摘要
介绍了东营地面沉降监测的作业情况:地面沉降监测时间为2002年4月;使用仪器设备为AT-G2水准仪和2m因瓦水准标尺;外业记录和内业数据处理在PC 1500机上使用专用软件完成;共观测一等水准66.8km,联测20个点;二等水准166.7km,联测47个点。对观测结果进行统计分析,发现该市城区绝大部分监测点均有下沉,主要沉降区为石油大学西2km至六户镇以西,沉降量最大为35mm,平均下沉28mm。由于此次监测的条件有限,监测结果尚不能全面说明问题,建议今后在监测时间的安排、埋设土层分层标等方面作有针对性的改进。
This paper introduced the working instance about Dongying ground subsidence as following: subsidence observation date is April, 2002; used equipment is AT-G2 level and 2m Invar staves; field recording and indoor data processing use PC-1500 computer with the special software; amount of first-order leveling is 66. 8 km, amount of benchmark are 20; second-order leveling route length is 166.7km, amount of benchmark is 47. Analysis to the observation results is as following: The great mass of monitoring points in the city zone has all subsided, particularly in west of 2 km of Oil University and Lunhe town, maximal subsidence quantity is 35mm, and average subsidence quantity is 28mm. Because of the confinement of monitoring conditions, monitoring result can't explain the comprehensive case, and proposals for pertinence reform such as monitoring time plan, burying soil layers marks and so on are put forward.
出处
《地矿测绘》
2004年第1期34-36,共3页
Surveying and Mapping of Geology and Mineral Resources
关键词
地面沉降
水准测量
监测
Ground subsidence
Leveling
Monitoring
