声波测试法在判别地下厂房EDZ中的应用

徐光黎; 董家兴; 李志鹏; 宋胜武; 张世殊; 王金生

doi:10.3799/dqkx.2014.153

Volume 39 Issue 11

Nov. 2014

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Article Navigation > Earth Science > 2014 > 39(11): 1599-1606

Xu Guangli, Dong Jiaxing, Li Zhipeng, Song Shengwu, Zhang Shishu, Wang Jinsheng, 2014. EDZ Assessment for Underground Cavern by Acoustic Wave Method. Earth Science, 39(11): 1599-1606. doi: 10.3799/dqkx.2014.153

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Xu Guangli, Dong Jiaxing, Li Zhipeng, Song Shengwu, Zhang Shishu, Wang Jinsheng, 2014. EDZ Assessment for Underground Cavern by Acoustic Wave Method. Earth Science, 39(11): 1599-1606. doi: 10.3799/dqkx.2014.153

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EDZ Assessment for Underground Cavern by Acoustic Wave Method

doi: 10.3799/dqkx.2014.153

1.
Engineering Research Center of Rock Soil Drilling & Excavation and Protection of Ministry of Education, China University of Geosciences, Wuhan 430074, China
2.
Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China
3.
Chengdu Investigation, Desigu & Research Institute Co., LTD, Power China, Chengdu 610072, China

Received Date: 2013-11-15
Publish Date: 2014-11-01

Abstract

Abstract

Excavation Damaged Zone (EDZ) assessment is important for the design, execution and operation of modern underground engineering. However, it is very difficult to determine EDZ because of the complexity of lithology, geostress, excavation method, cavern size and shape, etc.. Based on its definition, EDZ is subdivided into excavation highly damaged zone (EHDZ), excavation slightly damaged zone (ESDZ) and basically undamaged zone in this paper. Acoustic wave velocity method is suggested to determine EDZ. The acoustic wave curves are classified into type Ⅰ, type Ⅱ and type Ⅲ. EHDZ and ESDZ can be qualitatively determined by characteristic points of acoustic wave curves. A damage factor D calculated by the acoustic wave velocities is adapted to quantitatively assess EDZ. It is found that the comprehensive method and index provide us a good assessment of EDZ for underground caverns.
- underground cavern,
- Excavation Damaged Zone,
- acoustic wave method,
- damage factor,
- geology engineering,

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References(26)

References

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EDZ Assessment for Underground Cavern by Acoustic Wave Method

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