CN115928665A - Visual dam body for observing dynamic water storage of underground reservoir and construction method - Google Patents
Visual dam body for observing dynamic water storage of underground reservoir and construction method Download PDFInfo
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- CN115928665A CN115928665A CN202211673780.7A CN202211673780A CN115928665A CN 115928665 A CN115928665 A CN 115928665A CN 202211673780 A CN202211673780 A CN 202211673780A CN 115928665 A CN115928665 A CN 115928665A
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Abstract
The invention discloses a visual dam body for observing dynamic water storage of an underground reservoir and a construction method. The method comprises the following steps: surveying the underground reservoir to determine the overall condition of the underground reservoir; designing the size of a visual artificial dam body according to the investigation result, and manufacturing grooves at coal pillars on two sides of the connection roadway and the bottom plate of the connection roadway; pouring a visual artificial dam body according to the groove, and welding a preset steel bar with the observation cabin before pouring to fix the observation cabin; after the visual artificial dam is poured, performing anti-seepage treatment on the groove and the observation cabin of the visual artificial dam; after the whole construction is finished, the water storage state of the underground reservoir is observed for a long time through the observation opening, and an explosion-proof camera, an explosion-proof mining searchlight and the like can be placed in the observation cabin, or a stress meter, a water pressure meter and the like are placed on the outer side of the dam body for long-time monitoring. The invention solves the problems that the water storage state of the underground reservoir can not be observed at any time and intuitively and the construction can not be carried out on the side close to water after the construction.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, coal mine underground reservoirs and artificial dams, in particular to a visual dam for observing dynamic water storage of an underground reservoir and a construction method.
Background
Water resources are indispensable resources for human beings, and coal is also a main energy supply mode in China. In the coal mining industry, water resources in the middle and the western part of China are short, the utilization rate of mine water is very low, and mine wastewater contains high heavy metals, solid suspended matters and the like, so that the waste of water resources is caused by direct discharge, and the ecological environment is also damaged. Under the background, the technical team 'coal mining water resource protection and utilization' of the national energy group proposes a mine water storage concept of the coal mine underground reservoir characterized by 'storage guiding' and research and development of the coal mine underground reservoir technology are creatively carried out by a scientific research team represented by the Chilobrachys lobrachys warz, and large-scale protection and utilization of the mine water resource are realized.
At present, the underground reservoir is implemented in partial mineral areas in China, but the problem that the water storage state of the coal mine underground reservoir cannot be observed through an artificial dam body at any time and intuitively is still a problem; and after the construction of the artificial dam body is finished, the side, close to the water, of the artificial dam body cannot be constructed at all. Therefore, it is necessary to provide a multifunctional visual artificial dam to solve the above problems.
Disclosure of Invention
The technical scheme for solving the problems is as follows: a visual dam body for observing dynamic water storage of an underground reservoir and a construction method thereof comprise the following steps.
a. Surveying the water area and the connection roadway of the underground reservoir, determining the water area range, the collapse degree of the overlying strata of the connection roadway, the leveling degree of the bottom plate and the leveling degrees of the coal pillars at two sides, selecting the position where the overlying strata of the connection roadway and the rock face of the bottom plate are relatively orderly, placing the visual artificial dam body, and measuring the height H and the width L of the position.
b. According to the investigation result, the size of the visual artificial dam body is designed to be L =1.3L, the height is H =1.2H, and the thickness is mu =1m; according to the actual construction condition, the size and the position of the visual artificial dam body can be reasonably adjusted; the length-width-height ratio of a groove is preset to be 0.1l muH, and the length-width-height ratio of a bottom groove is preset to be 1.2l muH, 0.2H at the bottom of the visual artificial dam body.
c. The size of an observation cabin in the visual artificial dam body is phi 50 multiplied by 100mm, and the visual artificial dam body consists of a front end cover, a rear end cover, a front observation port, a rear observation port, a red copper sealing ring, a manual pressure valve, a pressure cabin door, a watertight pressure cabin door and the like; the watertight pressure cabin door is positioned on one side of the dam body close to water; each visual artificial dam body comprises 9 observation cabins which are uniformly distributed by 3 multiplied by 3, and the interval of each observation cabin is at least 2m; if the size H or L of the dam body is less than 5m, the observation cabins can be uniformly distributed by 2 x 3 or 2 x 2.
d. After the preset steel bar structure is welded with the observation cabin, the front end cover and the rear end cover cannot be poured in the artificial dam body according to the process of pouring the visual artificial dam body in the groove, and the front end cover and the rear end cover are required to be completely positioned on the outer side of the artificial dam body so as to avoid hindering the opening and closing of the pressure cabin door; and the front end cover and the rear end cover are tightly embedded with the artificial dam body, so that the stability is enhanced.
e. After the visual artificial dam body is poured, backfilling mining mortar at the two sides of the visual artificial dam body and at the grooves of the bottom plate to enable the artificial dam body to be completely embedded with the coal pillars and the bottom plate; and (3) coating water-discharging gel or waterproof spray paint at the joint of the observation cabin and the artificial dam body.
f. After the dam body is integrally constructed, site personnel can visually observe the water storage state of the underground reservoir through the front observation port and the rear observation port; an explosion-proof camera can be placed in the observation cabin to monitor the water level height for a long time; an explosion-proof mining searchlight can be placed in the observation cabin to improve the illumination quality; corresponding operation can be carried out in the observation cabin according to the requirements of the actual construction situation on site.
g. After the integral construction of the dam body is finished, when the water level is lower than the height of an observation cabin on a certain layer, a watertight pressure cabin of an upper observation cabin can be opened, and sensors such as a stress meter, a water pressure meter and the like are placed on the side, close to water, of the artificial dam body to monitor the internal stress condition, the water pressure and the like of the dam body for a long time; water and rock samples can be taken through the observation cabin; the side of the artificial dam body close to the water can be correspondingly operated through the observation cabin according to the requirements of the actual construction situation on site.
h. After the construction of the whole visual artificial dam body is completed, the height and the water quality condition of the water area of the underground reservoir are regularly observed through the observation port, water area scheduling, water pumping, water storage and the like are carried out according to the observation condition, the whole safety condition of the visual artificial dam body, coal pillars on two sides of the visual artificial dam body and a bottom plate of the visual artificial dam body is monitored, and the regular inspection and reinforcement treatment are carried out.
Drawings
FIG. 1 is a flow chart of a visual dam body for observing dynamic water storage of an underground reservoir and a construction method in an embodiment of the invention;
FIG. 2 is a schematic diagram of the visualization dam body when the observation cabin is closed according to the embodiment of the invention;
FIG. 3 is a schematic diagram of the visualization dam when the observation cabin is opened according to the embodiment of the invention;
FIG. 4 is a schematic diagram of the preset steel bars of the visual dam according to the embodiment of the invention;
FIG. 5 is a schematic diagram of the visible dam with reinforcing bars and surrounding grooves;
FIG. 6 is a schematic view of a structure of an observation cabin in an embodiment of the present invention;
FIG. 7 is a front view of a pressure port door of an observation pod as it opens in an embodiment of the present invention;
FIG. 8 is a front view of a pressure port door and a watertight pressure port door of an observation pod, opening simultaneously, in an embodiment of the present invention;
FIG. 9 is a front view of an embodiment of the present invention with an explosion proof camera positioned in the observation pod;
FIG. 10 is a front view of an explosion-proof searchlight for mine in an observation cabin according to an embodiment of the invention.
In the figure: the device comprises a visual artificial dam body 1, an observation cabin 2, a groove 3, a coal pillar dam body 4, a connecting roadway bottom plate 5, a front end cover 6, a rear end cover 7, a front observation port 8, a rear observation port 9, a red copper sealing ring 10, a manual pressure valve 11, a pressure cabin door 12, a watertight pressure cabin door 13, a mining explosion-proof camera 14, a mining explosion-proof searchlight 15, a horizontal distribution rib 16, a transverse distribution rib 17, a longitudinal rib 18 and a stirrup 19.
Detailed Description
The invention is further described with reference to the accompanying drawings and examples, and the construction process flow of the invention is specifically described by the overall construction process of the visual artificial dam body in a certain mining area as shown in fig. 1.
A visual dam body for observing dynamic water storage of an underground reservoir and a construction method thereof comprise the following steps:
a. surveying the water area of the underground reservoir and the connection roadway, determining the water area range, the caving degree of the overlying strata of the connection roadway, the leveling degree of the coal pillar dam bodies 4 on two sides and the leveling degree of the bottom plate 5 of the connection roadway, and selecting the more tidy position of the overlying strata of the connection roadway and the rock surface of the bottom plate to place the visual artificial dam body 1.
b. And (4) measuring the height H and the width L of the connection roadway at the position where the visual artificial dam body 1 is placed.
c. The size of an observation cabin 2 in the visual artificial dam body 1 is phi 50 multiplied by 100mm, and the observation cabin consists of a front end cover 6, a rear end cover 7, a front observation port 8, a rear observation port 9, a red copper sealing ring 10, a manual pressure valve 11, a pressure cabin door 12, a watertight pressure cabin door 13 and the like.
d. The preset steel bar structure is composed of horizontal distribution bars 16, transverse distribution bars 17, main bars 18 and stirrups 19. The horizontal distribution ribs 16 and the transverse distribution ribs 17 are welded with the observation cabin 2 to fix the observation cabin.
e. When the preset steel bar is welded with the observation cabin 2, the watertight pressure cabin door 13 needs to be positioned on the side, close to water, of the dam body.
f. In the welding process, each visual artificial dam body 1 comprises 9 observation cabins 2 which are uniformly distributed at 3 x 3, and the interval of each observation cabin 2 is at least 2m; if the dam body size H or L is less than 5m, the observation cabins 2 can be uniformly distributed by 2 x 3 or 2 x 2.
g. After the preset steel bar structure is welded with the observation cabin 2, in the process of pouring the visual artificial dam body 1 according to the groove 3, the front end cover 6 and the rear end cover 7 cannot be poured into the visual artificial dam body 1, and the front end cover and the rear end cover are required to be completely positioned outside the visual artificial dam body 1 so as not to hinder the opening and closing of the pressure cabin door 12.
h. When the visual artificial dam body 1 is poured, the front end cover and the rear end cover are tightly embedded with the visual artificial dam body 1, so that the stability is enhanced.
i. And after the visual artificial dam body is poured, backfilling mining mortar at the two sides of the visual artificial dam body 1 and the grooves 3 of the bottom plate to enable the artificial dam body 1 to be completely embedded with the coal pillars and the bottom plate.
j. And (3) coating hydrogel or waterproof paint at the joint of the observation cabin 2 and the visual artificial dam body 1.
k. After the dam body is integrally constructed, field personnel can visually observe the water storage state of the underground reservoir through the front observation port and the rear observation port.
The mine explosion-proof camera 14 can be placed in the observation cabin 2 to monitor the water level height for a long time.
m. the mine explosion-proof searchlight 15 can be placed in the observation cabin 2 to improve the illumination quality.
And n, when corresponding operation is carried out in the observation cabin 2, the manual pressure valve 11 of the watertight pressure cabin 13 needs to be screwed down, so that the airtightness of the cabin is ensured.
And o, after the whole construction of the dam body is finished, when the water level is lower than the height of the observation cabin 2 on a certain layer, opening the watertight pressure cabin of the observation cabin 2 on the upper layer, and placing sensors such as a stress gauge, a water pressure gauge and the like on the side, close to water, of the visual artificial dam body 1 for monitoring the internal stress condition, the water pressure and the like of the dam body for a long time.
And p, water and rock samples can be taken through the observation cabin 2.
And q, performing corresponding operation in the observation cabin 2 according to the requirement of the actual construction situation on site, or performing corresponding operation on the side, close to the water, of the visual artificial dam body 1 through the observation cabin 2.
And l, after the construction of the whole visual artificial dam body 1 is finished, regularly observing the water area height and the water quality condition of the underground reservoir through an observation port, scheduling, pumping, storing water and the like of the water area according to the observation condition, monitoring the whole safety condition of the visual artificial dam body 1 and coal pillars and bottom plates on two sides of the visual artificial dam body, and regularly checking and reinforcing.
The invention solves the problems that the water storage state of the coal mine underground reservoir can not be observed at any time and intuitively through the artificial dam body and the construction can not be carried out on the side close to water of the visual artificial dam body, and ensures the long-term safe operation of the underground reservoir.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (8)
1. A visual dam body for observing dynamic water storage of an underground reservoir and a construction method are characterized by comprising the following steps:
a. carrying out overall investigation on the underground reservoir, and determining the height and width of the connecting roadway, the types of the overlying strata and the bottom plate rock mass and the overall caving condition;
b. designing the size of a visual artificial dam body according to the investigation result, and manufacturing grooves at coal pillars on two sides of the connection roadway and the bottom plate of the connection roadway;
c. pouring a visual artificial dam body according to the groove, and welding a preset steel bar with the observation cabin before pouring to fix the observation cabin;
d. after the visual artificial dam is poured, performing anti-seepage treatment on the groove and the observation cabin of the visual artificial dam;
e. after the integral construction is finished, the water storage state of the underground reservoir is observed for a long time through the observation opening, and an explosion-proof camera, an explosion-proof mining searchlight and the like can be placed in the observation cabin, or a stress meter, a water pressure meter and the like are placed on the outer side of the dam body for long-term monitoring.
2. The visual dam body for observing the dynamic water storage of the underground reservoir and the construction method of the visual dam body are characterized in that in the step a, the water area and the connection lane of the underground reservoir are surveyed, the water area range, the caving degree of the overlying rock stratum of the connection lane, the leveling degree of the bottom plate and the leveling degrees of the coal pillars at two sides are determined, the visual artificial dam body is placed at the position where the overlying rock stratum and the rock surface of the bottom plate of the connection lane are relatively regular, and the height H and the width L are measured.
3. The visualized dam body for observing the dynamic water storage of the underground reservoir and the construction method thereof as claimed in claim 1, wherein in said step b, according to the investigation result, the visualized artificial dam body is designed to have a dimension of L =1.3L, a height of H =1.2H and a thickness of μ =1m; according to the actual construction condition, the size and the position of the visual artificial dam body can be reasonably adjusted; the length-width-height ratio of a groove is preset to be 0.1l muH, and the length-width-height ratio of a bottom groove is preset to be 1.2l muH, 0.2H at the bottom of the visual artificial dam body.
4. The visualized dam body for observing the dynamic water storage of the underground reservoir and the construction method thereof as claimed in claim 1, wherein in the step c, the observation cabin has a size of phi 50 x 100mm and is composed of a front end cover, a rear end cover, a front observation port, a rear observation port, a red copper seal ring, a manual pressure valve, a pressure cabin door, a watertight pressure cabin door and the like; the watertight pressure cabin door is positioned on one side of the dam body close to water; each visual artificial dam body comprises 9 observation cabins which are uniformly distributed by 3 multiplied by 3, and the interval of each observation cabin is at least 2m; if the size H or L of the dam body is less than 5m, the observation cabins can be uniformly distributed by 2 x 3 or 2 x 2.
5. The visual dam body for observing the dynamic water storage of the underground reservoir and the construction method thereof according to claim 1, wherein in the step c, after the preset steel bar structure is welded with the observation cabin, the front end cover and the rear end cover cannot be poured into the artificial dam body in the process of pouring the visual artificial dam body according to the groove, and the front end cover and the rear end cover are completely positioned outside the artificial dam body so as not to hinder the opening and closing of the pressure cabin door; and the front end cover and the rear end cover are tightly embedded with the artificial dam body, so that the stability is enhanced.
6. The visual dam body for observing the dynamic water storage of the underground reservoir and the construction method thereof according to claim 1, wherein in the step d, after the pouring of the visual artificial dam body is completed, the grooves on the two sides and the bottom plate of the visual artificial dam body are backfilled with mining mortar, so that the artificial dam body is completely embedded with the coal pillars and the bottom plate; and (3) coating water-discharging gel or waterproof spray paint at the joint of the observation cabin and the artificial dam body.
7. The visual dam body for observing the dynamic water storage of the underground reservoir and the construction method thereof as claimed in claim 1, wherein in the step e, after the whole dam body construction is completed, field personnel can visually observe the water storage state of the underground reservoir through the front and rear observation ports; an explosion-proof camera can be placed in the observation cabin to monitor the water level height for a long time; an explosion-proof mining searchlight can be placed in the observation cabin to improve the illumination quality; corresponding operation can be carried out in the observation cabin according to the requirements of the actual construction situation on site.
8. The visualized dam body for observing the dynamic water storage of the underground reservoir and the construction method thereof as claimed in claim 1, wherein in the step e, after the whole construction of the dam body is completed, when the water level is lower than the height of an observation cabin at a certain layer, a watertight pressure cabin of an upper observation cabin can be opened, and sensors such as a stress gauge, a water pressure gauge and the like are arranged at the side of the artificial dam body close to the water, so as to monitor the internal stress condition, the water pressure and the like of the dam body for a long time; water and rock samples can be taken through the observation cabin; the side of the artificial dam body close to the water can be correspondingly operated through the observation cabin according to the requirements of the actual construction situation on site.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633401A (en) * | 2008-07-25 | 2010-01-27 | 中国科学院声学研究所 | Underwater optical observation cabin |
| US20160201460A1 (en) * | 2013-08-14 | 2016-07-14 | China Shenhua Energy Company Limited | An artificial dam of distributed coal mine underground reservoir and its constructing method |
| CN110359957A (en) * | 2019-07-31 | 2019-10-22 | 国家能源投资集团有限责任公司 | A kind of dam body connection structure and its construction method |
| US20200240270A1 (en) * | 2019-01-29 | 2020-07-30 | China University Of Mining And Technology (Beijing) | I-Shaped Water-Retaining Dam For Underground Reservoir In Coal Mine |
| CN112681236A (en) * | 2020-12-23 | 2021-04-20 | 国能包头能源有限责任公司 | Artificial dam body of coal mine underground reservoir and design and construction method thereof |
| CN114075994A (en) * | 2020-08-13 | 2022-02-22 | 神华神东煤炭集团有限责任公司 | Artificial retaining dam for coal mine underground reservoir |
| CN114763695A (en) * | 2021-01-14 | 2022-07-19 | 神华神东煤炭集团有限责任公司 | Artificial dam body for underground reservoir and construction method thereof |
-
2022
- 2022-12-26 CN CN202211673780.7A patent/CN115928665A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633401A (en) * | 2008-07-25 | 2010-01-27 | 中国科学院声学研究所 | Underwater optical observation cabin |
| US20160201460A1 (en) * | 2013-08-14 | 2016-07-14 | China Shenhua Energy Company Limited | An artificial dam of distributed coal mine underground reservoir and its constructing method |
| US20200240270A1 (en) * | 2019-01-29 | 2020-07-30 | China University Of Mining And Technology (Beijing) | I-Shaped Water-Retaining Dam For Underground Reservoir In Coal Mine |
| CN110359957A (en) * | 2019-07-31 | 2019-10-22 | 国家能源投资集团有限责任公司 | A kind of dam body connection structure and its construction method |
| CN114075994A (en) * | 2020-08-13 | 2022-02-22 | 神华神东煤炭集团有限责任公司 | Artificial retaining dam for coal mine underground reservoir |
| CN112681236A (en) * | 2020-12-23 | 2021-04-20 | 国能包头能源有限责任公司 | Artificial dam body of coal mine underground reservoir and design and construction method thereof |
| CN114763695A (en) * | 2021-01-14 | 2022-07-19 | 神华神东煤炭集团有限责任公司 | Artificial dam body for underground reservoir and construction method thereof |
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| CI02 | Correction of invention patent application |
Correction item: Classification number Correct: E21F 17/103(2006.01)|E21F 17/16(2006.01)|E21F 17/18(2006.01) False: E02B 7/02(2006.01) Number: 14-02 Page: The title page Volume: 39 Correction item: Classification number Correct: E21F 17/103(2006.01)|E21F 17/16(2006.01)|E21F 17/18(2006.01) False: E02B 7/02(2006.01) Number: 14-02 Volume: 39 |
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