High-efficiency in-tubular pile soil drilling, pile pressing, powder spraying and mortar spraying integrated machine and construction process thereof

Abstract

The invention discloses a high-efficiency in-tubular pile soil drilling, pile pressing, powder spraying and mortar spraying integrated machine and a construction process thereof. The high-efficiency in-tubular pile soil drilling, pile pressing, powder spraying and mortar spraying integrated machine comprises a static pile pressing machine, an upright post, a plurality of hollow drill rods and a plurality of tubular piles; the static pile pressing machine is provided with a static pile pressing machine base and a carrying table; a double-drum winch and a rear fixed pulley are mounted on the rear side of the bottom of the upright post; a front fixed pulley block is mounted on the front side of the bottom of the upright post; an upper fixed pulley block is arranged at the top of the upright post; the double-drum winch, the rear fixed pulley and the upper fixed pulley block are connected with the top of a power device through a first steel wire rope; connector screw threads are formed in the centre of the bottom of the power device; pressurizing movable pulley blocks are arranged on the two sides of the bottom of the power device; the double-drum winch is connected with the front fixed pulley block and the pressurizing movable pulley blocks through a second steel wire rope; connector screw threads are formed in the top and the bottom of each hollow drill rod; a drill tip is arranged at the bottom of each hollow drill rod, and a high-pressure powder injecting and mortar injecting pipe connector is arranged at the top of each hollow drill rod; the tubular piles are hung in a pile clamping mechanism. According to the high-efficiency in-tubular pile soil drilling, pile pressing, powder spraying and mortar spraying integrated machine and the construction process thereof, the function of multiple purposes in one machine is realized; the problems of pile cutting, hole guiding, low bearing capacity of a single pile and the like caused by the fact that the designed depth cannot be achieved because of geological reasons are solved; differential settlement of a building is avoided.

Description

technical field [0001] The invention relates to the field of building construction, in particular to an integrated machine for drilling soil, pile pressing, powder spraying and grout spraying in high-efficiency pipe piles and its construction technology. Background technique [0002] The static pressure pile driver is widely used in the construction of building foundations in my country. Because it uses the static pressure of the pressurized cylinder to directly press the concrete pipe pile into the ground vertically, it has the advantages of no vibration, no noise, and fast construction speed during the construction process. However, the geological conditions in the construction are not the same, often due to reasons such as thick geological sand layers and high density, the piles cannot reach the design elevation, or even the piles are cut off. In addition, factors such as high moisture content in muddy soil, low bearing capacity of a single pile, and large soil extrusion ...

AI Technical Summary

Problems solved by technology

However, the geological conditions in the construction are not the same, often due to reasons such as thick geological sand layers and high compactness, the piles cannot reach the design elevation, or even the piles are cut.

In addition, factors such as high moisture content in muddy soil, low single pile bearing capacity, and large soil extrusion effect in cohesive soil construction also seriously restrict the development prospects of static pressure pile machines.

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