Experimental study on the ratio of similar materials of medium-weathered granite in coastal rock slopes

• 1、 School of Civil and Architectural Engineering, Henan University, Kaifeng, Henan 475004, China
• 2、Henan Rail Transit Intelligent Construction Engineering Research Center, Zhengzhou 450016, China

Abstract：In order to study the dynamic response of rocky slope under earthquake action on the southeast coastal slope, a simulation test of similar material ratio of moderately weathered granite was first carried out. Iron powder and quartz sand were selected as aggregates for the test; cement, clay, water as regulating materials; The quick-setting agent is a similar material ratio scheme for the binder, and the orthogonal table of five factors and four levels is designed, and the rock compression test is carried out. The results show that clay mainly affects the elastic modulus of similar materials, and the elastic modulus of similar materials increases with the increase of clay. Iron powder has a significant contribution to the elastic modulus and cohesion of similar materials in weathered granite. The influence of cement on similar materials is relatively stable, and the most suitable shaker test ratio is, iron powder: quartz sand: cement: clay: quick-setting agent: water = 405:800:130:16:2.1:140. The results obtained by orthogonal design with materials as factor variables can provide a good reference for the simulation of other shaking table test materials.

Keywords： large-scale shaking table experimental test orthogonal design medium-weathered granite-like material rock compression test