Large-scale grouting curtain inside and outside hydrological monitoring system

Abstract

The utility model relates to a large-scale grouting curtain inside and outside hydrological monitoring system, and belongs to the technical field of mine production equipment. The technical scheme of the utility model is as follows: a surface drilling hydrologic monitoring substation (3) is connected with a data acquisition unit (2) through a GPRS (General Packet Radio Service) network; the data acquisition unit (2) is connected with an industrial personal computer (1); the drill hole water pressure gauge (5), the water sump water level gauge (6) and the open channel flowmeter (7) are connected with the underground hydrologic monitoring substation (8) through communication cables, and the underground hydrologic monitoring substation (8) is connected with the industrial personal computer (1) through the optical fiber ring network (4). The beneficial effects of the utility model are that the effect of the grouting curtain is detected by using multi-parameter comprehensive hydrological monitoring, the mine production safety is ensured, and the underground hydrological condition is monitored in real time in the production and construction process, so that the accurate early warning of the water disaster event is realized, and the safe operation of the mine production is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a large -scale grouting curtain inside and outside hydrological monitoring system belongs to mine production equipment technical field. BACKGROUND

[0002] Mine water disaster is one of main safety disasters in mine construction production process.

[0003] With the development of science and technology and the increase of demand for mineral resources, deep mining degree is continuously improved. On the one hand, the mine pressure increases to deep part, and the water head pressure of confined water is also more and more big;On the one hand, with the expansion of mining range, the uncertain factors in mine hydrogeological conditions also increase with the expansion of area, and the potential danger also increases;At the same time, the safety mining requirement condition is higher and higher, and the mining after dewatering is more beneficial to safety control, and the mining under pressure increases the possibility of underground water disaster, so the requirement of mine water disaster safety early warning technology and prevention and control technology is higher and more urgent. Especially large water metal mine, there are characteristics such as poor stability of broken rock, easy to be mudified when water is encountered, etc., and there are safety risks such as water inrush, collapse and shotcreting in the process of mining, which cause great threat to mine safety production. Curtain grouting is to inject coagulation slurry into rock karst fissure by pressure to form continuous water isolation body with certain thickness and strength, so as to reduce the permeability of rock mass and block underground water passage. With the gradual maturity of curtain grouting technology, its application in mine is gradually increased, and the grouting effect directly determines whether the mine can be safely mined. In order to verify the effect of grouting curtain, it is necessary to develop a large -scale grouting curtain inside and outside hydrological monitoring system. SUMMARY

[0004] The utility model aims at providing a kind of large -scale grouting curtain inside and outside hydrological monitoring system, by utilizing multi-parameter comprehensive hydrological monitoring, the effect of grouting curtain is detected, ensure that mine production safety is carried out while in production construction process to the underground hydrological condition is monitored in real time, to realize the accurate early warning to water disaster event, ensure that mine production safety runs, the above-mentioned problems existing in background art are solved.

[0005] The technical scheme of the utility model discloses: a large-scale grouting curtain internal and external hydrological monitoring system, include industrial computer, surface drilling hydrological monitoring equipment and downhole hydrological monitoring equipment, surface drilling hydrological monitoring equipment and downhole hydrological monitoring equipment are connected with industrial computer, and surface drilling hydrological monitoring equipment includes data collector and surface drilling hydrological monitoring substation;Surface drilling is observed a plurality of holes, and all install surface drilling hydrological monitoring substation, and surface drilling hydrological monitoring substation is connected with data collector through GPRS network, and data collector is connected with industrial computer;Downhole hydrological monitoring equipment includes downhole hydrological monitoring substation, drilling water pressure gauge, water sump water level meter and open channel flowmeter, and drilling water pressure gauge, water sump water level meter and open channel flowmeter are connected with downhole hydrological monitoring substation through communication cable, and downhole hydrological monitoring substation is connected with industrial computer through fiber ring network.

[0006] The drilling water pressure gauge is multiple, is installed in the water outlet hole and the water outlet drilling in the downhole respectively, and the water sump water level meter is installed at the downhole water sump.

[0007] The drilling water pressure gauge, water sump water level meter, open channel flowmeter and surface drilling hydrological monitoring substation measure water temperature simultaneously.

[0008] The industrial computer is installed on the surface.

[0009] The utility model relates to industrial computer, data collector, surface drilling hydrological monitoring substation, fiber ring network, drilling water pressure gauge, water sump water level meter, open channel flowmeter and downhole hydrological monitoring substation are all the equipment commonly used in the field.

[0010] The surface drilling hydrological monitoring substation adopts mine pressure type water level temperature sensor HG500;Data collector adopts mine monitoring data acquisition instrument WYH170-1;Industrial computer adopts LENOVO type, and built-in hydrological monitoring early warning platform;Downhole hydrological monitoring substation adopts mine intrinsic safety type hydrological monitoring substation KJ1072-F;Drilling water pressure gauge adopts mine intrinsic safety type water pressure monitor YHY10;Water sump water level meter adopts mine intrinsic safety type water level monitor TJL12;Open channel flowmeter adopts mine intrinsic safety type open channel flowmeter YML1000.

[0011] The utility model has the advantages that: through the utilization of multi-parameter comprehensive hydrological monitoring, the effect of grouting curtain is detected, the mine production safety is guaranteed, and the downhole hydrological condition is monitored in real time in the production construction process, accurate early warning of water disaster events is realized, and the mine production safety operation is guaranteed. ACCURACY

[0012] Figure 1 It is the whole structure schematic diagram of the utility model;

[0013] Figure 2 is a -170m horizontal well hydrology monitoring arrangement schematic diagram in the embodiment of the utility model;

[0014] Figure 3 is a -230m horizontal well hydrology monitoring arrangement schematic diagram in the embodiment of the utility model;

[0015] Figure 4 is a -245m horizontal well hydrology monitoring arrangement schematic diagram in the embodiment of the utility model;

[0016] Figure 5 is a -260m horizontal well hydrology monitoring arrangement schematic diagram in the embodiment of the utility model;

[0017] Figure 6 is a ground surface curtain inside and outside borehole hydrology monitoring substation arrangement schematic diagram in the embodiment of the utility model;

[0018] Figure 7 is a ground surface borehole hydrology monitoring substation installation schematic diagram in the embodiment of the utility model;

[0019] In the drawing: industrial computer 1, data collector 2, ground surface borehole hydrology monitoring substation 3, optical fiber ring network 4, borehole water pressure gauge 5, water sump water level gauge 6, open channel flowmeter 7, wellbore hydrology monitoring substation 8. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment.

[0021] A large-scale grouting curtain inside and outside hydrology monitoring system, comprising industrial computer 1, ground surface borehole hydrology monitoring equipment and wellbore hydrology monitoring equipment, the ground surface borehole hydrology monitoring equipment and wellbore hydrology monitoring equipment are connected with industrial computer 1, the ground surface borehole hydrology monitoring equipment comprises data collector 2 and ground surface borehole hydrology monitoring substation 3, the ground surface borehole hydrology monitoring substation 3 is connected with data collector 2 through GPRS network, and data collector 2 is connected with industrial computer 1, the wellbore hydrology monitoring equipment comprises wellbore hydrology monitoring substation 8, borehole water pressure gauge 5, water sump water level gauge 6 and open channel flowmeter 7, borehole water pressure gauge 5, water sump water level gauge 6 and open channel flowmeter 7 are connected with wellbore hydrology monitoring substation 8 through communication cable, and wellbore hydrology monitoring substation 8 is connected with industrial computer 1 through optical fiber ring network 4.

[0022] The number of borehole water pressure gauges 5 is multiple, which are respectively installed in the water discharge hole and water outlet hole under the well, and the water sump water level gauge 6 is installed at the water sump under the well, and the open channel flowmeter 7 is installed in the water ditch at the water outlet point and the water outlet point.

[0023] The drill hole water pressure gauge 5, the sump water level gauge 6, the open channel flow meter 7 and the surface drill hole hydrological monitoring substation 3 simultaneously measure water temperature.

[0024] The industrial computer 1 is installed on the surface.

[0025] The industrial computer 1, the data collector 2, the surface drill hole hydrological monitoring substation 3, the optical fiber ring network 4, the drill hole water pressure gauge 5, the sump water level gauge 6, the open channel flow meter 7 and the underground hydrological monitoring substation 8 are all commonly used devices in the field.

[0026] The surface drill hole hydrological monitoring substation 3 adopts a mine-used pressure type water level and water temperature sensor HG500; the data collector 2 adopts a mine-used monitoring data collector WYH170-1; the industrial computer 1 adopts a LENOVO type, and is internally provided with a hydrological monitoring early warning platform; the underground hydrological monitoring substation 8 adopts a mine-used intrinsic safety type hydrological monitoring substation KJ1072-F; the drill hole water pressure gauge 5 adopts a mine-used intrinsic safety type water pressure monitor YHY10; the sump water level gauge 6 adopts a mine-used intrinsic safety type water level monitor TJL12; and the open channel flow meter 7 adopts a mine-used intrinsic safety type open channel flow meter YML1000.

[0027] In actual application, the utility model adopts a comprehensive monitoring method of "curtain inside and outside surface drill hole hydrological monitoring, underground drill hole water pressure monitoring, sump water level monitoring and open channel flow meter", the curtain inside and outside surface drill hole hydrological monitoring can monitor water level and water temperature inside and outside the grouting curtain in real time, which is of great significance to test the grouting effect of the curtain, the underground drill hole water pressure monitoring can monitor water pressure and water temperature in the drill hole in the curtain underground or in a complex hydrogeological condition area in real time, once water pressure and water temperature suddenly change, early warning is carried out in time to prevent water inrush accidents, the open channel flow meter monitors flow and water temperature in the ditch at each horizontal drainage well and main water outlet, once flow and water temperature in the ditch suddenly change, early warning is carried out in time to remind on-site personnel to investigate, the sump water level gauge monitors sump water level and water temperature in real time, once sump water level and water temperature suddenly increase, early warning is carried out in time to remind on-site personnel to investigate the cause in time.

[0028] The installation method of the utility model is as follows:

[0029] Firstly, the surface drill hole hydrological monitoring substation 3 is installed on the surface for 23 surface drill holes including 18 drill holes inside and outside the curtain and 5 drill holes inside the curtain. The surface drill hole hydrological monitoring substation collects surface drill hole water level and water temperature data and transmits the data to the data collector 2 through a GPRS network, the data collector 2 transmits the collected hydrological data to the industrial computer 1 through a network cable, the industrial computer analyzes the collected surface drill hole hydrological data, obtains real-time dynamic water level and water temperature information of the drill hole, and compares and analyzes the information with other drill hole information.

[0030] Then, borehole pressure gauges 5 are installed at locations such as discharge wells with large water output and boreholes in areas with complex hydrogeological conditions. The water pressure and temperature data collected by the borehole pressure gauges 5 are transmitted to the hydrological monitoring substation 8 via communication cables. The hydrological monitoring substation 8 transmits the data to the industrial control computer 1 via a fiber optic ring network 4. The industrial control computer 1 analyzes the water pressure and temperature data collected by the borehole pressure gauges 5 to obtain real-time dynamic water level and temperature information for the borehole. An early warning is triggered if the water level or temperature data exceeds the limits. Open channel flow meters 7 are installed in ditches at each horizontal discharge wellhead and main outlet points. The water volume and temperature data collected by the open channel flow meters 7 are transmitted to the hydrological monitoring substation 8 via communication cables. The hydrological monitoring substation 8 transmits the data to the industrial control computer 1 via a fiber optic ring network 4. The industrial control computer 1 analyzes the water volume and temperature data collected by the open channel flow meters 7 to obtain real-time dynamic flow information for that location. An early warning is triggered if the flow data exceeds the limits. A water level gauge 6 is installed at the underground water tank. The water level and temperature data collected by the water level gauge 6 are transmitted to the hydrological monitoring substation 8 via a communication cable. The hydrological monitoring substation 8 transmits the data to the industrial control computer 1 via a fiber optic ring network 4. The industrial control computer 1 analyzes the water level data collected by the water level gauge 6 to obtain the real-time water level information at that location. An early warning will be triggered if the water level or temperature data exceeds the limit.

[0031] By utilizing multi-parameter integrated hydrological monitoring, the effectiveness of the grouting curtain is detected, and the underground hydrological conditions are monitored in real time to achieve accurate early warning of water-related incidents and ensure the safe operation of mine production. Example

[0032] (1) A certain iron mine is a typical large-scale water-prone mine with complex hydrogeological conditions. In the 1990s, due to the sharp decline in regional groundwater, and considering that the mining of this mine would further aggravate the geological environment of the area, the mine was listed as a "restricted mining" mine. In the 21st century, through the introduction of curtain grouting technology, the mine was changed from a planned restricted mining area to a permitted mining area. In order to verify the effect of the grouting curtain and at the same time to monitor the mine water hazards in real time, it is urgent to build a large-scale hydrological monitoring system inside and outside the grouting curtain.

[0033] (2) Determine the location of surface monitoring and formulate a technical plan for surface borehole hydrological monitoring. A certain iron mine uses a single-row fully enclosed curtain grouting method to block the mine's groundwater. The curtain line is over 3000 meters long, with the top elevation +100m and the bottom elevation 10m into the diorite. To observe the dynamic changes of groundwater inside and outside the curtain after its formation and to analyze and evaluate the quality and effect of the curtain construction, 9 pairs of 18 observation holes (9 inside the curtain and 9 outside the curtain) were set up along the curtain line in areas with complex geological and hydrogeological conditions and high water content. In areas with complex hydrogeological conditions and high water content within the curtain, 5 observation holes were set up underground, avoiding development roadways and mining areas, for a total of 23 observation holes. Figure 6, each observation hole is installed with a set of ground drilling hydrological monitoring substation, such as Figure 7 .

[0034] The ground drilling hydrological monitoring substation 3 is connected with the data collector 2 through the GPRS network, and the data collector 2 is connected with the industrial computer 1 through the network cable.

[0035] The ground drilling hydrological monitoring substation 3 adopts the mine pressure type water level and water temperature sensor HG500; the data collector 2 adopts the mine monitoring data collection instrument WYH170-1; the industrial computer 1 adopts the LENOVO type; the UPS power supply adopts the KDW660-24B type; and the hydrological monitoring and early warning platform adopts the KJ1072 hydrological monitoring system and is installed in the industrial computer.

[0036] (3) Determine the underground hydrological monitoring layout scheme. The first mining section of a certain iron mine is the-230m level, the-170m level is the rock drilling level, the-245m level is the transportation level, and the-260m level is the underground water warehouse level. There are several water discharge chambers at the-170m, -230m and-245m levels, and there are several water discharge holes in the water discharge chambers. The water inrush in the roadway at the-170m, -230m and-245m levels flows to the drainage well through the water ditch, and then flows to the-260m level through the drainage well. At the-260m level, the water flows to the water warehouse through the water ditch.

[0037] At the-170m level, 6 drill hole water pressure gauges 5 are installed at positions such as water discharge holes with large water discharge and hydrogeological conditions complex water discharge holes, and a surface drilling hydrological monitoring substation is installed in each observation hole, such as Figure 2 At the-230m level, 4 drill hole water pressure gauges 5 are installed at positions such as water discharge holes with large water discharge and hydrogeological conditions complex water discharge holes, and a surface drilling hydrological monitoring substation is installed in each observation hole, such as Figure 3 At the-245m level, 2 drill hole water pressure gauges 5 are installed at positions such as water discharge holes with large water discharge and hydrogeological conditions complex water discharge holes, and a surface drilling hydrological monitoring substation is installed in each observation hole, such as Figure 4 At the-260m level, 3 sets of open channel flow meters 7 are installed in the water ditch at the drainage well and in the water ditch of the main water flow roadway, and 8 water warehouse water level gauges 6 are installed in 8 water warehouses, such as Figure 5 The water pressure, water temperature, flow, water level and other data collected by the drill hole water pressure gauges 5, the water warehouse water level gauges 6 and the open channel flow meters 7 are transmitted to the underground hydrological monitoring substation 8 in the duty room through the communication cable. The underground hydrological monitoring substation 8 transmits the data to the industrial computer 1 through the optical fiber ring network 4. The industrial computer 1 analyzes the collected water pressure, water temperature, flow, water level and other data to obtain real-time dynamic drill hole water pressure, water temperature information, water ditch flow, water temperature information, water warehouse water level, water temperature information. Once the data exceeds the limit value, the early warning will be triggered.

[0038] The underground hydrological monitoring substation 8 uses a mine intrinsic safety type hydrological monitoring substation KJ1072-F; the borehole water pressure gauge 5 uses a mine intrinsic safety type water pressure monitor YHY10; the sump water level gauge 6 uses a mine intrinsic safety type water level monitor TJL12; the open channel flow meter 7 uses a mine intrinsic safety type open channel flow meter YML1000; the communication cable uses a mine communication cable MHYV1*4*7*0.28; and the hydrological monitoring early warning platform uses a KJ1072 hydrological monitoring system and is installed in an industrial computer.

[0039] Through the surface borehole hydrological monitor, the borehole water pressure gauge 5, the sump water level gauge 6, and the open channel flow meter 7, multi-parameter comprehensive hydrological monitoring is used to detect the effect of the grouting curtain and simultaneously to monitor the underground hydrological conditions in real time, to achieve accurate early warning of water damage events and to effectively ensure safe operation of mine production.

Claims

1. A large-scale grouting curtain inside and outside hydrological monitoring system, characterized in that: The application relates to a surface borehole hydrological monitoring device and a downhole hydrological monitoring device, and the surface borehole hydrological monitoring device and the downhole hydrological monitoring device are connected with an industrial computer (1), the surface borehole hydrological monitoring device comprises a data collector (2) and a surface borehole hydrological monitoring substation (3), a plurality of observation holes (9) are arranged on the surface borehole, the surface borehole hydrological monitoring substation (3) is arranged in each observation hole, the surface borehole hydrological monitoring substation (3) is connected with the data collector (2) through a GPRS network, the data collector (2) is connected with the industrial computer (1), the downhole hydrological monitoring device comprises a downhole hydrological monitoring substation (8), a borehole water pressure gauge (5), a water sump water level gauge (6) and an open channel flowmeter (7), the borehole water pressure gauge (5), the water sump water level gauge (6) and the open channel flowmeter (7) are connected with the downhole hydrological monitoring substation (8) through a communication cable, the downhole hydrological monitoring substation (8) is connected with the industrial computer (1) through an optical fiber ring network (4), and the surface borehole hydrological monitoring substation (3) is arranged in the observation hole.

2. The system according to claim 1, wherein: The industrial computer (1) is arranged on the ground.

3. The system according to claim 1, wherein: The borehole water pressure gauge (5) is in a plurality of numbers and is arranged in the water discharge hole and the water outlet borehole in the well, the water sump water level gauge (6) is arranged at the water sump in the well, and the open channel flowmeter (7) is arranged in the water ditch at the water discharge well mouth and the water outlet point.

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