Research on the Inclination Curve Type and Dangerous Point Judgment for Deeply Horizontal Displacement of Retaining Structures During Foundation Excavation

HE Qin; CHEN Dajiang; ZHANG Jifeng; LIU Jiatian

doi:10.13204/j.gyjzG20121502

Volume 52 Issue 2

Feb. 2022

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HE Qin, CHEN Dajiang, ZHANG Jifeng, LIU Jiatian. Research on the Inclination Curve Type and Dangerous Point Judgment for Deeply Horizontal Displacement of Retaining Structures During Foundation Excavation[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(2): 96-100,150. doi: 10.13204/j.gyjzG20121502

Citation:

HE Qin, CHEN Dajiang, ZHANG Jifeng, LIU Jiatian. Research on the Inclination Curve Type and Dangerous Point Judgment for Deeply Horizontal Displacement of Retaining Structures During Foundation Excavation[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(2): 96-100,150. doi: 10.13204/j.gyjzG20121502

Citation:

HE Qin, CHEN Dajiang, ZHANG Jifeng, LIU Jiatian. Research on the Inclination Curve Type and Dangerous Point Judgment for Deeply Horizontal Displacement of Retaining Structures During Foundation Excavation[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(2): 96-100,150. doi: 10.13204/j.gyjzG20121502

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Research on the Inclination Curve Type and Dangerous Point Judgment for Deeply Horizontal Displacement of Retaining Structures During Foundation Excavation

doi: 10.13204/j.gyjzG20121502

Guangdong Construction Engineering Quality & Safety Testing Head Station Co., Ltd, Guangzhou 510500, China

Received Date: 2020-12-15
Available Online: 2022-06-30
Publish Date: 2022-02-20

Abstract

Abstract

The variation curve of the deeply horizontal displacement of foundation excavation is influenced by many factors such as retaining forms, geological conditions and surrounding building loads. Therefore, the shape of the inclination measurement curve is different. In complex conditions, even the actual measured value exceeded the control value, the slopes of foundation still safe, namely, the maximum horizontal displacement was not the most dangerous point of the structure. Therefore, 105 inclination curves from 8 typical retaining projects of foundation excavation were statistically classified, and shapes of the curves and their force characteristics were correlated with each other;as well, a method for hazard judgment of piles by relative displacement was proposed. The results showed that the inclination curves could be roughly divided into five categories: the parabo type, the open type, the wave type, the inverse S type and the other according to the curve characteristics; the method for finding the dangerous points of the retaining structure by the relative displacement method was basically feasible. The stress of the retaining structure had a linear relation with the relative displacement, which increased with the increase of the relative displacement offset value.
- foundation excavation,
- deeply horizontal displacement,
- line type of inclination curve,
- dangerous point

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References(17)

References

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