Narrow groove shallow flat plate load test method

Abstract

The invention discloses a narrow groove shallow flat plate load test method. The narrow groove shallow flat plate load test method comprises the following steps that a narrow groove is excavated, whether the width of the groove meets the requirement is detected, and side vertical assemblies are inserted into the side wall of the narrow groove; a force bearing steel plate is placed at the bottom of the narrow groove, and the distances from the force bearing steel plate to the side vertical assemblies on the two sides are the same; the two ends of a profile steel reaction frame are welded to the side vertical assemblies, and the distance between a lower flange plate and an upper surface of the force bearing steel plate is kept larger than the static height of a jack; and whether the center of the profile steel reaction frame is aligned with the center of the bearing steel plate is detected, the jack abuts against the position between the profile steel reaction frame and the bearing steel plate, and a displacement monitoring probe is used for detecting the moving position of the bearing steel plate. The problems that in the prior art, a narrow groove shallow plate load test is high in dangerousness, poor in stability and inconvenient to test are solved in a force transmission mode, a large number of concrete blocks or sand bags do not need to be arranged, operation is easy and convenient, overall movement can be achieved, and testing is easy and convenient.

Description

Technical field [0001] The present invention relates to the field of engineering, in particular, to a shallow tablet load test method of narrow trench. Background technique [0002] At present, the shallow tablet load test is an important standard for the inspection site. The rigid plates of a certain size and geometric shape are placed on the quasi-building site, and the load is placed step by step, and measured The stable settlement under each stage is reached until the foundation damage criteria are reached, thereby obtaining a load-settlement curve. Shallow plate load test of the ground soil can be applied to determine the carrying capacity and deformed parameters within the main impact of the pressure on the pressure plate of the shallow partial soil layer, and the underlying plate area should not be less than 0.25 square meters, for soft soil and particle size. The larger filling should not be less than 0.5 square meters, and the land foundation should not be less than 1 sq...

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