| 锦屏一级水电站左岸卸荷拉裂松弛岩体灌浆加固研究 |
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| 引用本文： | 裴向军,黄润秋,李正兵,罗建林. 锦屏一级水电站左岸卸荷拉裂松弛岩体灌浆加固研究[J]. 岩石力学与工程学报, 2011, 30(2): 284-288 |
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| 作者姓名： | 裴向军 黄润秋 李正兵 罗建林 |
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| 作者单位： | (1. 成都理工大学 地质灾害防治与地质环境保护国家重点实验室，四川 成都 610059；2. 中国水利水电第七工程局有限公司，四川 成都 610034) |
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| 基金项目： | 国家自然科学基金，国家自然科学基金委员会、二滩水电开发有限公司雅砻江水电开发联合研究基金，成都理工大学地质灾害防治与地质环境保护国家重点实验室自由探索基金 |
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| 摘 要： | 针对强卸荷、松弛拉裂、强震损伤岩体灌浆加固工程中陡倾裂隙面浆液漏量大、加固效果差的技术难题，研发SJP–1型黏度时变型水泥–化学浆液(水灰比0.6)；探讨高分子外掺剂对水化硅酸钙生成速度的影响；提出水泥–化学浆液的溶剂化膜理论。研究结果表明：新型水泥–化学浆液可泵期30～90 min，初凝90～210 min，终凝130～290 min，后期强度高出普通水泥浆10%～20%。SJP–1型浆液可避免速凝水泥浆早期强度高、后期强度低的缺陷，并成功地应用于锦屏一级水电站卸荷拉裂岩体和汶川地震灾区损伤岩体的灌浆加固工程。
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| 关 键 词： | 岩石力学卸荷拉裂岩体SJP&ndash1型灌浆材料溶剂化膜灌浆加固 |
| 收稿时间： | 2010-10-09; |
RESEARCH ON GROUTING REINFORCEMENT OF UNLOADING FRACTURED LOOSE ROCK MASS IN LEFT BANK OF JINPING I HYDROPOWER STATION |
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| PEI Xiangjun,HUANG Runqiu,LI Zhengbing,LUO Jianlin. RESEARCH ON GROUTING REINFORCEMENT OF UNLOADING FRACTURED LOOSE ROCK MASS IN LEFT BANK OF JINPING I HYDROPOWER STATION[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(2): 284-288 |
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| Authors: | PEI Xiangjun HUANG Runqiu LI Zhengbing LUO Jianlin |
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| Affiliation: | (1. State Key Laboratory of Geo-hazards Prevention and Geo-environment Protection，Chengdu University of Technology，Chengdu，Sichuan 610059，China；2. Sinohydro Bureau 7th Co.，Ltd.，Chengdu，Sichuan 610034，China) |
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| Abstract: | Based on the technical problems of the grouting fluid flowing along the steep crack faces and the poor reinforcement effects in the grouting reinforcement projects for strong unloading,loose and damaged rock mass induced by the strong earthquake,the SJP-1 aging strengthening cement-chemical grout is developed. The effect of the high-molecular compound additive on the formation rate of calcium silicate hydrate is discussed;and a new theory of solvability film of cement-chemical grout is proposed. The experim... |
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| Keywords: | rock mechanics unloading fractured rock mass SJP-1 grouting material theory of solvability film grouting reinforcement |
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