水利工程用土工膜材料与施工导流方案优化设计

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中图分类号：TQ317 文献标志码：A

文章编号：1001-5922（2026）03-0755-04

Optimization design of geomembrane materials and construction diversion scheme for water conservancy projects

WANG Yan 1，CAO Linjia² （1. Jiangsu Wochuan Construction and Development Co.，Ltd.，Suzhou 215164，Chian （2.Suzhou Wuzhong Shuijian Construction Development Co. ，Ltd.，Jiangsu ，China）

Abstract：To improve the durability of anti-seepage materials in water conservancy project construction，a composite geomembrane combining lignin nanospheres with low-density polyethylene （LDPE）was introduced.Then，the influence oflignin nanosphere addition amount on the durability of the composite geomembrane was studied.Finaly， adiversion coferdam structure for water conservancy river courses was designed based on the composite geomembrane.The results show that the optimal addition amount of lignin nanospheres is 4% .At this time，the tensile strength of the composite geomembrane is 12.96MPa ，the water absorption rate is 0.142% ，the tensile strength after ultraviolet aging test is 12.30MPa ，the weight loss rate is 0.46% ，and it shows good acid and alkali corrosion resistance.Practical' application shows that theriver diversion cofferdam structure constructed with the composite geomembrane has good stability and broad application prospects in the diversion construction of water conservancy projects.

Key words ： Anti-seepage materials; geomembrane ; durability ; lignin ;tensile strength

在水利工程领域中，为修建永久性河堤等结构，围堰是重要的临时导流设施。（剩余6149字）