ll隧道初期支护专项施工方案.doc
《ll隧道初期支护专项施工方案.doc》由会员分享,可在线阅读,更多相关《ll隧道初期支护专项施工方案.doc(47页珍藏版)》请在三一文库上搜索。
1、is one of the practical form of values. The so-called values refers to the objective things are of no value and the value of fundamental perspective. Different values, peoples behaviour, attitudes, ways are different. People-oriented focus on human value and reality, we need the broadest masses as v
2、alues. Adhere to people-oriented values, is to make the economy more development, improve democracy, cultural prosperity, and live a happier; is deeply concerned that human development and human values, development of social and human development of rational unified, insisted in the material civiliz
3、ation, political civilization and spiritual civilization in the overall advancement of Socialist civilization to a higher level. Also want to see that persons value is not only meet your needs, also is to meet the needs of others and the community. Adhere to people-oriented, to strongly advocate eve
4、ry community member, serve others, beneficial to the community of people. The so-called Outlook, attitude is on the record, including who, how to create a record of achievements, how to evaluate performance, and so on. What values, what kind of Outlook. Adhere to people-oriented Outlook, is on the p
5、remise of respecting the interests and power of people, creating a popular, warm hearts, steady heart performance, creating serve for one officer, the benefit of achievements, and overall construction of well-off society and promoting the all-round development of peoples performance. Achievement eva
6、luation in both economic accomplishments, take another look at the effectiveness of social progress; changes in both urban and rural change; both hard environment to strengthen and take another look at the soft environment improvement momentum of development at present, depending on the potential fo
7、r sustainable development. Leave people to talk about values are worthless and leave people to talk about Outlook is not what the performance. 4. people responded to the starting point of the question, and replied to questions point. Man is the sum of social relationships. We cannot leave the chichu
8、anyongdu, housing, tourism and entertainment, entertaining, and even certain political, economic, cultural and social environment, and so on. Due to human needs, all walks of life will come into being. People create for their survival, and continue enjoying the results of the construction. Colorful
9、in the transformation of the people of the world, community vitality in the creation of man. Therefore, any work we do, the starting point is human, what are people. Us speed up development, the core of which is to meet the needs of people, including survival needs, emotional needs and self-actualiz
10、ation needs. It should be noted that people are not machines, not the slave of an object, not to be controlled. People have their own personality, has its own personality, has its own dignity. Person in need of care, you need to understand, need to meet. It is said that in the agricultural society,
11、people plant; in industrial society, man is an animal; the information society, return浙江省交通工程建设集团有限公司义乌疏港高速公路工程BT项目(K2+700K8+434)段 隧道初期支护专项施工方案 目录1.编制说明31.1编制依据31.2编制目的31.3适用范围32.工程概况42.1项目简介42.2隧道简介42.3技术标准42.4地质、水文、气象情况52.5周边环境和临建布置52.6施工准备情况73.施工组织计划93.1施工进度计划93.2工料机组织计划114.初期支护施工工艺144.1超前小导管或超前锚
12、杆支护144.2拱架加工和安装164.2.1拱架加工要求164.2.2拱架安装164.3中空注浆锚杆支护184.4钢筋网片支护204.5喷射砼支护205.施工质量保障235.1质量保证体系235.2质量保证措施235.3施工质量标准245.3.1超前小导管或锚杆245.3.2刚拱架245.3.3喷射混凝土255.3.4锚杆支护255.3.5钢筋网支护266.安全保障措施276.1组织保障276.2安全技术措施316.3应急预案356.4施工安全措施437.文明施工措施458.环境保护措施471.编制说明1.1编制依据本方案依据浙江省公路水运危险性较大分部分项工程安全专项施工方案管理办法浙交20
13、10236号文件、义乌疏港高速公路工程招标文件、义乌疏港高速公路工程两阶段施工图设计要求编制,并遵照如下标准和规范:1、中华人民共和国安全生产法 ;2、公路工程施工安全技术规程(JTJ076-95);3、公路隧道施工技术规范(JTJ F60-2009);4、公路工程技术标准(JTG/T B01-2003);5、公路工程质量检验评定标准(JTG F80/1-2004);6、公路工程国内招标文件范本(2009年版);7、公路项目安全性评价指南(JTG/T B05-2004)。1.2编制目的指导隧道初期支护施工,切实落实有关建设工程安全技术标准、规范,加强工程项目的安全生产监督管理,预防施工安全事故
14、,保障人身和财产安全。1.3适用范围义乌疏港高速公路工程雄岗山隧道和白山尖隧道初期支护作业。2.工程概况2.1项目简介义乌疏港高速公路主要有路基、路面、桥涵、隧道、隧道机电、监控、通信设施、交安设施、房屋建筑、绿化工程以及照明工程等施工内容。主线共设桥梁(含分离立交及互通区主线桥)11.2356km/22座,其中特大桥约6900.2 m /3座;大桥约3960.6m /14座;中桥约376.3m /5座;隧道约1.682km /2座,其中长隧道1.251km /1座;互通式立体交叉6处(其中枢纽式互通立交2处)、收费站4处、养护工区1处、管理分中心1处。同步建设堂阁互通连接线长1.45km,桥
15、梁400.9m/2座,其中大桥约358.2m/1座;同步改造苏福路3.15km。主线设计速度100Km/h,杭金衢高速至湖门互通起点段采用双向四车道,路基宽度26.0米,湖门互通至甬金高速段采用双向六车道,路基宽度33.5m堂阁互通连接线采用一级公路标准设计兼顾城市道路功能,设计速度80Km/h,路基宽度36m,苏福路按原标准改造。路面采用沥青混凝土路面,路面标准轴载:BZZ-100KN;汽车荷载等级:公路-级;设计洪水频率:主线特大桥1/300,其余主线桥涵和路基及连接线大、中桥1/100,连接线等小桥涵和路基1/50。2.2隧道简介本项目本设隧道2座,分别是小净距雄岗山隧道和分离式白山尖隧
16、道。雄岗山隧道出洞口为曲线,曲线半径为右线R=1850m,左线R=1300m,纵坡为单向坡,右线纵坡1.99%,左线纵坡1.99%。白山尖隧道出洞口为曲线,曲线半径为右线R=4500m,左线R=4000m,纵坡为双向坡,右线纵坡2.9%、-1%,左线纵坡2.735%、-0.9%,无超高。明洞采用明挖施工,暗洞采用新奥法施工。本项目隧道工程洞内岩质多为中风化凝灰岩,岩石裂隙较为发育且较破碎,分段区分开挖方法及衬砌类型。其中雄岗山隧道:左洞V级围岩138米、IV级围岩253米,合计416米;右洞V级围岩122米、IV级围岩278米,合计431米;白山尖隧道:左洞V级围岩600米、IV级围岩629米
17、,合计1255米;右洞V级围岩640.6米,IV级围岩578.4米,合计1251米。两座隧道地质条件复杂,雄岗山隧道主要穿越强中风化凝灰岩且有断裂构造,围岩BQ值偏低;白山尖隧道长度大于1000米,地质条件复杂,穿越多条断层带,岩体挤压破碎,在隧道左线桩号ZK6+020上方还有座太平寺庙,寺庙地面与隧道拱面高差55米,平面水平距离5米。2.3技术标准1、隧道均采用双洞单向行车三车道型式(上下行分离),几何线性与净空按100km/h设计,照明设计速度按80km/h设计;2、隧道净空断面为三心圆,行车道宽11.25米,检修道宽:左0.75米、右1.00米,隧道建筑界限净高:H-5.0m,检修道净高
18、:h-2.5m。2.4地质、水文、气象情况1、地质两座隧道都位于丘陵区,主要穿越强中风化凝灰岩。隧道进出口覆盖层较薄,洞身围岩多为中风化凝岩层、灰紫色凝灰岩,最大埋深(雄岗山隧道98米/白山尖隧道150米),节理裂隙发育,岩石较破碎,呈碎石镶嵌结构,同时围岩受断裂构造影响,整体性差。2、气象隧道处于亚热带季风气候区,四季分明,气候温和,雨量充沛,日照多,空气湿润,夏冬季长,春秋季短。年平均气温在17C,年平均无霜期243天左右,霜期122天左右。降水量的季节变化和年际变化都很大,年平均降水量在11001600mm之间。年平均降水天数为153天。灾害性天气如旱灾、洪水、冰雹等也时有发生。3、水文
19、区域内河流属钱塘江水系,主要有义乌溪、东青溪、华溪、后溪、六都溪等,隧道自身范围内主要接受大气降水补给和地下水,地下水主要为松散岩类孔隙水和基岩裂隙水。沿线取水点较多,雄岗山隧道进口左线左侧有一水库可作为施工用水,雄岗山出口与白山尖进口之间有池塘、水库,白山尖隧道出口有红旗水库(水域面积较大)。2.5周边环境和临建布置雄岗山隧道后宅端位于前傅村,地处偏僻山坳中,洞口离居民距离1000m以上,基本无施工干扰,考虑单向施工。工人宿舍、办公室和拌合楼拟设置在K3+900处右侧,占地9.8亩;钢筋加工棚、材料仓库、空压机房、变压器等拟设置在K3+900处隧道左侧,占地15.6亩。空压机房内共设置20m
20、3空压机4台,500KW和400KW变压器各一台,能满足雄岗山隧道后宅端左右幅隧道同时施工用电。在K3+800左线左侧设置1号弃渣场,占地32亩。 钢筋加工棚 工人宿舍拌合楼图2.5-1雄岗山隧道后宅端位置图白山尖隧道后宅端位于马交塘村,地处偏僻山坳,洞口离居民距离1000m以上,基本无施工干扰。工人生活区和拌合楼拟设置在K4+550处左侧,占地11.7亩;钢筋加工棚、仓库、空压机房、办公区等拟设置在K5+010处隧道右侧,占地13.4亩;共设置20m3空压机4台,500KW和400KW变压器各一台,能满足白山尖隧道后宅端左右幅隧道同时施工用电。在进口左洞左侧红线外设置2号弃渣场,占地40亩。
21、 工人宿舍拌合楼 钢筋加工棚办公室加工棚筋图2.5-2白山尖隧道后宅端位置图 白山尖隧道廿三里端位于洛界村,洞口距离最近居民房不到100米,K6+290处上放有220KV的高压线横穿过隧道,在左线K6+020处上面有座太平寺,地面与隧道拱顶高差55米,平面水平距离5米。工人宿舍室、办公区、钢筋加工棚、拌合楼等拟设置在K6+400处左侧,占地19.2亩,共设置20m3空压机4台,500KW和400KW变压器各一台,能满足白山尖隧道廿三里端左右幅隧道同时施工用电。在出口后左线左侧红线外设置3号弃渣场,占地40亩。 拌合楼工人宿舍 钢筋加工棚办公室图2.5-3白山尖隧道廿三里端位置图 2.6施工准备
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ll 隧道 初期 支护 专项 施工 方案
链接地址:https://www.31doc.com/p-2127102.html