Underwater consolidation pile and construction method thereof

Abstract

The invention relates to an underwater consolidation pile and a construction method thereof. The underwater consolidation pile comprises a pile body, a piston push plate, a first curing material, a second curing material, an isolation part, a mixing part and a jetting part. In some embodiments, the pile body is composed of a columnar body and a conical body; the jetting part communicating with theinterior of the pile body is arranged on the outer wall of the pile body; the interior of the columnar body of the pile body is divided into two storage chambers through a partition plate and a piston push plate, and the two storage chambers are filled with the first curing material and the second curing material correspondingly; and the piston push plate is arranged in the pile body, the curingmaterials are squeezed out of the pile body by the piston push plate to seep into soil bodies around the pile and to form barb protrusion structures, and thus the pile uplift resistance and pile end bearing capacity are improved to a great extent. According to the underwater consolidation pile, pile bodies in different lengths can be made according to different site condition limitations to adaptto foundations of various soil bodies, the application range is wide, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of underwater pile foundations, in particular to an underwater consolidation pile and a construction method thereof. Background technique [0002] The construction of the pile foundation in the underwater area is more difficult than on land, and the stability of the pile foundation is greatly reduced due to the high water content of the soil under the water. At the same time, in order to achieve reliable stability, the existing underwater pile foundation often requires a long construction time and cannot complete the work quickly. At the same time, the bearing capacity of the pile foundation caused by construction is insufficient or the settlement of the pile foundation is too large, which makes the pile foundation structure in an unsafe state, such as insufficient verticality of the pile foundation during construction or insufficient negative friction due to excessive disturbance of the pile side soil , ca...

AI Technical Summary

Problems solved by technology

Its main shortcomings are: 1) The grouting permeability is not high, and the main bearing capacity of pouring the newly-added platform concrete is still the vertical friction force, and the actual tensile load is limited

2) The construction is difficult, and it is even more difficult when applied to underwater pile construction

Its main disadvantage is that the tensile load exerted by the side friction resistance of the special-shaped section is limited, and the special-shaped section alone cannot provide better bearing capacity.

Its main shortcomings are: 1) Spraying curing agent under high pressure can easily damage the surrounding soil, so that the formed structure cannot be better combined with the surrounding soil

2) Repeated rotation and meridional movement are required during construction, which makes construction difficult, and it is even more difficult when applied to underwater pile construction

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