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Construction method of pile foundation in water

A construction method and technology for pile foundations, which are applied in foundation structure engineering, sheet pile walls, buildings, etc., can solve problems such as position deviation of steel casing, sand gushing or slurry leakage in holes, and inability to ensure smooth hole formation of pile foundations.

Inactive Publication Date: 2019-11-19
MCC COMM CONSTR GRP CO LTD
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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a construction method for pile foundations in water, so as to solve the problems of steel casing position deviation, sand inrush or leakage in holes during the construction of pile foundation steel casings in hard river beds. In the case of slurry, it is impossible to guarantee the smooth hole formation of the pile foundation

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  • Construction method of pile foundation in water
  • Construction method of pile foundation in water
  • Construction method of pile foundation in water

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Embodiment Construction

[0036] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0037] In order to solve the problems of mud leakage, hole collapse and drill sticking in the punching process of the existing pile foundation, it can also improve the construction efficiency, shorten the construction period and reduce the construction cost. The invention provides an improved underwater pile foundation construction method to improve pile foundation construction efficiency, shorten construction period and reduce construction cost.

[0038] In order to describe in detail the flow of the underwater pile foundation construction method of the pre...

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Abstract

The invention provides a construction method of a pile foundation in water. The construction method comprises the steps that a pile-driving machine is positioned, and guiding hole drilling is conducted on a riverbed through the positioned pile-driving machine; after a guiding hole is formed, a pile foundation steel protection cylinder is lowered into the guiding hole till the bottom of the pile foundation steel protection cylinder abuts against the bottom of the guiding hole; bottom sealing concrete is poured into the pile foundation steel protection cylinder, and the depth range of the bottomsealing concrete is 2.5-3 m; after the bottom sealing concrete is initially set, pile foundation punching hole drilling is conducted; after a punching hole is formed, a steel reinforcement cage is hoisted into the punching hole; and underwater concrete is poured into the steel reinforcement cage, and a pile foundation is formed. Through the construction method, pile foundation steel protection cylinder construction in the hard riverbed can be achieved, the construction quality of the pile foundation is improved, safety and high efficiency are achieved, and the cost is saved.

Description

technical field [0001] The invention relates to the technical field of building construction, and more specifically, relates to a method for constructing pile foundations in water on a hard river bed. Background technique [0002] With the continuous improvement of Chinese bridge theory, the number of bridges built across waters is increasing day by day. During the construction of such bridges, it is often encountered that the covering layer on the river bed is washed away by the river water, resulting in the exposed rock surface of the river bed without covering layer. Among the existing solutions, the casing is mainly used to assist the pile foundation construction. The casing can not only fix the pile position and guide the drilling direction, but also isolate the surface water from entering the well hole, prevent the hole from collapsing, and ensure a high mud water level in the hole A certain height above the groundwater level or construction water level forms hydrosta...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/12E02D27/52E02D5/38E02D15/04
CPCE02D5/38E02D15/04E02D27/12
Inventor 侯小龙唐灶荣冷铁松肖剑
Owner MCC COMM CONSTR GRP CO LTD
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