浅层地震在复杂断裂带探测中的应用研究
|
摘要
拟建中的潍河特大桥地处沂沭大断裂边缘。区内断裂发育，构造复杂，直接会影响大桥基础的稳定性，因而查清区内断裂带的准确位置与分布是大桥工程的关键。探测应用浅层地震折射波方法和选用追逐与相遇观测系统和大小排列相结合的工作方法，准确地查明了区内断裂的准确位置和特征，与钻井资料对比，十分吻合。
The planned Weihe River Bridge is located at the edge of the Yishu Fault Zone. In this area, faults are well developed and the structure is very complicated. The stability of the bridge foundation is directly affected by the fault distribution. The key issue in the bridge construction is to find the accurate location and distribution of the fault zone. Shallow seismic refraction method was used for this purpose. It involved both the reversed and unreversed lay out system with the combination of larger and smaller spreads. The accuracy of the approach employed is tested by the good accordance of the interpreted fault zone with the well data.
The planned Weihe River Bridge is located at the edge of the Yishu Fault Zone. In this area, faults are well developed and the structure is very complicated. The stability of the bridge foundation is directly affected by the fault distribution. The key issue in the bridge construction is to find the accurate location and distribution of the fault zone. Shallow seismic refraction method was used for this purpose. It involved both the reversed and unreversed lay out system with the combination of larger and smaller spreads. The accuracy of the approach employed is tested by the good accordance of the interpreted fault zone with the well data.
引文
1丁志俊主编．城市地震小区划及工程地震勘探．北京：地震出版社，19912刘保全．浅层地震勘探在岩溶调查中的应用效果．物探与化探，1996，20（6）：474～4753R．迈斯内尔，等著．实用地震勘探技术．吴晖译．北京：地质出版社，19824焦湘恒，等．港湾工程中浅层地震探测方法的研究．山东海洋学院学报，1985，15（4）：82～88
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心