图  1  贵州纳雍张家湾镇普洒村崩塌区地貌特征

Figure  1.  Geomorphic characteristics of the collapse area in Pusa village, Zhangjiawan, Nayong, Guizhou Province

图  2  贵州纳雍崩塌工程地质剖面图

1—灰岩；2—泥灰岩；3—泥质粉砂岩；4—粉砂质泥岩；5—煤层；6—采空区；7—深大裂隙；8—断层；9—下三叠统夜郎组二段；10—下三叠统夜郎组一段；11—上二叠统长兴组+大隆组；12—上二叠统龙潭组

Figure  2.  Engineering geological profile of the Nayong collapse in Guizhou Province

图  3  山体岩溶管道

Figure  3.  Schematic diagram of the karst slope pipeline

图  4  崩塌体后缘岩溶裂隙

Figure  4.  Schematic diagram of the karst fissure at the trailing edge of the collapse

图  5  崩塌体后缘山顶岩溶塌陷坑

Figure  5.  Karst collapse pit at the top of the trailing edge of the collapse

图  6  崩塌后坡体壁面

Figure  6.  Wall surface of the slope after the collapse

图  7  崩塌后坡体后缘裂隙

LD—拉陷槽；LX—拉裂缝

Figure  7.  Schematic diagram of cracks at the trailing edge of the slope after the collapse

图  8  岩体被节理切割形成块体

Figure  8.  Blocks formed after being cut by joints

图  9  普洒滑坡二维概化计算模型

Figure  9.  Two-dimensional generalized calculation model of the Pusa landslide

图  10  煤层开挖顺序图

Figure  10.  Sequence diagram of the coal seam excavation

图  11  普洒崩滑采空下竖向位移云图

Figure  11.  Cloud chart of the vertical displacements under the goaf of the Pusa landslide

图  12  坡表监测点水平和垂直位移曲线图(监测点位置见图 9)

Figure  12.  Horizontal and vertical displacement curves of the monitoring points on the slope surface (Positions of the monitoring points are shown in Fig. 9

图  13  M10-1工作面上覆岩层监测点水平和垂直位移曲线图(监测点位置见图 9)

Figure  13.  Horizontal and vertical displacement curves of the overburden strata monitoring points on the working face M10-1 (Positions of the monitoring points are shown in Fig. 9)

图  14  煤层上覆岩层垮落示意图

Figure  14.  Schematic diagram of the overburden collapse in the coal seam

图  15  煤层上覆岩体裂隙带高度时空演化图

Figure  15.  Spatial and temporal evolution of the fracture zone height of the overburden rock mass in the coal seam

图  16  坡体上部裂隙发育示意图

Figure  16.  Sketch map of the fracture development in the upper part of the slope

图  17  坡体变形破坏示意图

Figure  17.  Diagram of the slope deformation and failure