基坑开挖对周边环境的影响

doi:10.13278/j.cnki.jjuese.20190003

摘要/Abstract

摘要： 为了更深入地研究深基坑开挖对周边环境的影响，运用Midas GTS/NX软件对长春某深基坑工程开挖过程中周边建筑物进行了模拟，并与现场监测结果进行对比分析，探讨了周边环境的变化规律。结果表明：深基坑开挖会引起围护结构产生朝向基坑内的水平位移，位移最大值为10.8 mm，与实际监测数据7.9 mm相差了2.9 mm，计算结果与实测结果在误差许可范围内基本吻合；对于浅基础建筑物，在距离基坑0.6H~0.8H（H为基坑开挖深度）处建筑物沉降和地表沉降差异较大，建筑物表现为不均匀沉降。

关键词: 基坑开挖, 周边环境, 数值模拟, 数据分析

Abstract: In order to study the influence of deep foundation pit excavation on the surrounding environment, the excavation process of a deep foundation pit in Changchun was numerically simulated for its effect on the surrounding buildings by using Midas GTS/NX software. Compared with the on-site monitoring records, the changes of the surrounding environment were discussed. The results show that the calculated results are basically consistent with the measured results; the deep foundation pit excavation caused a displacement of the enclosure structure towards the foundation pit, and the maximum displacement is 10.8 mm, 2.9 mm larger than that of the actual monitoring data of 7.9 mm; for the shallow foundation in the buildings, the settlement and surface settlement of the buildings are different from those of a foundation pit at 0.6H-0.8H (excavation depth of foundation pit), and the building settlement is uneven.

Key words: excavation, surrounding environment, numerical simulation, data analysis

中图分类号:

TU47

孙超, 许成杰. 基坑开挖对周边环境的影响[J]. 吉林大学学报(地球科学版), 2019, 49(6): 1698-1705.

Sun chao, Xu Chengjie. Influence of Excavation of a Deep Excavation on the Surrounding Environment[J]. Journal of Jilin University(Earth Science Edition), 2019, 49(6): 1698-1705.

参考文献

[1] 杨丽春,庞宇斌,李慎刚.超长基坑开挖的空间效应[J].吉林大学学报(地球科学版),2015,45(2):541-545. Yang Lichun, Pang Yubin, Li Shengang.The Spatial Effect of Excavation of Extra Long Foundation Pit[J].Journal of Jilin University(Earth Science Edition), 2015, 45(2):541-545.
[2] 成怡冲,龚迪快,叶俊能,等.基坑外设置隔离桩对土体水平位移的隔断效果分析[J].防灾减灾工程学报,2019,39(3):478-486. Cheng Yichong, Gong Dikuai, Ye Junneng, et al. Analysis of the Effect of Isolation Piles on the Horizontal Displacement of Soil Outside the Foundation Pit[J]. Journal of Disaster Prevention and Mitigation Engineering, 2019, 39(3):478-486.
[3] 郑刚,邓旭,刘畅,等.不同围护结构变形模式对坑外深层土体位移场影响的对比分析[J].岩土工程学报,2014,36(2):273-285. Zheng Gang,Deng Xu,Liu Chang,et al. Comparative Analysis of the Influence of Deformation Modes of Different Retaining Structures on the Displacement Field of Deep Soil Outside the Pit[J]. Chinese Journal of Geotechnical Engineering,2014,36(2):273-285.
[4] 张治国,赵其华,鲁明浩.邻近深基坑开挖的历史保护建筑物沉降实测分析[J].土木工程学报,2015,48(增刊2):137-142. Zhang Zhiguo,Zhao Qihua,Lu Minghao. Analysis of the Settlement Analysis of Historical Protection Buildings in the Excavation of Deep Foundation Pit[J]. China Civil Engineering Journal,2015,48(Sup.2):137-142.
[5] 王卫东,徐中华.预估深基坑开挖对周边建筑物影响的简化分析方法[J].岩土工程学报,2010,32(增刊1):32-38. Wang Weidong,Xu Zhonghua. Simplified Analysis Method for Predicting the Influence of Deep Foundation Pit Excavation on Surrounding Buildings[J]. Chinese Journal of Geotechnical Engineering,2010,32(Sup.1):32-38.
[6] 张爱军,莫海鸿,李爱国,等.基坑开挖对邻近桩基影响的两阶段分析方法[J].岩石力学与工程学报,2013,32(增刊1):2746-2750. Zhang Aijun, Mo Haihong,Li Aiguo et al.Two-Stage Analysis Method for Influence of Foundation Pit Excavation on Adjacent Pile Foundation[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(Sup.1):2746-2750.
[7] 徐洪钟,崔文森,胡文杰.南京地区地铁车站深基坑变形性状分析[J].防灾减灾工程学报,2018,38(4):599-607. Xu Hongzhong,Cui Wensen,Hu Wenjie. Analysis of Deformation Behavior of Deep Foundation Pit of Nanjing Metro Station[J]. Journal of Disaster Prevention and Mitigation Engineering,2018,38(4):599-607.
[8] 刘建航,侯学渊.基坑工程手册[M].北京:中国建筑工业出版社,1997. Liu Jianhang, Hou Xueyuan. Handbook of Foundation Pit Engineering[M]. Beijing:China Building Industry Press, 1997.
[9] 徐中华,王卫东.敏感环境下基坑数值分析中土体本构模型的选择[J].岩土力学,2010,31(1):258-264,326. Xu Zhonghua,Wang Weidong. Selection of Soil Constitutive Model in Numerical Analysis of Foundation Pit Under Sensitive Environment[J]. Rock and Soil Mechanics,2010,31(1):258-264,326.
[10] 高文华,杨林德,沈蒲生.软土深基坑支护结构内力与变形时空效应的影响因素分析[J].土木工程学报,2001(5):90-96. Gao Wenhua, Yang Linde, Shen Pusheng. Analysis of Factors Affecting the Time and Space Effect of Internal Force and Deformation of Deep Foundation Pit Support Structure in Soft Soil[J]. China Civil Engineering Journal,2001(5):90-96.
[11] 深圳市基坑支护技术规范:SJG 05-2011[S].北京:中国建筑工业出版社,2011. Shenzhen City Foundation Pit Support Technical Specification:SJG 05-2011[S]. Beijing:China Building Industry Press,2011.
[12] 李琳,段占宇,张建新,等.悬臂围护基坑开挖对邻近双桩基础影响的三维数值研究[J].沈阳建筑大学学报(自然科学版),2018,34(6):1078-1088. Li Lin,Duan Zhanyu, Zhang Jianxin, et al. Three-Dimensional Numerical Study on the Iinfluence of Excavation of Cantilever Retaining Foundation on Adjacent Double Pile Foundation[J]. Journal of Shenyang Jianzhu University(Natural Science Edition), 2018, 34(6):1078-1088.
[13] 肖潇,李明广,陈锦剑,等.基坑开挖对围护墙竖向变形的影响机理[J].上海交通大学学报,2018,52(12):1552-1558. Xiao Xiao,Li Mingguang,Chen Jinjian,et al. Influence Mechanism of Foundation Pit Excavation on Vertical Deformation of Enclosure Wall[J].Journal of Shanghai Jiaotong University,2018,52(12):1552-1558.
[14] 建筑基坑支护技术规程:DB11/489-2007[S].北京:中国建筑工业出版社,2007. Technical Regulations for Building Foundation Pit Support:DB11/489-2007[S]. Beijing:China Building Industry Press,2007.
[15] 楼春晖,夏唐代,刘念武.软土地区基坑对周边环境影响空间效应分析[J].岩土工程学报,2019,41(增刊1):249-252. Lou Chunhui, Xia Tangdai, Liu Nianwu. Analysis of Spatial Effects of Foundation Pits on Surrounding Environment in Soft Soil Areas[J]. Chinese Journal of Geotechnical Engineering, 2019,41(Sup.1):249-252.
[16] 郭院成,詹景元,杜浩鸣,等.郑州粉土基坑开挖对下卧地铁隧道的影响[J].建筑科学与工程学报,2019,36(5):11-20. Guo Yuancheng,Zhan Jingyuan,Du Haoming,et al. Effects of Zhengzhou Silt Foundation Pit Excavation on the Underlying Subway Tunnel[J].Journal of Building Science and Engineering,2019,36(5):11-20.
[17] Ernesto V, Alan T.Probabilistic Estimate of Rock Mass Static and Synamic Desmands for Underground Excavation Stabilisation[J]. Journal of Rock Mechanics and Geotechnical Engineering,2019,11(3):481-493.
[18] 马征,陈颖辉,王鹏,等.基于MAPSO-LSSVM模型的基坑开挖对周围建筑物沉降预测研究[J].昆明理工大学学报(自然科学版),2017,42(3):101-107. Ma Zheng,Chen Yinghui,Wang Peng,et al. Study on Settlement Prediction of Surrounding Buildings Based on MAPSO-LSSVM Model[J]. Journal of Kunming University of Science and Technology(Natural Science),2017,42(3):101-107.
[19] 叶任寒,单华峰,王显椿,等.软土地区深基坑开挖变形监测[J].地下空间与工程学报,2016,12(增刊1):306-311. Ye Renhan, Shan Huafeng, Wang Xianchun,et al. Monitoring of Deep Foundation Pit Excavation Deformation in Soft Soil Area[J]. Chinese Journal of Underground Space and Engineering, 2016, 12(Sup.1):306-311.

相关文章 15

[1]	王常明, 李桐, 田书文, 李硕. 基于LAHARZ的泥石流堆积范围预测模型的建立及应用[J]. 吉林大学学报(地球科学版), 2019, 49(6): 1672-1679.
[2]	孙可明, 张宇. 缝网间距对高温岩体储留层温度影响规律模拟[J]. 吉林大学学报(地球科学版), 2019, 49(6): 1723-1731.
[3]	常晓军, 葛伟亚, 于洋, 赵宇, 叶龙珍, 张泰丽, 魏振磊. 福建省永泰县东门旗山滑坡诱发机理与防治措施[J]. 吉林大学学报(地球科学版), 2019, 49(4): 1063-1072.
[4]	杨新乐, 秘旭晴, 张永利, 李惟慷, 戴文智, 王亚鹏, 苏畅. 注热联合井群开采煤层气运移采出规律数值模拟[J]. 吉林大学学报(地球科学版), 2019, 49(4): 1100-1108.
[5]	尹崧宇, 赵大军. 超声波振动下不同应力条件对岩石强度影响的试验[J]. 吉林大学学报(地球科学版), 2019, 49(3): 755-761.
[6]	杨冰, 许天福, 李凤昱, 田海龙, 杨磊磊. 水-岩作用对储层渗透性影响的数值模拟研究——以鄂尔多斯盆地东北部上古生界砂岩储层为例[J]. 吉林大学学报(地球科学版), 2019, 49(2): 526-538.
[7]	陈永珍, 吴斌, 杨帆, 吴纲, 翁杨. 充气截排水渗流与变形耦合数值模拟[J]. 吉林大学学报(地球科学版), 2019, 49(2): 485-492.
[8]	陈永珍, 吴纲, 孙红月, 尚岳全. 滑坡充气截排水有效性数值模拟[J]. 吉林大学学报(地球科学版), 2018, 48(5): 1427-1433.
[9]	殷长春, 杨志龙, 刘云鹤, 张博, 齐彦福, 曹晓月, 邱长凯, 蔡晶. 基于环形扫面测量的三维直流电阻率法任意各向异性模型响应特征[J]. 吉林大学学报(地球科学版), 2018, 48(3): 872-880.
[10]	阮大为, 李顺达, 毕亚强, 刘兴宇, 陈旭虎, 王兴源, 王可勇. 内蒙古阿尔哈达铅锌矿床构造控矿规律及深部成矿预测[J]. 吉林大学学报(地球科学版), 2017, 47(6): 1705-1716.
[11]	谭家华, 雷宏武. 基于GMS的三维TOUGH2模型及模拟[J]. 吉林大学学报(地球科学版), 2017, 47(4): 1229-1235.
[12]	尹崧宇, 赵大军, 周宇, 赵博. 超声波振动下非均匀岩石损伤过程数值模拟与试验[J]. 吉林大学学报(地球科学版), 2017, 47(2): 526-533.
[13]	姜艳娇, 孙建孟, 高建申, 邵维志, 迟秀荣, 柴细元. 低孔渗储层井周油藏侵入模拟及阵列感应电阻率校正方法[J]. 吉林大学学报(地球科学版), 2017, 47(1): 265-278.
[14]	孙建国. 高频渐近散射理论及其在地球物理场数值模拟与反演成像中的应用——研究历史与研究现状概述以及若干新进展[J]. 吉林大学学报(地球科学版), 2016, 46(4): 1231-1259.
[15]	王常明, 常高奇, 吴谦, 李文涛. 静压管桩桩-土作用机制及其竖向承载力确定方法[J]. 吉林大学学报(地球科学版), 2016, 46(3): 805-813.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed