摘要
选取张渤带地区2008年以来连续稳定、固体潮形态明显的昌平台井、顺义板桥井、宝坻井、辛庄井、玉田冀03井、大灰厂井等6口井数字化水位及相应的气压资料。利用气压系数和M2波潮汐因子等滑动拟合,得到不排水状态下,各井含水层的孔隙度、固体骨架的体积压缩系数和水的体积压缩系数。接着在水平层状含水层(一维)模式下,利用部分含水层介质参数(孔隙度、水和固体骨架的体积压缩系数)、井水位变化量与含水层垂直向应力变化量的关系式,定量分析了张渤带地区构造应力场的动态变化过程。结果表明,张渤带近几年以持续的应力增强活动为主,今后需加强多学科、多手段的密切跟踪。
We selected digital water level and corresponding air pressure data of 6 wells in the Zhangbo Belt area, which are continuous, stable and with obvious solid tide since 2008. These wells are Changping station well, Shunyi Banqiao well, Baodi well, Xinzhuang well, Yutian（03） well, Dahuichang well etc. We obtained porosity and volume compression coefficient between solid skeleton and water under undrained condition by the barometric efficiency and M2 tidal factor smooth fitting. In horizontally layered one-dimensional aquifer mode, making use of partial aquifer parameters （porosity, water and solid skeleton volume compression coefficient）, relationship between water level variation and aquifer vertical stress, we quantitatively analyzed the dynamic change process of tectonic stress field of the Zhangbo Belt area. The results show that Zhangbo Belt area has continued with stress enhancement activities in recent years.
出处
《地震》
CSCD
北大核心
2015年第2期133-138,共6页
Earthquake
基金
2014年度震情跟踪合同制定向重点工作任务资助项目(2014010301)
关键词
构造应力场
数字化水位
时序特征
张渤带地区
Tectonic stress field
Digital water level
Temporal characteristics
The Zhangbo Belt area
