基于静力触探+面波勘探技术的岩土体空间变异性表征方法研究  

Research on the Characterization Method of Spatial Variability of Rock and Soil Based on Static Cone Penetration and Surface Wave Exploration Technology

作　　者：郑乐坤 修云飞 谢江峰 ZHENG Lekun;XIU Yunfei;XIE Jiangfeng(Qingdao Ruiyuan Engineering Group Co.,Ltd.,Qingdao 266555,China;Shandong Ruizhi Flight Control Technology Co.,Ltd.,Qingdao 266555,China)

机构地区：[1]青岛瑞源工程集团有限公司,山东青岛266555 [2]山东瑞智飞控科技有限公司,山东青岛266555

出　　处：《中国厨卫》2024年第5期295-297,共3页Chinese Kitchen & Bathroom

摘　　要：文章利用静力触探+面波勘探技术来分析表征岩土空间的变异性,从而提高边坡的稳定性和准确性。首先,通过使用12个均匀分布的检波器进行多道面波测试,以获取二维剪切波速数据。然后,应用岩土体参数的概率化反演技术,将二维剖面数据矩阵化,并考虑隐变量之间的相关性。通过递归算法获得隐变量的分布方差,进而得到了岩土体参数的二维剖面。最后,构建高度精确的二维稳定性分析模型,考虑实测剪切波速反演数据的特性。研究结果显示,模型考虑了多种可能的滑面,其中最危险的滑面的安全系数为1.216。此外,应用岩土体参数概率化反演技术,发现摩擦角不确定性对稳定性的影响较小,因此推断边坡在自然状态下是安全的。This article uses static cone penetration and surface wave exploration techniques to analyze and characterize the variability of soil and rock space,thereby improving the stability and accuracy of slopes.Firstly,a multi-channel surface wave test was conducted using 12 uniformly distributed detectors to obtain two-dimensional shear wave velocity data.Then,the probabilistic inversion technique of rock and soil parameters is applied to matrix the two-dimensional profile data and consider the correlation between hidden variables.By using recursive algorithms to obtain the distribution variance of hidden variables,a two-dimensional profile of rock and soil parameters was obtained.Finally,a highly accurate two-dimensional stability analysis model is constructed,taking into account the characteristics of the measured shear wave velocity inversion data.The research results show that the model considers multiple possible sliding surfaces,with a safety factor of 1.216 for the most dangerous sliding surface.In addition,the application of probabilistic inversion technology for rock and soil parameters reveals that the uncertainty of friction angle has a relatively small impact on stability,thus inferring that the slope is safe in its natural state.

关 键 词：静力触探 面波勘探 岩土空间 变异性表征 

分 类 号：TU74[建筑科学—建筑技术科学]