室外給排水管網(wǎng)施工組織設(shè)計(jì)

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 .施工組織設(shè)計(jì)編制單位: xxx目錄第一章 編制依據(jù)1第二章 工程概況2第三章 工程目標(biāo)的確定3第四章 施工準(zhǔn)備5第五章 主要施工方法及技術(shù)措施

24、、8第七章 安全保障措施26第八章 文明施工保證措施33第九章 工期保證措施364.1 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 docu

25、mentation. 4.3 proxy application 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 ther

26、e shall be no loose pages. 4.5 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 200

27、21980) rules of the Nineth, tender 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 rang

28、e must not exceed 20%, otherwise 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 deter

29、mines after the end, controlled 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 t

30、he interim measures for the management 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 2

31、0021980) of tendering agents service 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 sepa

32、rate computation of tendering agents 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

33、documents and solicitation documents 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.

34、Application of various supporting 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 a

35、cknowledged the need to provide, or you can provide. Proxy application shall be bound, and page-by-page coded in the order. 5th chapter application format notes: bidding agent .第一章 編制依據(jù)1.1 招標(biāo)文件；1.2工程施工設(shè)計(jì)圖紙；1.3有關(guān)施工規(guī)范及驗(yàn)收標(biāo)準(zhǔn)：1）給水排水管道工程施工及驗(yàn)收規(guī)范GB50268-972）建筑給水排水及采暖工程施工質(zhì)量驗(yàn)收規(guī)范GB50242-20023)工業(yè)金屬管道工程施工及驗(yàn)收規(guī)范GB

36、50235-974）工業(yè)設(shè)備及管道絕熱工程施工及驗(yàn)收規(guī)范GBJ126-895）建筑工程施工質(zhì)量驗(yàn)收統(tǒng)一標(biāo)準(zhǔn)GB50300-20016）工程測(cè)量規(guī)范GB50026-937）建筑機(jī)械使用安全技術(shù)規(guī)范JGJ33-868)建筑施工安全檢查標(biāo)準(zhǔn)JGJ 59-999)砌體工程施工質(zhì)量驗(yàn)收規(guī)范GB50203-200210) ISO14001環(huán)境管理體系 11)ISO18001職業(yè)安全健康管理體系12)現(xiàn)場(chǎng)設(shè)備、工業(yè)管道焊接工程施工及驗(yàn)收規(guī)范5CJJ28-2004第二章 工程概況本工程為*市明珠二期工程室外給排水工程，項(xiàng)目位于*市西山路西側(cè)，該地區(qū)凍土深度為2.8米，地質(zhì)條件為粉土、粉細(xì)砂、中砂。1. 給水管

37、道：1.1. 給水管道接自市政環(huán)狀給水管網(wǎng)，采用高密度聚乙烯塑料管（HDPE），壓力為1.0MPa。1.2. 給水管道采用熱熔接口，砂礫基礎(chǔ)，埋深為設(shè)計(jì)地面下3.0米。1.3. 閥門(mén)井采用地面操作立式閥門(mén)井，所用閥門(mén)均采用碟閥，壓力為1.6MPa。2 排水管道：1.1. 排水管道采用硬聚氯乙烯（PVC-U）和聚乙烯（HDPE）雙壁波紋塑料管兩種，分別用于排水出戶和排水分支管路及主管路。1.2. 排水管道聚乙烯HDPE排水管要求鋼環(huán)大于等于8kn/。1.3. 排水管硬聚氯乙烯（PVC-U）管采用膠接接口，聚乙烯（HDPE）排水管采用承插橡膠圈接口。1.4. 化糞池選用的是玻璃鋼成品，按最高日用水

38、定額300L/d.人，每個(gè)化糞池按755人計(jì)，90天清淘一次，選用化糞池有效容積25m3。1.5. 排水管道埋深不小于2米，坡度與道路坡度一至。3 消防管道1.1. 消防管道與生活給水管道共用，其水源接自市政環(huán)狀給水管網(wǎng)。1.2. 消防管道用水量為15L/s,該設(shè)計(jì)在消火栓保護(hù)半徑150米范圍內(nèi)設(shè)二個(gè)消火栓，消火栓有兩個(gè)出水口，分別為DN100和DN65，每個(gè)消火栓前設(shè)有防污染倒流防止器。第三章 工程目標(biāo)的確定本施工組織設(shè)計(jì)的編制以我公司現(xiàn)有的施工技術(shù)力量為基點(diǎn)，針對(duì)本工程的特點(diǎn)，并結(jié)合我公司類(lèi)似工程的施工經(jīng)驗(yàn)，本著實(shí)事求是的科學(xué)態(tài)度和忠實(shí)服務(wù)業(yè)主的宗旨進(jìn)行的。如能中標(biāo)，我公司將于中標(biāo)后的7天

39、之內(nèi)，在本投標(biāo)書(shū)的基礎(chǔ)上，按照施工圖補(bǔ)充、完善各分項(xiàng)工程施工中的細(xì)節(jié)問(wèn)題，形成實(shí)施性的施工組織設(shè)計(jì)，確保業(yè)主滿意。一、 總體設(shè)想1.1. 本公司將采用科學(xué)的技術(shù)管理和施工方法，作出優(yōu)質(zhì)的工程，同時(shí)也更高樹(shù)立本公司的形象。1.2. 通過(guò)本工程的施工，要達(dá)到兩個(gè)目的，這就是：通過(guò)施工實(shí)踐，鍛煉、培養(yǎng)出一支高水平的管理隊(duì)伍和施工隊(duì)伍；總結(jié)提高施工經(jīng)驗(yàn)，為今后建筑施工樹(shù)立樣板。1.3. 為達(dá)到上述兩個(gè)目的，我公司拿出最好的管理人員、技術(shù)和施工隊(duì)伍，緊密配合，統(tǒng)一計(jì)劃協(xié)調(diào)、管理，統(tǒng)一組織指揮，在項(xiàng)目部的領(lǐng)導(dǎo)下，協(xié)作配合，共同完成這一任務(wù)。1.4. 由于道路分段、交叉口眾多，場(chǎng)地條件較差，因此在工程施工中

40、必須嚴(yán)密策劃，工序之間銜接、各工種之間的交叉作業(yè)必須經(jīng)周密的布置，以保證工程能按時(shí)完工。二、 管理目標(biāo)設(shè)想2.1. 質(zhì)量目標(biāo)：分項(xiàng)工程一次驗(yàn)收合格率100%，杜絕質(zhì)量事故的發(fā)生。2.2. 安全生產(chǎn)目標(biāo)：樹(shù)立“安全生產(chǎn)、預(yù)防為主”的觀念，在施工生產(chǎn)中全員、全天候、全過(guò)程實(shí)現(xiàn)安全設(shè)計(jì)和措施，控制勞動(dòng)者、勞動(dòng)手段、勞動(dòng)對(duì)象和勞動(dòng)環(huán)境，使人的行為安全，物的狀態(tài)安全，斷絕環(huán)境危險(xiǎn)源，實(shí)現(xiàn)安全生產(chǎn)目標(biāo)。 加強(qiáng)安全管理，不發(fā)生安全事故，消除一切事故隱患。2.3. 工期目標(biāo)：計(jì)劃安排60天完成。中標(biāo)后，我公司通過(guò)加大投入、加強(qiáng)管理，派精干的隊(duì)伍、精良的設(shè)備進(jìn)場(chǎng)，確保按照業(yè)主要求的時(shí)間高標(biāo)準(zhǔn)完成施工任務(wù)。 2.

41、4. 環(huán)境保護(hù)目標(biāo)：認(rèn)真執(zhí)行“當(dāng)?shù)丨h(huán)保的有關(guān)條例”保護(hù)現(xiàn)場(chǎng)環(huán)境的優(yōu)美、衛(wèi)生、清潔干凈2.5. 文明施工目標(biāo)：嚴(yán)格按環(huán)保法、水保法和建設(shè)工程施工現(xiàn)場(chǎng)管理辦法等有關(guān)規(guī)定施工，注意揚(yáng)塵、汽車(chē)尾氣、噪音、污水、碴土等環(huán)境綜合治理。采取責(zé)任承擔(dān)法科學(xué)組織管理，使場(chǎng)容場(chǎng)貌、料具堆放、消防保衛(wèi)、環(huán)境保護(hù)及職工生活等均符合規(guī)定要求，爭(zhēng)創(chuàng)市級(jí)文明工地。第四章 施工準(zhǔn)備一、 施工管理1 為了對(duì)本合同段項(xiàng)目進(jìn)行卓有成效的施工組織管理，我公司擬成立精干、高效、運(yùn)轉(zhuǎn)自如的項(xiàng)目經(jīng)理部。在項(xiàng)目經(jīng)理部除項(xiàng)目經(jīng)理、項(xiàng)目技術(shù)負(fù)責(zé)人外，職能部門(mén)有：工程技術(shù)部人員2人、質(zhì)檢部人員2人、試驗(yàn)室人員2人，財(cái)務(wù)部人員1人、設(shè)備部物資部人員

42、1人、辦公室人員1人以及一支具有豐富的施工經(jīng)驗(yàn)的施工隊(duì)伍。2 各部門(mén)之間分工明確，其負(fù)責(zé)人對(duì)其部門(mén)所承擔(dān)的職能有控制權(quán)，并有權(quán)與現(xiàn)場(chǎng)人員直接接觸，減少項(xiàng)目經(jīng)理的工作量，使項(xiàng)目經(jīng)理能避免過(guò)多的日常工作，并為其提供一個(gè)訓(xùn)練有素的技術(shù)組織。技術(shù)負(fù)責(zé)人分管不同的部門(mén)的負(fù)責(zé)人，他們對(duì)項(xiàng)目經(jīng)理負(fù)責(zé)，使信息能得到及時(shí)處理和傳遞，從而保證決策一致、及時(shí)和準(zhǔn)確。3 本著加快工程進(jìn)度，保證順利實(shí)施，充分利用能夠施工的工作面，我們采取二大措施：第一，整體工程分階段，明確分期目標(biāo)；第二，在平面上分區(qū)施工。施工程序組織原則為先清理后挖填，先地下后地上，先深后淺，先主體后附屬，實(shí)行平面分段，立體交叉，多專(zhuān)業(yè)平行同步流水的

43、施工方法。二、 施工部署1 布署依據(jù)和原則1.1. 本工程的施工特點(diǎn)1.2. 以往施工經(jīng)驗(yàn)、現(xiàn)場(chǎng)了解的情況1.3. 有關(guān)工程施工技術(shù)規(guī)范1.4. 在滿足施工條件下,盡可能減少施工占道。1.5. 有利于施工和現(xiàn)場(chǎng)管理，做到經(jīng)濟(jì)、實(shí)用、合理。1.6. 與附近建筑物結(jié)合考慮，盡量不影響環(huán)境和地方交通。2 施工現(xiàn)場(chǎng)總平面布署2.1. 在建設(shè)方劃定的圍蔽范圍內(nèi)進(jìn)行布置，生活區(qū)利用建設(shè)方劃定位置建設(shè)在工地旁，生活區(qū)單獨(dú)布置。2.2. 為保證文明施工和管理，現(xiàn)場(chǎng)進(jìn)行封閉管理。2.3. 在保證施工順利進(jìn)行的前提下，現(xiàn)場(chǎng)布置盡量緊湊，合理利用施工用地，盡量減少或避免材料二次水平搬運(yùn)，降低損耗和費(fèi)用。2.4. 合

44、理減少臨時(shí)設(shè)施的數(shù)量，減低臨時(shí)設(shè)施費(fèi)用，減少拆遷量。2.5. 符合環(huán)保、安全和防火要求。3.1. 施工臨時(shí)用水、用電部署3.1. 臨時(shí)用水：利用施工現(xiàn)場(chǎng)已經(jīng)完成的臨時(shí)供水管網(wǎng)。3.2. 臨時(shí)用電：臨時(shí)用電利用甲方已經(jīng)架設(shè)的用電線路，施工中配置臨時(shí)配電箱。 所有機(jī)械設(shè)備的用電使用一機(jī)一閘，并經(jīng)過(guò)可靠接地。4 臨時(shí)施工道路布署:借用小區(qū)現(xiàn)有道路作為施工通道。5 管道堆放場(chǎng)和臨時(shí)堆土場(chǎng)布署:管道采用分批按安裝計(jì)劃進(jìn)行安裝,臨時(shí)堆放沿管線兩側(cè)布置堆放。土料臨時(shí)堆放場(chǎng)：道路工程做到挖填結(jié)合，臨時(shí)堆放在附近空地上，溝槽開(kāi)挖沿溝槽兩邊堆放，管道安裝好后馬上回填。6 施工人力資源部署 根據(jù)工程需要，成立一個(gè)專(zhuān)

45、門(mén)的項(xiàng)目部，由項(xiàng)目經(jīng)理牽頭組成一支強(qiáng)有力的項(xiàng)目部，在正式開(kāi)工前做好如下工作：6.1. 勞動(dòng)組織準(zhǔn)備 （1）建立一個(gè)具有豐富施工經(jīng)驗(yàn)、開(kāi)拓精神強(qiáng)、工作效率高的施工組織機(jī)構(gòu)，以更好更快的完成本工程。 （2）根據(jù)施工需要，必須集結(jié)精干的施工力量，合理進(jìn)行勞動(dòng)組織，相應(yīng)的專(zhuān)業(yè)隊(duì)和精干的施工隊(duì)施工。6.2. 技術(shù)準(zhǔn)備 組成工程技術(shù)室詳細(xì)閱讀圖紙，請(qǐng)有關(guān)單位派人員現(xiàn)場(chǎng)監(jiān)護(hù)指導(dǎo)施工。并及時(shí)與設(shè)計(jì)單位解決發(fā)現(xiàn)的問(wèn)題，認(rèn)真做好同甲方設(shè)計(jì)單位的交接工作，認(rèn)真做好各道工序的技術(shù)交底工作，負(fù)責(zé)將交底做明了的解釋?zhuān)源_保施工班組能按設(shè)計(jì)施工。6.3. 總體安排在不影響建設(shè)方正常生產(chǎn)和生活的前提下，整個(gè)外網(wǎng)工程將分區(qū)、分

46、段進(jìn)行，每完成一段后及時(shí)進(jìn)行打壓試驗(yàn)、合格后及時(shí)進(jìn)行管道沖洗，并立即按規(guī)定對(duì)溝槽進(jìn)行回填，恢復(fù)路面、便道，平整土地。第五章 主要施工方法及技術(shù)措施、一、 施工工藝流程 測(cè)量放線 設(shè)置圍欄、安全警示標(biāo)志等 開(kāi)挖管溝驗(yàn)收溝槽驗(yàn)收管材、管件符合性驗(yàn)收溝槽底和管中心線、水準(zhǔn)點(diǎn) 管道安裝 穩(wěn)管夯填土 驗(yàn)核管道安裝各數(shù)據(jù)準(zhǔn)確性 管頂500以上回填 井室砌筑 管段打壓試驗(yàn) 管溝全部回填 管道沖洗、消毒。二、 測(cè)量放線開(kāi)工前由建設(shè)方組織有關(guān)部門(mén)交樁、交線，提供控制點(diǎn)。根據(jù)建設(shè)方提供的樁點(diǎn)位置及測(cè)量控制點(diǎn)，每100米引測(cè)一臨時(shí)水準(zhǔn)點(diǎn)，水準(zhǔn)點(diǎn)需經(jīng)閉合后方可使用。建設(shè)方提供的樁點(diǎn)，施工現(xiàn)場(chǎng)測(cè)量人員應(yīng)作好栓樁、護(hù)樁工

47、作；臨時(shí)水準(zhǔn)點(diǎn)應(yīng)設(shè)在附近建筑物上或牢固的樁上。 根據(jù)建設(shè)方提供的管道中心樁進(jìn)行測(cè)量放線，管道中心線及占地邊線應(yīng)同時(shí)放出，管道中心線應(yīng)打百米樁，并注明相應(yīng)的樁號(hào)、高程及角度等，所有樁點(diǎn)均應(yīng)栓樁，并做好紀(jì)錄，以便在丟失、破壞時(shí)順利準(zhǔn)確補(bǔ)測(cè)恢復(fù)。測(cè)量人員必須履行復(fù)合制度，同時(shí)做好原始紀(jì)錄，測(cè)量完成后及時(shí)請(qǐng)監(jiān)理工程師驗(yàn)樁、驗(yàn)線，合格并簽字后方可進(jìn)行下一步工序。 在線路與地下障礙物交叉處做出標(biāo)記，標(biāo)記里程、障礙埋深、尺寸等。管道放線以施工平面圖中標(biāo)注的尺寸為依據(jù)，施工中嚴(yán)格控制管道中心線、各部位高程。施工測(cè)量的允許偏差見(jiàn)下表規(guī)定：施工測(cè)量允許偏差 表3項(xiàng)目允許偏差水準(zhǔn)測(cè)量高程閉合差20L mm導(dǎo)線測(cè)量相

48、對(duì)閉合差1/3000直線丈量測(cè)距兩次校差1/5000注：L為水準(zhǔn)測(cè)量閉合路線的長(zhǎng)度（km） 三、 管道溝槽施工 根據(jù)技術(shù)規(guī)范對(duì)現(xiàn)場(chǎng)的施工準(zhǔn)備、拆除、清理、管溝開(kāi)挖與回填等方面的要求：3.1. 土方施工開(kāi)工：在現(xiàn)場(chǎng)開(kāi)始任何土方施工前，我們提前2天將開(kāi)工日期通知項(xiàng)目監(jiān)理，并記錄現(xiàn)場(chǎng)該地點(diǎn)的原地面的高程和地形，滿足項(xiàng)目監(jiān)理的要求。溝槽開(kāi)挖時(shí)，主要靠機(jī)械開(kāi)挖，局部狹窄地段可采用小型挖土機(jī)械開(kāi)挖，部分路段采用人工開(kāi)挖。3.2. 原地面高程測(cè)量：向項(xiàng)目監(jiān)理提交一份現(xiàn)場(chǎng)原地面高程的測(cè)量圖紙副本，該圖紙經(jīng)項(xiàng)目監(jiān)理的同意并簽字，并將用于工程測(cè)量?，F(xiàn)場(chǎng)任何部分的土方工程都須收到項(xiàng)目監(jiān)理發(fā)出的書(shū)面批準(zhǔn)才能開(kāi)始。3.

49、3. 溝槽開(kāi)挖尺寸與標(biāo)高管線溝槽開(kāi)挖前應(yīng)按給水排水管道工程施工及驗(yàn)收規(guī)范（GB5026897）中的有關(guān)施工測(cè)量的規(guī)定進(jìn)行管線測(cè)量放線，設(shè)置控制樁點(diǎn)及水準(zhǔn)樁點(diǎn)，施工放線經(jīng)項(xiàng)目監(jiān)理驗(yàn)證，樁點(diǎn)位置應(yīng)便于管線各區(qū)段施工時(shí)對(duì)管線軸線及標(biāo)高的引測(cè)和控制。在每段工程開(kāi)始之前設(shè)立標(biāo)樁，以便在施工前和以后控制管道的軸線和標(biāo)高。整個(gè)工程的溝槽標(biāo)高應(yīng)按圖紙實(shí)施，溝槽開(kāi)挖尺寸應(yīng)根據(jù)地質(zhì)情況以及設(shè)計(jì)圖紙為準(zhǔn)，或按項(xiàng)目監(jiān)理審定的標(biāo)高和尺寸施工。溝槽開(kāi)挖尺寸：溝槽開(kāi)挖的尺寸應(yīng)保證所敷設(shè)的管道與側(cè)面、底部的凈空能滿足管道下墊層以及管道周?chē)靥钏璧淖钚〕叽纭１竟こ谈鞴芏螠喜坶_(kāi)挖底寬按下式計(jì)算：BD12（b1+b2）式中B管道

50、溝槽底部開(kāi)挖寬度（mm）D1管道結(jié)構(gòu)的外緣寬度（mm）b1管道一側(cè)的工作面寬度（mm）b2管道一側(cè)的支撐厚度一般取150200mm本工程D1500，b1取300；溝槽底部需設(shè)排水溝時(shí)，工作面寬度（b1）應(yīng)適當(dāng)增加。3.4. 溝槽邊坡按國(guó)家現(xiàn)行規(guī)范GB5026897執(zhí)行，根據(jù)地質(zhì)情況，開(kāi)工前應(yīng)提交溝槽斷面尺寸及邊坡設(shè)計(jì)，以便項(xiàng)目監(jiān)理審定，溝槽標(biāo)高與地面標(biāo)高有關(guān)，地面標(biāo)高系指挖方場(chǎng)地（道路）自然地面標(biāo)高。3.5. 溝槽土的堆放溝槽土及材料應(yīng)堆放在距離溝邊0.8米以外的指定位置。土堆高度不能超過(guò)1.5米。3.6. 溝槽的挖掘程度在管線溝槽開(kāi)挖前，得到項(xiàng)目監(jiān)理對(duì)溝槽挖掘的斷面尺寸及挖掘土堆放的書(shū)面批準(zhǔn)

51、后再進(jìn)行溝槽的開(kāi)挖，一段溝槽完成后再開(kāi)始新一段的溝槽的施工。溝槽不允許挖至溝底設(shè)計(jì)標(biāo)高以下，如個(gè)別地方超挖時(shí)，應(yīng)用中、粗砂分層夯實(shí)到設(shè)計(jì)要求，并達(dá)到要求的密實(shí)度。管道應(yīng)直接落在原土上，但當(dāng)挖至設(shè)計(jì)標(biāo)高如遇有膨脹土?xí)r，在管道槽底要求加墊粗砂墊層300mm厚，以減少脹縮量，管道回填土要求管頂以上至道路結(jié)構(gòu)層下，回填石粉夯實(shí)。機(jī)械挖土開(kāi)挖溝槽底應(yīng)留至少300mm厚的土層暫不挖，待施工管基時(shí)用人工清理到設(shè)計(jì)標(biāo)高。挖方放置場(chǎng)地范圍內(nèi)，不能損壞或阻礙任何私人的或公共的通道及永久性工程設(shè)施，嚴(yán)格按有關(guān)規(guī)定及建設(shè)方要求執(zhí)行，在溝槽開(kāi)挖期間，必須嚴(yán)格保護(hù)溝槽兩側(cè)永久性工程設(shè)施的穩(wěn)固，如發(fā)現(xiàn)問(wèn)題，應(yīng)立即停止施工并

52、及時(shí)通知監(jiān)理，在溝槽開(kāi)挖前應(yīng)詳細(xì)調(diào)查現(xiàn)場(chǎng)的各種地下設(shè)施，凡建設(shè)方已提前指出或未指出的與管道交叉的各種地下管線，施工開(kāi)挖時(shí)必須嚴(yán)格保護(hù)，并按建設(shè)方或監(jiān)理的要求開(kāi)挖。3.7. 含水層的挖掘含水層的挖掘要求有適當(dāng)?shù)姆罎B圍堰措施，應(yīng)向項(xiàng)目監(jiān)理提交所采取措施的方案及圖紙。在其它情況下，應(yīng)采取適當(dāng)措施，如排水設(shè)施、溝槽支護(hù)等，以保證施工順利、安全，并使項(xiàng)目監(jiān)理滿意。3.8. 不適合作基槽的土質(zhì)如果溝槽的土質(zhì)不適合作管基，應(yīng)及時(shí)以書(shū)面的形式向項(xiàng)目監(jiān)理反映情況，如果確定為不適合作基槽土質(zhì)，應(yīng)把土移走，回填夯實(shí)中粗砂土。挖掘程度按設(shè)計(jì)圖紙或監(jiān)理的要求執(zhí)行。不適合作基槽土質(zhì)包括植物根、有機(jī)污染物、巖石、垃圾、井等

53、異常埋物及有害物質(zhì)。3.9. 開(kāi)槽時(shí)的滑坡和塌土在土方施工中一定要防止土方兩側(cè)的塌陷，在挖土方工程中萬(wàn)一出現(xiàn)塌方時(shí)應(yīng)填滿孔洞，加寬溝槽，以適應(yīng)永久性工程的要求；如果出現(xiàn)孔洞，應(yīng)在孔洞及其周?chē)畛銫10混凝土使之堅(jiān)固；如遇有害物質(zhì)，立即以書(shū)面形式通知監(jiān)理，并采取適當(dāng)?shù)拇胧┍ＷC工作人員、財(cái)產(chǎn)及第三方的安全。3.10. 溝槽的支撐土方挖掘時(shí)，應(yīng)征得監(jiān)理同意，在溝槽內(nèi)安設(shè)支撐，以確保周?chē)孛婕芭R時(shí)構(gòu)筑物的安全。如有必要，應(yīng)按監(jiān)理要求適當(dāng)增加溝槽的寬度，管道被安置且管區(qū)被回填前，不得拆除擋板，當(dāng)回填時(shí)，支撐和擋板應(yīng)被拆掉，并應(yīng)采用不損壞管道的方法。3.11. 多余土方外運(yùn)施工中挖掘出的土料、石渣按業(yè)主要

54、求送至指定地點(diǎn)堆放。在臨時(shí)儲(chǔ)存和運(yùn)輸過(guò)程中，要有切實(shí)可行的措施減輕對(duì)周?chē)h(huán)境的影響。3.12. 溝槽內(nèi)地下水的排除遇有地下水情況的溝槽施工，必須嚴(yán)格執(zhí)行給水排水管道工程施工及驗(yàn)收規(guī)范中關(guān)于施工排水的有關(guān)規(guī)定，編制詳細(xì)的降（排）水方案，除在特殊情況下經(jīng)監(jiān)理同意，否則溝槽內(nèi)不允許積水。降、排水措施可采用明溝集水井排水或人工降低地下水位，但無(wú)論采取何種降排水措施，均應(yīng)保證地下水位始終在管基基面以下不小于0.5米，并不得使用正在施工的管道排水。明溝排水的排水坡度應(yīng)不至沖刷溝底土壤。遇有流砂的土層時(shí)宜采用人工降地下水位的方法。全部降、排水設(shè)施應(yīng)保持施工過(guò)程的正常運(yùn)行，直到回填土超過(guò)地下水位高度且不致使空

55、管浮起的高度時(shí)，才可停止和拆除降、排水設(shè)施。要確保地下水位下降后不影響任何相鄰的施工或現(xiàn)有設(shè)施、構(gòu)筑物、建筑物的安全。 四、 溝槽回填4.1. 回填和充填土質(zhì)應(yīng)清潔，不能用有機(jī)物或其它一些不適合的土質(zhì)回填和充填。管道及其附屬構(gòu)筑物完成，經(jīng)驗(yàn)收后應(yīng)及時(shí)回填，一旦開(kāi)始回填，要盡快完成，不得延誤，不允許將已完成的管道長(zhǎng)期外露不回填，更不允許將其跨越雨冬期?；靥顣r(shí)不得損壞管道或構(gòu)筑物，晝夜溫差較大的情況下，回填應(yīng)在當(dāng)天氣溫較低的時(shí)候進(jìn)行。4.2. 溝槽回填前應(yīng)符合下列規(guī)定：4.3. 水壓試驗(yàn)前，除接口外，管道兩側(cè)及管頂以上回填高度不應(yīng)小于0.5m；水壓試驗(yàn)合格后，應(yīng)及時(shí)回填其他部分。4.4. 磚、石、

56、木塊等雜物應(yīng)清除干凈。4.5. 回填土的夯實(shí)及管區(qū)回填 隨著回填土的進(jìn)展逐步拆除溝槽支撐，但不得影響施工的安全，管溝的土方回填分兩個(gè)階段：4.5.1第一階段回填深度從管溝底或墊層開(kāi)始達(dá)管頂以上500mm，稱(chēng)為管區(qū)回填。管線接口應(yīng)留出來(lái)?；靥畋仨氂霉軈^(qū)材料回填，分層夯實(shí)每層不超過(guò)200mm。夯實(shí)要求管線兩側(cè)同時(shí)進(jìn)行，嚴(yán)禁單側(cè)回填或用推土機(jī)從一側(cè)向溝內(nèi)推填，以免引起管道軸線位移和接口變形。管頂500mm內(nèi)的回填土與兩側(cè)回填土的要求相同，并不得使用重錘或機(jī)械夯實(shí)。回填至管頂500mm以上部分，經(jīng)監(jiān)理允許，才能使用機(jī)械夯填。對(duì)于管區(qū)回填，回填土的干密度不得低于ASTM的最大密度的90。一段管線鋪設(shè)完成

57、后，要盡快回填，每回填100延米后要進(jìn)行現(xiàn)場(chǎng)夯實(shí)度試驗(yàn)。4.5.2第二階段一段管線管區(qū)回填驗(yàn)收合格之后，密實(shí)度試驗(yàn)留下的孔洞要填滿夯實(shí)，其密實(shí)度要達(dá)到相當(dāng)標(biāo)高規(guī)定干密度的95。管區(qū)以上部分用挖掘出的合適土質(zhì)回填，不能含有凍土或大石塊，分層夯實(shí)，厚度不超過(guò)300mm?；靥钔恋拿軐?shí)度不得低于最大密實(shí)度的95。此項(xiàng)工程一經(jīng)開(kāi)工需盡快完成不得延誤工期。在尚未形成道路的地段，溝槽回填土要稍高于原地面（不少于500mm）。4.5.3管區(qū)材料管區(qū)材料是指管區(qū)允許回填的材料：1）粒狀材料回填：粒狀材料回填是采用干凈的石粉或山砂，進(jìn)行合理的級(jí)配，其最大尺寸為35mm。砂可用小于6.0mm的中粗砂材料回填。2）素土回填：采用原來(lái)的或外運(yùn)的開(kāi)挖材料回填，應(yīng)不含有樹(shù)根、有機(jī)物、垃圾、粒徑大于35mm的石塊、凍土塊和其它有毒物質(zhì)。4.5.4 回填土密實(shí)度的測(cè)試對(duì)于永久性工程，在開(kāi)始夯實(shí)前向項(xiàng)目監(jiān)理提供其擬采用的夯實(shí)方法和夯實(shí)設(shè)備的詳細(xì)情況，以及現(xiàn)場(chǎng)應(yīng)做的試驗(yàn)。測(cè)試和試驗(yàn)點(diǎn)的間距，一般每100m做一個(gè)密實(shí)度試驗(yàn)。五、 給水管道安裝1. 給水管道施工方法使用機(jī)械下管時(shí)，速度應(yīng)均勻，回轉(zhuǎn)平穩(wěn)，下落時(shí)低速輕放，不忽快忽慢和突然制動(dòng)。嚴(yán)禁在被吊管節(jié)上站人。吊裝前