r北青区间盾构小净距施但工方案小净距施工方案.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 .西安市地铁三号线TJSG-9标北青区间盾构小净距施工方案编制人: 审核人: 审批人: 中铁电气化局集团有限公司西安地铁三号线TJSG9标项目经

24、理部2014年4月4.1 application of the Chinese 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 applicatio

25、n shall affix its official seal coding and 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

26、agent application should be complete with 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, ten

27、der agent service charges using the difference 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%, otherwis

28、e the application cannot pass compliance 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

29、 response rates calculated shall pay tender 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 man

30、agement of tendering agents service charges (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 se

31、rvice fees under 80%. Tendering agents service 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 a

32、gents service fees. Tendering agents service 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 docu

33、ments going to choose all, pricing should 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 supporti

34、ng documents should be requested by the 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

35、, or you can provide. Proxy application shall be bound, and page-by-page coded in the order. 5th chapter application format notes: bidding agent .目 录一、编制范围和依据31.1 编制范围31.2 编制依据3二、工程概况32.1 工程简介32.2 工程地质、水文概况42.2.1 地形、地貌42.2.2 场地地层岩性特征42.2.3 水文地质特征5三、施工准备及组织机构53.1 施工人员准备53.2 施工设备准备53.3 水、电接口63.4 施工管理组

36、织机构6四、施工方案74.1 总体施工方案74.2 旋喷隔离桩74.2.1 试桩施工参数84.2.2 旋喷桩施工参数84.2.3 旋喷桩施工工艺94.2.4 旋喷桩施工方法94.3 洞内注浆加固114.3.1 注浆加固范围114.3.2 注浆加固参数124.3.3 注浆加固工艺124.4 暗挖隧道加固134.5 严控盾构施工参数144.6 监控量测144.6.1 监控量测目的及项目144.6.2 监测点埋设、测试与要求154.6.3 监测周期和注意事项15五、安全与环境保证措施165.1 安全保证措施165.2 现场临时用电安全措施175.2.1 现场临时用电安全措施175.2.2 现场用电安

37、全操作规程185.3 环境保护保证措施19六、质量保证措施196.1 质量方针196.2 质量目标196.3 质量管理体系196.3.1 建立项目质量管理体系196.3.2 质量职责分配196.4 盾构机始发质量保证措施206.5 初期小净距掘进质量保证措施2121一、编制范围和依据1.1 编制范围编制范围为北青盾构区间小净距隧道施工。1.2 编制依据1、西安市地铁三号线一期工程鱼化寨至保税区段(不含试验段)土建施工项目投标文件以及施工合同。2、西安市地铁三号线一期工程鱼化寨至保税区段(不含试验段)土建施工项目TJSG-9标施工用图。3、西安市地下铁道有限责任公司技术处关于北池头车站东端始发加

38、固及北青小净距隧道加固方案讨论会会议纪要。4、西安市地铁三号线(鱼化寨保税区)详细勘察阶段 北池头青龙寺区间岩土工程勘察报告。5、现场踏勘的有关资料。6、国家、陕西省现行的有关地下工程设计、施工规范和规程等。7、国家及地方政府颁布的有关法律、法规。8、适用于本工程的标准、规范有:地下铁道工程施工及验收规范(GB50299-1999)工程测量规范(GBJ50026-93)混凝土质量控制标准(GB50164-92)混凝土强度检验评定标准(GBJ107-87)建筑桩基技术规范(JGJ94-94)建筑工程质量检验评定标准(GB50210-2011)建筑施工安全检查标准(JBJ59-2001)施工现场临

39、时用电安全技术规程(JGJ46-2005)建设工程施工现场供用电安全规范(GB50194-93)9、我单位现有的施工技术水平、施工管理水平、机械设备配备能力及劳动力人员能力。10、我单位多年类似工程的施工经验。二、工程概况2.1 工程简介西安地铁三号线TJSG-9标主要施工项目为青龙寺站、延兴门站、北池头站青龙寺站区间、青龙寺站延兴门站区间,共计两站两区间工程。青延区间盾构隧道分为两段:青龙寺站地裂缝暗挖段,其中左线长606.886m、右线长632.807m;地裂缝暗挖段延兴门站,其中左线长917.349m、右线长915.660m。盾构机到达地裂缝暗挖段接收后,空推通过地裂缝段,洞内进行二次始

40、发,到达青龙寺站东端头解体吊出。北青区间左线盾构隧道全长1230.055m、右线盾构隧道全长1494.399m,左线从盾构吊出井始发,右线从北池头站东端头始发,掘进至青龙寺站西边北青区间风井解体吊出。北青区间左线北池头站盾构吊出井,采用矿山法施工;右线采用盾构法施工。左线暗挖隧道在里程ZDK24+463.502ZDK24+477.302的A断面与里程ZDK24+477.302ZDK24+505.302的B断面与右线盾构隧道距离较近,A断面与盾构区间隧道的净距1.03m,B断面与盾构区间隧道的净距为2.05m。2.2 工程地质、水文概况2.2.1 地形、地貌本区域地形总体平坦,地面高程在426.

41、84427.02m之间。根据西安城市工程地质图集,区间地貌为黄土洼。2.2.2 场地地层岩性特征根据岩土的时代成因、地层岩性及工程特性,对岩土进行了工程地质分层,各层土的岩性特征及埋藏条件分述如下:1、第四系全新统1-1层杂填土(Q4 ml):主要由沥青路面、灰渣、石块、灰土、碎石垫层及砖瓦碎块组成,黏性土充填,成分杂乱,结构松散。层厚0.400.50m,层底深度0.400.50m,层底高程426.44426.52m。1-2层素填土(Q4 ml):以黄褐色为主,主要由粘性土组成,以可塑为主,含少量砖瓦片,土质不均,地表处多为道路路面(沥青)及灰土、碎石垫层。层厚1.001.70m,层底深度1.

42、502.10m,层底高程424.74425.52m。2、第四系上更新统3-1-1层新黄土(水上)(Q3eol) :褐黄色,大孔、虫孔发育,见少量白色钙质条纹及蜗牛壳碎片。液性指数IL =0.37,可塑状态。层厚5.507.10m,层底深度约8.60m,层底高程418.24418.42m。3-1-2层新黄土(水上)(Q3eol) :褐黄色,大孔、虫孔发育,见少量白色钙质条纹及蜗牛壳碎片。液性指数IL =0.37,可塑状态。层厚1.601.70m,层底深度10.2010.30m,层底高程416.64416.72m。3-2层古土壤(Q3el):红褐色,具针状孔隙,含多量白色钙质条纹及结核,团粒结构,

43、局部底部结核富集。液性指数IL =0.48,可塑状态。层厚3.504.00m,层底深度13.8014.2m,层底高程412.64413.22m。3、第四系中更新统4-1-2-1层老黄土(水下)(Q2eol):褐黄色,具针状孔隙,含少量钙质结核,见蜗牛壳碎片,液性指数IL =0.71,可塑状态。层厚9.9010.20m,层底深度24.0024.10m,层底高程402.74403.02m。4-2层古土壤(Q2el):红褐色,具针状孔隙,含多量白色钙质条纹及结核,团粒结构,底部含结核含量较高。液性指数IL =0.48,可塑状态。层厚3.904.60m,层底深度28.0028.60m,层底高程398.

44、42398.84m。2.2.3 水文地质特征勘察期间(2010.5.72010.7.4,2010.9.282010.12.8),场地地下水位埋深约12m,地下水位高程介于414.5414.7m之间。属赋存于第四系松散层中的孔隙潜水类型,主要含水层为3-2古土壤、4-1-2-1老黄土(水下)、4-2古土壤。以上含水层组中无明显隔水层,也无明显具承压性的含水层。三、施工准备及组织机构3.1 施工人员准备主要管理人员:项目经理1名,项目总工1名,工区副经理1名,工区土建负责人1名,工区机电负责人1名,技术人员6名,施工队长2名,班长4名,材料员2名,安全员4名,质检人员2名。主要作业人员:盾构机主司

45、机2名,盾构机副司机2名,管片拼装手2名,电瓶车司机4名,电工4名,电气焊工4名,机械维修保养工12名,线路维护工4名,地下隧道配合工20名,龙门吊司机4名,挖掘机司机4名,盾构砂浆搅拌站8名,地面配合工24名。3.2 施工设备准备1、出土用2台45t龙门吊,1台布置在北池头东端,1台布置在吊出井,等待场地具备条件即进场安装。2、出土用45t电瓶车4列、渣车16节、浆车4节、管片车8节,存放于我单位盾构机整修基地,等待进场。3、砂浆拌和站,搅拌罐,存放于我单位盾构机整修基地,等待进场。4、土压平衡盾构机2台,1台CTE6250已进场安装完毕,1台SR001等待进场。3.3 水、电接口盾构施工用

46、水采用北池头车站东端降水井水源。盾构施工用电采用业主提供的10KV高压,由变压器房引至盾构机上接入使用。3.4 施工管理组织机构图3.4-1 施工管理组织机构图四、施工方案4.1 总体施工方案北青区间右线隧道采用盾构机从北池头车站东端始发向东掘进,区间左线隧道从北池头车站到盾构吊出井采用矿山法施工。左线暗挖隧道在里程ZDK24+463.502ZDK24+477.302的A断面与里程ZDK24+477.302ZDK24+505.302的B断面与右线盾构隧道距离较近,A断面与盾构区间隧道的净距1.03m,B断面与盾构区间隧道的净距为2.05m。为保证小净距隧道施工安全采取以下处理措施:1、左线B断

47、面与盾构区间隧道的净距为2.05m,在B断面与右线盾构隧道之间打设旋喷桩加固土体,加固指标qu28不小于0.8MPa,渗透系数不大于110-8cm/s且在旋喷桩加固前先调查有无管线影响,有影响的管线应提前迁改。2、左线A断面与盾构区间隧道的净距为1.03m,因地面管线及道路情况等现场条件限制,无法进行地面旋喷桩加固,所以在A断面与右线盾构隧道之间只能进行暗挖隧道洞内注浆加固。B断面与右线盾构隧道之间旋喷桩加固之后再进行暗挖隧道洞内注浆加固。3、因左线暗挖与右线盾构间距较小,必须合理安排施工顺序,要求在盾构始发前先进行素混凝土桩加固车站端头土体,待基坑主体结构完成后施工左线暗挖隧道,在暗挖隧道的

48、二衬施工完成后,右线盾构才能通过,A断面靠近右线盾构隧道一侧的锁脚锚管不能影响右线盾构施工,特别是A断面直墙上锁脚锚杆斜向下的水平倾角不小于60,其余断面每侧拱脚及A断面其余部位连接处均设两根锁脚锚管,水平夹角为2030,锁脚锚管采用423.5mm小导管,加工参数同超前支护,单根长度3.0m,每处2根,水平倾角2030;注浆压力0.20.5MPa,锚管与钢格栅连接牢固。4、在右线盾构隧道施工前,左线暗挖隧道内采用临时型钢钢架支护加固,保证暗挖隧道的安全。 5、为了减少右线盾构推进时对左线已完成暗挖隧道影响,右线盾构在通过此段暗挖隧道时必须严格控制盾构施工参数,加强注浆,确保暗挖隧道安全。6、盾构通过此段地层时,应加强左线暗挖隧道监测,以及盾构施工监测,做好信息化施工,做好应急预案。4.2 旋喷隔离桩4.2.1 试桩施工参数项次技术参数试桩1试桩2试桩3压缩空气

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