Novel device for shaft seepage water interception in shaft operation and maintenance period and annular water interception system

Abstract

The utility model discloses a novel device and annular water interception system for shaft seepage water interception in the shaft operation and maintenance period, which comprises a plurality of groups of water interception bodies, each group of water interception bodies comprises a receiving groove and two drainage grooves, each drainage groove and each receiving groove are a section of circular ring body, each section of circular ring body is of a hollow cavity structure, and each section of circular ring body is of a hollow cavity structure. The upper end, the front end and the rear end are open; in each group of water intercepting bodies, the two drainage grooves are arranged at an interval, and are connected and communicated with each other through a receiving groove; a water outlet is formed in the bottom of the receiving groove; the multiple water intercepting bodies are used for being arranged in a shaft and attached to the well wall, and the multiple water intercepting bodies are sequentially and annularly connected and surround the well wall to form a circular ring body. The upper end of the cotton yarn is attached to the inner wall of an upper shaft, and the lower end of the cotton yarn extends to the drainage groove and the bearing groove and is used for draining seepage water of the shaft wall into the drainage groove and the bearing groove. By the adoption of the novel device and the construction drainage method, effective drainage of seepage water of the vertical shaft can be achieved, and the corrosion influence of well wall seepage water overflow on the structure and equipment facilities is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of vertical shaft construction technology, specifically relating to a novel device and circumferential water interception system for preventing water seepage in the shaft during the operation and maintenance period of a vertical shaft. Background Technology

[0002] Even after the shaft construction is completed, some water seepage will still occur. When the seepage is significant, the water flows down the shaft wall, continuously eroding and damaging the concrete structure over time, affecting the service life of the shaft wall. Simultaneously, the seepage will also continuously corrode equipment inside the shaft, such as wire ropes, shortening their lifespan and impacting operational safety. Personnel riding in and out of the cage will also encounter seepage and water spray, resulting in a poor working experience.

[0003] Currently, there are two main methods for dealing with well seepage: grouting and water interception. Grouting can control the seepage within a certain range, while the remaining seepage is diverted through water interception. Existing water interception devices include two main types: one involves extensive welding of intercepting channels at the bottom of the well, which is prone to corrosion due to the steel structure and requires a large amount of welding; the other uses resin anchors fixed to the inner wall of the well, which requires deep drilling and can easily damage the well, and the intercepting channels are mostly horizontal, which is not conducive to drainage. Utility Model Content

[0004] The purpose of this invention is to provide a novel device and circumferential water interception system for the interception of seepage in vertical shafts during operation and maintenance. This device can effectively drain seepage from the vertical shaft, reduce the corrosive effects of seepage on the structure and equipment, and effectively intercept water, reducing the possibility of seepage continuing to flow downwards through the gap between the device and the shaft wall. This effectively protects the unseeped shaft wall from erosion and improves the service life of the shaft structure and equipment.

[0005] The present invention adopts the following technical solution: a novel device for intercepting water seepage in a vertical shaft during operation and maintenance, comprising multiple sets of intercepting bodies, each set of intercepting bodies comprising a receiving groove and two diversion grooves, each diversion groove and receiving groove being a section of a circular ring, each section of the circular ring having a hollow cavity structure, the upper end and the front and rear ends being open.

[0006] In each set of intercepting bodies, two diversion channels are set at intervals and connected by receiving channels; a drainage outlet is opened at the bottom of the receiving channel; multiple sets of intercepting bodies are used to be installed inside the well and attached to the well wall, and multiple intercepting bodies are connected in sequence in a ring around the well wall to form a ring.

[0007] It also includes cotton yarn, the upper end of which is used to attach to the inner wall of the upper well shaft, and the lower end extends to the diversion channel and the receiving channel, which are used to divert the seepage water from the well wall into the diversion channel and the receiving channel, and then discharge it through the drain outlet.

[0008] Furthermore, the bottom plate of the diversion channel is horizontal. When installed inside the well, the bottom plates of both diversion channels are placed at an angle, with the far end higher and the near end lower. The bottom plate of the receiving channel is arc-shaped, with the arc-shaped protrusion facing downwards. The receiving channel is horizontally installed, and its inner and outer widths are consistent with the inner and outer widths of the diversion channels. The two ends of the bottom plate of the receiving channel are connected to the near ends of the bottom plates of the two diversion channels.

[0009] Furthermore, between two adjacent sets of intercepting bodies, the two diversion channels are connected by a guide channel. The guide channel is a section of a circular ring with a hollow cavity structure. Its upper end and both front and rear ends are open, and the bottom plate is arc-shaped with the arc-shaped protrusion facing upward.

[0010] Furthermore, the gaps between the inner side plates of the receiving channel, the diversion channel, and the guide channel and the well wall are filled with polyurethane. The polyurethane is used to: expand and fill the gaps when seepage flows through, thereby reducing the flow of seepage water.

[0011] Furthermore, multiple connection holes are provided on the inner side plates of the receiving groove, the diversion groove, and the guide groove. These connection holes are arranged circumferentially at intervals and are used to fix each receiving groove, the diversion groove, and the guide groove to the well wall using expansion bolts.

[0012] Furthermore, multiple hanging holes are provided on the outer side plates of each receiving trough, diversion trough, and guide trough. These hanging holes are arranged circumferentially at intervals, and wire hooks are inserted into the hanging holes. The other end of the wire hooks is hung on the pipe, which is vertically installed inside the well shaft. The receiving trough, diversion trough, and guide trough are all made of synthetic resin material.

[0013] Furthermore, a drain pipe is connected to the lower end of the bottom drain outlet of the receiving trough.

[0014] This utility model also discloses a circumferential water interception system for wellbore seepage interception during the operation and maintenance of vertical shafts, including the aforementioned novel device for wellbore seepage interception during the operation and maintenance of vertical shafts. Multiple novel devices are installed inside the wellbore and are arranged vertically at intervals. The lower end of the drain pipe of the upper novel device extends into the lower adjacent novel device, and the drain pipe of the lowest novel device extends to the bottom of the well.

[0015] The beneficial effects of this utility model are as follows: 1. The receiving groove, diversion groove, and guide groove are filled with polyurethane and form a diversion channel with cotton yarn, changing the flow direction of seepage water. This effectively reduces the overflow of seepage water from the well wall to the lower, non-seepage section, reducing the risk of water erosion and corrosion of the non-seepage section of the well wall. 2. The bottom plate of the new device is sloped, allowing seepage water to flow into the device, avoiding blockage and improving drainage. 3. The new device is made of synthetic resin material, making it lighter, more corrosion-resistant, and with a longer service life. 4. The device is further secured by connecting it to the pipe with iron wire, improving safety. Attached Figure Description

[0016] Figure 1 A schematic diagram of a novel device for intercepting water seepage in a vertical shaft during its operation and maintenance period;

[0017] Figure 2a A well wall partition diagram of a novel device for intercepting seepage in a vertical shaft during operation and maintenance;

[0018] Figure 2b A layout diagram of a novel device for intercepting water seepage in a vertical shaft during its operation and maintenance period;

[0019] Figure 3 This is a schematic diagram of the drainage channel.

[0020] Figure 4 This is a schematic diagram of the receiving groove.

[0021] Figure 5 This is a schematic diagram of the flow guide channel.

[0022] Among them: 1. Drainage channel; 4. Connection hole; 5. Hanging hole; 6. Guide channel; 7. Receiving channel; 8. Well wall; 10. Drainage pipe; 11. Expansion bolt; 12. Polyurethane; 13. Cotton yarn; 14. Iron wire; 15. Pipe. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] This utility model discloses a novel device for intercepting water seepage in vertical shafts during operation and maintenance. Figure 1 , Figure 2a and Figure 2b As shown, it includes multiple sets of water interception bodies. Each set of water interception bodies includes a receiving groove 7 and two diversion grooves 1. Each diversion groove 1 and receiving groove 7 is a section of a circular ring. Each section of the circular ring has a hollow cavity structure, and the upper end and the front and rear ends are open.

[0025] In each set of intercepting bodies, two diversion channels 1 are set at intervals and connected by receiving channels 7. A drain outlet is opened at the bottom of the receiving channel 7. The diameter of the drain outlet can be set to 6cm. Multiple sets of intercepting bodies are used to be set inside the well and attached to the well wall 8. Multiple intercepting bodies are connected in sequence in a ring around the well wall 8 to form a ring.

[0026] It also includes cotton yarn 13, the upper end of which is used to cover the upper well wall 8, and the lower end extends to the drainage channel 1 and the receiving channel 7. The cotton yarn 13 is used to form a drainage channel to guide the seepage water from the upper well wall 8 into the drainage channel 1 and the receiving channel 7. The seepage water is discharged from the drain outlet in the receiving channel 7.

[0027] When using this new device, the seepage from the well wall 8 is divided into two paths. One path flows to the polyurethane 12, where the polyurethane foams and expands upon contact with water, completely filling the gap between the inner side plate and the well wall 8, reducing the downward flow of seepage. The other path flows along the cotton yarn 13 to the receiving groove 7, the diversion groove 1, and the guide groove 6.

[0028] like Figure 3 As shown, the bottom plate of the diversion channel 1 is horizontal. When installed inside the well, the bottom plates of both diversion channels 1 are placed at an angle, with the far end higher and the near end lower. For example... Figure 4 As shown, the bottom plate of the receiving groove 7 is arc-shaped, and the arc-shaped protrusion faces downward; the receiving groove 7 is set horizontally, and the inner and outer widths of the receiving groove 7 are consistent with the inner and outer widths of the diversion groove 1. The two ends of the bottom plate of the receiving groove 7 are connected to the near ends of the bottom plates of the two diversion grooves 1.

[0029] like Figure 5 As shown, between two adjacent sets of intercepting bodies, the two diversion channels 1 are connected by a guide channel 6. The guide channel 6 is a section of a circular ring. The circular ring has a hollow cavity structure. Its upper end and both front and rear ends are open. The bottom plate is arc-shaped, and the arc-shaped protrusion faces upward.

[0030] The gap between the inner side plate of the receiving groove 7, the diversion groove 1 and the guide groove 6 and the well wall 8 is filled with polyurethane 12. The polyurethane 12 is used to: expand and fill the gap when seepage flows through, thereby reducing the flow of seepage water.

[0031] Multiple connection holes 4 are provided on the inner side plates of the receiving groove 7, the diversion groove 1 and the guide groove 6. The multiple connection holes 4 are arranged in a circumferential interval and are used to fix each receiving groove 7, the diversion groove 1 and the guide groove 6 to the well wall 8 by means of expansion bolts 11.

[0032] Multiple hanging holes 5 are provided on the outer side plates of each receiving groove 7, diversion groove 1, and guide groove 6. The multiple hanging holes 5 are arranged circumferentially at intervals. Wire hooks 14 are inserted into the hanging holes 5, and the other end of the wire hooks 14 is hung on the pipe 15, which is vertically installed inside the well shaft. The use of wire hooks 14 to hang on the pipe 15 avoids the possibility of the new device falling due to the failure of the expansion bolts.

[0033] The inner and outer widths of the receiving groove 7 are consistent with those of the diversion groove 1, such as a bottom width of 10cm. The two ends of the bottom plate of the receiving groove 7 are connected to the near ends of the bottom plates of the two diversion grooves 1. The inner and outer plates of the receiving groove 7 are connected to the inner and outer plates of the two diversion grooves 1. The front and rear ends of the bottom plate of the guide groove 6 are connected to the ends of the bottom plates of the two diversion grooves 1. The inner and outer plates of the guide groove 6 are connected to the inner and outer plates of the two diversion grooves 1, respectively. All plates are connected using AB glue.

[0034] The thickness of the inner panel, outer panel, and bottom panel is approximately 5mm. The height of the inner panel is greater than that of the outer panel; the inner panel is 20cm higher than the outer panel, but if the outer panel is 10cm higher, then the position of the connecting hole 4 on the inner panel is higher than the height of the hanging hole 5 on the outer panel. Generally, the height of the connecting hole 4 is roughly the same as the height of the outer panel.

[0035] A drain pipe 10 is connected to the lower end of the drain outlet at the bottom of the aforementioned receiving trough 7. The drain pipe 10 is made of PVC and is connected to the lower end of the receiving trough 7 using AB glue. The lower section of the drain pipe 10 is fixed to the well wall 8 using U-shaped clips. The diameter of the drain pipe 10 can be selected as 8cm. If only one new device is installed in the well, the lower end of the drain pipe 10 of the new device leads directly to the bottom of the well, and the seepage water is eventually discharged outside the well through the water tank at the bottom of the well. If multiple new devices are installed, the following water interception system is used.

[0036] This utility model also discloses a circumferential water interception system for wellbore seepage interception during the operation and maintenance of a vertical shaft, including multiple novel devices for wellbore seepage interception during the operation and maintenance of a vertical shaft. The multiple novel devices are all installed inside the wellbore and are arranged vertically at intervals. The lower end of the drain pipe 10 of the upper novel device extends into the lower adjacent novel device, and the drain pipe 10 of the lowest novel device extends to the bottom of the well.

[0037] The above-mentioned construction and drainage method for a circumferential water interception system for preventing seepage in a vertical shaft during operation and maintenance includes the following steps:

[0038] Step 1: Install multiple new devices inside the well shaft, arranged vertically at intervals. Fill the space between the inner plate of each new device and the well wall 8 with polyurethane 12. Cover the well wall 8 above the new devices with the upper end of cotton yarn 13, and extend the lower end to the diversion channel 1, the guide channel 6 and the receiving channel 7. The cotton yarn 13 serves as a diversion channel, allowing water seeping from the well wall 8 to flow along the cotton yarn 13 to the diversion channel 1, the guide channel 6 and the receiving channel 7.

[0039] Step 2: The seepage water from well wall 8 flows to polyurethane 12, where it expands and completely fills the gap between the inner side plate and well wall 8. A second path flows along cotton yarn 13 to the receiving groove 7, the diversion groove 1, and the guide groove 6. The seepage water flows down the guide groove 6 towards the diversion grooves 1 at both ends, into the receiving groove 7, and then into the adjacent lower novel device via the drain pipe 10. The lowest novel device guides the collected seepage water to the bottom of the well via the drain pipe 10, and finally discharges it outside the well through the bottom water tank. The seepage water flowing along cotton yarn 13 from well wall 8 reduces the downward flow of seepage water along well wall 8, reducing the risk of water erosion and corrosion of the non-seepage section of the well wall.

Claims

1. A novel device for intercepting water seepage in a vertical shaft during operation and maintenance, characterized in that, It includes multiple sets of water interception bodies. Each set of water interception bodies includes a receiving groove (7) and two diversion grooves (1). Each diversion groove (1) and receiving groove (7) is a section of annular body. Each section of annular body has a hollow cavity structure, and the upper end and the front and rear ends are open. In each group of water intercepting bodies, two diversion channels (1) are spaced apart and connected by the receiving channel (7); the bottom of the receiving channel (7) is provided with a drain outlet; multiple groups of water intercepting bodies are used to be installed inside the well and attached to the well wall (8); multiple water intercepting bodies are connected in sequence in a circumferential manner and form a ring around the well wall (8); It also includes cotton yarn (13), the upper end of which is used to cover the upper well wall (8) and the lower end extends to the drainage groove (1) and the receiving groove (7). The cotton yarn (13) is used to form a drainage channel to guide the seepage water from the upper well wall (8) into the drainage groove (1) and the receiving groove (7).

2. The novel device for intercepting wellbore seepage during the operation and maintenance period of a vertical shaft as described in claim 1, characterized in that, The bottom plate of the diversion channel (1) is horizontal. When it is installed in the well, the bottom plates of the two diversion channels (1) are placed at an inclination, with the far end higher and the near end lower. The bottom plate of the receiving channel (7) is arc-shaped, with the arc-shaped protrusion facing downward. The receiving channel (7) is horizontally set, and the inner and outer widths of the receiving channel (7) are consistent with the inner and outer widths of the diversion channels (1). The two ends of the bottom plate of the receiving channel (7) are connected to the near ends of the bottom plates of the two diversion channels (1).

3. A novel device for intercepting seepage in a vertical shaft during operation and maintenance, as described in claim 2, characterized in that, Between two adjacent sets of intercepting bodies, the two diversion channels (1) are connected by a guide channel (6). The guide channel (6) is a section of a circular ring. The circular ring has a hollow cavity structure. Its upper end and both front and rear ends are open. The bottom plate is arc-shaped, and the arc-shaped protrusion faces upward.

4. A novel device for intercepting seepage in a vertical shaft during operation and maintenance, as described in claim 3, characterized in that, The gap between the inner side plate of the receiving groove (7), the diversion groove (1) and the guide groove (6) and the well wall (8) is filled with polyurethane (12), which is used to: expand and fill the gap when seepage water flows through, thereby reducing the flow of seepage water.

5. A novel device for intercepting wellbore seepage during the operation and maintenance period of a vertical shaft as described in claim 4, characterized in that, Multiple connection holes (4) are provided on the inner side plates of the receiving groove (7), the diversion groove (1) and the guide groove (6). The multiple connection holes (4) are arranged circumferentially at intervals for fixing each of the receiving groove (7), the diversion groove (1) and the guide groove (6) to the well wall (8) by means of expansion bolts (11).

6. A novel device for intercepting seepage in a vertical shaft during operation and maintenance, as described in claim 5, characterized in that, Multiple hanging holes (5) are provided on the outer side plates of each of the receiving groove (7), diversion groove (1) and guide groove (6). The multiple hanging holes (5) are arranged circumferentially at intervals. Wire hooks (14) are inserted into the hanging holes (5). The other end of the wire hooks (14) is hung on the pipe. The pipe is vertically installed inside the well shaft.

7. A novel device for intercepting wellbore seepage during the operation and maintenance period of a vertical shaft as described in claim 6, characterized in that, The bottom of the receiving groove (7) is connected to a drain pipe (10).

8. A novel device for intercepting seepage in a vertical shaft during operation and maintenance, as described in claim 7, characterized in that, The receiving groove (7), the diversion groove (1) and the guide groove (6) are all made of synthetic resin material.

9. A circumferential water interception system for wellbore seepage interception during the operation and maintenance period of a vertical shaft, comprising a novel device for wellbore seepage interception during the operation and maintenance period of a vertical shaft as described in any one or more of claims 1-8, characterized in that, Multiple of the novel devices are installed inside the well shaft and are arranged at intervals. The lower end of the drain pipe (10) of the upper novel device extends into the lower adjacent novel device, and the drain pipe (10) of the lowest novel device extends to the bottom of the well.

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