菜单
  

    摘要:本设计围绕贵阳轻轨2号线机小区间左线暗挖隧道进行,区间隧道全长496.2m(ZCK46+434~+930.2),ZCK46+434~+579段采用明挖施工,ZCK46+579~+930.2段采用暗挖施工,区间暗挖段采用台阶法(预留核心土)施工。本次设计选用围岩级别为V,二次衬砌类型为Vc1的暗挖段进行设计,全长30.2m,洞身位于中风化灰岩中。二次衬砌选用C35防水混凝土和HRB400钢筋,受力钢筋的保护层厚度为30mm。本次设计利用结构力学求解软件计算出相关内力数据,并按照《混凝土结构设计原理》进行配筋计算,通过检算得知衬砌结构的安全稳定性满足设计要求,最后通过AutoCAD绘出图纸。在施工组织设计方面,以保证施工安全为主,施工中注重环境保护,做到绿色施工;为确保工期,施工工期和顺序、施工工序设置以及施工人员的分配管理都做到了科学合理。69810

    毕业论文关键词: 暗挖;隧道;台阶法;结构设计;二次衬砌

    Structural design of the left line tunnel in Guiyang light rail line 2

    Abstract:The design of the tunnel is about 496.2m(ZCK46+434~+930.2)in the left tunnel of Guiyang Light Rail Line 2, ZCK46 + 434 ~ +579 section with the excavation construction, and ZCK46 +579 ~ +930.2 paragraph with dug construction.The interval excavation is constructed by step method.This design uses the surrounding rock level V, secondary lining type Vc1 dark excavation design, length 30.2m.The cave is located in the Weathered limestone. The main structure and its associated important components, the safety level for the first level. The other components of the security level of two, support the security level of not less than two. Secondary lining selection of C35 waterproof reinforced concrete and HRB400 steel, reinforced steel protective layer thickness of 30mm. The design of the use of structural mechanics to solve the software to calculate the relevant internal force data, and in accordance with the "concrete structure design principle" for reinforcement calculation, through the inspection that the safety and stability of the lining structure to meet the design requirements, and finally draw drawings through AutoCAD. In the construction organization design, in order to ensure the construction safety, construction focus on environmental protection, so that green construction; to ensure the duration, construction period and order, construction process and the allocation of construction personnel management has done a scientific and rational.

    KeyWords: Dark digging; Tunneling; step method; structural design; secondary lining

    目录

    1 绪论 1

    1.1 课题的目的和意义 1

    1.2 国内外研究现状与水平 1

    1.3 发展趋势 1

    1.4 文献综述 2

    2 概述 2

    2.1 设计依据 2

    2.2 设计范围 3

    2.3 设计原则及设计标准 3

    2.3.1 设计原则 3

    2.3.2 设计标准 3

    2.3.3 结构耐久性要求 5

    3 地质概况 5

    3.1 气象、水文 5

    3.2 地形地貌 6

    3.3 地层岩性 6

    3.3.1 第四系覆盖层 6

    3.3.2 基岩 6

    3.4 地质构造及地震烈度

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