3D激光扫描工艺与锦屏Ⅰ级水电工程右岸建基面绿片岩实测迹长分布研究
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摘要
锦屏Ⅰ级水电站右岸建基面发育有大量的绿片岩,它们是水电站建设中重大工程地质问题研究中需要注意的对象之一。为了研究它们的迹长分布规律,利用3D激光扫描工艺,对锦屏Ⅰ级水电工程右岸建基面高差50m范围内的绿片岩出露区域进行了扫描,获得了准确的绿片岩出露的迹长数据,从而使绿片岩迹长分布研究成为可能。研究发现,迹长数据样本最集中分布于0～3m的区间;随着迹长的增加,落在子区间内的条数(频数)递减;在0～9m的各个子区间内,样本呈正态分布。整体而言,实测迹长样本数据服从对数正态分布。
A number of green schist rocks developed on the right abutment of Jinping Ⅰ Hydropower Station.They are one of the important engineering geology problems for the stability of abutment.In order to study their trace length distribution,the technique of 3D laser scanning was applied.The zone of green schist outcrop was scanned with it.The elevation of scanned zone ranged form 1720 to 1670m,and fall is up to 50m,scanned area 3500m2.After the interpretation of points cloud for these green schist rocks,resulting trace length data were attained accurately,which provided the possibility to study the trace length distribution of green schist rocks.Based on study,it was found that trace length data mainly were grouped to the zone of 0 to 3m.With the growth of trace length,the number of trace length was getting less and less in every subinterval;in the range from 0 to 9m,samples showed Normal Distribution in every subinterval.As for all of samples,the trace length showed Logarithmic Normal Distribution.
A number of green schist rocks developed on the right abutment of Jinping Ⅰ Hydropower Station.They are one of the important engineering geology problems for the stability of abutment.In order to study their trace length distribution,the technique of 3D laser scanning was applied.The zone of green schist outcrop was scanned with it.The elevation of scanned zone ranged form 1720 to 1670m,and fall is up to 50m,scanned area 3500m2.After the interpretation of points cloud for these green schist rocks,resulting trace length data were attained accurately,which provided the possibility to study the trace length distribution of green schist rocks.Based on study,it was found that trace length data mainly were grouped to the zone of 0 to 3m.With the growth of trace length,the number of trace length was getting less and less in every subinterval;in the range from 0 to 9m,samples showed Normal Distribution in every subinterval.As for all of samples,the trace length showed Logarithmic Normal Distribution.
引文
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[13]Huang Runqiu,Dong Xiujun.Application of three-dimensional la-ser scanning and surveying in geological investigation of high rockslope[J].Journal of China University of Geosciences,2008,19(2):184～190.
[14]孙瑜,严明,覃秀玲.HDS4500三维激光扫描仪的地质工程应用[J].河北工程大学学报(自然科学版),2008,25(4):86～88.Sun Yu,Yan Ming,Qin Xiuling.Study on geological engineeringapplication of leica HDS4500 three-dimensional laser scanner.Journal of Hebei University of Engineering(Natural Science Edi-tion),2008,25(4):86～88.
[15]张文丽.裂隙迹长非确定性统计模型的应用研究[D].成都:成都理工大学,2007.Zhang Wenli.Application Research of Uncertain Statistic Modelfor Discontinuities Trace Length.Chengdu:Chengdu University ofTechnology,2007.
[16]陈剑平.K-S检验假设分布有效性的工程地质应用[A],见:全国五届工程地质大会文集[C].北京:地震出版社,1996,560～563.Chen Jianping.Effect of K-S hypothesis testing on hypothesis dis-tribution and engineering geology application,Proceedings of the5th China Engineering Geologic Conference.Beijing:SeismicPress,1996,560～563.
[2]郭海庆.复杂混凝土坝坝基对坝体结构行为影响的分析理论和方法研究[D].南京:河海大学水利水电工程学院,2002.Guo Haiqing.Study on the Analysis Theroy and Method of the In-fluence of Comples Concree DamBase to the Structure Behaviors ofDam Body.Nanjing:College of Water Conservancy and Hydropow-er Engineering,Hohai University,2002.
[3]任自民,马代馨,沈泰,田野.三峡工程坝基岩体工程研究[M].武汉:中国地质大学出版社,1998.Ren Zimin,Ma Daixin,Shen Tai,Tian Ye.Rock Engineering ofThree Gorge Dam Base.Wuhan:China University of GeosciencesPress,1998.
[4]黄焱波.锦屏一级水电站大坝右岸建基岩体质量复核研究[D].成都:成都理工大学,2009.Huang Yanbo.Study of Foundation Rock Mass Quality Checking onthe Right Bank of Jinping I Hydropower Station.Chengdu:Cheng-du University of Technology,2009.
[5]黄润秋,陈剑平,胡卸文,范留明.复杂岩体结构精细描述及其工程应用[M].北京:科学出版社,2004.Huang Runqiu,Chen Jianping,Hu Xiewen,Fan Liuming.AccurateDescript of Complex Rock Mass Structure and Engineering Appli-cations.Beiing:Science Press,2004.
[6]黄达,黄润秋,陈强,张敏,蒋良潍.基体裂隙实测全迹长分布规律研究[J].水文地质工程地质,2005,(4):10～12.Huang Da,Huang Runqiu,Chen Qiang,Zhang Min,Jiang Liang-wei.Study on distribution laws of observation full-trace length ofbasal joints.Hydrogeology and Engineering Geology,2005,(4):10～12.
[7]Abellón A,Martínez J,Vilaplana J M.Application of a long-rangeterrestrial laser scanner to a detailed rockfall study at Vall de Núria(Eastern Pyrenees,Spain)[J].Engineering Geology,2006,88(3):136～148.
[8]Singh S,West J.Cyclone.A laser scanner for mobile robot naviga-tion[R].Carnegie Mellon University,Robotics Institute,CMU-RI-TR-91-18,1991.
[9]Hancock J,Langer D,Hebert M,et al.Active laser radar for high-performance measurements[C].Proceedings of the 1998 IEEE In-ternational Conference on Robotics and Automation,1998 May 16-20,Leuven,Belgium.2:1465～1470.
[10]谢瑞,胡敏捷,程效军,张京男,周适.三维激光HDS3000扫描仪点位精度分析与研究[J].遥感信息,2008,(6):53～57.Xie Rui,Hu Minjie,Cheng Xiaojun,Zhang Jingnan,Zhou Shi.Study on point precision of 3D laser scanning based onHDS3000.Remote Sensing Information,2008,(6):53～57.
[11]董秀军,黄润秋.三维激光扫描测量在汶川地震后都汶公路快速抢通中的应用[J].工程地质学报,2008,16(6):774～779.Dong Xiujun,Huang Runqiu.Application of 3D laser scanner inmaking duwen road travelable in short termafter Wenchuan earth-quake.Journal of Egnineering Geology,2008,16(6):774～779.
[12]徐进军,严学清,王尚庆,王国栋.地面激光扫描与数码相机数据的联合处理研究[J].武汉大学学报(信息科学版),2009,34(1):85～87.Xu Jinjun,Yan Xueqing,Wang Shangqing,Wang Guodong.Studyof fusion with digital Image and scanning data.Geomatics and In-formation Science of Wuhan University,2009,34(1):85～87.
[13]Huang Runqiu,Dong Xiujun.Application of three-dimensional la-ser scanning and surveying in geological investigation of high rockslope[J].Journal of China University of Geosciences,2008,19(2):184～190.
[14]孙瑜,严明,覃秀玲.HDS4500三维激光扫描仪的地质工程应用[J].河北工程大学学报(自然科学版),2008,25(4):86～88.Sun Yu,Yan Ming,Qin Xiuling.Study on geological engineeringapplication of leica HDS4500 three-dimensional laser scanner.Journal of Hebei University of Engineering(Natural Science Edi-tion),2008,25(4):86～88.
[15]张文丽.裂隙迹长非确定性统计模型的应用研究[D].成都:成都理工大学,2007.Zhang Wenli.Application Research of Uncertain Statistic Modelfor Discontinuities Trace Length.Chengdu:Chengdu University ofTechnology,2007.
[16]陈剑平.K-S检验假设分布有效性的工程地质应用[A],见:全国五届工程地质大会文集[C].北京:地震出版社,1996,560～563.Chen Jianping.Effect of K-S hypothesis testing on hypothesis dis-tribution and engineering geology application,Proceedings of the5th China Engineering Geologic Conference.Beijing:SeismicPress,1996,560～563.
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