Stress redistribution and ground arch development during tunneling

Autor:	Chee Nan Chen, Cheng-Tsung Tseng, Wen-Yen Huang
Rok vydání:	2011
Předmět:	Engineering Computer simulation business.industry Building and Construction Geotechnical Engineering and Engineering Geology Overburden pressure Stress (mechanics) Inflection point Geotechnical engineering Development (differential geometry) Arch business Roof Quantum tunnelling
Zdroj:	Tunnelling and Underground Space Technology. 26:228-235
ISSN:	0886-7798
DOI:	10.1016/j.tust.2010.06.012
Popis:	Three-dimensional stress adjustment caused by tunneling is related with ground arching development. Investigating the development of ground arching by stress redistribution during tunneling is presented. A three-dimensional numerical simulation model was developed to gain understanding of adjustment of tunneling stress. Vertical stress adjustments σZZ above the tunnel roof during tunneling are analyzed, using four different cover depths H and four lateral pressure coefficients K. Shift of the inflection points of σZZ-depth curves above the tunnel roof during tunneling can be a reliable index to show the development of ground arching.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e8234304c5a8d032b48fe16c2b26864d https://doi.org/10.1016/j.tust.2010.06.012 Zobrazit plný text záznamu Full Text from ScienceDirect