客土喷播技术在泌桐高速公路的应用

随着我国高速公路的发展，高速公路边坡防护的形式已由以往惯用的圬工防护向植被防护等生态防护形式发展。边坡植被防护不仅能消除和缓解高速公路对客观环境造成的不良影响，减小区域性水土流失，而且实现公路与自然景观的可持续协调发展。针对泌桐高速公路上实施的植被防护技术之一的客土喷播技术，从原理、机械设备、材料、施工工艺等方面做了详尽的介绍。根据对泌桐高速公路沿线的自然环境概况（包括气候、土壤、植被、工程情况）的研究，提出了新型的客土喷播技术的适用条件、植物种类选择及配比方案、施工工艺等，并从设计、施工角度提出了改进意见。

Application of Seed Spraying Technology on Bi-Tong Expressway

With the development of expressway in China, the protection of expressway side slopes changes from the traditional masonry protection to the ecology-favorable vegetation protection. The application of side slope vegetation protection can not only eliminate the adverse effect on the environment imposed by expressways, minimize the regional water/soil loss, but also can achieve a sustainable and harmonic development between the expressways and the landscapes. In the paper, seed spraying technology, one of the vegetation protection technologies adopted on Bi-Tong expressway, is presented in respect of working principle, mechanical equipment, materials and execution workmanship. The application conditions, vegetation types, matching plan and execution workmanship of the seed spraying technology are summarized on basis of studies on the natural environment conditions along Bi-Tong expressway, including climate, soil, vegetation and engineering conditions. Furthermore, improvement suggestions are made for the seed spraying technology in respect of design and execution.