中文摘要：

目前地应力测量方法有很多种，可分为力学法、地球物理法及地质构造信息法等。在分析各种测量方法特点的基础上，介绍适用于深部煤矿巷道的地应力快速测量方法——小孔径水压致裂地应力测量法，包括小孔径水压致裂地应力测量原理、测量装置的组成部分和技术特征。在我国煤矿典型的深部矿区——新汶矿区井下巷道中，完成9个测点的地应力测量。其中5个测点的埋深超过1000m，最深达1220m。测量结果表明，7个测点的最大水平主应力大于垂直主应力；最大水平主应力高达42．1MPa；最大水平主应力与垂直主应力的比值为1．004-1．550；新汶矿区超过1000m深井地应力以水平应力为主，最大水平主应力方向主要集中在N3°E-N43．5°W。通过井下实测，确定出所测区域地应力状态及其分布规律。同时证明，小孔径水压致裂地应力测量法可为深部矿井提供有效、快速的地应力测量手段，为深部巷道布置和支护设计优化提供可靠的基础参数。

英文摘要：

There are many kinds of in-situ stress measurement methods at present, which can be classified into mechanical, geophysical and geological structure information methods. Based on the analysis of the features of various stress measurement methods, a new method--hydraulic fracturing in-situ stress measurement with small borehole, which is suitable for rapid in-situ stress measurement in deep coal mine roadways, is introduced. The in-situ stress measurement principle, device and technical properties are introduced. Nine points of in-situ stress measurement have been completed in underground roadways in typical deep coal mining area, Xinwen coal mining area in China. There are 5 measurement points with buried depth more than 1 000 m, and the maximum is 1 220 m. The measurement results indicate that： （1） there are 7 measurement points with the maximum horizontal principal in-situ stress more than the vertical principal stress; （2） the value of the maximum horizontal principal stress amounts to 42.1 MPa; （3） the ratios of the maximum horizontal principal stresses to the vertical principal stress are 1.004 - 1.550; and （4） the in-situ stress field in Xinwen coal mining with buried depth more than 1 000 m is dominated by horizontal stress; and the orientations of the maximum horizontal principal stresses mainly concentrate on N3°E - N43.5°W. The in-situ stress states and the distribution law in the measured area have been determined through the measurement results. It is also proved that the hydraulic fracturing in-situ stress measurement with small borehole can provide an effective and rapid stress method for deep mines and can offere reliable basic parameters for roadway layout and support design.