考虑邻近结构阻隔影响的基坑开挖前降水引发地层变形的特性
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曾超峰,王硕,袁志成,薛秀丽
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Characteristics of ground deformation induced by pre-excavation dewatering considering blocking effect of adjacent structure
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Chao-feng ZENG,Shuo WANG,Zhi-cheng YUAN,Xiu-li XUE
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| 表 1 土层分布及主要土性参数 |
| Tab.1 Strata distribution and main soil mechanical parameters |
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| 土层性质 | H /m | γ /（kN∙m−3） | K0 | w /% | e | Es /MPa | | 粉质黏土 | 5.5 | 19.35 | 0.49 | 29.9 | 0.811 | 4.00 | | 黏质粉土 | 11.0 | 19.30 | 0.43 | 26.5 | 0.792 | 8.26 | | 粉质黏土 | 19.0 | 20.10 | 0.50 | 26.4 | 0.696 | 5.80 | | 砂质粉土 | 24.0 | 20.15 | 0.42 | 21.9 | 0.640 | 8.71 | | 黏土 | 27.0 | 19.75 | 0.55 | 30.4 | 0.764 | 5.98 | | 砂质粉土 | 33.0 | 20.65 | 0.35 | 20.2 | 0.583 | 8.29 | | 粉质黏土 | 37.0 | 20.50 | 0.39 | 22.4 | 0.611 | 7.26 | | 粉砂 | 42.0 | 20.05 | 0.30 | 18.2 | 0.585 | 10.50 | | 粉质黏土 | 50.0 | 19.30 | 0.39 | 23.8 | 0.676 | 6.20 |
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