Construction method of trestle steel pipe pile foundation

A construction method and technology of steel pipe piles are applied in the construction of trestle steel pipe pile foundations and in the field of anchoring construction of trestle steel pipe pile foundations to achieve the effect of ensuring stability and structural safety.

Inactive Publication Date: 2012-01-11
CHINA MAJOR BRIDGE ENG +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem of how to carry out the anchoring constructio...

Method used

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  • Construction method of trestle steel pipe pile foundation
  • Construction method of trestle steel pipe pile foundation
  • Construction method of trestle steel pipe pile foundation

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Embodiment Construction

[0021] The invention provides a construction method for the steel pipe pile foundation of trestle bridge. The construction method of "bored pile + steel pipe pile" can effectively resist the effects of water flow, wind wave and wind load, ensure the stability and structural safety of the trestle bridge, and ensure The steel pipe pile foundation construction of trestle bridge with sloped rock face smooth slate and shallow overburden meets the requirements.

[0022] The present invention will be described in detail below in conjunction with specific implementation methods and accompanying drawings. This specific implementation mode takes the river bed construction on an inclined bare rock face as an example.

[0023] Construction method provided by the invention comprises the following steps:

[0024] A10, such as image 3 , Figure 4 As shown, after using the anchorage system 4 to accurately position the floating guide drilling platform, each trestle steel pipe pile is dropp...

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Abstract

The invention discloses a construction method of a trestle steel pipe pile foundation. The construction method is used for performing anchoring construction for the trestle steel pipe pile foundation on a slope bare rock surface and a shallow covered slope rock surface of the river, lake or ocean. The construction method comprises the following steps: A10) after utilizing an anchoring system to accurately position a floating pilot hole platform, respectively guiding each trestle steel pipe pile to fall onto a river bed rock surface but not perform a rock anchoring, through each reserved hole position on the floating pilot hole platform; A20) after impacting a hole to a designed depth on a foundational bed rock surface in the trestle steel pipe pile by using an impacting drill with the diameter less than the inner diameter of the trestle steel pipe pile, vibrating the trestle steel pipe pile so as to guide the trestle steel pipe pile to sink to the bottom of the hole, pouring reinforced concrete and firmly connecting the trestle steel pipe pile to the foundational rock; and A30) welding a trestle steel pipe pile connecting system, thereby finishing the construction for the trestle steel pipe pile foundation. According to the construction method, the operation of drilling the pile and steel pipe pile is adopted for construction, thereby efficiently resisting the influences of water flow, wind wave and air load and ensuring the stability and structural safety of the trestle.

Description

technical field [0001] The invention relates to a bridge construction method, in particular to a construction method for trestle steel pipe pile foundations, which is used for anchoring construction of trestle steel pipe pile foundations on inclined bare rock surfaces or shallow covering layer inclined rock surfaces on rivers, lakes or oceans. Background technique [0002] With the development of society, there are more and more bridge construction projects. In the past, trestle bridges were generally built on rivers and lakes with relatively thick covering layers. Under such geological conditions, the foundation construction of trestle bridges leading to the main project is generally carried out using the traditional "fishing method". However, there are many rivers, lakes and marine geological conditions that are inclined bare rock surfaces and shallow overburden layers. If the traditional method is used for construction, due to the action and influence of water flow, wind ...

Claims

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Application Information

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IPC IPC(8): E02D27/12E02D27/52
Inventor 金红岩彭建萍范万祥官军陈长柏金源晶朱祥炬叶绍其赵则锋王湘桥
Owner CHINA MAJOR BRIDGE ENG
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