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Anti-floating anchor rod pile test device and test method

An anti-floating anchor rod and test device technology, which is applied in the field of anchor piles, can solve the problems that the pull-out test characteristics of anti-floating anchor piles cannot be fully obtained, and are susceptible to electromagnetic interference, etc., and achieve strong environmental adaptability and anti-interference ability Strong, high data measurement accuracy effect

Pending Publication Date: 2021-01-08
中交投资南京有限公司
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Problems solved by technology

[0005] Purpose of the invention: the present invention discloses an anti-floating anchor pile test device and test method to overcome the disadvantages of being susceptible to electromagnetic interference and unable to fully obtain the pull-out test characteristics of the anti-floating anchor pile when using the traditional method in the prior art

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  • Anti-floating anchor rod pile test device and test method

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Embodiment

[0046] Such as Figure 1 to Figure 5As shown, the anti-floating anchor pile test device of the present invention includes an anti-floating anchor pile 1, a sensing component, a temperature and humidity sensing system 8, a data acquisition system, a data transmission system, a data processing and analysis system 10, and a monitoring result display system 11. Loading system and solar panel 23; specifically:

[0047] Sensing components include 0.9mm first strain sensing fiber 2, 2.0mm second strain sensing fiber 3, temperature sensing fiber 4; data acquisition system includes BOTDA data acquisition system 5, fiber grating data acquisition system 6 and DTS data acquisition System 7; the anti-floating anchor pile 1 is a cast-in-place anchor pile, and a hole is drilled on site by a piling machine, and then concrete is poured in the hole to form an anchor body 16, and then the anchor rod 15 is lowered into the grouted hole once , and then perform secondary grouting to finally form t...

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Abstract

The invention discloses an anti-floating anchor rod pile test device and test method. The test device comprises an anti-floating anchor rod pile, a sensing assembly, a temperature and humidity sensingsystem, a data acquisition system, a data transmission system, a data processing and analysis system, a monitoring result display system and a loading system, wherein the sensing assembly comprises afirst strain sensing optical fiber, a second strain sensing optical fiber and a temperature sensing optical fiber. According to the test device, a groove is formed in the anchor rod pile to arrange the first strain sensing optical fiber, the second strain sensing optical fiber and the temperature sensing optical fiber are arranged on the periphery of a reinforcing steel bar, a vertical load applying system is used for carrying out a pull-out test on the anti-floating anchor rod pile, a BOTDA data acquisition system, a fiber bragg grating data acquisition system and a DTS data acquisition system are utilized, and the strain and temperature information of a pile body of the anti-floating anchor rod pile is measured with high precision and is displayed in a monitoring result display system in a chart form. The test device has the advantages of being simple in construction wiring, high in data measurement precision, small in drifting and good in waterproofness.

Description

technical field [0001] The invention relates to anchor piles in the field of geotechnical engineering, in particular to an anti-floating anchor pile test device and test method. Background technique [0002] With the rapid advancement of the urbanization process, the development and utilization of underground space continues to develop in depth. This puts forward higher requirements on how to resist floating in underground engineering. In recent years, anti-floating anchor piles have been widely used in underground anti-floating measures of construction projects because of their unique performance. However, due to the complexity of rock and soil The denaturation makes the force situation of the anchor rod in the soil very complicated, and the calculation of the anchorage capacity of the anti-floating anchor pile is very difficult. [0003] At present, the traditional static pressure anchor pile pull-out test is often used in engineering to measure the anchor adhesion abilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00G01M13/00G01B11/16G01K11/32G01L1/24G01N3/08
CPCE02D33/00G01M13/00G01B11/16G01K11/32G01L1/242G01N3/08G01N2203/0075
Inventor 周怀明刘俊驰高磊陶兴伟
Owner 中交投资南京有限公司
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