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Application of geotechnical drainage net to improvement of ultra-soft soil
Author(s): CAO Yong-hua, LI Wei, LIU Tian-yun
Pages: 237-
240
Year: 2011
Issue:
11
Journal: Port & Waterway Engineering
Keyword: 土工排水网; 超软土; 真空预压; 水平排水垫层;
Abstract: 针对超软土真空预压加固中砂垫层铺设困难、造价高等难题,提出以可循环使用的土工排水网替代砂垫层作为水平排水垫层.对比了砂垫层和土工排水网作为水平排水垫层的异同.通过现场试验,对采用土工排水网时的膜下真空度、地基土的竖向排水效果进行了检验,并对土工排水网的作用机理、铺设工艺和循环利用方法进行了探索.结果表明,在超软土的真空预压加固中,用土工排水网替代砂垫层,施工更为简单,加固效果良好,是可行的.
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