| 高陡岩质斜坡的结构面非接触式采集技术与三维裂隙网络模拟研究 |
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| 引用本文： | 张文,韩博,孙昊林,陈浚淇,王硕男,孙琦,尹韩.高陡岩质斜坡的结构面非接触式采集技术与三维裂隙网络模拟研究[J].工程地质学报(英文版),2020,28(2):221-231. |
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| 作者姓名： | 张文 韩博 孙昊林 陈浚淇 王硕男 孙琦 尹韩 |
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| 作者单位： | 吉林大学建设工程学院，长春 130012，中国 |
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| 基金项目： | 国家自然科学基金面上项目3A418BA04424 |
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| 摘 要： | 本文分别以非接触式测量与三维裂隙网络模拟技术对汶川县绵虒镇大溪沟沟口高陡斜坡的结构面系统进行了深入研究。以无人机、数字近景摄影测量与三维激光扫描方法建立了现场斜坡的三维DEM模型并识别与解译了斜坡的结构面系统。尤其是采用无人机与近景摄影测量技术,识别并解译了整体斜坡的长大控制性结构面与坡面上的6663条随机构造结构面。基于以上数据,本文提出了一种适用于高陡斜坡分析的超大窗口三维裂隙网络模拟方法,采用概率统计与空间几何推导的方法,建立了岩体三维结构面的直径、产状与密度计算方法。这种方法更加简便且针对性强,现场验证也表明其具有较高的模拟精度。
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| 关 键 词： | 高陡斜坡 非接触式采集 三维裂隙网络模拟 岩体分析 |
| 收稿时间： | 2019-12-30 |
NON-CONTACT COLLECTION AND 3D FRACTURE NETWORK MODELLING FOR HIGH-STEEP ROCK SLOPES |
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| ZHANG Wen,HAN Bo,SUN Haolin,CHEN Junqi,WANG Shuonan,SUN Qi,YIN Han.NON-CONTACT COLLECTION AND 3D FRACTURE NETWORK MODELLING FOR HIGH-STEEP ROCK SLOPES[J].Journal of Engineering Geology,2020,28(2):221-231. |
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| Authors: | ZHANG Wen HAN Bo SUN Haolin CHEN Junqi WANG Shuonan SUN Qi YIN Han |
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| Institution: | Construction Engineering College, Jilin University, Changchun 130012, China |
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| Abstract: | This paper applies non-contact acquisition techniques and 3D fracture network modelling to study the discontinuities of high-steep slope located in Miansi Town, Wenchuan County. UAV, 3D laser scanning, and Close Range Photogrammetry are used to generate 3D DEM model and to recognize and interpret discontinuities. Especially, UAV and Close Range Photogrammetry are applied to recognize and interpret controlling large discontinuities and 6663 stochastic structural fractures. Based on the collected data, this paper propose a 3D fracture network modelling method that fits for large sampling windows of high-steep slopes. Stochastic mathematics and spatial geometric derivation methods are used to determine the diameter, orientation, and density of 3D fractures. This method is much easier and to the point, as well as has a higher accuracy according to field verification. |
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| Keywords: | High steep slope Non-contact discontinuity collection 3D fracture network modelling Rock mass analysis |
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