Parameters Selection of High Pressure Consolidation Grouting for Xiaowan Resisting Force Rockmass

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After substituting with ordinary Portland cement for geological defaults in resistance rock-masses of the dam abutments in Xiaowan hydroelectric station, it was necessary to make unsubstituted sections be reinforced by means of high pressure consolidation grouting. So it was before grouting and reinforcing that several productive experiments on high pressure consolidation grouting were carried out in the representatively and typically geological sections chosen in situ. Results indicated that desired effects for geological defaults in the dam abutments could be gotten after grouting when the distances to orifice and grouting pressures were 2m, 3m, 5~7m and 3.0MPa, 5.0MPa, 5.0MPa on the first section, the second one and the following ones of the orifice, respectively. And the grouting manners which were orifice enclosed and grout cycled in holes were adopted. Eventually, all of the grouting parameters could be used in much larger districts in projects to consolidate better.

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2553-2558

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September 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] LU Yuan- hai FANG Wei. Consolidation grouting features of dam foundation and construction quality control for Xiaowan hydropower project. Northwest Hydropower. 2008. No.1. P33~37.

Google Scholar

[2] QI Shengwen,WU Faquan,ZHUANG Huaze,LIU Tong,YAN Changgen,CHAI Jianfeng. CHARACTERISTICS OF UNLOADING FISSURES IN DAM'S BASE OF XIAOWAN HYDROPOWER STATION. Chinese Journal of Rock Mechanics and Engineering. June,2008. Vol.27 Supp.1. P2907~2912.

Google Scholar

[3] LI Chao-zheng, SHEN Rong, LI Wei, LIAO Jian-jun, SU Zhi-guang. Research on shear resistance of dam foundation unloading rockmass of Xiaowan Hydropower Station. Rock and Soil Mechanics. Nov. 2008. Vol.29 Supp. P485~490.

Google Scholar

[4] ZHANG Xue-jing, ZHANG Jian-hai, WU Shu-wei. Check analysis of dam base's stability of Xiaowan arch dam. Rock and Soil Mechanics. Nov. 2008. Vol.28 Supp. P609~612.

Google Scholar

[5] WU Xingling, ZHANG Yunjin, L IN Yue, LUO Song, ZHOU Yongsheng. ANALYSI S OF CIRCULATIONS FEATURES DUR ING THE SEVERE COLD,I CE-SNOWAND FROZEN DISASTERS IN ZHAOTONG IN 2008. YUNNAN GEOGRAPHIC ENVIRONMENT RESEARCH. Vol.20, No.5. Sep, 2008.

Google Scholar