| 浅谈数字填图系统背景图层的参数调整技巧与方法 |
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| 引用本文： | 徐 磊,孙 羽,李永军,向坤鹏.浅谈数字填图系统背景图层的参数调整技巧与方法[J].甘肃地质学报,2013,22(1):81-85. |
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| 作者姓名： | 徐 磊 孙 羽 李永军 向坤鹏 |
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| 作者单位： | 甘肃省科学院地质自然灾害防治研究所 |
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| 基金项目： | 甘肃省科技支撑计划,编号:1204FKCA153 |
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| 摘 要： | 2011年11月4日,甘肃省陇南市白水江支流中路河某水电站引水隧洞出口段发生中型破碎岩石滑坡,体积23×104m3,破坏引水隧洞50m、前池、压力管道、35kV输电线路等,潜在威胁发电厂房、学校、道路。山坡地形高陡、组成岩性软弱、风化破碎是滑坡发生的地质基础;山坡内引水隧洞开挖、近50m隧洞发生强烈冒顶陷落,使坡脚抗滑支撑能力减弱是该滑坡发生的主要引发因素;地震和降水对其也有一定影响。该滑坡体稳定性差,还可能大规模复活滑动,危害严重,建议采取框架锚索、排水等措施综合治理。
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| 关 键 词： | 滑坡 冒顶 陷落 水电站 引水隧洞 |
LANDSLIDE HAZARD CAUSED BY SUBSIDENCE IN THE ROOF FALL ACCIDENT OF A TUNNEL |
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| XU Lei,SUN Yu,LI Yong-jun and XIANG Kun-peng.LANDSLIDE HAZARD CAUSED BY SUBSIDENCE IN THE ROOF FALL ACCIDENT OF A TUNNEL[J].Acta Geologica Gansu,2013,22(1):81-85. |
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| Authors: | XU Lei SUN Yu LI Yong-jun and XIANG Kun-peng |
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| Affiliation: | WU Wei-jiang(Geological Hazards Institute,Gansu Academy of Sciences,Lanzhou 730000,China) |
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| Abstract: | The Geological Survey mapping of RGMAP based on 3S digital technology has already realized the informatization through the process of regional geological mapping, but it is the premise to adjust correctly parameters of background layer before carrying out field survey. The paper provide some methods and skills to solve such phenomenon as non-standard parameters of background layer, ununiform scale, displaying problem after importing data of route and transection. |
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