Mechanics of Mud Flow and Land Subscience

泥浆流力学与土地科学

• 批准号: 9112748
• 负责人: Chiang Mei
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-12-01 至 1995-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9112748&HistoricalAwards=false
• 关键词: Mechanics; Mud; Flow; Land; Subscience

The project is to study the mechanics of mud flows and of land subsidence due to intensive pumping. The non-Newtonian behavior of fluid mud will be studied for diverse flow velocities. For slow spreading from a point source two horizontal dimensions will be examined. For moderate to high flow speeds the instability and the development of waves in a mud layer or an inclined plane will be investigated. Land subsidence due to intense pumping from isolated pumping regions will be studied for finite soil deformation and for nonlinear coupling between drawdown and compaction which is important for soft and thick aquitards. The combined effects of these two disturbances will be examined.

该项目是为了研究泥石流和密集抽水引起的地面沉降的力学。在不同流速下，浮泥的非牛顿行为将被研究。对于从点源缓慢传播的情况，将检查两个水平维度。对于中到高流速，将研究泥层或斜面中的不稳定性和波浪的发展。对于有限土体变形和非线性土体，将研究孤立抽水区的强抽水引起的地面沉降。下沉和压实之间的耦合，这对于软厚含水层来说是很重要的。我们将研究这两种干扰的综合影响。