新港污水處理廠廠區管網工程施工方案(13頁).doc
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2022-10-18
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1、XX市新港污水處理廠廠區管網工程施工方案1、管網工程施工主要分三大類:鋼筋混凝土管、焊接鋼管、HDPE管。2、從現場情況分析,由于回填土方約10米深,而鋼筋混凝土主要進水管埋深都在910米,都屬于深基坑施工,因此該部分施工難度最大。3、從施工順序分析,MSBR池等構筑物不完成施工及土方回填,主要的工藝管線又無法施工。施工計劃:管道施工總原則為“先深后淺”,在先施工完成進水埋深9米左右的混凝土管道之后,再施工上部P0焊接鋼管和其他污水工藝管線,最后施工場內污水排水管道和空氣管。具體施工時間安排為:1、12月到1月,主要施工W18W12段的D1500進水混凝土管和W52W50的D1800進水混凝土2、管和污水檢查井。2、1月到2月施工P0進水焊接接鋼管。3、2月開始根據現場情況施工MSBR池體周邊工藝管道。施工方案:1、深基坑部分,主要為混凝土管道安裝及檢查井施工,由于現場無回填土技術參數等資料,且我司不具備深基坑專項設計資質,而施工進度要求快,因此,我司只能根據以往的施工經驗,報送以下技術方案:1.1 進水W18W8 ,W9 W10W16段,埋深為9.39.5米,該段根據與設計溝通,將W8#井往北移15米,W9#井往南移25米(主要為避開檢查井施工周期長導致的道路和辦公樓困難),同時,該段深基坑施工我司計劃分3級放坡,2級臺階,放坡比例1:1.2,具體見附圖一。1.2 W8 W9段,因污3、水管道西側管中距傳達室不到11m,東側管中距綜合樓不到13m,且傳達室、綜合樓樁基工程已施工完畢。為了不影響傳達室、綜合樓與管道相鄰的樁基礎,此段基坑開挖距離較窄其開挖寬度距管中必須控制在10m以內。但高度已達到10.05m,其具體方案為:、因傳達室和綜合樓位置不能堆土,故此段范圍土方開挖必須全部場內轉運;、在中部留出一個1.5m2m的平臺;、將西側放坡系數縮小至1:1;、尚余高差3m采用木樁擋土分三級進行每級擋一米;、開挖及管道安裝由低至高分段施工;、此段范圍兩邊不能停靠吊車,吊車只能停靠兩端,因此必須采用臂長30米的吊車進行吊裝;具體見附圖二。1.3 其他埋深5米管道,采用1:1放坡開挖,4、具體見附圖三。4.3.3 土方開挖(1)根據本工程的施工特點,土方選用斗容1.0m3的反鏟挖土機進行土方開挖,自卸汽車進行運土,運至指定位置堆放,以供回填之用。(3)為防止機械開挖超深,基底土方預留20cm厚土方采用人工清土,清土時必須配備足夠的人員,與機械開挖同步,從而保證基坑內的土方全部用機械挖除出基坑內部,從而減少工人運土的勞動強度。(5)考慮工程所在位置以及工程的地質情況、水位情況,土方開挖按照1:1.2放坡,同時基礎底板邊預留出足夠的工作面供基礎施工。(6)為排除雨天降水以及基坑內的明水,在基坑土方開挖的同時,隨即施工排水明溝,排水溝采用標準磚砌筑,上底寬度為500mm、下底寬度為35、00mm、深度為300mm,集水井長寬深為8008001000mm,排水坡度為2%,集水井內積水采用100潛水泵排除。4.3.4 土方回填4.3.4.1 基坑基槽回填(1)土方回填選用優質的粉質粘土,通過試驗確定最優含水量,現場開挖出的土方符合回填要求的,方可使用。(2)土方回填前,基坑內的雜物清除干凈,積水排除,經監理驗收同意后進行回填。(3)基坑回填時應沿構筑物四周同時進行, 在每層回填土夯實后,必須按規范規定進行環刀取樣4.3.4.2 管槽回填回填前,應首先進行管道滲漏水試驗,合格后再回填土,回填時在距管頂0.3m以內回填土嚴禁信含有土壤硬塊和磚塊、石頭等物。雨、排水管施工時要先復核排出6、口的接納管標高是否與圖紙一致。4.10鋼筋混凝土排水管道:4.10.1溝槽開挖采用挖掘機作業,人工配合。人工用于修整邊坡和清底。溝槽底兩側縱向各挖一條30cm30cm的臨時排水溝,每隔30m設一集水坑。用泥漿泵將坑內積水隨時抽排到路基以外,以保證溝槽內不積水。溝槽挖土考慮安全間距向槽兩側堆放時將留出吊車吊管位置。4.10.2開挖溝槽底寬:底寬為管道加實際工作面寬度。4.10.3填方段溝槽施工,先將土填至管頂以上50cm夯實,碾壓至壓實度達到設計要求后,再進行機械開挖至槽底以上20cm左右停止機械作業,采用人工清基至設計高,防止超挖。4.10.4溝壁保持穩定,必要時采取支撐護壁。4.10.5溝槽7、到位并經驗收后,立即澆筑平基混凝土,防止擾動基底以及雨水、地下水浸泡基底。4.10.6鋼筋混凝土管的鋪設:1)平基混凝土強度達到5Mpa以上,即可直接下管安裝。2)安管前在平基面上彈線以控制安管中心線,安管過程中按邊線控制管子的順直度,管子安裝前后兩端各10-15cm范圍內進行鑿毛。3)管道安裝好后,用干凈石子卡牢防止滾動,并及時澆筑管座混凝土,澆筑管座混凝土兩側平衡進行,防止將管子擠偏。支管、軟接頭(砂墊層)采用二氈三油包管按每邊長20cm。4)管子安裝控制標準為管的底標高偏差在正負10mm之內,中心線偏差不超過10mm,相鄰管內底口錯口不大于3mm,避免錯口現象發生。5)接口為鋼絲水泥砂漿8、抹帶接口,抹帶前將已鑿毛的管口洗刷干凈,并刷水泥漿一遍,在抹帶的兩側安裝弧型邊模,然后分層進行壓抹砂漿和安裝鋼絲網,抹帶砂漿外光密實,鋼絲網平整,抹帶寬度偏差在5mm內。管道完成后,按規范要求進行有代表性段落的閉水實驗,經質監、監理、業主檢查符合要求后再進行回填、分層夯實。6)混凝土施工前做好詳細的工藝設計,模板支撐要有足夠的強度、剛度和穩定性,模板接縫要嚴密,周轉使用時清理干凈,并刷脫模劑。7)混凝土澆搗執行技術交底,混凝土澆搗許可證制度。經質檢員檢查并簽字認可后,再澆搗混凝土。8)所有工程用混凝土均采用商品混凝土組織施工。4.10.7磚砌檢查井施工:1)按排水平面圖對各檢查井進行放線定位,9、其井底標高用水準儀控制砼底板標高,按設計要求用磚砌井壁,注意安裝檢修爬梯。2)井墻砌筑:在基礎底板上鋪砂一層(座漿),可砌筑井墻,按圖紙做井底并用水泥砂漿抹出坡向支管的泛水,可直接砌筑預制井身,邊角整齊,符合圖紙尺寸且磚面對齊吻合方可砌筑,上下錯縫內外搭接,砌磚砂漿要飽滿,常溫砌墻用磚塊必須灑水浸濕。井身墻體砌筑到一定高度隨砌隨采用1:2-1:2.5水泥砂漿抹面(墻內側),要抹兩遍,總厚1.5cm。外墻用1:4水泥砂漿搓縫,要隨砌隨搓使外墻嚴密。3)隨墻身的砌筑還應還槽,可采用基層用混合料,隨還填隨夯實,也可用碎磚等粒料還槽并灌1:4水泥砂漿,還可用C10水泥混凝土回填,做到回填密實以免回填不10、實使路面產生局部沉陷。當砌筑支管頂時,應將管頭與井箅,井框和井箅必須順暢。收水井砌完后,應清除一切雜物,拆除管堵,按標準檢驗。4)各檢查井砌筑中做到砂漿飽滿,灰縫平整,沒有通縫,進壁圓滑,流槽平順,井底干凈、美觀,標高準確。井徑尺寸規范,井壁粉刷圓滑,砼井座座漿安砌,并按照設計路面縱橫掛線,控制井蓋板與路面平順銜接。5)待檢查井砌筑完畢后,向管道內灌水進行閉水試驗。6)基坑回填:按設計基坑橫斷面要求,管頂上50cm以下用砂卵石回填,采用分層回填法,每層約40cm厚用振動棒振動密實,密實度達到設計要求,上面原土回填,每層虛鋪厚度30cm,用蛙式夯機來回夯實,管頂上土層厚超過1m后用三輪壓路機壓實11、。4.12季節性施工的措施:本工程施工要經歷雨、夏季,為加快工程施工進度,保證工程質量和施工安全,項目部將制定詳細的雨、夏季施工措施,并嚴格遵照執行。4.12.1雨季施工的措施:(1)做好場地周圍及基坑內的排水設施,疏通現場排水溝道,準備好排水機具,防止雨水淹泡工程或地基,雨后及時安排人員進行場內積水的排除。(2)對施工現場內臨時道路采用砼進行硬化、場內堆場處鋪墊一層砂卵石,以確保在雨天施工時,場內不會出現爛泥滿地、運輸車輛陷停和污染場外城市道路的現象。(3)由試驗室試配適合不同外界自然條件的砼配合比,施工中對砂石含水率及時準確測定,及時調整砼、砂漿配合比,以適應工程施工需要。(4)及時做好材12、料準備工作,安排好雨具、薄膜、編織布、蓬布,砼澆筑時若遇暴雨,采用編織布、蓬布將施工處加以覆蓋,并按規范要求留設施工縫。(5)施工現場的機電設備要做好防雨、防雷、防漏電措施。四、保證安全措施1、安全目標:按建設部頒發的施工現場綜合考評試行辦法和建筑施工安全檢查標準(JGJ5999)進行管理,組織施工,創建“文明安全工地”,確保安全無事故。2、安全保證體系:2.1堅持“安全第一,預防為主”的方針,成立以項目經理為組長,專職安全員為副組長,各相關職能部門負責人為組員的安全領導小組,制定安全保證體系(見安全生產保證體系框圖),使各個部門都參與安全管理,認真落實安全責任制,堅持誰施工、誰負責的安全原則13、,搞好安全教育,嚴格遵守安全操作規程。2.2堅持向職工進行安全教育培訓、安全技術交底和定期安全檢查制度,及時貫徹關于安全生產管理的規范、規程、標準,每星期組織一次安全生產檢查,發現安全隱患及時整改,并召開安全生產會議,總結上周安全生產工作,并對下周即將施工區域的進行技術交底和布置。2.3認真作好新入場工人及變換工種工人的三級安全教育工作,三級安全教育由技術、安全部門配合組織進行,經考核合格后方可進入生產崗位,特種作業人員必須持證上崗,嚴禁違章操作。2.4班前安全教育:項目部每天由安全員、施工員對各施工班組進行上崗時安全操作規程和班組交叉作業安全技術交底,包括工程施工內容、方案、規范及規程等技術14、交底。3、安全技術措施:3.1施工現場:3.1.1施工人員進入施工現場必須按要求配戴好安全帽,高處作業系好安全帶,嚴禁打赤腳、穿拖鞋和高跟鞋入內,發現違規者予以處罰。3.1.2在現場大門門樓上方安裝安監站推廣使用的電腦安全語言箱,每天上下班時間進行安全語言提示,宣傳安全知識。另在周圍張掛醒目的安全標志、安全宣傳及警示牌,提醒每個生產工人。作業環境科學合理采用不同的色彩,減輕作業人員眼睛和全身的疲勞,降低事故頻率。3.1.3現場材料嚴格按經審定的施工總平面圖布置區域堆放,以免堵塞交通,發生交通事故。3.2機電設備:3.2.1機械和設備動力機座必須穩固,轉動危險部位要設防護裝置。3.2.2電氣設備15、和線路必須保證絕緣,電線不得與金屬物綁在一起。各種電動機必須按規定接零線接地,并設置閘刀開關,臨時停電,停工休息時,必須拉閘加鎖。3.2.3施工機械和電氣不得帶病運轉和超負荷作業,發現不正常情況要停機檢修,不得在運轉中修理。3.2.4電氣、儀表和設備試運轉,要嚴格按照單項安全技術措施進行,運轉時不準擦洗和修理,嚴禁將頭或手伸入行程范圍內。3.3季節施工:3.3.1暴雨前后要檢查工地臨設、機電設備、臨時線路,發現傾斜、變形、下沉、漏雨、漏電等現象,要及時加固,有嚴重危險的,必須立即排除。3.3.2本工程施工季節主要為低溫的冬季,因此要做好冬季的升溫保暖工作,工地宿舍內采取保暖措施,嚴禁在宿舍亂接16、電源,防止生火引起火災。4、安全技術:4.1基坑支護:基坑四周采用鋼架管作好圍護欄桿,并刷上紅白相間的警戒油漆,夜間在四周設置照明燈,防止施工人員跌入坑內引起傷亡事故。4.2腳手架安全技術要求:外架搭設前先制定施工方案和設計計算書,尤其是懸挑外腳手架, 按規定搭設。做好墻體的拉接點,操作層及其下滿鋪架板,腳手架外側采用竹笆(或綠色安全立網)封閉。腳手架搭設完畢,按專門制度驗收掛牌使用,腳手架的日常使用管理由專人負責,定期檢查,腳手架上不得超過載,多余物件隨時清理,各部連接點由安全員按每步架進行一次檢查清理,使用中的腳手架,拆除任何一個部件都必須有審批制度,并按批準手續規定及時恢復原狀,經檢查后17、再使用;腳手架的拆除,按腳手架技術交底規定程序進行,零部件的水平與垂直運輸按專門路線及時整理運出,拆卸時劃出禁區由專人監護。腳手架按建筑周邊長度30m內不少于一個接地保護裝置,接地電阻不大于1。4.3砌筑工程安全技術:同一垂直面內上下交叉作業時,必須設防護隔離層(如掛棚布、竹笆或繩網),防止物體墜落傷人,現場或樓層上的坑、洞要設置護身攔桿或防護攔板,墻身砌體高度超過地面1.2m以上時,要搭設腳手架,在一層以上或高度超過4m時,必須有上下馬道,采用里腳手架必須支搭安全網,采用外腳手架要設護身欄和擋腳板。砌體堆在架上,集中荷載不得超過1.5KN,側碼不得超過三層,同一塊腳手板上的操作人員不得超過218、人。4.4安全用電保護:4.4.1施工現場用電采用三相五線制,用電設備采用“三級配電兩級漏電保護”進行配電,所有閘箱門上鎖,做到“一機、一閘、一漏電”保護。4.4.2每天由安全員檢查漏電保護器是否有效。4.4.3架空線采用絕緣銅線或絕緣鉛線,嚴禁架設在腳手架上,架空線與鄰近線路保持6m距離。4.4.4所有機電設備做好接零、接地保護,采用TN-S系統。4.4.5配電箱采用安監站統一推廣的鐵制配電箱,箱中導線的進線口和出線口設在箱體的下底面。嚴禁在箱體上頂面、側面處進出線路,進出線分路成束加護套并作防水彎,箱內不得放其它雜物,箱蓋有防雨措施,配電箱上鎖,鑰匙由電工負責。4.4.6嚴禁非值班電工私自19、接線,違者重罰。5、安全防護:5.1臨邊防護:臨邊必須搭設防護欄桿或張掛安全網,需通行人流、貨流處要設置工具式安全門或活動防護欄桿;防護欄桿由上下二道扶手及欄桿組成,上扶手離地11.2m,下扶手離地0.40.6m。一般扶手長度超過2m設立柱,欄桿用鋼管搭設,安全網使用時要符合建筑施工安全網的搭設規定。5.2洞口防護:有墜入可能的洞口,按臨邊作業的規定加設工具式安全門防護,洞口設專人管理,經常檢查,防護措施的可靠性和完備性,安全網內積存雜物要定期清理。5.3交叉作業防護:在施工作業中經常在同一垂直面內施工,所以必須做好安全隔離防護,在臨邊、洞口附近不準存放雜物,其臨時轉運必須有人臨護,在垂直輸送20、落物半徑內,人員行走要劃出專門路線,做好隔離棚,無隔離措施不得在同一垂直面內上下、交叉作業。6、消防安全:6.1在工地的臨時設施、食堂和易燃材料庫場內配置足夠的消防器材,場內設置臨時消防栓和泡沫滅火器,現場設立消防警示牌。6.2裝修階段要特別注意防火,每層設置防火裝置,木材、刨花、包裝紙盒等易燃物質每天由專人清理。6.3安全員要經常巡視滅火器的使用情況,嚴禁亂扔亂放,空瓶要及時更換。Opinions and suggestions on the partys mass line educational practiceAccording to the central and provincia21、l, municipal unified deployment, according to municipal Party committee about carrying out the partys mass line educational practice activity in the citys implementation opinions, the spirit of the partys mass line educational practice activities from 20* in January to 99 months, carried out at all 22、levels of departments and directly affiliated institutions and grass-roots party organizations. According to my actual County, the county to carry out the education practice put forward the following implementation opinions.First, the overall requirementsCounty county education practice to the eight23、een Party of eight, the spirit of the the third Plenary Session of the 18th CPC Central Committee as the guidance, conscientiously implement the spirit of general secretary Xi Jinping book series of important speech, earnestly implement the Central Committee really, opinions and advice , party imple24、menting the guiding ideology of opinions to determine the objectives and requirements, step method, in accordance with the look in the mirror, dress up, wash bath, cure treatment, the general requirements of for the people pragmatic honest people as the theme, in carrying forward the spirit of Zhuan25、glang Zhuang, improve their work style, service to the masses of the people, the foundation of consolidating grassroots, promote transformation across efforts, to further implement the central eight regulations and The opposition party and government austerity waste regulations , double section prov26、incial regulations, municipal provisions of the twelve plan and the implementation measures for on improving the work style of close ties with the masses law, highlight style building, carry out the whole wind spirit, resolutely oppose formalism, bureaucracy, hedonism and wasteful extravagance to so27、lve the problems, Party members and cadres of the style and the masses of people strong, the Ministry of Party members and cadres to further improve their thinking and understanding, to further change the style of the wind, the masses to close, honest and pragmatic people honest image to further est28、ablish the foundation to further reinforce the basic level. Style of the building of the new results to promote the construction of a powerful force of the county and the ecological culture of the county and county construction.In educational practice activities of the unit is mainly: the county and29、 below county departments under the organs, enterprises and institutions directly under the township, street, and community, village, non-public economic organizations, social organizations and other grass-roots organizations. Agencies and branches, each single unit, follow the rules on internal ins30、titutions. Educational practice with step by step.To adhere to the county leadership, leadership and leading cadres to focus on outstanding catch to directly contact the service of the masses of law supervision departments and window units, service industry, educational practice, pay attention to gr31、asp the heavy towns, streets and villages, community education activities and the masses of grassroots groups in close contact to strengthen, and the majority of Party members, cadres and the mass line line Marx doctrine view of the masses and the partys education.Always speak seriously as a basic a32、ttitude, adhere to positive education, to carry out criticism and self criticism group, adhere to the pragmatic, more emphasis on leadership, pay more attention to the layers of the demonstration, more focus on the four winds, solve the problem, pay more attention to open the door, the participation33、 of the masses, pay more attention to the classification guidance. Orderly, pay more attention to the cooperation and cohesion driven, more strict requirements on injection, really supervision practice, ensure education practice is not empty is not empty is not partial, not as a mere formality.Two, 34、the key point of the taskThe main task of the countys education practice is to seize against four wind this focus on centralized solve outstanding problems asked County, township leadership and leading cadres of the four winds, the disadvantages of the style, scale behavior to a large scale investig35、ation, overhaul, cleaning greatly. At the same time, respond to the concerns of the masses, safeguard the interests of the masses, pay attention to solve practical problems, solve the people around the unwholesome tendencies especially on eat, take the card, Yong lazy luxury, extravagance and waste 36、fees, privileges and other issues, timely and effective, without any discount to solve, to improve the style of real implementation of the requirements of real to the grassroots, real let group Benefit the public.(a) focus on solving the four winds outstanding issuesThe central and provincial requir37、ements, the county leadership and leading cadres of key performance concept is not correct, do not dare to play, to engage in image project, political project, a leadership guide, a set of ideas, orders and prohibitions, and a policy, there are countermeasures county. The units directly under the he38、avy focus on solving Yung lazy drag, buck passing skin, work is not implemented, the service is not active. The dynamic problem of law enforcement and supervision departments and window units, service industry mainly solve the door hard, ugly face, something difficult, and arbitrary charges, fines, 39、levies, and breach of privilege, chinakayao, not the problem of law. The township, street The collar of leading bodies and leading cadres to solve key does nottheir own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To 40、establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakt41、hroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources within t42、he group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation of ec43、onomic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and workers o44、f the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of indu45、strial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance core46、 competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, financial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development.