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与国外高速公路相比较,我国高速公路路基填筑高度明显偏高,如何降低路基填筑高度,是公路工程技术人员必须研究的问题。渗透排水技术的应用是平原地区高速公路建设的一个突破,它运用水的自然渗透原理,打开了雨水的入地之门,利用地下空间资源,有效地解决了平原区高速公路下挖通道的排水问题,对降低平原区高速公路路基高度有重大影响,并产生了巨大的经济和社会效益。本文结合大广高速公路衡大段的工程实践,通过对渗透排水系统的原理、结构组成等进行了阐述,具有极大的推广应用价值。
Compared with foreign expressways, the height of embankment construction of expressways in China is obviously high. How to reduce the height of roadbed filling is a problem that must be studied by highway engineering technicians. The application of seepage drainage technology is a breakthrough in highway construction in plain areas. It uses the natural infiltration principle of water and opens the door to rainwater. By using underground space resources, drainage of undercut roads in plain area is effectively solved The problems have a significant impact on reducing the height of expressway embankment in the plain area and have had enormous economic and social benefits. Based on the engineering practice of large scale section of Daguang Expressway, this paper elaborates the principle, structure and composition of the infiltration and drainage system, which has a great promotion and application value.