Open AccessPrediction of Ground Subsidence During Underground Construction of Metro Line 2, Section 1, Ben Thanh - Tham Luong
Author(s) -
Nhat Luan VO,
Thi Nu Nguyen,
Minh Toan
Publication year - 2021
Publication title -
inżynieria mineralna
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.215
H-Index - 9
ISSN - 1640-4920
DOI - 10.29227/im-2021-02-52
Subject(s) - excavation , settlement (finance) , geology , subsidence , section (typography) , groundwater related subsidence , pleistocene , holocene , ho chi minh , hydrogeology , line (geometry) , groundwater , geotechnical engineering , archaeology , mining engineering , geomorphology , geography , paleontology , structural basin , cartography , advertising , business , geometry , mathematics , scale (ratio) , world wide web , computer science , payment
Urban metro line No. 2 from An Suong station to Thu Thiem is one of the six metro lines thatis planned to be built in Ho Chi Minh City (HCMC). The metro line goes through the area in which thestratigraphy consists of many units, distributed from 20-80 m. The hydrogeology mainly has 2 aquifers,namely Holocene, and Pleistocene which affecting the deep excavation. During construction, there willbe some problems that will affect the work on the surface such as settlement, cracking, and damage. Byfinite element method on Plaxis software, the article forecasts the surface settlement during this metroline No.2. The results show that the ground settlement is relatively large in areas with soft groundstructures. The settlement results depend on the geological structure characteristics, hydrogeologicalcharacteristics, and the shape and size of the tunnels.