Tunnel deep shaft surrounding rock water seepage amount monitoring device

Abstract

The utility model relates to the technical field of tunnel construction, and particularly discloses a tunnel deep shaft surrounding rock water seepage amount monitoring device which comprises a plurality of coaxial water collecting rings arranged at intervals, the water collecting rings are all located in a deep shaft, water collecting grooves are formed in the upper sides of the water collecting rings, and connecting pipes are arranged between every two adjacent water collecting rings. The lower side of the bottommost water collecting ring is fixedly connected with a mounting beam, and the mounting beam is fixed to the top of the inner side of the tunnel. The tunnel deep vertical shaft surrounding rock water seepage amount monitoring device has the advantages that the deep vertical shaft is divided into a plurality of independent areas through the water collecting rings to collect seepage water, the seepage water can be perfectly collected, and therefore the accuracy of water seepage amount monitoring is improved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a device for monitoring the seepage of surrounding rock in deep vertical shaft tunnels. Background Technology

[0002] Tunnel shafts are underground passage structures installed vertically or nearly vertically in tunnel engineering, primarily used to connect the surface and underground tunnel spaces. The stability of the surrounding rock in deep tunnel shafts is a critical issue in underground engineering, involving multiple aspects such as geological conditions, support design, and construction methods. In existing technologies, the surrounding rock of deep shafts is affected by groundwater, which may cause water seepage into the shaft. Excessive seepage can affect the stability of the surrounding rock. Therefore, it is necessary to monitor the seepage volume of the shaft's surrounding rock. Current technologies involve installing a water collection tank at the bottom of the shaft and placing sensors inside to monitor the seepage volume. However, for deep shafts, the depth is too great; simply installing a water collection tank at the bottom is insufficient to completely collect all seepage from the shaft walls, potentially leading to inaccurate seepage monitoring. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for monitoring the seepage of surrounding rock in deep vertical shaft tunnels.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A device for monitoring water seepage in the surrounding rock of a deep vertical shaft in a tunnel includes multiple coaxial and spaced-apart water collection rings, all located inside the deep vertical shaft. A water collection trough is provided on the upper side of the water collection rings, and a connecting pipe is provided between two adjacent water collection rings. A through groove is provided where the connecting pipe is located inside the water collection trough. An installation beam is fixedly connected to the lower side of the bottommost water collection ring, and the installation beam is fixed to the top of the inner side of the tunnel.

[0006] Preferably, the mounting beam has a first cavity and a second cavity. One side of the first cavity is connected to an exhaust fan through an exhaust pipe. The second cavity is connected to the first cavity through a connecting hole. The second cavity is connected to a water collection tank through a water collection hole. A water collection tank is provided at the bottom of the second cavity, and a water level sensor is installed in the water collection tank.

[0007] Preferably, a baffle plate is installed inside the second cavity, and the baffle plate is located at the connecting hole.

[0008] Preferably, a guide plate is provided at the bottom of the inner side of the second cavity.

[0009] Preferably, a guide block is fixedly connected to the inner ring surface of each water collecting ring, and a guide hole is provided on each guide block. Multiple guide holes are coaxially arranged, and a slide rod is slidably connected in the guide hole. Multiple fixing blocks are fixedly connected to the slide rod, and a wiper ring is fixedly connected to each fixing block. The wiper ring and the water collecting ring are arranged in a one-to-one correspondence.

[0010] The beneficial effects of this utility model are as follows: The seepage monitoring device for deep vertical shafts in tunnels disclosed in this utility model divides the deep vertical shaft into multiple separate areas for collecting seepage through multiple water collection rings, which can perfectly collect seepage and thus improve the accuracy of seepage monitoring. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the basic structure of Embodiment 1 of this utility model;

[0012] Figure 2 This is a schematic diagram of the basic structure of Embodiment 2 of this utility model;

[0013] Figure 3 yes Figure 2 Usage diagram;

[0014] Figure 4 This is a schematic diagram of the basic structure of the water collection ring;

[0015] Figure 5 This is a diagram of the internal structure of the installation beam;

[0016] Figure 6 This is a diagram showing the installation status of this utility model inside a deep vertical shaft. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example 1

[0018] like Figure 1 and Figure 6As shown in this embodiment, a tunnel deep shaft surrounding rock seepage monitoring device includes multiple coaxially spaced water collection rings 1, all located within the deep shaft 200. Each water collection ring 1 has an annular water collection trough 11 on its upper side, with a sloping bottom. A connecting pipe 2 is provided between adjacent water collection rings 1, located at the lowest point of the sloping bottom of the water collection trough 11. A through groove is provided where the connecting pipe 2 is located within the water collection trough 11. A mounting beam 4 is fixedly connected to the lower side of the bottommost water collection ring 1, and the mounting beam 4 is fixed to the top of the inner side of the tunnel 100. During use, the water collection rings 1 are fixed together by the connecting pipe 2 and then fixed as a whole within the tunnel 100 by the mounting beam 4. This forms an annular skeleton structure with the water collection rings 1 and the connecting pipe 2, which also provides support for the shaft wall within the deep shaft. Simultaneously, seepage water from the deep vertical shaft wall can slide down the shaft wall into the water collection trough 11 on the upper side of the water collection ring 1, and then enter the connecting pipe 2 through the through-slot, sliding down along the connecting pipe 2 for collection. This divides the deep vertical shaft into multiple separate areas for seepage water collection. It ensures perfect collection of seepage water, thereby improving the accuracy of seepage monitoring. Example 2

[0019] See Figure 2 and Figure 3 Based on Example 1, to further facilitate seepage collection, guide blocks 3 are fixedly connected to the inner ring surface of each water collection ring 1. Each guide block 3 has a guide hole, and multiple guide holes are coaxially arranged. A slide rod 9 is slidably connected inside the guide hole, and multiple fixing blocks 6 are fixedly connected to the slide rod 9. A scraper ring 5 is fixedly connected to each fixing block 6. The scraper ring 5 is arranged in a one-to-one correspondence with the water collection ring 1. Pushing the slide rod 9 downward will also move the scraper ring 5 downward, allowing the scraper ring 5 to scrape the seepage water on the well wall downward into the water collection groove on the upper side of the water collection ring 1. This further improves the accuracy of seepage monitoring. Example 3

[0020] See Figure 5 Based on Embodiment 1, a first cavity 42 and a second cavity 43 are provided within the mounting beam 4. One side of the first cavity 42 is connected to an exhaust fan via an exhaust pipe 48 (not shown in the figure). The second cavity 43 is connected to the first cavity 42 via a connecting hole 44. The second cavity 43 is connected to the water collection tank 11 via a water collection hole 47. A water collection tank 46 is located at the bottom of the second cavity 43, and a water level sensor is installed inside the water collection tank 46. During use, the exhaust fan continuously draws air, causing the air pressure inside the first cavity 42, the second cavity 43, and the water collection tank 46 to be lower than the external air pressure. Under the action of this pressure difference, seepage water can flow more effectively into the water collection tank 46.

[0021] The second cavity 43 is equipped with a baffle plate 45, which is located at the connecting hole 44. The baffle plate 45 prevents water from entering the first cavity 42 through the connecting hole 44, thus preventing water loss to a certain extent. A guide plate 41 is provided at the bottom inner side of the second cavity 43, which facilitates the flow of water into the collection tank 46.

Claims

1. A device for monitoring seepage volume in the surrounding rock of a deep vertical shaft tunnel, characterized in that: It includes multiple coaxial and spaced water collection rings (1), all of which are located in a deep vertical shaft (200). A water collection trough (11) is provided on the upper side of each water collection ring (1), and a connecting pipe (2) is provided between two adjacent water collection rings (1). A through groove is provided in the connecting pipe (2) located in the water collection trough (11). A mounting beam (4) is fixedly connected to the lower side of the bottom water collection ring (1), and the mounting beam (4) is fixed to the top of the inner side of the tunnel (100).

2. The device for monitoring seepage in the surrounding rock of a deep vertical shaft tunnel according to claim 1, characterized in that: The mounting beam (4) is provided with a first cavity (42) and a second cavity (43). One side of the first cavity (42) is connected to an exhaust fan through an exhaust pipe (48). The second cavity (43) is connected to the first cavity (42) through a connecting hole (44). The second cavity (43) is connected to the water collection tank (11) through a water collection hole (47). A water collection tank (46) is provided at the bottom of the second cavity (43). A water level sensor is installed in the water collection tank (46).

3. The device for monitoring seepage in the surrounding rock of a deep vertical shaft in a tunnel according to claim 2, characterized in that: The second cavity (43) is equipped with a baffle plate (45), which is located at the connecting hole (44).

4. The device for monitoring seepage volume in the surrounding rock of a deep vertical shaft tunnel according to claim 2, characterized in that: The bottom of the inner side of the second cavity (43) is provided with a guide plate (41).

5. The device for monitoring seepage in the surrounding rock of a deep vertical shaft in a tunnel according to claim 1, characterized in that: Each of the water collection rings (1) has a guide block (3) fixedly connected to its inner ring surface. Each guide block (3) has a guide hole. Multiple guide holes are coaxially arranged. A slide rod (9) is slidably connected inside the guide hole. Multiple fixing blocks (6) are fixedly connected to the slide rod (9). Each fixing block (6) has a wiper ring (5) fixedly connected to it. The wiper ring (5) is arranged in a one-to-one correspondence with the water collection ring (1).

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