A middle digging pile sinking device for large-diameter pipe piles

Abstract

The invention discloses an intermediate digging and sinking device for a large-diameter pipe pile, which comprises an auger drill rod, a pipe pile, a soil storage box and a power head. The pipe pile is a cylinder with a circular through hole in the middle, and the lower part of the pipe pile The two sides of the top are set in the shape of sharp knives, the auger rod is inserted into the pipe pile, the upper end of the auger rod is connected to the power head, and the lower end is connected to a reverse-wing expansion bit, and the upper end of the pipe pile is provided with the above-mentioned soil storage box. An intermediate support is inserted into the connection between the pile and the soil storage box, and the intermediate support is fixed with the column of the external power equipment to stabilize the pipe pile. A certain part of the lower part of the pipe pile is provided with a lower support. The column of the equipment is fixed to stabilize the pipe pile. The power head is connected with the wire rope on the rotating wheel of the external power equipment. The invention has the advantages of stability, safety, low cost, high benefit, no pollution, no noise, no soil extrusion, environmental protection and the like.

Description

technical field [0001] The invention relates to a pile sinking device, in particular to a pile sinking device for middle excavation of large diameter pipe piles. Used in the field of building construction. technical background [0002] At present, there are relatively few large-diameter pipe piles on the market, and there are none in urban areas. Generally, one drilling rig is used to dig the soil, and then removed, and then another pile driver is used to sink the pile. According to the geological conditions in some places, the upper part is basically The silty soil can't make or break holes. In addition, it is easy to deviate, and the verticality is also difficult to control, which is time-consuming and labor-intensive, and may even affect safety. At the same time, a large hammer piling machine is used to drive the piles. This kind of mechanical construction has a lot of noise, thick smoke, large vibration, and severe soil compaction, which has a particularly large impact...

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