A structure and treatment method for removing existing anchor cables intruding into station foundation pit

Abstract

The present invention discloses a structure and processing method for cutting off existing anchor cables that have invaded the scope of a station foundation pit. The plane movement and lifting movement of the clamp are realized by a hydraulic lifter and a mobile steel frame, so that the clamp can find the anchor cable position through mechanical movement and realize the clamping effect on the anchor cable, without the need for a crane or manual positioning and clamping; in addition, the anchor cables in the same slot section can be found and clamped one by one through movement, so that the anchor cables in the same slot section can be continuously cut, which greatly speeds up the cutting construction process and improves the cutting efficiency. There is no need for frequent disassembly and assembly, and there is no need to install multiple clamps. It is very clever and saves equipment costs. The diamond wire saw cuts the anchor cable in a way that the diamond wire saw moves at high speed around the cutting surface of the anchor cable under the drive of a hydraulic motor to grind the anchor cable to complete the cutting work. Since diamond particles are used as grinding materials, hard objects such as anchor cables can be cut.

Description

Technical Field

[0001] The invention belongs to the field of construction treatment of existing anchor cables on the ground, and specifically relates to a structure and a treatment method for cutting off existing anchor cables intruding into a station foundation pit. Background Art

[0002] In the construction of urban subway station foundation pits, there are many existing buildings nearby, and it is easy for anchor cables, anchor rods and other components left over from the construction of underground structures of buildings to invade the scope of the subway station foundation pit. When new buildings use underground continuous walls and pile foundations, existing grooving machines and punching machines are difficult for construction equipment to break or crush such steel components. In order to ensure the smooth construction of the foundation pit retaining structure, the intruding anchor cables, anchor rods and other components must be removed in advance. There is currently no mature solution or process in China for the treatment of anchor cables in the foundation pit retaining structure of buildings around subway stations. Summary of the invention

[0003] The purpose of the present invention is to provide a structure and a processing method for cutting off the existing anchor cable that has invaded the scope of the station foundation pit. The diamond wire saw cuts the anchor cable by the diamond wire saw, which is driven by a hydraulic motor to move around the cutting surface of the anchor cable at high speed to grind the anchor cable to complete the cutting work. Since diamond particles are used as grinding materials, hard objects such as anchor cables can be cut. The diamond wire saw grinds the anchor cable at high speed, and the generated powder is cooled by mud water to finally form a cutting surface. There is no vibration problem, no impact on the foundation trench wall, and no damage or disturbance to the mud wall.

[0004] In order to solve the above technical problems, the following technical solutions are adopted:

[0005] A structure for cutting off existing anchor cables intruding into a station foundation pit, comprising a cutting system and a clamp, the clamp clamping the anchor cables, and the cutting system cutting the anchor cables by means of a diamond wire saw, characterized in that: the mechanism also comprises a hydraulic lifter and a movable steel frame, the hydraulic lifter is mounted on the clamp; the movable steel frame comprises a transverse steel frame and a longitudinal steel frame, the hydraulic lifter and the clamp are mounted together on the transverse steel frame, and connected to a transverse module inside the transverse steel frame; the transverse steel frame is mounted on the longitudinal steel frame, and connected to the longitudinal module inside the longitudinal steel frame; the clamp locates and clamps the anchor cables by means of the hydraulic lifter, the transverse module and the longitudinal module.

[0006] Furthermore, the transverse steel frame includes a transverse steel rod 1, a transverse steel rod 2, a transverse connecting rod plate and a transverse module, and a transverse connecting rod plate is connected between the transverse steel rod 1 and the transverse steel rod 2; the transverse module includes a transverse motor, a transverse screw 1, a transverse screw 2, a transverse nut 1, a transverse nut 2, a transverse slider 1 and a transverse slider 2, the transverse motor is installed in the transverse connecting rod plate, the transverse motor is connected to a driving wheel, the driving wheel is connected to the transverse screw 1, the transverse screw 1 is installed in the transverse steel rod 1, and the transverse nut 1 and the transverse slider 1 are installed on the transverse screw 1; the driving wheel is transmitted to the driven wheel through a belt, the driven wheel is connected to the transverse screw 2, the transverse screw 2 is installed in the transverse steel rod 2, and the transverse nut 2 and the transverse slider 2 are installed on the transverse screw 2; the transverse slider 1 and the transverse slider 2 are both connected to the transverse slide seat through the transverse connecting rod, and are connected to the hydraulic lifter through the transverse slide seat.

[0007] The transverse steel frame is composed of transverse steel rod 1, transverse steel rod 2, transverse connecting rod plate and transverse module. Transverse steel rod 1 and transverse steel rod 2 form the steel structure of the transverse steel frame, which improves its structural strength and stability. The transverse module is a screw structure, which enables the transverse slide to move back and forth on the transverse steel frame, thereby driving the hydraulic lifter and the clamp to move back and forth, so as to achieve the purpose of lateral movement of the clamp, and can accurately find and clamp anchor cables at different positions in the same slot section, without frequent disassembly and assembly, and without the need to install multiple clamps. It is very clever, saves equipment costs, and improves construction efficiency. In addition, the transverse module is a synchronously operated double screw structure, which increases the connection points with the hydraulic lifter, improves the stability of the transverse movement, and improves the load-bearing capacity of the transverse steel frame. The transmission structure adopts a driving wheel, a driven wheel and a belt structure, and the transmission is stable.

[0008] Furthermore, both the first and second transverse steel rods are provided with transverse slide rails, and the transverse slide seat is a U-shaped structure, and the side walls of the U-shaped grooves are provided with transverse pulleys, which are installed in the transverse slide rails; two transverse slide seats are installed on the first and second transverse steel rods, and the hydraulic lifter is installed through the four transverse slide seats. The use of the transverse pulley and transverse slide rail structure can reduce the friction during the transverse movement, improve the smoothness of the transverse movement, and reduce the probability of accidents such as jamming. The structure is simple and the design is ingenious. Connecting the hydraulic lifter in the form of four transverse slide seats can improve the smoothness of the transverse movement.

[0009] Furthermore, the longitudinal movement steel frame includes a longitudinal movement steel rod 1, a longitudinal movement steel rod 2, a longitudinal movement module 1 installed on the longitudinal movement steel rod 1, and a longitudinal movement module 2 installed on the longitudinal movement steel rod 2. The longitudinal movement module 1 and the longitudinal movement module 2 move synchronously and are aligned; the longitudinal movement module 1 includes a longitudinal movement motor 1, a longitudinal movement screw 1, a longitudinal movement nut 1 and a longitudinal movement slider 1. The longitudinal movement motor 1 is connected to the longitudinal movement screw 1, and the longitudinal movement screw 1 is installed with the longitudinal movement nut 1, and the longitudinal movement nut 1 is connected to the longitudinal movement slider 1; the longitudinal movement module 2 includes a longitudinal movement motor 2, a longitudinal movement screw 2, a longitudinal movement nut 2 and a longitudinal movement slider 2. The longitudinal movement motor 2 is connected to the longitudinal movement screw 2, and the longitudinal movement screw 2 is installed with the longitudinal movement nut 2, and the longitudinal movement nut 2 is connected to the longitudinal movement slider 2; the longitudinal movement slider 1 and the longitudinal movement slider 2 are both connected to the longitudinal movement slide through a longitudinal movement connecting rod, and the longitudinal movement slide is installed on the transverse movement steel frame.

[0010] The longitudinal moving steel frame is composed of longitudinal moving steel rod 1, longitudinal moving steel rod 2, longitudinal moving module 1 and longitudinal moving module 2. The longitudinal moving steel rod 1 and longitudinal moving steel rod 2 form the steel structure of the longitudinal moving steel frame to improve its structural strength and stability; the longitudinal moving module 1 and longitudinal moving module 2 are both screw structures, so that the longitudinal moving slide can move back and forth on the longitudinal moving steel frame, thereby driving the transverse moving steel frame to move back and forth on the longitudinal moving steel frame, and finally driving the hydraulic lifter and the clamp to move back and forth, so as to achieve the purpose of longitudinal movement of the clamp, and enable the clamp to approach or move away from the groove wall, providing convenience for the clamp to accurately find and clamp the anchor cable, and at the same time simplifying the transfer of the clamp and clamping of other anchor cables in the same groove section, without frequent disassembly and assembly, and without the need to install multiple clamps, which is very clever, saving equipment costs and improving construction efficiency. In addition, the longitudinal movement module is divided into longitudinal movement module 1 and longitudinal movement module 2 which operate synchronously, and the connection points with the transverse movement steel frame are increased, thereby improving the stability of the longitudinal movement and the load-bearing capacity of the longitudinal movement steel frame.

[0011] Furthermore, the longitudinal steel rod 1 and the longitudinal steel rod 2 are provided with longitudinal slide rails, and the longitudinal slide seat is a U-shaped structure, and the side walls of the U-shaped groove are provided with longitudinal pulleys, which are installed in the longitudinal slide rails. The longitudinal pulley and longitudinal slide rail structure can reduce the friction force in the longitudinal movement, improve the smoothness of the longitudinal movement, and reduce the probability of accidents such as jamming. The structure is simple and the design is ingenious.

[0012] Furthermore, the transverse steel frame includes two groups, which are respectively installed at the front and rear ends of the longitudinal steel frame, and a partition steel rod is provided between the two groups of transverse steel frames, and the partition steel rod is installed on the longitudinal steel frame. Both groups of transverse steel frames are equipped with the same longitudinal module group 1, longitudinal module group 2 and longitudinal slide. The two groups of transverse steel frames are respectively installed with a clamp and a hydraulic lifter to achieve simultaneous cutting of the existing anchor cables on the groove walls on both sides, improve cutting efficiency, and shorten construction period; and each is equipped with a longitudinal module group 1, longitudinal module group 2 and longitudinal slide, so that the two clamps can operate independently without affecting each other.

[0013] Furthermore, the hydraulic lifter includes a hydraulic cylinder and a base plate, the piston rod of the hydraulic cylinder is connected to the clamp through the base plate, and is fixedly connected to the clamp through bolts; the base plate is provided with a guide hole, the upper end of the clamp is connected to a guide rod, the guide hole and the guide rod match each other, and there are 4 sets of guide holes and guide rods; the bottom surface of the base plate is provided with 4 mounting plates, the mounting plates and the transverse sliding seats match each other, the two correspond one to one, and are fixedly connected to each other by bolts. The hydraulic lifter is fixedly connected to the clamp through bolts, which is not only firmly connected but also removable. The guide rod and the guide hole play a guiding role in the lifting movement, improving the stability of the lifting.

[0014] A method for removing an existing anchor cable intruding into a station foundation pit, characterized by comprising the following steps:

[0015] (1) Excavate the foundation trench to expose the anchor cable section to be removed;

[0016] (2) Anchor cable positioning: After the trenching machine has cleared the soil above the anchor cable and preliminarily determined the anchor cable position, a special anchor cable geophysical exploration device is used to accurately locate the anchor cable and mark it on the guide wall;

[0017] (3) Installation of mobile steel frame: According to the position of the anchor cable, the mobile steel frame is installed at the corresponding position of the base groove, and then fixed by connecting steel pipes, cross arms, pressure plates and ground anchor bolts. After the installation of the mobile steel frame is completed, a trial run is carried out;

[0018] (4) Installation of the clamp: Install the hydraulic lifter on the clamp, and then use a crane to install the clamp on the corresponding transverse steel frame, fix the mounting plate and the transverse slide; test run the transverse module and longitudinal module respectively; hydraulic lifter;

[0019] (5) The clamp clamps the anchor cable: Move the longitudinal movement module, place one side of the guide wheel of the clamp against the groove wall, and lower the clamp through the hydraulic lifter. When lowering, try to align the center of the clamp with the position of the anchor cable according to the position and depth of the anchor cable, and accurately control and record the lowering depth of the clamp; when the guide plate encounters the anchor cable, use the transverse movement module to slightly adjust the mobile clamp left and right and slowly lower it, so that the clamp clamps the anchor cable along the guide plate. After the position is correct, drive the clamp to clamp the anchor cable, and use the hydraulic lifter to slightly lift the clamp to check whether the clamp has clamped the anchor cable;

[0020] (6) Install another set of clamps on another transverse steel frame according to the method of step (4) and step (5), and then clamp and fix the anchor cable of the side groove wall;

[0021] (7) Installation of cutting system: The cutting system includes a control part and a cutting part in the slot. The ground control part is installed on one side of the guide wall and electrically connected to the cutting part in the slot. The connected control lines are fixed on the ground concrete surface. A protective cover is installed around the rotating equipment and a guardrail is installed next to the transmission system. The cutting system is tested and debugged before cutting.

[0022] (8) Anchor cable cutting: operate the ground control part to drive the cutting part in the groove to cut the anchor cable. After the cutting is completed, take out the cutting part in the groove and the cut anchor cable. After taking out the anchor cable, move the clamping device; move it to the next anchor cable in the same groove section by horizontal movement, vertical movement and lifting, and clamp the next anchor cable according to step (5); after installing the cutting part in the groove, cut the next anchor cable, and repeat this cycle until the cutting of the anchor cables in the same groove section is completed;

[0023] (9) Cutting is completed and equipment is removed: After all anchor cables of the same depth in the same slot section are cut, the clamp, cutting system and mobile steel frame are removed, and the next slot section of the anchor cable to be cut is moved to, and the site is cleaned up;

[0024] After optimization, in step (1) of excavating the foundation trench, a hydraulic grab slotting machine is first used to grab the earthwork covering the anchor cable, and the position of the anchor cable is preliminarily determined based on the anchor cable data provided by the design institute and the actual investigation. After the slotting machine grabs the earthwork above the anchor cable, it can be determined that the anchor cable has been grabbed based on the change in the lifting force of the hydraulic grab. The slotting speed is fast, the operation is convenient, and the position of the anchor cable can be preliminarily determined at a relatively fast speed.

[0025] After optimization, the clamp is installed with an operating probe and a lighting lamp. The installation position of the probe is determined according to actual needs, and the probe can help the clamp to clamp the anchor cable. The lighting lamp and the probe are an integrated structure. The position and operating conditions are monitored in real time by the probe and the lighting lamp, and the function of remotely controlling the clamp to clamp the anchor cable is realized, which greatly simplifies the clamping process, and the clamping operation is simple, safe and reliable.

[0026] The above technical solution has the following beneficial effects:

[0027] 1. The present invention realizes the planar movement and lifting movement of the clamp through the hydraulic lifter and the mobile steel frame, so that the clamp can find the anchor cable position through mechanical movement and realize the clamping effect on the anchor cable, without the need for a crane or manual positioning and clamping; in addition, the anchor cables in the same groove section can be found and clamped one by one through movement, and the anchor cables in the same groove section can be continuously cut, which greatly speeds up the cutting construction process and improves the cutting efficiency. There is no need for frequent disassembly and assembly, and there is no need to install multiple clamps. It is very clever and saves equipment costs.

[0028] 2. The transverse steel frame is composed of transverse steel rod 1, transverse steel rod 2, transverse connecting rod plate and transverse module. Transverse steel rod 1 and transverse steel rod 2 form the steel structure of the transverse steel frame, which improves its structural strength and stability; the transverse module is a screw structure, which enables the transverse slide to move back and forth on the transverse steel frame, thereby driving the hydraulic lifter and the clamp to move back and forth, so as to achieve the purpose of lateral movement of the clamp, and can accurately find and clamp anchor cables at different positions in the same slot section, without frequent disassembly and assembly, and without the need to install multiple clamps. It is very clever, saves equipment costs, and improves construction efficiency. In addition, the transverse module is a synchronously running double screw structure, which increases the connection points with the hydraulic lifter, improves the stability of the transverse movement, and improves the load-bearing capacity of the transverse steel frame. The transmission structure adopts a driving wheel, a driven wheel and a belt structure, and the transmission is stable.

[0029] 3. The longitudinal steel frame is composed of longitudinal steel rod 1, longitudinal steel rod 2, longitudinal module 1 and longitudinal module 2. The transverse steel rod 1 and longitudinal steel rod 2 form the steel structure of the longitudinal steel frame to improve its structural strength and stability. The longitudinal module 1 and the longitudinal module 2 are both screw structures, so that the longitudinal slide can move back and forth on the longitudinal steel frame, thereby driving the transverse steel frame to move back and forth on the longitudinal steel frame, and finally driving the hydraulic lifter and the clamp to move back and forth, so as to achieve the purpose of longitudinal movement of the clamp, and enable the clamp to approach or move away from the groove wall, providing convenience for the clamp to find and clamp the anchor cable, and at the same time simplifying the transfer of the clamp and clamping of other anchor cables in the same groove section, without frequent disassembly and assembly, and without installing multiple clamps, which is very clever, saving equipment costs and improving construction efficiency. In addition, the longitudinal movement module is divided into longitudinal movement module 1 and longitudinal movement module 2 which operate synchronously, and the connection points with the transverse movement steel frame are increased, thereby improving the stability of the longitudinal movement and the load-bearing capacity of the longitudinal movement steel frame.

[0030] 4. Accurate positioning. The diamond wire saw cutting process uses a special probe to find out the exact location of the anchor cable, and uses a hydraulic clamp to clamp and fix the anchor cable. The wire saw passes closely from the upper part of the anchor cable and presses the anchor cable downward.

[0031] 5. Small disturbance. The anchor cable is ground with a diamond wire saw at high speed. The generated powder is cooled by mud water and finally forms a cutting surface. It has no impact on the foundation trench wall and will not damage or disturb the mud wall.

[0032] 6. High efficiency. Diamond wire saw cutting uses the self-developed diamond wire saw cutting machine, which is mainly divided into two parts: the main machine of the diamond wire saw cutting machine (including the control panel) and the clamp (including the hydraulic pump). It is easy to assemble and operate, and has high efficiency in batch cutting of anchor cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings:

[0034] Figure 1 This is a schematic diagram of the structure of the mobile steel frame;

[0035] Figure 2 It is a structural schematic diagram of the hydraulic lifter connecting the clamp;

[0036] Figure 3 It is a structural schematic diagram of the transverse steel rod one or the transverse steel rod two;

[0037] Figure 4 It is a structural schematic diagram of the transverse sliding seat;

[0038] Figure 5 It is a structural schematic diagram of the transverse movement module;

[0039] Figure 6 It is a structural schematic diagram of the longitudinally moving steel rod one or the longitudinally moving steel rod two;

[0040] Figure 7 It is a structural schematic diagram of the longitudinal sliding seat;

[0041] Figure 8 It is a structural schematic diagram of the longitudinal shift module 1;

[0042] Fig. 9 It is a structural schematic diagram of the longitudinal shift module 2;

[0043] Fig.10 Schematic diagram of cutting anchor cables in the groove. DETAILED DESCRIPTION

[0044] In conjunction with the accompanying drawings, a structure and a method for removing an existing anchor cable intruding into a station foundation pit according to the present invention are specifically described below:

[0045] 1. A structure for removing the existing anchor cables that have invaded the station foundation pit

[0046] A structure for cutting off existing anchor cables intruding into a station foundation pit comprises a cutting system and a clamp 5, wherein the clamp 5 clamps the anchor cables, and the cutting system cuts the anchor cables through a diamond wire saw 6. The mechanism also comprises a hydraulic lifter 4 and a movable steel frame 1, wherein the hydraulic lifter 4 is mounted on the clamp 5; the movable steel frame 1 comprises a transverse steel frame 2 and a longitudinal steel frame 3, wherein the hydraulic lifter 4 and the clamp 5 are mounted together on the transverse steel frame 2 and connected to a transverse module 25 inside the transverse steel frame 2; the transverse steel frame 2 is mounted on the longitudinal steel frame 3 and connected to a longitudinal module inside the longitudinal steel frame 3; the clamp 5 locates and clamps the anchor cables through the hydraulic lifter 4, the transverse module 25 and the longitudinal module.

[0047] The present invention realizes the planar movement and lifting movement of the clamp 5 through the hydraulic lifter 4 and the mobile steel frame 1, so that the clamp 5 can find the anchor cable position through mechanical movement and realize the clamping effect on the anchor cable, without the need for a crane or manual positioning and clamping; in addition, the anchor cables in the same groove section can be found and clamped one by one through movement, and the anchor cables in the same groove section can be continuously cut, which greatly speeds up the cutting construction process and improves the cutting efficiency. There is no need for frequent disassembly and assembly, and there is no need to install multiple clamps 5. It is very clever and saves equipment costs.

[0048] The transverse steel frame 2 includes a transverse steel rod 1 21, a transverse steel rod 22, a transverse connecting rod plate 23 and a transverse module 25. The transverse steel rod 1 21 and the transverse steel rod 22 are connected with a transverse connecting rod plate 23, and the transverse connecting rod plate 23 is arranged near the end of the transverse steel frame 2; the transverse module 25 includes a transverse motor 251, a transverse screw 1 255, a transverse screw 256, a transverse nut 1 257, a transverse nut 259, a transverse slider 1 258 and a transverse slider 260. The transverse motor 251 is installed in the transverse connecting rod plate 23, and the transverse motor 251 is connected with a driving wheel 252, which is connected to the transverse screw 1 255, and the transverse screw 1 255 is installed in the transverse steel rod 21, and the transverse screw 255 is installed with a transverse nut 257 and a transverse slider 258; the driving wheel 252 is transmitted to the driven wheel 254 through the belt 253, and the driven wheel 254 is connected to the transverse screw 256, and the transverse screw 256 is installed in the transverse steel rod 22, and the transverse nut 259 and the transverse slider 260 are installed on the transverse screw 256; the transverse slider 258 and the transverse slider 260 are connected to the transverse slide 24 through the transverse connecting rod 261, and the transverse slide 24 is installed on the transverse steel rod 21 and the transverse steel rod 22, and is connected to the hydraulic lifter 4 through the transverse slide 24.

[0049] The transverse steel frame 2 is composed of a transverse steel rod 1 21, a transverse steel rod 22, a transverse connecting rod 261 plate 23 and a transverse module 25. The transverse steel rod 1 21 and the transverse steel rod 22 form the steel structure of the transverse steel frame 2, which improves its structural strength and stability; the transverse module 25 is a screw structure, which enables the transverse slide 24 to move back and forth on the transverse steel frame 2, thereby driving the hydraulic lifter 4 and the clamp 5 to move back and forth, so as to achieve the purpose of lateral movement of the clamp 5, and can accurately find and clamp the anchor cables at different positions in the same slot section, without frequent disassembly and assembly, and without installing multiple clamps 5, which is very clever, saves equipment costs, and improves construction efficiency. In addition, the transverse module 25 is a synchronously operated double screw structure, which increases the connection points with the hydraulic lifter 4, improves the stability of the transverse movement, and improves the load-bearing capacity of the transverse steel frame 2. The transmission structure adopts a driving wheel 252, a driven wheel 254 and a belt 253 structure, and the transmission is stable.

[0050] Both sides of the transverse steel rod 1 21 and the transverse steel rod 2 22 are provided with transverse slide rails 211. The transverse slide seat 24 is a U-shaped structure, and the side walls of the U-shaped groove are provided with transverse pulleys 241, which are installed in the transverse slide rails 211; two transverse slide seats 24 are installed on the transverse steel rod 1 21 and the transverse steel rod 2 22 (a total of four transverse slide seats 24), and the hydraulic lifter 4 is installed through the four transverse slide seats 24. The use of the transverse pulley 241 and the transverse slide rail 211 structure can reduce the friction force in the transverse movement, improve the smoothness of the transverse movement, and reduce the probability of accidents such as jamming. The structure is simple and the design is ingenious. Connecting the hydraulic lifter 4 in the form of four transverse slide seats 24 can improve the smoothness of the transverse movement.

[0051] The longitudinal shift steel frame 3 includes a longitudinal shift steel rod 1 31, a longitudinal shift steel rod 2 32, a longitudinal shift module 1 33 installed on the longitudinal shift steel rod 1 31, and a longitudinal shift module 2 34 installed on the longitudinal shift steel rod 2 32. The longitudinal shift module 1 33 and the longitudinal shift module 2 34 move synchronously and are aligned so that the two ends of the transverse shift steel frame 2 are always at the same position of the longitudinal shift steel rod 1 31 and the longitudinal shift steel rod 2 32; the longitudinal shift module 1 33 includes a longitudinal shift motor 1 331, a longitudinal shift lead screw 1 332, a longitudinal shift nut 1 333 and a longitudinal shift slider 1 334. The longitudinal shift motor 1 331 is connected to the longitudinal shift lead screw 1 332, and the longitudinal shift lead screw 1 332 is installed with a longitudinal shift nut 1 333. Nut 1 333 is connected to longitudinal slider 1 334; longitudinal module 2 34 includes longitudinal motor 2 341, longitudinal screw 2 342, longitudinal nut 2 343 and longitudinal slider 2 344, longitudinal motor 2 341 is connected to longitudinal screw 2 342, longitudinal screw 2 342 is equipped with longitudinal nut 2 343, longitudinal nut 2 343 is connected to longitudinal slider 2 344; longitudinal slider 1 334 and longitudinal slider 2 344 are both connected to longitudinal slide 35 through longitudinal connecting rod 335, longitudinal slide 35 is connected to longitudinal steel rod 1 31 and longitudinal steel rod 2 32, and connected to transverse steel rod 1 21 and transverse steel rod 2 22 of transverse steel frame 2.

[0052] The longitudinal moving steel frame 3 is composed of a longitudinal moving steel rod 1 31, a longitudinal moving steel rod 2 32, a longitudinal moving module 1 33 and a longitudinal moving module 2 34. The longitudinal moving steel rod 1 31 and the longitudinal moving steel rod 2 32 form the steel structure of the longitudinal moving steel frame 3 to improve its structural strength and stability; the longitudinal moving module 1 33 and the longitudinal moving module 2 34 are both screw structures, so that the longitudinal moving slide 35 can move back and forth on the longitudinal moving steel frame 3, thereby driving the transverse moving steel frame 2 to move back and forth on the longitudinal moving steel frame 3, and finally driving the hydraulic lifter 4 and the clamp 5 to move back and forth longitudinally, so as to achieve the purpose of longitudinal movement of the clamp 5, and enable the clamp 5 to approach or move away from the groove wall, providing convenience for the clamp 5 to find and clamp the anchor cable, and at the same time simplifying the transfer of the clamp 5 and clamping of other anchor cables in the same groove section, without frequent disassembly and assembly, and without installing multiple clamps 5, which is very clever, saves equipment costs, and improves construction efficiency. In addition, the longitudinal movement module is divided into a longitudinal movement module 1 33 and a longitudinal movement module 2 34 that operate synchronously, which increases the connection points with the transverse movement steel frame 2, improves the stability of the longitudinal movement, and increases the load-bearing capacity of the longitudinal movement steel frame 3.

[0053] Both sides of the longitudinal steel rod 1 31 and the longitudinal steel rod 2 32 are provided with longitudinal slide rails 311. The longitudinal slide seat 35 is a U-shaped structure, and the side walls of the U-shaped groove are provided with longitudinal pulleys 351, which are installed in the longitudinal slide rails 311. The longitudinal pulley 351 and the longitudinal slide rail 311 structure can reduce the friction force in the longitudinal movement, improve the smoothness of the longitudinal movement, and reduce the probability of accidents such as jamming. The structure is simple and the design is ingenious.

[0054] The transverse steel frame 2 includes two groups, which are respectively installed at the front and rear ends of the longitudinal steel frame 3. A separation steel rod 8 is provided between the two groups of transverse steel frames 2, and the separation steel rod 8 is installed on the longitudinal steel frame 3. The two groups of transverse steel frames 2 are equipped with the same longitudinal module 1 33, longitudinal module 2 34 and longitudinal slide 35. The two groups of transverse steel frames 2 are respectively equipped with a clamp 5 and a hydraulic lifter 4 to achieve simultaneous cutting of the existing anchor cables on the groove walls on both sides, improve cutting efficiency, and shorten construction period; and each is equipped with a longitudinal module 1 33, longitudinal module 2 34 and longitudinal slide 35, so that the two clamps 5 can operate independently without being affected by each other.

[0055] The hydraulic lifter 4 includes a hydraulic cylinder 41 and a base plate 42. The piston rod of the hydraulic cylinder 41 is connected to the clamp 5 through the base plate 42 and fixedly connected to the clamp 5 by bolts. The base plate 42 is provided with a guide hole. The upper end of the clamp 5 is connected with a guide rod 56. The guide hole and the guide rod 56 match each other. There are 4 sets of guide holes and guide rods 56. The bottom surface of the base plate 42 is provided with 4 mounting plates 43. The mounting plates 43 match the transverse slide 24. The two correspond one to one and are fixedly connected to each other by bolts. The hydraulic lifter 4 is fixedly connected to the clamp 5 by bolts, which is not only firmly connected but also detachable. The guide rod 56 and the guide hole play a guiding role in the lifting movement, thereby improving the stability of the lifting.

[0056] 2. A method for removing the existing anchor cable intruding into the station foundation pit includes the following steps:

[0057] (1) Excavate the foundation trench to expose the anchor cable to be removed; first use a hydraulic grab slotting machine to grab the earth above the anchor cable, and preliminarily determine the position of the anchor cable based on the anchor cable data provided by the design institute and the actual survey. After the slotting machine grabs the earth above the anchor cable, it can be determined that the anchor cable has been grabbed based on the change in the lifting force of the hydraulic grab. The slotting speed is fast and the operation is convenient, and the anchor cable position can be preliminarily determined at a relatively fast speed.

[0058] (2) Anchor cable positioning: After the trenching machine has cleared the soil above the anchor cable and preliminarily determined the anchor cable position, a special anchor cable geophysical exploration device is used to accurately locate the anchor cable and mark it on the guide wall;

[0059] (3) Installation of the mobile steel frame 1: According to the position of the anchor cable, the mobile steel frame 1 is installed at the corresponding position of the foundation groove, and then fixed by connecting steel pipes, cross arms, pressure plates and ground anchor bolts. After the installation of the mobile steel frame 1 is completed, a trial run is carried out;

[0060] (4) Installation of the clamp 5: Install the hydraulic lifter 4 on the clamp 5, and then use a crane to install the clamp 5 on the corresponding transverse steel frame 2, fix the mounting plate 43 and the transverse slide 24; test run the transverse module 25 and the longitudinal module; hydraulic lifter 4;

[0061] The clamp 5 is installed with an operating probe 53 and a lighting lamp 54. The installation position of the probe 53 is determined according to actual needs, and the probe 53 can help the clamp 5 to clamp the anchor cable. The lighting lamp 54 is an integrated structure with the probe 53. The position and operating conditions are monitored in real time by the probe 53 and the lighting lamp 54, and the function of remotely controlling the clamp 5 to clamp the anchor cable is realized, which greatly simplifies the clamping process, and the clamping operation is simple, safe and reliable.

[0062] (5) The clamp 5 clamps the anchor cable: Move the longitudinal movement module, place one side of the guide wheel 52 of the clamp 5 against the groove wall, and lower the clamp 5 through the hydraulic lifter 4. When lowering, try to align the center of the clamp 5 with the position of the anchor cable according to the position and depth of the anchor cable, and accurately control and record the lowering depth of the clamp 5; when the guide plate 51 encounters the anchor cable, use the transverse movement module 25 to slightly adjust the movable clamp 5 left and right and slowly lower it, so that the clamp 5 clamps the anchor cable along the guide plate 51. After the position is aligned, drive the clamp head 55 of the clamp 5 to clamp the anchor cable, and use the hydraulic lifter 4 to slightly lift the clamp 5 to check whether the clamp 5 has clamped the anchor cable;

[0063] (6) Install another set of clamps 5 onto another transverse steel frame 2 according to the methods of step (4) and step (5), and then clamp and fix the anchor cable of the side groove wall;

[0064] (7) Installing the cutting system: The cutting system includes a control part and a cutting part 7 in the groove. A ground control part is installed on one side of the guide wall and electrically connected to the cutting part 7 in the groove. Various control lines connected are fixed on the ground concrete surface. A protective cover is installed around the rotating equipment, and a guardrail is installed next to the transmission system. The cutting system is tested and debugged before cutting.

[0065] (8) Anchor cable cutting: operate the ground control part to drive the in-groove cutting part 7 to cut the anchor cable. After the cutting is completed, take out the in-groove cutting part 7 and the cut anchor cable. After taking out the anchor cable, move the clamp 5; move it to the next anchor cable in the same groove section by horizontal movement, vertical movement and lifting, and clamp the next anchor cable according to step (5); after installing the in-groove cutting part 7, cut the next anchor cable, and repeat this cycle until the cutting of the anchor cables in the same groove section is completed;

[0066] (9) Cutting is completed and equipment is removed: After all anchor cables of the same depth in the same slot section are cut, the clamp 5, cutting system and mobile steel frame 1 are removed, and the next slot section of the anchor cable to be cut is moved to and the site is cleaned.

[0067] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A structure for cutting off existing anchor cables intruding into a station foundation pit, comprising a cutting system and a clamp, wherein the clamp clamps the anchor cables, and the cutting system cuts the anchor cables by a diamond wire saw, characterized in that: The structure also includes a hydraulic lifter and a mobile steel frame, wherein the hydraulic lifter is installed on the clamp; the mobile steel frame includes a transverse steel frame and a longitudinal steel frame, wherein the hydraulic lifter and the clamp are installed together on the transverse steel frame and connected to the transverse module inside the transverse steel frame; the transverse steel frame is installed on the longitudinal steel frame and connected to the longitudinal module inside the longitudinal steel frame; The clamping device locates and clamps the anchor cable through the hydraulic lifter, the transverse module and the longitudinal module; the transverse steel frame includes a transverse steel rod 1, a transverse steel rod 2, a transverse connecting rod plate and a transverse module, and a transverse connecting rod plate is connected between the transverse steel rod 1 and the transverse steel rod 2; the transverse module includes a transverse motor, a transverse screw 1, a transverse screw 2, a transverse nut 1, a transverse nut 2, a transverse slider 1 and a transverse slider 2, and the transverse motor is installed in the transverse connecting rod plate, and the transverse motor is connected to a driving wheel. The driving wheel is connected to the transverse screw 1, the transverse screw 1 is installed in the transverse steel rod 1, and the transverse screw 1 is installed with a transverse nut 1 and a transverse slider 1; the driving wheel is transmitted to the driven wheel through a belt, the driven wheel is connected to the transverse screw 2, the transverse screw 2 is installed in the transverse steel rod 2, and the transverse screw 2 is installed with a transverse nut 2 and a transverse slider 2; the transverse slider 1 and the transverse slider 2 are both connected to the transverse slide seat through a transverse connecting rod, and the transverse slide seat is connected to the hydraulic lifter; The transverse steel rod 1 and the transverse steel rod 2 are both provided with transverse slide rails, and the transverse slide seat is a U-shaped structure, and the side walls of the U-shaped groove are provided with transverse pulleys, and the transverse pulleys are installed in the transverse slide rails; two transverse slide seats are installed on the transverse steel rod 1 and the transverse steel rod 2, and the hydraulic lifter is installed through four transverse slide seats; the longitudinal steel frame includes a longitudinal steel rod 1, a longitudinal steel rod 2, a longitudinal module 1 installed on the longitudinal steel rod 1, and a longitudinal module 2 installed on the longitudinal steel rod 2, and the longitudinal module 1 and the longitudinal module 2 move synchronously and are aligned; the longitudinal module 1 includes a longitudinal The longitudinal movement module comprises a first longitudinal movement motor, a first longitudinal movement screw, a first longitudinal movement nut and a first longitudinal movement slider. The first longitudinal movement motor is connected to the first longitudinal movement screw, the first longitudinal movement screw is installed with the first longitudinal movement nut, and the first longitudinal movement slider is connected to the first longitudinal movement slider; the second longitudinal movement module comprises a second longitudinal movement motor, a second longitudinal movement screw, a second longitudinal movement nut and a second longitudinal movement slider. The second longitudinal movement motor is connected to the second longitudinal movement screw, the second longitudinal movement screw is installed with the second longitudinal movement nut, and the second longitudinal movement slider is connected to the second longitudinal movement slider; the first longitudinal movement slider and the second longitudinal movement slider are both connected to the longitudinal movement slide through a longitudinal movement connecting rod, and the longitudinal movement slide is installed on the transverse movement steel frame.

2. The structure for removing the existing anchor cables intruding into the station foundation pit according to claim 1, characterized in that: The longitudinal steel rod 1 and the longitudinal steel rod 2 are provided with longitudinal slide rails, and the longitudinal slide seat is a U-shaped structure, and the side walls of the U-shaped groove are provided with longitudinal pulleys, and the longitudinal pulleys are installed in the longitudinal slide rails.

3. The structure for removing the existing anchor cables intruding into the station foundation pit according to claim 1, characterized in that: The transverse steel frame includes two groups, which are respectively installed at the front and rear ends of the longitudinal steel frame. A partition steel rod is provided between the two groups of the transverse steel frames, and the partition steel rod is installed on the longitudinal steel frame; the two groups of the transverse steel frames are equipped with the same longitudinal module group 1, the longitudinal module group 2 and the longitudinal slide.

4. The structure for removing the existing anchor cables intruding into the station foundation pit according to claim 1 is characterized in that: The hydraulic lifter includes a hydraulic cylinder and a base plate, the piston rod of the hydraulic cylinder is connected to the clamp through the base plate, and is fixedly connected to the clamp by bolts; the base plate is provided with a guide hole, the upper end of the clamp is connected with a guide rod, the guide hole and the guide rod match each other, and the guide hole and the guide rod are provided with 4 groups; the bottom surface of the base plate is provided with 4 mounting plates, the mounting plates match each other with the transverse slide, the two correspond one to one, and are fixedly connected to each other by bolts.

5. A method for removing an existing anchor cable intruding into a station foundation pit as claimed in any one of claims 1 to 4, characterized in that The steps include: (1) Excavate the foundation trench to expose the anchor cable section to be removed; (2) Anchor cable positioning: After the trenching machine has cleared the soil above the anchor cable and preliminarily determined the anchor cable position, a special anchor cable geophysical exploration device is used to accurately locate the anchor cable and mark it on the guide wall; (3) Installation of mobile steel frame: According to the position of the anchor cable, install the mobile steel frame at the corresponding position of the foundation groove, and then fix it by connecting steel pipes, cross arms, pressure plates and ground anchor bolts. After the installation of the mobile steel frame is completed, conduct a trial run; (4) Installation of the clamp: Install the hydraulic lifter on the clamp, and then use a crane to install the clamp on the corresponding transverse steel frame, fix the mounting plate and the transverse slide; test run the transverse module and longitudinal module respectively; hydraulic lifter; (5) The clamp clamps the anchor cable: Move the longitudinal movement module, place one side of the guide wheel of the clamp against the groove wall, and lower the clamp through the hydraulic lifter. When lowering, try to align the center of the clamp with the position of the anchor cable according to the position and depth of the anchor cable, and accurately control and record the lowering depth of the clamp; when the guide plate encounters the anchor cable, use the transverse movement module to slightly adjust the mobile clamp left and right and slowly lower it, so that the clamp clamps the anchor cable along the guide plate. After aligning the position, drive the clamp to clamp the anchor cable, and use the hydraulic lifter to slightly lift the clamp to check whether the clamp has clamped the anchor cable; (6) Install another set of clamps on another transverse steel frame according to the method of step (4) and step (5), and then clamp and fix the anchor cable of the other side of the groove wall; (7) Installation of cutting system: The cutting system includes a control part and a cutting part in the slot. The ground control part is installed on one side of the guide wall and electrically connected to the cutting part in the slot. The connected control lines are fixed on the ground concrete surface. A protective cover is installed around the rotating equipment and a guardrail is installed next to the transmission system. The cutting system is tested and debugged before cutting. (8) Anchor cable cutting: operate the ground control part to drive the cutting part in the groove to cut the anchor cable. After the cutting is completed, take out the cutting part in the groove and the cut anchor cable. After taking out the anchor cable, move the clamping device; move it to the next anchor cable in the same groove section by horizontal movement, vertical movement and lifting, and clamp the next anchor cable according to step (5); after installing the cutting part in the groove, cut the next anchor cable, and repeat this cycle until the cutting of the anchor cables in the same groove section is completed; (9) Cutting is completed and equipment is removed: After all anchor cables of the same depth in the same slot section are cut, the clamps, cutting system and mobile steel frame are removed, and the next slot section of the anchor cable to be cut is moved and the site is cleaned.

6. The method for removing the existing anchor cables intruding into the station foundation pit according to claim 5 is characterized in that: In the step (1) of excavating the foundation trench, a hydraulic grab trenching machine is first used to grab the earth covering the anchor cable, and the position of the anchor cable is preliminarily determined based on the anchor cable data provided by the design institute and the actual investigation. After the trenching machine grabs the earth above the anchor cable, it can be determined that the anchor cable has been grabbed based on the change in the lifting force of the hydraulic grab.

7. The method for removing the existing anchor cables intruding into the station foundation pit according to claim 5 is characterized in that: An operating probe and a lighting lamp are installed on the clamp. The installation position of the probe is determined according to actual needs, and it is based on whether the probe can help the clamp to clamp the anchor cable. The lighting lamp and the probe are an integrated structure.

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