重庆奉溪高速邱家大桥滑坡基本特征及稳定性分析

邱家大桥滑坡为一老滑坡，是澜湾子古滑坡群滑动分解后的一部分，后又发育有一次级滑坡，位于老滑坡滑体中部。邱家大桥滑坡规模较大，受连续降雨及施工扰动等外界因素的不断影响，邱家大桥施工完成后，滑坡一直处于缓慢变形中。通过现场调查、钻孔监测等途径掌握滑坡变形破坏的基本特征，并对其进行稳定性现状和发展趋势的分析预测，为滑坡治理提供可靠依据。

The basic characteristics and stability analysis of Qiujia bridge landslide in Fen-Xi highway Chongqing

Qiujia bridge landslide is an ancient landslide ,which decomposed from the ancient landslide group named Lanwanzi ,and then it developed a new landslide in the middle of the old landslide sliding body .The scale of Qiujia bridge landslide is larger .After completion of construction ,landslide has been in slow de‐formation by the influence of external factors such as continuous rainfall and the construction disturbance . The basic characteristics of landslide deformation and failure are mastered through site investigation ,drill‐ing monitoring ,and landslide is effective treated depending on the results of stability of status and develop‐ment trend forecast .