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本文作者参加了兰新线(兰西段、武威段)、陇海线(定西段)局部路桥过渡段及下沉地段路基补强工程的施工图设计,在加固既有软弱地基、减小路基土体不均匀沉降、提高承载力的的设计中,采取了劈裂注浆的措施,浆液在压力作用下的可灌性和扩撒距离增大,与周围土体结构胶结成一个整体,提高了路基土体的力学强度,从而使路基得到加固,满足了提速后列车运行安全和舒适的要求。
The author has participated in the construction drawing design of the subgrade reinforcement works of the Lan-Xin Line (Lanxi Section and Wuwei Section) and the Longhai Line (Dingxi Section) in the transitional and subsidence sections of the local road and bridge sections. The reinforcement of existing soft foundations and the reduction of subgrade Soil uneven subsidence and improve the bearing capacity of the design, the adoption of the split grouting measures, the slurry under the pressure of irrigation and spreading distance increases, with the surrounding soil structure into a whole cement, Improve the mechanical strength of the subgrade so that the subgrade can be reinforced to meet the requirements of running safety and comfort of the train after speeding up.