Analytical Plastic Solution Around Soil-Digging Holes for Inclined Building and its Application

Chen, Yun-juan; Zhang, Xin

doi:10.1007/s40999-017-0230-7

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…Excavation-induced disturbances pose significant threats to the stability of surrounding rocks near excavations. Chen and Zhang (2019) established an analytical solution of soil's plastic zone around circular digging holes based on Superposition Principle and Rubin's Answer. Moreover, Chen et al (2022) studied the influence of joint crack distribution on the stability of surrounding rock under hydraulic coupling conditions in underground engineering construction.…”

Section: Introductionmentioning

confidence: 99%

Prediction of water inflow and analysis of surrounding rock stability in unfavorable geological mountain tunnel

Chen,

Liu,

et al. 2024

Front. Earth Sci.

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During the construction of a mountain tunnel, water inflow and rock instability are common occurrences due to unfavorable geological conditions, posing serious threats to construction safety. This study focuses on a proposed mountain tunnel and employs multiple formulas to predict potential water inflow during excavation. Based on the amount of water inflow and deformation of surrounding rocks, comprehensive determinations are made for the thickness of grouting rings and permeability coefficients. The results demonstrate that: 1) Different formulas yield slightly varied outcomes but overall trends remain consistent; considering various calculations, the normal water inflow for this tunnel is approximately 115.5908×103 m3/d with a maximum at 210.9100×103 m3/d 2) Increasing grouting ring thickness or decreasing permeability coefficient can effectively reduce water inflow, but the reduction range is gradually narrowed. 3) Pre-grouting curtains have an evident effect in enhancing stability; however, their effectiveness decreases with increased thickness. 4) Taking into account both safety and economic factors, it is recommended that the grouting ring thickness be set at 8 m with a permeability coefficient equaling one 100th that of surrounding rocks for this tunnel project.

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Section: Introductionmentioning

confidence: 99%

Prediction of water inflow and analysis of surrounding rock stability in unfavorable geological mountain tunnel

Chen,

Liu,

et al. 2024

Front. Earth Sci.

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Failure analysis based optimum hole spacing of underexcavation for leaning building rectification

Yue,

Zhang,

Zhang

et al. 2024

Engineering Failure Analysis

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Soil areas numerical determination aimed at correction of a building tilt

Melnikov

Pronozin

Stepanova

et al. 2021

J. Phys.: Conf. Ser.

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The analysis of the soil area in the base of an absolutely stiff building has been proposed in the article. Influencing this area it is possible to correct the tilt. The authors of the paper provide an overview of various methods of the tilt correction. The study of the soil spreading in the basement soil has been carried out; the soil area is less deformed under eccentric loading than under central loading. This area is proposed to be called the area of “deficit” strains. The first series of numerical computations has shown that this area depends only on the tilt of an absolutely stiff building; it is described in accordance with a linear law when using simple geometric shapes: a sector and a segment. The second series of computations has illustrated that when decreasing deformation and strength characteristics of this area, the building tilt is corrected. In here, the entire area of the “deficit” strains is not required to be used, just its basic area incorporating a part of a sector and a segment. These areas are concentrated at the edge of the footing. The optimal range of values for a single coefficient which lowers the basic mechanical characteristics of soil has been established. Conclusions on the computations have been drawn and plan for further research has been proposed.

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Analytical Plastic Solution Around Soil-Digging Holes for Inclined Building and its Application

Cited by 5 publications

References 13 publications

Prediction of water inflow and analysis of surrounding rock stability in unfavorable geological mountain tunnel

Prediction of water inflow and analysis of surrounding rock stability in unfavorable geological mountain tunnel

Failure analysis based optimum hole spacing of underexcavation for leaning building rectification

Soil areas numerical determination aimed at correction of a building tilt

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