Open AccessCharacteristics and simulation study of ground fissure activities in Gaoliying, Beijing
Author(s) -
Zhenjiang Meng,
Zhongjie Fan,
Wendong Fan,
Junfei Qiao,
Yanqiu Leng,
Feiyong Wang,
Jie Zhao
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/349/1/012035
Subject(s) - geology , beijing , fissure , geotechnical engineering , groundwater , fault (geology) , settlement (finance) , deformation (meteorology) , dislocation , displacement (psychology) , tension (geology) , vertical displacement , seismology , china , geomorphology , ultimate tensile strength , geography , psychology , paleontology , oceanography , materials science , composite material , world wide web , computer science , metallurgy , payment , psychotherapist , archaeology
The ground fissures in Gaoliying, Beijing, has caused panic among local people, and also caused severe damage to buildings and public facilities in its affected area. This paper takes the ground fissures as the research prototype and reveals its development and activities characteristics by field investigation and trenching exploration; The Flac3D finite difference method has also been used to simulate and calculate the deformation and failure characteristics of model strata under different fault dislocations and varying descend amounts of groundwater level. The results show that the ground fissure in Gaoliying are linearly distributed and cause the destruction mainly by vertical dislocation and horizontal tension in the shallow strata; Moreover, the differential settlement of the upper and lower strata of the model near the fault increases with the increase of fault dislocation. Vertical displacement and stress of soils on both sides of the fault are quite different, and the difference increases with the decrease of groundwater level.