基于人工地震勘探手段的泾阳-渭南断裂浅层特征分析--以西安地铁10号线高陵段为例  

Shallow features of jingyang-weinan fracture analyzed by Artificial seismic exploration method-Taking the gaoling portion of xi'an metro line 10 as an example

作　　者：左秦朝 李雷 王涛 刘俭 Zuo Qinzhao;Li Lei;Wang Tao;Liu Jian(Shaanxi Engineering Survey and Research Institute Co.,LTD,Xi’an 710068)

机构地区：[1]陕西工程勘察研究院有限公司,西安710068

出　　处：《陕西地质》2023年第1期94-98,共5页Geology of Shaanxi

摘　　要：西安地区存在多处断裂带,由此产生很多次生地裂缝,对工程建设造成极大影响。本文通过调查、人工地震钻探、地质钻探等手段分析断裂的特征,确定了泾阳—渭南断裂(高陵区段)断层走向N57°W、倾向NE33°、倾角70°、60m以浅垂直断距3~10m。该断裂为全新世活动断裂,断裂上下错动速率0.18mm/a。Many fault zones in Xi'an area produce many secondary ground cracks,which have a great impact on engineering construction.In this paper,the characteristics of faults are analyzed by means of investigation,artificial seismic drilling and geological drilling,making clear that the Jingyang-Weinan fault(Gaoling section)has a strike N57°W,trend NE33°,a dip angle 70°and a vertical fault distance ranging between 3m and 10m above 60 m to shallow.The fault is a Holocene active fault with a slip rate 0.18 mm/a.

关 键 词：断裂 人工地震 反射双程法 钻探 活动性 

分 类 号：O346.1[理学—固体力学] P315.8[理学—力学]