Dirt-cleaning and flow-dividing device for cavern excavation

Abstract

The utility model belongs to the technical field of tunnel construction engineering, and discloses a cavern excavation sewage disposal flow dividing device which comprises a plurality of water collecting grooves and further comprises a plurality of installation blocks, a first connecting pipe, a second connecting pipe and a telescopic pipe, the installation blocks are installed on a cavern wall, an opening of each water collecting groove faces upwards, one side of the opening is attached to the cavern wall, and the other side of the opening faces upwards. The multiple water collecting grooves are sequentially connected through first connecting pipes to form multiple water collecting pipes with different heights, the multiple water collecting pipes are different in height and obliquely extend downwards towards the drainage ditch, the ends of every two adjacent water collecting pipes are sleeved with second connecting pipes, and every two adjacent second connecting pipes are connected through a telescopic pipe. And the first connecting pipe and the second connecting pipe are fixedly connected with the mounting block. Water from different sources can be sequentially guided and discharged in a layered mode, pollution-free tunnel gushing water and surrounding rock seepage water are prevented from being mixed with construction waste water, source diversion and classified treatment are facilitated, the total treatment capacity is reduced, and the stability and efficiency of system operation are improved.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction engineering technology, and in particular relates to a tunnel excavation and sewage diversion device. Background Technology

[0002] During the construction of tunnels and underground caverns, two main types of wastewater are often generated: tunnel inflow and surrounding rock seepage, and construction wastewater. Tunnel inflow and surrounding rock seepage are natural water sources resulting from the fracturing of underground rock and loosening during excavation. These are usually unpolluted natural waters, with large volumes but significant fluctuations. Construction wastewater, primarily generated during earthwork excavation, contains suspended solids, petroleum hydrocarbons, and other pollutants, resulting in poor water quality. To minimize the impact of this wastewater on the surrounding environment, effective treatment is essential, ensuring that discharge meets environmental standards. However, existing wastewater treatment methods have a series of problems that urgently need improvement.

[0003] Currently, the treatment of tunnel wastewater typically involves collecting and treating a mixture of tunnel inflow, seepage from surrounding rock, and construction wastewater. This approach presents several significant problems. First, the fluctuating volumes of inflow and seepage, coupled with variations in construction wastewater generation depending on the construction progress, result in an unstable and highly volatile overall wastewater treatment volume. This not only increases the difficulty of wastewater treatment but also forces the treatment equipment to cope with this unstable flow, leading to low treatment efficiency. Second, existing wastewater treatment equipment requires the processing of large volumes of wastewater, thus occupying a large area and increasing land demands at construction sites. Furthermore, the large scale of the equipment significantly increases construction and operating costs. In addition, existing wastewater treatment systems typically require long hydraulic retention times to complete treatment, which not only burdens the equipment but also increases energy consumption, further reducing treatment efficiency. Finally, the large and volatile wastewater volume places a high load on existing equipment, resulting in a high failure rate and frequent maintenance, further increasing operating costs. Utility Model Content

[0004] This utility model provides a tunnel excavation and sewage diversion device to solve existing technical problems.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows:

[0006] A tunnel excavation and sewage diversion device includes multiple water collection troughs, multiple mounting blocks, a first connecting pipe, a second connecting pipe, and a telescopic pipe. The mounting blocks are installed on the tunnel wall. The openings of each water collection trough face upwards and one side of the opening is flush with the tunnel wall. The multiple water collection troughs are connected sequentially by the first connecting pipe to form multiple water collection pipes of different heights. The multiple water collection pipes are of different heights and all extend downwards towards the drainage ditch. The ends of two adjacent water collection pipes are fitted with second connecting pipes. Two adjacent second connecting pipes are connected by a telescopic pipe. The first connecting pipe and the second connecting pipe are fixedly connected to the mounting blocks.

[0007] As a further improvement to the above technical solution:

[0008] A water guide plate is connected to the inner wall on one side of the opening of each of the water collection tanks. The end of the water guide plate away from the water collection tank extends upward and fits against the wall of the hole.

[0009] The water guide plate is a rubber sheet, and multiple rubber sheets are connected to each of the water collection tanks. The multiple rubber sheets are distributed along the length of the water collection tank and are connected sequentially at the bottom.

[0010] The cross-section of the water collection tank is three-quarters of a circle.

[0011] Leak-proof rubber rings are provided between the first connecting pipe and the water collection tank, between the second connecting pipe and the water collection tank, and between the second connecting pipe and the telescopic pipe.

[0012] The axes of the two ports of the second connecting pipe are perpendicular to each other.

[0013] The outlet of the second connecting pipe is equipped with a fixed joint, and the telescopic pipe is threadedly connected to the fixed joint.

[0014] The mounting block is an iron sheet and is fixed to the hole wall with screws. Magnetic strips are connected to the first and second connecting pipes and are connected to the mounting block by the attraction of the magnetic strips.

[0015] The mounting block has multiple mounting holes, and the screw passes through the mounting holes.

[0016] The mounting block has an arc surface, which is in contact with the magnetic strip.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] By combining multiple water collection tanks, mounting blocks, first connecting pipes, second connecting pipes, and expansion pipes, multiple water collection pipes of varying heights, inclined towards the drainage ditch, are formed. This effectively solves the problems of low treatment efficiency and heavy equipment load caused by large fluctuations in water volume in existing wastewater treatment systems. The water collection tanks are connected sequentially, allowing water from different sources to be guided and discharged in a layered and orderly manner. This avoids the mixing of harmless tunnel water inflow and surrounding rock seepage with construction wastewater, facilitating source diversion and classified treatment, reducing the total treatment volume, lowering equipment size and energy consumption, and improving the stability and efficiency of system operation. Clean water and wastewater can be collected separately; clean water does not require treatment, reducing the amount of water treated and thus reducing treatment costs. After treatment, the device can be transported to the next cavern for continued operation, saving land while improving treatment efficiency and reducing treatment costs. When not in operation, the first four parts can be easily disassembled; when in operation, they can be assembled into a single structure, facilitating transportation and installation, and enabling the recycling of the equipment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the tunnel excavation and sewage diversion device;

[0021] Figure 2 This is a schematic diagram of the water collection tank.

[0022] Figure 3 This is a schematic diagram of the second connecting pipe;

[0023] Figure 4 This is a schematic diagram of the construction and installation structure of the sewage diversion device for tunnel excavation;

[0024] Legend:

[0025] 1. Water collection tank; 11. Water guide plate; 2. Mounting block; 3. First connecting pipe; 4. Second connecting pipe; 41. Fixed joint; 5. Telescopic pipe; 6. Water collection pipe; 7. Leak-proof rubber ring; 8. Magnetic strip; 100. Drainage ditch. Detailed Implementation

[0026] To facilitate understanding of this utility model, the following description will be provided in more comprehensive and detailed manner with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0027] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0028] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0029] Example: Figures 1-4 As shown, the tunnel excavation and wastewater diversion device of this embodiment includes multiple water collection tanks 1, multiple mounting blocks 2, a first connecting pipe 3, a second connecting pipe 4, and a telescopic pipe 5. The mounting blocks 2 are installed on the tunnel wall. The openings of each water collection tank 1 face upwards, with one side of the opening fitting against the tunnel wall. The multiple water collection tanks 1 are sequentially connected by the first connecting pipes 3 to form multiple water collection pipes 6 of different heights. These water collection pipes 6 are of different heights and all extend downwards towards the drainage ditch 100. The ends of adjacent water collection pipes 6 are fitted with second connecting pipes 4, and adjacent second connecting pipes 4 are connected by telescopic pipes 5. The first connecting pipe 3 and the second connecting pipe 4 are fixedly connected to the mounting blocks 2. Through the combination of multiple water collection tanks 1, mounting blocks 2, first connecting pipe 3, second connecting pipe 4, and telescopic pipe 5, multiple water collection pipes 6 of different heights and inclined towards the drainage ditch 100 are formed, effectively solving the problem of low treatment efficiency and heavy equipment load caused by large fluctuations in water volume in existing wastewater treatment systems. Each collection tank 1 is connected sequentially, allowing water from different sources to be guided and discharged in a stratified and orderly manner. This prevents the mixing of harmless tunnel water inflow and surrounding rock seepage with construction wastewater, facilitating source diversion and classified treatment, reducing the total treatment volume, equipment size and energy consumption, and improving system stability and efficiency. Clean water and wastewater can be collected separately; clean water requires no treatment, reducing the amount of water treated and thus lowering treatment costs. After treatment, the device can be transported to the next cavern for continued operation, saving land while improving treatment efficiency and reducing costs. When not in operation, the first four parts can be easily disassembled; when in operation, they can be assembled into a single structure, facilitating transportation and installation while enabling equipment recycling.

[0030] In this embodiment, a water guide plate 11 is connected to the inner wall of one side of the opening of each water collection tank 1. The end of the water guide plate 11 away from the water collection tank 1 extends upward and fits against the tunnel wall. The water guide plate 11 can effectively guide seepage water on the tunnel wall into the water collection tank 1, effectively collecting clean water on the tunnel wall, including seepage water and gushing water, preventing seepage water from flowing freely on the tunnel wall surface and reducing interference with the construction environment. At the same time, the water guide plate 11 fits against the tunnel wall, enhancing the collection efficiency and helping to achieve rapid and orderly diversion of gushing and seepage water, further improving the effect of separating clean and dirty water and reducing the burden of subsequent treatment.

[0031] In this embodiment, the water guide plate 11 is a rubber sheet, and multiple rubber sheets are connected to each water collection tank 1. These rubber sheets are distributed along the length of the water collection tank 1 and are connected sequentially at their bottoms. The bottom of the rubber sheet is integrally formed, while the upper part is evenly distributed into multiple small rectangular strips. Given the poor uniformity of the cavern wall, the multiple rubber sheets possess good flexibility and conformability. Similar to small brushes, the rubber sheets can tightly adhere to the irregular cavern wall surface, further improving the collection efficiency of seepage and gushing water. Simultaneously, the rubber sheets are easy to install, corrosion-resistant, and have a long service life, making them suitable for the humid and complex environmental conditions of underground caverns. This helps improve the overall stability and reliability of the device, reducing maintenance frequency and operating costs.

[0032] In this embodiment, the cross-section of the water collection tank 1 is three-quarters of a circle. The water collection tank 1 improves water collection efficiency, allowing seepage water to naturally flow into the tank under gravity, reducing water stagnation and overflow. Simultaneously, this structural shape facilitates processing and installation, possesses good structural strength and flow guiding performance, and can effectively adapt to curved surfaces of the tunnel walls, enhancing the stability and drainage efficiency of the overall drainage system. If the opening is too large, the collected water will easily flow out of the water collection tank 1; if the opening is too small, the amount of water collected by the water collection tank 1 will be affected.

[0033] In this embodiment, leak-proof rubber rings 7 are provided between the first connecting pipe 3 and the water collection tank 1, between the second connecting pipe 4 and the water collection tank 1, and between the second connecting pipe 4 and the telescopic pipe 5. The leak-proof rubber rings 7 effectively prevent water leakage at the connection points, ensuring the system's sealing performance and stable operation.

[0034] In this embodiment, the axes of the two interfaces of the second connecting pipe 4 are perpendicular to each other. This enables a turning connection between the pipes, allowing the water collection pipe 6 to be flexibly arranged according to the design direction, adapting to the complex spatial structure of the cavern, and improving the layout flexibility of the drainage pipes and the adaptability of the overall system.

[0035] In this embodiment, the outlet of the second connecting pipe 4 is provided with a fixed joint 41, and the telescopic pipe 5 is threadedly connected to the fixed joint 41. This not only ensures a stable seal between the pipes and prevents leakage, but also facilitates the installation and disassembly of the telescopic pipe 5, improving the system's maintenance convenience and flexibility.

[0036] In this embodiment, the mounting block 2 is an iron sheet fixed to the cavity wall with screws. Magnetic strips 8 are connected to the first connecting pipe 3 and the second connecting pipe 4, and are connected to the mounting block 2 through the attraction of the magnetic strips 8. This achieves a stable fixation between the pipe and the cavity wall, while facilitating the rapid installation and disassembly of the pipe, improving construction efficiency and maintenance convenience, and avoiding the problem of excessive space occupation by traditional fixing methods.

[0037] In this embodiment, the mounting block 2 is provided with multiple mounting holes, through which screws pass. This enhances the fixing firmness and stability of the mounting block 2, ensures reliable support for the water collection tank 1 and connecting pipes, and helps improve the safety and durability of the overall device.

[0038] In this embodiment, the mounting block 2 has an arc surface that fits into the magnetic strip 8. This allows the magnetic strip 8 to adhere more tightly to the mounting block 2, improving the stability and firmness of the connection and preventing loosening caused by uneven tunnel walls, thereby enhancing the overall reliability and durability of the device.

[0039] According to the technical content of this embodiment, the construction method includes the following steps:

[0040] First, multiple mounting blocks 2 are arranged and fixed on the inner wall of the tunnel according to the design requirements. The mounting blocks 2 are iron sheets, fixed to the tunnel wall by screws through the mounting holes to ensure stability and reliability. Next, multiple water collection tanks 1 are connected sequentially with their openings facing upwards and their opening sides against the tunnel wall, forming multiple water collection pipes 6 of different heights, inclined towards the drainage ditch 100. Second connecting pipes 4 are sleeved at the ends of adjacent water collection pipes 6. The two interface pipe axes of the second connecting pipe 4 are perpendicular to each other, and adjacent second connecting pipes 4 are connected by telescopic pipes 5, achieving flexible pipe connection and length adjustment. To ensure a tight seal at the interfaces, leak-proof rubber rings 7 are installed between the first connecting pipe 3 and the water collection tank 1, between the second connecting pipe 4 and the water collection tank 1, and between the second connecting pipe 4 and the telescopic pipe 5.

[0041] Multiple rubber guide vanes 11 are installed on the inner wall of one side of the opening of each water collection tank 1. The end of the guide vane away from the water collection tank faces upward and fits against the hole wall, resembling a small brush. This allows it to closely adhere to the uneven surface of the hole wall, improving the collection efficiency of seepage and gushing water. Magnetic strips 8 are connected to the first connecting pipe 3 and the second connecting pipe 4. The magnetic strips are magnetically attracted to the iron sheet on the mounting block 2, facilitating the installation, disassembly, and adjustment of the pipe assembly. The outlet of the second connecting pipe 4 is equipped with a fixed joint 41. The telescopic pipe 5 is connected to the fixed joint 41 by threads, further ensuring a firm connection and easy adjustment.

[0042] After assembly, by adjusting the length of the telescopic pipe 5 and the pipe inclination, wastewater can flow smoothly to the drainage ditch 100, achieving a layered and diverted flow effect in the collection tanks at different heights, effectively separating clean and dirty water. The collected clean water will ultimately flow outside the hole for direct discharge or landscaping. The collected wastewater will be treated to meet standards before reuse or discharge. After the system is put into operation, the leak-proof rubber ring 7 and all connection parts should be checked regularly, and damaged components should be maintained and replaced in a timely manner. When not in operation, the device can be easily disassembled for convenient transportation and recycling, thereby improving installation efficiency and equipment flexibility.

Claims

1. A tunnel excavation and wastewater diversion device, comprising multiple water collection tanks (1), characterized in that, It also includes multiple mounting blocks (2), a first connecting pipe (3), a second connecting pipe (4) and a telescopic pipe (5). Multiple mounting blocks (2) are installed on the cave wall. The openings of each water collection trough (1) are set facing upwards and one side of the opening is attached to the cave wall. Multiple water collection troughs (1) are connected in sequence through the first connecting pipe (3) to form multiple water collection pipes (6) of different heights. The multiple water collection pipes (6) have different heights and all extend downwards towards the drainage ditch (100). The ends of two adjacent water collection pipes (6) are fitted with second connecting pipes (4). Two adjacent second connecting pipes (4) are connected by telescopic pipes (5). The first connecting pipe (3) and the second connecting pipe (4) are fixedly connected to the mounting blocks (2).

2. The tunnel excavation and sewage diversion device according to claim 1, characterized in that, A water guide plate (11) is connected to the inner wall on the opening side of each of the water collection tanks (1). The end of the water guide plate (11) away from the water collection tank (1) extends upward and fits against the wall of the hole.

3. The tunnel excavation and sewage diversion device according to claim 2, characterized in that, The water guide plate (11) is a rubber sheet. Multiple rubber sheets are connected to each water collection tank (1). The multiple rubber sheets are distributed along the length of the water collection tank (1) and are connected in sequence at the bottom.

4. The tunnel excavation and sewage diversion device according to claim 1, characterized in that, The cross-section of the water collection tank (1) is three-quarters of a circle.

5. The tunnel excavation and sewage diversion device according to claim 1, characterized in that, Leak-proof rubber rings (7) are provided between the first connecting pipe (3) and the water collection tank (1), between the second connecting pipe (4) and the water collection tank (1), and between the second connecting pipe (4) and the telescopic pipe (5).

6. The tunnel excavation and sewage diversion device according to claim 1, characterized in that, The axes of the two ports of the second connecting pipe (4) are perpendicular to each other.

7. The tunnel excavation and sewage diversion device according to claim 1, characterized in that, The outlet of the second connecting pipe (4) is provided with a fixed joint (41), and the telescopic pipe (5) is threadedly connected to the fixed joint (41).

8. The tunnel excavation and wastewater diversion device according to any one of claims 1-7, characterized in that, The mounting block (2) is an iron sheet and is fixed to the hole wall with screws. The first connecting pipe (3) and the second connecting pipe (4) are connected with magnetic strips (8) and are connected to the mounting block (2) by the attraction of the magnetic strips (8).

9. The tunnel excavation and sewage diversion device according to claim 8, characterized in that, The mounting block (2) has multiple mounting holes, and the screw passes through the mounting holes.

10. The tunnel excavation and sewage diversion device according to claim 8, characterized in that, The mounting block (2) has an arc surface, which is in contact with the magnetic strip (8).

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