CN111691887A - Method for identifying and treating water gushing direction of strip mine - Google Patents
Method for identifying and treating water gushing direction of strip mine Download PDFInfo
- Publication number
- CN111691887A CN111691887A CN202010533831.0A CN202010533831A CN111691887A CN 111691887 A CN111691887 A CN 111691887A CN 202010533831 A CN202010533831 A CN 202010533831A CN 111691887 A CN111691887 A CN 111691887A
- Authority
- CN
- China
- Prior art keywords
- water
- pit
- identifying
- well
- inrush
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
Abstract
The invention relates to a method for identifying and treating water burst direction of an open-pit mine, which comprises the following steps: s1, carrying out hydrogeological survey; s2, respectively collecting water samples in the rich water period and the dry water period in the region and carrying out cluster analysis based on water chemistry characteristics; s3, according to the deduced water inrush source range, S4, if hydrogeological parameters have no obvious difference, calculating the water inrush source mixing ratio by adopting a mixing model, and performing iterative calculation through data of a plurality of observation wells to judge the water inrush direction and determine the treatment range; s5, water pumping and draining treatment, a method for treating one side of a river in the water inrush direction of a mine pit in an anti-seepage way, and treatment of cut-off and drainage of the ground surface of the mine area. The invention has the advantages that: effectively combine local hydrogeology characteristic and groundwater seepage field characteristic to in time administer the side slope gushing water, prevent pit gushing water accident, improve pit safety level and production efficiency.
Description
Technical Field
The invention belongs to the technical field of mine water burst direction identification and treatment, and particularly relates to a method for identifying and treating water burst direction of strip mine.
Background
China is a country with more iron ores mined in an open-pit mode, and more than 90% of self-produced iron ores are mined in the open pit. Generally, the geological structure and hydrogeological conditions of ore deposits and rock strata nearby the ore deposits are extremely complex, so that a large number of end slope slopes and underground roadways formed by mining have water damage hidden dangers, and water burst accidents of mines occur and often cause serious damage consequences. Most mines in China belong to the type with complex hydrogeological conditions, and with the continuous exploitation of mine resources, more and more mines enter a deep mining area, so that the hydrogeological conditions are more complex. Mine water damage can directly cause mine safety accidents, and also can often induce serious secondary disasters, accidents such as roadway collapse and the like are usually induced for mines mined by well engineering due to the water damage, and mine pit slope landslide disasters of different scales can be induced for mines mined by surface, so that serious threats are brought to mine safety production. Therefore, the research work of developing mine water disaster sources, disaster causing mechanisms, identification methods, prevention and treatment measures and the like has important practical significance for scientifically preventing mine water disasters, perfecting mine safety management accident management systems and reasonable emergency countermeasures and measures, effectively reducing mine safety accidents and improving production efficiency.
At present, the commonly used method for analyzing the source of the water inrush at home and abroad mainly comprises a geological and hydrogeological analysis method, a hydrochemical analysis method and a mathematical analysis method. The geological and hydrogeological analysis method is a basic method for distinguishing water sources and is often combined with other methods; the conventional water chemical analysis method is suitable for judging a single water source with larger water quality characteristic difference of an aquifer, the accuracy is insufficient, and the isotope tracing method has high accuracy but higher test cost; the most common method in the mathematical analysis method is cluster analysis, which is a traditional method for judging the water inrush source of a mine by researching multivariate statistical classification, but if the method is singly used for judging the water inrush source, the result may be deviated or distorted due to the complexity of hydrogeological conditions and the ambiguity of the method. And the traditional methods aim to identify the source of the water inrush water source in the drainage basin and are rarely used for judging the water inrush direction in a small range around the mine.
At present, common measures for treating water burst of mine side slopes include an earth surface dredging method, an underground dredging method, a grouting method and the like. The surface dredging method is mainly used in the pre-dredging stage, is only suitable for the condition of small excavation depth and is not suitable for mines in the later period of exploitation; the underground dredging method mainly comprises roadway dredging and underground drilling dredging, and the method is generally suitable for the conditions of less water burst in a mine pit or too large excavation depth, and has higher investment and operation cost; if the grouting method is applied to mines with large ore body burial depth and wide range, the required grouting holes are large in number, large in hole depth and expensive in treatment cost.
Disclosure of Invention
In order to solve the problems, the invention provides an economical method for identifying and treating the water burst direction of the strip mine in the later period of mining, which can effectively combine local hydrogeological characteristics and underground water seepage field characteristics to treat the water burst of the side slope in time, prevent the water burst accident of the pit and improve the safety level and the production efficiency of the pit.
The invention adopts the following technical scheme:
the invention discloses a method for identifying and treating the water inrush direction of a strip mine, which is characterized by comprising the following steps of: the method comprises the following steps:
step one, carrying out hydrogeological survey, and determining a hydrogeological survey area by using an ArcGIS hydrogeological analysis module;
step two, respectively collecting water samples in a rich water period and a dry water period in the region, carrying out cluster analysis based on water chemistry characteristics, and deducing the range of a water burst source;
selecting a plurality of observation wells within the influence radius according to the inferred water inrush source range to carry out a water pumping test, recording water level data of a dewatering well and the observation wells, calculating a permeability coefficient according to the water level data, and carrying out comparative analysis to infer the water inrush direction;
step four, if the hydrogeological parameters have no obvious difference, calculating the water inrush source mixing ratio by adopting a mixing model, and performing iterative calculation through data of a plurality of observation wells to judge the water inrush direction and define a control range;
fifthly, pumping water and dredging treatment, wherein two dewatering wells are arranged on the top of the slope on one side of the water burst direction of the mine pit, and a water pump is placed in each dewatering well for pumping water and is used for draining the fourth series of pore water and the bedrock fracture water;
step six, adopting a method for preventing seepage of a river on one side of the water gushing direction of the mine pit;
and seventhly, treating the cut-off and drainage water on the ground surface of the mining area, and arranging a cut-off ditch on the side slope in the water inrush direction for treatment.
Preferably, the hydrogeological survey in the first step comprises 1:50000 hydrogeological survey on the mining area, and the hydrogeological characteristics of the mining area are determined; and (3) finding out the structural characteristics and the fracture development rule of bedrock in the mining area, determining the possibly existing large water control structure, and identifying the water control fractures with different scales and the development characteristics of the water control fractures.
Preferably, in the second step, water samples in the rich water period and the dry water period are respectively collected, each water sample is filtered by placing a filter membrane on the needle tube in the sampling process and then collected into a sampling bottle, the sampling bottle is a 125ml high-density polyethylene bottle, the aperture of the used filter membrane is 0.45 mu m, the sampling bottle is flushed with filtered water for more than three times during sampling, and the bottle cap is screwed down and sealed by adopting a sealing membrane after the water sample in the sampling bottle is full.
Preferably, in the second step, water samples in the rich water period and the dry water period are respectively collected in the region, cluster analysis based on water chemistry characteristics is carried out, and Na is selected+、K+、Ca2+、Mg2+、Cl-、S04 2-、HC03 -、NO3 -、NO2 -The ions are used as water chemical characteristic components, a cluster analysis module in SPSS statistical software of IBM company is used for carrying out statistical calculation, and the source range of the water burst is preliminarily deduced.
Preferably, the dewatering well structure in the third step adopts a large-caliber diving complete well and a diving incomplete well with the diameter of 300mm, and the water level data of the observation well is measured by DIVER.
Preferably, in the third step, the permeability coefficient is calculated by adopting a fur-based formula according to the pumping test result, and if the calculated permeability coefficient is obviously greater than (more than 2 times) the calculation results of the other observation wells according to a certain observation well, the observation well can be judged to be positioned on the underground water migration channel, and the water inrush direction can be judged.
Preferably, in the fourth step, if the permeability coefficients calculated according to the observation wells have no obvious difference, selecting two observation wells with the closest calculated permeability coefficients, taking the mineralization degree as a calculation parameter, calculating the mixed volume ratio of the underground water according to the mixed model, dividing a connecting line of the two observation wells by the reciprocal of the volume ratio, wherein a dividing point is a new equivalent observation well point, and sequentially iterating until all the observation wells in the class are calculated, and a final connecting line of the equivalent observation well point and the water pumping well point is the water inrush direction.
Preferably, the water pumping and draining treatment in the fifth step comprises: two dewatering wells are arranged on the slope top in the direction of the largest water burst source of the pit, the well depth is 200m, the diameter is 315mm, and a water pump is arranged in each well for pumping water.
Preferably, the step six of performing the seepage-proofing treatment on the river around the pit comprises the following steps: the anti-seepage treatment of the river channel bottom adopts the method that the bentonite waterproof blanket is paved with the cement soil with 8 percent of cement content and 30cm of thickness, and the gabion with the thickness of 30cm is arranged at intervals of 30m for preventing the cement soil from deforming caused by thermal freezing and stretching.
Preferably, the arrangement of the intercepting drain in the seventh step is to arrange the intercepting drain on the side with the maximum water inflow amount of the mine pit, wherein the top width is 1.4m, the bottom width is 0.5m, and the depth is about 0.85m, and the length of the intercepting drain is determined according to the condition of the water inflow path of the mine pit and is equal to the equivalent diameter of the mine pit
And (4) doubling.
The invention has the beneficial effects that:
1) and preliminarily judging the source of the water inrush by utilizing early-stage hydrogeology investigation and cluster analysis based on water chemistry characteristics, and reducing the layout range of the observation well of the subsequent pumping test.
2) And adopting a pumping test, and judging the underground water migration path by analyzing water level data of the pumping well and the observation well and calculating and comparing according to the permeability coefficient of each observation well.
3) According to the full-chemical analysis result of each observation well water sample, the mixed volume ratio is calculated by adopting a mixed model iteration, so that the water burst direction is judged quickly and accurately, the control area range is determined, and the ambiguity of the cluster analysis is compensated.
4) The invention adopts the technical scheme that cement is laid on the bentonite waterproof blanket, and the gabions are arranged at intervals of 30m, so that the effect of preventing the deformation of the cement soil caused by the thermal freezing and stretching is achieved.
5) The method is characterized in that a catch drain and a drainage method are used for one side of the water inflow direction of the mine pit, a dewatering well is used for drainage treatment, the water inflow treatment of the side slope of the mine pit is completed, the monitoring of the water inflow point of the side slope deformation is enhanced, and the normal operation of the daily production of iron ore is further ensured.
Drawings
FIG. 1 is a flow chart of a method for identifying and treating water inrush directions of strip mines;
FIG. 2 is a schematic diagram of the identification of the source area of water gushing in a mining area;
FIG. 3 is a schematic view of the dewatering well;
FIG. 4 is a view of the bentonite waterproof blanket laying;
FIG. 5 is a sectional view of the catch basin;
FIG. 6 is a schematic view of the catch basin.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1-6, the method for identifying and treating the water inrush direction of the strip mine comprises the following steps:
step one, carrying out hydrogeological survey
The method comprises the steps of utilizing a Digital Elevation Model (DEM) provided by a geographic data cloud of a Chinese academy of sciences, extracting information of a river network, a sub-basin boundary, a watershed and a related basin landform by using an ArcGIS hydrological analysis module, determining a hydrogeological investigation area, preliminarily describing a runoff process of underground water and surface water of the research area, and determining hydrogeological characteristics of the mining area.
Step two, sampling and cluster analysis based on water chemistry characteristics
Respectively collecting water samples in a rich water period and a dry water period in an area, carrying out cluster analysis based on water chemistry characteristics, and deducing the range of a water inrush source;
1) according to the determined drainage basin landform information, selecting hydrological ground particles in the area, including well points, river points, lake reservoir points, spring points and pit water inflow points in about 80 parts of the periphery of the pit, radiating and distributing points to mountain areas on two sides by taking the inter-mountain valley as a line, wherein the distribution point interval is more than 100m, and the number of the hydrological ground particles is not less than 50. Sampling hydrological geographical points respectively in a water-rich period and a dry period, wherein the water sample collection principle is as follows:
a) sampling underground water in two layers, wherein the upper layer is fourth series pore water, and sampling 22 groups in total; the lower layer is bedrock fracture water, and 30 groups are sampled;
b) sampling river water in stages, and collecting 7 groups in total; sampling pond water for 2 groups;
c) 4 groups of sampling water gushing from mine side slopes, and 8 groups of sampling underground haulage roadways;
filtering each sample product with a 0.45-micrometer filter membrane on site, collecting a 125ml high-density polyethylene bottle, flushing the high-density polyethylene bottle with filtered water for three times before collection, and screwing a bottle cap to seal by using a sealing film after water in the sample bottle overflows.
Performing water chemistry total analysis on the collected sample, determining the concentration of each ion, and selecting Na+、K+、Ca2+、Mg2+、Cl-、S04 2-、HC03 -、NO3 -、NO2 -The ions serve as a factor for cluster analysis. And running a clustering analysis model, and calculating the clustering distance R between the unknown horizon water burst point analysis factor and various underground water chemical characteristic components. And (4) performing statistical calculation by using a cluster analysis module in SPSS statistical software to finally obtain a corresponding cluster analysis pedigree diagram. And determining the source range of the water inrush according to the analysis and classification result.
Step three, water pumping test
And (4) after the source range of the water burst is deduced according to the cluster analysis result, selecting a plurality of wells as observation wells to carry out a water pumping test in the determined source range of the water burst by taking the hydrogeological drilling of the mine pit as a dewatering well (the dewatering well adopts a large-caliber complete diving well and a non-complete diving well with the diameter of 300mm, and the water level data of the observation wells are measured by DIVER). The water level change rule of the observation well of the pumping test is obtained through real-time measurement of the water level of the dewatering well, the measurement time interval is 30min, three times of lifting are carried out, the three times of lifting are compared with the water level change rule of the observation well, the permeability coefficient is calculated according to a fur clothing formula, if the permeability coefficient calculated according to a certain observation well is obviously larger than the calculation result (more than 2 times) of the rest observation wells, the observation well can be judged to be positioned on an underground water migration channel, and the water inrush direction can be judged. The permeability coefficient calculation formula is as follows:
1) the permeability coefficient calculation formula of the single-hole incomplete well of the diving aquifer is as follows:
in the formula: k-permeability coefficient (m/d);
Q-Water inflow (m) of pumping well3/d)；
L-Filter length (m);
s is the water level descending value of the pumping well;
r-radius of pumping well (m).
According to the empirical formula, the method comprises the following steps of,
r and K can be found iteratively.
2) Diving aquifer single-hole complete well:
the permeability coefficient of the single-hole complete well of the diving aquifer adopts a fur distribution algorithm according to the proposed permeability coefficient as follows:
in the formula: q-pumping flow (also known as hole water inflow);
h0-the water level (from the water-resisting bottom plate) or the seepage thickness at the outer boundary of the aquifer is taken to be 5 m; h iswWater level (from the water-resistant floor) or water layer thickness in the well;
r-radius of the cylindrical aquifer (assumed to affect the radius).
rw-the radius of the well;
k-aquifer permeability coefficient;
sw-the pumping water level is lowered to a depth;
according to the empirical formula, the method comprises the following steps of,
r and K can be found iteratively.
And step four, if the hydrogeological parameters have no obvious difference, calculating the water inrush source mixing ratio by adopting a mixing model, and performing iterative calculation through data of a plurality of observation wells to judge the water inrush direction and determine the treatment range.
The mixed model calculation formula is as follows:
in the formula, M1，M2And MWThe mineralization degrees of the two observation wells and the pumping well are respectively, P1 and P2 are the underground water mixing volume ratio of the source observation well of the water inrush point to be obtained.
Step five, pumping water and draining treatment
On the slope top of the largest water gushing source direction of the pit, two dewatering wells 7 and 8 are arranged, the well depth is 200m, the diameter is 315mm, a water suction pump is placed in the well to pump water and is used for draining the fourth series of pore water and the bedrock fracture water, the groundwater level is reduced, and therefore the water level in the slope of the pit is reduced to ensure the safety and stability of the slope. In addition, in order to reduce the influence of precipitation of the precipitation well on the environment near the river, the pit drainage ditch is used for draining water pumped out of the precipitation well. The schematic diagram of the effect of laying the dewatering well to dredge the groundwater from flowing into the mine pit is shown in fig. 3.
Step six, performing seepage-proofing treatment on rivers around the mine pit
After the investigation shows that the source of the water gushing of the pit roadway and the side slope is obtained, the anti-seepage treatment needs to be done on the river channel bottom at the source side of the water gushing source of the pit, so that the surface water is prevented from continuously permeating into the pit. The seepage-proofing treatment of the river channel bottom adopts a cement soil + bentonite waterproof blanket scheme. The scheme is suitable for various geological conditions, the current situation can be fully utilized to excavate soil materials, the investment is reduced, and the influence on the underground ecological environment can be reduced to the minimum. The concrete construction method of the bentonite waterproof blanket is shown in figure 4: firstly removing silt and magazines at the river bottom, and leveling the river channel to an excavation elevation; the bentonite waterproof blanket 3 with unit area mass is paved at the bottom of a river channel and on one bank close to a pit, in order to prevent water flow from scouring the bentonite waterproof blanket 3, cement soil 1 with 8 percent of cement content and 30cm of thickness is paved on the bentonite waterproof blanket 3, and the cement soil 1 can fully utilize the current situation of excavating soil materials, thereby reducing investment. And arranging a gabion 2 with the thickness of 30cm at intervals of 30m, mainly playing a role in preventing the deformation and the damage caused by the thermal freezing and the expansion of the cement soil, and then distributing plain soil 4 with the thickness of 5cm between the gabion 2 and the waterproof blanket 3.
Seventhly, intercepting the ditch
One side of the pit with the maximum water inflow is provided with a catch basin. For the side with lower slope topography of the mine pit and beneficial to the collection of underground water or the side of the position of a haulage roadway, in order to prevent surface water around a mine area from continuously seeping into the mine pit, a catch basin with the top width of 1.4m, the bottom width of 0.5m and the depth of about 0.85m needs to be arranged, and the length of the catch basin is determined according to the water gushing path of the mine pit (generally, the catch basin is the side with equivalent diameter of the mine pit)
Multiple). The section design and the function of the intercepting drain are shown in fig. 5 and fig. 6, wherein 5 represents a river around a mine pit, and 6 represents the intercepting drain.
In order to achieve a better effect, before the method for treating the water burst of the mine pit side slope is implemented, the following basic work needs to be completed:
and the research on the hydrogeological characteristics and the groundwater seepage field characteristics of the mining area is completed, and the source of water burst of the roadway and the side slope of the mining area is investigated.
And reasonable tests are carried out by combining the characteristics of the local engineering materials, an optimal proportioning scheme is searched, the materials are ensured to meet the design and construction requirements, the required materials are ensured to be sufficient, and the situations of insufficient or waste engineering materials and the like are avoided.
And selecting an optimal treatment scheme to ensure that the scheme is feasible, and properly adjusting the scheme when necessary.
The above embodiments only represent the best embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so that the technical solutions that can be realized on the basis of the above embodiments without creative efforts should be regarded as falling within the protection scope of the patent of the present invention.
Claims (10)
1. A method for identifying and treating water inrush direction of strip mine is characterized by comprising the following steps: the method comprises the following steps:
step one, carrying out hydrogeological survey, and determining a hydrogeological survey area by using an ArcGIS hydrogeological analysis module;
step two, respectively collecting water samples in a rich water period and a dry water period in the region, carrying out cluster analysis based on water chemistry characteristics, and deducing the range of a water burst source;
selecting a plurality of observation wells within the influence radius according to the inferred water inrush source range to carry out a water pumping test, recording water level data of a dewatering well and the observation wells, calculating a permeability coefficient according to the water level data, and carrying out comparative analysis to infer the water inrush direction;
step four, if the hydrogeological parameters have no obvious difference, calculating the water inrush source mixing ratio by adopting a mixing model, and performing iterative calculation through data of a plurality of observation wells to judge the water inrush direction and define a control range;
fifthly, pumping water and dredging treatment, wherein two dewatering wells are arranged on the top of the slope on one side of the water burst direction of the mine pit, and a water pump is placed in each dewatering well for pumping water and is used for draining the fourth series of pore water and the bedrock fracture water;
step six, adopting a method for preventing seepage of a river on one side of the water gushing direction of the mine pit;
and seventhly, treating the cut-off and drainage water on the ground surface of the mining area, and arranging a cut-off ditch on the side slope in the water inrush direction for treatment.
2. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: the hydrogeological survey in the first step comprises 1:50000 hydrogeological survey on a mining area, and the hydrogeological characteristics of the mining area are determined; finding out the structural characteristics and the crack development rule of bedrock in a mining area, determining a possibly large water control structure, and identifying water control cracks with different scales and development characteristics thereof; and (3) researching the water-rich property and distribution characteristics of the rock mass in the mining area on a macroscopic scale.
3. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: and in the second step, water samples in the water-rich period and the water-poor period are respectively collected, each water sample is filtered by placing a filter membrane on the needle tube in the sampling process and then is collected into a sampling bottle, the sampling bottle is a 125ml high-density polyethylene bottle, the aperture of the used filter membrane is 0.45 mu m, the sampling bottle is flushed with filtered water for more than three times during sampling, and after the water sample in the sampling bottle is full, the bottle cap is screwed down and sealed by adopting a sealing membrane.
4. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: in the second step, water samples in the rich water period and the dry water period are respectively collected in the region, cluster analysis based on water chemistry characteristics is carried out, and Na is selected+、K+、Ca2+、Mg2+、Cl-、S04 2-、HC03 -、NO3 -、NO2 -The ions are used as water chemical characteristic components, a cluster analysis module in SPSS statistical software of IBM company is used for carrying out statistical calculation, and the source range of the water burst is preliminarily deduced.
5. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: and in the third step, the dewatering well structure adopts a large-caliber complete diving well and a non-complete diving well with the diameter of 300mm, the arrangement of observation wells is in the range of water burst sources deduced by cluster analysis, and the water level data of the observation wells are measured by DIVER.
6. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: and in the third step, the permeability coefficient is calculated by adopting a fur distribution formula according to the pumping test result, and if the calculated permeability coefficient is obviously more than 2 times larger than the calculation results of the other observation wells according to a certain observation well, the observation well can be judged to be positioned on the underground water migration channel, namely the water inrush direction can be judged.
7. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: and in the fourth step, if the permeability coefficients calculated according to the observation wells have no obvious difference, selecting two observation wells with the closest calculated permeability coefficients, taking the mineralization degree as a calculation parameter, calculating the mixed volume ratio of the underground water according to the mixed model, dividing the connecting line of the two observation wells by the reciprocal of the volume ratio, wherein the dividing point is a new equivalent observation well point, sequentially iterating until all the observation wells in the class are calculated, and the final connecting line of the equivalent observation well point and the water pumping well point is the water inrush direction.
8. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: the water pumping and draining treatment in the fifth step comprises the following steps: two dewatering wells are arranged on the slope top in the direction of the largest water burst source of the pit, the well depth is 200m, the diameter is 315mm, and a water pump is arranged in each well for pumping water.
9. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: and in the sixth step, the seepage-proofing treatment of the river around the pit comprises the following steps: the anti-seepage treatment of the river channel bottom adopts the method that the bentonite waterproof blanket is paved with the cement soil with 8 percent of cement content and 30cm of thickness, and the gabion with the thickness of 30cm is arranged at intervals of 30m for preventing the cement soil from deforming caused by thermal freezing and stretching.
10. The method for identifying and governing the water inrush direction of an open-pit mine according to claim 1, wherein: and seventhly, arranging the intercepting ditch on one side of the maximum water inflow of the pit, wherein the width of the top of the intercepting ditch is 1.4m, the width of the bottom of the intercepting ditch is 0.5m, the depth of the intercepting ditch is about 0.85m, and the length of the intercepting ditch is determined according to the water inflow path condition of the pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010533831.0A CN111691887A (en) | 2020-06-12 | 2020-06-12 | Method for identifying and treating water gushing direction of strip mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010533831.0A CN111691887A (en) | 2020-06-12 | 2020-06-12 | Method for identifying and treating water gushing direction of strip mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111691887A true CN111691887A (en) | 2020-09-22 |
Family
ID=72480634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010533831.0A Pending CN111691887A (en) | 2020-06-12 | 2020-06-12 | Method for identifying and treating water gushing direction of strip mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111691887A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113269886A (en) * | 2021-04-29 | 2021-08-17 | 中国科学院武汉岩土力学研究所 | Slope three-dimensional digital twin model building method based on multi-source data fusion |
| CN113741563A (en) * | 2021-09-11 | 2021-12-03 | 无锡联友塑业有限公司 | Water outlet control platform applying block chain |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996030629A1 (en) * | 1995-03-31 | 1996-10-03 | Sedimentary Holdings Nl | The continuous mining, transport amd treatment system |
| CN107748928A (en) * | 2017-10-12 | 2018-03-02 | 中国煤炭地质总局水文地质局 | A kind of mine based on spatial analysis moves water yield computational methods and system |
| CN108915667A (en) * | 2018-06-27 | 2018-11-30 | 中煤科工集团西安研究院有限公司 | Based on infiltration coefficient with the method for porecasting water upwelling amount of mine well of separate zone production dynamic change |
| CN108955649A (en) * | 2018-05-21 | 2018-12-07 | 中国矿业大学 | A kind of prediction technique of coal mine work area top plate process water yield |
| CN110580655A (en) * | 2019-09-17 | 2019-12-17 | 山东浪潮通软信息科技有限公司 | Method and system for predicting coal mine water inflow based on LSTM algorithm |
| CN110777821A (en) * | 2019-11-14 | 2020-02-11 | 中钢集团马鞍山矿山研究院有限公司 | Method for treating water burst disaster of fissures of weathered rock slope |
| CN111191849A (en) * | 2020-01-03 | 2020-05-22 | 中煤科工集团西安研究院有限公司 | Method for predicting water inflow of deep-buried working face in western mining area |
| CN111927555A (en) * | 2020-08-14 | 2020-11-13 | 南京大学 | Dynamic prediction method for water inflow of coal mine working face under mining disturbance condition |
-
2020
- 2020-06-12 CN CN202010533831.0A patent/CN111691887A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996030629A1 (en) * | 1995-03-31 | 1996-10-03 | Sedimentary Holdings Nl | The continuous mining, transport amd treatment system |
| CN107748928A (en) * | 2017-10-12 | 2018-03-02 | 中国煤炭地质总局水文地质局 | A kind of mine based on spatial analysis moves water yield computational methods and system |
| CN108955649A (en) * | 2018-05-21 | 2018-12-07 | 中国矿业大学 | A kind of prediction technique of coal mine work area top plate process water yield |
| CN108915667A (en) * | 2018-06-27 | 2018-11-30 | 中煤科工集团西安研究院有限公司 | Based on infiltration coefficient with the method for porecasting water upwelling amount of mine well of separate zone production dynamic change |
| CN110580655A (en) * | 2019-09-17 | 2019-12-17 | 山东浪潮通软信息科技有限公司 | Method and system for predicting coal mine water inflow based on LSTM algorithm |
| CN110777821A (en) * | 2019-11-14 | 2020-02-11 | 中钢集团马鞍山矿山研究院有限公司 | Method for treating water burst disaster of fissures of weathered rock slope |
| CN111191849A (en) * | 2020-01-03 | 2020-05-22 | 中煤科工集团西安研究院有限公司 | Method for predicting water inflow of deep-buried working face in western mining area |
| CN111927555A (en) * | 2020-08-14 | 2020-11-13 | 南京大学 | Dynamic prediction method for water inflow of coal mine working face under mining disturbance condition |
Non-Patent Citations (2)
| Title |
|---|
| 张莹: "元宝山露天矿坑涌水研究及防治", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 胡博远: "大孤山铁矿西北边帮巷道涌水水源判别及水淹作用研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113269886A (en) * | 2021-04-29 | 2021-08-17 | 中国科学院武汉岩土力学研究所 | Slope three-dimensional digital twin model building method based on multi-source data fusion |
| CN113269886B (en) * | 2021-04-29 | 2022-10-18 | 中国科学院武汉岩土力学研究所 | Slope three-dimensional digital twin model building method based on multi-source data fusion |
| CN113741563A (en) * | 2021-09-11 | 2021-12-03 | 无锡联友塑业有限公司 | Water outlet control platform applying block chain |
| CN113741563B (en) * | 2021-09-11 | 2022-02-22 | 无锡联友塑业有限公司 | Water outlet control platform applying block chain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wright | The hydrogeology of crystalline basement aquifers in Africa | |
| Tolman et al. | Ground‐water, salt‐water infiltration, and ground‐surface recession in Santa Clara Valley, Santa Clara County, California | |
| Fidelibus et al. | Human-induced hydrogeological changes and sinkholes in the coastal gypsum karst of Lesina Marina area (Foggia Province, Italy) | |
| Chiocchini et al. | The impact of groundwater on the excavation of tunnels in two different hydrogeological settings in central Italy | |
| Fookes et al. | The application of engineering geology in the regional development of northern and central Iran | |
| CN111691887A (en) | Method for identifying and treating water gushing direction of strip mine | |
| Anderson | Hydrogeologic Reconnaissance of the Mekong Delta in South Vietnam and Cambodia | |
| Shaqour et al. | Groundwater control for construction purposes: a case study from Kuwait | |
| Yager et al. | Simulated effects of salt-mine collapse on ground-water flow and land subsidence in a glacial aquifer system, Livingston County, New York | |
| Gregg et al. | Geologic and hydrologic control of chloride contamination in aquifers at Brunswick, Glynn County, Georgia | |
| Benfetta et al. | Enhancement of the study of water leaks in the Algerian dam of Foum El Gherza | |
| Bahadorinia et al. | The morphology and development of Kalahroud Cave, Iran | |
| Moore | Geohydrology and water quality of stratified-drift aquifers in the Exeter, Lamprey, and Oyster River Basins, southeastern New Hampshire | |
| McDowell et al. | The nature, formation and engineering significance of sinkholes related to dissolution of chalk in SE Hampshire, England | |
| Erg | CHANGES IN GROUNDWATER SULPHATE CONTENT IN ESTONIAN OIL SHALE MINING AREA. | |
| Kordalski et al. | Groundwater flow modelling of main groundwater reservoirs in the Gdańsk region, Poland | |
| Krogulec et al. | Groundwater vulnerability to pollution in degraded coal mining areas: modifying the DRASTIC method using the factor of exploitation impact on land surface | |
| Shea | Mine water management of flooded coal mines in the Sydney coal field, Nova Scotia, Canada | |
| Erasmus | Groundwater Impact Assessment in a Coal Mine Area of Witbank, Mpumalanga | |
| Faillace | Hydrogeology of hard rocks in some eastern and western African countries | |
| RIVER | SOUTH SIDE OF RAILWAY VIADUCT SPENCER STREET TO CLARENDON STREET | |
| Baimirzaev et al. | Substantiation and Selection of Optimal Method of Angren Section Field Drainage | |
| Yuan et al. | Assessing the Effectiveness of Tailings Pond Seepage Remediation Using the Four Dimensions of “Point-Line-Surface-Body”: A Case Study | |
| MCKENNA et al. | EMPINGHAM RESERVOIR-SEEPAGE CONTROL MEASURES. | |
| Chironga | Designing a dewatering plan for the Ruashi mine in the Democratic Republic of Congo |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200922 |