南京市绕城公路二期工程软基处理试验研究

Study on Soft Foundation Treatment for Nanjing Outskirt Highway Project,PhaseⅡ

介绍了南京市绕城公路二期工程板桥段软基处理现场试验及有关测试资料．拟定了四种加固方案：预应力土工织物加砂垫层与塑料排水板相结合；土工织物加砂垫层与塑料排水板相结合；砂垫层加塑料排水板；土工织物加砂垫层．分别对四种加固方案进行了现场测试．通过对加固效果作较深入的对比分析。

In situ soft foundation treatment tests and related data for Nanjing outskirt (Banqiao Section) highway project,phase Ⅱ are introduced.Four strengthening schemes are studied:(a) combination of prestressed geotextile,sand cushion and plastic discharge plate;(b) combination of geotextile,sand cushion and plasfic discharge plate;(c) combination of sand cushion and plastic discharge plate and (d) combination of geotextile and sand cushion.In situ tests for the above four schemes are conducted seperately.Comparison and analysis of their strengthening effects are performed,and the rationality of sheme (b) is proved.