融河高速公路炭质岩特性与路堑边坡防护对策  

Characteristics of Carbonaceous Rock and Protection Measures of Cutting Slope along Rongshui—Hechi Highway

作　　者：林峰 周富华 LIN Feng;ZHOU Fuhua(Guangxi Road and Bridge Engineering Group Co.,Ltd.,Nanning 530200,China;Guangxi Transportation Science and Technology Institute Co.,Ltd.,Nanning 530007,China)

机构地区：[1]广西路桥工程集团有限公司,南宁530200 [2]广西交通科学研究院有限公司,南宁530007

出　　处：《路基工程》2020年第4期222-226,共5页Subgrade Engineering

摘　　要：对广西融水至河池高速公路沿线路堑边坡炭质岩工程特性进行研究,阐述了炭质岩的物质组成、物理力学指标,分析其强度变化与路堑边坡破坏机理关系。进行有机硅固化剂封闭坡面和喷混植生防护试验,固化剂对降低炭质岩的亲水敏感性和保障边坡稳定具有一定效果,较传统防护措施更容易实现生态修复。The engineering characteristics of carbonaceous rock of the cutting slope along Ronghui—Hechi highway in Guangxi were studied herein in such manner that the substance composition,the physical and mechanical indexes were described,and the relation between the strength of rock and the failure mechanism of cutting slope was analyzed.The tests of organic silicon curing agent for slope surface sealing and spray sowing for slope protection were conducted,where the curing agent has a certain effect on reducing the hydrophilic sensitivity of carbonaceous rock and ensuring the stability of slope.As a result,it is easier to realize ecological restoration than traditional protective measures.

关 键 词：路堑边坡 炭质岩 工程特性 破坏机理 固化剂 生态修复 

分 类 号：U416.1[交通运输工程—道路与铁道工程]