Method for accurately implanting large-diameter pile casing into strong wave flow force inclined bare rock

Abstract

The invention creatively provides a method for accurately implanting a large-diameter pile casing into a strong wave flow force inclined bare rock. The method includes the following steps that the tool pile casing is machined, manufactured and installed in place; the tool pile casing is hoisted to the position of a corresponding pile foundation and placed in water until the seabed surface; the position of the tool pile casing is monitored and accurately adjusted; the tool pile casing is inserted and hit; after the tool pile casing enters a rock stratum by a certain depth, a cast-in-situ bored pile steel pile casing is implanted into a hole along the tool pile casing; the tool pile casing is pulled out; the hole is filled with installing guide pipe pouring high-diffusion self-flowing concrete, and then the bottom of the steel pile casing is fixedly connected with the rock stratum. Due to the fact that in the tool pile casing, steel pipe concrete pipes mainly serve as bearing force dowel steel pieces, the water facing and wind facing areas are reduced, impact of tides and wave force on the tool pile casing is reduced, it is guaranteed that the position of the tool pile casing is adjusted accurately, the influence of horizontal resistance on the pile casing can be reduced, the plane position of the large-diameter steel pile casing is effectively controlled, and the steel pile casing is accurately implanted into the rock stratum.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering construction, and in particular relates to a method for accurately implanting a large-diameter casing in inclined bare rock with strong wave flow force. Background technique [0002] When the bored piles of the cross-sea bridge are constructed under harsh sea environment conditions such as strong winds and waves, when the large-diameter and long steel casing is inserted under the impact of tides and waves, it is difficult to control the plane position. Difficult to precisely position the installation. Especially for granite with no overburden layer on the seabed surface, large sloping height difference on the exposed rock surface and high strength, it is difficult to drive the steel casing into the rock formation by using the commonly used construction method of piling barge. Contents of the invention [0003] The invention aims to solve the above problems, and provides a method for ...

AI Technical Summary

Problems solved by technology

[0002] When the bored piles of the cross-sea bridge are constructed under harsh sea environment conditions such as strong winds and waves, when the large-diameter and long steel casing is inserted under the impact of tides and waves, it is difficult to control the plane position. Difficult to precisely position and install

Especially for the granite with no covering layer on the seabed surface, large inclination height difference on the bare rock surface and high strength, it is difficult to drive the steel casing into the rock formation by using the commonly used construction method of piling barge.

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