Test pipe for testing internal force of reinforced concrete cast-in-place pile and installing method thereof

Abstract

The invention discloses a test pipe for testing internal force of a reinforced concrete cast-in-place pile and an installing method thereof. The test pipe comprises a reinforcement cage installed in areinforced concrete grouting drill hole and two test pipe bodies vertically installed in the reinforcement cage. The reinforcement cage comprises multiple reinforcement cage sections sequentially connected from bottom to top. A lower test pipe cover is arranged at the bottom end of each test pipe body. An upper test pipe cover is arranged at the top end of each test pipe body. Each test pipe bodycomprises multiple test pipe sections sequentially connected from bottom to top. The method comprises the following steps of tying of the reinforcement cage sections, splicing of the test pipe sections, down hoisting and installing of the test pipe sections and the reinforcement cage sections and installing of protecting pipes. The test pipe is reasonable in design and low in cost, tying and installing time is short, the test position of the test pipe located in the reinforced concrete cast-in-place pile is ensured, thus strain of a pile body can be tested accurately, and the problems that when an existing test pipe installing method is used, the test pipe deforms, or distorts or breaks off are solved.

Description

technical field [0001] The invention belongs to the technical field of internal force testing of reinforced concrete cast-in-situ piles, in particular to a measuring tube for testing the internal force of reinforced concrete cast-in-place piles and an installation method thereof. Background technique [0002] Reinforced concrete cast-in-place piles have the advantages of high bearing capacity, stable quality, and strong applicability, and are widely used as pile foundations for building foundation treatment. The relevant design parameters obtained from the internal force test of reinforced concrete cast-in-situ piles are the most intuitive and reliable method to understand the stress status of reinforced concrete cast-in-situ piles. Among the testing methods of internal force of pile foundation, sliding micrometry technology has been more and more widely used in the internal force test of pile foundation in recent years due to its advantages of high precision, strong reliabi...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a measuring tube for testing the internal force of reinforced concrete cast-in-situ piles in view of the deficiencies in the above-mentioned prior art. It ensures that the measuring tube is located at the test position of the reinforced concrete pouring pile, avoids problems such as deformation, twisting, and breaking of the measuring tube that often occur in existing measuring tube installation methods, ensures the waterproof performance of the measuring tube and the accuracy of strain testing, high efficiency, and strong practicability

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