Soil mixing wall (SMW) construction method pile section steel stress measurement method

A technology for stress measurement and construction method piles, which is applied in basic structure engineering, basic structure testing, construction, etc., can solve problems such as low stress measurement efficiency of H-beams, and achieve the effect of simplifying stress measurement methods and solving low efficiency.

Inactive Publication Date: 2018-12-18
HENAN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for measuring the stress of SMW pile-shaped steel to solve the problem of low efficiency of stress measurement of H-shaped steel in the prior art

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  • Soil mixing wall (SMW) construction method pile section steel stress measurement method
  • Soil mixing wall (SMW) construction method pile section steel stress measurement method
  • Soil mixing wall (SMW) construction method pile section steel stress measurement method

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Embodiment Construction

[0017] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] The specific embodiment of SMW engineering method pile steel stress measuring method of the present invention, as Figure 1 to Figure 2 As shown, the SMW construction method pile steel stress measurement method includes the following steps: 1) Set the test section along the height direction of the H-shaped steel 1. Considering the economy of the measurement method, it is preferred to set the test section along the height direction of the H-shaped steel 1 The position where internal force changes may occur. In this embodiment, when the H-shaped steel 1 used for testing is driven into cement soil, a crown beam 3 and a waist beam 4 are respectively provided along the height direction of the H-shaped steel 1 and passed through the corresponding support rods. 2 Support the H-shaped steel 1, and the end of the H-shaped steel 1 inserted into the cement s...

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Abstract

The invention provides a soil mixing wall (SMW) construction method pile section steel stress measurement method. The SMW construction method pile section steel stress measurement method comprises thefollowing steps that a plurality of test sections are calibrated on the H-section steel in the height direction of H-section steel; stress measurement devices are arranged at the connecting positionsof web plates and flanges of the H-section steel on the test sections; normal stress distribution states at the test sections are measured; and the internal force received by the test sections is further determined. The stress measurement devices are separately arranged at the two connecting positions of the web plates and the flanges of the H-section steel to measure the normal stress distribution states at the test sections of the H-section steel, and further calculation is carried out to determine the axial force, bending moment and shearing force received by the test sections, and the axial force, bending moment and shearing force distribution states in the height direction of the H-section steel are obtained, the internal force distribution state and the change rule of the H-sectionsteel are obtained, the stress measurement method is simplified, and the problem of low efficiency of a measurement method in the prior art is solved.

Description

technical field [0001] The invention relates to a method for measuring the stress of SMW pile steel. Background technique [0002] SMW (Soil Mixing Wall) construction method pile, also known as steel cement-soil mixing pile underground continuous wall, this construction method inserts H-shaped steel into the continuously socketed three-axis cement-soil mixing pile until the cement-soil hardens, thus forming a continuous wall. , impermeability and a certain strength of the underground wall. The SMW construction method pile has the advantages of less impact on the surrounding strata, convenient construction, short construction period, and good economy. It has been widely used in soft soil areas in my country, and is currently being explored and promoted in areas dominated by sandy soil. According to the design requirements of the "Technical Regulations for Shaped Steel Cement Soil Mixing Wall" (JGJ / T199-2010), the lateral water and soil pressure of the foundation pit is entir...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 咸庆军刘晓松肖昭然蒋敏敏冯永陈俊旗李建光张朋
Owner HENAN UNIVERSITY OF TECHNOLOGY
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