CN113532382A - Top-adhesive tunnel top wall settlement monitoring mechanism and tunnel top wall settlement monitoring method - Google Patents

Top-adhesive tunnel top wall settlement monitoring mechanism and tunnel top wall settlement monitoring method Download PDF

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Publication number
CN113532382A
CN113532382A CN202110947346.2A CN202110947346A CN113532382A CN 113532382 A CN113532382 A CN 113532382A CN 202110947346 A CN202110947346 A CN 202110947346A CN 113532382 A CN113532382 A CN 113532382A
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China
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top wall
bowl
tunnel
mounting seat
vertical
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CN202110947346.2A
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Chinese (zh)
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郑琼华
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Individual
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
    • F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The invention relates to a top-sticking tunnel top wall settlement monitoring mechanism which comprises a hanging cylinder, a guy cable, a vertical comparison rod and an annular indicating needle, wherein the upper end of the guy cable is connected with the hanging cylinder, the vertical comparison rod is connected to the lower end of the guy cable and is provided with a vertically arranged scale, the annular indicating needle is sleeved on the vertical comparison rod and is matched with the scale, the indicating needle is provided with a mounting seat, a storage bowl is arranged on the top wall of the hanging cylinder, the storage bowl is provided with a storage bowl through hole, the storage bowl through hole is sealed by a sealing bowl capable of being bent upwards, and the top wall of the hanging cylinder is provided with a hanging cylinder through hole aligned with the sealing bowl. The method has the advantage that field personnel can intuitively know the sinking displacement in real time, and the problem that the sinking displacement at the top of the tunnel surrounding rock can not be found in time only through regular inspection by professional personnel is solved.

Description

Top-adhesive tunnel top wall settlement monitoring mechanism and tunnel top wall settlement monitoring method
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a top-adhesive tunnel top wall settlement monitoring mechanism and a tunnel top wall settlement monitoring method.
Background
When the surrounding rock stability is poor, because engineering disturbance and groundwater activity, tunnel roof surrounding rock takes place to roof fall easily and destroys the transition promptly and subsides, need monitor the subside of tunnel roof among the solid tunnel work progress to carry out the early warning to too big displacement. The existing settlement detection is that a professional carries out regular measurement, a site constructor is difficult to know the displacement of surrounding rocks, the working time of the constructor on the construction site is longest, and if the constructor can also know the settlement of a tunnel intuitively, the constructor can find the settlement in time, find danger in time and remove the danger in time and has important significance for safe production.
Disclosure of Invention
The invention aims to provide a top-adhesive tunnel top wall settlement monitoring mechanism which can visually know the settlement displacement in real time by field personnel, and solves the problem that the settlement displacement of the top of tunnel surrounding rock can not be found in time only through regular inspection by professional personnel.
The above problems are solved by the following technical solutions: the utility model provides a top glues formula tunnel roof settlement monitoring mechanism, a serial communication port, including hang a section of thick bamboo, upper end with hang a cable that a section of thick bamboo links together, connect the perpendicular contrast pole of establishing the scale of putting of cable lower extreme and establish in the perpendicular contrast pole with scale complex annular pointer, the pointer is equipped with the mount pad, store the bowl on the roof of a section of thick bamboo of hanging, it is equipped with storage bowl portion through-hole to store the bowl portion, it is sealed by the sealed bowl that can upwards buckle to store bowl portion through-hole, the roof of a section of thick bamboo of hanging is equipped with the section of thick bamboo through-hole that hangs that sealed bowl aligns. Can be reliable will hang a section of thick bamboo and pass through cement and fix in the vertical mounting hole of tunnel roof.
Preferably, the upper end of the storage bowl extends beyond the suspension cylinder along the radial direction of the storage cylinder. Can avoid cement to spill over dirty hanging section of thick bamboo.
Preferably, a flexible layer is paved in the storage bowl, the part of the flexible layer, which is positioned in the through hole of the storage bowl part, forms the sealing bowl, the flexible layer is only fixed with the bowl opening of the storage bowl, and the periphery of the flexible layer crosses the bowl opening of the storage bowl to form a skirt edge. Can conveniently realize the recovery and reuse of the hanging cylinder and the storage bowl.
The invention also comprises a mounting tool of the suspension cylinder, wherein the mounting tool of the suspension cylinder comprises a hollow outer ejector rod and an inner ejector rod penetrating into the outer ejector rod, the upper end of the outer ejector rod is provided with a top sleeve for pushing the top wall of the suspension cylinder, and the upper end of the inner ejector rod is provided with a supporting plate which is positioned in the top sleeve and used for pushing the sealing bowl. The convenience in mounting the suspension cylinder can be improved.
Preferably, the vertical alignment rod is provided with a cable through hole penetrating through the vertical alignment rod along the length direction of the vertical alignment rod, the lower end of the vertical alignment rod is provided with a threaded sleeve, a horizontal gap communicated with the cable through hole is formed between the threaded sleeve and the lower end face of the vertical alignment rod, the lower end of the cable penetrates through the cable through hole and then penetrates through the horizontal gap, and the threaded sleeve is internally and threadedly connected with a cable fixing nut clamping the cable on the lower end face of the vertical alignment rod. During the use, loosen cable fixation nut, adjust the distance between vertical ratio antithetical couplet pole and the hanging section of thick bamboo to needs, then lock cable fixation nut and fix the cable with the pole to the vertical ratio. The distance between the vertical alignment rod and the suspension cylinder is adjustable, and convenience in installation can be improved.
The tunnel top wall settlement alarm device further comprises a power supply, an alarm, a conducting ring and a conducting block, wherein the power supply, the alarm, the conducting ring and the conducting block are connected in series, the conducting ring is connected to the mounting seat, the lower end of the conducting ring protrudes out of the mounting seat, the conducting block is connected to the vertical comparison rod, the conducting ring is sleeved on the vertical comparison rod, and the spacing distance between the conducting ring and the conducting block is the maximum allowable value of the settlement of the tunnel top wall. The alarm reminding can be carried out when the sedimentation amount reaches the maximum allowable value, so that the situation that the sedimentation amount cannot be found in time is prevented.
Preferably, the vertical alignment rod is provided with a vertically extending magnet strip, the conductive block is made of a ferromagnetic material, and the conductive block is adsorbed on the magnet strip and is fixed on the vertical alignment rod. It is achieved that the position of the conductive block can be conveniently moved. The monitoring alarm can be carried out when the maximum value of the settlement amount of the corresponding tunnel changes, and the universality is good.
Preferably, the mounting seat is of a tubular structure, the indicating needle is connected to the lower end face of the mounting seat, a plurality of elastic supporting legs distributed along the circumferential direction of the mounting seat are arranged on the outer circumferential face of the mounting seat, the elastic supporting legs are obliquely arranged in a state that the lower ends of the elastic supporting legs are far away from the mounting seat, the upper ends of the elastic supporting legs are connected with the mounting seat, the inhaul cable penetrates through the mounting seat, and the vertical comparison rod can be inserted into the mounting seat. The fixing of the graduated scale can be conveniently realized by fixing the mounting seat.
The invention also provides a method for monitoring the settlement of the top wall of the tunnel, which comprises the following steps of firstly, drilling a vertical mounting hole on the top wall of the tunnel, wherein the depth of the vertical mounting hole is more than 1 m; secondly, installing the suspension cylinder into the upper end of the vertical installation hole: filling cement slurry into the storage bowl, lifting the suspension cylinder to the upper end of the vertical mounting hole until the storage bowl is abutted against the top wall of the vertical mounting hole, jacking the sealing bowl to enable the cement slurry in the storage bowl to overflow, and bonding the storage bowl and the vertical mounting hole together after the cement slurry overflows; and thirdly, fixing the mounting seat in the lower port of the vertical mounting hole, aligning the scale mark 0 of the graduated scale on the vertical comparison rod with the indicating needle, and reading the scale vertical of the graduated scale aligned with the indicating needle to acquire the settlement of the top wall of the tunnel in the monitoring process.
Preferably, in the third step, the distance between the conductive block and the conductive ring is equal to the maximum allowable value of the settlement of the top wall of the tunnel, when the top wall of the tunnel sinks, the indicating needle, the mounting seat and the conductive ring synchronously descend together, and the conductive ring and the conductive block are attached together to form a closed loop, and at the moment, the alarm gives an alarm, so that an operator can timely know that the maximum allowable amount of the settlement of the top wall of the tunnel is reached.
Preferably, the method for fixing the mounting seat in the vertical mounting hole comprises the following steps: a plurality of supporting pits with planar lower end surfaces are arranged on the peripheral surface of the lower end of the vertical mounting hole, the side surface of the supporting pit along the horizontal direction and the peripheral surface of the vertical mounting hole are in inclined surface transition, and the elastic supporting legs are supported on the lower end surfaces of the supporting pits to connect the mounting seat in the vertical mounting hole; when the mounting seat is taken out, the mounting seat is rotated to enable the supporting concave pits to extrude the elastic supporting legs along the side surfaces in the horizontal direction so as to enable the elastic supporting legs to be folded and separated from the supporting concave pits, and then the mounting seat is pulled down. The mounting seat can be reliably fixed, and labor is saved when the mounting seat is recovered.
Compared with the prior art, the invention has the beneficial effects that: the settlement amount can be known in time, and the settlement can be reliably fixed.
Drawings
FIG. 1 is a schematic view of a top wall settlement monitoring mechanism of a top-adhesive tunnel in use;
FIG. 2 is an enlarged schematic view of the suspension cylinder;
FIG. 3 is an enlarged schematic view of the vertical alignment rod;
fig. 4 is a schematic view of the mounting of the suspension cartridge.
In the figure: the suspension cylinder comprises a suspension cylinder 1, a stay cable 2, a graduated scale 3, a vertical comparison rod 4, an indicating needle 5, a mounting seat 6, a stay cable through hole 19, a threaded sleeve 20, a stay cable fixing nut 21, a conductive ring 22, a conductive block 23, a magnet strip 24, elastic supporting legs 25, a tunnel top wall 26, a vertical mounting hole 27, a supporting pit 29, a storage bowl 31, a storage bowl through hole 32, a sealing bowl 33, a suspension cylinder through hole 34, the upper end 35 of the storage bowl, a skirt 36, an outer ejector rod 37, an inner ejector rod 38, an ejector sleeve 39, a supporting plate 40, a transverse pull rope 41 and cement slurry 42.
Detailed Description
Referring to fig. 1 to 4, the top adhesion type tunnel top wall settlement monitoring mechanism is characterized by comprising a hanging cylinder 1, a guy cable 2 with the upper end connected with the hanging cylinder, a vertical comparison rod 4 connected with a scale 3 arranged vertically at the lower end of the guy cable, and an annular indicating needle 5 sleeved on the vertical comparison rod and matched with the scale. The pointer is provided with a mounting seat 6.
Store bowl 31 on the roof of a section of thick bamboo of hanging, store the bowl and be equipped with and store bowl portion through-hole 32, store bowl portion through-hole and sealed by the sealed bowl 33 that can upwards buckle, hang the roof of a section of thick bamboo and be equipped with the section of thick bamboo through-hole 34 that hangs that sealed bowl aligns. The upper end 35 of the storage bowl extends beyond the suspension cartridge in the radial direction of the storage cartridge. The storage bowl is internally paved with a flexible layer, the part of the flexible layer, which is positioned in the through hole of the storage bowl part, forms the sealing bowl, the flexible layer is only fixed with the bowl opening of the storage bowl, and the periphery of the flexible layer crosses over the bowl opening of the storage bowl to form a skirt edge 36. The invention also comprises a mounting tool of the suspension cylinder, the mounting tool of the suspension cylinder comprises a hollow outer ejector rod 37 and an inner ejector rod 38 which is arranged in the outer ejector rod in a penetrating way, the upper end of the outer ejector rod is provided with a top sleeve 39 for pushing the top wall of the suspension cylinder, and the upper end of the inner ejector rod is provided with a supporting plate 40 which is positioned in the top sleeve and used for pushing the sealing bowl. A transverse pull rope 41 is arranged in the hanging cylinder, and the upper end of the pull rope is connected to the transverse pull rope and is connected with the hanging cylinder. The vertical alignment rod is provided with a guy cable through hole 19 which penetrates through the vertical alignment rod along the length direction of the vertical alignment rod, and the lower end of the vertical alignment rod is provided with a threaded sleeve 20. The thread bush is equipped with the horizontal gap with cable via hole intercommunication between the lower terminal surface of pole with the vertical ratio, and the lower extreme of cable passes, passes horizontal gap behind the cable via hole again, and threaded connection has the cable fixation nut 21 of pressing from both sides the cable tight on pole lower terminal surface is compared to the vertical ratio in the thread bush. The tunnel top wall settlement alarm further comprises a power supply, an alarm, a conducting ring 22 and a conducting block 23, wherein the power supply, the alarm and the conducting ring are connected together in series, the conducting ring 22 is connected to the mounting seat, the lower end of the conducting ring protrudes out of the mounting seat, the conducting block is connected to the vertical comparison rod, the conducting ring is sleeved on the vertical comparison rod, and the spacing distance between the conducting ring and the conducting block is the maximum allowable value of the settlement of the tunnel top wall. The vertical alignment rod is provided with a vertically extending magnet strip 24, the conductive block is made of ferromagnet, and the conductive block is adsorbed on the magnet strip and is fixed on the vertical alignment rod. The mounting seat is tubular structure, and the pointer is connected on the lower terminal surface of mounting seat, be equipped with a plurality of elastic support feet 25 along the mounting seat circumference distribution on the outer peripheral face of mounting seat. The elastic supporting legs are obliquely arranged in a state that the lower ends of the elastic supporting legs are far away from the mounting seat, the upper ends of the elastic supporting legs are connected with the mounting seat, the inhaul cable penetrates through the mounting seat, and the vertical comparison rod can be inserted into the mounting seat.
The method for monitoring the settlement of the top wall of the tunnel by the top-adhesive tunnel top wall settlement monitoring mechanism comprises the following steps: firstly, drilling a vertical mounting hole 27 on a tunnel top wall 26, wherein the depth of the vertical mounting hole is more than 1 m; secondly, installing the suspension cylinder into the upper end of the vertical installation hole: and cement slurry 42 is filled in the storage bowl, the suspension cylinder is lifted to the upper end of the vertical mounting hole until the storage bowl is abutted against the top wall of the vertical mounting hole, the upper top sealing bowl enables the cement slurry in the storage bowl to overflow, and the storage bowl is bonded with the vertical mounting hole after the cement slurry overflows. The method for lifting the hanging cylinder comprises the following steps: the top sleeve is supported on the top wall of the hanging sleeve, the outer ejector rod is held and lifted to the top wall of the storage bowl and the top wall of the vertical mounting hole to be abutted, then the position of the outer ejector rod is kept unchanged, the inner ejector rod is lifted, the upper end supporting plate supports the sealing bowl, and cement overflows after the sealing bowl is supported. And thirdly, fixing the mounting seat in the lower port of the vertical mounting hole, aligning the scale mark 0 of the graduated scale on the vertical comparison rod with the indicating needle, and reading the scale vertical of the graduated scale aligned with the indicating needle to acquire the settlement of the top wall of the tunnel in the monitoring process. And thirdly, enabling the distance between the conductive block and the conductive ring to be equal to the maximum allowable value of the settlement of the top wall of the tunnel, when the top wall of the tunnel sinks, synchronously descending the indicating needle, the mounting seat and the conductive ring together, and descending the conductive ring to be attached to the conductive block to form a closed loop, wherein the alarm can give an alarm, so that an operator can timely know that the settlement of the top wall of the tunnel reaches the maximum allowable value. The method for fixing the mounting seat in the vertical mounting hole comprises the following steps: the peripheral surface of the lower end of the vertical mounting hole is provided with a plurality of supporting pits 29 with planar lower end surfaces, the side surfaces of the supporting pits along the horizontal direction and the peripheral surface of the vertical mounting hole are in inclined surface transition, and the elastic supporting legs are supported on the lower end surfaces of the supporting pits to connect the mounting seat in the vertical mounting hole. The fourth step: taking out the mounting seat and the hanging cylinder: after the monitoring is accomplished, make the side extrusion elastic supporting legs of support pit along the horizontal direction and make the elastic supporting legs fold and deviate from the support pit through rotating the mount pad, thereby draw down the mount pad and take out the mount pad, thereby the cable that comes off makes storage bowl and flexible layer disconnection, hangs a section of thick bamboo and stores the bowl and takes off, and the flexible layer is detained in vertical mounting hole.

Claims (10)

1. The utility model provides a top glues formula tunnel roof settlement monitoring mechanism, a serial communication port, including hang a section of thick bamboo, upper end with hang a cable that a section of thick bamboo links together, connect the perpendicular of establishing the scale of putting of cable lower extreme compare the pole with the cover establish in the perpendicular compare on the pole with the annular pointer of scale complex, the pointer is equipped with the mount pad, store the bowl on the roof of a section of thick bamboo of hanging, it is equipped with storage bowl portion through-hole to store the bowl portion, it is convenient lived by the sealed bowl that can upwards buckle to store bowl portion through-hole, the roof of a section of thick bamboo of hanging be equipped with the section of thick bamboo through-hole that hangs that sealed bowl aligns.
2. The top wall settlement monitoring mechanism of claim 1, wherein an upper end of the storage bowl extends beyond the suspension cylinder in a radial direction of the storage cylinder.
3. The top wall settlement monitoring mechanism of claim 1 or 2, wherein the storage bowl is internally paved with a flexible layer, the part of the flexible layer located in the through hole of the storage bowl part forms the sealing bowl, the flexible layer is only fixed with the bowl opening of the storage bowl, and the periphery of the flexible layer crosses the bowl opening of the storage bowl to form a skirt.
4. The top wall settlement monitoring mechanism for the top-bonded tunnel according to claim 1 or 2, further comprising a mounting tool for the suspension cylinder, wherein the mounting tool for the suspension cylinder comprises a hollow outer top rod and an inner top rod penetrating through the outer top rod, a top sleeve for supporting the top wall of the suspension cylinder is arranged at the upper end of the outer top rod, and a supporting plate for supporting the sealing bowl is arranged in the top sleeve and is arranged at the upper end of the inner top rod.
5. The top wall settlement monitoring mechanism for the top-sticky tunnel according to claim 1, 2, 3 or 4, wherein the vertical alignment rod is provided with a cable through hole penetrating through the vertical alignment rod along the length direction of the vertical alignment rod, the lower end of the vertical alignment rod is provided with a threaded sleeve, a horizontal gap communicated with the cable through hole is formed between the threaded sleeve and the lower end surface of the vertical alignment rod, the lower end of the cable passes through the cable through hole and then passes through the horizontal gap, and the threaded sleeve is internally and threadedly connected with a cable fixing nut for clamping the cable on the lower end surface of the vertical alignment rod.
6. The top wall settlement monitoring mechanism of claim 1, 2, 3 or 4, further comprising a power supply, an alarm, a conductive ring connected to the mounting seat and having a lower end protruding from the mounting seat, and a conductive block connected to the vertical alignment rod, wherein the conductive ring is sleeved on the vertical alignment rod, and the distance between the conductive ring and the conductive block is the maximum allowable value of the settlement of the top wall of the tunnel.
7. The top wall settlement monitoring mechanism of claim 6, wherein the vertical alignment rod is provided with a vertically extending magnet strip, the conductive block is made of a ferromagnetic material, and the conductive block is adsorbed on the magnet strip and fixed on the vertical alignment rod.
8. The top wall settlement monitoring mechanism for the top-bonded tunnel according to claim 1, 2, 3 or 4, wherein the mounting seat is of a tubular structure, the pointer is connected to the lower end surface of the mounting seat, a plurality of elastic supporting legs distributed along the circumferential direction of the mounting seat are arranged on the outer circumferential surface of the mounting seat, the elastic supporting legs are obliquely arranged in a state that the lower ends of the elastic supporting legs are far away from the mounting seat, the upper ends of the elastic supporting legs are connected with the mounting seat, the guy cable penetrates through the mounting seat, and the vertical alignment rod can be inserted into the mounting seat.
9. The tunnel top wall settlement monitoring method suitable for the top-adhesive tunnel top wall settlement monitoring mechanism of claim 1 is characterized in that in the first step, vertical mounting holes are drilled in the top wall of the tunnel, and the depth of each vertical mounting hole is more than 1 meter; secondly, installing the suspension cylinder into the upper end of the vertical installation hole: filling cement slurry into the storage bowl, lifting the suspension cylinder to the upper end of the vertical mounting hole until the storage bowl is abutted against the top wall of the vertical mounting hole, jacking the sealing bowl to enable the cement slurry in the storage bowl to overflow, and bonding the storage bowl and the vertical mounting hole together after the cement slurry overflows; and thirdly, fixing the mounting seat in the lower port of the vertical mounting hole, aligning the scale mark 0 of the graduated scale on the vertical comparison rod with the indicating needle, and reading the scale vertical of the graduated scale aligned with the indicating needle to acquire the settlement of the top wall of the tunnel in the monitoring process.
10. The method for monitoring settlement of the top wall of the tunnel according to claim 9, wherein in the third step, the distance between the conductive block and the conductive ring is made equal to the maximum allowable value of the settlement amount of the top wall of the tunnel, when the top wall of the tunnel sinks, the pointer, the mounting seat and the conductive ring synchronously descend together, and the pointer, the mounting seat and the conductive ring descend until the conductive ring and the conductive block are attached together to form a closed loop, and then the alarm gives an alarm, so that the operator can timely know that the settlement amount of the top wall of the tunnel reaches the maximum allowable amount.
CN202110947346.2A 2021-08-18 2021-08-18 Top-adhesive tunnel top wall settlement monitoring mechanism and tunnel top wall settlement monitoring method Withdrawn CN113532382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110947346.2A CN113532382A (en) 2021-08-18 2021-08-18 Top-adhesive tunnel top wall settlement monitoring mechanism and tunnel top wall settlement monitoring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110947346.2A CN113532382A (en) 2021-08-18 2021-08-18 Top-adhesive tunnel top wall settlement monitoring mechanism and tunnel top wall settlement monitoring method

Publications (1)

Publication Number Publication Date
CN113532382A true CN113532382A (en) 2021-10-22

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CN202110947346.2A Withdrawn CN113532382A (en) 2021-08-18 2021-08-18 Top-adhesive tunnel top wall settlement monitoring mechanism and tunnel top wall settlement monitoring method

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Application publication date: 20211022

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