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铁路路堑边坡喷锚防护包括喷砂浆、喷混凝土、锚杆喷混凝土或砂浆、锚杆铁丝网喷混凝土或砂浆等形式。实践证明喷锚防护是路堑边坡防护诸措施中较好的一种。它具有防护效果好、施工进度快,节省工程材料、降低工程造价,便于机械化施工和减轻工人劳动强度等显著优点。我们曾和铁道部第一工程局一处配合在梅七线作过试验,对既有线土一些路堑喷锚工点作了调查,认为在已有经验的基础上,路堑喷锚防护技术应该进一步发展并推广使用。梅七线喷混凝土防护工点的设计和施工情况简介如下:
Spray anchor protection for railway cutting slope includes sprayed mortar, shotcrete, anchor sprayed concrete or mortar, anchor barbed wire sprayed concrete or mortar and other forms. Practice has proved that shotcrete anchor protection is a better measure of cutting slope protection measures. It has the advantages of good protective effect, fast construction progress, saving engineering materials, reducing construction cost, facilitating mechanized construction and reducing labor intensity of workers. We worked with the First Engineering Bureau of the Ministry of Railways, a joint trial in the Mei Qixian, some of the existing line of soil cutting and blasting anchors made a survey, based on the existing experience, the grazing shot bolt and anchor protection technology should be further Develop and promote the use of. Mei Qixian spray concrete protection point design and construction of the situation is as follows: