Performance Study On Typically Cross-sectional Structure And Padding Of Reservoir Bank Roadbed In Wenma Road

5.12 Wen chuan especially big earthquake disaster occurs, caused colossal life and property losses to the area's people. Earthquake has caused devastating damage to the capital construction of traffic in the disaster area. State Road 317 from wenchuan to maerkang(Called wenma Road) as a key channel for the disaster area. The quality of post-disaster reconstruction influence upon the economic recovery. because of difficult terrain, water character, construction materials, reconstruction of the road will have many problems. reservoir bank roadbed rebuilt and improvement, and The effective use of phyllite are the main technique problems, those problems will influence on guarantees passes,the quality of roadbed, and project cost. So this paper lays emphasis on the research of Performance study on typically cross-sectional structure and padding of reservoir bank roadbed in WenMa Road. Objective to provide foundation for Wenma Road reconstruction and Engineering Design, By investigating at construction site studying lots of data and laboratory testing. make the following greater efforts in this paper :1.Through investigated road subgrade of reservoir bank of mountain area, sum up reservoir bank roadbed in the case of the five basic types of ramp lots and steep lot and poor geological section and seasonal immerse and the annual immerse, then preliminary analysising theirs use conditions.2.Through cause analysised the main subgrade disease of reservoir bank roadbed, proposed to typical cross-sectional form and the type of protection and set the waterproof and drainage of structure in the reservoir bank roadbed.3.Through detailed analysis of the Wenchuan area, proposed to the ramp lots and steeplot of reservoir bank roadbed rebuilt structure forms in the Wenchuan—Maerkang Road rebuilding project.4.Firstly,by researching on the road performance of phyllite rock which distribute in Wenchuan—Maerkang Road,then determine the gradation and the range when the phyllite rock used as roadbed filler,last studying the construction technology of phyllite rock.5.Using above in reservoir bank roadbed engineering design of WenMa Road LJ3 sections; which show that the scientific achievements have important guiding significance to the engineering design, and treatmented phyllite rock waste bank achieve a better economic efficiency.