工程防水技术在西安地铁施工中的应用
2019-10-07郑爱武陕娟
郑爱武 陕娟

【摘 要】地下工程防水是工程项目建设中一个永恒的话题,更是地铁施工的重点所在。防水施工同样是一个复杂的系统工程,防水的效果不仅影响建筑物(构筑物)使用功能的基本要求,而且在一定程度上影响着建筑物的结构安全和使用寿命,同时还可以节约投资,降低工程成本减少维修,中铁二十局在西安地铁5号线一期工程施工中在严把原材料关的前提下,严格控制操作工艺,保证车站、区间结构防水达到规范要求。
【关键词】防水设计;构件自防水
Application of Engineering Waterproofing Technology in Xi'an Metro Construction
Zheng Ai-wu1,Shan Juan2
(1.Civil Engineering, Xi'an Technological University Xi'an Shaanxi 710021;
2.NO.Engineering Corporation Limited of CR20g KunMing Yunnan 650200)
【Abstract】Being an eternal topic in project construction, waterproofing of underground engineering is the key point of metro construction. Waterproof construction is a complex system engineering as well because the effect of waterproofing not only affects the basic requirements of the usage function of buildings, but also affects the safety of structure and service life of buildings to a certain extent. At the same time, it can also save investment, reduce project costs and reduce maintenance. During the construction of the first phase of Xi'an Metro Line 5, China Railway 20 Bureau strictly controlled the operation technology in order to make sure that the station and waterproofing of the interval structure meet the requirements of construction standard under the premise of strictly controlling the quality of raw materials.
【Key words】Waterproof design;Component self-waterproofing
1. 工程簡介
西安市地铁五号线一期工程(和平村~纺织城火车站)土建施工项目D5TJSG-2标段包含一站两区间,即一期工程起点~和平村站区间、和平村站、和平村站~阿房宫站区间。其中和平村站的地下水为第四系松散层孔隙潜水,水位埋深14.3~17.3m,水位髙程381.35~382.76m,基本呈连续分布;潜水位埋深30.0m左右。根据详细勘察报告,覆盖层为第四系松散层,含水层主要为弱透水的黏性土夹砂层透镜体,潜水含水层厚度大于50m。一期工程起点~和平村站区间的地下水为第四系松散层孔隙潜水,地下水水位埋深13.2~17.0m,水位高程381.14~382.46m。覆盖层为第四系松散层,含水层主要为弱透水的黏性土夹砂层透镜体,潜水含水层厚度大于50m。和平村站~阿房宫站区间的地下水为第四系松散层孔隙潜水,地下水水位埋深13.9~17.1m,水位高程382.2~383.88m。覆盖层为第四系松散层,含水层主要为弱透水的黏性土夹砂层透镜体,潜水含水层厚度大于50m。
2. 车站结构防水施工方案及技术措施……p>
