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Layered pile foundation testing device and testing method adopting double-air-pressure film vertical loading

A technology of vertical loading and test equipment, which is applied in the test of basic structures, basic structure engineering, construction, etc., can solve the problems of not being able to control the characteristics of sample preparation in a targeted manner, and achieve the advantages of overcoming strain measurement errors, small volume, and high quality. light effect

Pending Publication Date: 2019-03-15
SHENZHEN HONGYEJI GEOTECHNICAL TECH CO LTD +2
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  • Abstract
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Problems solved by technology

Existing test technology cannot solve this problem very well. The existing model boxes for pile foundation tests are all designed as a complete model box, and cannot be controlled in a targeted manner in the process of foundation soil sample preparation. Sample preparation characteristics of layer soil (including compaction degree, moisture content, etc.)

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  • Layered pile foundation testing device and testing method adopting double-air-pressure film vertical loading
  • Layered pile foundation testing device and testing method adopting double-air-pressure film vertical loading
  • Layered pile foundation testing device and testing method adopting double-air-pressure film vertical loading

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Embodiment Construction

[0040] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0041] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0042] figure 1 It shows a schematic structural diagram of a layered pile foundation test device adopting dual air pressure membranes for vertical loading according to a preferred embodiment of the present invention.

[0043] Such as figure 1 Shown is a layered pile foundation test device using dual air pressure membranes for vertical loading, including: a model box, a test pile testing device, a dual air pressure membran...

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Abstract

The invention provides a layered pile foundation testing device and a testing method adopting a double-pneumatic-film vertical loading. The device comprises a model box, a test pile testing device, adouble-air-pressure film loading device, wherein the model box is composed of at least one layered model box and a model box bottom; the test pile testing device is arranged in the model box, the testpile testing device is composed of test piles and detection sensing devices arranged on the inner side and the outer side of the test piles; and the double-air-pressure film loading device is arranged above the test pile testing device, is used for carrying out load loading on the test piles. According to the layered pile foundation test device, a layered model box to assemble an integral model box is adopted, the compaction degree, the moisture content and the like of the soil layers with different depths can be prepared according to requirements, meanwhile, the test pile testing device utilizes the characteristics of light weight, small size, high sensitivity, electromagnetic interference resistance and the like of a fiber grating sensor so as to obtain a real-time and comprehensive pile foundation stress deformation rule, and the pile foundation design and construction are scientifically guided.

Description

technical field [0001] The invention relates to the technical field of pile foundation testing, in particular to a layered pile foundation testing device and a testing method using double air pressure membranes for vertical loading. Background technique [0002] The vertical bearing capacity test of piles is extremely important for controlling the settlement of buildings and ensuring the safety of building structures. [0003] The more commonly used pile vertical load test test technology is more traditional. The loading is carried out through the construction of reaction piles or the surcharge of the upper gravity test block. No matter the construction of the reaction pile or the hoisting of the gravity test block, heavy machinery is required. Carrying out construction takes up a large construction site space and requires a long time for preparations. At the same time, the completed reaction piles are discarded after the experiment, which is a waste of economy and resource...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 陈枝东陆钊张领帅陈敏华陈锐苏栋
Owner SHENZHEN HONGYEJI GEOTECHNICAL TECH CO LTD
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