预制拼装式绿色挡墙的填筑试验研究

传统现浇支挡结构存在现场施工工程量大、景观效果差的不足,预制拼装式并兼有自身绿化条件的新型支挡体系将是新的发展方向。通过现场填筑试验,对填筑过程中基底和墙后土压应力、构造柱弯矩、墙体变形等的变化规律进行了研究。结果表明:该新型挡墙的结构体系可类比一般悬臂式挡墙,各项力学响应规律符合理论预期;倾斜墙背侧墙体整体稳定性优于竖直墙背侧墙体;墙高较高时,凸榫前缘土压应力应进行修正。

Experimental Research on Filling of Prefabricated Assembling-type Green Retaining Wall

Traditional cast-in-place retaining structure is large in construction quantity at site but poor in landscape effect. The new support system with prefabricated assembling type and greening condition will be a new development trend. Through site filling test, change law like soil pressure at base and wall back, constructional column bending moment, wall deformation, etc. in the filling process were studied. Results show that the new type retaining wall structure is similar to general cantilever type retaining wall and various mechanical response meets the theoretical expectation. The overall stability of inclined wall back is better than vertical wall back wall body. When the wall is higher, the tenon edge soil pressure shall be modified.