Construction method of self-balancing method pile foundation bearing capacity test device

A technology of test device and construction method, which is applied in the test of foundation structure, foundation structure engineering, sheet pile wall, etc. It can solve the problems of too thick mud, floating of steel cage, long time for installing load box, etc., and achieve the integrity of pile foundation Good results

Inactive Publication Date: 2012-07-04
CHINA RAILWAY NO 5 ENG GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method of a self-balancing pile foundation bearing capacity test device to solve the problems in the prior art such as long

Method used

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  • Construction method of self-balancing method pile foundation bearing capacity test device
  • Construction method of self-balancing method pile foundation bearing capacity test device
  • Construction method of self-balancing method pile foundation bearing capacity test device

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Embodiment Construction

[0015] Embodiments of the present invention: the method includes the following processes: the first, construction preparation, including calculating the position of the balance point of the self-balancing method measuring pile according to requirements, determining the number of measuring piles, drilling, clearing the hole, and detecting the verticality of the hole; 2. Fabricate the load box and weld it with the steel cage; 3. Install the steel cage; 4. Clear the hole again; 5. Concrete pouring;

[0016] First, construction preparation.

[0017] (1) Calculate the position of the balance point of the piles measured by the self-balancing method according to the design and specification requirements, and determine the number of piles to be measured.

[0018] (2) Construct the pile foundation according to the design drawings to prevent partial and inclined holes; pay attention to the water head in the hole to prevent the hole from collapsing in reverse, and pay attention to cleari...

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Abstract

The invention discloses a construction method of a self-balancing method pile foundation bearing capacity test device, which is characterized by comprising the following processes of: 1, construction preparation: calculating a balance point position of self-balancing method pile measurement, determining the number of the pile measurement, drilling holes, cleaning the holes and detecting the verticality of the holes; 2, manufacturing a load box and welding the load box with a reinforcement cage; 3, mounting the reinforcement cage; 4, cleaning the holes again; 5, pouring concrete; and 6, carrying out self-balancing method detection. As the detection is directly carried out on engineering piles in some projects, in order to preventing the pile foundations from affecting the use, a grouting machine is used for filling gaps separated from pipelines and the load box with grout after the detection; therefore, the method also comprises the following process of: 7, carrying out pipeline grouting and reinforcement. According to the invention, the defects that the load box mounting time is long, the reinforcement cage floats upwards, the mud at the bottom of the load box is too thick, the pile foundations have gaps at the load box to influence the quality of the pile foundations, the construction progress is slow, and the like are overcome, and the pile foundations have good integrity.

Description

technical field [0001] The invention relates to a construction method of a self-balancing pile foundation bearing test device. Background technique [0002] At present, the common method of installing the self-balancing pile foundation bearing capacity test device is that it takes a long time to install the load box, and the steel cage is easy to float when pouring underwater concrete. Due to the influence of the concentration of the mud and the sedimentation speed, the mud at the bottom of the load box is too thick Especially when engineering piles are used for testing, the quality of the bridge is seriously affected and the construction progress is slow. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction method of a self-balancing pile foundation bearing capacity test device to solve the problems in the prior art such as long time for installing the load box, floating of the steel cage, too thick mu...

Claims

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Application Information

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IPC IPC(8): E02D33/00E02D5/34
Inventor 王勇吕茂丰胡爱珍
Owner CHINA RAILWAY NO 5 ENG GRP
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