The developing of dangerous rock is due to release of in-situ stress in rock, aeolation, water erosion and root flerry.
地应力卸荷、风化、流水侵蚀、植物根劈是危岩发育的主要原因。
So in-situ stress field is also one of base works about drilling engineering design.
因此地应力场的研究是钻井工程设计的基础工作之一。
The direction and magnitude of in-situ stress greatly affect the stability of cavern.
地应力场的大小与方向，对溶腔稳定性影响较大。
This paper introduces the method, process and results of the in-situ stress measurement.
本文介绍了地应力测量所使用的测量方法、测量过程和测量结果。
Initial in-situ stress field is analyzed with multiple variables and equations regression.
在初始地应力场分析问题中，采用了多方程回归方法。
The result indicates that the depth of BEDZ is determined by the existence of in-situ stress.
检测结果表明，地应力的存在对深埋隧洞爆破开挖损伤区具有较大影响。
In-situ stress was measured by overcoming method in borehole in Zhaolou Coal Mine shaft station.
采用钻孔套芯应力解除法在赵楼煤矿井底车场位置选点进行了地应力测量。
They will greatly influence the re-liability and accuracy of the measured results of in-situ stress.
而这些问题的存在将大大影响地应力测量计算结果的可靠性和准确性。
By inversion of the data of in-situ stress measurements the direction of regional stress has been obtained.
根据该区原地应力测量资料反演了区域应力场方向。
The fracturing pressure is dependent on in-situ stress, well deviation and the anisotropy of tensile strength.
井壁的破裂压力不仅取决于地应力，还与井眼形态和地层的强度各向异性有关。
The method makes it possible to inverse stress field in the formation where the data of in-situ stress measured are scarce.
该方法为缺乏实测地应力资料的区域提供反演储层应力场的新途径。
In the southwest of China, many large-scale underground power stations were built in the high mountain zone with high in-situ stress.
中国西南的许多大型地下电站建在高山峡谷地区，该地区普遍有较高的初始地应力。
The grey system is the system in which some information is defined and some undefined. The in-situ stress field is a typical grey system.
信息部分明确、部分不明确的系统为灰色系统，地应力场则是典型的灰色系统。
The second one is a method using gray system theory, with which problem of a few samples of measured in-situ stress value could be resolved.
第二种为灰色系统理论方法，用此方法能解决实测地应力值小样本问题。
A convenient and reliable technique being used for studying the in-situ stress orientation is a key problem concerned by petroleum engineers.
因此，通过较简便、可靠的方法确定地应力方向是石油工作者关注的重要问题之一。
Because the different orientation fractures endures different in-situ stress, several models have been obtained to estimate normal stress and efficient stress.
不同方位的裂缝所处的地应力状态不同，本文建立了不同方位裂缝所受的法向应力和有效应力的模型。
To conduct fracturing on reservoirs with multiple layers which are thin and different in in-situ stress , the foundation work is to get independly layers profiles.
实施多层压裂分析的基础工作就是地层分层，适当分层能够指导符合实际地质情况的压裂设计。
When the horizontal in-situ stress is non-uniform, the casing stress is non-uniform at all times not only in the isotropic formation but also the orthotropic ones.
在非均匀水平地应力条件下，无论地层为各向同性或各向异性，套管应力均呈现非均匀分布态势，其套管应力极值变化不大。
The relation between the deformation shape of casing and the areas and subjected to ground stress and the theory solution of non-uniform in-situ stress were analyzed.
对套管的变形形态与地应力作用大小、应力范围之间的关系和非均匀地应力的求解进行了研究。
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;
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；
There are many kinds of in-situ stress measurement methods at present, which can be classified into mechanical, geophysical and geological structure information methods.
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。
The Conditions of in situ rock-burst were probed into from rocks, rock mass structure, in-situ stress, hydrological conditions, engineering design and construction factors.
从岩石、岩体构造、原岩应力、水文地质条件、工程设计和施工因素以及围岩应力等六个方面论述和探讨了现场岩爆发生的条件。
And the variation law of the hole collapse pressure of extended reach well along with hole Angle and azimuth mostly decided by the status of the stratigraphic in-situ stress.
大位移井井壁坍塌压力随井斜角与井斜方位角的变化规律主要由地层的原地应力状态决定。
The active tectonic pattern and recent stress state in the seismic region of NW Yunnan province are discussed on the basis of field observation and in-situ stress measurements.
本文根据野外调查和原地应力测量资料，讨论了滇西北地震活动区的活动构造型式和现今应力状态。
The active tectonic pattern and recent stress state in the seismic region of NW Yunnan province are discussed on the basis of field observation and in-situ stress measurements. Data.
本文根据野外调查和原地应力测量资料，讨论了滇西北地震活动区的活动构造型式和现今应力状态。
The group identification of elastic modulus, in-situ stress and damage parameters is processed respectively according to the different number of crack group contained in the rock mass.
讨论了含一组裂隙和两组裂隙情况下弹性模量与损伤参数共同辨识、地应力与损伤参数共同辨识以及三者同时辨识时的可靠性问题。
In-situ stress measurements were made in a survey tunnel using the hollow inclusion stress gauge in order to gain knowledge of the present stress state of the Pushihe hydropower station.
为了解浦石河抽水蓄能电站枢纽区现今应力状态，采用空心包体应力计在探洞内进行了地应力测量。
In order to evaluate the characteristics of in-situ stress distribution in Ahai Hydro-power Stations dam site, Jinshajiang River, the hydro-fracturing measurement and analysis are conducted.
为了评价金沙江阿海水电站坝址区地应力的分布特征，进行了水压致裂法测试与分析。
The results show that the internal friction Angle of rock has importance affect on the displacement of surrounding rock for deep roadway when in-situ stress and support resistance all are certain.
分析结果表明，在地应力和支护阻力一定时，岩石的内摩擦角对深埋巷道围岩位移的影响最为明显。
To studied four Jurassic series main natural gas fields nearly 100 Wells to carry on processing, has established the in-situ stress section plane, divided five kind of stresses section planes type.
对研究四个侏罗系主要气田近100余口井进行了处理，建立了地应力剖面，划分出五类应力剖面类型。
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