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| OPTIMAZATION OF REICNFORING SCHEME FOR UNDERGROUND POWER HOUSE OF SHUIBUYA PROJECT ON QINJANG RIVER |
| Zhu Weishen1 Chen Weizhong2 Li Shucai1 SunJin2 |
| (1Shandong University , Jinan, 250061) (2Institute of Rock and soil Mechanics, Wuhan 430071) |
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Abstract This paper described the optimazation analysis of reinforcing scheme for underground power house of Shuibuya Project. In 2D analysis the comparison of rock condition for case nonreinforcement and case with reinforcement has been made, and of rock condition for different initial stress has been made as well. Three different schemes for systematical rock bolts were compared. In 3D analysis the comparison of reinforcing effect for 3 schemes of prestress cable with different tonnage has been conducted. Some relevant conclusions were given finally.
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Received: 31 March 2003
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1. 朱维申,李术才,陈卫忠等。地下厂房锚固方案优化的二维和三维非线性有限元分析(分报告之四)。清江水布垭枢纽地下厂房洞室群施工开挖与支护的优化方案分析及稳定性研究报告。中国科学院武汉岩土力学研究所,2002年4月。
表6 若干特征点位移值比较
Table. 6 Comparison of displacement for some key points cm
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工况
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1#点z方向
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4#点x方向
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5#点z方向
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数值
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减少(%)
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数值
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减少(%)
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数值
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减少(%)
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无锚索
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-0.89
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0.84
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-1.09
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120吨锚索
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-0.79
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11.2
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0.70
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16.7
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-0.90
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17.4
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150吨锚索
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-0.80
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10.1
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0.64
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23.8
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-0.86
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21.1
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200吨锚索
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-0.76
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14.6
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0.63
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25.0
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-0.85
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22.0
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2. 邬爱清,周火明等。地下厂房区围岩力学参数选取的优化研究(分报告之一)。清江水布垭枢纽地下厂房洞室群施工开挖与支护的优化方案分析及稳定性研
报告。长江科学院,2002年4月。
3.朱维申,李术才,陈卫忠,节理岩体破坏机理和锚固效应及工程应用。科学出版社,北京,2002年。
4.李术才、王书法、朱维申,三峡右岸地下电站窑洞口围岩稳定性三维断裂损伤分析。岩石力学与工程学报,2001,20(5):685~689
5. 邬爱清,徐平,徐春敏等,三峡工程地下厂房围岩稳定性研究,岩石力学与工程学报,2001,20(5):690~695
6.李世辉,吴向阳,尚彦军,地下工程半经验半理论设计方法的理论基础,岩石力学与工程学报,2002,
7.朱维申、李术才,程峰。能量耗散模型在大型地下洞群施工顺序优化分析中的应用。岩土工程学报。Vo1.20,No.3, 200121(3):299~304
8.朱维申,李术才,弹塑性损伤岩锚支护模型和地下洞群稳定性分析及施工顺序优化。第六次全国岩石力学与工程学术大会论文集。中国科学技术出版社。2000年,36~39。
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KANG Hongpu1, 2, 3*, GAO Fuqiang1, 2, 3, WANG Xiaoqing1, 2, 3, YUAN Guiyang1, 2, 3, YANG Lei1, 2, 3, LOU Jinfu1, 2, 3. Development and application of a large-scale experimental system for roadway rockburst induced by fault slip[J]. , 2026, 45(6): 1599-1614. |
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