Prism integrated shield tunnel measuring point lossless mounting device

Abstract

The invention relates to a prism integrated shield tunnel measuring point lossless installation device which comprises a three-jaw female seat, a hoop, a prism support, a prism seat and a prism. The prism is installed on the prism table, the prism table is installed at the top end of the prism support, and the bottom end of the prism support is fixed to the top of the three-jaw female base. And the bottom of the three-jaw female seat is sleeved outside the existing bolt and is fastened through a peripheral hoop. According to the method, lossless installation can be conducted based on bolts of any model reserved in the construction process of shield engineering, the duct piece does not need to be punched, damage to the appearance and the concrete structure of the tunnel duct piece in an existing installation mode is avoided, potential safety hazards caused by a traditional installation method to duct piece materials are avoided, and the construction efficiency is improved. The installation purpose can be achieved through field tests; in addition, according to the device, a lossless installation assembly and the prism are combined, the prism does not need to be additionally assembled, installation is convenient and fast, the learning cost is low, and the monitoring construction period is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of shield tunnel deformation monitoring, and in particular to a prism-integrated shield tunnel measuring point non-destructive installation device. Background Art

[0002] The shield method is one of the most advanced construction methods for building underground tunnels. It uses a shield machine to dig underground. Under the protection of the shield, excavation and lining operations are safely carried out inside the machine to build a tunnel. It is suitable for construction under a variety of engineering hydrogeological conditions. The pipe segment is one of the main structures of the shield tunnel, and its deformation is directly related to the stability and safety of the tunnel. Therefore, during the construction of the shield tunnel, it is necessary to monitor the deformation of the pipe segment to promptly detect and deal with possible cracks, deformation and other problems. By monitoring and analyzing the deformation of the pipe segment, important data support can be provided for subsequent maintenance and management.

[0003] To continuously monitor the health of shield segments, it is necessary to arrange measuring points on the shield segments and install measuring point devices at the measuring points. The deformation monitoring data of the shield segments can be quickly and in real time obtained through a level or a total station. However, the existing shield tunnel measuring points all require drilling holes on the side walls of the segments and fixing them with screws to the side walls of the segments, which inevitably damages the appearance of the segments and has an adverse effect on the concrete structure of the segments. The vibration generated during drilling is also very detrimental to the safety of the segment materials. In addition, the prism and measuring point devices need to be installed separately, which increases the difficulty of arranging the measuring points.

[0004] Therefore, it is necessary to propose new measures to overcome the above-mentioned defects. Summary of the invention

[0005] The purpose of the present invention is to provide a prism-integrated shield tunnel measuring point non-destructive installation device to avoid the adverse effects of drilling installation on the pipe segment and solve the problem of increased difficulty in arranging measuring points caused by the additional installation of prisms.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A prism-integrated shield tunnel measuring point non-destructive installation device, the device comprising a three-claw mother seat, a hoop, a prism bracket, a prism seat and a prism;

[0008] The prism is mounted on the prism seat, the prism seat is mounted on the top of the prism bracket, and the bottom end of the prism bracket is fixed on the top of the three-claw mother seat;

[0009] The bottom of the three-claw female seat is sleeved outside the existing bolt and is fastened by the ring hoop on the outer periphery.

[0010] Furthermore, the prism bracket is a curved bracket, the bottom of the prism bracket is vertically arranged, and the top of the prism bracket is horizontally arranged.

[0011] Furthermore, a connecting shaft is provided on the top of the prism bracket, and a connecting hole is provided on the side of the prism seat. The prism seat is installed on the connecting shaft from the side through the connecting hole and is fastened by a fixing nut on the side of the prism seat at the periphery.

[0012] Furthermore, a reversing gear is provided on the connecting shaft.

[0013] Furthermore, a chuck is provided at the bottom of the prism bracket, the chuck is located at the top of the three-jaw female seat, and is fastened by an upper limit nut on the periphery;

[0014] The top of the upper limit nut is provided with a ring cover, and the ring cover covers the top of the chuck.

[0015] Furthermore, the bottom of the three-claw base has three inward-retracted L-shaped claws, and the three L-shaped claws are closely attached to the outside of the existing bolt and are fastened by the ring hoop on the outer periphery.

[0016] Furthermore, the top of the three-claw female seat is a connecting ring with external threads, and the middle part is a compression ring;

[0017] The upper limit nut is installed on the upper part of the connecting ring, and the lower part of the connecting ring and the outside of the pressure ring are provided with a lower limit nut.

[0018] Furthermore, an internal threaded hole into which the existing bolt can be screwed is provided on the central axis of the connecting ring.

[0019] Furthermore, a downwardly protruding snap ring is provided at the bottom of the chuck, and correspondingly, a downwardly recessed ring groove is provided at the top of the connecting ring, and the snap ring is embedded in the ring groove.

[0020] Furthermore, the top outer edge of the ring hoop is provided with an upwardly protruding ring platform, and correspondingly, the bottom outer side of the lower limit nut is provided with an outwardly protruding clamping platform;

[0021] The lower limit nut is located above the ring hoop, the bottom of the lower limit nut is located on the inner side of the ring platform, and the clamping platform is located on the top of the ring platform.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a prism-integrated shield tunnel measuring point non-destructive installation device, which can be non-destructively installed based on any type of bolts retained during the construction of the shield project, does not require drilling holes in the segments, avoids the damage to the appearance and concrete structure of the tunnel segments by existing installation methods, and circumvents the safety hazards of traditional installation methods to segment materials. The installation purpose can be achieved after field tests.

[0024] In addition, the device of the present invention combines the non-destructive installation component with the prism, and there is no need to assemble the prism separately. The installation is convenient, the learning cost is low, and the monitoring construction period is shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a front structural diagram of the present invention.

[0027] Figure 2 It is a back structural diagram of the present invention.

[0028] Figure 3 It is a side structural diagram of the present invention.

[0029] Figure 4 It is a planar structural diagram of the present invention.

[0030] Figure 5 It is a bottom structure diagram of the present invention.

[0031] Figure 6 yes Figure 3 AA section view in.

[0032] Figure 7 It is a three-dimensional structural diagram of the present invention.

[0033] Figure 8 It is a decomposition structure diagram of the present invention.

[0034] Fig. 9 This is a side structural diagram of the three-claw mother seat.

[0035] Fig.10 This is another side structural diagram of the three-claw mother seat.

[0036] Fig.11 This is the end structure diagram of the three-claw mother seat.

[0037] Fig.12It is a three-dimensional structural diagram of the prism bracket.

[0038] The symbols in the figure are:

[0039] 1-prism seat, 2-prism bracket, 3-prism, 4-upper limit nut, 5-three-claw mother seat, 6-lower limit nut, 7-hoop, 8-installation top screw, 9-prism seat side fixing nut, 10-existing bolt;

[0040] 21-chuck, 22-connecting shaft, 23-reversing gear, 24-snapping ring;

[0041] 41-ring cover;

[0042] 51-L-shaped claw, 52-pressure ring, 53-connecting ring, 54-ring cavity, 55-internal thread hole;

[0043] 61-card table;

[0044] 71-Ring Taiwan. DETAILED DESCRIPTION

[0045] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0046] In the description of the present invention, it is necessary to understand that the terms "central axis", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "setting" and the like should be understood in a broad sense, for example, it can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In a specific implementation, Figure 1 The direction from top to bottom is defined as vertical. Figure 1 The direction from left to right in the image is defined as horizontal.

[0049] In order to monitor the safety of shield segments, it is necessary to set measuring points on the inner wall of the lining for installing measuring instruments to collect monitoring information. The present invention provides a prism-integrated shield tunnel measuring point non-destructive installation device, which can be installed with the help of existing bolts 10 in the lining, without the need for destructive operations such as drilling holes on the segments, to achieve the purpose of non-destructive installation, without any impact on on-site construction and later operations, and directly integrates the prism assembly in the device, no longer needs to install a prism separately, and the installation efficiency is higher.

[0050] Specifically, Figure 1-8 The device includes, from bottom to top, a three-claw mother seat 5, a hoop 7, a lower limit nut 6, an upper limit nut 4, a prism bracket 2, a prism seat 1 and a prism 3.

[0051] The combination of the prism bracket 2, the prism seat 1 and the prism 3 is the prism assembly, which is located at the top of the entire device. The top of the prism seat 1 has a mounting screw 8 for installing and removing the prism seat 1 to prevent the prism seat 1 from falling off. The prism 3 is mounted on the side of the prism seat 1, and the prism seat 1 is mounted on the top of the prism bracket 2. The prism bracket 2 is a curved bracket, which is a nearly L-shaped cylindrical support column, with a vertical bottom and a horizontal top, which is bent to one side from bottom to top and transitions smoothly. The design of the curved bracket can avoid the obstruction of the hand hole, etc., so that the prism 3 can be fully exposed, and the height of the overall structure can be reduced. A connecting shaft 22 is provided at the top of the prism bracket 2, and the end of the connecting shaft 22 close to the prism bracket 2 has an external thread, and the connecting shaft 22 is arranged horizontally. Correspondingly, a connecting hole is provided on the side of the prism seat 1, and the prism seat 1 is installed on the connecting shaft 22 from the side through the connecting hole, and is fastened by the peripheral prism seat side fixing nut 9. The prism seat 1 and the prism 3 do not need to be assembled manually, and the finished product is pre-assembled. After loosening the fixing nut 9 on the side of the prism seat to a certain extent, the prism seat 1 can be rotated 360 degrees in the vertical plane.

[0052] In addition, if Fig.12 A reversing gear 23 is provided on the connecting shaft 22, and two reversing gears 23 are provided coaxially in front and behind with opposite directions. Each reversing gear 23 has a total of 11 teeth, and the interval angle that can be changed is 360° / 11.

[0053] The bottom end of the prism bracket 2 is fixed to the top of the three-claw mother seat 5. Specifically, a chuck 21 is provided at the bottom of the prism bracket 2, and the diameter of the chuck 21 is larger than the diameter of its upper structure. The chuck 21 is located at the top of the three-claw mother seat 5 and is fastened by the upper limit nut 4 on the periphery. The top of the upper limit nut 4 has a ring cover 41, and the ring cover 41 has a central opening. The bottom end of the prism bracket 2 is located in the hole, and the ring cover 41 covers the top of the chuck 21. The upper limit nut 4 plays a role in fixing the prism bracket 2. At the same time, after loosening the upper limit nut 4 to a certain extent, the chuck 21 can be rotated under the ring cover 41, so that the prism bracket 2 can rotate 360 ​​degrees in the horizontal plane.

[0054] The bottom of the three-claw female seat 5 is sleeved outside the existing bolt 10 and is fastened by the outer ring hoop 7. Specifically, Figure 9-11 The bottom of the three-claw base 5 has three inward-retracted L-shaped claws 51, which adopt a biomimetic claw structure and can firmly grasp and fix the existing bolt 10. The three L-shaped claws 51 are close to the outside of the existing bolt 10 and are fastened by the outer ring hoop 7. There is a gap between the three L-shaped claws 51, which allows the L-shaped claws 51 to move freely in the radial direction within a certain range. The top of the three-claw base 5 is a connecting ring 53 with external threads, and the middle part is a pressure ring 52. The pressure ring 52 shrinks inward and presses on the top of the existing bolt 10. The upper limit nut 4 is installed on the upper part of the connecting ring 53, and the lower limit nut 6 is arranged on the lower part of the connecting ring 53 and outside the pressure ring 52.

[0055] In addition, an internal thread hole 55 into which the existing bolt 10 can be screwed is provided on the central axis of the connecting ring 53. During installation, the top of the existing bolt 10 is screwed into the internal thread hole 55, and the connection is tighter.

[0056] The outer wall of the L-shaped claw 51 is inclined outward from top to bottom, and correspondingly, the inner wall of the hoop 7 is inclined outward from top to bottom. When the lower limit nut 6 is rotated, the lower limit nut 6 moves downward and pushes the hoop 7 downward, and the hoop 7 will continue to apply pressure toward the center to the L-shaped claw 51, so that the bottom of the three-claw mother seat 5 is fastened to the existing bolt 10. Such a structure makes the installation space at the bottom of the device variable and can adapt to all bolt models of existing shield engineering.

[0057] In other embodiments, a downwardly protruding snap ring 24 is further provided at the bottom of the chuck 21, and correspondingly, a downwardly recessed ring groove is provided at the top of the connecting ring 53, and the snap ring 24 is embedded in the ring groove to limit each other, making the connection between the upper and lower structures more reliable.

[0058] In other embodiments, the top outer edge of the hoop 7 is provided with an upwardly protruding ring platform 71, and correspondingly, the bottom outer side of the lower limit nut 6 is provided with an outwardly protruding clamping platform 61. The lower limit nut 6 is located above the hoop 7, the bottom of the lower limit nut 6 is located on the inner side of the ring platform 71, and the clamping platform 61 is located on the top of the ring platform 71, which can also make the connection between the upper and lower structures more reliable.

[0059] The specific installation process of this device is:

[0060] (1) First, buckle the three-claw nut 5 onto the nut of the existing bolt 10;

[0061] (2) buckle the hoop 7 onto the outside of the L-shaped claw 51 of the three-claw base 5;

[0062] (3) Insert the lower limit nut 6 onto the thread of the connecting ring 53 of the three-claw nut 5 and tighten it;

[0063] (4) Insert the prism bracket 2 into the upper limit nut 4, and the chuck 21 is located below the ring cover 41;

[0064] (5) Screw the assembled upper limit nut 4 and prism bracket 2 into the thread of the connecting ring 53 of the three-claw female seat 5, adjust the angle and tighten;

[0065] (6) Loosen the positioning nut 9 on the side of the prism seat, adjust the angle of the prism seat 1, and tighten it.

[0066] The device of the present invention can meet the installation requirements after field tests. It combines the non-destructive installation components with the prism, and there is no need to assemble the prism separately. At the same time, it avoids the damage to the appearance and concrete structure of the tunnel segment by the existing installation method, and avoids the safety hazards of the traditional installation method to the segment material. It is easy to install and has a low learning cost. It can effectively shorten the monitoring construction period and is reusable. Any parts can be replaced. It has obvious technical advantages in monitoring construction.

[0067] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. Prism integrated shield tunnel measuring point non-destructive installation device, characterized by: The device comprises a three-claw mother seat (5), a hoop (7), a prism bracket (2), a prism seat (1) and a prism (3); The prism (3) is mounted on the prism seat (1), the prism seat (1) is mounted on the top end of the prism bracket (2), and the bottom end of the prism bracket (2) is fixed on the top of the three-claw female seat (5); The bottom of the three-claw female seat (5) is sleeved outside the existing bolt (10) and is fastened by the outer ring hoop (7).

2. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 1 is characterized in that: The prism bracket (2) is a curved bracket, the bottom of the prism bracket (2) is arranged vertically, and the top of the prism bracket (2) is arranged horizontally.

3. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 2 is characterized in that: The top of the prism bracket (2) is provided with a connecting shaft (22), and the side of the prism seat (1) is provided with a connecting hole. The prism seat (1) is installed on the connecting shaft (22) from the side through the connecting hole and is fastened by a prism seat side fixing nut (9) on the periphery.

4. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 3 is characterized in that: A reversing gear (23) is arranged on the connecting shaft (22).

5. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 4 is characterized in that: A chuck (21) is provided at the bottom of the prism bracket (2), and the chuck (21) is located on the top of the three-claw female seat (5) and is fastened by an upper limit nut (4) on the outer periphery; The top of the upper limit nut (4) is provided with a ring cover (41), and the ring cover (41) covers the top of the chuck (21).

6. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 5 is characterized in that: The bottom of the three-claw female seat (5) has three inward-retracted L-shaped claws (51), and the three L-shaped claws (51) are closely attached to the outside of the existing bolt (10) and are fastened by the outer ring hoop (7).

7. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 6 is characterized in that: The top of the three-claw female seat (5) is a connecting ring (53) with external threads, and the middle is a pressure ring (52); The upper limit nut (4) is installed on the upper part of the connecting ring (53), and the lower part of the connecting ring (53) and the outside of the pressure ring (52) are provided with a lower limit nut (6).

8. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 7 is characterized in that: An internal threaded hole (55) capable of being screwed into the existing bolt (10) is provided on the central axis of the connecting ring (53).

9. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 8, characterized in that: The bottom of the chuck (21) is provided with a downwardly protruding snap ring (24), and correspondingly, the top of the connecting ring (53) is provided with a downwardly recessed annular groove, and the snap ring (24) is embedded in the annular groove.

10. The prism-integrated shield tunnel measuring point non-destructive installation device according to claim 9, characterized in that: The top outer edge of the hoop (7) is provided with an upwardly protruding ring platform (71), and correspondingly, the bottom outer side of the lower limit nut (6) is provided with an outwardly protruding clamping platform (61); The lower limit nut (6) is located above the hoop (7), the bottom of the lower limit nut (6) is located on the inner side of the ring platform (71), and the clamping platform (61) is located on the top of the ring platform (71).

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