区间隧道结构设计

地铁区间隧道结构设计计算书一、设计任务对某区间隧道进行结构检算，求出内力，并进行配筋计算。具体设计基本资料如下11工程地质条件线路垂直于永定河冲、洪积扇的轴部，第四纪地层沉积韵律明显，地层由上到下依次为杂填土、粉土、细砂、圆砾土、粉质粘土、卵石土。其主要物理力学指标如表1，本地区地震烈度为7度。表1各层土的物理力学指标土的类型厚度（M）重度（KN/M3）弹性抗力系数MPA/M）变形模量E（GPA）泊松比内摩擦角（）粘聚力CMPA杂填土5916500804200005粉土3218900903521001细砂49191001203222001圆砾质粘土522001501803223002卵石土672002002003027003基岩22300250353500412其他条件地下水位在地面以下42处；隧道顶板埋深107M；采用暗挖法施工，隧道断面型式为5心圆马蹄形结构。二、设计过程21根据给定的隧道或车站埋深判断结构深、浅埋；可以采用铁路隧道设计规范推荐的方法，即有0452115上式中S为围岩的级别；B为洞室的跨度；I为B每增加1M时的围岩压力增减率。由于隧道拱顶埋深107M，位于粉土层、细砂层和圆砾土中，根据地铁设计规范1012可知“暗挖结构的围岩分级按现行铁路隧道设计规范确定”。围岩为级围岩。则有0452115045261101651584因为埋深，可知该隧道为极浅埋。107EQSKCRTDWE20（98）1此时裂缝不满足要求，可以增加钢筋截面面积，经重新设计验算，取262,81SMA014054STET032N/8168469/SKSHM则有201105165429TKESFMAX598162040EQSKCRTDWE20（98）1，满足条件由于在裂缝计算中是要求用标准荷载，而现在是用设计荷载进行计算，结果稍微有一些出入，但强度和裂缝都能得到满足。最后的截面配筋图如下参考资料1地铁设计规范GB5015720032铁路隧道设计规范TB1000320053贺少辉地下工程2008年版北京交通大学出版社、清华大学出版社4关宝树地下工程2007年版高等教育出版社5李志业、曾艳华地下结构设计原理与方法2005年版西南交通大学出版社6曾亚武地下结构设计原理2006年版武汉大学出版社7程文襄、王铁成混凝土结构2008年版中国建筑工业出版社三、附录31地下结构课程设计任务书地铁区间隧道结构设计本次地下结构课程设计是进行城市地铁区间隧道的结构设计，涉及“地下工程”这门课的主要理论，通过设计，使学生更深入地掌握所学理论。一、基本要求1、对设计从全局上把握，思路清晰，独立完成全部设计任务；2、设计计算正确无误，图纸清晰，符合规范要求；3、按计划及时上交设计，每位同学的计算参数不同，如发现抄袭者，将记为零分。二、设计任务对某区间隧道进行结构检算，求出内力，并进行配筋计算。具体设计基本资料如下1、工程地质条件线路垂直于永定河冲、洪积扇的轴部，第四纪地层沉积韵律明显，地层由上到下依次为杂填土、粉土、细砂、圆砾土、粉质粘土、卵石土。其主要物理力学指标如表1，本地区地震烈度为7度。表1各层土的物理力学指标土的类型厚度（M）天然重度（KN/M3）饱和重度（KN/M3）弹性抗力系数MPA/M）变形模量E（GPA）泊松比内摩擦角（）粘聚力CMPA杂填土301624500804200005粉土401826900903521001细砂5019271001203222001圆砾土351952751201503225001粉质粘土60200281501803223002卵石土1002002852002003027003基岩2230025035350042、其他条件地下水位在地面以下5M处；隧道拱顶埋深6M；采用暗挖法施工，隧道断面型式为双联拱结构（隧道断面图QJ10JG04）。三、设计过程1、根据给定的隧道或车站埋深判断结构深、浅埋；2、计算作用在结构上的荷载（仅按使用阶段考虑）；3、进行荷载组合；4、绘出结构受力图；5、利用FRAME或SAP或ANSYS或其他程序计算结构内力；6、结构配筋计算和截面配筋图绘制；（隧道结构取最不利截面配筋）7、提交完整的设计书。四、成果提交成果包括两部分计算书和图纸。计算书应规范，包括设计基本资料、详细的计算过程、结构受力图、内力图、配筋计算。图纸应清晰，各项计算符合规范要求且应列出参考文献。32FRAME结构程序054,55,0,0,2,1,1,1,1,11,1,00169,018082,1,03986,217253,1,10595,233204,1,17231,246515,1,24000,252256,1,31000,248267,1,37785,235588,1,43532,215039,1,47737,1707910,1,49545,1162011,1,50842,0568012,1,51230,0024313,1,51329,0509314,1,50526,1053915,1,48758,1564116,1,46299,1976917,1,42781,2381618,1,38821,2684819,1,33469,2943620,1,27499,3075821,1,20407,3053722,1,14345,2866723,1,09262,2566324,1,05072,2163025,1,00071,1848626,1,05072,2163027,1,09262,2566328,1,14345,2866729,1,20407,3053730,1,27499,3075831,1,33469,2943632,1,38821,2684833,1,42781,2381634,1,46299,1976935,1,48758,1564136,1,50526,1053937,1,51329,0509338,1,51230,0024339,1,50842,0568040,1,49545,1162041,1,47737,1707942,1,43532,2150343,1,37785,2355844,1,31000,2482645,1,24000,2522546,1,17231,2465147,1,10595,2322048,1,03986,2172549,1,00,1390450,1,00,0813451,1,00,0223652,1,00,0332653,1,00,0964654,1,00,152081,1,1,22,1,2,33,1,3,44,1,4,55,1,5,66,1,6,77,1,7,88,1,8,99,1,9,1010,1,10,1111,1,11,1212,1,12,1313,1,13,1414,1,14,1515,1,15,1616,1,16,1717,1,17,1818,1,18,1919,1,19,2020,1,20,2121,1,21,2222,1,22,2323,1,23,2424,1,24,2525,1,25,2626,1,26,2727,1,27,2828,1,28,2929,1,29,3030,1,30,3131,1,31,3232,1,32,3333,1,33,3434,1,34,3535,1,35,3636,1,36,3737,1,37,3838,1,38,3939,1,39,4040,1,40,4141,1,41,4242,1,42,4343,1,43,4444,1,44,4545,1,45,4646,1,46,4747,1,47,4848,1,48,149,1,1,4950,1,49,5051,1,50,5152,1,51,5253,1,52,5354,1,53,5455,1,54,2530E7,125E7,5333E3,04,12,12E5,0,0,0,04,0230E7,125E7,10417E3,05,12,12E5,0,0,0,05,0251,1,1,22,1,1,23,1,1,24,1,1,25,1,1,26,1,1,27,1,1,28,1,1,29,1,1,210,1,1,211,1,1,212,1,1,213,1,1,214,1,1,215,1,1,216,1,1,217,1,1,118,1,1,119,1,1,120,1,1,121,1,1,122,1,1,123,1,1,124,1,1,125,1,1,126,1,1,127,1,1,128,1,1,129,1,1,130,1,1,131,1,1,132,1,1,133,1,1,234,1,1,235,1,1,236,1,1,237,1,1,238,1,1,239,1,1,240,1,1,241,1,1,242,1,1,243,1,1,244,1,1,245,1,1,246,1,1,247,1,1,248,1,1,249,1,2,150,1,2,151,1,2,152,1,2,153,1,2,154,1,2,155,1,2,13,551,0,6882,0,0,12,0,6882,0,0,13,0,6882,0,0,14,0,6182,0,0,15,208532,6182,0,0,16,206642,6182,0,0,17,202882,6882,0,0,18,195542,21,0,0,19,184352,21,0,0,110,174572,21,0,0,111,158552,21,0,0,112,146352,21,0,0,113,134142,21,0,0,114,122202,21,0,0,115,111752,21,0,0,116,102492,21,0,0,117,94479,21,0,0,118,87666,1722,0,0,119,83687,1722,0,0,120,0,1792,0,0,121,0,1792,0,0,122,0,1792,0,0,123,0,1792,0,0,124,0,1792,0,0,125,0,1792,0,0,126,0,1792,0,0,127,0,1792,0,0,128,0,1792,0,0,129,0,1792,0,0,130,83687,1722,0,0,131,87666,1722,0,0,132,94479,21,0,0,133,102492,21,0,0,134,111752,21,0,0,135,122202,21,0,0,136,134142,21,0,0,137,146352,21,0,0,138,158552,21,0,0,139,174572,21,0,0,140,184352,21,0,0,141,195542,21,0,0,142,202882,6882,0,0,143,206642,6182,0,0,144,208532,6182,0,0,145,0,6182,0,0,146,0,6882,0,0,147,0,6882,0,0,148,0,6882,0,0,149,0,15,0,0,150,0,15,0,0,151,0,15,0,0,152,0,15,0,0,153,0,15,0,0,154,0,15,0,0,155,0,15,0,0,133内力计算结果15TOTALINTERFORCEELEMENTELEMENTNONODE1NNODE1QNODE1MNODE2NNODE2QNODE2M1045495E03035069E02011464E02042916E03012376E03016422E032027538E03034316E03016422E03026471E03016541E03055106E013023928E03017934E03055113E01023030E03056104E02082076E024021019E03082834E02082076E02020666E03021276E01010886E035020325E03031199E02010886E03019741E03035979E02010651E036021115E03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