Construction method of separable fulcrum pile

Abstract

The invention discloses a construction method of a separable fulcrum pile. The separable fulcrum pile is formed by adopting a drilled pile construction process and comprises a pile body positioned atthe lower part and a pile head positioned at the upper part of the pile body, wherein four steel rails are arranged at the upper end part of the pile body; the lower ends of the steel rails are embedded in the pile body; the upper ends of the steel rails extend into the pile head; and PVC (polyvinyl chloride) sleeves are sleeved outside the steel rails positioned in the pile head. The constructionmethod comprises the following specific construction steps of: (1) preparing for construction; (2) embedding a pile casing; (3) placing a drilling machine in place and drilling; (4) cleaning a hole for the first time; (5) manufacturing and installing a reinforcement cage, wherein the reinforcement cage is formed by manufacturing, hoisting and welding in sections; the embedded steel rails are fixed at the designed elevation positions on the reinforcement cage, and the PVC sleeves are sleeved outside the parts of the steel rails, which extend into the pile head, and are hoisted into the drilledhole together with the reinforcement cage; (6) installing a guide pipe and cleaning the hole for the second time; (7) pouring underwater concrete; and (8) naturally curing the pile body after pile forming.

Description

technical field [0001] The invention relates to a construction method of a fulcrum pile, belonging to the technical field of building construction. Background technique [0002] With the rapid development of the transportation industry, the railway-related transitional project has increasingly become an important part of the construction of temporary facilities in the project. The application of temporary beam fulcrum piles is becoming more and more common, and the technology is becoming more and more mature. However, the particularity of the construction of the beam fulcrum piles determines that the temporary transitional structures encountered cannot be simply repeated. Different regions and different locations have different characteristics, and there are many actual on-site applications. However, in some special areas or projects, the efficiency is very low simply according to the conventional construction technology of convenient beam fulcrum piles. For example, it is u...

AI Technical Summary

Problems solved by technology

According to the original design plan, the part of the frame that is affected by the fulcrum pile of the construction line needs to be cast in two steps. However, the actual situation on the site requires the opening of the part that is affected by the fulcrum pile of the fulcrum pile in advance. The step-by-step cast-in-place frame has seriously affected the construction period.

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