A rapid tunnel excavation construction device and its construction method

Abstract

This invention relates to the field of tunnel construction technology and discloses a rapid tunnel excavation construction device and its construction method. The rapid tunnel excavation construction device includes a vehicle body, and a gas treatment mechanism is arranged between the same side of two connecting frames. The gas treatment mechanism includes two placement frames, a hollow arc-shaped block, two gas detectors, and a controller. A fan is installed on the top of the rectangular block, and a distributor is installed at the output end of the fan. Four liquid storage tanks are evenly distributed at the bottom of the inner wall of the rectangular groove. A sealing plate is installed inside the rectangular groove, and a first electric valve is installed at the output end of each gas outlet pipe. By setting up a gas treatment mechanism, this invention can absorb and treat flammable or harmful gases emitted by the construction device when excavating tunnel soil, ensuring the safety of construction personnel inside the tunnel and preventing tunnel collapse, thus effectively improving the efficiency of the tunnel construction device.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, and in particular to a rapid tunnel excavation construction device and its construction method. Background Technology

[0002] Tunnels are engineering structures buried underground, representing a form of human utilization of underground space. Tunnels can be categorized into traffic tunnels, hydraulic tunnels, municipal tunnels, and mining tunnels. Current tunnel construction generally employs the bench method for rapid excavation, which includes methods such as the core-soil-retaining bench method, micro-bench method, short bench method, and three-bench method.

[0003] While existing short-bench excavation rapid construction equipment for tunnels can quickly excavate soil from inside the tunnel and transport the excavated soil out of the excavation site, improving work efficiency, most existing tunnel construction equipment is not equipped with mechanisms for monitoring and treating flammable or harmful gases. If the construction equipment accidentally encounters flammable or harmful gases during excavation, the probability of life-threatening situations for workers inside the tunnel will greatly increase, and there may even be an explosion leading to tunnel collapse, thus reducing the efficiency of the construction equipment.

[0004] Therefore, we need to propose a new rapid tunnel excavation construction device and its construction method in order to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid tunnel excavation construction device and its construction method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rapid tunnel excavation construction device includes a vehicle body. Two symmetrical connecting frames are mounted on one side of the vehicle body, and a gas processing mechanism is disposed between the same side of the two connecting frames. The gas processing mechanism includes two placement frames, a hollow arc-shaped block, two gas detectors, and a controller. A rectangular block is fixed to the top of one of the placement frames, and a fan is mounted on the top of the rectangular block. Multiple air inlets are evenly distributed on the outer wall of the hollow arc-shaped block. Two symmetrical circular pipes are fixedly inserted through the side of the hollow arc-shaped block near the placement frame. A T-junction is installed between the output ends of the two circular pipes. The output of the fan... A diverter is installed at one end. A rectangular plate is arranged between the upper sides of the two placement racks. A rectangular groove is opened at the top of the rectangular plate. Four liquid storage tanks are evenly distributed at the bottom of the inner wall of the rectangular groove. A sealing plate is installed inside the rectangular groove. Four air inlet pipes are fixedly inserted through the top of the sealing plate at equal intervals. Four air outlet pipes are evenly distributed at the top of the sealing plate. A first electric valve is installed at the output end of each air outlet pipe. A second electric valve is installed at each output end of the diverter. An L-shaped pipe is installed at the output end of each second electric valve. A one-way valve is installed at the output end of each L-shaped pipe.

[0008] Preferably, the output end of the three-way pipe is connected to the input end of the blower, the input end of each air inlet pipe is located inside each liquid storage tank, each air outlet pipe is located inside each liquid storage tank, the output end of each one-way valve is connected to the input end of each air inlet pipe, and the blower, gas detector, four first electric valves and four second electric valves are all electrically connected to the controller. Under the action of the first electric valve, the gas guided by the distributor can be controlled to enter the interior of the liquid storage tank.

[0009] Preferably, a construction mechanism is provided between the two connecting frames on the same side. The construction mechanism includes a hollow block and a single-hole block. The same side of the two connecting frames is installed with the surface of the hollow block. The inner front surface and the inner rear surface of the hollow block are provided with sliding grooves. The bottom of the inner wall of the two sliding grooves is rotatably connected to a threaded rod through a first bearing. With the cooperation of the threaded rod, the sliding groove and the first motor, the cross slider can be moved vertically up and down.

[0010] Preferably, the top ends of the two threaded rods respectively movably penetrate the top of the inner wall of the two slide grooves. Two first motors are installed on the top of the hollow block, and the output ends of the two first motors are respectively installed with the top ends of the two threaded rods. A protective shell is installed on the top of the hollow block, and the two first motors are both inside the protective shell. A cross slider is slidably connected inside the two slide grooves, so that the construction mechanism on the construction device can be driven to move vertically up and down with the cooperation of the cross slider and the slide groove.

[0011] Preferably, the bottom ends of the two threaded rods are threaded through the tops of the two cross sliders, and L-shaped blocks are slidably connected to the opposite sides of the two cross sliders. A mounting bracket is fixed between the opposite sides of the two L-shaped blocks. A second motor is installed inside the mounting bracket, and a rotating shaft is provided inside the mounting bracket. The output end of the second motor is installed with the end of the rotating shaft closest to the second motor. With the cooperation of the second motor and the rotating shaft, the cutter head can be driven to rotate.

[0012] Preferably, servo electric cylinders are installed on the surfaces of both L-shaped blocks. One side of the telescopic end of each of the two servo electric cylinders is respectively installed on the surfaces of the two cross sliders. Mounting seats are installed on the opposite sides of each of the two L-shaped blocks. The two servo electric cylinders are respectively located inside the two mounting seats. Two connecting blocks are installed on the top and bottom of the mounting frame. A disc is fixed between one side of each of the four connecting blocks. One side of the hollow arc-shaped block is fixed to the side of the disc near the second motor. This allows the combustible or harmful gases excavated during the excavation of the cutterhead tunnel to be sucked away with the cooperation of the hollow arc-shaped block and the air inlet.

[0013] Preferably, the rotating shaft is located inside the disc, and a cutter head is installed on one side of the outer surface of the rotating shaft. A cylindrical hole is opened on the inner wall of the disc, and a single-ended tube is installed inside the cylindrical hole. An installation block is fixed on the inner wall of the single-ended tube near the inlet. An auger is connected to the inside of the installation block through a second bearing, so that the soil reaching the cylindrical hole can be guided away with the cooperation of the auger, the installation block, the single-ended tube and the third motor.

[0014] Preferably, the auger is located inside the single-ended tube, and the side of the auger away from the disc moves through the inner wall of the single-ended tube. Two sets of stabilizing frames are fixed to the outer wall of the single-ended tube, and the tops of the two sets of stabilizing frames are respectively installed with the bottoms of two L-shaped blocks. A third motor is fixed inside the single-hole block, and the output end of the third motor is installed with the side of the auger away from the disc. Under the action of the third motor, the auger can be driven to rotate.

[0015] Preferably, the top of the single-hole block is installed with the bottom of another placement rack, and the inner wall of the single-head tube is provided with a discharge hole near the third motor. Both placement racks are fixed between the opposite sides of the two L-shaped blocks. The two first motors, the second motor, the two servo electric cylinders and the third motor are all electrically connected to the controller. Under the action of the controller, the electrically connected equipment can be controlled to perform opening and closing operations.

[0016] A construction method for a rapid tunnel excavation device includes the following steps:

[0017] S1. When it is necessary to carry out tunnel excavation, the cutter head on the construction mechanism is moved up to a suitable height and in contact with the tunnel soil by the vehicle body, the first motor, the threaded rod and the cross block. Then, the tunnel excavation operation can be carried out by the cooperation of the second motor, the rotating shaft, the servo electric cylinder and the L-shaped block.

[0018] S2. When the construction equipment is excavating the tunnel, the soil excavated from the tunnel by the cutterhead is directly diverted away with the cooperation of the third motor, auger, mounting block, single-head pipe, disc and cylindrical hole.

[0019] S3. When the cutterhead encounters combustible or harmful gases during tunnel excavation, the combustible or harmful gases are directly diverted to the corresponding storage tank for reaction and removal, with the cooperation of the controller, gas detector and blower.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. This invention, by setting up a gas treatment mechanism, can absorb and treat the flammable or harmful gases emitted by the construction equipment during tunnel excavation, ensuring the safety of construction personnel inside the tunnel and preventing tunnel collapse. This effectively improves the efficiency of the tunnel construction equipment. When flammable or harmful gases are encountered during tunnel excavation, the first and second electric valves corresponding to the gas can be opened directly with the cooperation of the gas detector, fan, and controller. When the first and second electric valves are opened, the fan will directly guide the harmful or flammable gas into the corresponding storage tank, thus achieving the removal of flammable or harmful gases.

[0022] 2. This invention, by setting up a construction mechanism, can perform tunnel excavation operations. When tunnel excavation is required, the cutterhead on the construction device is directly brought into contact with the tunnel soil by the vehicle body. Then, the cutterhead on the construction mechanism is moved up to a suitable height by the first motor, threaded rod, and cross slider. Subsequently, the cutterhead is rotated by the cooperation of the second motor and the rotating shaft, thus realizing the excavation of the tunnel soil. Then, the tunnel is excavated to a suitable depth by the cooperation of the electric push rod and L-shaped block. The above operation steps are repeated to excavate the upper step of the tunnel. Then, the support operation is carried out. Then, the tunnel is excavated to a certain depth, and the support operation is carried out after the excavation is completed. Finally, the lower step is excavated and supported.

[0023] 3. In this invention, after the excavation and support operations of the lower step are completed, the second round of tunnel excavation operations can be carried out again. This process can be repeated to carry out tunnel excavation operations. The soil excavated by the cutterhead will be directly transported out of the excavation site by the cooperation of the third motor, auger, single-head pipe, disc and installation block, thus ensuring the normal excavation operation of the tunnel. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a rapid tunnel excavation construction device proposed in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the construction mechanism structure of a rapid tunnel excavation construction device proposed in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the construction mechanism and gas handling mechanism of a rapid tunnel excavation construction device according to an embodiment of the present invention;

[0027] Figure 4 This is a top-view three-dimensional structural diagram of a rapid tunnel excavation construction device proposed in an embodiment of the present invention;

[0028] Figure 5 for Figure 2 Enlarged view of the local structure at point A in the middle;

[0029] Figure 6 for Figure 3 Enlarged view of the local structure at point B;

[0030] Figure 7 This is a three-dimensional structural diagram of a rapid tunnel excavation construction device according to an embodiment of the present invention, comprising a disc, a cylindrical hole, a single-ended pipe, a mounting block, an auger, a third motor, and a discharge hole.

[0031] Figure 8 This is a top-view three-dimensional structural diagram of the construction mechanism of a rapid tunnel excavation construction device proposed in an embodiment of the present invention;

[0032] Figure 9 This is a three-dimensional structural diagram of the cavity arc-shaped block and air inlet of a rapid tunnel excavation construction device proposed in an embodiment of the present invention;

[0033] Figure 10 This is a three-dimensional structural diagram of a rectangular plate, rectangular groove, and liquid storage tank of a rapid tunnel excavation construction device proposed in an embodiment of the present invention.

[0034] In the diagram: 1. Vehicle body; 2. Connecting frame; 3. Construction mechanism; 301. Hollow block; 302. Slide groove; 303. Threaded rod; 304. First motor; 305. Protective shell; 306. Cross slider; 307. L-shaped block; 308. Mounting frame; 309. Second motor; 310. Rotating shaft; 311. Servo electric cylinder; 312. Mounting base; 313. Connecting block; 314. Disc; 315. Cutter head; 316. Cylindrical hole; 317. Single-ended tube; 318. Mounting block; 319. Screwdriver; 320. Third motor; 321. Stabilizer. 322. Single-hole block; 323. Discharge hole; 4. Gas processing mechanism; 401. Placement rack; 402. Rectangular block; 403. Fan; 404. Hollow arc-shaped block; 405. Air inlet; 406. Round pipe; 407. T-shaped pipe; 408. Gas detector; 409. Controller; 410. Diverter; 411. First electric valve; 412. Second electric valve; 413. L-shaped pipe; 414. Rectangular plate; 415. Rectangular groove; 416. Liquid storage tank; 417. One-way valve; 418. Sealing plate; 419. Air inlet pipe; 420. Air outlet pipe. Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] In one embodiment, refer to Figures 1 to 10 A rapid tunnel excavation construction device includes a vehicle body 1, with two symmetrical connecting frames 2 installed on one side of the vehicle body 1, and a gas handling mechanism 4 arranged between the two connecting frames 2 on the same side.

[0037] The gas handling mechanism 4 includes two mounting frames 401, a hollow arc-shaped block 404, two gas detectors 408, and a controller 409. A rectangular block 402 is fixed to the top of one of the mounting frames 401, and a fan 403 is mounted on the top of the rectangular block 402. Multiple air inlets 405 are evenly distributed on the outer wall of the hollow arc-shaped block 404. Two symmetrical circular pipes 406 are fixedly inserted through the side of the hollow arc-shaped block 404 near the mounting frame 401. A T-junction 407 is installed between the output ends of the two circular pipes 406. A distributor 410 is installed at the output end of the fan 403. A rectangular plate 414 is provided between the upper sides of the two mounting frames 401. A rectangular groove 415 is provided on the top of the rectangular plate 414. Four liquid storage tanks 416 are equally distributed at the bottom of the inner wall of the rectangular groove 415. A sealing plate 418 is installed inside the rectangular groove 415. Four air inlet pipes 419 are fixedly distributed through the top of the sealing plate 418 at equal intervals. Four air outlet pipes 420 are equally distributed on the top of the sealing plate 418. A first electric valve 411 is installed at the output end of each air outlet pipe 420. A second electric valve 412 is installed at each output end of the distributor 410. An L-shaped pipe 413 is installed at the output end of each second electric valve 412. A one-way valve 417 is installed at the output end of each L-shaped pipe 413.

[0038] like Figure 3 , Figures 4-6 and Figure 10 As shown, the output end of the three-way pipe 407 is connected to the input end of the blower 403. The input end of each air inlet pipe 419 is located inside each liquid storage tank 416. Each air outlet pipe 420 is located inside each liquid storage tank 416. The output end of each one-way valve 417 is connected to the input end of each air inlet pipe 419. The blower 403, gas detector 408, four first electric valves 411 and four second electric valves 412 are all electrically connected to the controller 409. Under the action of the first electric valve 411, the controller can control whether the gas diverted by the distributor 410 can enter the interior of the liquid storage tank 416.

[0039] like Figures 1-4 As shown, a construction mechanism 3 is provided between the two connecting frames 2 on the same side. The construction mechanism 3 includes a hollow block 301 and a single-hole block 322. The two connecting frames 2 are installed on the same side with the surface of the hollow block 301. The inner front surface and the inner rear surface of the hollow block 301 are provided with a sliding groove 302. The bottom of the inner wall of the two sliding grooves 302 are rotatably connected to a threaded rod 303 through a first bearing. With the cooperation of the threaded rod 303, the sliding groove 302 and the first motor 304, the cross slider 306 can be ensured to move vertically up and down.

[0040] like Figures 2-4 and Figure 8As shown, the top ends of the two threaded rods 303 respectively movably penetrate the top of the inner wall of the two slide grooves 302. Two first motors 304 are installed on the top of the hollow block 301. The output ends of the two first motors 304 are respectively installed with the top ends of the two threaded rods 303. A protective shell 305 is installed on the top of the hollow block 301. The two first motors 304 are both inside the protective shell 305. Cross sliders 306 are slidably connected inside the two slide grooves 302, so that the construction mechanism 3 on the construction device can be driven to move vertically up and down with the cooperation of the cross sliders 306 and the slide grooves 302.

[0041] like Figures 2-6 and Figure 8 As shown, the bottom ends of the two threaded rods 303 are threaded through the tops of the two cross sliders 306 respectively. L-shaped blocks 307 are slidably connected to the opposite sides of the two cross sliders 306. A mounting bracket 308 is fixed between the opposite sides of the two L-shaped blocks 307. A second motor 309 is installed inside the mounting bracket 308. A rotating shaft 310 is provided inside the mounting bracket 308. The output end of the second motor 309 is installed with the end of the rotating shaft 310 near the second motor 309. With the cooperation of the second motor 309 and the rotating shaft 310, the cutter head 315 can be driven to rotate.

[0042] like Figures 2-9 As shown, servo electric cylinders 311 are mounted on the surfaces of the two L-shaped blocks 307. The telescopic ends of the two servo electric cylinders 311 are respectively mounted on the surfaces of the two cross sliders 306. Mounting seats 312 are mounted on the opposite sides of the two L-shaped blocks 307. The two servo electric cylinders 311 are respectively located inside the two mounting seats 312. Two connecting blocks 313 are mounted on the top and bottom of the mounting frame 308. A disc 314 is fixed between one side of the four connecting blocks 313. One side of the hollow arc-shaped block 404 is fixed to the side of the disc 314 near the second motor 309, so that the combustible or harmful gases excavated by the cutterhead 315 during tunnel excavation can be sucked away with the cooperation of the hollow arc-shaped block 404 and the air inlet 405.

[0043] like Figures 2-5 , Figure 7 and Figure 8 As shown, the rotating shaft 310 is located inside the disc 314. A cutter head 315 is installed on the outer surface of the rotating shaft 310 near one side. A cylindrical hole 316 is opened on the inner wall of the disc 314. A single-ended tube 317 is installed inside the cylindrical hole 316. An installation block 318 is fixed on the inner wall of the single-ended tube 317 near the inlet. An auger 319 is connected to the inside of the installation block 318 through a second bearing. With the cooperation of the auger 319, the installation block 318, the single-ended tube 317 and the third motor 320, the soil reaching the cylindrical hole 316 can be guided away.

[0044] like Figures 2-5 , Figure 7 and Figure 8 As shown, the auger 319 is located inside the single-head tube 317, and the side of the auger 319 away from the disc 314 moves through the inner wall of the single-head tube 317. Two sets of stabilizing frames 321 are fixed to the outer wall of the single-head tube 317. The tops of the two sets of stabilizing frames 321 are respectively installed with the bottoms of the two L-shaped blocks 307. A third motor 320 is fixed inside the single-hole block 322. The output end of the third motor 320 is installed with the side of the auger 319 away from the disc 314. Under the action of the third motor 320, the auger 319 can be driven to rotate.

[0045] like Figures 2-8 As shown, the top of the single-hole block 322 is installed with the bottom of another placement rack 401. The inner wall of the single-head tube 317 is provided with a discharge hole 323 near the third motor 320. Both placement racks 401 are fixed between the opposite sides of the two L-shaped blocks 307. The two first motors 304, the second motor 309, the two servo electric cylinders 311 and the third motor 320 are all electrically connected to the controller 409. Under the action of the controller 409, the device electrically connected to it can be controlled to perform opening and closing operations.

[0046] In this invention, when tunnel excavation is required, the controller 409 (i.e., the PLC controller) is first connected to the control console on the vehicle body 1. Simultaneously, the sealing plate 418 is opened, and appropriate amounts of carbon tetrachloride solution are injected into the first storage tank 416, appropriate amounts of cuprous chloride solution are injected into the second storage tank 416, and appropriate amounts of sodium hydroxide solution are injected into the inner walls of the third and fourth storage tanks 416. Then, the sealing plate 418 is reinstalled in its initial position. At the same time, the concentration thresholds for combustible or toxic gases typically excavated in the tunnel are set (i.e., methane, carbon monoxide, hydrogen sulfide, and sulfur dioxide gases typically appear inside the tunnel). Then, the vehicle body 1 is started, and the two connecting frames 2 are connected... With the cooperation of the control system, the construction mechanism 3 and the gas handling mechanism 4 on the entire construction device are moved towards the tunnel soil to be excavated. When the cutterhead 315 contacts the tunnel soil, the two first motors 304 are directly and synchronously started using the control console 409 on the vehicle body 1. The two first motors 304, with the cooperation of the threaded rod 303 and the corresponding slide groove 302, directly drive the corresponding cross slider 306 to move vertically upward. When the two cross sliders 306 start to move upward synchronously, the two moving cross sliders 306 will directly drive the construction mechanism 3 and the gas handling mechanism 4 to move upward. When the cutterhead 315 moves to a suitable height, the control console 409 on the vehicle body 1 is used to directly drive the construction mechanism 3 and the gas handling mechanism 4 to move upward. In coordination with motor 409, the two first motors 304 are simultaneously shut down, and then the second motor 309, two servo electric cylinders 311, and the third motor 320 are started. The started second motor 309 directly drives the rotating shaft 310 to rotate, which in turn drives the cutterhead 315 to rotate. The rotating cutterhead 315 then excavates the contact tunnel soil. Simultaneously, the started two servo electric cylinders 311, in coordination with the two cross sliders 306, two L-shaped blocks 307, and two mounting bases 312, move the mounting frame 308. The moving mounting frame 308, in turn, drives the rotating cutterhead 315 to move through the coordination of the second motor 309 and the rotating shaft 310. The moving rotating cutterhead 315... 5. This allows for deeper excavation of the tunnel soil. The excavated soil then enters directly into the disc 314. When the soil reaches the inlet of the cylindrical hole 316 on the disc 314, the activated third motor 320, in conjunction with the single-ended pipe 317, mounting block 318, and auger 319, guides the soil directly to the inlet of the cylindrical hole 316 away. The soil inside the single-ended pipe 317 then continuously moves towards the outlet hole 323. When the soil inside the single-ended pipe 317 reaches the outlet hole 323, it passes directly through the outlet hole 323 and falls to the ground, thus conveying the excavated soil from the excavation location. When the cutterhead 315 completes the tunnel excavation depth...At this point, using the control console, two servo electric cylinders 311, and controller 409 on vehicle body 1, the cutterhead 315 is reset to its initial position. Then, vehicle body 1 is moved and the above steps are repeated to excavate the tunnel. When the upper bench excavation is completed, the upper bench is trimmed using a manual electric pick. Next, workers use a shotcrete machine to apply initial shotcrete to the excavated tunnel wall. A steel frame is then erected at the shotcrete location, followed by the installation of anchor bolts, pre-support, and radial anchor bolts. Afterward, shotcrete is applied again. When the concrete hardens to a suitable consistency, the construction equipment is used to excavate the upper bench to a suitable depth, followed by support work. When the second batch of concrete has hardened to the appropriate consistency, vehicle 1 is moved directly. Through the control console and controller 409 on vehicle 1, the cutterhead 315 on the construction device is controlled to excavate the lower bench of the tunnel. Once the tunnel soil on the lower bench has been excavated, a manual electric pick is used again to trim the lower bench, followed by support operations. After the concrete on the lower bench has hardened, vehicle 1 is moved again to begin the next round of short bench excavation. Simultaneously, while controller 409 is in use, two gas detectors 408 continuously monitor the gas concentration inside the tunnel and transmit the detected gas concentration values ​​to controller 409 as electrical signals. Internally, the controller 409 then analyzes and compares the received concentration threshold with the concentration threshold preset by the controller 409. When methane gas is excavated during tunnel excavation, if the methane gas concentration detected by the controller 409 exceeds the preset concentration threshold, the controller 409 will directly control the fan 403 to start. The started fan 403 will then work together through the three-way pipe 407, two round pipes 406, and the hollow arc block 404 to provide suction to the air intake end of each air inlet 405. At this time, each air inlet 405 with suction will directly and quickly suck away the methane gas excavated by the cutter head 315. At the same time, the controller 409 will also simultaneously open the corresponding corresponding valve on the storage tank 416 containing carbon tetrachloride solution. The first electric valve 411 and the second electric valve 412 then direct the drawn-out methane gas through the distributor 410, the corresponding first electric valve 411, the L-shaped pipe 413, the one-way valve 417, and the inlet pipe 419 to guide the drawn-out methane gas into the carbon tetrachloride solution. When the methane gas comes into contact with the carbon tetrachloride solution, the carbon tetrachloride solution absorbs the methane gas. Similarly, when the carbon monoxide gas concentration detected by the controller 409 exceeds the concentration threshold preset by the controller 409, the controller 409 will repeat the above operation steps, opening the corresponding first electric valve 411 and the second electric valve 412 on the storage tank 416 containing cuprous chloride solution, and then guiding the carbon monoxide gas into the cuprous chloride solution.When carbon monoxide gas comes into contact with cuprous chloride solution, the cuprous chloride solution reacts and removes the carbon monoxide gas. Similarly, when the concentration of hydrogen sulfide or sulfur dioxide gas detected by controller 409 exceeds the concentration threshold preset by controller 409, fan 403 directly guides the hydrogen sulfide or sulfur dioxide gas into two sodium hydroxide solutions respectively. When the hydrogen sulfide or sulfur dioxide gas comes into contact with the sodium hydroxide solution, the hydrogen chloride or sulfur dioxide gas is directly reacted and removed by the sodium hydroxide solution. This prevents flammable or toxic gases from spreading in the tunnel, effectively protecting the health and safety of construction personnel inside the tunnel and ensuring the normal progress of tunnel construction.

[0047] Among them, the vehicle body 1, the first motor 304, the second motor 309, the servo electric cylinder 311, the cutter head 315, the third motor 320, the fan 403, the gas detector 408, the controller 409, the first electric valve 411, the second electric valve 412 and the one-way valve 417 are all existing technologies and will not be explained in detail here.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rapid tunnel excavation construction device, comprising a vehicle body (1), characterized in that, Two symmetrical connecting frames (2) are installed on one side of the vehicle body (1), and a gas handling mechanism (4) is provided between the same side of the two connecting frames (2). The gas processing mechanism (4) includes two mounting frames (401), a hollow arc-shaped block (404), two gas detectors (408), and a controller (409). A rectangular block (402) is fixed to the top of one of the mounting frames (401), and a fan (403) is installed on the top of the rectangular block (402). Multiple air inlets (405) are evenly distributed on the outer wall of the hollow arc-shaped block (404). Two symmetrical circular tubes (406) are fixedly inserted through the side of the hollow arc-shaped block (404) near the mounting frame (401). A three-way pipe (407) is installed between the output ends of the two circular tubes (406). A distributor (410) is installed at the output end of the fan (403). A rectangular plate (414) is provided between the upper sides of the two mounting frames (401). The rectangular plate (414) has a rectangular groove (415) at the top. Four liquid storage tanks (416) are equally distributed at the bottom of the inner wall of the rectangular groove (415). A sealing plate (418) is installed inside the rectangular groove (415). Four air inlet pipes (419) are fixedly distributed through the top of the sealing plate (418) at equal intervals. Four air outlet pipes (420) are equally distributed at the top of the sealing plate (418). A first electric valve (411) is installed at the output end of each air outlet pipe (420). A second electric valve (412) is installed at each output end of the distributor (410). An L-shaped pipe (413) is installed at the output end of each second electric valve (412). A one-way valve (417) is installed at the output end of each L-shaped pipe (413).

2. The rapid tunnel excavation construction device according to claim 1, characterized in that, The output end of the three-way pipe (407) is connected to the input end of the fan (403). The input end of each air inlet pipe (419) is located inside each liquid storage tank (416). Each air outlet pipe (420) is located inside each liquid storage tank (416). The output end of each one-way valve (417) is connected to the input end of each air inlet pipe (419). The fan (403), gas detector (408), four first electric valves (411) and four second electric valves (412) are all electrically connected to the controller (409).

3. The rapid tunnel excavation construction device according to claim 1, characterized in that, A construction mechanism (3) is provided between the two connecting frames (2) on the same side. The construction mechanism (3) includes a hollow block (301) and a single-hole block (322). The two connecting frames (2) are installed on the same side with the surface of the hollow block (301). The inner front surface and the inner rear surface of the hollow block (301) are provided with a sliding groove (302). The bottom of the inner wall of the two sliding grooves (302) is rotatably connected to a threaded rod (303) through a first bearing.

4. The rapid tunnel excavation construction device according to claim 3, characterized in that, The top ends of the two threaded rods (303) respectively movably penetrate the top of the inner wall of the two slide grooves (302). Two first motors (304) are installed on the top of the hollow block (301). The output ends of the two first motors (304) are respectively installed with the top ends of the two threaded rods (303). A protective shell (305) is installed on the top of the hollow block (301). The two first motors (304) are both inside the protective shell (305). A cross slider (306) is slidably connected inside the two slide grooves (302).

5. The rapid tunnel excavation construction device according to claim 4, characterized in that, The bottom ends of the two threaded rods (303) are threaded through the tops of the two cross sliders (306). L-shaped blocks (307) are slidably connected to the opposite sides of the two cross sliders (306). A mounting bracket (308) is fixed between the opposite sides of the two L-shaped blocks (307). A second motor (309) is installed inside the mounting bracket (308). A rotating shaft (310) is provided inside the mounting bracket (308). The output end of the second motor (309) is installed with the end of the rotating shaft (310) near the second motor (309).

6. The rapid tunnel excavation construction device according to claim 5, characterized in that, Servo electric cylinders (311) are mounted on the surfaces of the two L-shaped blocks (307). The telescopic ends of the two servo electric cylinders (311) are respectively mounted on the surfaces of the two cross sliders (306). Mounting seats (312) are mounted on the opposite sides of the two L-shaped blocks (307). The two servo electric cylinders (311) are respectively located inside the two mounting seats (312). Two connecting blocks (313) are mounted on the top and bottom of the mounting frame (308). A disc (314) is fixed between one side of the four connecting blocks (313). One side of the hollow arc block (404) is fixed to the side of the disc (314) near the second motor (309).

7. The rapid tunnel excavation construction device according to claim 6, characterized in that, The rotating shaft (310) is located inside the disc (314). A cutter head (315) is installed on the outer surface of the rotating shaft (310) near one side. A cylindrical hole (316) is opened on the inner wall of the disc (314). A single-ended tube (317) is installed inside the cylindrical hole (316). An installation block (318) is fixed on the inner wall of the single-ended tube (317) near the inlet. An auger (319) is connected to the inside of the installation block (318) through a second bearing.

8. A rapid tunnel excavation construction device according to claim 7, characterized in that, The auger (319) is located inside the single-ended tube (317), and the side of the auger (319) away from the disc (314) moves through the inner wall of the single-ended tube (317). Two sets of stabilizers (321) are fixed on the outer wall of the single-ended tube (317). The tops of the two sets of stabilizers (321) are respectively installed with the bottoms of two L-shaped blocks (307). A third motor (320) is fixed inside the single-hole block (322), and the output end of the third motor (320) is installed with the side of the auger (319) away from the disc (314).

9. A rapid tunnel excavation construction device according to claim 8, characterized in that, The top of the single-hole block (322) is installed with the bottom of another placement rack (401). The inner wall of the single-head tube (317) is provided with a discharge hole (323) near the third motor (320). The two placement racks (401) are fixed between the opposite sides of the two L-shaped blocks (307). The two first motors (304), the second motor (309), the two servo electric cylinders (311) and the third motor (320) are all electrically connected to the controller (409).

10. The construction method of the rapid tunnel excavation construction device as described in claim 9, characterized in that, Includes the following steps: S1. When it is necessary to carry out tunnel excavation operations, the cutter head (315) on the construction mechanism is moved up to a suitable height and in contact with the tunnel soil by the vehicle body (1), the first motor (304), the threaded rod (303) and the cross block (306). Then, the tunnel excavation operation can be carried out by the cooperation of the second motor (309), the rotating shaft (310), the servo electric cylinder (311) and the L-shaped block (307). S2. When the construction device is excavating the tunnel, the soil excavated by the cutterhead (315) from the tunnel is directly diverted away by the cooperation of the third motor (320), auger (319), mounting block (318), single-head pipe (317), disc (314) and cylindrical hole (316). S3. When the cutterhead (315) digs out combustible or harmful gas during tunnel excavation, the combustible or harmful gas is directly diverted to the corresponding storage tank (416) by the controller (409), gas detector (408) and blower (403) for reaction removal.

Images