fault fissure

One of the factors of fault activity is caused by upward movement of mercury along the fault fissure.

汞沿断裂裂隙向上运移系促使断裂活动的动力因素之一；

This paper discusses the hydrocarbon conduit systems such as fault and structural fissure, unconformity and paleo-weathering crust, Ordovician vug and fracture as well as interconnected sand body in light of Tahe oilfield and its regional geological situations.

根据塔河油田及其区域地质情况，论述了断层及构造裂隙，不整合面和古风化壳，奥陶系孔、洞、缝和连通砂体四类输导系统。

Rock mass is discontinuous because of the movement and development of the crust. The joint, fissure, fault fracture are the typical modes of this discontinuation.

岩体介质由于地壳的不断运动、发展，呈现出显著的不连续性，存在大量的节理、裂隙等不连续界面。

Influence of vertical fault fissure on site ground motion

竖向断裂缝对场地地震动的影响分析

The secondary fissure, located on the upfaulted block of the major fissure, has the normal fault property with north dip and north downthrown, and merges into the major fissure with Y-shaped distribution at depth 300-500m in Quaternary system.

次缝位于主缝上盘，具有北倾北降的正断裂性质，并与主缝断裂呈丫字型构造，在深度300～500m处的第四系内与主缝汇合。

Hence, when aa ground fissure or its underlying fault is located in the outer radial tension zone, the movement of ground fissure would be accelerated by groundwater pumping.

当地裂缝及其下伏断层或裂隙位于抽水活动引起的径向拉张应变区域时，地裂缝将出现加速活动；

The fault fissure is very common in the engineering site and it is necessary to understand the ground motion of the site with ground fissure.

断裂缝在工程场地十分常见，研究其对场地地震动的影响很有必要。

The active fault and ground fissure problem in highway engineering has great negative influence on highway infrastructure construction, project investment and processing safety in western region.

西部地区公路工程建设中的活断层和地裂缝问题已经成为严重影响公路交通基础设施建设、工程投资和运营安全的重大问题。

Based on the measured ground stress data, a 3D non-linear finite element back analysis numerical model for ground stress is set up and the fault and fissure concentrated zone is simulated.

结合实测地应力资料，建立了三维非线性有限元地应力反演分析数值模型，模拟了断层及裂隙密集带。