GEOLOGICAL STRENGTH INDEX METHOD FOR ROCK MASS PARAMETERS ABOUT JINPING UNDERGROUND CAVERNS

FAN Yongbo; REN Ai'wu; XIONG Zheng

Volume 18 Issue 6

Dec. 2010

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FAN Yongbo, REN Ai'wu, XIONG Zheng. 2010: GEOLOGICAL STRENGTH INDEX METHOD FOR ROCK MASS PARAMETERS ABOUT JINPING UNDERGROUND CAVERNS. JOURNAL OF ENGINEERING GEOLOGY, 18(6): 956-962.

Citation:

FAN Yongbo, REN Ai'wu, XIONG Zheng. 2010: GEOLOGICAL STRENGTH INDEX METHOD FOR ROCK MASS PARAMETERS ABOUT JINPING UNDERGROUND CAVERNS. JOURNAL OF ENGINEERING GEOLOGY, 18(6): 956-962.

FAN Yongbo, REN Ai'wu, XIONG Zheng. 2010: GEOLOGICAL STRENGTH INDEX METHOD FOR ROCK MASS PARAMETERS ABOUT JINPING UNDERGROUND CAVERNS. JOURNAL OF ENGINEERING GEOLOGY, 18(6): 956-962.

Citation:

FAN Yongbo, REN Ai'wu, XIONG Zheng. 2010: GEOLOGICAL STRENGTH INDEX METHOD FOR ROCK MASS PARAMETERS ABOUT JINPING UNDERGROUND CAVERNS. JOURNAL OF ENGINEERING GEOLOGY, 18(6): 956-962.

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GEOLOGICAL STRENGTH INDEX METHOD FOR ROCK MASS PARAMETERS ABOUT JINPING UNDERGROUND CAVERNS

1.
Institute of MechanicsIMECH,Chinese Academy of Sciences,Beijing 100190;
2.
China Institute of Water Resources and Hydropower Research,Beijing 100038;
3.
Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029

Funds:

Received Date: 2010-01-08
Rev Recd Date: 2010-07-20
Publish Date: 2010-12-25

Abstract

Abstract

The study on rock mass parameters after the excavation is always the focus of the engineering.It is the basic work of the rock stability evaluation.This paper is based on the engineering of JinPing Underground Caverns.It classifies the engineering geological rock group about different stake Nos,re-classify the rock mass and evaluation of its quality. It uses the Geological Strength Index(GIS)method and introduces the the number of joint per cubic meter. It can make the evaluation system reasonable. At last the rock mass parameters can be found by regression method. It is found that the calculated values of the cohesion and Internal friction angle are similar to the recommended values.This method is relatively easy. It can provide reference for the selection of mechanical parameters of other underground excavation engineering with similar geological conditions.
- Mechanical parameters of rock mass,
- GSI,
- High geostress,
- Jingping,
- Underground cavern

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References(1)

References

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