Underground hole-forming device of hydraulic grab bucket

Abstract

The invention discloses an underground hole-forming device of a hydraulic grab bucket. The device is characterized in that a wire rope pulley is arranged above a top support plate; a hydraulic jack and a hydraulic breaking hammer are arranged below the top support plate; a grab bucket is arranged below the hydraulic breaking hammer; and a tool bit is arranged on a hydraulic crushing bit. With thehelp of hydraulic power on the ground and lifting equipment, the aim of crushing and lifting subsurface soil, sand, rock and other underground objects is achieved. Underground rock layers are crushedby using strong impact of the hydraulic breaking hammer and materials are grabbed by using strong power of the hydraulic jack. The problem that rotary digging machines and other grab bucket hole-forming machines difficultly enter rocks or cannot enter rocks is solved. An underground hole-forming device of the hydraulic grab bucket, which has the advantages of high mechanization degree, low manufacturing cost, high efficiency, strong adaptability, less sludge treatment capacity, and safety and reliability, is realized.

Description

technical field [0001] The invention relates to a hole-forming device for building pile foundation construction, in particular to an underground hole-forming device which impacts with a hydraulic breaker and grabs sludge with a hydraulic grab bucket. Background technique [0002] In the design and construction of domestic and foreign construction projects, most of the foundation treatment adopts cast-in-situ pile foundation, such as: the foundation of high-rise buildings, bridges, ports, and large-scale equipment. With the increase of building requirements for foundation load, designers have designed a variety of pile types according to geological conditions. Low-socketed piles of end-bearing piles are a good way to increase the load of single piles and reduce foundation sinking. In order to ensure the quality of cast-in-situ piles, not only the pile body can meet the strength requirements, but also the integrity of the pile body is required. In the construction of cast-in-...

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Problems solved by technology

[0003] The present invention is based on the above-mentioned existing underground pore-forming methods. In actual pore-forming, especially when encountering hard soil or rock formations, some have potential safety hazards, slow construction progress, some have unreasonable structures and poor adaptability, and some have sludge treatment To solve the problems of large quantity, huge equipment, low efficiency, etc., provide a hydraulic grab underground hole-forming device with high mechanization, low cost, high efficiency, strong adaptability, less sludge treatment, and safety.

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