An integrated construction equipment for underwater installation and backfilling of large-diameter GRP pipes and its application

Abstract

The present invention relates to the field of building construction technology, and in particular to an integrated construction device for underwater installation and backfilling of large-diameter GRP pipes and its application. It includes a pipe hoisting system, a stone backfilling system and a stone lowering system. The stone backfilling system is connected to the top of the pipe hoisting system through a connector, and the stone lowering system is connected to the top of the stone backfilling system through a slide pipe and a connecting hose in turn, and the stone is directly lowered into the hopper of the stone backfilling system through the slide pipe and the connecting hose. The present invention can realize automatic lifting, adjustment, and docking of the pipeline underwater, greatly reducing the use of divers. In addition, through the measurement and control system, the technicians in the operating monitoring room can observe the posture of the pipeline and the installation quality in real time, thereby strengthening the quality control of the pipeline installation. The backfilling system cooperates with the stone lowering system to enable the stone to be backfilled to the corresponding position in a concentrated, accurate and rapid manner, greatly improving the construction efficiency, enhancing the quality of the backfilling area, and reducing the waste of raw materials.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to large-diameter GRP pipeline underwater installation and backfilling integrated construction equipment and application thereof. Background Art

[0002] GRP is a new type of pipe material that is widely used in municipal construction at home and abroad. This material is light, corrosion-resistant, environmentally friendly, and low-cost. However, this type of pipe body has low strength and will be damaged if a collision occurs during installation. In addition, this type of pipe is connected only by a sleeve of about 30cm in length, and the inner diameter of the sleeve is only 2mm larger than the outer diameter of the pipe, which requires extremely high installation precision.

[0003] In the Chinese patent application number ZL201821378867.0, an underwater butt joint auxiliary device is disclosed, including a clamp mechanism, a guide mechanism, and a tensioning mechanism; the clamp mechanism includes a circular double-body clamp I and a circular double-body clamp II, and the guide mechanism includes a U-shaped limit frame located on the left and right sides of the clamp I and a guide rod located on the left and right sides of the clamp II; the tightening and pulling mechanism includes eye plates located on both sides of the clamp mechanism, a tightening device connected to the lower end of the clamp mechanism, and a jack connected between the clamp I and the clamp II. This pulling and closing method requires a large number of divers to cooperate, and the maximum water depth cannot exceed 10 meters, otherwise the divers need to decompress, and the number of divers required will increase exponentially. This auxiliary device only relies on floating crane lifting and divers to command the pipeline underwater for adjustment, and has high requirements for weather and sea conditions. The traditional method of stone dumping is to use mechanical equipment such as backhoe excavators to directly fill the stone into the sea. This method is not suitable for sea areas with deep water and high water flow rate. It is easy to cause waste of stone, and the dumping position is inaccurate and not fixed. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problems in the existing pipeline installation process, such as the need for a large number of divers, the water depth cannot exceed 10m, the high requirements on climatic conditions, the poor crushed stone backfilling accuracy, and the waste of raw materials. A large-diameter GRP pipeline underwater installation and backfilling integrated construction equipment and application are provided, which can realize automatic adjustment, automatic installation, and automatic backfilling of pipelines in water. The equipment has the characteristics of high pipeline installation accuracy, less resources used, fast construction efficiency, and high backfilling accuracy.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: an integrated construction equipment for underwater installation and backfilling of large-diameter GRP pipes, characterized in that it includes a pipe hoisting system, a stone backfilling system and a stone lowering system, wherein the stone backfilling system is connected to the top of the pipe hoisting system through a connecting piece, and the stone lowering system is connected to the top of the stone backfilling system through a slide pipe and a connecting hose in turn, and the stone is directly lowered into the hopper of the stone backfilling system through the slide pipe and the connecting hose;

[0006] The pipeline hoisting system includes a transverse adjustment cylinder, a pipeline hanging beam support beam, a pipeline hanging beam, and vertically adjustable legs. The pipeline hanging beam is connected to the pipeline to be installed through a sling. The pipeline hanging beam is connected to the bottom of the pipeline hanging beam support beam, and the pipeline is adjusted in the axial direction by a transverse adjustment cylinder connected to the pipeline hanging beam support beam. The vertically adjustable legs adjust the vertical movement of the entire device through a vertical cylinder connected thereto.

[0007] The stone backfilling system includes a trolley walking mechanism, a pipeline stabilizing trolley, a hopper, a stone spout, and a measuring tower. The measuring tower is connected to both ends of the main beam and extends out of the sea. The upper part of the measuring tower is connected to a sensor and a GPS receiver. The hopper is connected to the top of the vertically adjustable legs. The bottom of the hopper is connected to the pipeline stabilizing trolley, which is connected to the trolley walking mechanism. The trolley walking mechanism moves on the main beam by itself through a hinge device and a matching roller device, and is used to throw the stone in the hopper to the required position according to demand. The stone spout is connected to the lower end of the hopper, and the stone spout is connected to the spout oil cylinder, which controls the opening and closing of the stone spout.

[0008] The stone lowering system includes a funnel, a chute, a chute traction rope, a chute winch, a traveling assembly, a traveling drive device, a chassis, and a connecting hose. The funnel and the chute winch are both connected to the chassis. The chassis is connected to the track through the traveling assembly, and the chassis is pushed by the traveling drive device connected to the chassis to move on the track through the traveling assembly. The chute traction rope is connected to the chute winch at the upper part and is connected to the chute at the lower part to control the up and down movement of the chute. The connecting hose is connected to the lower end of the chute and extends into the hopper.

[0009] The measurement and control system of the measuring tower includes CCTV at important locations, sound and light alarms, real-time system working parameter monitoring screen display, manual control handle, automatic control button, emergency stop button, signal interface of the slide system, intercom system-GPS positioning system, outrigger extension length measurement, horizontal and vertical adjustment cylinder plunger rod extension length measurement, main beam level measuring instrument, main beam height measuring instrument, pipeline stabilization trolley travel displacement and speed measurement, hopper stone detection, intelligent control software, one-key operation function, and local control console.

[0010] The local console includes a fine-tuning module and a storage comparison module;

[0011] The fine-tuning module: determines whether fine-tuning is required based on the actual position information of the pipeline sent by the measuring tower. If necessary, the vertical cylinder and the horizontal adjustment cylinder are remotely operated on the console to fine-tune the non-butt end of the pipeline;

[0012] The storage comparison module stores the position information of the last fine-tuning end for comparison when the next pipeline is connected.

[0013] The walking assembly includes a rack and a toothed chain, which can move on the track, thereby driving the chassis to move.

[0014] The slide pipe is a retractable hollow steel pipe structure, and each steel pipe connection position is provided with a sliding aid device to help the slide pipe slide up and down.

[0015] The slide tube traction rope is a steel wire rope.

[0016] The slide pipe winch is in the form of a hoist, which can control the retraction and extension of the slide pipe traction rope. In the shutdown state, the slide pipe can be retracted to the ship's side for fixation.

[0017] An application of large-diameter GRP pipeline underwater installation backfilling integrated construction equipment, characterized in that it includes the following steps:

[0018] (1) Pipeline hoisting: After arriving at the scheduled construction sea area, first tighten and fix the GRP pipe to the bottom of the pipe hanging beam with a sling, and then use a crane to hoist the entire hanger together with the pipe to the seabed within the allowable range of positioning error according to the GPS positioning signal;

[0019] (2) Pipeline adjustment: Through underwater command by divers and precise positioning by GPS of the measuring tower, the pipeline hanging beam is adjusted by the lateral adjustment cylinder to control the lateral deviation of the pipeline, and the height of the four legs of the hanger is adjusted by the vertical cylinder to accurately dock the pipeline to be installed with the installed pipeline. After the pipelines are docked, the console determines whether fine-tuning is required based on the actual position information of the pipelines fed back. If necessary, the console remotely operates the leg cylinders and lateral adjustment cylinders to fine-tune the non-docking end of the pipeline, and at the same time stores the position information of the end for use when docking the next pipeline.

[0020] (3) Backfilling with crushed stone: After the pipeline is installed, the operator operates the slide pipe winch, lowers the slide pipe and adjusts the traction rope so that the slide pipe is gradually lowered to the hopper position. The operator transports the crushed stone into the hopper. Under the action of its own weight, the crushed stone falls above the target through the slide pipe. The operator controls the travel drive system to make the entire stone lowering system move on the track and freely lower the stone according to requirements. The trolley travel mechanism moves on the main beam by itself through the hinge. The upper slide pipe moves together with the lower backfill through the trolley, and the crushed stone is backfilled to the predetermined position through the stone nozzle through the nozzle cylinder;

[0021] (4) Folding up the slide pipe and lifting it off the hanger: After the construction is completed, the operator controls the slide pipe winch to tighten the slide pipe adjustment traction rope, lift the slide pipe, and fix it on the side of the ship. Then, remove the sling on the pipe and lift it off the pipe installation system.

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

[0023] (1) The present invention can realize the transmission of the real-time dynamic position of the pipeline underwater through the sensors and GPS receiver on the measuring tower, thereby ensuring the installation accuracy of the pipeline.

[0024] (2) The present invention can realize precise dynamic adjustment of the pipeline underwater by means of the lateral adjustment cylinder, the vertical adjustment cylinder legs and the matching control system.

[0025] (3) The present invention can arbitrarily backfill the gravel in the hopper to the bottom of the pipeline through the trolley walking mechanism, ensuring that the gravel will not bury the pipeline legs and the slings at the bottom of the pipeline.

[0026] (4) The present invention can directly lower the stones from the barge into the funnel of the backfill system through the chute through the stone lowering system, thereby reducing the waste of stones and greatly improving the accuracy of stone lowering.

[0027] (5) The funnel of the stone lowering system and the pipeline backfill system are connected by a hose. When the upper barge is slightly shaken, the softness of the hose itself can be used without affecting the stability of the pipeline backfill.

[0028] (6) The invention discloses an integrated underwater installation and backfilling construction device for large-diameter GRP pipes and its application, which is applied to the submarine installation of large-diameter GRP pipes and is suitable for conditions such as poor wind and wave conditions and deep construction waters. It greatly reduces the use of divers, greatly improves construction efficiency, reduces the safety risks of divers in diving construction, and effectively reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic front view of the present invention (including the measuring frame).

[0030] Figure 2It is a schematic side view of the present invention (without the measuring frame).

[0031] Figure 3 This is a schematic front view of the pipeline hoisting system and the stone backfilling system of the present invention (excluding the measuring frame).

[0032] Figure 4 This is a schematic front view of the pipeline hoisting system and the stone backfilling system of the present invention (including the measuring frame).

[0033] Figure 5 It is an AA cross-sectional view of the pipeline hoisting system and the stone backfilling system of the present invention.

[0034] Figure 6 It is a schematic top view of the pipeline hoisting system and the stone backfilling system of the present invention.

[0035] In the figure: 1. Vertically adjustable legs, 2. Stone nozzle, 3. Lateral adjustment cylinder, 4. Nozzle cylinder, 5. Hopper, 6. Pipe stabilizing trolley, 7. Pipe suspension beam support beam, 8. Pipe suspension beam, 9. Sling, 10. GRP pipe, 11. Trolley travel mechanism, 12. Measuring tower, 13. Main beam, 14. Funnel, 15. Slide winch, 16. Travel drive device, 17. Chassis, 18. Travel assembly, 19. Slide traction rope, 20. Slide, 21. Connecting hose. DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings and embodiments, but the present invention is not limited to the specific embodiments.

[0037] Example 1

[0038] like Figure 1-6 As shown, a large-diameter GRP pipeline underwater installation backfilling integrated construction equipment includes a pipeline hoisting system, a stone backfilling system and a stone lowering system. The stone backfilling system is connected to the top of the pipeline hoisting system through a connecting piece, and the stone lowering system is connected to the top of the stone backfilling system through a slide pipe 20 and a connecting hose 21 in turn, and the stone is directly lowered into the hopper 5 of the stone backfilling system through the slide pipe 20 and the connecting hose 21;

[0039] The pipeline hoisting system includes a transverse adjustment cylinder 3, a pipeline hanging beam support beam 7, a pipeline hanging beam 8, and a vertically adjustable leg 1. The pipeline hanging beam 8 is connected to the pipeline to be installed through a sling 9. The pipeline hanging beam 8 is connected to the bottom of the pipeline hanging beam support beam 7, and the pipeline is adjusted in the axial direction by the transverse adjustment cylinder 3 connected to the pipeline hanging beam support beam 7. The vertically adjustable leg 1 adjusts the vertical movement of the entire device through the vertical cylinder connected thereto;

[0040] The stone backfilling system includes a trolley walking mechanism 11, a pipeline stabilizing trolley 6, a hopper 5, a stone spout 2, and a measuring tower 12. The measuring tower 12 is connected to both ends of a main beam 13 and extends out of the sea surface. The upper part of the measuring tower 12 is connected to a sensor and a GPS receiver. The hopper 5 is connected to the upper part of a vertically adjustable leg 1. The lower part of the hopper 5 is connected to a pipeline stabilizing trolley 6. The pipeline stabilizing trolley 6 is connected to the trolley walking mechanism 11. The trolley walking mechanism 11 moves on the main beam 13 by itself through a hinge device and a matching roller device, and is used to throw the stone in the hopper 5 to a required position according to demand. The stone spout 2 is connected to the lower end of the hopper 5, and the stone spout 2 is connected to a spout oil cylinder 4. The spout oil cylinder 4 controls the opening and closing of the stone spout 2.

[0041] The stone lowering system includes a funnel 14, a chute 20, a chute traction rope 19, a chute winch 15, a traveling assembly 18, a traveling drive device 16, a chassis 17, and a connecting hose 21. The funnel 14 and the chute winch 15 are both connected to the chassis 17. The chassis 17 is connected to the track through the traveling assembly 18, and the chassis 17 is pushed by the traveling drive device 16 connected to the chassis 17, so that the chassis 17 moves on the track through the traveling assembly 18. The upper part of the chute traction rope 19 is connected to the chute winch 15, and the lower part is connected to the chute 20 to control the up and down movement of the chute 20. The connecting hose 21 is connected to the lower end of the chute 20 and extends into the hopper 5.

[0042] The measurement and control system of the measuring tower 12 includes CCTV at important locations, sound and light alarms, real-time system working parameter monitoring screen display, manual control handle, automatic control button, emergency stop button, signal interface of the slide system, intercom system-GPS positioning system, outrigger extension length measurement, horizontal and vertical adjustment cylinder plunger rod extension length measurement, main beam level measuring instrument, main beam height measuring instrument, pipeline stabilization trolley travel displacement and speed measurement, hopper stone detection, intelligent control software, one-key operation function, and local control console.

[0043] The local console includes a fine-tuning module and a storage comparison module;

[0044] The fine-tuning module: determines whether fine-tuning is required based on the actual position information of the pipeline sent by the measuring tower. If necessary, the vertical cylinder and the horizontal adjustment cylinder are remotely operated on the console to fine-tune the non-butt end of the pipeline;

[0045] The storage comparison module stores the position information of the last fine-tuning end for comparison when the next pipeline is connected.

[0046] The travel assembly 18 includes a rack and a toothed chain, and can move on a track, thereby driving the chassis 17 to move.

[0047] The slide pipe 20 is a retractable hollow steel pipe structure, and each steel pipe connection position is provided with a sliding device to help the slide pipe slide up and down.

[0048] Described slide pipe traction rope 19 is a steel wire rope.

[0049] The slide pipe winch 15 is in the form of a hoist, which can control the retraction and extension of the slide pipe traction rope 19. In the shutdown state, the slide pipe can be retracted to the ship's side for fixation.

[0050] Example 2

[0051] The application of the large-diameter GRP pipe underwater installation and backfilling integrated construction equipment described in Example 1 comprises the following steps:

[0052] (1) Pipeline hoisting: After arriving at the scheduled construction sea area, first tighten and fix the GRP pipe to the bottom of the pipe hanging beam with a sling, and then use a crane to hoist the entire hanger together with the pipe to the seabed within the allowable range of positioning error according to the GPS positioning signal;

[0053] (2) Pipeline adjustment: Through underwater command by divers and precise positioning by GPS of the measuring tower, the pipeline hanging beam is adjusted by the lateral adjustment cylinder to control the lateral deviation of the pipeline, and the height of the four legs of the hanger is adjusted by the vertical cylinder to accurately dock the pipeline to be installed with the installed pipeline. After the pipelines are docked, the console determines whether fine-tuning is required based on the actual position information of the pipelines fed back. If necessary, the console remotely operates the leg cylinders and lateral adjustment cylinders to fine-tune the non-docking end of the pipeline, and at the same time stores the position information of the end for use when docking the next pipeline.

[0054] (3) Backfilling with crushed stone: After the pipeline is installed, the operator operates the slide pipe winch, lowers the slide pipe and adjusts the traction rope so that the slide pipe is gradually lowered to the hopper position. The operator transports the crushed stone into the hopper. Under the action of its own weight, the crushed stone falls above the target through the slide pipe. The operator controls the travel drive system to make the entire stone lowering system move on the track and freely lower the stone according to requirements. The trolley travel mechanism moves on the main beam by itself through the hinge. The upper slide pipe moves together with the lower backfill through the trolley, and the crushed stone is backfilled to the predetermined position through the stone nozzle through the nozzle cylinder;

[0055] (4) Folding up the slide pipe and lifting it off the hanger: After the construction is completed, the operator controls the slide pipe winch to tighten the slide pipe adjustment traction rope, lift the slide pipe, and fix it on the side of the ship. Then, remove the sling on the pipe and lift it off the pipe installation system.

[0056] The invention discloses an integrated underwater installation and backfilling construction equipment and application for large-diameter GRP pipelines. Through the horizontal oil cylinder and the vertical oil cylinder of the outrigger, the free adjustment of the pipeline in the horizontal and vertical directions underwater can be controlled, thereby ensuring the accuracy of the pipeline. Through the backfilling system, it is ensured that the backfilled gravel can be quickly and accurately backfilled to the predetermined position at the bottom of the pipeline, ensuring that the outrigger and the sling will not be buried. The measurement and control and operating system can ensure the real-time detection of the position of the pipeline, and divers and technicians can adjust the position of the pipeline at any time.

[0057] The invention discloses an integrated underwater installation and backfilling construction device for large-diameter GRP pipes and its application, which is suitable for pipe installation projects with deep water depth and poor wind and wave conditions. The application of this invention greatly reduces the use of divers, improves the quality of pipe installation, speeds up the efficiency of pipe installation, reduces construction costs, and avoids safety risks of divers underwater. The stone lowering system can be controlled to move freely by a winch, and fixed-point stone dumping can be achieved. The slide pipe is controlled up and down by adjusting the traction rope through the slide pipe, which can adapt to construction operations at different water depths in different waters. This slide pipe system can fill the stone directly to the position to be dumped, reducing the waste of stone and saving costs. In addition, by controlling the movement of the slide pipe through the walking system, the accuracy of dumping can be improved to ensure the construction quality.

[0058] The above contents are further detailed descriptions of the present invention in combination with the preferred technical solutions, and the specific implementation of the invention cannot be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, simple deductions and substitutions can be made without departing from the concept of the present invention, which should be regarded as the protection scope of the present invention.

Claims

1. An integrated construction equipment for underwater installation and backfilling of large-diameter GRP pipes, characterized by: It includes a pipeline hoisting system, a stone backfilling system and a stone lowering system. The stone backfilling system is connected to the top of the pipeline hoisting system through a connector. The stone lowering system is connected to the top of the stone backfilling system through a slide pipe and a connecting hose in turn. The stone is directly lowered into the hopper of the stone backfilling system through the slide pipe and the connecting hose. The pipeline hoisting system includes a transverse adjustment cylinder, a pipeline hanging beam support beam, a pipeline hanging beam, and vertically adjustable legs. The pipeline hanging beam is connected to the pipeline to be installed through a sling. The pipeline hanging beam is connected to the bottom of the pipeline hanging beam support beam, and the pipeline is adjusted in the axial direction by a transverse adjustment cylinder connected to the pipeline hanging beam support beam. The vertically adjustable legs adjust the vertical movement of the entire device through a vertical cylinder connected thereto. The stone backfill system includes a trolley travel mechanism, a pipeline stabilizing trolley, a hopper, a stone spout, and a measuring tower. The measurement and control system of the measuring tower includes CCTV at important locations, sound and light alarms, a real-time system working parameter monitoring screen display, a manual control handle, an automatic control button, an emergency stop button, a signal interface for the slide system, and an intercom system-GPS. Positioning system, leg extension length measurement, plunger rod extension length measurement of lateral adjustment cylinder and vertical cylinder, main beam level measuring instrument, main beam height measuring instrument, pipeline stabilization trolley travel displacement and speed measurement, hopper stone detection, intelligent control software, one-key operation function, local control console; the measuring tower is connected to both ends of the main beam and extends out of the sea surface, the upper part of the measuring tower is connected to the sensor and GPS receiver, the hopper is connected to the upper part of the vertically adjustable leg, the lower part of the hopper is connected to the pipeline stabilization trolley, the pipeline stabilization trolley is connected to the trolley travel mechanism, the trolley travel mechanism walks on the main beam by itself through a hinge device and a matching roller device, and is used to throw the stone in the hopper to the required position according to demand, the stone nozzle is connected to the lower end of the hopper, the stone nozzle is connected to the nozzle cylinder, and the nozzle cylinder controls the opening and closing of the stone nozzle; The stone lowering system includes a funnel, a chute, a chute traction rope, a chute winch, a traveling assembly, a traveling drive device, a chassis, and a connecting hose. The funnel and the chute winch are both connected to the chassis. The chassis is connected to the track through the traveling assembly, and the chassis is pushed by the traveling drive device connected to the chassis to move on the track through the traveling assembly. The chute traction rope is connected to the chute winch at the upper part and is connected to the chute at the lower part to control the up and down movement of the chute. The connecting hose is connected to the lower end of the chute and extends into the hopper.

2. The large-diameter GRP pipe underwater installation and backfilling integrated construction equipment according to claim 1, characterized in that: The local console includes a fine-tuning module and a storage comparison module; The fine-tuning module: determines whether fine-tuning is required based on the actual position information of the pipeline sent by the measuring tower. If necessary, the vertical cylinder and the horizontal adjustment cylinder are remotely operated on the console to fine-tune the non-butt end of the pipeline; The storage comparison module stores the position information of the last fine-tuning end for comparison when the next pipeline is connected.

3. The large-diameter GRP pipe underwater installation and backfilling integrated construction equipment according to claim 1, characterized in that: The walking assembly includes a rack and a toothed chain, which can move on the track, thereby driving the chassis to move.

4. The large-diameter GRP pipe underwater installation and backfilling integrated construction equipment according to claim 1, characterized in that: The slide pipe is a retractable hollow steel pipe structure, and each steel pipe connection position is provided with a sliding aid device to help the slide pipe slide up and down.

5. The large-diameter GRP pipe underwater installation and backfilling integrated construction equipment according to claim 1, characterized in that: The slide tube traction rope is a steel wire rope.

6. The large-diameter GRP pipe underwater installation and backfilling integrated construction equipment according to claim 1, characterized in that: The slide pipe winch is in the form of a hoist, which can control the retraction and extension of the slide pipe traction rope. In the shutdown state, the slide pipe can be retracted to the ship's side for fixation.

7. The use of the large-diameter GRP pipe underwater installation and backfilling integrated construction equipment according to claim 1, characterized in that: The following steps are involved: (1) Pipeline hoisting: After arriving at the scheduled construction sea area, first tighten and fix the GRP pipe to the bottom of the pipe hanging beam with a sling, and then use a crane to hoist the entire hanger together with the pipe to the seabed within the allowable range of positioning error according to the GPS positioning signal; (2) Pipeline adjustment: Through underwater command by divers and precise positioning by GPS of the measuring tower, the horizontal adjustment cylinder is used to adjust the pipeline hanging beam to control the horizontal deviation of the pipeline, and the vertical cylinder is used to adjust the height of the four legs of the hanger to accurately dock the pipeline to be installed with the installed pipeline. After the pipelines are docked, the console determines whether fine-tuning is required based on the actual position information of the pipelines fed back. If necessary, the console remotely operates the vertical cylinder and the horizontal adjustment cylinder to fine-tune the non-docking end of the pipeline, and at the same time stores the position information of the end for use when docking the next pipeline. (3) Gravel backfill: After the pipeline is installed, the operator operates the slide winch, lowers the slide and adjusts the traction rope, so that the slide is gradually lowered to the hopper position. The operator transports the gravel into the hopper. Under the action of its own weight, the gravel falls above the target through the slide. The operator controls the travel drive system to make the entire stone lowering system move on the track and freely lower the stone according to requirements. The trolley travel mechanism moves on the main beam by itself through the hinge, and the upper slide pipe moves together with the lower backfill through the trolley, and the crushed stone is backfilled to the predetermined position through the stone spout through the spout cylinder; (4) Folding up the slide pipe and lifting it off the hanger: After the construction is completed, the operator controls the slide pipe winch to tighten the slide pipe adjustment traction rope, lift the slide pipe, and fix it on the side of the ship. Then, remove the sling on the pipe and lift it off the pipe installation system.

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