Underwater soil positioning and excavating device suitable for non-water-stop repairing of large water conveyance canal

Abstract

The invention discloses an underwater soil positioning and excavating device suitable for non-water-stop repairing of a large water conveyance canal. The device comprises a door type steel truss, andthe door type steel truss is composed of two vertical trusses arranged in a spaced manner in the axial direction of the canal, and a top truss fixedly connected between the two vertical trusses; a truss beam is arranged between the two vertical trusses, the two ends of the truss beam are in rolling fit with a corresponding rail through rollers, multiple sets of supporting hydraulic cylinders are arranged on the lower portions of the two ends of the two vertical trusses, universal walking wheels are arranged on the lower ends of piston rods of the supporting hydraulic cylinders, an excavating assembly is arranged below the truss beam, and is connected with a chain wheel on a canal shore through a chain, the excavating assembly is composed of a roller type excavating tool and a collection hopper, and the roller type excavating tool and the collection hopper are hinged to the truss beam through the hydraulic cylinders. The advantages of being high in excavating depth and precision are achieved, the problems that the underwater excavating boundary and depth are not prone to control, and the excavating efficiency is low are solved, meanwhile, the mounting efficiency is high, and the repeated use is achieved.

Description

technical field [0001] The invention relates to the field of repairing water delivery channels, in particular to an underwater soil positioning excavation device suitable for repairing large-scale water delivery channels without stopping water. Background technique [0002] After a certain period of operation of the water conveyance channel, the canal slope is often partially damaged, so the canal slope must be maintained (repaired). In order not to affect the normal water delivery capacity of the water delivery channel, the damaged canal slopes are usually repaired underwater, and the underwater repair mainly includes underwater soil excavation and backfilling. [0003] At present, in the process of mechanical underwater soil excavation on the canal slope, in order to ensure the accuracy of the excavation, divers generally need to check and confirm the excavation status after the underwater excavation stops and the water quality is clear, so as to control the excavation acc...

AI Technical Summary

Problems solved by technology

For the excavation of pebble soil with large pebble particle size, the hinged suction dredge pump is not suitable, and the long-arm backhoe excavation equipment is generally used for underwater excavation; however, the long-arm backhoe excavation equipment needs to be excavated on land. The platform is installed, and the effective excavation distance and self-weight of the long-arm backhoe are relatively large, which restricts its applicable range

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