Bank protection block stone wall body damage repair construction method

Abstract

The invention relates to a revetment block stone wall body damage repair construction method which comprises the following steps: firstly, determining field working conditions, and mainly determining the coping size of a revetment wall body and the position of a damage cavity; then, a channel safety protection construction platform is built at the lowest construction position through manual lifting ropes; then the worker goes down to the channel safety protection construction platform through the crawling ladder for construction; after construction is completed, the channel safety protection construction platform is moved to the next construction height to continue construction till construction of the vertical face is completed; and the construction section is transversely moved, and the work is repeated till the whole bank protection block stone wall body damage repairing construction is completed. The channel safety protection construction platform is common in material, simple in structure, easy to manufacture, low in cost, high in assembly degree, convenient to mount and demount and convenient to use, overwater construction is changed into land near-water construction, the equipment and labor cost is reduced, local moving type construction efficiency is high, and repairing operation is accurate.

Description

Technical Field

[0001] The invention relates to the field of water conservancy projects, and in particular to a construction method for repairing damaged revetment block stone walls. Background Art

[0002] For mortar-laid block stone revetments, how to complete the revetment repair quickly, at low cost, and with guaranteed quality and quantity has become an engineering problem. Quality and cost are contradictory items. To reduce costs, builders generally choose local repairs. However, repairing the concrete mortar texture of the voids on the side of the block stone wall is the most difficult of all repairs.

[0003] The difficulty in repairing the side of the stone wall is that there is no suitable working platform. In the past, there were two common methods of setting up working platforms. One is to build a scaffolding platform on the outside of the revetment. This method is because the water outside the revetment is not deep and requires the assistance of a transport ship; the other is to use a transport ship directly for operations, but the operating range is limited to the range that people on the boat can reach. Both methods have greater working condition restrictions and require transport ships. The implementation cost is high, and the construction cost and construction time are difficult to control. Summary of the invention

[0004] The purpose of the present invention is to provide a construction method for repairing damaged revetment stone walls for quickly building a small and convenient passage safety protection construction platform, aiming to solve the problem that the repair of damaged revetment stone walls requires the use of a complex construction platform for construction.

[0005] The technical solution adopted by the present invention is: a construction method for repairing damaged block stone walls of bank protection, comprising the following steps: S1. Making a main frame, using channel steel to cut and weld two main frames, the main frame including an upper hook frame, the lower and middle parts of the main frame are vertical frames, the frame is connected to the upper hook frame through a miter frame made of channel steel, and then a trapezoidal steel support plate is welded on the inside of the frame, and prefabricated screw holes are opened every half meter on the frame; S2. Making a fixed triangular brace, using channel steel to weld a triangular diagonal brace on the outside of the frame below the prefabricated screw hole, and horizontally welding a horizontal steel plate above the diagonal brace to complete the production of the fixed triangular brace; S3. Making a movable cross brace, using channel steel to fix on the transverse steel plate of the triangular brace to make a horizontal cross brace, the length of the horizontal cross brace is ≥90cm, and a through hole is drilled at the inner end of the horizontal cross brace at the prefabricated screw hole to complete the production of the fixed triangular brace. Production of movable cross braces; S4. Production of pin shafts: Use bolts with pin holes drilled in the middle of the screw rod as pin shafts to connect the movable cross braces to the main frame, and insert the pins into the pin holes to fix them; S5. Production of a channel safety protection construction platform, use channel steel and steel plates to make shaped channel plates on the same row of movable cross braces, vertically weld steel pipe sleeves on the outside of the shaped channel plates as guardrail fixing sockets, and the guardrails are made of steel pipes that match the steel pipe sleeves to form lattice guardrails with pins, and the pins are inserted into the sockets to form a channel safety protection construction platform; S6. Repair the damaged block stone wall of the revetment, move the channel safety protection construction platform from bottom to top in sequence, repair the damaged block stone wall of the revetment on the channel safety protection construction platform, and then repeat the operation from left to right until the entire revetment block stone wall damage repair operation is completed.

[0006] A further technical solution of the present invention is that the hook frame is made into a square hook shape according to the size of the top of the wall.

[0007] A further technical solution of the present invention is: a vertical steel plate is welded on the outer side of the transverse steel plate as a movable transverse bracing guard plate.

[0008] A further technical solution of the present invention is: a vertical steel plate is welded to the outside of the horizontal cross brace as a platform guard plate.

[0009] A further technical solution of the present invention is that the main frame, fixed triangular brace, movable cross brace, pin shaft and guardrail are independent prefabricated parts, which are welded, fixed and assembled for use during construction.

[0010] The beneficial effects of the present invention are as follows: due to the adoption of the above technical scheme, the following beneficial effects are achieved: 1. The channel safety protection construction platform is made of ordinary materials, has a simple structure, is easy to manufacture, and has low cost; 2. The channel safety protection construction platform has a high degree of assembly, is easy to install and disassemble, and is convenient to use; 3. The channel safety protection construction platform replaces the water-based vessels and work platforms, and changes the water construction to land-based waterside construction, which simplifies the construction measures, improves work efficiency, and reduces equipment and labor costs; 4. The repair construction of the damaged stone wall of the revetment changes the original overall construction after relying on transportation ships and the construction of the overall scaffolding, and innovates to quickly build a small and convenient channel safety protection construction platform for local mobile construction, which is efficient and accurate in repair operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front structural schematic diagram of the passage safety protection construction platform of the present invention;

[0012] Figure 2 It is a side structural schematic diagram of the channel safety protection construction platform described in the present invention. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] A method for repairing a damaged block stone wall of a revetment comprises the following steps: firstly determining the on-site working conditions, mainly determining the top size of the revetment wall and the position of damaged cavities; then manually hanging ropes are used to build a passage safety protection construction platform at the lowest construction location; then workers climb down to the passage safety protection construction platform via ladders to carry out construction; after the construction is completed, the passage safety protection construction platform is moved to the next construction height to continue construction until the vertical surface construction is completed; the construction section is moved horizontally, and the above work is repeated until the entire revetment block stone wall damage repair construction is completed.

[0015] like Figure 1 and 2The passage safety protection construction platform shown in the figure includes the following steps: S1. Making a main frame 1, using channel steel to cut and weld two main frames, the main frame including an upper hook frame 2, the hook frame is made into a square hook shape according to the shape of the top wall 6, so as to facilitate the main frame to be hooked on the top wall, the lower middle part of the main frame is a vertical frame body 3, the frame body is connected to the upper hook frame 2 through a miter frame 4 made of channel steel, and then a trapezoidal steel support plate 5 is welded inside the frame body, so that when the hook frame is hooked on the top wall, the steel support plate supports the frame body against the wall, and prefabricated screw holes are provided on the frame body every half meter; S2. Making a fixed triangular brace 7, using channel steel to weld a triangular diagonal brace 8 on the outer side of the frame body below the prefabricated screw hole, and horizontally welding a horizontal steel plate 9 above the diagonal brace as a supporting surface for a movable cross brace, and in order to prevent the movable cross brace from being offset by force, a vertical steel plate is welded on the outer side of the transverse steel plate as a movable cross brace guard plate 10 to prevent offset, so as to complete the fixed triangular brace. Support production; S3. Production of movable cross brace 11, horizontal cross brace 12 is made by fixing channel steel on the horizontal steel plate of the triangular support, the length of the horizontal cross brace is ≥90cm, and a steel plate is vertically welded on the outside as a platform guard to prevent the working platform from slipping, and a through hole is drilled at the inner end of the horizontal cross brace at the prefabricated screw hole for connection with the pin shaft 13. Two movable cross braces in the same row are selected according to the working height to be carried out; S4. Production of pin shaft: the bolt with the pin hole drilled in the middle of the screw rod is used as a pin shaft to connect the movable cross brace to the main frame, and the pin 14 is inserted into the pin hole to prevent the bolt from slipping; S5. Production of channel safety protection construction platform, on the movable cross brace in the same row, a fixed channel plate 15 is made of channel steel and steel plate, and a steel pipe sleeve 16 is vertically welded on the outside of the fixed channel plate as a guardrail fixing socket. The guardrail is made of a steel pipe matching the steel pipe sleeve to form a lattice guardrail 17 with a pin, and the pin is inserted into the socket to form a channel safety protection construction platform.

[0016] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for repairing damaged revetment stone walls, characterized in that: The steps include: S1. Make the main frame, use channel steel to cut and weld two main frames, the main frame includes a hook frame at the upper end, the lower part of the main frame is a vertical frame, the frame is connected to the hook frame at the upper end by a miter frame made of channel steel, and then a trapezoidal steel support plate is welded inside the frame, and prefabricated screw holes are opened every half meter on the frame; S2. Make a fixed triangular brace. Use channel steel to weld a triangular diagonal brace on the outside of the frame below the prefabricated screw hole, and weld a horizontal steel plate above the diagonal brace to complete the production of the fixed triangular brace. S3. Make movable horizontal braces. Use channel steel to fix the horizontal steel plate of the triangular brace to make horizontal horizontal braces. The length of the horizontal horizontal brace should be ≥ 90 cm. Drill through holes at the inner end of the horizontal horizontal brace at the prefabricated screw holes to complete the production of movable horizontal braces. S4. Make the pin: Use a bolt with a pin hole drilled in the middle of the screw as a pin to connect the movable cross brace to the main frame, and insert a pin into the pin hole to fix it; S5. Make a channel safety protection construction platform. Use channel steel and steel plates on the same row of movable cross braces to make a shaped channel plate. Vertically weld steel pipe sleeves on the outside of the shaped channel plate as guardrail fixing sockets. The guardrail is made of steel pipes matching the steel pipe sleeves to form a lattice guardrail with pins. Insert the pins into the sockets to form a channel safety protection construction platform; S6. Carry out the repair work on the damaged stone wall of the bank protection. Move the channel safety protection construction platform from bottom to top in sequence, carry out the repair work on the damaged stone wall of the bank protection on the channel safety protection construction platform, and then repeat the operation from left to right until the entire damaged stone wall repair work is completed.

2. A method for repairing damaged revetment stone wall according to claim 1, characterized in that: The hook frame is made into a square hook shape according to the size of the top of the wall.

3. A method for repairing damaged revetment stone wall according to claim 1, characterized in that: The vertical steel plates are welded on the outer sides of the transverse steel plates as movable cross bracing guard plates.

4. A method for repairing damaged revetment stone wall according to claim 1, characterized in that: A vertical steel plate is welded to the outside of the horizontal cross brace as a platform guard plate.

5. A method for repairing damaged revetment stone wall according to claim 1, characterized in that: The main frame, fixed triangular brace, movable cross brace, pin shaft and guardrail are independent prefabricated parts, which are welded, fixed and assembled for use during construction.

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