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Device for treating pile head for vertical static load test and construction method thereof

A technology of processing device and construction method, which is applied in the direction of measuring device, infrastructure test, infrastructure engineering, etc. to achieve the effect of ensuring accuracy

Active Publication Date: 2013-05-22
ZHEJIANG UNIV CITY COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no effective method in the static load test engineering practice to prevent loading eccentricity, accurately control the pile pressing force, and accurately measure the vertical deformation of the pile with a dial indicator. It is urgent to find a technical measure to solve the existing problems. question

Method used

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  • Device for treating pile head for vertical static load test and construction method thereof

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Embodiment Construction

[0025] refer to figure 1 As shown, the pile head processing device for vertical static load test includes pile head pressure-bearing casing 11, pressure-bearing leveling screw 10, pressure-bearing plate 8, strip level 9, jack fixing ring 7, jack 6, load sensor 4. Load sensor fixing device 2, reference beam 15, reference pile 16.

[0026] Among them, the center line of the pile head pressure casing 11, the pressure plate 8, the jack fixing ring 7, the load sensor fixing device 2 coincides with the axis 14 of the pile 13, which can ensure that the force center line of the jack and the load sensor 4 is in line with the pile. The body axis coincides.

[0027] The pile head pressure-bearing casing 11 is open downward and has a height of 0.5m. It is made of steel pipe, and its inner diameter is slightly larger than the outer diameter of the pile body 13 to be tested. Two layers of corner bolt holes are arranged on the side wall, and each layer has three corner bolt holes. , it is ...

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Abstract

The invention relates to a device for treating a pile head for a vertical static load test and a construction method thereof. The device comprises a bearing plate, wherein a jack is installed above the bearing plate. The device is characterized in that a pile head bearing hoop is installed below the bearing plate by levelling devices; level gauges are symmetrically arranged at the two sides of the jack above the bearing plate; a load sensor is arranged above the jack; the load sensor is fixed on an I-beam and is connected with a frequency instrument; the pile head bearing hoop, the bearing plate, the jack, the load sensor and the I-beam are positioned on the same axis; reference piles are provided with dial indicator measuring bar troughs; and dial indicators are fixed on the reference piles. The device and the construction method have the beneficial effects of avoiding pile eccentricity and compression and accurately controlling pressure on the pile and vertical deformation of the dial indicator accurate measuring pile, thus ensuring the accuracy of the static load test data.

Description

technical field [0001] The invention relates to a pile head processing device for a vertical static load test, in particular to a pile head for a vertical static load test which avoids eccentric compression of piles, accurately controls the pile pressing force and accurately measures the vertical deformation of piles with a dial indicator As for the processing device, the present invention also provides a construction method of the pile head processing device. Background technique [0002] Static load test is the most direct, basic, and most reliable method among many methods to determine the ultimate bearing capacity of a single pile. The load transfer, pile side resistance, pile end resistance, pile shaft axial force, and load can be obtained by embedding test components. Parameters such as the settlement relationship. The loading reaction device for static load test can be divided into anchor pile beam reaction device, ballast platform reaction device, anchor pile weight...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/00E02D33/00
Inventor 王新泉魏新江张世民陈永辉章劼刘安远齐昌广陈龙章健朱浩东潘峰叶丰
Owner ZHEJIANG UNIV CITY COLLEGE
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