{"id":16538,"date":"2024-02-07T07:25:37","date_gmt":"2024-02-07T07:25:37","guid":{"rendered":"http:\/\/141.23.68.248\/wp\/?page_id=16538"},"modified":"2024-02-12T10:14:23","modified_gmt":"2024-02-12T10:14:23","slug":"02-5-cut-off-wall","status":"publish","type":"page","link":"http:\/\/141.23.68.248\/wp\/?page_id=16538","title":{"rendered":"Cut Off Wall"},"content":{"rendered":"

Introduction of the System:<\/h3>\n

Developments in the construction of cut-off walls have enabled the construction of large zoned earth-fill embankment dams on deep foundations. In some cases, cut-off walls have also been used to rehabilitate aging structures. The primary function of a cut-off wall is to control or eliminate foundation seepage below dams from upstream to downstream. For dams that require a foundation cut-off, the cut-off wall is typically constructed in the foundation by the slurry trench method, then the dam is built on top of the cut-off wall and foundation [1<\/a>].
\nCutoff walls are often used in combination with other remediation and containment techniques such as pumping wells and gravity drains. The figure below shows an example of a hanging, down-gradient cutoff wall being used to stop the flow of a floating contaminant and a pumping well being utilized to remove the contaminant from the soil.<\/p>\n

\"capture1\"Figure 1: Cut Wall [2<\/a>]<\/p>\n

Boundary Conditions:<\/strong><\/p>\n

When conducting a life cycle analysis (LCA) and multi-criteria decision analysis (MCDA) for a cutoff wall, it is crucial to define comprehensive boundary conditions. For LCA, this involves assessing environmental impacts from raw material extraction to construction, operation, and decommissioning. In the context of MCDA, criteria include the cutoff wall’s effectiveness, environmental impact, technical feasibility, and adaptability. Evaluating the complete life cycle and various criteria ensures a holistic understanding of the cutoff wall’s environmental aspects, facilitating informed decision-making in its design, construction, and maintenance.<\/p>\n

Life Cycle Analysis:<\/strong><\/p>\n

This function will take as input as following:<\/p>\n