- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | ZHANG Kunyong, LI Junji, ZHANG Chi, LI Fudong, ZHU Cheng. Two-stage Analysis Method for Influence of Foundation Pit Excavation on Adjacent Existing Roads[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20220850
|
To address the issue of settlement and cracking of adjacent roads during the excavation of urban foundation pits, the research object was extended from a one-dimensional structure to a two-dimensional structure based on the Winkler theory. Firstly, a calculation model for the settlement field caused by foundation pit excavation was established, and the control equation for road flexural deformation was derived. Secondly, a two-stage analysis method was adopted by considering factors of foundation pit excavation depth, aspect ratio, support stiffness, and thickness of soft soil layer above the pit bottom, so as to provide a correction formula for settlement field caused by foundation pit excavation and a method for predicting maximum surface settlement. Thirdly, the settlement field was substituted into the control equation for road flexural deformation, and a fourth-order nonlinear partial differential equation was solved by using the finite difference method. Finally, the above road calculation and analysis model under the condition of foundation pit excavation was verified by an engineering example. By comparing the field monitoring data with the theoretical solution and numerical simulation, it was found that the errors in road settlement were 15% and 8.3%, respectively, both of which are within acceptable limits, thereby confirming the reliability of the road calculation and analysis model proposed in this study under the condition of foundation pit excavation.
| [1] |
余苑航,阎波. 我国超大城市地下空间开发现状及其发展趋势[J]. 地下空间与工程学报,2021,17(增1): 1-7.
YU Yuan-hang, YAN Bo. Present situation and development trend of underground space in megacity in China[J]. Chinese Journal of Underground Space andEngineering, 2021, 17(S1): 1-7.
|
| [2] |
陈志龙. 中国岩石力学与工程学会地下空间分会//2020中国城市地下空间发展蓝皮书[M]. 南京:科学出版社,2020.
|
| [3] |
程康,徐日庆,应宏伟,等. 杭州软黏土地区某30.2 m深大基坑开挖性状实测分析[J]. 岩石力学与工程学报,2021,40(4): 851-863.
CHENG Kang, XU Riqing, YING Hongwei, et al. Performance analysis of a 30.2 m deep-large excavation in Hangzhou soft clay[J]. Chinese Journal of Rock Mechanics and Engineering, 2021, 40(4): 851-863.
|
| [4] |
董利虎,宋丹青,唐高杰,等. 超大深基坑开挖对周围环境变形影响及对策分析[J]. 水资源与水工程学报,2022,33(1): 199-205,224. doi: 10.11705/j.issn.1672-643X.2022.01.28
DONG Lihu, SONG Danqing, TANG Gaojie, et al. Influence of super-large deep foundation pit excavation on the deformation of surrounding environment and countermeasures[J]. Journal of Water Resources and Water Engineering, 2022, 33(1): 199-205,224. doi: 10.11705/j.issn.1672-643X.2022.01.28
|
| [5] |
陈云敏,胡琦,陈仁朋. 杭州地铁湘湖车站基坑坍塌引起的基底土深层扰动与沉降分析[J]. 土木工程学报,2014,47(7): 110-117.
CHEN Yunmin, HU Qi, CHEN Renpeng. Soil disturbance by the collapse of retaining wall for a pit excavation and the induced additional settlement: a case study of Hangzhou Metro Xianghu Station[J]. China Civil Engineering Journal, 2014, 47(7): 110-117.
|
| [6] |
周鹏,李凯. 城市建成区建筑基坑开挖对周边道路的影响及其时空特征研究[J]. 测绘通报,2021(增2): 136-139,144.
ZHOU Peng, LI Kai. On the settlement monitoring of super high-rise building in the mountainous city and relevant data analysis[J]. Bulletin of Surveying and Mapping, 2021(S2): 136-139,144.
|
| [7] |
闫周福. 软土地区深基坑开挖对围护结构及其周边环境影响的研究[D]. 重庆:重庆大学,2009.
|
| [8] |
方浩. 软土地区基坑开挖对邻近高铁路基变形影响及保护距离研究[D]. 南京:东南大学,2017.
|
| [9] |
雷华阳,冯双喜,万勇峰,等. 基坑开挖对既有临近滩涂铁路路基影响规律及安全措施研究[J]. 天津大学学报(自然科学与工程技术版),2019,52(9): 969-978.
LEI Huayang, FENG Shuangxi, WAN Yongfeng, et al. Influence law and safety measures of foundation pit excavation on existing railway subgrade in tidal flat areas[J]. Journal of Tianjin University (Science andTechnology), 2019, 52(9): 969-978.
|
| [10] |
储成伍. 深基坑开挖对邻近铁路路基变形的影响[J]. 铁道建筑,2021,61(3): 83-86,102. doi: 10.3969/j.issn.1003-1995.2021.03.19
CHU Chengwu. Influence of deep foundation pit excavation on adjacent railway subgrade deformation[J]. Railway Engineering, 2021, 61(3): 83-86,102. doi: 10.3969/j.issn.1003-1995.2021.03.19
|
| [11] |
张治国,黄茂松,王卫东. 邻近开挖对既有软土隧道的影响[J]. 岩土力学,2009,30(5): 1373-1380. doi: 10.3969/j.issn.1000-7598.2009.05.033
ZHANG Zhiguo, HUANG Maosong, WANG Weidong. Responses of existing tunnels induced by adjacent excavation in soft soils[J]. Rock and Soil Mechanics, 2009, 30(5): 1373-1380. doi: 10.3969/j.issn.1000-7598.2009.05.033
|
| [12] |
WINKLER E. Die Lehre von der Elasticitaet und Festigkeit: mit besonderer Rücksicht auf ihre Anwendung in der Technik, für polytechnische Schulen, Bauakademien, Ingenieure, Maschinenbauer, Architecten, etc[M]. Prag: [s. n. ], 1867.
|
| [13] |
POULOS H G, CHEN L T. Pile response due to excavation-induced lateral soil movement[J]. Journal of Geotechnical and Geoenvironmental Engineering, 1997, 123(2): 94-99. doi: 10.1061/(ASCE)1090-0241(1997)123:2(94)
|
| [14] |
KLAR A, VORSTER T E B, SOGA K, et al. Soil—pipe interaction due to tunnelling: comparison between Winkler and elastic continuum solutions[J]. Géotechnique, 2005, 55(6): 461-466.
|
| [15] |
VORSTER T E, KLAR A, SOGA K, et al. Estimating the effects of tunneling on existing pipelines[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2005, 131(11): 1399-1410. doi: 10.1061/(ASCE)1090-0241(2005)131:11(1399)
|
| [16] |
RALPH PECK B. Deep Excavation and tunneling in soft ground. state-of-the-art report[C]//Proceedings of the 7th International Conference on Soil Mechanics and Foundation Engineering, Mexico: [s. n. ], 1969, 4: 225-290.
|
| [17] |
张坤勇,王宇,艾英钵. 任意荷载下管土相互作用解答[J]. 岩土工程学报,2010,32(8): 1189-1193.
ZHANG Kunyong, WANG Yu, AI Yingbo. Analytical solution to interaction between pipelines and soils under arbitrary loads[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(8): 1189-1193.
|
| [18] |
黄义,何芳社. 弹性地基上的梁、板、壳[M]. 北京:科学出版社,2005.
|
| [19] |
张陈蓉,蔡建鹏,黄茂松. 基坑开挖对邻近地埋管线的影响分析[J]. 岩土工程学报,2010,32(增2): 154-157.
ZHANG Chenrong, CAI Jianpeng, HUANG Maosong. Influence of deep excavation on adjacent underground pipelines[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(S2): 154-157.
|
| [20] |
朱晓宇,黄茂松,张陈蓉. 基坑开挖对邻近桩基础影响分析的DCFEM法[J]. 岩土工程学报,2010,32(增1): 181-185.
ZHU Xiaoyu, HUANG Maosong, Zhang Chen-rong. Displacement-controlled FEM for analyzing influences of excavation of foundation pits on adjacent pile foundations[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(S1): 181-185.
|
| [21] |
唐孟雄,赵锡宏. 深基坑周围地表任意点移动变形计算及应用[J]. 同济大学学报(自然科学版),1996,24(3): 238-244.
TANG Mengxiong, ZHAO Xihong. Ground setttement and deformation calculation and application in deep excavation[J]. Journal of Tongji University (Natural Science), 1996, 24(3): 238-244.
|
| [22] |
HSIEH P G, OU C Y. Shape of ground surface settlement profiles caused by excavation[J]. Canadian Geotechnical Journal, 1998, 35(6): 1004-1017.
|
| [23] |
陈博浪. 软土地基多道支撑基坑稳定性的强度参数折减有限元分析[D]. 杭州:浙江大学,2011.
|
| [24] |
方晨昱. 杭州某地铁端头井基坑变形分析[D]. 杭州:浙江工业大学,2015.
|
Figures(15) / Tables(4)
DownLoad:
