Water collecting and dewatering well device used in tunneling period of underground coal rock roadway of coal mine

Abstract

The utility model provides a water collecting and dewatering well device used in the tunneling period of an underground coal rock roadway of a coal mine, and aims to solve the problem of water seepage of the roadway and keep the working environment dry and clean. The device comprises a dewatering well, water seepage holes, drainage equipment and a well lid. The dewatering well is arranged on a roadway bottom plate, located below a water seepage point or located at the position where the water gushing amount is large and used for collecting water seeping from the bottom plate, the top of a roadway and the side of the roadway. The water seepage holes are formed in the inner wall of the dewatering well and connected with a roadway bottom plate and a water-bearing layer, and a filtering layer is arranged to prevent silt and particulate matter from entering the well. Drainage equipment such as a submersible pump drains water in the well to an underground drainage system through a pipeline. The well cover is of a detachable and compression-resistant structure, sundries can be prevented from falling into the well, and the water level can be observed conveniently. The device is simple in structure, convenient to install and capable of effectively controlling water accumulation in the underground coal mine and improving construction safety and working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of water prevention and control in underground coal mines, in particular to a water collection and dewatering well device used during coal and rock tunnel excavation in underground coal mines. Background Art

[0002] During the excavation of coal-rock tunnels in coal mines, water may seep from the aquifer or gush out from the tunnel floor, sides, and roof, causing the tunnel floor to remain damp for extended periods. This water infiltration not only affects the normal operation of the tunneling equipment but also poses a potential safety hazard to construction. Furthermore, water accumulation in the tunnel is detrimental to maintaining a clean underground environment and increases the difficulty of maintenance. Currently used underground drainage systems mostly remove water by installing drainage pipes or pumping stations. However, these systems struggle to effectively collect water that seeps through the floor or sides, and therefore cannot meet the actual needs of underground tunneling operations. Therefore, it is crucial to develop a drainage well device that can effectively collect and drain seepage water. Summary of the Invention

[0003] The purpose of the present invention is to provide a water collection and dewatering well device for use during coal and rock tunnel excavation in coal mines. The device can effectively collect water that penetrates from the tunnel floor, side and top, keep the tunnel dry, and reduce equipment damage and construction safety hazards.

[0004] To achieve the above object, the present invention provides a water collection and precipitation well device, which is characterized by comprising the following parts:

[0005] Dewatering well: It is set at the bottom of the roadway, below the seepage point of the aquifer or at the place where the water outflow of the roadway is large, and is used to collect water that seeps from the bottom, top and side of the roadway;

[0006] Seepage holes: Multiple seepage holes are set on the inner wall of the precipitation well. These seepage holes are connected to the aquifer through pipes, which can effectively guide the water in the aquifer into the precipitation well;

[0007] Submersible pump: The submersible pump is connected to the precipitation well and is used to discharge the collected water into the underground drainage system;

[0008] Manhole cover for precipitation well: The manhole cover for precipitation well is installed on the top of the precipitation well to prevent construction workers and debris from falling into the precipitation well, and has the function of observing the water level.

[0009] The present invention can effectively collect seepage water in the tunnel by setting up drainage wells on the tunnel floor and water outflow points, keep the tunnel floor dry, and ensure a clean excavation working environment; the device is equipped with seepage holes with a filter layer, which can effectively prevent mud and particulate matter in the aquifer from entering the drainage well, thereby ensuring the normal operation of the drainage equipment.

[0010] The present invention adopts a submersible pump as drainage equipment, which can achieve efficient drainage and avoid water accumulation in the tunnel by connecting it with the underground drainage system.

[0011] The manhole cover is designed to be detachable, which is convenient for maintenance and inspection. The manhole cover is also pressure-resistant and can withstand heavy loads in the tunnel.

[0012] The dewatering well is a prefabricated modular structure, which is convenient for rapid installation and disassembly in coal mines, reducing construction time and improving operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a structural schematic diagram of a water collection and dewatering well device used during coal and rock tunnel excavation in a coal mine. DETAILED DESCRIPTION

[0014] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1 As shown in , a water collection and dewatering well device used during coal and rock tunnel excavation in a coal mine comprises:

[0016] A drainage well (1) is provided on the tunnel floor to collect water that seeps from the floor, tunnel top and side. The size and shape of the drainage well can be customized according to actual needs, and the well wall is made of waterproof material to prevent leakage of the well structure.

[0017] The seepage hole (2) is arranged on the inner wall of the precipitation well (1) and is connected to the seepage point of the tunnel floor and the aquifer through a pipe. A filter layer is provided in the pipe to prevent sediment and particulate matter from entering the precipitation well.

[0018] The drainage equipment (3) includes a submersible pump connected to the underground drainage system through a pipeline. When the submersible pump is started, the water in the precipitation well can be discharged efficiently to avoid water accumulation.

[0019] The precipitation well cover (4) is installed on the top of the precipitation well. The precipitation well cover is a detachable structure with a pressure-resistant function to prevent debris from falling into the well. At the same time, an observation hole is provided on the well cover to facilitate real-time observation of the water level in the precipitation well.

[0020] Through the above structure, the dewatering well device of the present invention can effectively collect and discharge seepage water during the excavation of underground coal mine tunnels, keep the tunnel floor dry, improve the working environment, and enhance construction safety.

[0021] The precipitation well cover (4) is provided with four observation holes, which are circular and convenient for observing the water level in the precipitation well in real time without opening the well cover.

[0022] The dewatering well cover (4) adopts a high-strength steel structure and has good compressive resistance. It can withstand the heavy load pressure generated during the passage of equipment, vehicles or personnel in the coal mine, thereby ensuring construction safety.

[0023] The submersible pump (3) adopts a mine flameproof submersible pump. The submersible pump has a compact structure, small size, light weight, is easy to install and use, and can run in water for a long time. The submersible pump used for drainage operations in mines can be selected.

Claims

1. A water collection and dewatering well device used during coal and rock tunnel excavation in coal mines, characterized by: A dewatering well (1) is provided on the tunnel floor, below the seepage point of the aquifer, and is used to collect water that infiltrates from the floor or the top and sides of the tunnel; Seepage holes (2), each of which is arranged on the inner wall of the precipitation well (1), and the other end of which is connected to the aquifer through a seepage point on the roadway floor, and is used to guide water in the aquifer into the precipitation well; a submersible pump (3), connected to the precipitation well (1), and used to discharge water in the precipitation well (1) to an underground drainage system; The dewatering well cover (4) is installed on the top of the dewatering well (1) and is used to prevent construction workers and debris in the tunnel from falling into the dewatering well (1) and to observe the water level.

2. A water collection and dewatering well device for use during coal and rock tunnel excavation in a coal mine according to claim 1, characterized in that: The seepage holes (2) are holes with a filter layer, and the filter layer is used to prevent sediment or particles in the aquifer from entering the precipitation well (1).

3. The water collection and dewatering well device for use during coal and rock tunnel excavation in a coal mine according to claim 1, characterized in that: The (3) submersible pump is connected to the underground drainage system through a pipeline and is used to efficiently discharge the collected water.

4. The water collection and dewatering well device for use during coal and rock tunnel excavation in a coal mine according to claim 1, characterized in that: The precipitation well cover (4) is a detachable structure and has a hole for observing the water level.

5. The water collection and dewatering well device for use during coal and rock tunnel excavation in a coal mine according to claim 1, characterized in that: The dewatering well (1) is a prefabricated modular structure, which is convenient for rapid installation and disassembly in a coal mine.

6. The water collection and dewatering well device for use during coal and rock tunnel excavation in a coal mine according to claim 1, characterized in that: The dewatering well cover (4) also has a compressive resistance capability to cope with possible heavy load pressure in the tunnel.

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