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Double-pile-casing supporting and gravel reinforcing construction method for pile foundation penetrating through karst cave

A construction method and technology of double casing, which are applied in basic structure engineering, sheet pile wall, soil protection and other directions, can solve the problems of pile hole construction and low construction efficiency, and achieve increased stability, improved work efficiency, and reduced accumulation. Effect

Active Publication Date: 2022-04-08
山东省公路桥梁建设集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that after pouring concrete into the karst cave, the concrete needs to wait for a period of time to solidify. During this period, the construction personnel cannot continue to continue the construction of the pile holes, and there is a construction party to reinforce the pile holes. The defect of low construction efficiency when dealing with

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  • Double-pile-casing supporting and gravel reinforcing construction method for pile foundation penetrating through karst cave
  • Double-pile-casing supporting and gravel reinforcing construction method for pile foundation penetrating through karst cave
  • Double-pile-casing supporting and gravel reinforcing construction method for pile foundation penetrating through karst cave

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Embodiment Construction

[0039] The following is attached Figure 1-5 The application is described in further detail.

[0040] The embodiment of the present application discloses a construction method for double casing support and crushed stone reinforcement of a pile foundation passing through a karst cave.

[0041] refer to figure 1 A construction method for double-casing support and gravel reinforcement for crossing karst cave pile foundations includes the following steps: S1, take out the drill bit, and when the drill bit is drilling into the pile hole, if the steel wire rope on the drill bit is deflected, it means that When the drill bit drills to the position where the karst cave is located, the drill bit should be stopped immediately to continue drilling, and then the drill bit should be taken out from the pile hole.

[0042] S2, filling gravel, placing the material guide device into the casing 100 located in the pile hole, and then filling the casing 100 with gravel, the gravel moves through t...

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Abstract

The invention relates to the technical field of constructional engineering and discloses a karst cave penetrating pile foundation double-pile-casing supporting and gravel reinforcing construction method. The method comprises the following steps that S1, a drill bit is taken out; s2, filling broken stones; and S3, drilling continues, the situation that concrete is poured into the karst cave can be reduced by filling the karst cave with gravels, and therefore the situation that a construction side needs to wait for concrete solidification to continue drilling the pile hole is reduced, and the working efficiency of the construction side during karst cave reinforcement is improved.

Description

technical field [0001] The present application relates to the technical field of construction engineering, in particular to a construction method for double-casing support of a pile foundation passing through a karst cave, and gravel reinforcement. Background technique [0002] The Yellow River Bridge is located in the karst area. The starting point is located in the east of Nanfangsi Village, Maji Town, Qihe County, Dezhou City, and the end point is located in the east of Gaozhuang Village, Xiaoli Town, Changqing District, Jinan City. The route crosses the Yellow River from northwest to southeast. When the pile foundation hole construction of the Yellow River Super Bridge is carried out, the pile holes will pass through the karst cave; when the drill bit passes through the karst cave, the drill bit is easily deflected at the position of the karst cave, and then the construction party needs to strengthen the karst cave. [0003] In the related art, when the karst cave is rei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38E02D3/08E02D15/00E02D5/66
CPCY02E10/20
Inventor 王志超孙德林荣杰闫宁邵坤厚傅苓王晓声陈允禄赵宁
Owner 山东省公路桥梁建设集团有限公司
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