摘 要

本设计对盾构隧道的设计内容主要包括盾构隧道衬砌的分块和结构的设计，对隧道衬砌内力的计算采用自由变形均质圆环法，并进行衬砌配筋计算和结构验算。在防水设计中遵循“防、排、截、堵相结合，因地制宜，综合治理”的原则，采用完整的防排水体系，使隧道内防水可靠，排水通畅，保证运营期间隧道内不渗不漏，基本干燥。进行较完整的施工组织设计，包括施工组织设计目标、工程地质条件、隧道施工条件、施工准备、施工工艺和流程、管片生产、管片运输和衬砌拼装施工、安全保证措施、质量控制措施和文明施工措施等环节。

关键词：衬砌分块；自由变形均质圆环法；内力计算；防水设计；施工组织设计

Abstract

This design content mainly includes the design of shield tunnel block and the structure of shield tunnel lining design, for the calculation of internal force of tunnel lining the free deformation homogeneous circle method is adopted, and lining reinforcement calculation and structure calculation.In the drainage design, follow the principle of "combination of prevention, discharge, cutting and blocking, and local conditions and comprehensive management".Adopt the complete waterproof system, make the tunnel waterproof and reliable, drain well, ensure that the tunnel is not leaky during operation, and basically dry.Carry out the complete construction organization design.Including the construction organization design goal, engineering geological conditions, tunnel construction condition, construction preparation, construction technology and process, the segment production, assembling segment transport and lining construction, safety guarantee measures and quality control measures and civilized construction measures.

Key words：The lining block；Free deformation homogenous ring method；The internal force calculation；Drainage design；Construction organization design

目录

第一章 绪论--------------------------------------------------------------------------1

第二章 概况--------------------------------------------------------------------------2

2.1 设计依据与执行主要标准-------------------------------------------------------2

2.2 隧道规模---------------------------------------------------------------------2

第三章 工程概况----------------------------------------------------------------------4

3.1 盾构隧道方案确定-------------------------------------------------------------4

3.2 地形地貌---------------------------------------------------------------------4

3.3 工程设计难点-----------------------------------------------------------------5

第四章 衬砌结构设计------------------------------------------------------------------7

4.1 设计基本资料-----------------------------------------------------------------7

4.2 管片设计---------------------------------------------------------------------8

4.2.1 管片材料---------------------------------------------------------------8

4.2.2 管片参数---------------------------------------------------------------8

4.3 基本使用阶段的荷载计算------------------------------------------------------10

4.4 考虑特殊荷载作用------------------------------------------------------------37

第五章 管片断面设计-----------------------------------------------------------------58

5.1 配筋设计--------------------------------------------------------------------58

5.2 接缝张开量计算--------------------------------------------------------------62

第六章 结构验算---------------------------------------------------------------------64

6.1 千斤顶作用下局部承压计算----------------------------------------------------64

6.1.1 局部承压--------------------------------------------------------------64

6.1.2 预埋件设计------------------------------------------------------------64

6.2 抗浮验算--------------------------------------------------------------------65

第七章 盾构隧道衬砌结构防水设计-----------------------------------------------------67

7.1 防水原则--------------------------------------------------------------------67

7.2 防水标准--------------------------------------------------------------------67

7.3 防水技术要求----------------------------------------------------------------67

7.4 防水设计--------------------------------------------------------------------67

7.4.1 结构自防水------------------------------------------------------------68

7.4.2 接头防水-----------------------------------------------------------------68

7.4.3 螺栓孔防水---------------------------------------------------------------68

7.4.4 壁后注浆孔防水-----------------------------------------------------------69

7.4.5 管片背面防水-------------------------------------------------------------69

7.4.6 管片主体防水-------------------------------------------------------------69

7.4.7 外防水涂层设计-----------------------------------------------------------69

第八章 施工组织设计--------------------------------------------------------------------70

8.1 施工组织设计目标---------------------------------------------------------------70

8.2 施工组织设计编制原则-----------------------------------------------------------70

8.3 本工程重点及难点---------------------------------------------------------------70