岩质边坡轻型支护与生态恢复技术研究

Research on the Technology of Light-duty Support and Ecological Restoration for High Steep Rock Slope of Road Cutting

介绍了广东省广州市萝岗区某市政道路工程,道路沿线为丘陵地貌,挖方路堑地段形成了高陡的岩质边坡,坡面陡峭、凹凸不平,边坡存在危岩崩塌、落石等安全隐患,且边坡的固土和保水条件差,植被绿化较为困难。针对存在的问题,详细研究了4种岩质边坡支护设计方案,通过方案比选,推荐采用主动防护网+喷混植生+三维土工网垫作为该岩质边坡的主要支护方案。该方案属于轻型支护,施工工艺简单、工期短、造价低,具有防止危岩崩塌、落石和恢复生态、改善景观的作用,可为类似工程提供参考。

This paper introduces a municipal road project which is hilly landform in Luogang District,Guangzhou City,Guangdong Province.There are dangerous rock collapse because the slope is steep and uneven.Soil consolidation and water conservation in the slope is poor as well as make green with plants.In view of the existing problems,four kinds of rock slope support design schemes are studied in detail.After being compared,the main support scheme which is an active protective net+seed sprayings three-dimensional geotechnical mesh cushioning is adopted.This light support approach is preferable due to the following advantages:the construction technology is simple,the construction period is short and low cost,it has the functions of preventing dangerous rock collapse,restoring ecology and improving the landscape.It can provide reference for similar projects.