Foundation pile static test loading counterforce test method and weight boxes used by same

Abstract

The invention relates to a foundation pile static test loading counterforce test method and weight boxes used by the same. The test method comprises the following steps: arranging a jack in fit connection with a test apparatus on the top of a foundation pile to be tested; stacking and loading balances on a bearing platform under the cooperation of an auxiliary support structure; and testing the loading bearing capacity of the foundation pile to be tested through the test apparatus in fit connection with the jack when the jack gradually jacks up the bearing platform, wherein the balances stacked and loaded on the bearing platform is the piled balance material loaded in a plurality of the weight boxes. The weight boxes which are used in the test method for loading the balance material are particularly detachable combined type weight boxes. After assembly on the site, the weight boxes can be put into use when a loading machine is used to load the local balance material such as sandstone into the boxes. The test method is simple, convenient and quick, greatly reduces the construction cost, and has high safety. In addition, the test method can be used in a random sampling test of the static test for a large-tonnage filling pile.

Description

technical field [0001] The invention relates to a static load test loading reaction force testing method of building foundation piles, in particular to a building foundation pile static load test loading reaction force testing method using a heap load reaction beam device system, and the corresponding device used therein. Background technique [0002] The quality of the building foundation pile will directly affect the overall quality of the building, so static load test of the building foundation pile through the static load test loading reaction test system is an important detection link in ensuring the quality of the building. The traditional static load test reaction system mainly includes the test method using the anchor pile beam reaction device system, the test method using the piled load reaction beam device system, etc. Its basic principle is realized by setting jacks and matching detection instruments on the top of the foundation piles to be tested, and testing the...

AI Technical Summary

Problems solved by technology

The advantage of this method is that it can realize random sampling for the static load test of the tested piles. However, when carrying out large-tonnage tests, if bags of sand or site soil are used as piles of heavy objects, the pileup time will be longer due to the large load. Long and easy to bulge and collapse causing accidents

Moreover, manual sand bagging is labor-intensive and the stacking capacity is small; if concrete prefabricated blocks or steel ingots are used as stacking heavy objects, although the stacking capacity is large and the loading time can be reduced, the transportation of counterweights is large. , high transportation costs, resulting in increased test costs

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