Experimental study on compressive strength of the red-bed soft rock highway tunnel´s surrounding rock

Author

Liao, Jun ; Gao, Lei

fYear

2011

fDate

15-17 July 2011

Firstpage

6507

Lastpage

6510

Abstract

Taking typical surrounding rock of the red-bed soft rock highway tunnel for example, two representative rock samples(mudstone and muddy siltstone) along the highway tunnel´s surrounding rock are chosen to perform tests of compressive strength, by using the uniaxial compressive test and the point load test, the rock compressive strength characteristics under different weathering degree and water action are analyzed; The results indicate that the water sensitivity of mudstone is high and the Water sensitivity of muddy siltstone is blow. The compressive strength of the mudstone decreases with the weathering degree increases significantly.

Keywords

compressive strength; compressive testing; erosion; roads; rocks; sediments; tunnels; muddy siltstone; mudstone; point load test; red-bed soft rock highway tunnel; rock compressive strength characteristics; surrounding rock; uniaxial compressive test; water action; water sensitivity; weathering degree; Civil engineering; Educational institutions; Mechanical factors; Road transportation; Rocks; Sensitivity; Water; highway tunnel; red-bed soft rock; rock mechanics; the compressive strength of surrounding rock;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988534

Filename

5988534