西安北至机场线车辆基地场坪设计及处理

Elevation Design and Treatment of Xi'an North Station to Airport Railway Vehicle Base

轨道交通车辆基地具有占地大、房屋间名多、工程投资大等特点,受周边环境影响,需开展针对性设计。本文以西安北至机场轨道交通艺术中心车辆基地为例,针对房屋集中布置、高填方等特点,提出了场坪标高采用阶梯型的设计理念,以及统筹研究、区别对待的地基处理措施,消除了轨道沉降风险,有效地节约工程投资。工程实例表明:地基处理措施有效解决了黄土区下沉问题,使轨道沉降值满足规范要求,厂前区采用阶梯型场坪标高设置,减少工程量的同时,确保段内道路系统排水顺畅,提高使用便利性。

Railway vehicle base has the characteristics of large land occupation,many buildings and large project investment.Due to the influence of surrounding environment,it is necessary to carry out targeted design.Taking the vehicle base of Xi*an North Station to Airport railway as an example,this paper summarizes the characteristics of centralized layout of houses and high fill in the vehicle base during the design process,the design concept of ladder type is adopted for the site elevation,and the foundation treatment measures of overall study and differential treatment are proposed.The risk of track settlement is eliminated and the project investment is effectively saved.The engineering example shows that:foundation treatment measures effectively solve the problem of settlement in loess area,the settlement value of the track can meet the requirements of the code.The front area of the plant is set with ladder type site elevation,the drainage of the road system in the section is smooth and easy to use,while saving the project.