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Self-balancing foundation load test device

A load test and self-balancing technology, which is applied in basic structure engineering, on-site foundation soil survey, construction, etc., can solve the problems of inaccurate test data, complicated device structure, complicated operation, etc., and achieve high test efficiency and equipment design. The effect of compactness and accurate test data

Active Publication Date: 2013-05-29
SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of test is very cumbersome, costly, and has a long construction period, and there are many uncertain safety hazards. The device used in the test is complex in structure, complex in operation, low in efficiency, inaccurate in test data, high in cost, and poor in safety.

Method used

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  • Self-balancing foundation load test device
  • Self-balancing foundation load test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a self-balancing foundation load test device includes a reaction force system, a force transmission system and a test system. The reaction force system includes a reaction force frame 2 of a square cage structure, a reaction force anchor rod 6 and a reaction force anchor blade 4 The force transmission system includes a jack 3 and a dowel bar 5; the test system includes a stress gauge 1, a dial indicator 8 and a spiral test plate 7; A counterforce anchor blade 4 is provided, and a dowel bar 5 whose length exceeds the counterforce anchor bar 6 at both ends is pierced in the counterforce anchor bar 6, and a spiral test plate 7 is provided outside the lower end of the dowel bar 5, and the upper end of the dowel bar 5 The end face is connected to the jack 3, and the upper part of the jack 3 is provided with a stress gauge 1, and the upper end of the stress gauge 1 is placed on the inner top plate of the reaction frame 2; the dial indicator 8 is pla...

Embodiment 2

[0047] Such as figure 2As shown, a self-balancing foundation load test device includes a reaction force system, a force transmission system and a test system. The reaction force system includes a reaction force frame 2 with a triangular umbrella structure, a reaction force anchor rod 6 and a reaction force anchor blade 4 The force transmission system includes a jack 3 and a dowel bar 5; the test system includes a stress gauge 1, a dial indicator 8 and a spiral test plate 7; A counterforce anchor blade 4 is provided, and a dowel bar 5 whose length exceeds the counterforce anchor bar 6 at both ends is pierced in the counterforce anchor bar 6, and a spiral test plate 7 is provided outside the lower end of the dowel bar 5, and the upper end of the dowel bar 5 The end face is connected to the jack 3, and the upper part of the jack 3 is provided with a stress gauge 1, and the upper end of the stress gauge 1 is placed on the inner top plate of the reaction frame 2; the dial indicato...

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Abstract

The invention relates to a self-balancing foundation load test device, comprising a counter force system, an actuating system and a test system, wherein the counter force system comprises a counter force frame, a counter force anchor rod and a counter force anchor blade; the actuating system comprises a jack and a dowel bar; the test system comprises a stress meter, a dial indicator and a spiral test board; the upper end of the counter force anchor rod is blocked in the counter force frame, the exterior of the counter force anchor rod is provided with the counter force anchor blade, the dowelbar penetrates into the counter force anchor rod, wherein the two ends of the dowel bar extend out of the counter force anchor rod, the exterior of the lower end of the dowel bar is provided with thespiral test board, the upper end face of the dowel bar is connected with the jack, the upper part of the jack is provided with the stress meter, and the upper end of the stress meter is against onto a top plate inside the counter force frame; and the dial indicator is placed at the top of the dowel bar by virtue of a measuring support. By utilizing the self-balancing foundation load test device provided by the invention, multiple load tests in different depths can be carried out at the same plane position, the structure is simple, the operation is easy, and the working efficiency is high. In the invention, a self-balancing counter force system is adopted, and the expenditure cost is reduced or completely saved. The test device provided by the invention is light in weight and is convenientto carry.

Description

technical field [0001] The invention relates to a geotechnical engineering load test device, in particular to a self-balancing foundation load test device. Background technique [0002] The foundation load test is the most basic test for testing foundation strength and deformation parameters, and it is also one of the tests that must be used for foundation evaluation of important buildings (structures). [0003] The current load test technical requirements implement the relevant content in Section 10.2 of the 2009 edition of the "Code for Geotechnical Engineering Investigation" (GB50021-2001). The load test mainly includes shallow plate load test, deep plate load test and spiral plate load test. The above three tests are suitable for different foundation soil and groundwater conditions. The common feature is that the external reaction force must be provided during the test. Ground anchor or Top loading method, etc. This type of test is very cumbersome, costly, and has a lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D1/02
Inventor 杨庆义李志亮郑假余边磊张鸣常增亮刘灿
Owner SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP
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