Detecting Land Subsidence Using Gravity Method in Jakarta and Bandung Area, Indonesia
Detecting Land Subsidence Using Gravity Method in Jakarta and Bandung Area, Indonesia
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印度尼西亚雅加达和万隆地区利用重力法检测地面沉降
DOI：
10.1016/j.proenv.2015.01.004
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
T. Kazama
中科院分区：
文献类型：
--
作者：
A. Setyawan;Y. Fukuda;J. Nishijima;T. Kazama
由于地下水位的下降往往会引起地面沉降，因此对高程变化和重力变化进行监测是非常重要的。重力变化与高度变化的比率取决于材料的密度。从而为研究地面沉降机理提供了重要信息。研究目的是利用重力观测监测地面沉降。建立了一种新的方法来监测环境问题，如地下水的变化，地面沉降，通过绝对重力测量，一个野外型绝对重力仪，Micro-G LaCoste公司。在雅加达和万隆地区进行了A10的实地测量，不仅验证了仪器的准确性，而且探讨了现场调查的实用和有效的测量方法。结果表明，在雅加达沿海的重力值增加。另外，在万隆地区的Lembang断层附近检测到最大的重力变化。
Since the declining of groundwater level often causes the land subsidence, it is important to monitor both height changes and gravity changes. The rate of gravity changes versus height changes depends on the density of the material. Thus it gives important information about the mechanism of the land subsidence. The objective of research is to monitoring the land subsidence by gravity observations. Establishing a new method to monitor the environmental issues such as groundwater variation, land subsidence, by means of absolute gravity measurements, a field type absolute gravity meter, Micro-G LaCoste Inc. A10 have been conducted in Jakarta and Bandung area, not only to confirm the accuracy of the instrument but also to investigate the practical and efficient measurement methods for the field surveys. The results present that the gravity value increases in the coastal in Jakarta. Otherwise the biggest gravity change was detected around Lembang fault in Bandung area.