文章通过黄土地区公路路基防护与支挡工程使用现状调查,从设计、施工、养护方面分析了其主要病害与成因,并提出了相应的防治对策。勾缝脱落、裂缝、表面破损、墙背填土沉陷变形及黄土陷穴等是代表性病害形式;各种病害是受多种因素综合作用的结果,成因复杂多样,主要影响因素是黄土的工程特性,设计、施工和养护管理方面的不足等。各种病害处治对策主要有增加排水设施、再次充分夯实、及时检查修补及有效处治黄土陷穴等。 Based on the survey of the present condition of the roadbed protection and support engineering in the loess area, the article analyzed the main diseases and causes of the roadbed protection and design in the aspects of design, construction and maintenance, and put forward corresponding control measures. Grouting shedding, cracks, surface damage, wall backfilling subsidence deformation and loess cave depression is a representative form of disease; various diseases are the result of a combination of many factors, the causes are complex and diverse, the main influencing factors are loess engineering Characteristics, design, construction and maintenance management deficiencies. Various disease treatment measures are to increase the drainage facilities, fully solidified again, timely inspection and repair and effective treatment of loess pits and so on.