李启源, 王明常, 王凤艳, 胡瀚, 徐则双. 2017: 窗口尺度对H-H连通率估计模型的影响. 工程地质学报, 25(s1): 24-28. DOI: 10.13544/j.cnki.jeg.2017.s1.004
    引用本文: 李启源, 王明常, 王凤艳, 胡瀚, 徐则双. 2017: 窗口尺度对H-H连通率估计模型的影响. 工程地质学报, 25(s1): 24-28. DOI: 10.13544/j.cnki.jeg.2017.s1.004
    LI Qiyuan, WANG Mingchang, WANG Fengyan, HU Han, XU Zeshuang. 2017: INFLUENCE OF WINDOW SIZE ON H-H CONNECTIVITY ESTIMA-TION MODEL. JOURNAL OF ENGINEERING GEOLOGY, 25(s1): 24-28. DOI: 10.13544/j.cnki.jeg.2017.s1.004
    Citation: LI Qiyuan, WANG Mingchang, WANG Fengyan, HU Han, XU Zeshuang. 2017: INFLUENCE OF WINDOW SIZE ON H-H CONNECTIVITY ESTIMA-TION MODEL. JOURNAL OF ENGINEERING GEOLOGY, 25(s1): 24-28. DOI: 10.13544/j.cnki.jeg.2017.s1.004

    窗口尺度对H-H连通率估计模型的影响

    INFLUENCE OF WINDOW SIZE ON H-H CONNECTIVITY ESTIMA-TION MODEL

    • 摘要: 连通率能够反映裂隙在岩体中的贯穿程度,是边坡稳定性评价的关键参数之一,对工程地质灾害防治工作有着重大意义。H-H连通率估计模型基于H-H迹长估计模型原理,并将其拓展至锁固段长度计算中。H-H估计模型属于矩形窗口法,用窗口法进行迹长估计时估计结果会受到窗口尺度的影响,将该方法延伸至连通率计算时也应该考虑窗口尺度的影响。实验区为长春市净月经济开发区东升采石场,利用数字近景摄影测量技术获取边坡结构面几何信息,设定窗口长度为边坡固有长度,分别设置窗口高度为1m、2m、3m、5m、8m、10m、15m、20m、30m;9个尺度计算连通率,计算结果分别为0.57、0.35、0.21、0.16、0.10、0.09、0.06、0.05、0.03。结果表明随着窗口高度增加,计算结果逐渐减小,窗口尺度对该模型计算结果有显著影响。

       

      Abstract: Connectivity can reflect the penetration of fractures in rock mass, and is one of the key parameters of slope stability evaluation. It is of great significance to the prevention and control of engineering geological disasters. H-H connectivity estimation model is based on the principle of H-H trace length estimation model, and is extended to the calculation of lock length. The H-H estimation model belongs to the rectangular window method. When the trace length is estimated by the window method, the results will be affected by the window scale. When the method is extended to the connection rate calculation, the influence of the window scale should be taken into account. Experimentation area is Changchun Jingyue Economic Development Zone Dongsheng quarry, obtain the slope geometry information using digital photogrammetry technology, set the window length of slope inherent length, respectively set the window height is 1, 2, 3, 5, 8, 10, 15, 20, 30meters 9 scale to calculate the connectivity rate, the calculated results were 0.57, 0.35, 0.21, 0.16, 0.10, 0.09, 0.06, 0.05, 0.03 respectively. The results show that with the increase of the window height, the calculation results are reduced gradually, and the window scale has a significant influence on the calculation results.

       

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