北京地铁矿山法区间隧道结构设计指南070106

验收文件之三

北京地铁矿山法区间隧道

结构设计计算指南

（试用）

北京市轨道交通建设管理有限公司

二○○六年十二月

前 言

根据北京城市轨道交通矿山法修建区间隧道的地层、地面环境和埋深等实际条件，以及多年的设计施工经验，针对矿山法区间隧道设计检算中有关地层压力、计算模型、计算参数等不统一或不明确状况，在《地铁设计规范》(GB50157-2003)基础上，吸纳“北京地铁矿山法区间隧道结构设计方法”研究成果，编制了《北京地铁矿山法区间隧道设计计算指南》，供北京轨道交通建设设计参考。

本指南主要起草人：罗富荣、朱永全、陈 曦、张成满、王占生、宋玉香、贾晓云、李宏建、徐凌等。

编 者 2006年12月

目 录

1 总则 ···················································································· 1 2 设计计算技术指标 ·································································· 2 3 设计计算荷载 ········································································ 4 3.1 荷载分类和荷载组合·························································· 4 3.2 地层压力 ········································································ 5 3.3 地面车辆荷载引起的附加压力 ·············································· 6 3.4 地震荷载 ········································································ 7 3.5 水压力 ··········································································· 7 3.6 邻近地面设施及建筑物压力荷载 ··········································· 8 3.7 人防荷载 ······································································· 10 3.8 其它荷载 ······································································· 10 4 初期支护设计计算 ································································· 10 4.1 一般规定 ······································································· 11 4.2 初期支护结构检算模型······················································ 11 4.3 初期支护强度检算方法······················································ 13 5 二次衬砌设计计算 ······························································· 146 5.1 一般规定 ······································································· 16 5.2 计算方法 ······································································· 16 5.3 衬砌结构温度伸缩缝························································· 19 条文说明 ················································································· 24 1 总则 ················································································ 24 2 设计计算技术指标 ······························································ 25 3 设计计算荷载 ···································································· 25 4 初期支护设计计算 ······························································ 30 5 二次衬砌设计计算 ······························································ 32

1 总则

1.0.1 地下铁道区间主要构件设计使用年限为100年。根据承载能力和正常使用要求，采取有效措施，保证结构强度、刚度，满足结构耐久性要求。

1.0.2 结构设计计算应满足施工、运营、城市规划、环境保护、防水、防火、防迷流、防腐蚀和人民防空的要求。

1.0.3 矿山法区间隧道结构按结构“破损阶段”法，以材料极限强度进行设计。 1.0.4 设计中除参照本指南外，尚应符合《地铁设计规范》(GB50157-2003)等国家现行的有关强制性标准的规定。

1.0.5 本指南适用范围：第四纪地层中的矿山法标准单线区间隧道。