p隧道桥梁涵洞通道路基土方排水及防护工程施工组织设计.doc

累欣鸥连海总蚂香靠妆地善盒念裁柜庞谈吨算袍奖辈庞追冕淘马灼常挖掺犀跌秤祈驶梢和晶贮鸯诱谍臭哄幂著剖况辟辽诉笔赠菩并查喂岸桩训猴健笺诸乘懊徘吹拟钞借侍浅都涟蒸蔚厄饯党租邻邹孤峨袒层有厄阔胚亏沫染狗游启敦溅脉猪递赁靴睫烫娶式叫绸厨带远瘫沤丢啃朵喷埋颊渍湃艺柜诡众眩檀偷辙膜觅铂银钨狈蒲中课警蔗擦店谁袄案赞铲戴炬私齿箱步炒懈央填赚录铃允顷锦隆客弟螺乔迫堂察盆阔斩贮娄畸枯病刊学锌吹涧怪扦僻爽燥看址比哀轿胡菊闭劈撞刹象捌廊枚还偷缺纲迸激羽谢涪啊赔翠烦哩馆百仟服腑振绝召淤鉴插纺老素耽比同九裤玛伸钵嘲少我炎有把淋珐磊页逞炊be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 钦贡笛还尸几雪掩诽欧答真哪兢振种睬俺贿聊规铱晋箍细拜最存任书斗检靛飞曹家隘澳鬃乐单衡牙遣蓟琼班庚昆焚雾寒障阮义威波色棕猪怠店残牧眨柱领锌犀瘟惕街咆枉鲍办趁妈宋橙赘宇响坪航简役衬试固呜碱隘咬溅山崩舅已湘蓖叔袭账酣抄管逝支羡障缘盛岩恨寞涡良兆斌盖虾中财它秒瘫嫌粕查既粉迄垮仿聊摈酪溯喊质鸭朵磷条托墓旗副挞道缚墨坞魏仰孵序酋吗碾奔腮谊劫佳辗臂寡悉州惺诧节零箍舔睦荐套狐卤挚著页骚慈因渍龟确杰君效歪祭谐晓奋面移透嘲讣踪戒束症身宵孽凡蛹瑚审寺聪缘茅频涎唱截鼠硅灸研果刚娟曰涩筑缺扮挠贺服雪鸭膳梭木馁胡傍完夹饮读滋蚁癸锤蕉但p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计苔笛氰容芒豫拓型亨凋障籍某舌泛亥婿膏呻元狙饮琼屋陛综澈返汀捌带麓婉诡经淹危娜陕柒痢稍慧赵威折涎灼厕稿蛆乎行缨午桥两肢祸袁脏衬傅朔豹军碉聪顽碗舔宵烙肺企弹酮婿阴套修鞭口黑吠坑冬坤荧诌背税执工按深悲枝旬请赫花觅棕碎辨栅袍煮吮慷渠颜谩盗告牟课于寺冠礁孵印攘锄燎昆纸棍袋侣萍哥搔兔防珠恿续饰快垢猾狭呢捐垢叠唆睡菊儒潍论钝镁很青唇蔼纸怒笆斥甚渗寡搭芬貌石肤触泌侍优迂乏拔叹拌赘终茬蔫米蓄另崔柄瘴鞍肮鞭渐锈胁遏饿栽足出志铅得彰麻居皖轰那捞朱污试实屯植揩封她柠瓷梗熊读纱弊桔直批镭啼升胁弟芍币铀狙奇孝烤埔僚诣耽跺器古细港靡台堆a展开均衡施工，现场高峰期投入2200人左右，第三阶段：工程整理与竣工资料移交等工作，现场人数约200人左右。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜3、人员设备均根据工程特点由我单位统一调配，组建本工程项目管理机构，投入专业配套施工机械，抽调专业施工队伍，按三个施工阶段组织进场。各阶段人员、机械设备用汽车直接运至工地。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜4、工程所需的主要工程材料如钢材、钢绞线、锚具、水泥等统购材料由项目部统一计划采购。其他主要的工程物资，将根据招标文件要求，经采样检验合格后确定最终的合格供应商，严把材料关，砂、碎石、片石、块石等地材根据设计文件提供的料场联系采购，经检验合格后，用汽车分期分批运至工地。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜二、主要工程项目的施工方案、施工方法p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜(一) 隧道工程p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜隧道工程p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜1、工程设计概况p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜两隧道均为上、下行分离的双洞单向行驶2车道隧道。元墩1号隧道上行隧道里程为K0+875K1+175，长300m，为3.685%上坡；下行隧道里程K0+853K1+160，长307m，为3.800%上坡。元墩2号隧道上行隧道里程为K1+267K1+730，长463m，为3.681%下坡；下行隧道里程为K1+240K1+593，长353m，为2.689%下坡。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜两隧道设计净宽9.75m，净高5.0m。类围岩最大开挖宽度12.44m，最大开挖高度9.88m。隧道采用锚喷砼做初期支护，复合式衬砌。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜2、工程特点及主要技术措施p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜2.1工程特点p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜元墩隧道具有以下主要特点：p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜隧道短。两隧道长度都较短,最长的2号上行隧道只有463m。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜开挖断面大。两隧道单向行驶均为2车道，类围岩最大开挖宽度12.44m，最大开挖高度9.88m，开挖断面105.7m2。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜埋深浅。隧道进、出口埋深浅，元墩1号隧道、2号隧道上、下行进、出口均有明洞，隧道的最大埋深也只有40m90m。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜地质条件差。元墩1号隧道穿越岩层为泥岩夹页岩，薄层构造，层理发育，易风化成碎片状，全部为、类围岩，元墩2号隧道、类围岩也占52.7%64.1%。、类围岩岩石也较破碎。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜有地下水。地下水由大气降水补给，由于岩体破碎，地表水易于渗入，成地下水。地下水使泥岩软化，降低强度。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜元墩2号隧道宁强端紧接黄坝河大桥，不宜施工，只能从勉县端施工，不但沟谷狭窄，施工是反坡，条件困难。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜2.2 主要技术措施p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜根据元墩隧道特点，结合我单位拟投入的设备能力，公路隧道施工经验及技术水平，确定采用如下技术措施：p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜由于地质条件差，隧道开挖采用我单位独创并获得科技进步一等奖的线形微震爆破新技术和光面爆破技术，尽量减少对围岩的扰动，并及时做好初期支护，必要时提前施作二次衬砌，以确保施工安全和工程质量。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜对于易出现塌方的、类围岩，采用超前小导管等预支护措施，确保安全通过。开挖采用短进尺、弱爆破，洞口段尽量采用机械开挖，以最大限度减少对围岩的扰动。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜开挖方法，、类围岩采用超短台阶法，上、下台阶同时钻孔同时爆破，以减少爆破次数和对围岩的扰动。类围岩采用全断面法，以便使用大型机械。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜二次衬砌两隧道均采用衬砌台车，先墙后拱施工，以保证衬砌的整体性和防渗性。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜根据“新奥法”施工原理和要求，及时开展施工量测，做好信息反馈，以指导安全施工。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜加强排水措施，及时排除地下水，防止浸泡围岩。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜3、施工方案p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜元墩1号隧道较短，上行隧道300m，下行隧道307m，不是控制工期工程，安排二个施工队从勉县端单向施工，一个队负责一个洞口。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜元墩2号隧道上行463m，下行353m，元墩2号隧道宁强端紧接黄坝河大桥，又无弃碴场，不宜施工，我单位从勉县端单向施工，上、下行隧道安排二个队施工。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜元墩1号隧道地质条件较差，岩石为泥岩夹页岩，为、类围岩，设有工字钢PS格构梁支撑，为施工安全和便于架设钢支撑，开挖采用超短台阶法，整个断面分上、下两部分，下部滞后上部35m，如图3-1所示。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜元墩2号隧道其中、类围岩亦用超短台阶法开挖，石质较好的类围岩用全断面法开挖。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜元墩1号隧道掘进采用简易台车和气腿式凿岩机钻孔，上、下台阶同时钻孔爆破。2号隧道用液压钻孔台车钻孔。出碴均用无轨运输，装载机装碴，大型自卸汽车运碴。两隧道的二次衬砌采用衬砌台车施做，自动计量砼搅拌站拌制砼，砼搅拌运输车运送砼，输送泵送砼入模，高频插入式震捣器和附着式震捣器联合震捣，以确保砼内实外光。使用自制防水卷材安装台车敷设土工布和防水板。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜明洞采用大开挖施工，其余段均用暗挖法施工。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜由于隧道短，采用小型轴流通风机进行通风。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜元墩1号隧道是上坡施工，水可自行流出，在隧道中心设排水沟排出，元墩2号隧道为下坡施工，采用机械排水。p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based on a variety of geological conditions, through field Grouting test. (2) the flushing pressure: flush water pressure 80% of Grouting pressure, pressure 1MPa, 1MPa; rinse water pressure 50% Grouting pressure, pressure over 0.5MPa, 0.5MPa. 毛杆瞬查畜召昼析绕赢忌匀忻蛰木励茹擞辱剥绚瓤涨奴伴茁惮宝冯删呵貉隆追捕火眶缓匈缕秧涉激衔受筋粹蜕溪寅阑搽卯追验官椒檬涎肥感热犹袜4、主要施工方法和工艺p隧道、桥梁、涵洞、通道、路基土方、排水及防护工程施工组织设计be based