豫西某在建高速公路滑坡综合勘察设计研究  

Research on Comprehensive Survey and Design of Landslide on a Highway Under Construction in Western Henan

作　　者：杨力龙 周向向 王亚奇 郭永祥 杨振辉 YANG Lilong;ZHOU Xiangxiang;WANG Yaqi;GUO Yongxiang;YANG Zhenhui(Henan Zhonggong Design&Research Group Co.,Ltd.,Zhegnzhou 450052,China)

机构地区：[1]河南省中工设计研究院集团股份有限公司,河南郑州450052

出　　处：《河南科技》2024年第17期56-60,共5页Henan Science and Technology

摘　　要：【目的】豫西山岭重丘区由于地形地质复杂,高填深挖多,在建设高速公路过程中对原地形的扰动较大,易引发工程滑坡,采取何种方法准确查明滑坡特征是滑坡勘察中的难点,也制约着滑坡治理方案的确定。【方法】针对豫西某在建高速公路大型深层土质滑坡,通过低空航拍三维实景建模、地表调查监测、地下钻探、物探、测斜、试验等多种勘探方法进行滑坡勘察,准确查明滑坡的范围、剪出口、覆盖层厚度、物质组成、后缘裂缝及滑面(带)特征,并通过表层、深层位移监测方法进行滑面校核及稳定性监测。【结果】综合确定滑面(带)抗剪强度参数,定量计算滑坡剩余下滑力。【结论】研究成果可为滑坡治理方案设计提供参考。[Purposes]Due to the complex terrain and geology,high embankments and deep excavations,the construction of the expressway in the mountainous area of western Henan Province has caused signifi-cant disturbance to the original topography,and is prone to engineering landslides.It is difficult to accu-rately identify landslide characteristics,which hinders the determination of landslide control solutions.[Methods]This article focuses on the investigation of a large deep-seated soil landslide on an express-way under construction in western Henan Province,using multiple exploration methods such as low-altitude aerial photogrammetry,three-dimensional real scene modeling,surface investigation and moni-toring,underground drilling,geophysical exploration,inclinometer monitoring,and testing.The scope of the landslide,shear zone,thickness of the cover layer,material composition,rear crack,and sliding sur-face(band)characteristics were accurately determined.The sliding surface check and stability monitor-ing are carried out by surface and deep displacement monitoring methods.[Findings]The shear strength parameters of the sliding surface(band)were comprehensively determined and the residual sliding force of the landslide was quantitatively calculated.[Conclusions]The results can provide reference for the design of landslide control scheme.

关 键 词：豫西山区高速 滑坡勘察 三维实景建模 深层位移监测 滑面(带)特征 

分 类 号：U213.1[交通运输工程—道路与铁道工程]