北京雨季施工方案

編號：XX市**少年宮工程 雨季施工方案編制人：審核人：批準人：編制單位：目錄編制依據(jù)··············································································································································1工程概況··············································································································································1整體概況·······································································································1施工條件·······································································································1施工總體安排······································································································································1施工準備·······································································································1機具、物資配置······························································································2組織機構(gòu)·······································································································3雨季主要施工方法······························································································································3回填土工程····································································································3塔吊基礎周圍排水···························································································4腳手架工程····································································································4砼工程·········································································································4鋼筋工程·······································································································5模板工程·······································································································5地下外墻防水工程···························································································5現(xiàn)場臨建·······································································································5現(xiàn)場臨時用電·································································································6預留洞口及后澆帶防雨·····················································································6機電施工·······································································································6技術質(zhì)量保證措施······························································································································7雨季施工材質(zhì)要求···························································································7防汛搶險工作必須及時、有效············································································7安全措施··············································································································································7應急預案··············································································································································8目的···········································································································8危險源分析····································································································8應急組織機構(gòu)及職責························································································8應急響應措施·································································································94.2.3土方回填,應安排在晴天，并且連續(xù)進行，盡快完成?；靥钸^程中，遇雨時，用塑料布覆蓋,防止雨水淋濕已夯實部分。雨后回填前認真作好填土含水率測試工作，含水率較大時將土鋪開晾曬，待含水率測試合格后方可回填。(最佳含水率通過標準擊實試驗測定,詳見《施工試驗方案》)2.4由于基坑較深，回填土需要一定時間，故回填前在回填面上每隔30米做一800×800×800mm(深)集水坑，兩側(cè)回填時留槎，并留出坡度，以便及時把雨水排出。塔吊基礎周圍排水三臺塔吊均座落于基坑內(nèi)，為了回填基坑土方,四周砌筑保護墻,保護墻高出地面500mm,高出地面部分用防水砂漿抹面,頂部用蓬布覆蓋嚴實。在基坑內(nèi)一角用磚砌（表面抹灰）一800×800×800mm（深）的集水坑，用污水泵及時將基坑內(nèi)積水抽走,以保證塔吊基礎下部土層不受雨水的浸泡而降低承載力。塔吊基礎排水圖詳見附圖-02。腳手架工程4.4.1外腳手架座落于回填土上，故必須保證回填土的質(zhì)量，同時立桿下墊通長木方,并在木方下滿鋪碎石子，使重量均布于回填土上,在距腳手架外立桿外500mm處設一排水溝,及時將雨水排走,以免腳手架基礎被雨水浸泡造成地基沉陷。4.4.2現(xiàn)場專職安全員需在雨前檢查立桿墊木是否有效，回填土有無塌陷；雨后基礎有無沉陷,立桿有無下沉，腳手架有無變形，如有不正常之處，須迅速加以加固和修整。4.4.4上人馬道加上防滑條，做好防滑措施；馬道兩側(cè)加設300高擋腳板,同時加設不低于1.2米的安全護攔,立封密目安全護網(wǎng)。4.4.4大雨期間，不得進行腳手架的搭設和拆除；大雨、大風后應及時對腳手架進行檢查修理，有安全隱患的整改合格后方可投入使用。4.5腳手架防雷采用φ12圓鋼每三層每邊兩點與結(jié)構(gòu)防雷（或防雷帶）相焊接，且必須腳手架整體導電不間斷性（可在節(jié)點位置刮去鋼管漆來保證），腳手架搖測電阻不大于10。雨前認真檢查腳手架的防雷接地，對不符合處從速進行修補，避免遭受雷擊。4.5砼工程砼澆筑盡量避開雨天,如遇下雨,應采取如下措施：4.5.1墻、底板砼澆筑中遇到大雨時，，將已澆筑的砼振搗密實（留好接搓）后用塑料布覆蓋，并將塑料布綁扎牢固,防止被風吹走。4.5.2頂板砼澆筑遇大雨時，及時留置施工縫，邊澆筑邊振搗密實（用抹子抹平），同時用塑料布覆蓋,嚴禁砼內(nèi)的水泥漿流失，澆筑到位后立即停止?jié)仓?.5.3如遇小雨時及時振搗抹壓和覆蓋，保證水泥漿不流失。5.4本工程采用商品砼，為把好砼質(zhì)量關，定期派人去攪拌站檢查其砂、石堆料場，水泥倉庫，檢查砂、石的含泥量，水泥的防雨情況。嚴禁將含泥量超標的砂、石和失效的水泥用于本工程中。4.6鋼筋工程4.6.1現(xiàn)場鋼筋堆放應墊高，以防鋼筋泡水銹蝕。鋼筋原材堆放在磚砌地壟上；鋼筋半成品應堆放在墊高的木方上。4.6.2遇雨時,用塑料布或彩條布臨時加以遮蓋；雨后鋼筋視情況進行除銹處理，不得把銹蝕嚴重的鋼筋用于結(jié)構(gòu)上。6.3下雨天避免鋼筋焊接施工，以免影響施工質(zhì)量。4.7模板工程4.7.1大雨、大風后對模板架子等要及時檢查:扣件有無松動滑移、架子和模板有無變形、地基有無沉陷等現(xiàn)象。檢查完成后要及時修復，確定無安全隱患后方可繼續(xù)使用。4.7.2大雨、大風時，禁止進行大模板（框架柱定型鋼模）吊裝就位施工作業(yè)。已就位的大模板的對拉螺栓連接要牢固,模板支撐要穩(wěn)定。4.7.3大模板（框架柱定型鋼模）堆放場所要及時檢查，檢查架子的穩(wěn)定性，以防整體因雨淋地基下沉而失穩(wěn)傾倒及大鋼模的穩(wěn)定(自穩(wěn)角為60～80°),以防風大而傾倒。4.7.4制作模板的多層板和木方要堆放整齊，而且須用塑料布覆蓋防雨。7.5支立好的頂板?；驂δ＃缬龃笥晡礉仓?，應進行遮蓋，防止因雨淋而造成脫模劑的失效。雨后要認真檢查其平整度、垂直度和脫模劑附著情況，合格后方可澆筑砼。4.8地下外墻防水工程4.8.1地下外墻防水層施工不得在雨天進行。4.8.2雨季施工地下外墻防水層，確?；鶎颖砻鎽３指稍铮什淮笥?%（檢測方法為：下午2：00，將1m2卷材平鋪在找平層上，靜置3～4小時，掀開檢查覆蓋部位，找平層未結(jié)露，卷材未見水?。?.3雨后施工防水時應將地下外墻防水基層認真清理干凈，檢查周圍的施工環(huán)境是否滿足要求，特別是邊坡的穩(wěn)定情況。4.9現(xiàn)場臨建4.9.1檢查辦公室、宿舍及料庫屋面有無漏雨現(xiàn)象，對漏雨的部位及時修理完好。4.9.2室外地面全面硬化，道路場地等排水坡向正確、排水溝暢通無阻，確保施工現(xiàn)場無積水。4.9.3檢查食堂、廁所等的排水溝，及時疏通污水管道。4.9.4大雨來臨前要清理糞坑，避免糞坑因大雨襲擊而溢出。4.9.5雨季來臨前，對現(xiàn)場的庫房等作好地面加高處理，對于受潮易損物品制定專項保護措施（架空或覆蓋保護）。9.6雨天時，要檢查生活區(qū)宿舍基礎周圍有無積水，積極采取增設排水溝等措施保證其排水通暢，確保宿舍地基不下沉。4.10現(xiàn)場臨時用電4.10.1供電線路，不能直埋的一定要架空，室外的配電箱、電焊機和機械設備搭設防雨棚。值班電工要經(jīng)常檢查現(xiàn)場電氣設備的接地，接零保護裝置是否靈敏有效。雨季使用的電氣設備應采用雙重保護措施──漏電保護和絕緣保護，及時檢查電線絕緣是否良好，接頭是否包好，禁止電線浸泡在水中。4.10.2在潮濕和易觸及帶電體場所的照明電源不得大于24V;在特別潮濕的場所或金屬容器內(nèi)工作的照明電源電壓不得大于12V；手持燈的電源線不得使用塑料線。4.10.3塔司班前必須檢查機身是否帶電，漏電裝置是否靈敏有效，各種操作機構(gòu)是否靈活、安全可靠；塔司每次下班后，須關好駕駛室門窗，切斷配電箱內(nèi)電源開關，關好箱門上好鎖。10.4遇大暴雨或五級以上強風等惡劣天氣，應停止起重。4.11預留洞口及后澆帶防雨4.11.1±0.00處沒有封閉的大于1000m的預留洞口，在洞口四周用磚砌墻，高出結(jié)構(gòu)面300mm，墻身四周抹水泥砂漿。用鋼管搭架高度為1.0米，并間隔300mm用紅、白油漆刷好（并且內(nèi)掛密目安全網(wǎng)），覆蓋鐵皮瓦防雨，防止雨水流入地下室。4.11.2±0.00樓層處小于1.0米的洞口用預制板封蓋，四周用水泥砂漿封堵，避免雨水從這些洞口留入地下室。11.3未澆筑混凝土的后澆帶，為避免泥漿和雜物等流入，并雨水銹蝕鋼筋，在兩側(cè)砌一皮灰砂磚，上面鋪木膠合板并覆蓋塑料布防雨。為防止竹膠板的移動，在板上固定一木方。4.12機電施工4.12.1設備預留孔洞做好防雨措施。如施工現(xiàn)場地下部分設備已安裝完畢，要采取措施防止設備受潮、被水浸泡。4.12.2現(xiàn)場中外露的管道或設備，應用塑料布或其它防雨材料蓋好。室外電纜中間頭、終端頭制作應選擇晴朗無風的天氣，油浸紙絕緣電纜制作前須搖測電纜絕緣及校驗潮氣，如發(fā)現(xiàn)電纜有潮氣浸入時，應逐段切除，直至沒有潮氣為止。4.12.3敷設于潮濕場所的電線管路、管口、管子連接處應作密封處理。5.技術質(zhì)量保證措施5.1雨季施工材質(zhì)要求雨季施工用材料必須有出廠質(zhì)量證明、說明書等資料，特殊材料必須具備北京市建委頒發(fā)的材料準用證。5.2防汛搶險工作必須及時、有效防汛值班人員在值班期間，嚴守紀律不得擅自離崗，發(fā)現(xiàn)汛情及時向總指揮匯報，以便盡快采取各種防范措施，及時調(diào)動搶險人員到位。出現(xiàn)訊情緊急情況時防汛人員必須堅守崗位，查清險情，同時向上級有關領導和防汛部門匯報情況。按現(xiàn)場搶險有關要求馬上組織搶險工作，力爭把災害降到最低限度。搶險過程中必須認真服從指揮人員的統(tǒng)一指揮，并統(tǒng)一調(diào)配搶險過程中所需使用的物資用品。6.安全措施6.1加強現(xiàn)場施工人員的勞保工作，大雨天氣不得露天作業(yè)，小雨天氣穿雨衣、雨靴、雨鞋。電氣操作人員，必須穿絕緣鞋和戴絕緣手套6.2雨天，停止外腳手架的搭設與拆除等施工作業(yè)。6.3組織專人定期檢查基坑四周的護坡情況，并做好記錄，如有邊坡裂縫等可能出現(xiàn)塌方的現(xiàn)象，及時報告有關部門，以便及時采取有效措施。6.4雨天停止開挖基槽和基坑，對已開挖的須立即進行可靠的支撐防護，防止塌方。6.5塔機、腳手架按標準安裝避雷裝置，并確保完好、有效。6.6大雨來臨前，須清理外腳手架上的用具和其它物件；大雨后，應對塔基、道路和外腳手架等進行全面檢查，確認無沉陷和松動后方可使用。6.7電氣焊應嚴格按照有關標準規(guī)定進行操作，防止觸電事故發(fā)生，定期檢查機電設備的運行情況和檢修情況，確保機電設備的正常運行安全。6.8防汛搶險器材不得挪作它用。6.9雨季要定期進行塔吊垂直度觀測，并做好記錄；雨后要及時進行塔吊垂直度觀測，如偏差較大時，應停止使用，并及時通知相關單位和部門進行處理。7.應急預案7.1目的建立“集中領導、統(tǒng)一指揮、結(jié)構(gòu)完整、功能全面、反應靈敏、運轉(zhuǎn)高效”的應急反應體系，遵循團結(jié)協(xié)作和局部利益服從全局利益、下級服從上級的工作原則，統(tǒng)一指揮、分級負責。從切實保障人民生命財產(chǎn)安全，最大程度的減輕災害損失和成功舉辦2008奧運會的需要出發(fā)，有效防御災害性洪水，規(guī)范防汛抗洪程序，根據(jù)《中華人民共和國防洪法》和《中華人民共和國防汛條例》規(guī)定，結(jié)合施工現(xiàn)場防汛工作的實際情況，制定本預案。7.2危險源分析雨季施工主要是基礎肥槽回填土及地上結(jié)構(gòu)施工，由于現(xiàn)場面積較大，現(xiàn)場料具堆放較多，現(xiàn)場排水系統(tǒng)距離市政管線較遠，雨量過大時，現(xiàn)場排水對基坑邊坡將造成較大威脅。7.3應急組織機構(gòu)及職責7.3.1公司防汛指揮機構(gòu)總指揮：副總指揮：、、成員：工程技術部、綜合辦公室、物資采購部指揮機構(gòu)職責：組織學習和貫徹國家及地方有關消防法律、法規(guī)，督促制定執(zhí)行各種防汛規(guī)章制度。定期召開防汛工作會議，研究、布置、檢查防汛工作。組織防汛檢查。指導現(xiàn)場防汛工作，負責防汛事故的處理工作，對現(xiàn)場防汛工作做決策。7.3.2公司防汛指揮部辦公室設在工程技術部：主任：成員：、、、、聯(lián)系電話：汛期期間，公司設值班人員輪流值班。7.3.3項目經(jīng)理部組織機構(gòu)項目部成立應急救援指揮部，并設總指揮和副總指揮，下轄三個救援分隊。總指揮：副總指揮：應急救援一分隊負責人：應急救援二分隊負責人：應急救援三分隊負責人：職責總指揮：負責協(xié)調(diào)救援分隊及相關單位應急救援活動的關系；有權(quán)向業(yè)主應急指揮中心報告并發(fā)布疏散周圍作業(yè)人員的命令；宣布應急救援工作結(jié)束。副總指揮：全面協(xié)助總指揮的各項工作。其中包括現(xiàn)場救援指揮、救援人員調(diào)度、救援資源的有