| 黄土地区深基坑降水引起的地面沉降规律研究 |
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| 引用本文： | 杜磊.黄土地区深基坑降水引起的地面沉降规律研究[J].铁道标准设计通讯,2013(2):89-92. |
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| 作者姓名： | 杜磊 |
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| 作者单位： | 中铁第一勘察设计院集团有限公司 |
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| 摘 要： | 在典型的黄土地层条件下,以地铁车站深基坑降水引起的地面沉降为主要研究对象,发现现场实测值与理论计算值之间存在明显的差异,从黄土地层的特异性方面解释了差异的主要原因,并从地层变形机理层面阐述了降水对黄土地层沉降的具体影响,明确了现行规范中关于地层沉降计算公式的局限性,最后从实测数据出发,基于最小二乘法,得出了黄土地层由降水导致的地层沉降的经验公式。
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| 关 键 词： | 轨道交通 黄土地层 深基坑 降水 地表沉降 |
Study on the Law of Ground Settlement Caused by Dewatering of Deep Foundation Pit in Loess Region |
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| DU Lei.Study on the Law of Ground Settlement Caused by Dewatering of Deep Foundation Pit in Loess Region[J].Railway Standard Design,2013(2):89-92. |
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| Authors: | DU Lei |
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| Institution: | DU Lei(China Railway First Survey and Design Institute Group Ltd.,Xi’an 710043,China) |
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| Abstract: | As for the typical loess strata,take the ground settlement caused by dewatering of deep foundation pit as the main subject of study,the obvious discrepancies between field measured values and calculated values were found.The discrepancy is explained from the specificity of loess strata,and the specific influences on loess strata settlement caused by dewatering are clarified.The limitation of the currently used calculation formula of ground settlement in relevant standard is pointes out.Finally,in light of the field measured data,and based on the least square method,the empirical formula for ground settlement caused by dewatering in loess strata is obtained. |
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| Keywords: | rail transit loess strata deep foundation pit dewatering ground settlement |
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