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Measuring instrument for foundation pile low strain detection and on-site monitoring system

A technology of measuring instrument and monitoring system, which is applied in the test of foundation structure, foundation structure engineering, construction, etc. It can solve the problems of inability to accurately judge the defects of the pile body and lower part, etc., and achieve the effect of light weight and small volume

Inactive Publication Date: 2015-08-19
BEIJING JIAKEHONGDA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under some specific measurement conditions, it is impossible to accurately judge the defects on the pile body and lower part

Method used

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  • Measuring instrument for foundation pile low strain detection and on-site monitoring system
  • Measuring instrument for foundation pile low strain detection and on-site monitoring system
  • Measuring instrument for foundation pile low strain detection and on-site monitoring system

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Experimental program
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Effect test

Embodiment Construction

[0014] The specific implementation methods and steps of on-site testing are as follows:

[0015] (1) According to the on-site situation, choose wired mode acquisition or local area wireless mode acquisition, and only one acceleration or velocity channel can be connected during preliminary detection;

[0016] (2) If the wireless mode is selected, the sensor needs to be connected to any acquisition channel interface of the wireless terminal; if the wired mode is selected, the sensor should be connected to any acquisition channel interface of the foundation pile dynamic tester;

[0017] (3) According to the connected channel, set the opened channel or wireless terminal and the corresponding sensitivity inside the foundation pile dynamic tester;

[0018] (4) The sensor is installed on the specified position of the pile top of the measured pile;

[0019] (5) if image 3 As shown, strike the top of the pile with the hammer body in the vertical direction;

[0020] (6) The measured...

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Abstract

The invention relates to a test recording instrument used for measuring the hammering force and pile body vibration in foundation pile low strain detection and a monitoring system used for monitoring on-site detection personnel. The instrument can be flexibly connected with multiple sensors such as a force sensor, a velocity sensor and an accelerated velocity sensor in a matched mode and can fully perform multi-aspect test on a measured foundation pile on site; meanwhile, a local area wireless function can be started, and a wireless terminal connected with the instrument in the matched mode can be started. The wireless terminal also can be connected with the sensors such as the force sensor, the velocity sensor and the accelerated velocity sensor in the matched mode and can be carried by the on-site detection personnel to be flexibly used in the detection site, and the site test is convenient; The site detection instrument has the functions of 3G data transmission and GPS location, and can be communicated with a data centre server to monitor the detection behavior of the on-site detection personnel.

Description

technical field [0001] The invention relates to a test recording instrument for measuring hammering force and pile body vibration in foundation pile low-strain detection and a supervision system for supervising on-site inspection personnel, belonging to the field of pile foundation engineering quality detection in civil engineering. Background technique [0002] In the quality inspection of pile foundation engineering, the low strain detection method of foundation pile is often used to detect the structural integrity of pile body in pile foundation. In the traditional low-strain detection of foundation piles, generally only one acceleration sensor is used to measure the propagation characteristics of one-dimensional longitudinal waves in the pile body to judge the integrity of the pile body. Under some specific measurement conditions, it is impossible to accurately judge the defects on the upper and lower parts of the pile. [0003] At the same time, with the expansion of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00
Inventor 陈凡李健民王海渊金隆韩玉仲张峰
Owner BEIJING JIAKEHONGDA TECH CO LTD
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