Static load test settlement observation device free of datum line beam

Abstract

The invention discloses a static load test settlement observation device free of a datum line beam. The static load test settlement observation device comprises two multi-communication leveling devicegroups, each multi-communication leveling device group consists of a plurality of multi-communication leveling devices, and all the multi-communication leveling devices are correspondingly connectedwith a water pipe through conduits. The input end of the water pipe is connected to the output end of an automatic water injection tank, and the multi-communication leveling devices are correspondingly connected with a data collector through cables. The data collector is connected with a controller. All of the multi-communication leveling devices in one group are uniformly mounted at the top of apile foundation, and all of the multi-communication leveling devices in the other group are disposed at datum points. A jack is installed at the top center of the pile foundation, a surcharge load counter-force system is disposed directly above the jack, and the top of the jack tightly abuts against the surcharge load counter-force system. The static load test settlement observation device can effectively avoid the disadvantage that the traditional datum line beam affects a pile foundation settlement test, and improves the accuracy of the test.

Description

technical field [0001] The invention relates to the field of foundation bearing capacity detection test of civil construction engineering, in particular to a static load settlement observation device. Background technique [0002] The static load test of the foundation bearing capacity test is an important test for the building foundation bearing capacity test, and the reliability and validity of its data are directly related to the safety and quality of the building. The settlement measurement method of the traditional foundation static load test is to fix the displacement sensor on a reference beam erected on site, and extend the measuring head of the displacement sensor to the measuring point of the pile foundation, so as to measure the distance between the reference beam and the measuring point. The relative displacement is taken as the settlement displacement of the pile foundation. This measurement method does not take into account the erection of the reference beam. ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a static load test settlement observation device without a reference beam, so as to solve the technical problem of large error in the experimental data of the static load test using the reference beam in the prior art

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