Dropping method for large-tonnage steel liner of drilled pile

A technology of steel casing and large tonnage, applied in sheet pile wall, construction, infrastructure engineering, etc., can solve the problems of huge equipment and input materials, etc., and achieve the effect of light structure, easy operation, safe and reliable decentralization.

Active Publication Date: 2009-06-03
1ST ENG OF CHINA ZHONGTIE MAJORBRIDGE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The required equipment is huge,

Method used

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  • Dropping method for large-tonnage steel liner of drilled pile
  • Dropping method for large-tonnage steel liner of drilled pile
  • Dropping method for large-tonnage steel liner of drilled pile

Examples

Experimental program
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Embodiment Construction

[0019] Depend on figure 1 , figure 2 and image 3 In the shown method for lowering the large-tonnage steel casing of bored piles, a steel casing lowering support 2 is provided on the construction drilling platform 1, and an upper support system, a movable frame beam 13 and The lower support system, the movable frame beam 13 is flexibly connected with the lower support 2 through the vertical and horizontal movement jack 9, and the upper and lower support systems have the same structure, which are respectively surrounded by four distribution beams 31, 32, 33, 34 and 41, 42, 43, 44, both ends of the distribution beams 41, 42, 43, 44 are movably connected with the lowering support 2, and both ends of the distribution beams 31, 32, 33, 34 are movably connected with the movable frame beam 13, Then the steel hoop 10 with two steel hoop lugs 11 is fixed on the upper positions of all steel casings 5,6, and the outer rings of steel casings 5,6 above the steel hoop 10 are installed wi...

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Abstract

The invention discloses a dropping method for large-tonnage steel liner of drilled pile. Being characterized in that a steel shield lower bracket is provided on the drilling platform; the lower bracket is provided with upper and lower supporting system; the upper supporting system is installed with a hanging lower lifting hack; the hanging lower lifting hack is connected to the steel shield lower bracket via the lower hanging bar; then the steel shield lower bracket is continuously hanged and gradually connected to the steel shield, circularly lowering. The invention is a new technology for large-tonnage steel liner of drilled pile. The advantages of the invention are following: 1, light and convenient lowering bracket structure; 2, equipment and materials used in the preparations are easy; 3, decentralization and devolution of hanging bars jack decentralization safe and reliable; 4, steel casing the overall decentralization process is simple and easy to operate; 5, shear reinforcement to prevent the sliding steel hoop decentralization and delegation of more safe and reliable; 6, movable box beam through the telescopic jack can be moved vertically and horizontally to precisely align the delegation of the location of steel casing.

Description

technical field [0001] The invention relates to a construction technology used for a bored pile steel casing that enlarges the tonnage up and down a construction platform. Background technique [0002] In the method of lowering the large-tonnage steel casing of bored piles, in the construction process of the existing construction platform bored piles, a large-tonnage floating crane or a large-tonnage bar assembly gantry crane is usually used to lower the steel casing. Its required equipment is huge, and input material is more. Contents of the invention [0003] The purpose of the present invention is to provide a new technique for lowering the steel casing of bored piles. [0004] In order to achieve the above object, the present invention adopts the following technical scheme: a method for lowering the large-tonnage steel casing of bored piles. Firstly, a steel casing lowering bracket is set on the construction drilling platform, and upper and lower layers of support are...

Claims

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Application Information

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IPC IPC(8): E02D7/00
Inventor 冯广胜李艳哲樊俊惠赵发亮马晓东
Owner 1ST ENG OF CHINA ZHONGTIE MAJORBRIDGE GROUP
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