| 龙滩水电站地下厂房开挖技术 |
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| 引用本文： | 李善忠,杨天吉,曾浩. 龙滩水电站地下厂房开挖技术[J]. 水力发电, 2005, 31(4): 57-59 |
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| 作者姓名： | 李善忠 杨天吉 曾浩 |
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| 作者单位： | 龙滩水电开发有限公司,广西,南宁,530023;中国水利水电第十四工程局,云南,大理,650041 |
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| 摘 要： | 龙滩水电站左岸地下厂房规模大，与之相贯通的洞室较多，与其平行布置的主变洞、尾水调压井之间的岩柱较薄，工程地质条件复杂，开挖过程中围岩稳定及快速施工问题是难点和重点。为此，龙滩水电站根据其特点，采用了“平面多工序”、“立面多层次”、“先洞后墙”，以及设置预裂缝、预留保护层、浅孔小药量爆破等技术措施，较好地完成了地下厂房的开挖与支护。
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| 关 键 词： | 地下厂房 开挖技术 龙滩水电站 |
| 文章编号： | 0559-9342(2005)04-0057-03 |
Summary on excavation technology about underground powerhouse of Longtan Hydropower Station |
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| LI Shan-Zhong,Yang Tian-ji,Zeng Hao. Summary on excavation technology about underground powerhouse of Longtan Hydropower Station[J]. Water Power, 2005, 31(4): 57-59 |
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| Authors: | LI Shan-Zhong Yang Tian-ji Zeng Hao |
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| Affiliation: | Li Shan-zhong1,Yang Tian-ji2,Zeng Hao1 |
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| Abstract: | The underground powerhouse of Longtan Hydropower Station is the largest in the world at present and there are many caverns connected with it. Rock stratums in main transform cavern and surge tank, which are parallel with main powerhouse, are lighter, thus the geologic conditions of project are complicated. The difficult and focal points are how to solve rock stability and construct quickly. This paper expounds the construction methods, orders and surrounding rock monitoring, furthermore, it provides some experience and reference for the similar projects. |
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| Keywords: | underground powerhouse excavation technology Longtan Hydropower Station |
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