中文摘要：

采用水压致裂测量地应力方法，测得了黔西地区36层煤的地应力分布。研究结果表明：黔西六盘水煤田和织纳煤田分别属于中高地应力值区域和中地应力区域，构造应力占绝对优势，最大水平主应力方向近SE—NW方向为主；主应力均随煤层埋深增大而增高，地应力场分别在600，750和1 000 m左右发生转变，为大地动力场型—准静水压力场—大地静力场型—准静水压力场。受印度板块向北碰撞欧亚大陆的影响，研究区处于挤压的区域高地应力背景之下，盖层构造受“X型”交叉断裂控制形成的菱形构造和三角形构造等次级断块，产生不同的块内应力组合形式，形成现今地应力场的区域差异分布状态。

英文摘要：

The distribution of mainable coal seams of NO.36 in Western Guizhou was obtained by hydraulic fracturing method to measure in-situ stress. The result shows that Liupanshui and Zhina coal field respectively belong to the high-middle stress area and middle stress area. The horizontal tectonic stress dominates absolutely, and the primary horizontal stress mainly aligns with north-west. It is also noticed that principal stresses all increase following a linear relationship as coal seam burial depth increases. The type of stress field transforms with 600, 750 and 1 000 m in depth, and it manifests as dynamic stress field, quasi static stress field, geostatic stress field and quasi static stress field with the increase of depth. The studied area is in high stress background of extrusion influenced by collision of North India plate and Eurasia. The structure of sedimentary cover is controlled by fracture of “X” type, and some secondary fault block is formed, such as echelon structure and triangle structure. So, different combining forms of stress in fault block emerge, and the regional difference of the stress field distribution is displayed.