CN102913287B - Safe monitoring method for mine underground reservoir - Google Patents
Safe monitoring method for mine underground reservoir Download PDFInfo
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- CN102913287B CN102913287B CN 201210473327 CN201210473327A CN102913287B CN 102913287 B CN102913287 B CN 102913287B CN 201210473327 CN201210473327 CN 201210473327 CN 201210473327 A CN201210473327 A CN 201210473327A CN 102913287 B CN102913287 B CN 102913287B
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- compressive strength
- rock mass
- permeability parameters
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000035699 permeability Effects 0.000 claims abstract description 43
- 239000011435 rock Substances 0.000 claims abstract description 29
- 239000003673 groundwater Substances 0.000 claims description 47
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000006835 compression Effects 0.000 abstract 5
- 238000007906 compression Methods 0.000 abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 239000003245 coal Substances 0.000 description 8
- 238000005065 mining Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Abstract
The invention discloses a safe monitoring method for a mine underground reservoir, comprising the following steps of: (1), acquiring the compression strength and the permeability parameter of mine underground reservoir rock mass; (2) selecting the position where the compression strength is less than a compression strength set value as a first safe monitoring point, and selecting the position where the permeability parameter is greater than a permeability parameter set value as a second safe monitoring point; (3), setting a pressure sensor for detecting the rock mass stress and a permeability sensor for detecting the permeability parameter on the first safe monitoring point and the second safe monitoring point respectively; and (4), giving out an alarm when the permeability parameter of the detected rock mass reaches a permeability parameter alarm value or the rock mass stress reaches the compression strength set value. The sensors are arranged on the rock mass of the mine underground reservoir, the dynamic real-time monitoring of the compression resistance and the permeability resistance of the underground reservoir can be realized, the potential safety hazard can be eliminated, and the inrush accident can be effectively avoided, so that the safe and stable running of the mine underground reservoir can be guaranteed.
Description
Technical field
The present invention relates to a kind of method for safety monitoring, relate in particular to the method for safety monitoring in a kind of mine groundwater storehouse.
Background technology
Western China is composed and is being deposited the abundant in coal resource, but water resources shortage, shortage of water resources has constituted serious threat to the improvement of Western Economic and people's lives.Can produce mine water in the progress of coal mining, coal of average every exploitation need discharge 2 tons of waste water, but mine groundwater is still to be pumped to ground at present, because the factors such as seasonality that water resource is utilized, cause the significant wastage of water resource, local supply with unbalance of aggravation, simultaneously, at present the processing method of mine water suspension and water quality is still mostly and is emitted on ground at mine water by the down-hole and handles, also cause secondary pollution easily.Such technology makes the further deterioration of mining area water and perimeter zone short water supply, has seriously restricted the ordinary production in mining area, is unfavorable for the coordinated development of resource and environment.
In order to address the above problem; the mining area can be set up groundwater reservoir usually and store mine groundwater; the mine groundwater storehouse can form in progress of coal mining; and need not in the progress of coal mining water is extracted out; reduce the coal mining energy consumption, realize water-retaining production, the mine groundwater storehouse has also solved mine water resource and has supplied with seasonal unbalance problem; avoid loss and the secondary pollution of mine groundwater, help the recovery of ecological environment.But when groundwater reservoir stores excessive underground water, cause water pressure to increase, when hydraulic pressure surpasses blocking water during ability to bear of groundwater reservoir rock mass, make rock mass produce the water guide crack, cause taking place the gushing water security incident, therefore be necessary that security monitoring is carried out in the mine groundwater storehouse comes rational allocation mine groundwater resource in fact.
Summary of the invention
At the problem that prior art exists, the purpose of this invention is to provide the method for safety monitoring in a kind of mine groundwater storehouse, it can monitor the operation in mine groundwater storehouse in real time, reduces potential safety hazard.
Technical purpose of the present invention is achieved through the following technical solutions:
1, this method of method for safety monitoring in a kind of mine groundwater storehouse comprises the steps:
Step is 1.: compressive strength and the permeability parameters of gathering described mine groundwater storehouse rock mass;
Step is 2.: select compressive strength less than the position of compressive strength setting value as first safety monitoring point, select described permeability parameters greater than the position of permeability parameters setting value as second safety monitoring point;
Step is 3.: the seepage flow sensor that is provided for measuring the pressure sensor of rock mass stress and is used for measuring permeability parameters at the described first safety monitoring point and the second safety monitoring point;
Step is 4.: send warning when the permeability parameters of monitoring rock mass reaches the permeability parameters alarming value, send warning when described rock mass stress reaches the compressive strength setting value when monitoring.
Further, it is characterized in that, select the maximum value in the compressive strength of gathering as maximum compressive strength, the product of described maximum compressive strength and safety factor is set value as described compressive strength.
Further, described safety factor is 0.6-0.8.
Further, described safety factor is 0.6.
Further, described permeability parameters comprises transmission coefficient or specific capacity.
Further, described permeability parameters setting value comprises transmission coefficient setting value or specific capacity setting value, and described transmission coefficient setting value is 0.01, and described specific capacity setting value is 0.005Ls
-1m
-1
Further, step 1. in, utilize geophysical exploration or prospecting by boring mode to gather described compressive strength and permeability parameters.
Further, step 4. in, described permeability parameters alarming value comprises transmission coefficient alarming value or specific capacity alarming value.
Further, described transmission coefficient alarming value is 1, and described specific capacity alarming value is 0.1Ls
-1m
-1
The present invention arranges sensor by the rock mass in the mine groundwater storehouse, realized compressive property and the barrier performance of groundwater reservoir are carried out dynamic real-time monitor, discharge potential safety hazard, prevent the gushing water accident effectively, thereby ensure the safe and stable operation in mine groundwater storehouse.
Description of drawings
Fig. 1 is the flow chart of the method for safety monitoring in a kind of preferred mine groundwater of the present invention storehouse.
The specific embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present invention is described in detail.
As shown in Figure 1, the invention provides the method for safety monitoring in a kind of mine groundwater storehouse, this method comprises the steps:
Step is 1.: compressive strength and the permeability parameters of gathering described mine groundwater storehouse rock mass, the present invention can carry out the gamut exploration in the mine groundwater storehouse, also can preferably concentrate on the groundwater reservoir section that closes on the tunnel explores, the present invention can utilize geophysical exploration or prospecting by boring mode to gather described compressive strength and permeability parameters, preferably, carry out the gamut exploration by this reservoir of geophysical exploration team, assist again and with prospecting by boring the groundwater reservoir section that closes on the tunnel is concentrated exploration.Permeability parameters of the present invention preferably includes transmission coefficient or specific capacity, certainly, selecting parameters such as exploration compressive strength, transmission coefficient and specific capacity is a preferred embodiment of the present invention, the present invention can also select other exploration parameter according to the actual geological conditions of reservoir, repeats no more herein.
Step is 2.: select compressive strength less than the position of described compressive strength setting value as first safety monitoring point, preferably, the present invention select gather maximum value in the compressive strength as maximum compressive strength, the product of described maximum compressive strength and safety factor is set value as described compressive strength, for the rock mass that guarantees the mine groundwater storehouse can bear the pressure that mine water produces, safety factor of the present invention is preferably 0.6-0.8, and more preferably, described safety factor is 0.6.Certainly, the selection of above-mentioned safety factor is a preferred embodiment of the present invention, the safety factor that the present invention can also be fit to according to the environmental selection in actual mine groundwater storehouse.
The present invention select described permeability parameters greater than the position of permeability parameters setting value as second safety monitoring point, permeability parameters of the present invention comprises transmission coefficient or specific capacity, correspondingly, described permeability parameters setting value comprises transmission coefficient setting value or specific capacity setting value, as a preferred embodiment of the present invention, described transmission coefficient setting value is 0.01, and described specific capacity setting value is 0.005Ls
-1m
-1In order to improve the security monitoring scope of reservoir, the present invention also can select the value less than 0.01 to set value as transmission coefficient, perhaps selects less than 0.005Ls
-1m
-1Value set value as specific capacity, it is 0.008 that described transmission coefficient setting value for example is set, described specific capacity setting value is 0.004Ls
-1m
-1
Step is 3.: the seepage flow sensor that is provided for measuring the rock mass stress pressure sensor and is used for measuring permeability parameters at the described first safety monitoring point and the second safety monitoring point, described pressure sensor and seepage flow sensor are a preferred embodiment of the present invention, the present invention can also arrange the sensor that other is used for measuring rock mass stress and permeability parameters, for example displacement transducer, flow transmitter, Fibre Optical Sensor at the first safety monitoring point and second safety monitoring point.
Step is 4.: send warning when the permeability parameters of seepage flow sensor monitoring rock mass reaches the permeability parameters alarming value, send warning when described compressive strength sets value when pressure sensor monitoring reaches to described rock mass stress.The permeability parameters alarming value of present embodiment preferably includes transmission coefficient alarming value or specific capacity alarming value, and described transmission coefficient alarming value is 1, and described specific capacity alarming value is 0.1Ls
-1m
-1, certainly, in order to improve the safety of reservoir, the present invention can also suitably reduce transmission coefficient alarming value or specific capacity alarming value, and it is 0.8 that described transmission coefficient alarming value for example is set, and described specific capacity alarming value is 0.08Ls
-1m
-1
Be that the method for safety monitoring in the mine groundwater of the present invention of embodiment storehouse is further described with Da Liu tower ore deposit, group of Shenhua Shen Dong mining area groundwater reservoir below, wherein, the long 1500m of 2-2 coal seam, Da Liu tower ore deposit six panel reservoirs, wide 600m, on cover basement rock caving zone height 10m, estimation groundwater reservoir spatial dimension is 9 * 10
6m
3
Step is 1.: utilize geophysical exploration that the gamut exploration is carried out in the mine groundwater storehouse, assist and with prospecting by boring the groundwater reservoir section that closes on the tunnel is explored, compressive strength and the permeability parameters of described mine groundwater storehouse rock mass gathered in exploration, and described permeability parameters comprises transmission coefficient or specific capacity.
Step is 2.: the maximum compressive strength that records this reservoir through geophysical exploration is 4Mpa, preferably choose safety factor 0.6, the product of described maximum compressive strength and safety factor is set value as described compressive strength, namely the compressive strength of this reservoir setting value is 2.4Mpa, select compressive strength less than the position of 2.4Mpa as first safety monitoring point.Certainly, in order to improve the safety of reservoir monitoring, present embodiment also can be selected higher safety factor 0.8, so, maximum compressive strength 4Mpa be multiply by safety factor 0.8 just can wait until described compressive strength setting value 3.2Mpa, namely present embodiment also can be with compressive strength less than the position of 3.2Mpa as first safety monitoring point.
Present embodiment also select transmission coefficient greater than 0.01 or specific capacity greater than 0.005Ls
-1m
-1The position as second safety monitoring point.
Step is 3.: through step screening 2., in the six panel reservoirs of 2-2 coal seam, Da Liu tower ore deposit, chosen 20 safety monitoring points that meet the demands, be provided for measuring the pressure sensor of rock mass stress and be used for measuring the seepage flow sensor of permeability parameters at these 20 safety monitoring points.
Step is 4.: described sensor carries out real-time dynamic monitoring to described safety monitoring point: when the transmission coefficient of monitoring rock mass reaches 1, perhaps specific capacity reaches 0.1Ls
-1m
-1, send alarm signal when perhaps rock mass stress reaches 2.4Mpa.
To sum up, the present invention is in the prospecting to the mine groundwater storehouse, understand on the isoparametric basis of rock mass structure performance, in the rock mass structure weak location sensor is set, by sensor transmissions dynamic monitoring is carried out in the mine groundwater storehouse, grasped the operating condition of groundwater reservoir in real time, eliminate safe hidden trouble, avoid taking place the gushing water accident, for the safe operation that ensures the mine groundwater storehouse provides scientific and reasonable method.
Above-described embodiment is only for the usefulness that the present invention is described; and be not to be limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical solutions also should belong to category of the present invention, and scope of patent protection of the present invention should be limited by each claim.
Claims (9)
1. the method for safety monitoring in a mine groundwater storehouse is characterized in that, this method comprises the steps:
Step is 1.: compressive strength and the permeability parameters of gathering described mine groundwater storehouse rock mass;
Step is 2.: select compressive strength less than the position of compressive strength setting value as first safety monitoring point, select described permeability parameters greater than the position of permeability parameters setting value as second safety monitoring point;
Step is 3.: the seepage flow sensor that is provided for measuring the pressure sensor of rock mass stress and is used for measuring permeability parameters at the described first safety monitoring point and the second safety monitoring point;
Step is 4.: send warning when the permeability parameters of monitoring rock mass reaches the permeability parameters alarming value, send warning when described rock mass stress reaches the compressive strength setting value when monitoring.
2. the method for safety monitoring in mine groundwater according to claim 1 storehouse, it is characterized in that, select the maximum value in the compressive strength of gathering as maximum compressive strength, the product of described maximum compressive strength and safety factor is set value as described compressive strength.
3. the method for safety monitoring in mine groundwater according to claim 2 storehouse is characterized in that described safety factor is 0.6-0.8.
4. the method for safety monitoring in mine groundwater according to claim 3 storehouse is characterized in that described safety factor is 0.6.
5. the method for safety monitoring in mine groundwater according to claim 1 storehouse is characterized in that described permeability parameters comprises transmission coefficient or specific capacity.
6. the method for safety monitoring in mine groundwater according to claim 1 storehouse, it is characterized in that, described permeability parameters setting value comprises transmission coefficient setting value or specific capacity setting value, and described transmission coefficient setting value is 0.01, and described specific capacity setting value is 0.005Ls
-1m
-1
7. the method for safety monitoring in mine groundwater according to claim 1 storehouse is characterized in that, step 1. in, utilize geophysical exploration or prospecting by boring mode to gather described compressive strength and permeability parameters.
8. the method for safety monitoring in mine groundwater according to claim 1 storehouse is characterized in that, step 4. in, described permeability parameters alarming value comprises transmission coefficient alarming value or specific capacity alarming value.
9. the method for safety monitoring in mine groundwater according to claim 8 storehouse is characterized in that described transmission coefficient alarming value is 1, and described specific capacity alarming value is 0.1Ls
-1m
-1
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210473327 CN102913287B (en) | 2012-11-20 | 2012-11-20 | Safe monitoring method for mine underground reservoir |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210473327 CN102913287B (en) | 2012-11-20 | 2012-11-20 | Safe monitoring method for mine underground reservoir |
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| CN102913287A CN102913287A (en) | 2013-02-06 |
| CN102913287B true CN102913287B (en) | 2013-08-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104020505B (en) * | 2014-06-05 | 2016-05-25 | 中国神华能源股份有限公司 | A kind of alluvial monitoring method of coal mine underground reservoir |
| CN105930634A (en) * | 2016-04-06 | 2016-09-07 | 中国神华能源股份有限公司 | Mine water disaster early warning method |
| CN108195496B (en) * | 2017-11-29 | 2020-02-18 | 中国神华能源股份有限公司 | Measuring device and measuring method for measuring effective force |
| CN108663724B (en) * | 2018-06-08 | 2020-09-04 | 中国矿业大学 | A method for location selection of coal mine underground reservoir based on water resource transfer path |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103870A (en) * | 1986-04-17 | 1988-01-27 | 矿山开发中心研究所 | Method for blocking water leakage of tunnel, mine main roadway, channel and other underground gallery |
| CN101915122A (en) * | 2010-08-02 | 2010-12-15 | 中钢集团马鞍山矿山研究院有限公司 | Construction method of underground large water-flow mine emergency water sump |
| RU2413844C1 (en) * | 2009-11-06 | 2011-03-10 | Общество с ограниченной ответственностью (ООО) "Современные вихревые технологии" | Development device of underground reservoir in permafrost sedimentary rocks |
-
2012
- 2012-11-20 CN CN 201210473327 patent/CN102913287B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103870A (en) * | 1986-04-17 | 1988-01-27 | 矿山开发中心研究所 | Method for blocking water leakage of tunnel, mine main roadway, channel and other underground gallery |
| RU2413844C1 (en) * | 2009-11-06 | 2011-03-10 | Общество с ограниченной ответственностью (ООО) "Современные вихревые технологии" | Development device of underground reservoir in permafrost sedimentary rocks |
| CN101915122A (en) * | 2010-08-02 | 2010-12-15 | 中钢集团马鞍山矿山研究院有限公司 | Construction method of underground large water-flow mine emergency water sump |
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