水压致裂应力测量在广州抽水蓄能电站设计中的应用研究

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Abstract In the surrounding rocks of conveying water tunnel with inside higher water pressure at Guangzhou pump storage project, the erosion belts expanding intensely with water being are quite developed. But according to the results of hydraulic fracturing test and the minimum principal stress criterion，the steel liners of the high pressure conveying water tunnel and even at the branch section are all cancelled，and just supported by reinforced concrete liner with thickness of 60 cm. The power station has being operated smoothly for years，which shows that the designing of the project is quite reasonable.

Key words： hydraulic fracturing stress measurement high pressure conveying water tunnel underground chamber lining design

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/I06/828