圆井-导洞型探井在滑坡勘查中应用探讨

Round Hole-pilot Tunnel's Exploratory Well's Application in the Exploration of Landslide

为了在不扰动滑坡结构稳定性的情况下更准确地揭示滑坡中滑带及滑体、滑床的岩土组成与结构特征及物理力学性质,在滑坡勘查中,往往用探井来采集土样并进行现场大剪切试验。目前,现场大剪切试验使用的大截面矩形探井,存在工程量大、安全性低等缺点,本论文结合工程中常用的矩形探井与圆形探井的优缺点分析,提出圆井-导洞型探井,并结合实例从经济性和安全性等方面与矩形探井分析比较,结果表明,该方法应用于实际更具优越性。

In some engineering landslide,to observe the rock and soil composition and structure characteristics of the landslide,sliding zone,sliding bed,and use wells to sample the undisturbed soil and make large shear test truly,so as to make the digging well has been applied to. We offen use large cross section rectangular wells,but the rectangular wells has some disadvantages such as the large engineering and low security. This thesis combines the advantages and disadvantages of the rectangular and circular wells in Engineering. Raising round hole-pilot tunnel＇s exploratory well,combined with examples to compare with the rectangular wells from the economic and security.