二布一膜改良路基试验研究

利用二布一膜的隔水防渗特性,铺设在路基基床表层,改良路基填料。通过室内试验、现场动、静载试验和防渗测试证明,改良措施是可靠的,能够有效地保持路基的强度和稳定性,降低工程造价。同时还提出一种二布一膜原位受力和变形有效监测方法。

Investigation on embankment improved by complex geomembrane

A kind of complex geomembrane was laid in the upper layer of the roadbed to prevent water penetration, therefore the lower classed soil could be used as fill of embankment. Laboratory tests, in-situ measurements and measurement of vibration during passing of train were done. It was indicated that the technology was efficient for embankment stability and beneficial for reduction of construction cost. A direct measuring method of deformation of the membrane was put forward as well.