The Tianjiaba landslide on the Hang Rui expressway was located in the south of Sinan County, Tongren City, Guizhou Province. From the night of 2 July to the morning of 3 July 2011, numerous house cracks, foundation subsidence, and surface cracks suddenly occurred in the Tudiwan and Tianjiaba villages on the north and south sides of the management area. Based on the field geological survey, drilling, pit exploration, surface displacement, fracture observation, and deep displacement monitoring data analysis the deformation characteristics and causes of the Tianjiaba landslide were comprehensively analyzed. In this study, the landslide was divided into three areas, in which fracture group 3 was the most severe. Among the ten inclinometer holes, the sliding surface displacement of No.8 inclinometer hole was the largest, i.e., 25 mm. The sliding surface slopes of fracture groups 1, 2, and 3 were small, i.e., 12.25°, 4.97° and 6.62° to 4.64°, respectively. The results showed that the displacement values of different positions of the landslide were different, and the ground displacement value was larger than the sliding surface displacement value. The maximum displacement of the ground was 242.68 mm, which is larger than the maximum displacement of the inclinometer hole. Because the displacement of the upper part was greater than that of the lower part, bulging cracks formed in the lower part of the landslide. When the displacement of the upper part was less than that of the lower part, tension cracks formed in the lower part of the landslide. According to the surface cracks and displacement values of inclinometer holes on the sliding surface, the landslide was in the initial sliding stage and filling the platform of the management area on the hillside was the main cause of the landslide.

中文翻译：

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附加费引起的田家坝滑坡变形特征

杭瑞高速公路上的田家坝滑坡位于贵州省铜仁市思南县南部。从2011年7月2日晚上到7月3日早晨，管理区南北两侧的土堤湾和田家坝村突然发生了许多房屋裂缝，地基沉陷和表面裂缝。在野外地质调查，钻井，基坑勘探，地表位移，裂缝观测和深层位移监测数据分析的基础上，对田家坝滑坡的变形特征和成因进行了综合分析。在这项研究中，滑坡被分为三个区域，其中第3组裂缝最为严重。在10个测斜孔中，第8号测斜孔的滑动表面位移最大，即25 mm。裂缝组1、2和3的滑动面斜率较小，分别为12.25°，4.97°和6.62°至4.64°。结果表明，滑坡不同位置的位移值不同，地面位移值大于滑动面位移值。地面的最大位移为242.68 mm，大于测斜仪孔的最大位移。因为上部的位移大于下部的位移，所以在滑坡的下部形成了鼓胀的裂缝。当上部的位移小于下部的位移时，在滑坡的下部形成张力裂缝。根据表面裂纹和测斜仪孔在位移面上的位移值，