| 广州淤泥质地层深大基坑开挖中的地层变形特征 |
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| 引用本文： | 杜文,宁三子,金罡,孟晓伟,马龙祥,余云翔.广州淤泥质地层深大基坑开挖中的地层变形特征[J].建筑施工,2021,43(3):483-486. |
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| 作者姓名： | 杜文 宁三子 金罡 孟晓伟 马龙祥 余云翔 |
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| 作者单位： | 深圳中铁二局工程有限公司 广东 深圳 518054;中铁南方投资集团有限公司 广东 深圳 518054;中铁二院昆明勘察设计研究院有限责任公司 云南 昆明 650200;西南交通大学交通隧道工程教育部重点实验室 四川 成都 610031 |
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| 摘 要： | 软土地区基坑开挖具有明显的时空效应,且极易出现土体变形量过大的情况,进而对周围环境造成不利影响。针对广州某淤泥质地层基坑,采用流固耦合数值模拟的方法对软土地区基坑开挖支护过程中的地表沉降演变规律进行了研究,并通过现场监测数据验证了数值模拟研究的可靠性。
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| 关 键 词： | 淤泥质软土 基坑开挖 地表沉降 数值模拟 流固耦合 现场监测 |
Characteristics of Ground Deformation During Excavation of Deep and Large Foundation Pit in Muddy Stratum of Guangzhou |
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| DU Wen,NING Sanzi,JIN Gang,MENG Xiaowei,MA Longxiang,YU Yunxiang.Characteristics of Ground Deformation During Excavation of Deep and Large Foundation Pit in Muddy Stratum of Guangzhou[J].Building Construction,2021,43(3):483-486. |
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| Authors: | DU Wen NING Sanzi JIN Gang MENG Xiaowei MA Longxiang YU Yunxiang |
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| Affiliation: | (Shenzhen Engineering Company of CREGC,Shenzhen,Guangdong 518054,China;Sino-Railway South Constructing Group Co.,Ltd.,Shenzhen,Guangdong 518054,China;Kunming Survey,Design and Research Institute Co.,Ltd.of CREEC,Kunming,Yunnan 650200,China;The Key Laboratory of Transportation Tunnel Engineering of the Ministry of Education,Chengdu,Sichuan 610031,China) |
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| Abstract: | The excavation of foundation pit in soft soil area has obvious space-time effect,and it is easy to cause excessive soil deformation,which will cause adverse effects on the surrounding environment.Aiming at a foundation pit in muddy stratum in Guangzhou,the evolution law of ground surface settlement during excavation and support of foundation pit in soft soil area is studied by using fluid structure coupling numerical simulation method,and the reliability of numerical simulation research is verified by on-site monitoring data. |
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| Keywords: | muddy soft soil foundation pit excavation ground surface settlement numerical simulation fluid solid coupling on-site monitoring |
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