Abstract
This paper describes an interesting landslide located in the mountainous area of Zhejiang Province, China, which was caused by highway construction. Due to the complex geological conditions, the failure mechanism of the landslide is particularly difficult to analyze. The soil deformations were initially judged to be shallow and partial sliding. However, engineering measures used to stabilize the sliding masses failed. By establishing a comprehensive monitoring system composed of GPS, inclinometers and groundwater level monitors, the deformation of landslide was monitored. It is found that the previous deformation mechanism assumed without the monitoring data is incorrect. On the other hand, there is a large rock ancient landslide in the site, and deformation of the soil mass was caused by the reactivation of this ancient landslide. This case study illustrates the importance to deeply analyze the geological data and the field monitoring data and to correctly understand the geological conditions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Barla M, Antolini F, Bertolo D, Thuegaz P, D’Aria D, Amoroso G (2017) Remote monitoring of Comba Citrin landslide using discontinuous GBInSAR campaigns. Eng Geol 222:111–123
Carlà T, Farina P, Intrieri E, Botsialas K, Casagli N (2017) On the monitoring and early-warning of brittle slope failures in hard rock masses: examples from an open-pit mine. Eng Geol 228:71–81
Codeglia D, Dixon N, Fowmes GJ, Marcato G (2017) Analysis of acoustic emission patterns for monitoring of rock slope deformation mechanisms. Eng Geol 219:21–31
Dong G, Zhang F, Ma M, Fan Y, Zhang J, Wang Z, Chen F (2014) Ancient landslide-dam events in the Jishi Gorge, upper Yellow River valley, China. Quat Res 81(3):445–451
Grana V, Tommasi P (2014) A deep-seated slow movement controlled by structural setting in marly formations of Central Italy. Landslides 11:195–212
Hou TS, Xu GL, Shen YJ, Wu ZZ, Zhang NN (2013) Formation mechanism and stability analysis of the Houba expansive soil landslide. Eng Geol 161:34–43
Irfan M, Uchimura T, Chen Y (2017) Effects of soil deformation and saturation on elastic wave velocities in relation to prediction of rain-induced landslides. Eng Geol 230:84–94
Jiao Y, Wang Z, Wang X, Adoko AC, Yang Z (2013) Stability assessment of an ancient landslide crossed by two coal mine tunnels. Eng Geol 159:36–44
Okewale IA, Coop MR (2017) A study of the effects of weathering on soils derived from decomposed volcanic rocks. Eng Geol 222:53–71
Shou KJ, Wang CF (2003) Analysis of the Chiufengershan landslide triggered by the 1999 Chi-Chi earthquake in Taiwan. Eng Geol 68:237–250
Song HF, Cui W (2016) A large-scale colluvial landslide caused by multiple factors: mechanism analysis and phased stabilization. Landslides 13:321–335
Sun HY, Zhao Y, Shang YQ, Zhong J (2013) Field measurement and failure forecast during the remediation of a failed cut slope. Environ Earth Sci 69:2179–2187
Sun G, Huang Y, Li C, Zheng H (2016) Formation mechanism, deformation characteristics and stability analysis of Wujiang landslide near Centianhe reservoir dam. Eng Geol 211:27–38
Tang H, Liu X, Hu X, Griffiths DV (2015) Evaluation of landslide mechanisms characterized by high-speed mass ejection and long-run-out based on events following the Wenchuan earthquake. Eng Geol 194:12–24
Tu XB, Kwong A, Dai FC, Tham LG, Min H (2009) Field monitoring of rainfall infiltration in a loess slope and analysis of failure mechanism of rainfall-induced landslides. Eng Geol 105:134–150
Zhang GC, Xie N, Tang HM, Zhang L, Wu JP (2015) Survey and cause analyses of ground surface deformation near a foundation pit slope: a case study in the Three Gorges area, China. Nat Hazards 75:13–31
Zhang YS, Guo CB, Lan HX, Zhou NJ, Yao X (2015) Reactivation mechanism of ancient giant landslides in the tectonically active zone: a case study in Southwest China. Environ Earth Sci 74:1719–1729
Zhang J, Wang H, Huang HW, Chen LH (2017) System reliability analysis of soil slopes stabilized with piles. Eng Geol 229:45–52
Zhao Y, Xu M, Guo J, Zhang Q, Zhao HM, Kang XB, Xia Q (2015) Accumulation characteristics, mechanism, and identification of an ancient translational landslide in China. Landslides 12:1119–1130
Zhou X, Burbey TJ (2014) Deformation characteristics of a clayey interbed during fluid injection. Eng Geol 183:185–192
Zhou JW, Cui P, Hao MH (2016) Comprehensive analyses of the initiation and entrainment processes of the 2000 Yigong catastrophic landslide in Tibet, China. Landslides 13:39–54
Acknowledgements
This study was supported by the National Natural Science Foundation of China (41772276) and the Key R&D project of Zhejiang Province (2017C03006). Thanks are given for the geological survey and design information provided by Zhejiang Provincial Institute of Communications Planning, Design & Research, and the monitoring data provided by Qianchao Construction Co., Ltd. of Zhejiang Communications Construction Group.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sun, Hy., Wu, X., Wang, Df. et al. Analysis of deformation mechanism of landslide in complex geological conditions. Bull Eng Geol Environ 78, 4311–4323 (2019). https://doi.org/10.1007/s10064-018-1406-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10064-018-1406-3