小净距分离式隧道洞口及明洞专项施的工方案.doc

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1、First compliance review of the application of the appraisal Committee, only through the compliance review of the application to take part in a detailed review. 8.1 application compliance review: does not meet one of the following conditions, procuratorial Agency to submit application through complia

2、nce reviews, be invalidated: (1) application of the formats, contents, meet the requirements of selected files, powers of Attorney, declarations by the legal representative and the tender agent application to meet the requirements; (2) licence and a bidding agent qualifications meet the requirements

3、; (3) the similar project tendering agency agent number and provide proof of material compliance; (4) the tendering Agency intends to put into this project the number of professionals to meet the requirements; (5) are intended to the agent of the project as a project manager has similar projects the

4、 number of and references to meet the requirements; (6) no fraud case. 8.2 application review in detail the Evaluation Committee through compliance reviews will be selected for detailed review of the application. 8.2.1 tender agent institutions similar project tender performance requirements (16 poi

5、nts) tender agent institutions similar project tender performance 16 points, by two part composition (1) agent similar project of cumulative bid amount scored calculation rules for: Agent water project bid amount (on January 1, 2007 has has bid notice for associate) cumulative each reached 100 milli

6、on Yuan have 2 points, water project cumulative bid amount scored up not over 6 points. In addition, completes a bid worth more than 500 million yuan in total 1 minute, but other items score accumulated winning amount up to a maximum of 6 points. (2) calculation rule for the number of agents similar

7、 projects: proxy bid amount (since January 1, 2007 winning notice shall prevail) bidding projects in more than 50 million Yuan by 2 points, but the Agency projects the number of scores up to 3 minutes. 8.2.2 to be agents of the construction project as a project manager in the same project performanc

8、e (10 points) Project Manager agent performance scores including agents of the bidding agencies of similar projects, as well as in other similar project tendering agency service agent during performance. Total 10 Project Manager agent performance, made up of two parts (1) acting like the accumulated

9、 winning amount calculation rule: agents for water conservancy project bid amount (since January 1, 2007 winning notice for example) cumulative average reached 100 million Yuan 3 but scored no more than 5 minutes. (2) calculation rule for the number of agents similar projects: proxy bid amount (sinc

10、e January 1, 2007 winning notice for example) in the more than 50 million Yuan water conservancy project period of 3 minutes, but scores the number of agents similar projects up to a maximum of 5 points. Project Manager demonstrated to provincial-level and higher peoples Government or the developmen

11、t and Reform Commission published the winning bidder on the designated media publicity shall prevail. 8.2.3 staff requirement (25 points) 1, to the construction project serving personnel, 4 years experience in tendering agent, 2 points per person, 2 years experience in tendering agent .Pig is not a

12、pig. With domestic international market and technology big environment of changes, as China traditional industry of pig production of job way and profit way are requirements related industry for resources integration, to quality security for premise, regulation based farming, and management cost and

13、 the production, and sales cost, go standardization, and scale, and intensive, and market road, fast upgrade whole industry chain of regulation capacity, market competition capacity and anti-risk capacity. First, industry analysis (a) the basic situation in China is a traditional hog production and

14、consumption country, 2008 46.15 million tons of pork, pig stock 462.64 million head by the end pig slaughter 609.6 million. National pig industrys annual production value at around 650 billion yuan, nearly 50% per cent of annual output value of animal husbandry. Sichuan province in 2008 produced 6.5

15、2 million tons of pork, with 694,000 tons of Chengdu city, live pig sell 10.46 million, first 15 Vice-provincial cities in the country. The whole nation advantage regional planning (2008-2015) there are 437 counties (cities), 55, Sichuan, Chengdu has 7 (including in pengzhou). International pig indu

16、stry mainly include the European Union, the United States, and Canada, and Brazil and other absolute scale of animal husbandry industry and technology developed countries. Market 1, the domestic market from Chinas meat consumption habits and economic analysis of the development situation, the emerge

17、nce of new trends in the market of domestic pork and its products. Docking is a pig production and sales more closely. The Yangtze River Delta, Pearl River Delta and the Bohai rim economic developed area industrial structure adjustment gathered pace, two or three industries to the Central and Wester

18、n bias. Second, the rigid domestic consumption growth. For a long period, pork is still the largest variety of meat consumption in China, the absolute consumption continues to grow. Especially in the vast rural market growth potential. Third, market for pork and higher product quality requirements.

19、Pollution-free pork safety and health has shown a very good market prospects. Four is the market changing. Currently, cold meat, more and more varieties of meat and pork meat products, which accounted for a large proportion of pork consumption, stores, chain stores, supermarkets and other marketing

20、methods is on the rise, and transport has been extended to more than 2000 km in RADIUS. Chengdu is an important River pig resource market, the citys commercial rate reaches above 60% of live pigs, pork and raw materials primary processing products in the domestic and international reputation is high

21、. Western hog trading center in Chengdu and provides disease-free areas of construction in order to further accelerate the development of swine industry realizes space and conditions. 2, the international markets at present, annual volume of trade in live pigs in the world year around 18 million, ab

22、out 6 million tons of pork trade. A large net exporter of pork is mainly the EU and North America,-importing countries mainly in Asia, Japan, and Korea, and Singapore, the Philippines, Hong Kong and other countries and regions, as well as Russia, about 3 million tonnes were imported. It is predicted

23、 that the world meat consumption increase of 80% in Asia in the future, our country has obvious geographical advantages, export potential. With the advancement of live pigs superiority industry belt construction, animal disease .隧道洞口及明洞专项施工方案单位: 中交一公局四公司XX三分部二一二年七月二十二日4.1 application of the Chinese

24、language application for proxy bidding agency application system. 4.2 bidding agent applications should be submitted by the Agency included in the 5th chapter of the content, and than select file asked to provide appropriate documentation. 4.3 proxy application shall affix its official seal coding a

25、nd page by page in the specified location. Agent a copy of the application shall have to number the pages and signed original copy (copy) (including supporting documents), and copy should be exactly the same. 4.4 application there shall be no loose pages. 4.5 agent application should be complete wit

26、h indelible ink (powdered) prints, the agent shall not alter any page of the application. 4.6 bidding agencies offer should be based on the interim measures for the management of tendering agents service charges (meter prices 20021980) rules of the Nineth, tender agent service charges using the diff

27、erence progressive billing rate. Charges in accordance with the tendering agents service charges and, in conjunction with the provisions of the specific circumstances of the project shall not be floating up and down-floating range must not exceed 20%, otherwise the application cannot pass compliance

28、 checks, be invalidated. Due to bidding agency selection and principal-agent contracts signed during charging base bid amount has not yet been produced, it can only be according to the rates of price, bid and the bid amount determines after the end, controlled response rates calculated shall pay ten

29、der fee (tender agency fee accounts for the actual bidding agent item for fares). Than the selected person tendering agents service charge control the upper and lower limits, Cap for the State Development Planning Commission of the interim measures for the management of tendering agents service char

30、ges (meter prices 20021980) of tendering agents service fees under 100%, the lower limit for the State Development Planning Commission of the interim measures for the management of tendering agents service charges (meter prices 20021980) of tendering agents service fees under 80%. Tendering agents s

31、ervice charge base should include the following tenders: construction, supervision and material over the above tenders are expected to be important, with each tendering agency entrusted with tender bid amount as a base for a separate computation of tendering agents service fees. Tendering agents ser

32、vice fee payment in accordance with the General Office of the State development and Reform Commission on tendering agents service charge of notification on the relevant issues (the change price 2003857). Sale of prequalification documents and solicitation documents going to choose all, pricing shoul

33、d be based on the principle of profit not files, must not violate the relevant provisions in the price Department. 4.7 requirements in the form of application proxy application shall be prepared in the 5th chapter of the format. Application of various supporting documents should be requested by the

34、selection of files grouped by order. Comparison and selection of the bidding agencies must provide supporting documents required by the file; the file you selected does not have the required supporting documents, bidding agency acknowledged the need to provide, or you can provide. Proxy application

35、shall be bound, and page-by-page coded in the order. 5th chapter application format notes: bidding agent .33目录1 编制依据32 工程概况32.1工程简介32.2洞口稳定性评价32.3气象、水文42.4工程数量表52.5主要技术标准52.6隧道洞口及明洞工期安排63 总体施工技术方案63.1测量放样63.2洞顶及洞口排水系统施工63.3清表63.4边坡、仰坡开挖63.5搭设工作架、安装卷扬机73.6钻孔73.7锚杆安装及注浆73.8铺设钢筋网83.9喷射砼83.10标出隧道洞室轮廓线83

36、.11锁脚锚杆83.12明洞工程83.13洞门83.14注意事项及异常现象处理93.15爆破施工方案94 施工工艺流程及工艺要点104.1工艺流程104.2 工艺要点115 施工布置（总体布置图见附录一）135.1施工场地、便道布置135.2施工及生活用水135.3施工用电135.4炸药库（K37+815左侧）146 人员、设备安排146.1隧道施工人员配置146.2机械配置157安全措施177.1安全生产目标177.2安全管理体系框图187.3安全管理体系组织机构197.4危险源的辨识197.5管理措施（危险源的防范）208 环境保护计划及措施218.1环境保护计划218.2环境保护措施23

37、9 文明施工措施25隧道洞口及明洞1 编制依据本专项方案在符合我国国家相关法律/法规/条例、XX市相关规定的基础上，主要以下列文件和资料为依据进行编制：（1）XX市交通规划勘察设计院编制的XX至XX高速公路（XX县至XX段）两阶段施工设计图及相关文件；（2）国家现行技术规范及设计技术标准：公路工程技术规范（JTG B012003）公路隧道施工技术规范（JTG F602009）公路工程质量检验评定标准（JTG F80/12004）（3）局及公司高速公路建设项目的施工经验和拟投入本项目的生产资源；（4）我部对本项目现场和周围环境调查掌握的有关资料；（5）本工程的质量标准和暂定工期及我项目的创优规划

38、、工期目标等。（6）XX三分部实施性施工组织设计、XX隧道施工方案等。2 工程概况2.1工程简介XX隧道起讫桩号为：LK38+302.05LK41+264、K38+300K41+274，左洞长度2961.95m，右洞长度2974m，其中LK38+302.05LK40+815.728(K38+300K40+817.951)位于XX境内（左洞长2513.678m，右洞长2517.951m）。明洞累计长度39.3m，其中左洞21.65m，右洞17.65m，左线级围岩及浅埋段累计占88.2%，级围岩累计占11.8%，右线级围岩及浅埋段累计占87.4%，级围岩累计占12.6%。隧道净距3016.37m，

39、为小净距分离式隧道。进口采用削竹式洞门。2.2洞口稳定性评价本分部施工的为进口（XX端）洞口，隧道进洞口位于斜坡上，斜坡坡向7090，坡角2030。隧道呈直线进洞，洞轴线与斜坡走向交角80左右，与岩层走向交角10。斜坡零星分部厚度01mm的残坡积层粉质粘土，呈松散结构；基岩为侏罗纪中统沙溪庙组紫红色砂岩为主，夹灰色薄层砂岩、粉砂岩，泥岩为极软岩。位于任市向斜北西翼，岩层产状17513，中厚厚层状，层间结合一般较差，强风化层厚24m，中风化岩体较完整。岩体发育二组裂隙：35080；28075。地下水贫乏，雨后可能有少量渗水呈滴状渗出。洞口段未见崩塌、滑坡、泥石流等不良地质现象，天然斜坡稳定。隧道

40、开挖将在洞前及两侧一带形成人工岩质边坡，左侧坡高最大11.5m，右侧坡高最大7m，根据赤平极射投影图分析:洞口临时开挖掌子面为逆向坡，其稳定性受控于岩体强度，只要削坡缓于63时，洞口临时开挖掌子面稳定；左侧边坡稳定性主要受控于裂隙1及岩体强度，按设计坡率1：0.75放坡后，边坡稳定；右侧边坡稳定主要受控于层面裂隙，因岩层产状整体平缓，开挖边坡整体稳定。但因人工开挖、爆破、坡顶加载等工程活动及裂隙水的影响，易导致潜在破裂面抗剪强度指标降低，导致边坡失稳。总体而言，隧道口地质稳定性较差。2.3气象、水文隧址区属于亚热带季风气候区，春早，夏热，秋雨绵，冬暖而多雾。年平均气温16.618.7，极端最低

41、气温-4 .5 2002年1月12日），极端最高气温422006年7月25日）。无霜期长，多年平均为108306天。气候温暖湿润，雨量充沛。多年平均降水量1224.7mm；春季35 月）雨量为331.3mm，夏季68为502.5mm，秋季911月）为333. 3mm，冬季122月）为54.6 mm。其中59月降水量占全年降水的70%， 9月份出现高峰值，占全年降水约15. 6%。该区地处大巴山迎风面，常形成雨量中心，日最大雨量曾达210.5mm2007年7月22日）。三日最大雨量357.7mm(2007年7月2225日)。隧址区地表水系属长江支流小江支流南河水系，平面上水系呈树枝状，汇于南河，

42、南河是区内最大河流，也是地表水的最低排泄基准面，南河由西南流向北东于XX县城区汇入小江。区内地表水包括南河及支流河水、水库水、堰塘水、耕田地表水等。隧址区大的地表水体主要有XX水库、XX水库、XX水库及隧道左侧沟水。XX水库位于LK40+400以南50m，XX水库位于K39+800以北约350m，XX水库位于K38+300以北约370m；隧道左侧约200m沟内有常流水，流量约1200m3/d.2.4工程数量表XX隧道洞口工程数量表编号项目材料单位左线主洞右线主洞左右线合计明洞/洞口明洞/洞口1洞口及明洞工程明洞支护C25砼拱墙m3281.2215496.22C25砼仰拱m3120972173C

43、15片石砼仰拱填充m3117.393.4210.74碎石盲沟m4335795HRB335级钢筋Kg2117116715378856HPB235级钢筋Kg96537489171417洞口洞口挖方土方m32992625618石方m32659295956189施工支护C20喷射砼m343357810砂浆锚杆(22)m1572982255411钢筋网(6.5)kg936717165312装饰天蓝色防水涂料m229295813防护绿化排水M7.5浆砌片石m325015340214三维网植草(树)护坡m28351013184815管沟C25砼m321214216HPB235级钢筋Kg14714729417

44、HRB335级钢筋Kg777715418M7.5浆砌片石m359.665.2124.819明洞回填耕种土m334120054120粘土隔水层m317210227421碎石土m3715374108922M5浆砌片石m3128982262.5主要技术标准(1)公路等级：双向四车道。(2)隧道设计速度：80km/h。(3)隧道建筑界限：10.25（净宽）*5（净高）。(4)隧道路面横坡：单向坡2%(直线段)，超高不大于3%。(5)隧道内最大纵坡：3%；最小纵坡：0.3%。(6)洞内路面设计荷载：公路级；(7)隧道防水等级：一级；二次衬砌砼抗渗等级不小于S6。2.6隧道洞口及明洞工期安排 左洞洞口及明

45、洞：2012年8月1日2012年9月9日； 右洞洞口及明洞：2012年9月1日2012年10月5日。3 总体施工技术方案3.1测量放样依据隧道洞口设计坡比，结合实际地形，确定出隧道洞口边坡、仰坡实际开挖线，并做出明显标记。3.2洞顶及洞口排水系统施工为了方便洞口排水，避免雨水直接冲刷洞口，在洞顶布置洞顶水沟，并根据洞口地形、地貌、汇水面积及雨水排泄通道，在洞口边仰坡以外5m的适当位置设置洞外截水沟，截水沟开挖以机械为主，人工配合修整，修整后立即砌筑，并用砂浆抹面；在两端截水沟增设相应端面尺寸的排水沟，将洞口排水系统与路面排水系统连接为一体。3.3清表采用挖掘机配合人工清除洞口原地面的植被，有可

46、能滑塌的表土及危石等，保证刷坡时的顺利施工。3.4边坡、仰坡开挖采用圆角法，根据测量放样所定出的边坡开挖线，选用操作熟练的机手，利用挖掘机自上而下逐段开挖，不得掏底开挖或上下重叠开挖；石质地层仰坡需要爆破时，应以浅眼松动爆破为主，局部也可采用人工配合修整，开挖时要随时检查边坡和仰坡，如有滑动、开裂等现象，应适当放缓坡度。开挖后边坡坡度不陡于设计值。3.5搭设工作架、安装卷扬机上级边坡开挖后，利用仰坡平台与坡面，用钢管搭设简易施工架，用于边坡钻孔、挂网、喷砼；在管架上安装滑轮，穿上卷扬机钢丝绳，在适当位置安装卷扬机。3.6钻孔测量放样定出锚杆孔位,用油漆做好标记。人工手持风钻钻孔，钻头尽量与岩层

47、主要结构面垂直，不宜平行岩面；孔径及孔深要满足要求。3.7锚杆安装及注浆1)砂浆锚杆将水注入牛角泵内，水占泵体积的2/3，初压水和稀浆湿润管路，然后再将已调好的沙浆倒入泵内，将注浆管插至距孔底510cm处，堵塞孔口，将泵盖压紧密封，就绪后慢慢打开风阀开始注浆，在气压推动下，水在前，砂浆在后，水湿润泵体和管路，引导砂浆进入锚孔。锚杆头在孔内就位后，将堵塞孔口水泥纸掀开，随即迅速将杆体插入并安装到位。若孔内无水泥砂浆溢出，说明砂浆不足，应将杆体拔出重新灌注后再安装锚杆；锚杆杆体插入孔内的长度不小于设计规定。锚杆安设时，不得随意敲击。2)中空注浆锚杆先安装好锚头再将杆体送入锚孔并推到预定位置，保证锚杆体位于锚孔正中间，检查锚杆体在孔内的固定情况；将止浆塞套入锚杆体并封住锚孔外端口，以防止砂浆外溢。用注浆接头将锚杆体与注浆泵相连，安装锚杆体垫板和螺母，若铺设有钢筋网，可利用垫板将钢筋网固定。注浆时宜选用额定工作压力不小于1.5MPa的注浆泵，砂浆标号按设计(无设计时不低于20号)。3)小导管注浆导管需