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Level instrument and foundation pile static test system based on static force leveling and method of foundation pile static load

A technology of static load test and static level, which is applied in the test of basic structure, basic structure engineering, construction, etc. It can solve the problems of being affected by temperature changes, inconvenient storage management, large length and weight, etc., and achieves good stability. , easy measurement and long service life

Pending Publication Date: 2019-09-20
SHENZHEN BUILDING SAFETY & CONSTR QUALITY TESTING & APPRAISAL CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The section steel of this length is extremely inconvenient in use. Different lengths of benchmark beams should be selected for different pile foundation static load experiments. If the beam is partially bent or damaged during daily use, the reference beam can only be replaced as a whole, which is very uneconomical
Moreover, after the benchmark beam is lengthened, due to its insufficient rigidity, its deflection is also very significant due to the influence of temperature changes

Method used

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  • Level instrument and foundation pile static test system based on static force leveling and method of foundation pile static load
  • Level instrument and foundation pile static test system based on static force leveling and method of foundation pile static load
  • Level instrument and foundation pile static test system based on static force leveling and method of foundation pile static load

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Embodiment Construction

[0042] In order to fully understand the technical content of the present invention, the technical solutions of the present invention will be further introduced and illustrated below in conjunction with specific examples, but not limited thereto.

[0043] Such as Figure 2 to Figure 6 Drawings of embodiments of the invention.

[0044] A magnetostrictive static level 10, such as figure 2 As shown, it includes a liquid storage tank 11 for holding pressure-guiding antifreeze, an electronic warehouse 12 located at the upper end of the liquid storage tank 11, and a waveguide rod 13 that is connected to the electronic warehouse 12 at one end and extends into the liquid storage tank 11 at the other end. . The waveguide rod 13 is provided with a floating ball 14, and a magnetic ring (not marked in the figure) is provided in the floating ball 14 . A limiting block 15 is provided at the end of the waveguide rod 13 farther from the electronics compartment 12 .

[0045] The upper end of...

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Abstract

The invention relates to a level instrument and a foundation pile static test system based on static force leveling and a method of a foundation pile static load. A non-contact static level instrument is sampled, the service life is long, stability is good, and anti-interference is high. A datum beam, a datum pile, and a displacement meter are replaced with a measuring static force level instrument, and a datum static force level instrument, the installation difficulty in a traditional method is avoided, good adaptability to the environment is achieved, and normal work can be conducted without special requirements, According to the foundation pile static test system, the distance between a datum point and a measuring point of can be increased to tens of meters, and the effect of the measuring point on the datum point in the process of loading or unloading is excluded completely. According to a measuring method, interference is reduced, errors are reduced, accuracy is improved, measuring is convenient, and adaptability is strong, and the method is suitable for a tension and compression load resistance test of large diameter and tonnage piles, dealt with a load test of composite foundations with a large area, and dealt with a load test of natural foundations and artificial foundations with large areas.

Description

technical field [0001] The invention relates to a measuring device and method, more specifically to a measuring system and a measuring method for eliminating the influence of a reference beam in a foundation pile static load test by using a novel high-precision magnetostrictive static level. Background technique [0002] The quality of foundation foundations (such as pile foundations, various natural or artificial treatment foundations) mainly depends on two factors, namely bearing capacity and pile body quality, and bearing capacity is the main factor in the two. Accurate testing of single pile bearing capacity plays a pivotal role in the foundation design and even the superstructure design of various buildings. [0003] Static load test is currently one of the most direct and reliable methods to determine the bearing capacity of pile foundations. The static load test refers to applying axial pressure, axial upward pullout force step by step on the top of the pile, or appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 杨立华洪勋黄日忠阮园园
Owner SHENZHEN BUILDING SAFETY & CONSTR QUALITY TESTING & APPRAISAL CENT
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