区域应力场

本文利用遥感资料，解译水系图，并在GIS支持下，计算区域应力场的主应力方向，所得结果与用常规地应力测量和震源机制解译的应力场主应力方向相一致。

The paper interprets the drainage system figure by using remote sense data , and calculates the principal stress direction of the regional stress field with the help of GIS . The calculated principal stress direction is consistent with commonly measured and interpreted result by seismic method .

震中附近的3个地震台记录的S波偏振方向在5.4级地震前出现由原来与区域应力场一致的NE向转为NW向震后又转回NE向。

Before the shock , the S-wave polarization direction that recorded by 3 stations around the epicenter turned to NW from NE consistent with the direction of regional stress field ; but after the shock , it turned to NE again .

根据多年形变和现今GPS观测资料，分析福建地壳垂直运动与水平运动，显示区域应力场优势分布特征。

Based on the deformation data of several years and the present observation of GPS , the horizontal and vertical crustal movement is analyzed , and the results show that the regional stress field presents the feature of dominant distribution .

异常较高值的分布与区域应力场最大主压应力方向基本一致，且发现T轴方位上时间延迟Δt＞0，P轴方位上时间延迟Δt＜0，与理论模式一致。

The distribution of high abnormal value was corresponding to the direction of maximum principal compressive stress . We also found that the time delay Δ T > 0 along T axis and Δ T < 0 along P axis , which was corresponding to the theoretical model .

比较区域应力场和GPS测量结果，得出云南地区浅部和深部物质运动模式有所不同，但同时也存在着某种复杂的耦合关系，有待进一步研究。

Comparation with stress filed and the metrical result of GPS , it shows hat , while the movement modes of the shallow and the deep are different beneath Yunnan , synchronously there exists complex coupling effect between crustal block and upper mantle .

本文从地震的时、空分布特征、区域应力场动态、能量释放方式、b值及震群特征6个方面研究了台湾海峡及其西边地区地震活动的正常动态及异常特征。

In this paper , the normal and abnormal behaviours of seismicity in the Taiwan Strait and the land area to its west have been studied in terms of the characteristics of seismic space and time distribution , stress field trends , energy release , b value and swarm sequence .

结果表明，该区域应力场主压应力方向为SW-NE向。

The result shows that the principal compressional stress field is in the SW NE direction .

我国地震台网所记录到的国内地震大部分落在3&13°的范围内，因此在此范围内的Pnl波对研究区域应力场，板块动力学及地壳结构具有非常重要的意义。+

Most of the earthquake data recorded by our seismograph network are in the range of 3 ° - 13 ° . The study of Pnl - wave in this range shows great significance in the research of regional stress field , plate dynamics and crustal structures .

福建地区地震活动特征及区域应力场研究

Research on seismicity characteristics and regional stress field in Fujian area

天水地区深部构造走向及区域应力场

Strike of deep structure and regional stress field in Tianshui area

第二，地震活动、断层面解与区域应力场；

Earthquake activities , fault plane solution and stress fields .

区域应力场研究结果在地震形势分析中的应用

Application of research results of regional stress field in earthquake situation analysis

河西走廊地区区域应力场的研究

Research on the regional stress field in the area of Gansu Corridor

河西走廊及其南缘地区形变特征与区域应力场

The deformation characteristics and regional stress field in Hexi and southern area

木材裂纹尖端区域应力场的数值分析和测试

Analysis and Testing of Stresses at Crack Tip of Wood

用衍射光栅法测试Ⅰ型裂纹尖端区域应力场

Measurement of stress fields at the tip of type ⅰ crack using diffraction

上海及邻近地区区域应力场和地震破裂方式的探讨

Discussion of stress field and earthquake rupture form in Shanghai and its neighbouring region

闽台震源机制和区域应力场

On the focal mechanisms of earthquakes and regional stress field of the Fujian-Taiwan region

北京地区区域应力场及地壳稳定性研究

The research on the recent stress field and regional stability in the Beijing area

东亚地震活动的时空分布及其与区域应力场的关系

Spatiotemporal distribution of seismic activity in East Asia and its relation to regional stress field

日本南海海槽地震区域应力场及其板块构造动力学特征

Regional characteristics of stress field and its dynamics in and around the Nankai trough , Japan

多数地震活动图象和地震预报指标反映的是区域应力场的变化；

Most of seismicity pattern and seismological prediction indexes reflect the variation of regional stress field ;

本文以正交光栅作为应变传感器，采用衍射光栅法对不同载荷下Ⅰ型裂纹尖端区域应力场进行了测试，结果与有关理论较为一致

Crossed grating was selected as strain sensor in this paper , and stress fields at the tip

装载机动臂铰点区域应力场的数值计算与试验研究

Numerical Calculation and Test Research on Stress Fields in the Lifting Arm Joint Area of Wheel Loader

轴落入98区段上，反映的是区域应力场的相对稳定；

When the axis lies in section 98 , it indicates the relative stability of regional stress field ;

唐山7.8级地震前后区域应力场的动态变化特征

Dynamic change of regional stress field inverted by using water level data before and after the Tangshan m_s7.8 earthquake

中新生代辽河盆地的形成和发展受控于多期区域应力场变化。

The formation and evolution of Liaohe Meso-Cenozoic Basin were controlled by the variation of different regional stress field .

剪切波分裂参数与地壳介质的物理性质有关，与区域应力场有关。

The parameters of share-wave splitting are relative to the physical property of curst media and regional stress field .

关中重力场的转折变化受制于大区域应力场的影响和作用。

Third , The evolutionary process of gravity field is restricted by the stress field in a large region .

数学模拟结果与地形变和震源机制等资料较吻合，本文的主要结果为：（1）唐山地震孕育过程中区域应力场的时间变化。

The principal results are as follows : 1.The temporal variation of the regional stress field in earthquake preparatory process is obtained .