Device for drilling rock and embedding rock-socketed prestressed pipe pile by down-hole hammer and construction method of device

Abstract

The invention relates to a device for drilling rock and embedding a rock-socketed prestressed pipe pile by a down-hole hammer and a construction method of the device and aims to solve the problem that existing similar product structures and construction methods are poor. The device comprises a crawler-type pile driver, a casing pipe, an upper power head, a lower power head, a long spiral drill bar, the down-hole hammer, a rock drilling bit, an oil atomizer, an air compressor, an air duct and the like. The device is characterized in that the down-hole hammer is a pneumatic down-hole hammer, high-pressure blast generated by the air compressor sequentially passes through the air duct, the oil atomizer, the air duct and the upper power head and then passes through an air channel of inner holes of the long spiral drill bar to reach to the down-hole hammer, the casing pipe is driven by the lower power head to rotate anticlockwise to be pre-buried in a clay stratum, a gravel layer and a rock stratum, then the pipe pile is placed in the casing pipe, the pipe pile is embedded into the rock stratum, the casing pipe can be slowly pulled out by the crawler-type pile driver, a drop hammer is used for hammering a pile cap or a pile follower of the pipe pile till the pipe pile is fixed in a drill hole, and the pipe pile is organically combined with a rock surface of the rock stratum at the hole bottom. The device is applied to the construction of the rock-socketed prestressed pipe pile.

Description

technical field [0001] The invention relates to a dry pile driver and a construction method thereof, and relates to a down-the-hole hammer rock-drilling device for implanting rock-socketed prestressed pipe piles and a construction method thereof. technical background [0002] Pile drivers are generally construction equipment consisting of pile hammers, pile frames and ancillary equipment, which are mainly used for the grassroots construction needs of high-rise buildings. The pile hammer is generally attached between two parallel vertical guide rods at the front of the pile frame. The guide frame composed of the two guide rods is used to control the direction of piling, so that the pile can accurately penetrate into the ground according to the design orientation, and at the same time use the lifting hook to Hoist. Among them, the pile frame is generally a steel structure tower frame, and a hoist is provided at its rear to lift the pile and the pile hammer. Some existing pil...

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Problems solved by technology

[0003] In order to overcome the above-mentioned deficiencies, the purpose of the present invention is to provide a kind of down-the-hole hammer rock-drilling implanted rock-socketed prestressed pipe pile equipment and its construction method in the field, so that it can solve the problem of existing similar piling machine structure design and pile planting construction method. , The technical problem of poor effect of rock-socketed pile planting

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