...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geosciences >A Physical Study of the Effect of Groundwater Salinity on the Compressibility of the Semarang-DemakAquitard, Java Island
【24h】

A Physical Study of the Effect of Groundwater Salinity on the Compressibility of the Semarang-DemakAquitard, Java Island

机译：地下水盐度对爪哇岛Semarang-DemakAquitard可压缩性影响的物理研究

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Semarang-Demak and other cities along the coast of North Java are vulnerable to land subsidence. The presence of saline groundwater in the coastal region is thought to affect the high subsidence rate, in this case the compressibility of the aquitard layer. We aimed to analyze the effects of groundwater salinity on the compression characteristics of the Semarang-Demak clay using physical analysis. Methods included the determination of groundwater salinity, clay mineralogy and fabrics, and consolidation tests under various salinity conditions. The Semarang-Demak clay is dominated by smectite of high activity, and saline clay exists at the depth of 10 to 35 m. Consolidation tests revealed that the increase insalinity increases the average consolidation rate and hydraulic conductivity up to 42% and 37.5%, respectively. Clay fabric analysis showed that the groundwater salinity modified the interconnectivity of pores by changing the fabric into parallel alignments, facilitating faster porewater dissipation, hence the clay is more readily compressed. These findings are useful for explaining the mechanism of the fast-subsiding coastal plains of North Java.
机译：北爪哇沿海的三宝垄-德马克（Semarang-Demak）和其他城市容易受到地面沉降的影响。人们认为，沿海地区盐碱地下水的存在会影响高沉降率，在这种情况下，是阿奎德层的可压缩性。我们旨在通过物理分析来分析地下水盐度对三宝垄-德马克粘土压缩特性的影响。方法包括确定地下水盐度，粘土矿物学和织物以及在各种盐度条件下的固结测试。三宝垄-德马克粘土以高活性蒙脱石为主导，盐土存在于10至35 m的深度。固结测试显示，增加的盐度可使平均固结率和水力传导率分别提高至42％和37.5％。粘土织物分析表明，通过将织物改变成平行排列，地下水盐度改变了孔隙的互连性，促进了较快的孔隙水消散，因此粘土更易于压缩。这些发现对于解释北爪哇省快速沉降的沿海平原的机理很有用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号