Displacement and settlement monitoring equipment for over-crossing existing subway line in pipe-jacking construction

Abstract

The invention relates to the technical field of settlement monitoring, and discloses pipe-jacking construction overpass existing subway line displacement settlement monitoring equipment which comprises a plurality of mounting mechanisms and a plurality of positioning mechanisms, the mounting mechanisms are detachably connected with the positioning mechanisms, each mounting mechanism comprises a connecting frame, the left side and the right side of each connecting frame are each provided with a first side groove, and a second side groove is formed in the left side and the right side of each connecting frame. Sliding plates are fixed to the positions, located in front of and behind the two first side grooves, of the left end and the right end of the connecting frame, a screw barrel is fixed to the top of the connecting frame, an anchor rod is in threaded connection with the interior of the screw barrel, a first inner cavity is formed in the connecting frame, and a worm is rotationally connected with the interior of the first inner cavity. The installation mechanism is fixedly connected with the tunnel vault, a proper number of installation mechanisms and positioning mechanisms are assembled according to the area of the subway tunnel vault, the pipe-jacking construction overpass subway existing line displacement settlement monitoring equipment with the adaptive length is formed to be used in a matched mode, customization is not needed, and flexibility and convenience are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of settlement monitoring, and in particular to a displacement settlement monitoring device for crossing an existing subway line during pipe jacking construction. Background Art

[0002] The displacement and settlement monitoring equipment for existing subway lines during pipe jacking construction is mainly used to monitor the displacement and settlement of existing subway lines during pipe jacking construction. The equipment can monitor the displacement and settlement of subway tunnels, tracks, stations and other structures to ensure the safety and stability of existing subway lines.

[0003] The monitoring contents may include the vault settlement of subway tunnels and stations, the settlement of the surface and pipelines, and the change of groundwater level. These changes may affect the normal operation of subway trains and even threaten the personal safety of passengers. Therefore, timely and accurate monitoring of these settlement conditions is of great significance for preventing and controlling subway settlement problems.

[0004] During the monitoring process, various monitoring equipment and technologies will be used, such as multi-parameter strain meters, vibration monitors, phase difference meters and other equipment to assist in the use of real-time monitoring and analysis of subway settlement changes.

[0005] Tunnel vault settlement monitoring is an important part of underground tunnel deformation monitoring. By installing the equipment at a fixed position on the subway tunnel vault, it is possible to obtain monitoring data at the tunnel vault, help construction personnel understand the deformation of the subway line in a timely manner, ensure construction safety and protect the normal operation of the subway line.

[0006] However, there is a lack of settlement monitoring equipment that can be flexibly adapted according to the size and curvature of the tunnel vault. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a displacement and settlement monitoring device for crossing an existing subway line during pipe jacking construction, which solves the problems raised in the above-mentioned background technology.

[0008] To solve the above technical problems, according to one aspect of the present invention, more specifically, a displacement settlement monitoring device for crossing an existing subway line during pipe jacking construction includes a plurality of mounting mechanisms and a plurality of positioning mechanisms, wherein the mounting mechanisms are detachably connected to the positioning mechanisms, and the mounting mechanisms include a connecting frame, wherein the left and right sides of the connecting frame are provided with side grooves 1, and the left and right ends of the connecting frame are provided with slide plates located in front and behind the two side grooves 1, a screw barrel is fixed on the top of the connecting frame, and an anchor rod is threadedly connected to the screw barrel, and an inner cavity 1 is provided inside the connecting frame, wherein the inner cavity 1 is provided inside the connecting frame, and the inner cavity 1 is provided inside the connecting frame. A worm is rotatably connected inside the inner cavity, and two rotating shafts are rotatably connected inside the inner cavity on the left and right sides of the worm, a worm wheel is fixed to the middle of the outer surface of the rotating shaft, and the four worm wheels are meshed with the worm, and transmission gears are fixed on the front and back of the outer surface of the rotating shaft. Racks are slidably connected to the left and right sides of the inner cavity, and the opposite ends of the two racks respectively penetrate into the two side grooves and are fixed with arc plates, and the inner side walls of the arc plates are fixed with latch teeth, and the transmission gear is meshed with the rack on the same side.

[0009] Furthermore, the bottom end of the worm penetrates through the lower surface of the connecting frame and is fixed with a screw head.

[0010] Furthermore, the positioning mechanism includes a bracket, the left and right sides of the bracket are each provided with a side groove II, the front and rear surfaces of the inside of the side groove II are each provided with a through slide, the inner wall of the slide is provided with an outlet, a fixing cylinder is fixed inside the side groove II, a gear ring is fixed at the middle of the outer surface of the fixing cylinder, a central axis is rotatably connected inside the fixing cylinder, the front and rear ends of the central axis respectively penetrate to the front and rear of the bracket, the front and rear ends of the bracket are both provided with through grooves, a connecting plate is slidably connected inside the through groove, an arc frame is provided inside the outlet, the arc frame and the connecting plate are integrally formed, a bolt is penetrated and connected at one end of the connecting plate away from the arc frame, and the bolt is threadedly connected to the bracket;

[0011] The center of the lower surface of the bracket is provided with a second inner cavity, a turntable is rotatably connected to the lower part of the inner cavity, a mirror seat is detachably connected to the lower surface of the turntable through a second bolt, a mirror frame is fixed to the lower surface of the mirror seat, and a small prism is arranged inside the mirror frame;

[0012] The inner surface of the second inner cavity is symmetrically provided with sliding grooves front and back, and a lifting plate is slidably connected inside the two sliding grooves, and a sinker rod is fixed on the upper surface of the lifting plate, and the top of the sinker rod passes through the top of the bracket, and a longitudinal rotation rod is rotatably connected to the rear of the inner surface of the second inner cavity, and a bevel gear 1 and a spur gear 1 are fixed on the outer surface of the longitudinal rotation rod in sequence from front to back, and a vertical rotation rod is rotatably connected to the upper surface of the inner cavity, and the bevel gear 2 is meshed with the bevel gear 1, and the bottom end of the vertical rotation rod is located on the inner side of the turntable and a spur gear 2 is fixed thereto, and a screw is threadedly connected to the inside of the sinker rod above the bracket, and a contact strip is fixed on the top of the screw, and a butt ring is sleeved on the outer surface of the screw below the contact strip, and a spring is fixed between the upper surface of the bracket and the butt ring.

[0013] Furthermore, the inner wall of the turntable is provided with a plurality of tooth grooves 1, and the turntable is meshedly connected with the spur gear 2 through the tooth grooves 1; the outer surface of the sedimentation rod is provided with a plurality of tooth grooves 2, and the sedimentation rod is meshedly connected with the spur gear 1 through the tooth grooves 2.

[0014] Furthermore, the outlet is adapted to fit the slide plate.

[0015] Furthermore, the slide plate is located inside the slideway, the bracket is rotatably connected to the connecting frame through the slideway and the slide plate, and the latching teeth are matched with the gear ring.

[0016] The beneficial effects of the displacement settlement monitoring device for crossing an existing subway line during pipe jacking construction of the present invention are as follows:

[0017] During installation of the present invention, a hole is drilled in the vault to insert the anchor rod for injection or pre-embedding, so that the installation mechanism is connected and fixed to the tunnel vault, and according to the area of ​​the subway tunnel vault, an appropriate amount of installation mechanisms and positioning mechanisms are assembled to form an adaptive length of the top pipe construction on the existing line of the subway. The displacement settlement monitoring equipment is adapted for use without customization and is more flexible and convenient; when the arc plate is controlled to move inward, the latching teeth are not engaged with the gear ring, and at this time the installation mechanism and the positioning mechanism are rotatably connected, and can be rotated and adjusted according to the tunnel vault angle, and the arc plate moves outward to make the latching teeth move and engage with the corresponding gear ring, so that the installation mechanism and the positioning mechanism are fixedly connected, and the installation operation of the equipment is completed;

[0018] When a total station device is set up in the tunnel and a laser beam is emitted to illuminate the small prism, the small prism will reflect the laser beam back to the total station device. The total station device can accurately measure the position of the small prism by calculating the time difference between the emission and reception of the laser beam. When settlement occurs, the turntable and the small prism rotate under the transmission of the settlement rod, gear one, gear two and other structures. After the small prism rotates and deviates, the external total station device cannot receive the reflected laser beam, thereby determining that settlement occurs at the corresponding position, and the settlement situation can be judged based on the rotation angle of the small prism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the installation mechanism and the positioning mechanism in the present invention;

[0022] Figure 3 It is a cross-sectional structural schematic diagram of the mounting mechanism and the positioning mechanism in the present invention;

[0023] Figure 4 For the present invention Figure 3 The schematic diagram of the structure after the enlargement of A in the middle;

[0024] Figure 5 It is a structural schematic diagram of the installation mechanism in the present invention;

[0025] Figure 6 It is a structural schematic diagram of the positioning mechanism in the present invention;

[0026] Figure 7 It is a structural schematic diagram of the bracket of the present invention.

[0027] In the figure: 1, mounting mechanism; 2, positioning mechanism; 3, connecting frame; 4, slide plate; 5, side groove 1; 6, screw barrel; 7, anchor rod; 8, inner cavity 1; 9, worm; 10, rotating shaft; 11, worm wheel; 12, transmission gear; 13, rack; 14, arc plate; 15, clamping teeth; 16, screw head; 17, bracket; 18, side groove 2; 19, slideway; 20, outlet; 21, fixed barrel; 22, gear ring; 23, middle shaft; 24, through groove; 25, connecting plate; 2 6. Arc frame; 27. Bolt 1; 28. Inner cavity 2; 29. ​​Turntable; 30. Mirror base; 31. Mirror frame; 32. Small prism; 33. Bolt 2; 34. Slide; 35. Lifting plate; 36. Settling rod; 37. Vertical rotation rod; 38. Bevel gear 1; 39. Spur gear 1; 40. Vertical rotation rod; 41. Bevel gear 2; 42. Spur gear 2; 43. Tooth groove 1; 44. Tooth groove 2; 45. Screw; 46. Contact strip; 47. Buffer ring; 48. Spring. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0029] like Figure 1-5As shown, according to one aspect of the present invention, a displacement settlement monitoring device for crossing an existing subway line during pipe jacking construction is provided, which is composed of a plurality of mounting mechanisms 1 and a plurality of positioning mechanisms 2. The mounting mechanisms 1 are detachably connected to the adjacent positioning mechanisms 2. According to the area of ​​the subway tunnel vault, an appropriate amount of mounting mechanisms 1 and positioning mechanisms 2 are assembled to form a displacement settlement monitoring device for crossing an existing subway line during pipe jacking construction of an adaptable length, which is more flexible and convenient without customization.

[0030] The mounting mechanism 1 includes a connecting frame 3, side grooves 5 are provided on the left and right sides of the connecting frame 3, slide plates 4 are fixed to the left and right ends of the connecting frame 3, and a screw barrel 6 is fixed to the top of the connecting frame 3, and an anchor rod 7 is threadedly connected to the screw barrel 6. An inner cavity 8 is provided inside the connecting frame 3, and a worm 9 is rotatably connected to the inner cavity 8. Two rotating shafts 10 are rotatably connected to the left and right sides of the worm 9. A worm gear 11 is fixed to the middle of the outer surface of the rotating shaft 10, and the four worm gears 11 are meshed and connected to the worm 9. Transmission gears 12 are fixed on the front and rear sides, racks 13 are slidably connected on the left and right sides of the inner cavity 8, the opposite ends of the two racks 13 respectively penetrate into the two side grooves 5, and are fixed with arc plates 14, and the inner wall of the arc plate 14 is fixed with latch teeth 15, the transmission gear 12 is meshed and connected with the rack 13 on the same side, the bottom end of the worm 9 penetrates the lower surface of the connecting frame 3, and is fixed with a screw head 16, the exposed length of the anchor rod 7 is adjusted by rotating the anchor rod 7, and a hole is punched in the arch to insert the anchor rod 7 for injection or pre-embedding, so that the installation mechanism 1 is connected and fixed to the tunnel arch.

[0031] like Figure 3-7As shown, the positioning mechanism 2 includes a bracket 17, and side grooves 18 are provided on the left and right sides of the bracket 17. The front and rear surfaces of the side grooves 18 are provided with through slideways 19, and the inner wall of the slideway 19 is provided with an outlet 20. A fixed cylinder 21 is fixed inside the side grooves 18, and a gear ring 22 is fixed in the middle of the outer surface of the fixed cylinder 21. A central axis 23 is rotatably connected inside the fixed cylinder 21. The front and rear ends of the central axis 23 respectively penetrate the front and rear sides of the bracket 17. Through grooves 24 are provided at the front and rear ends of the bracket 17, and a connecting plate 25 is slidably connected inside the through grooves 24. An arc frame 26 is provided inside the outlet 20, and the arc frame 26 and the connecting plate 25 are integrally formed. A bolt 27 is penetrated and connected to the end of the connecting plate 25 away from the arc frame 26, and the bolt 27 is connected to the bracket. 17 is threadedly connected, the latching teeth 15 are matched with the toothed ring 22, the slide plate 4 is located inside the slideway 19, the bracket 17 is rotatably connected with the connecting frame 3 through the slideway 19 and the slide plate 4, the screw head 16 is turned to rotate the worm 9, and the transmission gear 12 is rotated under the transmission of the two worm gears 11, and the arc plates 14 on both sides are driven outward or inward by the rack 13. When the arc plates 14 move inward, the latching teeth 15 are not engaged with the toothed ring 22. At this time, the installation mechanism 1 and the positioning mechanism 2 are rotatably connected (through the slide plate 4 sliding on the slideway 19), and can be rotated and adjusted according to the tunnel vault angle. The arc plate 14 moves outward to make the latching teeth 15 move and engage with the corresponding toothed ring 22. At this time, the installation mechanism 1 is fixedly connected with the positioning mechanism 2 to complete the installation operation of the equipment;

[0032] The outlet 20 is matched with the slide plate 4. When the bolt 27 is pulled out, the arc frame 26 is separated from the outlet 20 by sliding the connecting plate 25. Then, the middle shaft 23 is rotated to rotate the connecting plate 25 and the arc frame 26 away from the outlet 20. At this time, the outlet 20 is exposed, and the slide plate 4 can be slid out or put in, so that the installation mechanism 1 and the positioning mechanism complete the disassembly and installation operations.

[0033] like Figure 3 As shown, a second inner cavity 28 is provided at the center of the lower surface of the bracket 17, a turntable 29 is rotatably connected to the lower part of the inner cavity 28, a mirror seat 30 is disassembled and connected to the lower surface of the turntable 29 through a second bolt 33, a mirror frame 31 is fixed to the lower surface of the mirror seat 30, a small prism 32 is arranged inside the mirror frame 31, when a laser beam is emitted from a total station device set up in the tunnel to irradiate the small prism 32, the small prism 32 will reflect the laser beam back to the total station device, and the total station device can accurately measure the position of the small prism 32 by calculating the time difference between the emission and reception of the laser beam, and the laser transmitter can also be installed on the rear surface of the small prism 32 according to needs, after different groups of equipment are installed in parallel, the front group of equipment can emit laser to the small prism 32 in the rear equipment, and personnel can observe the direction of the laser line to judge the settlement situation;

[0034] The inner surface of the second inner cavity 28 is symmetrically provided with slide grooves 34, and a lifting plate 35 is slidably connected inside the two slide grooves 34. A sinking rod 36 is fixed on the upper surface of the lifting plate 35, and the top of the sinking rod 36 passes through the top of the bracket 17. The rear surface of the inner surface of the second inner cavity 28 is rotatably connected with a longitudinal rotation rod 37, and the outer surface of the longitudinal rotation rod 37 is fixed with a bevel gear 1 38 and a spur gear 1 39 in sequence from front to back. The upper surface of the inner cavity 28 is rotatably connected with a vertical rotation rod 40, and a bevel gear 2 41 is meshed with the bevel gear 1 38. The bottom end of the vertical rotation rod 40 is located on the inner side of the turntable 29 and is fixed with a spur gear 2 42 The interior of the settlement rod 36 is located above the bracket 17 and is threadedly connected with a screw rod 45, a contact strip 46 is fixed to the top of the screw rod 45, and a retaining ring 47 is sleeved on the outer surface of the screw rod 45 below the contact strip 46. A spring 48 is fixed between the upper surface of the bracket 17 and the retaining ring 47. The retaining ring 47 fits with the lower surface of the contact strip 46 under the push of the spring 48. The personnel can adjust the distance between the contact strip 46 and the bracket 17 by rotating the screw rod 45, so that the contact strip 46 can ensure contact with the arch. When the arch settles, the contact strip 46 will be pushed to make the screw rod 45 and the settlement rod 36 slide downward.

[0035] like Figure 4 As shown, the inner wall of the turntable 29 is provided with a plurality of tooth grooves 43, and the turntable 29 is meshed and connected with the spur gear 2 42 through the tooth grooves 43; the outer surface of the settlement rod 36 is provided with a plurality of tooth grooves 44, and the settlement rod 36 is meshed and connected with the spur gear 1 39 through the tooth grooves 44. When the settlement rod 36 descends, the spur gear 1 39 drives the longitudinal rotation rod 37 and the bevel gear 1 38 to rotate through the tooth grooves 44, and when the spur gear 2 42 is rotated through the transmission of the bevel gear 2 41 and the vertical rotation rod 40, the turntable 29 and the small prism 32 are rotated through the tooth grooves 43. After the small prism 32 rotates and deviates, the external total station equipment cannot receive the laser beam reflection, thereby determining that the corresponding position has settled, and the settlement can be judged according to the rotation angle of the small prism 32.

[0036] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A displacement settlement monitoring device for crossing an existing subway line during pipe jacking construction, comprising a plurality of mounting mechanisms (1) and a plurality of positioning mechanisms (2), characterized in that: The mounting mechanism (1) is detachably connected to the positioning mechanism (2), and the mounting mechanism (1) comprises a connecting frame (3), and the connecting frame (3) is provided with side grooves (5) on both sides, and slide plates (4) are fixed to the left and right ends of the connecting frame (3) located in front and behind the two side grooves (5), and a screw barrel (6) is fixed to the top of the connecting frame (3), and the screw barrel (6) is internally threadedly connected to an anchor rod (7), and an inner cavity (8) is provided inside the connecting frame (3), and a worm (9) is rotatably connected inside the inner cavity (8), and the inner cavity (8) is located on the left and right sides of the worm (9) and is rotatably connected to the worm (9). There are two rotating shafts (10), a worm wheel (11) is fixed in the middle of the outer surface of the rotating shaft (10), and the four worm wheels (11) are all meshed with the worm (9). Transmission gears (12) are fixed on the front and rear sides of the outer surface of the rotating shaft (10), and racks (13) are slidably connected on the left and right sides of the inner cavity (8). The opposite ends of the two racks (13) respectively penetrate into the inside of the two side grooves (5) and are fixed with arc plates (14). The inner wall of the arc plate (14) is fixed with latch teeth (15), and the transmission gear (12) is meshed with the racks (13) on the same side.

2. According to claim 1, a displacement and settlement monitoring device for pipe jacking construction over an existing subway line, characterized in that: The bottom end of the worm (9) penetrates through the lower surface of the connecting frame (3) and is fixed with a screw head (16).

3. The displacement and settlement monitoring device for pipe jacking construction over an existing subway line according to claim 1 is characterized by: The positioning mechanism (2) comprises a bracket (17), the left and right sides of the bracket (17) are both provided with side grooves (18), the front and rear surfaces of the inside of the side groove (18) are both provided with through-type slideways (19), the inner wall of the slideway (19) is provided with an outlet (20), a fixed cylinder (21) is fixed inside the side groove (18), a gear ring (22) is fixed in the middle of the outer surface of the fixed cylinder (21), a central shaft (23) is rotatably connected inside the fixed cylinder (21), and the central shaft (23) is provided inside the fixed cylinder (21). 23) The front and rear ends respectively penetrate to the front and rear sides of the bracket (17), the front and rear ends of the bracket (17) are penetrated with through grooves (24), a connecting plate (25) is slidably connected inside the through groove (24), an arc frame (26) is provided inside the outlet (20), the arc frame (26) and the connecting plate (25) are integrally formed, and a bolt (27) is penetrated and connected at one end of the connecting plate (25) away from the arc frame (26), and the bolt (27) is threadedly connected to the bracket (17); A second inner cavity (28) is provided at the center of the lower surface of the bracket (17); a turntable (29) is rotatably connected to the lower portion of the second inner cavity (28); a mirror base (30) is detachably connected to the lower surface of the turntable (29) via a second bolt (33); a mirror frame (31) is fixed to the lower surface of the mirror base (30); and a small prism (32) is arranged inside the mirror frame (31); The inner surface of the second inner cavity (28) is symmetrically provided with slide grooves (34) at the front and rear sides. A lifting plate (35) is slidably connected inside the two slide grooves (34). A sinking rod (36) is fixed on the upper surface of the lifting plate (35). The top of the sinking rod (36) passes through the upper part of the bracket (17). The inner surface of the second inner cavity (28) is rotatably connected to a longitudinal rotation rod (37). The outer surface of the longitudinal rotation rod (37) is fixed with a bevel gear (38) and a spur gear (39) in sequence from front to back. The upper surface of the inner cavity (28) is rotatably connected to a vertical rotation rod. (40), the bevel gear 2 (41) is meshingly connected with the bevel gear 1 (38), the bottom end of the vertical rotating rod (40) is located inside the rotating disk (29) and is fixed with a spur gear 2 (42), the interior of the settling rod (36) is located above the bracket (17) and is threadedly connected with a screw rod (45), the top of the screw rod (45) is fixed with a contact strip (46), the outer surface of the screw rod (45) is located below the contact strip (46) and is sleeved with a retaining ring (47), and a spring (48) is fixed between the upper surface of the bracket (17) and the retaining ring (47).

4. The displacement and settlement monitoring device for pipe jacking construction over an existing subway line according to claim 3 is characterized by: The inner wall of the rotating disk (29) is provided with a plurality of tooth grooves (43), and the rotating disk (29) is meshedly connected with the spur gear (42) through the tooth grooves (43); the outer surface of the sinking rod (36) is provided with a plurality of tooth grooves (44), and the sinking rod (36) is meshedly connected with the spur gear (39) through the tooth grooves (44).

5. The displacement and settlement monitoring device for pipe jacking construction over an existing subway line according to claim 3 is characterized by: The outlet (20) is adapted to the slide plate (4).

6. The displacement and settlement monitoring device for pipe jacking construction over an existing subway line according to claim 3 is characterized by: The slide plate (4) is located inside the slideway (19), the bracket (17) is rotatably connected to the connecting frame (3) through the slideway (19) and the slide plate (4), and the latching teeth (15) are matched with the gear ring (22).

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