Complex environment tunnel remote water detection test device and method thereof

Abstract

The invention relates to the technical field of tunnel remote water detection tests, and particularly discloses a complex environment tunnel remote water detection test method, which comprises the following steps: when a treatment device in a cabin of a shield tunneling machine corresponds to a water detection part remained in a simulated soil body, inserting a treatment pipe from the treatment device, connecting the treatment pipe with the water detection part, and exhausting air from the treatment pipe; water in the simulated soil body is discharged through the water detection part and the treatment pipe, concrete grout is injected into the treatment pipe after the water is completely discharged, so that grouting reinforcement is conducted on the part, where the water exists, of the simulated soil body, and when the treatment pipe works, the shield tunneling machine continuously works forwards, and the treatment device moves backwards relative to the shield tunneling machine; therefore, the treatment device and the water detection part are kept in a relatively static state. The method has the beneficial effects that compared with the prior art, the shield tunneling machine does not need to be in a stopped state for a long time, in the treatment process, treatment on underground water is not affected while the shield tunneling machine continuously advances, and the construction efficiency can be improved compared with the prior art.

Description

Technical Field

[0001] This invention relates to the field of remote water exploration testing technology for tunnels, and in particular to a method for remote water exploration testing in tunnels in complex environments. Background Technology

[0002] To maximize safety, improve project efficiency, and reduce overall risks, remote water detection is necessary during tunnel construction in complex environments. Current technology involves installing advanced radar on the tunnel boring machine (TBM) to detect the presence of water below the tunnel's path. If water is found, reinforcement is required to prevent subsidence and subsequent tunnel displacement. However, long-term construction experience has shown that radar detection alone is inaccurate. Therefore, current technology typically stops the TBM when radar detects potential water ahead, then inserts a water-detecting pipe at an angle downwards in front of the TBM to confirm its presence. If no water is found, the pipe is removed, and the TBM continues normal operations. If water is found, work must be stopped again, the water extracted through the pipe, and grouting reinforced the area. While this method ensures safety during construction, it necessitates stopping the TBM during water treatment, slowing down tunnel excavation. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a method for remote water exploration testing in tunnels under complex environments.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A method for remote water exploration testing in tunnels under complex environments includes the following steps: Step 1: The simulated tunnel boring machine excavates in the simulated soil. When remote water detection is required, a water detection hole is drilled from the front end of the tunnel boring machine base and a water detection pipe is inserted into the water detection hole. The water detection pipe can be used to detect whether there is water at the bottom of the geology ahead. Step 2: The water detection pipe consists of a water detection section at the front end and a process section at the rear end. The water detection section and the process section are detachably connected. If no water is found at the bottom of the geological formation ahead, the water detection section and the process section are removed together, and the tunnel boring machine continues to work forward. If water is found at the bottom of the geological formation ahead, only the process section is removed, and the tunnel boring machine continues to work forward. Step 3: When the treatment device inside the tunnel boring machine (TBM) aligns with the water detection unit remaining in the simulated soil, a treatment pipe is inserted from the treatment device and connected to the water detection unit. Air is pumped out of the treatment pipe, causing the water in the simulated soil to be discharged through the water detection unit and the treatment pipe. After the water is completely discharged, concrete grout is injected into the treatment pipe to reinforce the areas of the simulated soil where water exists. While the treatment pipe is working, the TBM continues to move forward, while the treatment device moves backward relative to the TBM, ensuring that the treatment device and the water detection unit remain relatively stationary. After the grouting is completed, the treatment pipe is removed, and the treatment device is quickly moved forward to its initial position.

[0005] Preferably, in step three, when the treatment device moves forward rapidly to its initial position, the excavating cutter in the treatment device will excavate a reinforcement trench in the soil, and the tail end of the water exploration part is located at the center of the reinforcement trench. At the same time, a steel cage is placed in the reinforcement trench. After the shield tunnel segments are installed and grouting is performed later, a reinforcement block is formed in the reinforcement trench, and the tail end of the water exploration part is fixed to the reinforcement block.

[0006] The present invention also discloses a remote water detection test device for tunnels in complex environments, including a test box, a shield machine launching sleeve on one side of the test box, a simulated shield machine inside the shield machine launching sleeve, an opening in the shield machine cabin with a treatment device at the opening, simulated soil inside the test box, a water injection pipe buried in the simulated soil, the water injection pipe extending to the outside of the test box, and a pressure test device on the top of the test box.

[0007] Preferably, the treatment device includes a sliding plate that slides horizontally back and forth on the inner wall of the tunnel boring machine's cabin. A push-pull device is installed on the inner wall of the tunnel boring machine's cabin to drive the sliding plate to slide. The sliding plate is provided with a clearance groove.

[0008] Preferably, the slide plate is provided with a cutting groove, and a grooving cutter is slidably connected in the cutting groove. A first hydraulic cylinder is mounted on the slide plate, and the first hydraulic cylinder is used to drive the grooving cutter to slide up and down in the cutting groove.

[0009] Preferably, a placement groove is provided on one side of the slide plate, which is used to place the reinforcing cage. A clamping plate is detachably fixedly connected to one side of the placement groove. The clamping plate is used to clamp and fix the reinforcing cage. A second hydraulic cylinder is installed on the slide plate. The telescopic end of the second hydraulic cylinder is fixedly connected to a push plate, which is located in the placement groove.

[0010] The beneficial effects of this invention are as follows: The remote water detection test method for tunnels in complex environments provided by this invention can detect whether there is water at the bottom of the geological formation ahead using a water detection pipe. If no water is detected at the bottom of the geological formation ahead, the water detection section and the process section are removed together, and the tunnel boring machine continues to work forward. If water is detected at the bottom of the geological formation ahead, the process section is separated from the water detection section, and only the process section is removed, while the tunnel boring machine continues to work forward. Compared with the prior art, it is not necessary to keep the tunnel boring machine in a stopped state for a long time. During the treatment process, the tunnel boring machine continues to move forward without affecting the treatment of groundwater. Compared with the prior art, it can improve construction efficiency. Attached Figure Description

[0011] Figure 1 This is a basic structural diagram of a remote water exploration test device for tunnels in complex environments provided by the present invention; Figure 2 This is a diagram of the water exploration process in this invention; Figure 3 This is a process diagram of the treatment method in this invention; Figure 4 yes Figure 3 The main view; Figure 5 yes Figure 3 Usage status diagram; Figure 6 This is a structural diagram of the treatment device; Figure 7 This is a cross-sectional view of the treatment device. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 and not intended to limit the invention.

[0013] like Figures 1-7As shown in this embodiment, a remote water detection test device for tunnels in complex environments includes a test chamber 100. A shield machine launching sleeve 200 is provided on one side of the test chamber 100. The shield machine launching sleeve 200 is existing technology and will not be described in detail here. A simulated shield machine 600 is installed inside the shield machine launching sleeve 200. The simulated shield machine 600 is customized according to a scaled-down version of existing shield machines. A simulated soil mass 500 is provided inside the test chamber 100. The simulated soil mass 500 is filled and compacted in layers of simulated soil. During the compaction process, sensors are embedded within the simulated soil mass 500. A water injection pipe 300 is embedded within the simulated soil mass 500, extending to the outside of the test chamber 100. Water is injected into the simulated soil mass 500 through the water injection pipe 300, thereby simulating the water content of the soil beneath the tunnel. The test chamber 100 is equipped with a pressure testing device 400 on top. The pressure testing device 400 is used to apply pressure to the simulated soil 500. This is existing technology and will not be described in detail here.

[0014] The bottom of the tunnel boring machine 600's cabin has an opening, and a control device 1 is installed at the opening. The control device 1 includes a sliding plate 11, which slides horizontally back and forth on the inner wall of the tunnel boring machine 600's cabin. A push-pull device 19 is installed on the inner wall of the tunnel boring machine 600's cabin. The push-pull device 19 is an electric telescopic rod or a hydraulic cylinder, and is used to drive the sliding plate 11 to slide. The sliding plate 11 has a clearance groove 12. The sliding plate 11 has a cutter groove 13, and a cutting cutter 14 is slidably connected in the cutter groove 13. A first hydraulic cylinder 15 is installed on the sliding plate 11, and the first hydraulic cylinder 15 is used to drive the cutting cutter 14 to slide up and down in the cutter groove 13. A placement groove is provided on one side of the slide plate 11, in which a reinforcing cage 17 is placed. A clamping plate 16 is detachably fixedly connected to one side of the placement groove. The detachable connection method of the clamping plate 16 is existing technology and will not be described in detail here. The clamping plate 16 is used to clamp and fix the reinforcing cage 17. A second hydraulic cylinder 18 is mounted on the slide plate 11. The telescopic end of the second hydraulic cylinder 18 is fixedly connected to a push plate 10. The push plate 10 is located in the placement groove. The second hydraulic cylinder 18 pushes the push plate 10 downward, and the push plate 10 can push the reinforcing cage 17 downward.

[0015] This embodiment discloses a test method for remote water exploration in tunnels with complex environments using the aforementioned remote water exploration test device. The test method includes the following steps: Step 1: The simulated tunnel boring machine 600 is installed inside the tunnel boring machine starting sleeve 200 and excavates within the simulated soil 500. The advanced detection radar on the tunnel boring machine 600 detects whether there is water ahead. When water is detected, remote water detection is required for confirmation. At this time, a water detection hole is drilled from the front end of the tunnel boring machine 600 base and a water detection pipe 700 is inserted into the water detection hole. The water detection pipe 700 can detect whether there is water at the bottom of the geology ahead.

[0016] Step 2: The water detection pipe 700 consists of a water detection section 710 at the front end and a process section 720 at the rear end. The water detection section 710 and the process section 720 are detachably connected. The connection method between the water detection section 710 and the process section 720 is existing technology and will not be described in detail here. If no water is found at the bottom of the geological formation ahead, the water detection section 710 and the process section 720 are removed together, and the tunnel boring machine 600 continues to work forward. If water is found at the bottom of the geological formation ahead, the process section 720 is separated from the water detection section 710, and only the process section 720 is removed, and the tunnel boring machine 600 continues to work forward.

[0017] Step 3: When the treatment device 1 inside the tunnel boring machine 600 corresponds to the water detection part 710 left in the simulated soil 500, the treatment pipe 800 is inserted through the clearance slot 12 of the treatment device 1, and the treatment pipe 800 is connected to the water detection part 710. Air is pumped out of the treatment pipe 800, so that the water in the simulated soil 500 is discharged through the water detection part 710 and the treatment pipe 800. After the water is completely discharged, concrete grout is injected into the treatment pipe 800 to reinforce the water-containing parts of the simulated soil 500. While the treatment pipe 800 is working, the tunnel boring machine 600 continues to move forward, and the treatment device 1 moves backward relative to the tunnel boring machine 600 under the action of the push-pull device 19, so that the treatment device 1 and the water detection part 710 remain relatively stationary. After the grouting is completed, the treatment pipe 800 is taken out and the treatment device 1 is quickly moved forward to its initial position. With this setup, compared to existing technologies, there is no need to keep the tunnel boring machine 600 stationary for extended periods. During the treatment process, the tunnel boring machine 600 continues to advance without affecting the treatment of groundwater.

[0018] In the above steps, when the treatment device 1 moves forward quickly to its initial position, the first hydraulic cylinder 15 drives the excavating cutter 14 to extend downward and insert into the simulated soil 500. When the push-pull device 19 pulls the sliding plate 11 to move horizontally, the excavating cutter 14 moves horizontally along with it. The excavating cutter 14 excavates a reinforcement trench in the simulated soil 500. The tail end of the water detection part 710 is located at the center of the reinforcement trench. When the placement trench is aligned with the reinforcement trench, the second hydraulic cylinder 18 pushes the push plate 10 downward. The push plate 10 pushes the steel cage 17 downward. The steel cage 17 falls into the reinforcement trench. After the shield tunnel segments are installed and grouted later, a reinforcement block is formed in the reinforcement trench, and the tail end of the water detection part 710 is fixed to the reinforcement block. At the same time, the area of ​​the water-bearing area in the simulated soil 500 after grouting reinforcement is also integrated with the reinforcement block through the water detection part 710. This can enhance the stability of the grouting reinforcement. After the reinforcement is completed, the pressure test device 400 on the top of the test box 100 is used to test the stability of the tunnel formed by the tunnel boring machine 600.

Claims

1. A method for remote water detection test in complex environment tunnel, characterized in that, It comprises the following steps: Step one, the simulated shield machine (600) carries out excavation in the simulated soil body (500), when remote water detection is needed, a water detection hole is drilled from the front end of the shield machine (600) and a water detection pipe (700) is inserted into the water detection hole, through the water detection pipe (700), whether water exists in the geological bottom in front can be detected; Step two, the water detection pipe (700) is composed of a front water detection part (710) and a rear process part (720), the water detection part (710) and the process part (720) are detachably connected, if no water exists in the geological bottom in front, the water detection part (710) is taken out together with the process part (720), the shield machine (600) continues to work forward, if water exists in the geological bottom in front, only the process part (720) is taken out, the shield machine (600) continues to work forward; Step three, when the treatment device (1) in the cabin of the shield machine (600) corresponds to the water detection part (710) left in the simulated soil body (500), a treatment pipe (800) is inserted from the treatment device (1) and connected with the water detection part (710), air is extracted from the treatment pipe (800), so that the water in the simulated soil body (500) is discharged from the water detection part (710) and the treatment pipe (800), after the water is completely discharged, concrete slurry is injected into the treatment pipe (800), so as to carry out grouting and reinforcement on the part where water exists in the simulated soil body (500), when the treatment pipe (800) works, the shield machine (600) continues to work forward, and the treatment device (1) moves backward relative to the shield machine (600), so that the treatment device (1) and the water detection part (710) remain in a relatively static state, after grouting is completed, the treatment pipe (800) is taken out and the treatment device (1) is quickly moved to the initial position.

2. The method according to claim 1, wherein: In step three, when the treatment device (1) is quickly moved to the initial position, the slotting cutter (14) in the treatment device (1) digs a reinforcing slot in the simulated soil body (500), the tail end of the water detection part (710) is located at the center of the reinforcing slot, and a reinforcement cage (17) is placed in the reinforcing slot, after the shield segment is installed and grouting is carried out later, a reinforced block is formed in the reinforcing slot, and the tail of the water detection part (710) is fixed with the reinforced block.

3. A device for remote water detection test in complex environment tunnel, characterized in that: It comprises a test box (100), one side of the test box (100) is provided with a shield machine starting sleeve (200), the simulated shield machine (600) is arranged in the shield machine starting sleeve (200), an opening is arranged in the cabin of the shield machine (600) and the treatment device (1) is arranged at the opening, the simulated soil body (500) is arranged in the test box (100), the water injection pipe (300) is embedded in the simulated soil body (500) and extends to the outside of the test box (100), and the pressure test device (400) is arranged at the top of the test box (100).

4. The device for testing water in a complex environment tunnel according to claim 3, characterized in that: The management device (1) includes a sliding plate (11), the sliding plate (11) reciprocates horizontally in the shield machine (600) cabin inner wall, the shield machine (600) cabin inner wall is equipped with push-pull device (19), push-pull device (19) is used to drive the sliding plate (11) sliding, the sliding plate (11) is equipped with the slot (12) of giving way.

5. The device for testing water in a complex environment tunnel according to claim 4, characterized in that: The sliding plate (11) is provided with a knife groove (13), the knife groove (13) is slidably connected with a groove cutter (14), the sliding plate (11) is provided with a first hydraulic cylinder (15), the first hydraulic cylinder (15) is used to drive the groove cutter (14) to slide up and down in the knife groove (13).

6. The device for testing water in a complex environment tunnel according to claim 4, characterized in that: One side of the sliding plate (11) is provided with a placing groove, the placing groove is used for placing a steel reinforcement cage (17), one side of the placing groove is detachably fixedly connected with a clamping plate (16), the clamping plate (16) is used for clamping and fixing the steel reinforcement cage (17), the sliding plate (11) is provided with a second hydraulic cylinder (18), the second hydraulic cylinder (18) is fixedly connected with a push plate (10) at the extension end, and the push plate (10) is located in the placing groove.

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