构造重力扩展机制的地质力学模拟研究

本文采用相似材料的地质力学机制模拟试验再现并验证了西安地裂缝的构造重力扩展机制，得出了构造重力扩展机制是西安地裂缝形成的根本成因，同时还得出了工程建筑物只要避开地裂缝一定距离就可以安全布置，以及西安地裂缝最大可能延深为老第三系地层的中上部等重要结论，初步揭示了现今西安市异常地面沉降的成因，具有一定的理论价值和社会效益。

STUDY ON GEOMECHANICAL SIMULATION OF TECTONIC GRAVITY SPREADING MECHANISM

Using the techniques of geomechanical mechanism simulation of resemble material,the tectonic gravity spreading mechanism of Xi’an ground fissures is reproduced and testified in this paper.Some important conclusions,such as the tectonic gravity spreading mechanism is the essential reason for the ground fissures,the engineering buildings can be safely planned if only keeping a certain distance from the ground fissures,the maximum depth of the around fissures extend is likely at the upper-middle part of Paleogene deposits,etc. are drawn out. The reason for the abnormal land subsidence is revealed preliminarily. The results has obvious theoretical significance and social-economic benefit.