CN220772130U - Shaft slipform construction die body deviation detection device - Google Patents

Abstract

The utility model relates to the field of tunnel shaft construction, in particular to a die body deviation detection device. The sliding mode die body comprises a sliding mode die body, and is characterized by further comprising a support arranged at a shaft wellhead and a laser positioning assembly for detecting levelness of the sliding mode die body, wherein the laser positioning assembly comprises a transmitter for transmitting laser beams and a receiver matched with the transmitter. In the construction process, the device can continuously detect the levelness of the sliding mode die body, further detect the horizontal posture of the sliding mode die body in the moving process, help constructors to master the working state of the sliding mode die body at any time, thereby protecting the sliding mode die body and ensuring the life safety of the constructors.

Description

Shaft slipform construction die body deviation detection device

Technical Field

The utility model relates to the field of tunnel shaft construction, in particular to a die body deviation detection device.

Background

Along with the rapid promotion of domestic tunnel construction and the gradual maturity of construction technology, the extra-long tunnel is constructed in a large number, in the construction of extra-long tunnel, in order to assist tunnel ventilation and smoke discharge, usually will choose to set up ventilation shaft. In order to reduce wind resistance and improve ventilation and smoke discharging efficiency, the shaft is poured with a secondary lining after the primary support construction is completed. The primary support is a structural layer which is formed by combining and fixing supports such as Shi Zuogang, concrete and the like on the periphery of a cavity and with a rock wall after a tunnel shaft is excavated in order to control the proper release and deformation of surrounding rock stress, increase the structural safety and facilitate construction; the secondary lining refers to an inner lining built by using materials such as concrete under the condition that the tunnel is subjected to primary support, so as to achieve the purposes of reinforcing the support, optimizing a route waterproof and drainage system, beautifying the appearance, conveniently setting facilities such as communication, illumination, detection and the like.

In secondary lining construction, a hydraulic slip form construction method is mostly adopted due to the limitation of a vertical shaft space and a construction platform. The core component in the hydraulic slip-form construction is a slip-form die body, the slip-form die body is large in volume and is a circular platform body formed by splicing steel girder structures, so that when the circular platform body moves up and down in a ventilation vertical shaft, a plurality of hydraulic jacks are required to work synchronously to drive.

However, the force applied by each hydraulic jack is difficult to be kept consistent during the moving process, so that the whole sliding die body is easy to deviate due to uneven stress. If the offset cannot be found and corrected in time, the hydraulic jack can be damaged, even the sliding mode die body can be tilted, the construction progress is affected, and the safety of personnel is threatened.

Disclosure of Invention

The utility model aims to provide a device for detecting deviation of a vertical shaft sliding mode construction die body. In the construction process, the device can continuously detect the levelness of the sliding mode die body, further detect the horizontal posture of the sliding mode die body in the moving process, help constructors to master the working state of the sliding mode die body at any time, thereby protecting the sliding mode die body and ensuring the life safety of the constructors.

In order to achieve the above object, the present utility model adopts the following technical method: the utility model provides a shaft slipform construction die body skew detection device, contains the slipform die body, its characterized in that still contains the support of installing at the shaft well head and is used for detecting the laser position finding subassembly of slipform die body levelness, the laser position finding subassembly contain be used for sending the transmitter of laser beam and with the receiver of transmitter cooperation use.

Thus, the offset degree detection of the sliding mode die body can be realized by the laser positioning assembly. The support is horizontally arranged at the wellhead of the vertical shaft, the transmitter is vertically arranged on the support, the transmitter can vertically downwards emit target laser beams, and when the sliding die body vertically moves up and down in the vertical shaft, the receiver arranged on the support and the sliding die body synchronously move. In this process, the horizontal position of the receiver remains unchanged, and the receiver is disposed vertically below the transmitter, so that the target laser beam will always illuminate the receiving center of the receiver when the slip-form mold body is in a horizontal posture.

When the sliding mode body deflects or deviates, the space position of the transmitter on the bracket is unchanged all the time, so the laser transmitting position and angle are unchanged, but the horizontal position and the included angle with the horizontal plane of the receiver arranged on the sliding mode body are possibly changed under the driving of the sliding mode body. The laser point position originally irradiated at the receiving center of the receiver is changed, the integral offset of the sliding mode die body can be judged according to the direction and the degree of the change of the point position, and the whole sliding mode die body can be timely adjusted accordingly, so that potential danger is prevented.

In addition, the receiver can be mounted on a bracket, and the transmitter can be mounted on a slip-form body, with the transmitter being disposed vertically below the receiver. When the sliding mode die body is in a horizontal posture, the target laser beam always irradiates the receiving center of the receiver. When the sliding mode die body deflects or deflects, the spatial position of a receiver positioned on the support is unchanged all the time, but under the drive of the sliding mode die body, the horizontal position and the included angle with the horizontal plane of a transmitter arranged on the sliding mode die body can be changed, so that the emission angle and the direction of a target laser beam are changed, the laser point position which is originally irradiated at the receiving center of the receiver can be changed, and the integral offset of the sliding mode die body can be judged according to the changing direction and degree of the point position.

In the present utility model, the number of the laser positioning modules is two or more, and each of the laser positioning modules is mounted on the same plane.

The laser positioning components of more than two groups are arranged, the laser positioning components of each group are arranged on the same plane, namely, the transmitters are arranged on the same plane, and the receivers are also arranged on the same plane, so that the detection device can have the capability of measuring the offset of a plurality of points at the same time, and further has the capability of checking each other among the laser positioning components.

The variation of the laser point position of the receiving center of the single receiver can occur in two cases, and the common case is that the whole sliding mode die body is offset, at the moment, any two groups of laser positioning assemblies can detect the offset, and the posture of the whole sliding mode die body needs to be adjusted; in another case, because the sliding mold body itself has elastic deformation, a part of the area can sometimes generate vertical offset with smaller amplitude, at this time, only the laser positioning assembly close to the area can detect the offset, and the detection results of other laser positioning assemblies are normal, so that the whole sliding mold body is not required to be adjusted. The verification capability is helpful for scientifically and accurately judging the state of the sliding mode die body, and improper adjustment is avoided.

Preferably, the bracket comprises a bracket body and a mounting plate detachably connected with the bracket body, and a fixing piece for fixing the emitter is arranged on the mounting plate.

The frame body is erected at the wellhead of the vertical shaft and can be manufactured by adopting a firm metal structure, so as to provide a fixed platform for the transmitter; the mounting panel is connected with the support body can be dismantled, is equipped with the mounting on it, and the transmitter passes through mounting and mounting panel fixed connection. The mounting plate can be made of light and firm materials such as engineering plastics and the like and is fixed on the frame body by connecting bolts or bolts. Through dismantling mounting panel and support body, make this device possess the ability of once only removing all transmitters under the circumstances of not moving heavier support body, can in time shift the transmitter when outdoor bad weather arrives, avoid suffering loss of property.

Preferably, the frame body comprises a main frame, a sub-frame slidingly connected with the main frame, and a fixing pin for fixing the positions of the main frame and the sub-frame.

Because the earth surface environment at the construction wellhead is various and may be sand and stone or soft clay, and the wellhead is sometimes in a non-standard circular shape, the erection position of the frame body needs to be adjusted to ensure that the transmitter is positioned at the center of the wellhead. Because the main frame position needs to be kept at the center of the wellhead and inconvenient to move, the fixed contact point between the frame body and the ground can be changed through the auxiliary frame which is slidably arranged on the main frame, so that the applicability of the frame body to different wellhead terrains is improved.

Preferably, the frame body further comprises an adjusting foot screw-coupled to the sub-frame to adjust the extension height, and the adjusting foot comprises a spike portion for penetrating the ground.

Because the working environment of the device is usually the outdoor with poor natural conditions, the frame body is necessary to be erected at a position with a certain height from the ground so as to avoid the phenomenon that the frame body is washed by water flow or impacted by stone rolling. The adjusting feet are in threaded connection with the auxiliary frames, the contact positions with the ground can be changed along with the movement of the auxiliary frames, the extending heights of the adjusting feet are adjusted through the rotation operation of the threaded portions, and then the overall ground-leaving height of the frame body is adjusted. The bottom of the support body is provided with a metal support rod with a threaded spike structure, and the stability of the support body can be improved by inserting the threaded spike part into the ground.

Preferably, the receiver comprises a supporting seat, and a positioning scale for measuring the offset of the laser point position is arranged on the supporting seat.

When the laser point irradiated on the center of the receiver target changes, a positioning scale is specially set for facilitating constructors to determine the offset direction and the offset amount. The positioning scale can be manufactured by adopting a reflecting plate with diffuse reflection capability in the prior art, and when laser irradiates on the plate, diffuse reflection can help constructors to efficiently identify laser points by naked eyes; and mark lines are uniformly marked on the plate to determine the offset.

Preferably, the upper surface of the positioning scale is raised upwards, and the supporting seat is provided with a water diversion groove for draining water.

The vertical shaft in construction often encounters rainfall, and normal rainfall does not influence the normal work of the device. When rainwater drops on the positioning scale through the wellhead, formed ponding will form adverse effect on laser reflection, and specular reflection and refraction phenomena formed by the ponding can interfere with manual judgment, so that the upper surface of the positioning scale is arranged into an upward protruding shape, the ponding is facilitated to naturally slide along a protruding surface, and a water diversion groove is arranged on the supporting seat, so that the sliding rainwater can be efficiently drained.

Preferably, the upper surface of the mounting plate is also provided with a bubble level.

The accurate detection effect is intended to be achieved, provided that the transmitter is fixedly mounted perpendicular to the horizontal plane. All the transmitters are vertically arranged on the mounting plate, and the mounting plate is connected with the frame body in parallel, so that the frame body needs to be ensured to be erected at the wellhead of the vertical shaft to meet the horizontal state, but in reality, the ground of the wellhead is often uneven, and leveling operation is needed. When adjusting and installing each regulation foot on the support body, can combine the level indication information of bubble type spirit level that sets up on the mounting panel, the support body is leveled to the high-efficient accurate to guarantee the vertical gesture of transmitter.

In summary, the utility model has the following beneficial effects:

1. through setting up the laser position finding subassembly more than two sets of, can make the cooperation work realize mutual check between the laser position finding subassembly of difference, clear resolution slipform die body whether take place whole skew or because self elastic deformation leads to local deformation, can help constructor accurate make the adjustment decision.

2. The frame body comprises a main frame and an auxiliary frame, the relative position of the auxiliary frame relative to the main frame can be flexibly adjusted, and the auxiliary frame is also provided with a height-adjustable adjusting foot, so that the frame body can be horizontally and stably erected at a shaft wellhead through the adjusting foot.

3. The upper surface of the positioning scale protrudes upwards, and the supporting seat is provided with a water diversion groove for draining water. Therefore, the positioning scale has self-drainage capability, and can ensure the functional stability of the device when encountering normal precipitation.

4. The bubble type level arranged on the upper surface of the mounting plate can help the installer to efficiently and accurately level the frame body, so that each emitter is fixedly arranged perpendicular to the horizontal plane, the vertical emission angle of emitted laser is ensured, and the use accuracy of the whole device is further ensured.

Drawings

FIG. 1 is a schematic diagram of a die body deviation detecting device;

FIG. 2 is a top view of a bracket in the die body deviation detecting device;

FIG. 3 is a bottom view of a bracket of the present die body misalignment detection apparatus;

FIG. 4 is a top view of a receiver in the present phantom offset detection apparatus;

fig. 5 is a side view of a receiver in the present phantom offset detection apparatus.

In the figure: 1. the device comprises a sliding mode die body, 2, a support, 21, a frame body, 211, a main frame, 212, an auxiliary frame, 213, a fixing pin, 214, an adjusting foot, 22, a mounting plate, 221, a fixing piece, 23, a bubble level, 3, a laser positioning component, 31, a transmitter, 32, a receiver, 321, a supporting seat, 322, a positioning scale, 323 and a water diversion groove.

The specific embodiment is as follows:

the present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

In the present embodiment, a die body deviation detecting device is exemplified in which 4 sets of laser positioning modules 3 are mounted. As shown in fig. 3, the bracket 2 has 4 emitters 31 mounted on the mounting plate 22, and each emitter 31 is mounted near the outer edge of the mounting plate 22 and symmetrically distributed two by two.

The die body deviation detecting device shown in fig. 1 is vertically arranged in a shaft well body during construction operation, and a sliding die body 1 is erected at a working height by a hydraulic jack mounted thereon. A support 2 is mounted at the wellhead and the support 2 is set off the ground by an adjustment foot 214.

As shown in fig. 2 and 3, a circular mounting plate 22 is fixedly mounted on the frame 21, and the transmitter 31 is fixed to the lower surface of the mounting plate 22 by a fixing member 221. The fixing member 221 may be a metal connecting pin, which passes through the mounting plate 22 from top to bottom to be connected to the emitter 31, and vertically fixes the emitter 31 on the lower surface of the mounting plate 22; the emitter 31 may be a low power laser emitter as in the prior art, and may emit the laser light periodically or continuously. Meanwhile, the upper surface of the mounting plate 22 is fixedly provided with a bubble level 23; the main frame 211 in the frame body 21 can be an integrally cast metal frame for bearing, the frame body part extending outwards is connected with the auxiliary frame 212 through fixing pins 213, and a plurality of inserting positions of the fixing pins 213 are used for adjusting the distance of the auxiliary frame 212 extending out of the main frame 211 relatively; the sub-frame 212 is provided with an adjusting foot 214, and the adjusting foot 214 is in threaded connection with the sub-frame 212, so that the vertical extension length of the adjusting foot 214 can be adjusted, and the height of the adjusting foot 214 for supporting the support 2 from the ground can be changed.

The receivers 32 are installed on the upper surface of the sliding mold body 1, in this embodiment, 4 receivers are installed symmetrically in pairs, as shown in fig. 4 and 5, each receiver 32 is composed of a supporting seat 321 and a positioning scale 322, wherein the supporting seat 321 is fixed on the upper surface of the sliding mold body 1 and is used for providing support; the positioning scale 322 is arranged above the supporting seat 321, the positioning scale 322 can be made of a reflecting plate supporting diffuse reflection, positioning scale marks are drawn on the positioning scale marks, and the edge positions of the positioning scale marks are uniformly and upwards protruded from the center position of the positioning scale marks, so that rainwater can naturally slide down; a plurality of water diversion grooves 323 are also arranged on the supporting seat 321 and are used for rapidly guiding the falling rainwater away.

When the die body deviation detecting device works normally, the transmitter 31 transmits a beam of irradiation laser light for a short period of time every time, so that constructors can clearly confirm deviation information. When the phantom pose is normal and not offset, the laser shot point will be exactly centered on the positioning scale 322 on the receiver 32; if the sliding mode die body 1 is shifted, laser irradiation points on two symmetrically arranged receivers 32 in the shifting direction or closest to the shifting direction are shifted, and constructors can synthesize the magnitude and the direction of the two shifting amounts to judge the actual gesture of the current sliding mode die body 1 and make adjustment in time; if the sliding mold body 1 is deformed elastically due to its own structure, a part of the edge structure is slightly collapsed or tilted, and at this time, the laser irradiation point on the receiver 32 closest to the part will shift, but the laser irradiation point on the receiver 32 on the other side symmetrically distributed with the part will still be at the center position, and comparing the two will help the constructor to determine the actual posture of the current sliding mold body 1, thereby judging whether adjustment is needed, and avoiding improper adjustment caused by erroneous judgment to break the overall balance posture of the sliding mold body 1.

In practical application, by increasing the number of the laser positioning assemblies 3 and reasonably distributing the installation positions of the laser positioning assemblies, the detection accuracy of the device can be enhanced, and in the embodiment, 4 groups of laser positioning assemblies 3 are selected in consideration of the practical use cost. In addition, the relative positions of the transmitter 31 and the receiver 32 may be interchanged, and when it is inconvenient to supply power to the wellhead-mounted transmitter 31, the transmitter 31 may be mounted on the slip-form body 1 to obtain stable power supply; the receiver 32 is mounted on the bracket 2, so that the purpose of detecting the sliding mode offset can be achieved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (8)

1. The utility model provides a shaft slipform construction die body skew detection device, contains slipform die body (1), its characterized in that still contains support (2) and be used for detecting that install at the shaft well head slipform die body (1) skew degree's laser position finding subassembly (3), laser position finding subassembly (3) contain be used for sending out transmitter (31) of laser beam and with receiver (32) that transmitter (31) cooperation was used.

2. The device for detecting the deviation of the vertical shaft sliding mode construction die body according to claim 1, wherein the number of the laser positioning assemblies (3) is more than two, and each group of the laser positioning assemblies (3) are arranged on the same plane.

3. The vertical shaft sliding mode construction die body deviation detecting device according to claim 1, wherein the support (2) comprises a support body (21) and a mounting plate (22) detachably connected with the support body (21), and a fixing piece (221) for fixing the emitter (31) is arranged on the mounting plate (22).

4. A shaft slipform construction phantom deviation detecting device according to claim 3, characterized in that the frame body (21) comprises a main frame (211), a sub-frame (212) slidingly connected with the main frame (211) and a fixing pin (213) for locking the positions of the main frame (211) and the sub-frame (212).

5. The device for detecting the deviation of the mold body in the sliding mode of the vertical shaft construction according to claim 4, wherein the frame body (21) further comprises an adjusting leg (214) which is in threaded connection with the sub-frame (212) so as to adjust the extension length, and the adjusting leg (214) comprises a spike part for penetrating the ground.

6. The vertical shaft sliding formwork construction die body deviation detecting device according to claim 1, wherein the receiver (32) comprises a supporting seat (321) and a positioning scale (322) which is installed on the supporting seat (321) and is used for measuring laser point position deviation.

7. The device for detecting the deviation of the mold body in the sliding mode construction of the vertical shaft according to claim 6, wherein the surface of the positioning scale (322) is upwards protruded, and a water diversion groove (323) for draining water is arranged on the supporting seat (321).

8. A shaft slipform construction die body deviation detecting device according to claim 3, characterized in that the upper surface of the mounting plate (22) is also provided with a bubble level (23).