| 漫湾水电站工程地下厂房岩壁吊车梁开挖施工技术 |
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| 引用本文： | 丁宗海,张建均.漫湾水电站工程地下厂房岩壁吊车梁开挖施工技术[J].湖北水力发电,2009(2). |
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| 作者姓名： | 丁宗海 张建均 |
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| 作者单位： | 葛洲坝集团公司漫湾二期工程项目部,云南,云县,675805
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| 摘 要： | 漫湾二期工程地下厂房岩壁吊车梁地质条件差,开挖中首先沿保护层深孔预裂,然后进行中部抽槽和保护层开挖,最后钻垂直孔和斜孔。为保证岩台质量,采取了对预留保护层分区开挖、在斜台下部增加锁口锚杆、树样架等措施,岩壁吊车梁施工的结果良好。
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| 关 键 词： | 漫湾二期工程 地下厂房 岩壁吊车梁 开挖 |
Excavation of anchored rock runway in underground powerhouse of Manwan Hydropower Station |
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| DING Zonghai,ZHANG Jianjun.Excavation of anchored rock runway in underground powerhouse of Manwan Hydropower Station[J].Hubei Water Power,2009(2). |
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| Authors: | DING Zonghai ZHANG Jianjun |
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| Affiliation: | DING Zonghai; ZHANG Jianjun(Manwan Hydroproject Phase-ⅡDept.of China Gezhouba Group Corp.; Yunxian 675805; China); |
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| Abstract: | Owing to the rock integrality is relatively poor,the excavation work of the anchored rock runway of bridge crane is carried out step by step.Firsly,pre-splitting in deep holes along the protective layer.Then,cutting the intermediate blocks and excavating the protective layer section by section.At last,drilling the vertical and inclined blasting holes.The lock anchor bars and the aligning racks are set up under the oblique stage of the runway to ensure the excavation work good result. |
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| Keywords: | Manwan Hydroproject Phase-Ⅱ underground powerhouse anchored rock runway excavation |
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