A tunnel local assembly type reinforcing structure installation system and a monitoring and construction method

Abstract

The application discloses a tunnel local assembly type reinforcing structure mounting system and a monitoring and construction method, and relates to the technical field of tunnel construction. The mounting system comprises a hoisting module, a rotating and moving module and a mounting and temporary supporting module. The hoisting module comprises a supporting structure and an electric hoist, and the electric hoist is arranged on the supporting structure. The rotating and moving module comprises a bearing structure and a rotating and moving structure. The rotating and moving structure comprises two rotating arms which are hinged and connected through telescopic jacks. One of the rotating arms is further hinged to the bearing structure and connected through a telescopic jack. The other rotating arm can place a pipe piece thereon. The mounting and temporary supporting module comprises a bearing gantry and a supporting truss. The top of the bearing gantry is provided with a working platform, and both sides of the working platform are provided with the supporting trusses. The bearing gantry is provided with telescopic jacks connected with the supporting trusses. The supporting trusses can place pipe pieces thereon. The mounting system can be quickly assembled and formed, and is used for assembly type structure construction, thereby improving construction efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel construction, in particular to a tunnel local prefabricated reinforcing structure installation system and a monitoring and construction method. BACKGROUND

[0002] With the continuous advancement of transportation infrastructure construction, the number of highway tunnels in China is rapidly increasing. During long-term use, various structural damages and disease phenomena gradually appear due to the increase of service life and the influence of natural environment. In the long-term service process, sudden disasters such as earthquakes, heavy rains and explosions may also occur. If not repaired and reinforced in time, it will reduce the service life of the tunnel and endanger traffic safety and operational efficiency.

[0003] Prefabricated reinforcing structures have many advantages, such as high-precision factory production, mechanized operation, on-site assembly, maximum reduction of human error, improved structural quality and construction safety, etc. In addition, prefabricated structures can also realize three-dimensional crossing operation, which is faster and easier to control the construction period compared with traditional construction methods. Therefore, for the treatment of disease in operating tunnels, prefabricated structure reinforcement has more outstanding advantages in quality and timeliness.

[0004] However, prefabricated structures have the characteristics of large weight and large size. The traditional construction method mainly relies on manual work and supplemented by machinery, which not only has low efficiency, but also cannot guarantee the reinforcing quality and construction safety. The demand for special equipment is much higher than that for general structure construction. At present, there is an urgent need for equipment specially used for prefabricated structure installation and construction to meet the urgent needs of tunnel reinforcement and maintenance. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a tunnel local prefabricated reinforcing structure installation system and a monitoring and construction method, which can be used for tunnel reinforcement and maintenance.

[0006] In order to achieve the above purpose, the present application is realized by the following technical scheme: a tunnel local prefabricated reinforcing structure installation system, comprising hoisting modules, rotating and moving modules and installation and temporary support modules arranged in sequence along the tunnel direction;

[0007] The hoisting module comprises a support structure and an electric hoist, and the electric hoist is arranged on the support structure;

[0008] The rotating and moving module comprises a bearing structure and a rotating and moving structure, and the rotating and moving structure comprises rotating arms, two rotating arms are hinged and connected through telescopic jacks, one of the rotating arms is also hinged with the bearing structure and connected through a telescopic jack, and the other rotating arm can place a segment;

[0009] The installation and temporary support module comprises a bearing gantry and a support truss, the bearing gantry is provided with a work platform at the top and support trusses at both sides, the bearing gantry is provided with telescopic jacks connected with the support trusses, and the support truss can place the pipe piece.

[0010] The pipe piece is lifted by the electric hoist of the lifting module to the rotating arm of the rotating and moving module, the rotating arm lifts the pipe piece upward to the side of the support truss under the action of the telescopic jacks, the pipe piece is pushed to the support truss, and then the pipe piece is lifted to the inner wall of the tunnel under the action of the telescopic jacks, so that the installation construction can be carried out.

[0011] Further, the support structure comprises horizontal beams, inclined beams and vertical beams, both ends of the horizontal beam are connected with the vertical beams through the inclined beams, both ends of the inclined beam are rotationally connected with the horizontal beam and the vertical beam, and the electric hoist is arranged on the horizontal beam.

[0012] The telescopic jacks connected with the inclined beams are arranged on the vertical beams, and the telescopic jacks connected with the horizontal beams are arranged on the inclined beams.

[0013] The horizontal beams, the inclined beams and the vertical beams can relatively rotate, so as to be folded to facilitate transportation and storage. When in use, the parts relatively rotate under the action of the telescopic jacks, so as to form the support structure, so as to lift the pipe piece.

[0014] Further, the horizontal beam is provided with a cantilever, and the electric hoist is movably arranged on the cantilever and can move along the axial direction of the cantilever.

[0015] The electric hoist moves on the cantilever, lifts the pipe piece and then moves to the rotating arm.

[0016] Further, the bearing structure comprises horizontal beams two and vertical beams two, the horizontal beam two is a telescopic structure, both ends of the horizontal beam two are hingedly connected with the vertical beams two, and the horizontal beam two is connected through the telescopic jacks, and the rotating arm is hingedly connected to the horizontal beam two.

[0017] The horizontal beam two and the vertical beam two can relatively rotate when not in use, so as to facilitate transportation and storage. When in use, the horizontal beam two and the vertical beam two relatively rotate under the action of the telescopic jacks, so as to form the bearing structure.

[0018] Further, the bottom of the bearing gantry is provided with a lifting jack.

[0019] The lifting jack is used for supporting the stability of the bearing gantry and can also be used for lifting the pipe piece as a whole.

[0020] Further, the installation and temporary support module further comprises a chiseling mechanism, the chiseling mechanism comprises an arc-shaped rail, two moving arms and a mounting seat, the arc-shaped rail is fixedly arranged on the carrying gantry, the two moving arms are hinged, one of the moving arms is movably arranged on the arc-shaped rail, and the mounting seat is arranged on the other moving arm, and a plurality of chiseling heads are arranged on the mounting seat.

[0021] The moving arms move on the arc-shaped rail, and the two moving arms rotate relative to each other, so that the chiseling heads can chisel the surface of the reinforced section, so as to install the pipe segment.

[0022] Further, displacement monitoring targets are arranged on the installation and temporary support module, and the targets can be recognized by a DSE video monitoring system to monitor the structure displacement.

[0023] By monitoring the structure displacement, displacement compensation can be performed in time to ensure construction safety.

[0024] Further, a moving mechanism is further included, the moving mechanism comprises an electric drive wheel, and the hoisting module, the rotating moving module and the bottom of the installation and temporary support module are each provided with an electric drive wheel.

[0025] The tunnel local assembly type reinforcing structure installation system has the advantages of efficient and safe construction process and controllable quality.

[0026] A displacement monitoring method of a tunnel local assembly type reinforcing structure installation system, using the tunnel local assembly type reinforcing structure installation system, comprises the following steps:

[0027] Displacement calibration, a calibration plate is placed at a monitoring section, and the structure displacement corresponding to a unit pixel point is calculated by recognizing the distance of a known point on the calibration plate and the pixel point number thereof;

[0028] Image acquisition, the camera continuously captures images of the calibration points during the pipe segment installation construction process;

[0029] Region division, the part containing the calibration points in the image is framed as an object for subsequent displacement monitoring analysis;

[0030] Feature point recognition, the displacement monitoring points in the framed region are selected, all monitoring images are automatically matched with the monitoring points, and the coordinate positions of the calibration points in the pixel array are analyzed;

[0031] Displacement data analysis, taking the first image as a reference, the difference between the coordinate positions in the subsequent images and the reference positions is calculated to realize the measurement of the displacement.

[0032] The beneficial effect of the displacement monitoring method of the above-mentioned tunnel partial prefabricated reinforcement structure installation system is that by monitoring the structural displacement, timely compensation can be made to ensure construction safety.

[0033] A construction method for a tunnel partial prefabricated reinforcement structure installation system, employing any of the aforementioned tunnel partial prefabricated reinforcement structure installation systems, includes the following steps:

[0034] The modules are transported into the tunnel and installed, and the modules are connected longitudinally to form a whole.

[0035] Roughen the surface concrete of the tunnel reinforcement section;

[0036] The segments are transported to the site, lifted by the electric hoist of the hoisting module, placed on the rotating arm of the rotating moving module, and then lifted and moved by the rotating arm of the rotating moving module to the support truss installed on the temporary support module, where they are assembled into shape.

[0037] The supporting truss lifts the tunnel segments to the inner wall of the tunnel and installs the tunnel segments on the inner wall of the tunnel;

[0038] After the tunnel segments are installed, the modules are removed and transported away from the tunnel.

[0039] The beneficial effects of the above-mentioned construction method for a tunnel partial prefabricated reinforcement structure installation system are: it can be used for the construction of prefabricated reinforcement structures in tunnels, which not only has high construction efficiency, but also ensures reinforcement quality and construction safety. Attached Figure Description

[0040] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0041] Figure 1 This is a schematic diagram of a tunnel partial prefabricated reinforcement structure installation system according to an embodiment of the present invention;

[0042] Figure 2 for Figure 1 A schematic diagram of a hoisting module for a partially prefabricated reinforcement structure installation system for tunnels is shown.

[0043] Figure 3 for Figure 1 A top view of a rotating and moving module of a tunnel partial prefabricated reinforcement structure installation system.

[0044] Figure 4 for Figure 1 The image shows a top view of the installation and temporary support module of a partially prefabricated reinforcement structure installation system for tunnels.

[0045] Reference signs:

[0046] 10 - hoisting module, 11 - support structure, 111 - horizontal beam, 112 - inclined beam, 113 - vertical beam, 12 - electric hoist, 13 - cantilever;

[0047] 20 - rotating and moving module, 21 - bearing structure, 211 - horizontal beam two, 212 - vertical beam two, 22 - rotating arm;

[0048] 30 - installation and temporary support module, 31 - bearing gantry, 32 - support truss, 33 - chiseling mechanism, 331 - arc-shaped rail, 332 - moving arm, 333 - mounting seat. DETAILED DESCRIPTION

[0049] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0050] The present application provides a kind of tunnel local assembly type reinforcing structure installation system and monitoring, construction method, please refer to Figures 1 to 4 , installation system includes hoisting module, rotating and moving module and installation and temporary support module sequentially arranged along the direction of tunnel.

[0051] Specifically, hoisting module 10 includes support structure 11 and electric hoist 12, electric hoist 12 is arranged on support structure 11. Rotating and moving module 20 includes bearing structure 21 and rotating and moving structure, rotating and moving structure includes two rotating arms 22, two rotating arms 22 are hinged, and are connected by telescopic jack, one of rotating arms 22 is also hinged with bearing structure 21, and is connected with bearing structure 21 by telescopic jack, another rotating arm 22 can place segment. Installation and temporary support module 30 includes bearing gantry 31 and support truss 32, the top of bearing gantry 31 is equipped with operation platform, both sides are equipped with support truss 32, and telescopic jack connected with support truss 32 is arranged on bearing gantry 31, and segment can be placed on support truss 32.

[0052] Through electric hoist 12 of hoisting module 10, segment is lifted to rotating arm 22 of rotating and moving module 20, under the action of telescopic jack, rotating arm 22 rotates and rises, lifts segment to the side of support truss 32, personnel on operation platform moves segment to support truss 32 after, under the action of telescopic jack, support truss 32 moves relative to bearing gantry 31, so that segment is topped to the inner wall of tunnel, that is, the installation construction of segment can be carried out.

[0053] Specifically, the support structure 11 comprises horizontal beams 111, inclined beams 112 and vertical beams 113, both ends of the horizontal beams 111 are connected with the vertical beams 113 through the inclined beams 112, both ends of the inclined beams 112 are rotatably connected with the horizontal beams 111 and the vertical beams 113 respectively, and the electric hoist 12 is arranged on the horizontal beams 111. The vertical beams 113 are provided with telescopic jacks connected with the inclined beams 112, and the inclined beams 112 are provided with telescopic jacks connected with the horizontal beams 111. The horizontal beams 111, the inclined beams 112 and the vertical beams 113 can be relatively rotated through the telescopic jacks, so that the support structure 11 is folded to facilitate transportation and storage. When in use, the telescopic jacks can relatively rotate and unfold the parts to form the support structure 11 for hoisting the pipe section.

[0054] The horizontal beams 111 are further provided with cantilever arms 13, and the electric hoist 12 is movably arranged on the cantilever arms 13 and can move along the axial direction of the cantilever arms 13, so that the pipe section is hoisted and then moved to the rotating arms 22.

[0055] The carrying structure 21 comprises horizontal beams 211 and vertical beams 212, the horizontal beams 211 are telescopic two-section plug-in structures, both ends of which are hingedly connected with the vertical beams 212, and both ends are connected with the vertical beams 212 through telescopic jacks, and the rotating arms 22 are hingedly connected with the horizontal beams 211. The horizontal beams 211 and the vertical beams 212 can be relatively rotated under the action of the telescopic jacks when not in use, so as to be folded for transportation and storage. When in use, the horizontal beams 211 and the vertical beams 212 are relatively rotated and unfolded under the action of the telescopic jacks, so as to form the carrying structure 21.

[0056] The bottom of the carrying gantry 31 is provided with lifting jacks, which can be used to support the stability of the carrying gantry 31 and also can be used for the lifting of the whole and the pipe section. Each support truss 32 is connected with the carrying gantry 31 through two telescopic jacks, and both ends of the telescopic jacks are rotatably connected with the carrying gantry 31 and the support truss 32, so that the pipe section can be rotated through the telescopic length while being lifted upward by the two telescopic jacks.

[0057] The installation and temporary support module 30 further comprises a chiseling mechanism 33, the chiseling mechanism 33 comprises an arc-shaped rail 331, moving arms 332 and a mounting seat 333, the arc-shaped rail 331 is fixedly arranged on the carrying gantry 31 and is an electric rail. The two moving arms 332 are hingedly connected, one of the moving arms 332 is rotatably arranged on a sliding seat in the arc-shaped rail 331, the mounting seat 333 is arranged on the other moving arm 332, and a plurality of chiseling heads are arranged on the mounting seat 333. By moving the moving arms 332 on the arc-shaped rail 331, while the two rotating arms 22 are adjusted to the right position, the surface of the reinforced section can be chiseled by the chiseling heads, so as to facilitate the installation of the pipe section.

[0058] The displacement monitoring target is arranged on the installation and temporary support module 30, and the target can be recognized by the DSE video monitoring system to monitor the structure displacement during the construction process, so as to compensate the displacement in time and ensure the construction safety.

[0059] In addition, the moving mechanism is further included, and the moving mechanism includes electric driving wheels. The bottom of the lifting module 10, the rotating moving module 20 and the installation and temporary support module 30 is provided with the electric driving wheels. The front and back movement can be realized by the same movement of the four wheels. The rotation can be realized by the reverse movement of the four wheels (two groups), so that the mutual adhesion and connection between the modules can be realized.

[0060] The displacement monitoring method of the tunnel local assembly type reinforcing structure installation system includes the following steps: displacement calibration, placing a calibration plate on the monitoring section, and calculating the structure displacement corresponding to a unit pixel point by recognizing the distance of the known point position on the calibration plate and the pixel point number.

[0061] Image acquisition: during the pipe piece installation construction process, the images of the calibration points are continuously captured by the camera far away.

[0062] Region division: the part containing the calibration points in the image is framed as the object of subsequent displacement monitoring analysis, and the interference of irrelevant regions is excluded.

[0063] Feature point recognition: the displacement monitoring points in the framed region are selected, all monitoring images are automatically matched with the monitoring points, and the coordinate position of the calibration points in the pixel array is analyzed.

[0064] Displacement data analysis: taking the first image as the reference, the difference between the coordinate position in the subsequent image and the reference position is calculated, and the displacement measurement is realized.

[0065] During the monitoring process, if the light rail structure subsides (<1 cm), the lower lifting jack can be fine-tuned to realize the vertical displacement compensation. If the slight horizontal convergence (<1 cm) occurs, the horizontal jack can be fine-tuned to realize the horizontal displacement compensation. If the structure displacement exceeds the above value, the construction needs to be stopped, the bearing performance of the anchor bolt structure needs to be checked whether it meets the design requirements, and the temporary support structure needs to be arranged between the bearing portal frame and the support truss to improve the rigidity of the whole structure.

[0066] The construction method of the tunnel local assembly type reinforcing structure installation system includes the following steps:

[0067] The tunnel site is partially closed, and the lower foundation is constructed. The interface between the reinforced structure and the original structure is chiseled and treated with anchoring, and the lower foundation reinforcement cage is connected to ensure the mechanical properties of the interface. After the lower treatment, interface treatment, and anchoring are completed, the reinforcement is bound, and the upper assembly segment reinforcement connecting sleeve is reserved during the binding, or the lower connecting reinforcement is reserved. After the reinforcement binding and form closing are completed, the foundation concrete is poured, and the grade of the foundation concrete is consistent with that of the assembly structure.

[0068] After the foundation concrete reaches the required strength, the traffic in the tunnel reinforcement area is interrupted, the lifting module, rotating and moving module, and installation and temporary support module are transported to the operation site, and the lifting module is used to complete the lifting and installation of the rotating and moving module and the installation and temporary support module. The modules are installed according to the installation system described above, and are connected by longitudinal connecting plates to form a whole.

[0069] The surface concrete of the reinforced section is chiseled and treated by the chiseling mechanism of the installation and temporary support module to ensure the interface performance of the reinforced structure and the original lining structure.

[0070] The segment is transported to the site, hoisted by the lifting module, jacked up by the rotating and moving module, and installed and temporarily supported by the installation and temporary support module. After the segment is positioned, the support bolts at the bottom of the segment are twisted out, and the foundation is fixed to the side wall through angle steel, and connecting reinforcement is welded on the angle steel. The reinforcement cage at the bottom of the segment and the upper part of the foundation is bound to form a whole after subsequent grouting and backfilling.

[0071] After the construction of the reinforced section is completed, the installation system is removed in the reverse order and transported out of the tunnel, i.e. the modules are separated, the rotating and moving module is removed and transported out, the installation and temporary support module is removed and transported out, and the lifting module is folded and contracted and transported out by a flat car.

[0072] The above-mentioned tunnel local assembly reinforcement installation system and monitoring and construction method can realize the rapid transportation and assembly of the installation system, and the construction process is safe and controllable, greatly improving the construction efficiency and safety of the assembly structure.

[0073] The above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions described in the foregoing examples can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and description of the present application.

Claims

1. A tunnel partial prefabricated reinforcement structure installation system, characterized in that: It includes hoisting modules, rotating and moving modules, and installation and temporary support modules arranged sequentially along the tunnel direction; The hoisting module includes a support structure and an electric hoist, with the electric hoist mounted on the support structure. The rotating moving module includes a bearing structure and a rotating moving structure. The rotating moving structure includes a rotating arm. Two rotating arms are hinged together and connected by a telescopic jack. One of the rotating arms is also hinged to the bearing structure and connected by a telescopic jack. The other rotating arm can hold a segment. The installation and temporary support module includes a load-bearing gantry and a support truss. The load-bearing gantry is equipped with a working platform on top and support trusses on both sides. The load-bearing gantry is equipped with telescopic jacks connected to the support trusses, and the support trusses can be used to place tunnel segments. The installation and temporary support module also includes a chiseling mechanism, which includes an arc-shaped rail, a movable arm, and a mounting base. The arc-shaped rail is fixedly mounted on the load-bearing gantry, and the two movable arms are hinged together. One of the movable arms is movably mounted on the arc-shaped rail, and the mounting base is mounted on the other movable arm. Multiple chiseling heads are arrayed on the mounting base. The installation and temporary support module is equipped with a displacement monitoring target, which can be identified by the DSE video monitoring system to monitor structural displacement.

2. The tunnel partial prefabricated reinforcement structure installation system according to claim 1, characterized in that: The supporting structure includes a horizontal beam, an inclined beam, and a vertical beam. Both ends of the horizontal beam are connected to the vertical beam via the inclined beam. Both ends of the inclined beam are rotatably connected to the horizontal beam and the vertical beam, respectively. The electric hoist is mounted on the horizontal beam. The vertical beam is equipped with telescopic jacks that connect to the inclined beam, and the inclined beam is equipped with telescopic jacks that connect to the horizontal beam.

3. The tunnel partial prefabricated reinforcement structure installation system according to claim 2, characterized in that: A cantilever is provided on the horizontal beam, and the electric hoist is movably mounted on the cantilever and can move along the axial direction of the cantilever.

4. The tunnel partial prefabricated reinforcement structure installation system according to claim 1, characterized in that: The load-bearing structure includes a second horizontal beam and a second vertical beam. The second horizontal beam is a telescopic structure, and both ends are hinged to the second vertical beam and connected by telescopic jacks. The rotating arm is hinged to the second horizontal beam.

5. The tunnel partial prefabricated reinforcement structure installation system according to claim 1, characterized in that: The bottom of the load-bearing gantry is equipped with a lifting jack.

6. The tunnel partial prefabricated reinforcement structure installation system according to claim 1, characterized in that: It also includes a moving mechanism, which includes electric drive wheels. The bottom of the hoisting module, the rotating moving module, and the installation and temporary support module are all equipped with electric drive wheels.

7. A displacement monitoring method for a tunnel partial prefabricated reinforcement structure installation system, employing the tunnel partial prefabricated reinforcement structure installation system as described in claim 1, characterized in that... Includes the following steps: Displacement calibration involves placing a calibration plate on the monitoring section and calculating the structural displacement corresponding to a unit pixel by identifying the distance between known points on the calibration plate and their number of pixels. Image acquisition: During the segment installation process, the camera continuously captures images of the calibration points; Identify the region segmentation and use the bounding boxes containing the calibration points in the image as the objects for subsequent displacement monitoring and analysis; Feature point recognition: Select the displacement monitoring point in the selected area, and all monitoring images will automatically match the monitoring point to analyze the coordinate position of the calibration point in the pixel array. Displacement data analysis uses the first image as a reference to calculate the difference between the coordinate positions in subsequent images and the reference position, thereby achieving displacement measurement.

8. A construction method for a tunnel partial prefabricated reinforcement structure installation system, employing the tunnel partial prefabricated reinforcement structure installation system as described in any one of claims 1-6, characterized in that... Includes the following steps: The modules are transported into the tunnel and installed, and the modules are connected longitudinally to form a whole. Roughen the surface concrete of the tunnel reinforcement section; The segments are transported to the site, lifted by the electric hoist of the hoisting module, placed on the rotating arm of the rotating moving module, and then lifted and moved by the rotating arm of the rotating moving module to the support truss installed on the temporary support module, where they are assembled into shape. The supporting truss lifts the tunnel segments to the inner wall of the tunnel and installs the tunnel segments on the inner wall of the tunnel; After the tunnel segments are installed, the modules are removed and transported away from the tunnel.

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