A device and method for advanced geological exploration of curved tunnels

Abstract

This invention discloses an advanced geological exploration device for curved tunnels, comprising a support frame, a guide rail fixedly connected to the upper side of the support frame, a connecting piece fixedly connected to one side of the guide rail, adjacent guide rails being spliced ​​together via the connecting piece, a mounting frame slidably connected to the guide rail, a traveling device mounted on the mounting frame that travels on the guide rail, a crossbar rotatably connected to the mounting frame, a sliding seat slidably connected to the bottom of the crossbar, the sliding seat being driven to move at the bottom of the crossbar by a power device; an electric telescopic rod fixedly connected to the bottom of the sliding seat, a soil screening device rotatably connected to the lower end of the electric telescopic rod, a ground-penetrating radar mounted at the bottom of the electric telescopic rod, and the soil screening device surrounding the ground-penetrating radar. This invention employs an arc-shaped track and crossbar for directional guidance, enabling the ground-penetrating radar to scan above the tunnel in a wave-like pattern, and allowing the crossbar to change angle during the return journey, employing multi-position geological exploration to improve the comprehensive geological coverage of the tunnel crossing area.

Description

Technical Field

[0001] This invention relates to the field of geological exploration technology, and in particular to an advanced geological exploration device and method for curved tunnels. Background Technology

[0002] Before the shield tunnel is laid, geological exploration is required in advance for curved tunnels. This can be done by drilling or ground-penetrating radar. On the one hand, the tunnel's direction makes it difficult to set up exploration points in the area formed on the ground. On the other hand, when the ground is uneven, the electromagnetic waves will oscillate and reflect between the uneven ground and the antenna, and the resulting oscillation signal will affect the effective signal, making the data unanalyzable.

[0003] Leveling the ground surface is time-consuming and labor-intensive, so a detection device is needed that can detect multiple points and specifically level the approach surface when using ground-penetrating radar. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an advanced geological exploration device and method for curved tunnels, thereby solving the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A curved tunnel advanced geological exploration device includes a support frame, a guide rail fixedly connected to the upper side of the support frame, a docking piece fixedly connected to one side of the guide rail, adjacent guide rails being spliced ​​together by the docking piece, a mounting frame slidably connected to the guide rail, a walking device that travels on the guide rail on the mounting frame, a crossbar rotatably connected to the mounting frame, a sliding block slidably connected to the bottom of the crossbar, and the sliding block being driven to move at the bottom of the crossbar by a power device.

[0007] The bottom of the sliding base is fixedly connected to an electric telescopic rod, and the lower end of the electric telescopic rod is rotatably connected to a soil screening device. A ground-penetrating radar is installed at the bottom of the electric telescopic rod, and the soil screening device is arranged around the ground-penetrating radar.

[0008] Preferably, the mating component includes two H-beam plates hinged to each other, one of the H-beam plates has a threaded shaft and a threaded lock nut, one of the guide rails is fixedly connected to a flat plate, the flat plate has a through groove, the adjacent guide rails have threaded holes, the threaded holes are threaded to a lock screw, and the lock screw has a transverse pressure plate.

[0009] Preferably, the soil screening device includes two support rods, which are fixedly connected to the telescopic end of the electric telescopic rod. The lower ends of the two support rods are jointly fixedly connected to a support ring. A sliding block is slidably connected to the bottom of the support ring. The sliding block is driven by a driving device to slide circumferentially along the support ring. The sliding block is provided with a transverse soil distribution box. The bottom of the soil distribution box is provided with soil discharge holes at intervals. A storage box is fixedly connected to the upper side of the soil distribution box.

[0010] Preferably, a conveyor belt is fixedly connected to one side of the soil separating box, and a unidirectional rotating actuating plate is connected to the upper part of the conveyor belt. A pressure roller is rotatably connected to one side of the soil separating box.

[0011] Preferably, a ratchet assembly box is provided on one of the rotating rollers of the conveyor belt. The ratchet assembly box is slidably connected to a lever and fixedly connected to a first spring on the inner wall of the ratchet assembly box. One end of the lever extends out of the ratchet assembly box and is rotatably connected to a cylinder. Multiple arc-shaped protrusions are fixedly connected at intervals on the outer circle of the support ring. The arc-shaped protrusions are arranged correspondingly to the cylinder. The ratchet assembly box enables the conveyor belt to rotate in one direction.

[0012] Preferably, a guide rod is fixedly connected to the upper side of the soil distribution box, and the guide rod is slidably connected to the sliding block and fixedly connected to a limiting spring.

[0013] Preferably, the bottom of the electric telescopic rod is fixedly connected to an electric push rod, the telescopic end of the electric push rod is fixedly connected to a ground-penetrating radar, the telescopic end of the electric push rod is fixedly connected to a horizontal rod, one end of the horizontal rod is rotatably connected to a side push wheel, and an inclined block is fixedly connected to the upper side of the soil distribution box, with the inclined block and the side push wheel being set accordingly.

[0014] A method for advanced geological exploration of curved tunnels, using the aforementioned exploration equipment for advanced geological exploration of tunnels.

[0015] The advantages of this invention are as follows: The curved tunnel advanced geological exploration equipment and method provided by this invention involves setting up an arc-shaped track spliced ​​from multiple guide rails. The mounting frame moves and changes position along the arc-shaped track spliced ​​from multiple guide rails, and the ground-penetrating radar can change its position below the crossbar. It only requires the construction of an arc-shaped track on the central axis of the tunnel. The arc-shaped track only requires the support to be leveled or adjusted for height. The ground-penetrating radar is filled with soil by a soil-screening device at the set measurement position. For areas with uneven ground in the tunnel, it is not necessary to level the site over a large area. The use of arc-shaped track and crossbar directional guidance allows the ground-penetrating radar to scan above the tunnel in a wave-like pattern, and the crossbar can change its angle on the return trip. Multi-position geological exploration is adopted, thereby improving the geological comprehensiveness of the tunnel crossing area.

[0016] This invention utilizes a unidirectional rotating conveyor belt to scrape away the soil residue leaking from the soil distribution box via a toggle plate, leveling the detection area of ​​the ground-penetrating radar. When the toggle plate rotates to the side near the soil distribution box, it folds, preventing soil residue from being transported below the ground-penetrating radar. Subsequently, the discharged soil residue is squeezed by a pressure roller, creating a flat surface directly below the ground-penetrating radar, thus avoiding the influence of undulating terrain on geological detection. Furthermore, when the toggle rod completes a unidirectional toggle of the conveyor belt rotation due to the influence of the arc-shaped protrusion, it also compresses the limiting spring to a certain extent. When the cylinder leaves the arc-shaped protrusion, the limiting spring causes the soil distribution box to sway horizontally. Combined with the inclined inner cavity of the soil distribution box, this facilitates the soil residue sliding down below the ground-penetrating radar. Subsequently, through rotation and the toggle plate, the surface is leveled, filling any pits on the detection surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the basic structure of the present invention;

[0018] Figure 2 yes Figure 1 Enlarged view of section E in the image;

[0019] Figure 3 This is a schematic diagram of the installation structure of the ground-penetrating radar of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure between the soil distribution box and the support ring of the present invention;

[0021] Figure 5 This is a schematic diagram of the soil distribution box of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal structure of the ratchet assembly box of the present invention;

[0023] Figure 7 This is a schematic diagram of the geological exploration route of this invention. Detailed Implementation

[0024] 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.

[0025] like Figure 1-7As shown, the present invention provides an advanced geological exploration device for curved tunnels, including a support 1. The upper side of the support 1 is fixedly connected to a guide rail 11 by bolts. A docking piece 2 is fixedly connected to one side of the guide rail 11. Adjacent guide rails 11 are spliced ​​together by the docking piece 2. A docking piece 2 with angle adjustment is set between two straight guide rails 11. The arc-shaped central axis 30 of the underground tunnel on the ground is transformed into multiple guide rails 11 spliced ​​together, which can be combined to form different arc-shaped trajectories for different tunnels. After use, it can be disassembled into multiple guide rails 11 for easy stacking and transportation. The guide rail 11 is slidably connected to a mounting frame 3. The mounting frame 3 is provided with a walking device 10 that walks on the guide rail 11. The mounting frame 3 is connected to a crossbar 31 by controlling a motor to rotate. The control motor changes the initial angle of the crossbar 31 relative to the mounting frame 3. The bottom of the crossbar 31 is slidably connected to a slide block 32. The slide block 32 is driven by a power device to move at the bottom of the crossbar 31.

[0026] The bottom of the slide block 32 is fixedly connected to the electric telescopic rod 33, the lower end of the electric telescopic rod 33 is rotatably connected to the soil screening device 4, the bottom of the electric telescopic rod 33 is equipped with a ground radar 5, and the soil screening device 4 is arranged around the ground radar 5.

[0027] The walking device 10, power device and drive device all adopt conventional power structures in the existing technology, such as setting a drive motor, the main shaft of the drive motor is fixedly connected to a rubber tire, the rubber tire is pressed against the side of the guide rail, and the position is changed by driving the rubber tire to rotate forward or backward by the drive motor.

[0028] This invention utilizes existing measurement technology to construct an arc-shaped track on the ground for the central axis 30 of a curved tunnel. This arc-shaped track is constructed by splicing multiple guide rails 11, and the angle between adjacent guide rails 11 is adjusted by connecting parts 2, making it suitable for curved tunnels of different radii.

[0029] After the arc-shaped track, composed of multiple guide rails 11, is erected, the mounting frame 3 moves and changes position along the arc-shaped track, and the ground-penetrating radar 5 can change its position below the crossbar 31, such as... Figure 7 As shown, only an arc-shaped track needs to be built on the tunnel's central axis 30. The arc-shaped track only requires the site to be leveled or adjusted by lifting and leveling at the position of support 1. The ground-penetrating radar 5 fills the soil at the set measurement position using the soil-screening device 4. Figure 7 The filling block 40 is designed for areas with uneven ground in the tunnel, where large-scale site leveling is not required. It uses an arc-shaped track and crossbar 31 for directional guidance, enabling the ground radar 5 to scan above the tunnel in a wave-like pattern. The crossbar 31 can also change its angle during the return trip, allowing for multi-position geological detection and thus improving the geological comprehensiveness of the tunnel crossing area.

[0030] In one embodiment of the present invention, the docking component 2 includes two H-beam plates 21 that are hinged to each other. The pivot of one of the H-beam plates 21 is threaded and threadedly connected to a locking nut 22. The two H-beam plates 21 are hinged and rotated relative to each other to form a certain angle pad, and then locked by the locking nut 22. One of the guide rails 11 is fixedly connected to a flat plate 23. The flat plate 23 is provided with a through groove 24. The adjacent guide rails 11 are provided with threaded holes. The threaded holes are threadedly connected to locking screws 25. A transverse pressure plate 26 is provided on the locking screws 25 to adapt to the assembly and erection requirements of curved tunnels with different radii.

[0031] In one embodiment of the present invention, the soil screening device 4 includes two support rods 41, which are fixedly connected to the telescopic end of the electric telescopic rod 33. The lower ends of the two support rods 41 are jointly fixedly connected to a support ring 42. A sliding block 43 is slidably connected to the bottom of the support ring 42. The sliding block 43 is driven by a driving device to slide circumferentially along the support ring 42. The sliding block 43 is provided with a transverse soil distribution box 44. The bottom of the soil distribution box 44 is provided with soil discharge holes at intervals. The inner cavity of the soil distribution box 44 is inclined downwards towards the center of the ground-penetrating radar 5. A storage box 45 is fixedly connected to the upper side of the soil distribution box 44. A crushed soil residue box 20 is fixedly connected to the side of the mounting frame 3. When the storage box 45 is close, the crushed soil residue box 20 puts crushed soil residue into the storage box 45, eliminating the need to store a large amount of soil residue in the storage box 45 and avoiding affecting the movement of the ground-penetrating radar 5.

[0032] The storage box 45 is equipped with necessary automatic control valves. When soil needs to be released, the soil is discharged through the soil distribution box 44 at the location detected by the ground-penetrating radar 5 to fill the area, thereby eliminating the impact of ground undulations on the detection of the ground-penetrating radar 5.

[0033] In one embodiment of the present invention, a conveyor belt 46 is fixedly connected to one side of the soil separating box 44, and a toggle plate 47 is rotatably connected to the upper part of the conveyor belt 46 at intervals. The toggle plate 47 is automatically reset by a torsion spring, and a pressure roller 48 is rotatably connected to one side of the soil separating box 44.

[0034] like Figure 5 As shown, the conveyor belt 46 rotates in one direction and scrapes the soil residue leaking from the soil distribution box 44 outward through the actuating plate 47, leveling the detection position of the ground-penetrating radar 5. When the actuating plate 47 rotates to the side close to the soil distribution box 44, it forms a fold, preventing the soil residue from being transported below the ground-penetrating radar 5. Subsequently, the discharged soil residue is squeezed by the pressure roller 48, forming a flat surface directly below the ground-penetrating radar 5, thereby avoiding the influence of undulating ground on geological detection.

[0035] In one embodiment of the present invention, a ratchet assembly box 5 is provided on one of the rotating rollers of the conveyor belt 46. The ratchet assembly box 5 is slidably connected to a lever 51 and fixedly connected to a first spring on the inner wall of the ratchet assembly box 5. One end of the lever 51 extends out of the ratchet assembly box 5 and is rotatably connected to a cylinder 52. Multiple arc-shaped protrusions 53 are fixedly connected at intervals on the outer circle of the support ring 42. The arc-shaped protrusions 53 are correspondingly arranged with the cylinder 52. The ratchet assembly box 5 causes the conveyor belt 46 to rotate in one direction. The lever 51 rotates with the soil distribution box 44. The cylinder 52 rolls on the outer circle of the support ring 42. When the cylinder 52 encounters the arc-shaped protrusions 53, the lever 51 slides relative to the ratchet assembly box 5, causing the conveyor belt 46 to rotate in one direction.

[0036] like Figure 6 As shown, the ratchet assembly is existing technology, such as the unidirectional rotating tooth 511 on one side of the actuating lever 51. The actuating lever 51 can only actuate the transmission belt 46 in one direction. At the same time, the soil distribution box 44 rotates in a ring along the support ring 42. The soil falling below the ground-penetrating radar 5 is evenly spread. The excess soil is actuated by the unidirectional actuating plate 47 to the outside of the support ring 42. Then the pressure roller 48 flattens it, so that the ground-penetrating radar is close to a flat detection surface, making the geological detection more accurate.

[0037] In one embodiment of the present invention, a guide rod 6 is fixedly connected to the upper side of the soil distribution box 44, and the guide rod 6 is slidably connected to the sliding block 43 and fixedly connected to the limiting spring 61.

[0038] While the lever 51 rotates the conveyor belt 46 in one direction, the supporting force of the first spring is less than that of the limiting spring 61. When the lever 51 completes one rotation of the conveyor belt 46 under the influence of the arc-shaped protrusion 53, it will inevitably compress the limiting spring 61 to a certain extent. When the cylinder 52 leaves the arc-shaped protrusion 53, the limiting spring 61 causes the soil distribution box 44 to sway horizontally. Combined with the inclined inner cavity of the soil distribution box 44, this facilitates the soil and debris to slide down below the ground radar.

[0039] In one embodiment of the present invention, the bottom of the electric telescopic rod 33 is fixedly connected to the electric push rod 62, the telescopic end of the electric push rod 62 is fixedly connected to the ground radar 5, the telescopic end of the electric push rod 62 is fixedly connected to the transverse rod 63, one end of the transverse rod 63 is rotatably connected to the side push wheel 64, and the upper side of the soil distribution box 44 is fixedly connected to the inclined block 65, which is correspondingly set with the side push wheel 64.

[0040] Before the electric telescopic rod 33 pushes the ground-penetrating radar 5 down close to the flat surface, the side pusher 64 pushes the soil distribution box 44 away from directly below the ground-penetrating radar 5 via the inclined block 65, thus facilitating subsequent geological exploration.

[0041] The present invention also discloses a method for advanced geological exploration of curved tunnels, which uses the above-mentioned exploration equipment to conduct advanced geological exploration of tunnels.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A curved tunnel advanced geological exploration device, comprising a support (1), a guide rail (11) fixedly connected to the upper side of the support (1), a docking piece (2) fixedly connected to one side of the guide rail (11), adjacent guide rails (11) being spliced ​​together by the docking piece (2), the guide rail (11) being slidably connected to a mounting frame (3), the mounting frame (3) being provided with a walking device (10) that walks on the guide rail (11), characterized in that: The mounting bracket (3) is rotatably connected to the crossbar (31), and the bottom of the crossbar (31) is slidably connected to the slide block (32). The slide block (32) is driven by a power device to move at the bottom of the crossbar (31). The bottom of the slide (32) is fixedly connected to an electric telescopic rod (33), the lower end of the electric telescopic rod (33) is rotatably connected to a soil screening device (4), a ground radar (5) is installed at the bottom of the electric telescopic rod (33), and the soil screening device (4) is arranged around the ground radar (5). The soil screening device (4) includes two support rods (41), which are fixedly connected to the telescopic end of the electric telescopic rod (33). The lower ends of the two support rods (41) are fixedly connected to a support ring (42). The bottom of the support ring (42) is slidably connected to a sliding block (43). The sliding block (43) is driven by a driving device to slide in a ring along the support ring (42). The sliding block (43) is provided with a transverse soil distribution box (44). The bottom of the soil distribution box (44) is provided with soil discharge holes at intervals. The upper side of the soil distribution box (44) is fixedly connected to a storage box (45).

2. The advanced geological exploration equipment for curved tunnels according to claim 1, characterized in that: The docking component (2) includes two H-beam plates (21) hinged to each other. The pivot of one of the H-beam plates (21) is threaded and threaded to a locking nut (22). One of the guide rails (11) is fixedly connected to a flat plate (23). The flat plate (23) is provided with a through groove (24). The adjacent guide rails (11) are provided with threaded holes. The threaded holes are threaded to a locking screw (25). A transverse pressure plate (26) is provided on the locking screw (25).

3. The advanced geological exploration equipment for curved tunnels according to claim 1, characterized in that: The soil separating box (44) is fixedly connected to a conveyor belt (46) on one side. The conveyor belt (46) is unidirectionally rotatably connected to a toggle plate (47) at intervals. The soil separating box (44) is rotatably connected to a pressure roller (48) on one side.

4. The advanced geological exploration equipment for curved tunnels according to claim 3, characterized in that: A ratchet assembly box (5) is provided on one of the rotating rollers of the conveyor belt (46). The ratchet assembly box (5) is slidably connected to the actuating rod (51) and fixedly connected to the inner wall of the ratchet assembly box (5) with a first spring. One end of the actuating rod (51) extends out of the ratchet assembly box (5) and is rotatably connected to the cylinder (52). Multiple arc-shaped protrusions (53) are fixedly connected at intervals on the outer circle of the support ring (42). The arc-shaped protrusions (53) are correspondingly arranged with the cylinder (52). The ratchet assembly box (5) enables the conveyor belt (46) to rotate in one direction.

5. The advanced geological exploration equipment for curved tunnels according to claim 4, characterized in that: The guide rod (6) is fixedly connected to the upper side of the soil distribution box (44). The guide rod (6) is slidably connected to the sliding block (43) and fixedly connected to the limiting spring (61).

6. The advanced geological exploration equipment for curved tunnels according to claim 5, characterized in that: The electric telescopic rod (33) is fixedly connected to the bottom of the electric push rod (62), the telescopic end of the electric push rod (62) is fixedly connected to the ground radar (5), the telescopic end of the electric push rod (62) is fixedly connected to the transverse rod (63), one end of the transverse rod (63) is rotatably connected to the side push wheel (64), and the upper side of the soil distribution box (44) is fixedly connected to the inclined block (65), and the inclined block (65) is correspondingly set with the side push wheel (64).

7. A method for advanced geological exploration of curved tunnels, characterized in that: Advanced geological exploration of tunnels is carried out using the detection equipment described in any one of claims 1 to 6.

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