coefficient, generally gets 1.2～1.3.
Slip casting ending standard is generally with two index expressions; The one, final midge amount, i.e. slip casting note is to last permission midge amount; Another is the duration of (when final pressure) while reaching design pressure.Theoretically, final midge amount is the smaller the better, and optimal situation is note to midge not completely, but be difficult to accomplish, reach design final pressure therefore ending standard is grouting pressure, be generally and noted 1.6～2.5 times of aquifer hydraulic pressure, midge amount is less than 80L/min, and the time is no less than 30min.
So grouting method of the present invention makes rock stratum have higher intensity, density and impermeability; Form water resisting protection circle at mine crack place simultaneously; prevent that underground water from leaking and alleviating mine structure external water pressure; finally make underground water outside country rock, seek path and set up new gentle weighing apparatus, making groundwater table be recovered and be kept for a long time, having protected well groundwater environment.
Detailed description of the invention
Embodiment mono-:
For the protection of a mine grouting water blocking method for groundwater environment, comprise the steps:
(1) bore priming hole at water burst place, mine crack, by the water carrying-off of gushing out, and water burst place soft argillaceous cave-sedimental fillings is around pushed away away;
(2) in the both sides of crack water burst band, form two with air drill compartment of terrain every hole drilling and arrange injected holes, injected hole becomes blossom type in water burst band both sides; Distance between adjacent injected hole is 1 meter; The boring order of injected hole is first from the bottom of mine and the angle of both sides, then carries out in order to top, finally in bottom.
(3) in the injected hole having bored in (2), Grouting Pipe is installed, it is 30 centimetres that injected hole outside is exposed at the top of described Grouting Pipe; Described Grouting Pipe is a steel pipe, and the front end of described steel pipe is outside taper, rear end, to fix one deck reinforcing rib; On the middle part tube wall of described steel pipe, be plum blossom-shaped and offer decompression hole.
(4) fill with Anchor Agent in the gap between Grouting Pipe and injected hole;
(5) in the top ports of Grouting Pipe, stop grouting plug is installed, after by pipeline, stop grouting plug being connected with grouting pump, in Grouting Pipe, is carried out slip casting by the grouting pressure of 0.5MPa; Bore hole note one hole, after a hole slip casting is complete, bore again another hole.
Embodiment bis-:
For the protection of a mine grouting water blocking method for groundwater environment, comprise the steps:
(1) bore priming hole at water burst place, mine crack, by the water carrying-off of gushing out, and water burst place soft argillaceous cave-sedimental fillings is around pushed away away;
(2) in the both sides of crack water burst band, form two with air drill compartment of terrain every hole drilling and arrange injected holes, injected hole becomes blossom type in water burst band both sides; Distance between adjacent injected hole is 1.5 meters; The boring order of injected hole is first from the bottom of mine and the angle of both sides, then carries out in order to top, finally in bottom.
(3) in the injected hole having bored in (2), Grouting Pipe is installed, it is 40 centimetres that injected hole outside is exposed at the top of described Grouting Pipe; Described Grouting Pipe is a steel pipe, and the front end of described steel pipe is outside taper, rear end, to fix one deck reinforcing rib; On the middle part tube wall of described steel pipe, be plum blossom-shaped and offer decompression hole.
(4) fill with Anchor Agent in the gap between Grouting Pipe and injected hole;
(5) in the top ports of Grouting Pipe, stop grouting plug is installed, after by pipeline, stop grouting plug being connected with grouting pump, in Grouting Pipe, is carried out slip casting by the grouting pressure of 2MPa; Bore hole note one hole, after a hole slip casting is complete, bore again another hole.
Above embodiment is not limited only to protection scope of the present invention, all modify based on basic thought of the present invention or change all belong to protection scope of the present invention.
Claims (5)
1. for the protection of a mine grouting water blocking method for groundwater environment, it is characterized in that: comprise the steps:
(1) bore priming hole at water burst place, mine crack, by the water carrying-off of gushing out, and water burst place soft argillaceous cave-sedimental fillings is around pushed away away;
(2) at the each injected hole that bores two row's blossom types in the both sides of crack water burst band;
(3) in the injected hole having bored in (2), Grouting Pipe is installed, the top of described Grouting Pipe is exposed injected hole outside and is not less than 30 centimetres;
(4) fill with Anchor Agent in the gap between Grouting Pipe and injected hole;
(5) in the top ports of Grouting Pipe, stop grouting plug is installed, after by pipeline, stop grouting plug being connected with grouting pump, in Grouting Pipe, is carried out slip casting by the grouting pressure of 0.5-2MPa.
2. method according to claim 1, it is characterized in that: in described step (2), injected hole is to hole every hole with air drill compartment of terrain, the boring order of injected hole is first from the bottom of mine and the angle of both sides, then carries out in order to top, finally in bottom.
3. method according to claim 1, is characterized in that: the distance in described step (2) between adjacent injected hole is 1-1.5 rice.
4. method according to claim 1, is characterized in that: the Grouting Pipe in described step (3) is a steel pipe, and the front end of described steel pipe is outside taper, rear end, to fix one deck reinforcing rib; On the middle part tube wall of described steel pipe, be plum blossom-shaped and offer decompression hole.
5. method according to claim 1, is characterized in that: the slip casting in described step (5) is to bore hole note one hole, after a hole slip casting is complete, bores another hole again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410249448.7A CN104060964A (en) | 2014-05-30 | 2014-05-30 | Pit grouting and water blocking method for protecting groundwater environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410249448.7A CN104060964A (en) | 2014-05-30 | 2014-05-30 | Pit grouting and water blocking method for protecting groundwater environment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227464A (en) * | 2020-09-21 | 2021-01-15 | 太原理工大学 | Geothermal well shaft heat insulation structure and construction method thereof |
| CN113356830A (en) * | 2021-05-14 | 2021-09-07 | 华北科技学院(中国煤矿安全技术培训中心) | Shallow surface layer ecological water protection method based on mining space key layer lag effect |
| CN114458234A (en) * | 2022-03-29 | 2022-05-10 | 嵩县金牛有限责任公司 | Water plugging construction method for underground aquifer rock mass tunneling |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2249699C2 (en) * | 2002-10-10 | 2005-04-10 | ОАО "Кузбасский научно-исследовательский институт шахтного строительства (ОАО "Кузниишахтострой") | Method for driving draining mines in broken and watered massif |
| CN102536269A (en) * | 2010-12-15 | 2012-07-04 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Underground grouting and water-plugging process |
| CN202325541U (en) * | 2011-11-01 | 2012-07-11 | 北京市政建设集团有限责任公司 | Tunnel structure with improved structure |
| CN103410564A (en) * | 2013-08-29 | 2013-11-27 | 中南大学 | Tunnel water gushing treatment structure and construction method thereof |
-
2014
- 2014-05-30 CN CN201410249448.7A patent/CN104060964A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2249699C2 (en) * | 2002-10-10 | 2005-04-10 | ОАО "Кузбасский научно-исследовательский институт шахтного строительства (ОАО "Кузниишахтострой") | Method for driving draining mines in broken and watered massif |
| CN102536269A (en) * | 2010-12-15 | 2012-07-04 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Underground grouting and water-plugging process |
| CN202325541U (en) * | 2011-11-01 | 2012-07-11 | 北京市政建设集团有限责任公司 | Tunnel structure with improved structure |
| CN103410564A (en) * | 2013-08-29 | 2013-11-27 | 中南大学 | Tunnel water gushing treatment structure and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 钱兴贵，等: ""隧道工程注浆防水施工技术"", 《交通建设与管理》, no. 10, 23 May 2014 (2014-05-23), pages 96 - 98 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227464A (en) * | 2020-09-21 | 2021-01-15 | 太原理工大学 | Geothermal well shaft heat insulation structure and construction method thereof |
| CN113356830A (en) * | 2021-05-14 | 2021-09-07 | 华北科技学院(中国煤矿安全技术培训中心) | Shallow surface layer ecological water protection method based on mining space key layer lag effect |
| CN114458234A (en) * | 2022-03-29 | 2022-05-10 | 嵩县金牛有限责任公司 | Water plugging construction method for underground aquifer rock mass tunneling |
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Application publication date: 20140924 |