| 长白山地区现今地应力测量结果与应力状态分析 |
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| 引用本文： | 张春山,吴满路,张重远,廖椿庭,张淼.长白山地区现今地应力测量结果与应力状态分析[J].地球物理学报,2016,59(3):922-930. |
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| 作者姓名： | 张春山 吴满路 张重远 廖椿庭 张淼 |
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| 作者单位： | 1. 中国地质科学院地质力学研究所, 北京 100081;2. 国土资源部新构造运动与地质灾害重点实验室, 北京 100081 |
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| 基金项目： | 国土资源部科技公益性行业专项(201211095-3),国家科技支撑计划子课题(2012BAK10B03-03)和中国地质调查项目(1212011220087)联合资助. |
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| 摘 要： | 本文通过在长白山地区不同地点进行原地测量获得了现今地应力实测值的大小和方向.为了研究长白山地区现今地应力状态,结合长白山火山监测工程的需要,我们在长白山地区进行了现场地应力测量,首次取得了该区的地应力实测数据.测量方法采用水压致裂法,测点分别布置在安图县永庆乡东清村和松江镇冰湖屯村,抚松县仙人桥镇大青川村等三个不同的构造部位,测量深度为40~95m.测量结果表明:本区现今最大水平主应力方向在天池北部以NW—NNW向为主,而在天池西部则为近EW向为主;最大水平主应力值一般为2.31~12.39 MPa,最小水平主应力值一般为1.39~7.02 MPa.与其他地区相比较,本区属中等偏高应力区.本文对研究区现今应力状态进行了初步分析,本区现今地应力状态主要受区域构造影响,同时受天池岩浆活动和地热田的影响,具有复杂性.
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| 关 键 词： | 长白山 现今地应力 水压致裂法 测量结果 地应力状态分析 |
| 收稿时间： | 2014-02-21 |
Measurement of present-day stress and analysis of stress state in the Changbaishan mountains of Jilin province |
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| ZHANG Chun-Shan,WU Man-Lu,ZHANG Chong-Yuan,LIAO Chun-Ting,ZHANG Miao.Measurement of present-day stress and analysis of stress state in the Changbaishan mountains of Jilin province[J].Chinese Journal of Geophysics,2016,59(3):922-930. |
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| Authors: | ZHANG Chun-Shan WU Man-Lu ZHANG Chong-Yuan LIAO Chun-Ting ZHANG Miao |
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| Institution: | 1. Institute of geomechanics, Chinese academy of geological science, Beijing 100081, China;2. Key Laboratory of Neotectonic Movement & Geohazard, M. L. R., Beijing 100081, China |
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| Abstract: | This paper presents the values and the directions of present-day stress measured at different sites in the Chnagbaishan Mountains of Jilin Province. In order to understand the current state of stress in the Changbaishan Mountains and meet demand of volcanic monitoring, the in-situ stress measurement was carried in this region. These data may be the first measurement results in the Changbaishan region. The measurement sites were located at different tectonic positions, including Dongqing village of Yongqing town(Antu county), Binghutun village of Songjianghe town(Antu county) and Daqingchuan village of Xianrenqiao town(Fusong county), and the measurement was made at depths from 40 m to 95 m using the method of hydraulic fracturing. The results indicate that the direction of maximum principal stress is mainly NW-NNW in the north of Tianchi and EW in the West of Tianchi. The values of maximum principal stress were between 2.31 and 13.9 MPa, which are high or middle compared with that obtained elsewhere in China. And the values of minimum principal stress were between 1.39 and 7.02 MPa. Based on these results, the state analysis of current stress was carried out for the region of Changbaishan Mountains. The state of present-day stress in this region is very complexity, because it was influenced by regional structure, magmatic movement and the geothermal field of Tianchi. |
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| Keywords: | Changbai Shan Present-day stress Method of hydraulic fracturing Measurement results Analysis of stress state |
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