Full sleeve large diameter vibration soil taking and filling pile construction method
A construction method and large-diameter technology, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of reducing pile bottom reaction force and side wall friction, reducing pile foundation bearing capacity, and high construction costs. Achieve the effects of increasing the ability to penetrate the foundation soil, reducing frictional resistance, and facilitating construction and operation
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[0030] Example 1: The construction method of the large-diameter vibratory soil borrowing cast-in-place pile with a full set of pipes of the present invention includes two processes: hole forming and concrete pouring. The hole forming process includes the inner and outer tube as the soil borrowing and hole forming facility, which is used as the inner casing 4 of the soil extractor. The gap between the outer tube 3 and the outer tube 3 is 5-15mm, and the inner and outer tubes are made of full-length steel casing; the outer tube 3 and the inner tube 4 are passed through the clamper 2 at medium and high frequency with large excitation force above 1000kN The vibrating hammer 1 sinks into the foundation soil; during the sinking of the inner casing 4 into the soil, water is injected into the soil through the water pipe installed on the inner wall of the inner casing to soften the soil and reduce the frictional resistance between the soil and the pipe wall , So that the sinking resistance...
Example Embodiment
[0040] Example 2: The construction method of the large-diameter vibratory soil-boring pile with full-pipe of the present invention includes two parts: hole forming and concrete pouring. The inner and outer tube are used as soil-boring facilities, and the inner casing 4 of the soil extractor is used in the hole-forming process. The gap between the outer tube 3 and the outer tube 3 is 5-15mm, and the inner and outer tubes are made of full-length steel casing; the outer tube 3 and the inner tube 4 are passed through the clamper 2 at medium and high frequency with large excitation force above 1000kN The vibrating hammer 1 sinks into the foundation soil under the action of the vibrating hammer; when the vibrating hammer vibrates, the vibrating hammer 1 is pressurized to increase the ability of the inner and outer tubes to penetrate the foundation soil; during the sinking of the inner casing 4, it is installed in the soil The water pipe on the inner wall of the inner casing injects wate...
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