深基坑开挖支护设计毕业论文.pdf

枣园地铁站深基坑开挖及边坡支护 摘 要 边坡工程是指在地表以下开挖的一个地下空间及其配套的支护体系。 而边坡支护就是为保证边坡开挖，基础施工的顺利进行及边坡周边环境的 安全，对边坡侧壁以及周边环境采用的支挡，加固与保护措施。 边坡支护体系是临时结构，安全储备较小，具有较大风险，边坡工程 具有很强的区域性。不同水文，工程地质环境条件下边坡工程的差异很大。 边坡工程环境效应复杂，边坡开挖不仅要保证边坡本身的安全稳定，而且 要有效的控制边坡周边地层移动以及保护周围环境。 本文先介绍了枣园站的工程概况，包括水文地质和周围环境，然后通 过结合对现有边坡开挖支护工法和车站实际情况的比较选择出了适合本站 的开挖支护方案。下来通过土压力的计算、结构内力的计算，配筋、验算、 支撑设计、变形估算等对边坡的开挖支护作了理论上的数据分析，最后通 过施工组织说明了各个工序施工的工法和应注意的问题。 关键词： 支护方案，地下连续墙，支撑，施工组织设计 Abstract Foundation Pit is the excavation of an underground space below the surface and a coordinated support system. Bracing of foundation pit is to ensure that excavation and foundation construction for the smooth and safe environment Foundation Pit and used the pit retaining wall reinforcement and protection. Bracing of Foundation Pit structure is the structural safety of temporary reserves are smaller, more risk. Foundation pit structure has a strong regional. Excavation works under different hydrological environmental and geological conditions are vastly. Effects complex excavation, excavation pit is not only necessary to ensure their own safety ，but also to effectively control the pit surrounding strata. First ，the paper introduces the general engineering situation of Zaoyuan Station ，Including hydrological geology and the environment ， Then ，based on the existing foundation pit excavation method and station actual situation select the suitable for the station of the excavation and support scheme 。And then ， through the soil pressure calculation, structure calculation, reinforcement, checking, support design, deformation estimation ，then made a theoretical analysis of the data for the excavation of foundation pit supporting 。Finally ， through the