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Crushed stone pile construction method, crushed stone pile construction jig, and crushed stone pile construction system
Crushed stone pile construction method, crushed stone pile construction jig, and crushed stone pile construction system
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机译:碎石桩的施工方法,碎石桩的施工夹具及碎石桩的施工系统
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摘要
PROBLEM TO BE SOLVED: To provide a construction method of a crushed stone pile for preventing the inflow of sediment to the inside of a casing pipe, and capable of surely opening the tip of the casing pipe.SOLUTION: A construction method of a crushed stone pile comprises a first process of penetrating a casing pipe 2 for providing a diametrical expansion part 5 on the tip into the ground in a state of separably storing a cover member 10 in the diametrical expansion part 5, a second process of pulling back the casing pipe 2 from underground and separating the cover member 10 from the diametrical expansion part 5, a third process of inputting a crushed stone G into the casing pipe 2 from aboveground and a fourth process of push-hardening the crushed stone G in the ground by repeating intrusion and pull-back of the casing pipe 2.SELECTED DRAWING: Figure 2
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