jBJCO4駐地辦橋后張法空心板首件工程橋梁監(jiān)理實施細則.

1、in order to ensure normal teaching order, protecting students healthy growth, ensuring that national (property) is not lost, to prevent or minimize the occurrence of safety accidents, follow the prevent, rescue each other, ensure safety and reduce losses principle, according to the local conditions,

2、 make the management system. 1, the principal is the responsibility of school safety, school security under the leadership of president security work leading group. the head teacher to the leadership team is responsible for, implementation of the accountability system. 2, school monthly student know

3、ledge about safety education, education should be diversified in the form every safety education for students of classes per week should be targeted. to carry on emergency issues dealing with education in general, self-help and mutual rescue knowledge. emergency calls (such as 110, 119, 122, 120, an

4、d so on) use common sense in education. 3, the establishment of major accident reporting system. school students report major accident within an hour of education; student run and disappearances to report; report of the accident to a written report in triplicate, a correctional centre, a police stat

5、ion, a township peoples government shall not conceal the accident. 4 week, teachers are on duty system, establish and improve the leadership values; strengthen the education, management of teaching activities in schools to ensure normal teaching order; responsible for school safety leadership always

6、 maintained close contact and district police stations, canvassing support from the police station on school safety and help. 5, strengthening teachers moral education, establish a dedicated love, improving education quality, observe the students psychological changes at any time and take preventive

7、 measures, no corporal punishment and covert corporal punishment on students, student out of the classroom, schools may not be. 6, units or departments use student street propaganda or participate in the celebrations, as well as participating in other social work, without approval of the correctiona

8、l centre, school principals consent, without organization. without the approval of relevant departments, may organize students to participate in fire fighting, disaster relief and so on. 7, schools should educate students to obey the school rules and regulations, on time, on time home to prevent acc

9、idents. 8, school to school inspections on a regular basis, found hidden in time, and in severe cases, it is hard to eliminate immediately closed, and reported to the local peoples government, education, and rule of law section. 9, the school should always check the internal walls, retaining walls,

10、ponds, railings, handrails, doors, windows, staircases and a variety of sports, extracurricular activities, facilities such as fire safety, infrastructure security, unsafe facility to immediately repair and demolition to ensure that teachers and students work, learn, live venues and facilities are s

11、afe and reliable. song lin xiang liu jia ping elementary school march 2016 song lin xiang liu jia ping primary school fire safety systems to enhance fire safety, protection of public property and the life and property safety of teachers and students, school fire safety into day-to-day management, is

12、 developing the following fire safety system. 1, strengthen fire safety education of the whole school. according to the requirements of the fire services act, so that everyone has of keeping fire control safety, protecting fire control facilities, fire prevention, reports of fire西寶高速公路改擴建工程b-jc04駐地辦

13、后張法預應力砼首件工程監(jiān)理實施細則(一) 、總則為加強西安至寶雞高速公路改擴建項目的工程質量管理，確保工程質量，落實管理處在西寶改擴建項目實施 “首件工程認可制”的決定，根據本工程特點，特制定后張法預應力砼首件工程施工監(jiān)理實施細則。(二) 、施工組織設計的編制及報審1.要求施工單位技術管理部門,詳細編寫后張法預應力砼施工組織設計,報駐地辦審批。2.駐地辦對施工組織和施工工藝進行認真審核,書面批復實施樣品工程。3.施工單位嚴格按照批準的施工組織設計施工,施工前由項目總工召集測量、試驗、質檢、技術員及各施工隊負責人和主要操作人員進行詳細地技術交底,明確各自崗位職責。在施工過程中詳細記錄操作程序和有

14、關技術指標,修正完善施組設計,保證其順利實施。（三）施工前的準備工作1、梁板預制廠已按總監(jiān)辦水泥砼拌和場和梁板預制場布置標準要求，根據實際情況，本著“有利于工序的周轉、有利于排水、有利于文明施工”的原則，對場地進行了硬化，對臺座、排水系統(tǒng)、鋼筋加工區(qū)、存梁區(qū)進行了合理的布設，現(xiàn)已建設完畢，并經監(jiān)理工程師的驗收。2、預制梁臺座兩側已布設好噴淋養(yǎng)生管道，對噴水孔大小、間距、交角的設計均進行了試噴，能確保預制梁頂板、腹板同時噴淋養(yǎng)護，在排水溝口設置沉淀過濾池，凈化后的水可重復利用。3、千斤頂選用上海生產的2臺200噸穿心式千斤頂，油表粘度1.5級，每小格0.5mpa，油泵選用柳洲生產的低流量，高壓力

15、的液壓泵，并且千斤頂、油泵、油表已經陜西省計量研究院配套校核，張拉力與油表讀數之間的關系已確定，簽定結果如下表：千斤頂號表號 壓力(kn) 油表讀數(mpa)0400800120016002000f=31.30461p+11.296079f-力值(kn)p-壓力表(mpa)2000kn09022209.4564011.725.438.250.863.42000kn10931309.4564011.925.538.451.163.8f=31.139729p+10.275991f-力值(kn)p-壓力表(mpa)4、模板長度3m、2m、1m三種規(guī)格，面板厚度6mm，已試拼，并編號。接縫平整、嚴密，

16、對局部錯臺進行了打磨，平整度小于1.5mm，強度和剛度滿足施工要求。內模采用河北衡水橡膠廠定制的充氣膠囊，設計充氣壓力0.02mpa，現(xiàn)場監(jiān)理已對膠囊的斷面尺寸及充氣后是否漏氣進行了檢驗 。5、金屬波紋管鋼帶進場必須附有合格證和質量保證書，鋼帶厚度不小于0.3mm，現(xiàn)場卷制的波紋管必須進行試驗，檢測在通過1kn徑向力作用下的徑向鋼度和抗?jié)B漏試驗，波紋管接長前用平口鉗將卷邊現(xiàn)象壓直，波紋管套接用直徑稍大、長度為管徑5-7倍的同材質波紋管套接，用膠帶密封。6、監(jiān)理工程師已對通道、預應力砼圖紙進行了認真研讀，深刻領會了設計意圖，對跨徑25m的后張預應力砼長度、斜交角及梁底三角墊層進行了認真的復核，并

17、建立了施工臺帳。7、按照以前施工經驗，對薄壁構件鋼筋較密的砼振搗時，采用50振搗棒端部焊-60cm長16鋼筋，對鋼筋密集區(qū)和波紋管部位振搗，效果較好，所以要求承包人提前作好此項目準備工作。（四）施工過程控制：1.底模處理：首次使用時，對底模鋼板表板表面應采用角磨機全面打磨，徹底清理掉所有鐵銹和鐵皮，并用柴油清洗干凈，待現(xiàn)場監(jiān)理檢查合格后涂抹脫模劑，并用塑料薄膜貼蓋。同時現(xiàn)場監(jiān)理應認真檢查三角墊層的設置尺寸和方向，及吊梁孔底板位置的設置是否合理。2.鋼筋的加工及安裝：a.鋼筋安裝前在底模邊緣按計劃鋼筋間距標示出各種鋼筋安裝位置及跨中、堵頭板位置，所有的鋼筋都必須在鋼筋加工廠焊接定型后才能在臺座上

18、掛線綁扎?，F(xiàn)場監(jiān)理對首片梁板鋼筋要逐型號、逐規(guī)格，逐間距實測實量。并嚴格控制防止內模上浮的環(huán)形箍筋高低尺寸，間距按不大于50cm設置，并在其下沿梁縱向通長布置3-4根8鋼筋，控制內模變形或上浮，并在梁端部位，環(huán)形箍筋內，內模頂面設置3mm厚，1米至2米長52cm寬的槽型鋼板，以更好的控制梁端頂面尺寸和線型。嚴格控制絞縫鋼筋的外露尺寸和間距、線型，對頂板護攔、伸縮縫及其它預埋筋應掛線安裝固定，確保外露長度和位置。間距。保護層橡膠墊塊按1米間距梅花型布置，待現(xiàn)場監(jiān)理檢查驗收后方可進行下道工序的施工。b.鋼筋骨架成型后安裝波紋管前，應精確計算出波紋管安裝位置，并加工定位網，定位網用8鋼筋焊為“”型，

19、曲線段50cm，直線段100cm的間距焊接固定，確保位置準確，線型平順，然后用直徑4.5cm的通長pvc穿管其內。3.模板安裝：a.模板安裝采用“側包底”，應本著“寧低不高，寧窄不寬、寧短不長”的原則，按規(guī)范偏差的負值控制。模板安裝前，先在臺座兩側粘貼厚度5mm，寬度2cm的橡膠條，保證外模與臺座緊貼不漏漿。模板表用面衛(wèi)生紙抹試不發(fā)黃，不發(fā)黑，并涂抹脫模劑后方可安裝，采用16對拉螺栓上下固定，端模采用10mm厚定型鋼模制成，現(xiàn)場監(jiān)理應認真檢查模板高度，長度、寬度和堵頭板角度，模板間隙和預埋錨栓孔位置，并掛線校正側模線型。模板檢查合格后現(xiàn)場監(jiān)理應再次檢查鋼筋保護層厚度及有無漏筋、少筋現(xiàn)象。b.為

20、了提高預應力砼砼密實度及外觀質量，在腹板外側40cm高位置安裝興平生產的1.5kw高頻俯著式振動器，間距按1.5米控制。為了避免開啟俯著式振動器時模板與砼表面發(fā)現(xiàn)共振現(xiàn)象，俯著式振動器的安裝應一正一豎，在振動器底部襯墊硬質橡膠并注意振動器電機的旋轉方向，以保證砼均勻密實外觀色澤一致。4.混凝土的澆注：a.在頂板跨中、1/2、1/4、1/8斷面設置內徑為2cm的pvc管材7個預留孔，用以檢查頂板厚度。b.運至現(xiàn)場的砼混合料，必須進行坍落度試驗，試驗應在拌和站和澆注現(xiàn)場分別檢測，以便掌握環(huán)境溫度、運輸時間、間歇時間對坍落度的損失大小，砼坍落度控制在7090mm之間。c.砼澆注分兩次進行，首先澆注底

21、板砼，采用30、50插入式振搗棒，并避免振搗棒碰撞鋼筋及波紋管，并嚴格控制底板厚度，底板澆注結束后，迅速安裝充氣膠囊，嚴格按照膠囊出廠說明書中0.02mpa的充氣壓力充氣，充氣結束后，現(xiàn)場監(jiān)理再次檢查內模的上下、左右位置及尺寸，確保無誤后才能澆注腹板砼，并隨時觀察膠囊的氣壓是否保持在穩(wěn)定狀態(tài)。d.腹板與頂板砼澆注，將料斗中砼放至臺座兩側鋼筋板上，采用人工翻拌反鏟對稱入模，避免對內模產生偏心擠壓，澆注由梁一端向另一端進行，先將砼拌和料入模30cm高，2米長左右時，用30振動棒配合焊有16鋼筋的振搗棒交叉振搗并啟動俯著式振動器按5秒時間點振，當砼不再下沉時，再澆注其上30cm高砼，以此類推，澆注腹

22、板過程中，注意活動波紋管內pvc管，直至腹板砼澆注完畢，再對稱開啟俯著式振動器，按5秒時間間距點振兩次后澆注頂板。頂板澆注時應嚴格控制梁高尺寸，用木抹提漿抹面一次，待砼初凝前，再次收面一次，避免頂板出現(xiàn)裂紋，二次收面后，及時用特制的拉毛工具，沿梁頂橫向拉毛，保證每米不少于50道，深度不小于6mm。e.每片預應力砼在澆注底板、側板、頂板及梁端跨中時，共取六組砼試件，監(jiān)理組抽檢一組，其中三組送標養(yǎng)護，其余三組置于梁頂與梁同條件養(yǎng)護，作為張拉和了解砼強度實際增長情況的依據。5.砼養(yǎng)生：頂面砼拉毛結束后，立即用土工布置覆蓋，開啟噴淋養(yǎng)護系統(tǒng)，安排專人管理，要經常保護砼表面濕潤，直至梁板張拉壓漿、移存。

23、6.拆模：在砼強度達到2.5mpa時拆模內外模，拆模應細心操作，避免對梁體表面棱角產生碰撞，拆模后及時在梁端側面噴涂梁體編號、預制日期、張拉日期、壓漿日期。7.鋼絞線下料，編束及穿束：a.鋼絞線下料長度按管道長度加兩端70cm長工作長度下料，下料采用鋼絞線從10cm槽鋼上穿過，到達控制點后，在距切口5cm處用鐵絲綁扎，用砂輪切割機鋸切，以免鋼絞端頭松股，當天下料當天用完，避免生銹和受到污染。b.下好料的鋼絞線必須編號編束，用透明膠帶在每根鋼膠端頭將編號粘貼，并按兩端50cm，中間11.5m長間距梳整編束，用1.6mm退火鐵絲捆綁固定。穿束前每束鋼絞線端頭包囊，避免劃傷波紋管道。8.張拉：當梁體

24、同條件養(yǎng)生試件強度達45mpa及7天齡期后，方可張拉。a.將鋼絞線按編號每根對應穿過錨孔，使錨具靠近錨墊板。b.將夾片用皮筋捆住，使夾片沿鋼絞線滑移到錨環(huán)孔內。c.夾片安裝后，用一內徑略大于鋼絞線直徑，長度為500mm的鋼管將夾片捅緊，并確保夾片之間縫隙均勻一致。d.安裝限位板，將鋼絞線穿入油頂，要保證千斤頂與錨墊層垂直，并且與鋼絞線在一條軸線上。e.張拉控制力及油表讀數：預應力砼采用公稱直徑15.24，公稱面積139m，標準強度1860mpa的高強度低松弛鋼絞線，單根張拉控制力f=18600.75139=193.905kn，張拉程序如下表。千斤頂編號表號壓力（kn）油表讀數（mpa）0400

25、8001200160020002000kn2000kn張拉程序：010%（量測原始間隙）20%（量測伸長值）50%（量測伸長值）100%（量測伸長值）(持荷2min錨固)f.張拉 ：張拉采用張拉力與伸長值雙控的辦法：橫向兩端同時張拉n2束至其控制張拉力的50%，再橫向兩端同時張拉n1束至其控制張拉力的50%。橫向兩端同時張拉n2來至其控制張拉的100%，橫向兩端同時張拉n1來至其控制張拉力的100%，當實測伸長值與理論伸長值之差控制在6%以內時，持薦2min，錨固，并仔細檢查鋼絞線有無滑絲、斷絲現(xiàn)象，當出現(xiàn)斷絲時，按規(guī)定處理。還應檢查鋼束夾片齒印是否位于同一斷面，確保無誤后，用砂輪機切割多余鋼

26、絞線，外露長度保證3cm，并用水泥砂漿封錨。9.壓漿：按照設計圖紙要求，采用真空壓漿工藝，可保證壓漿密實度和減少氣泡，壓漿宜先下后上，并對真空吸漿工藝進行必要的試驗。水泥漿的水灰比控制為0.30.4，漿體流動度為3050s。a.壓漿前檢查孔道內是否存在有廢水、廢液，若有可開啟蓋帽下面的排廢孔，開啟壓漿泵，利用壓力差將其排出孔道。b.確定水泥漿合格后，開啟真空機抽真空，至真空度達-0.06-0.1mpa時，再啟動壓漿泵，讓合格的水泥漿以合適的速度進入管道。c.當水泥達到抽真空端時，打開該端的三通的排廢液通道，直至排廢管排出的水泥漿暢通并與壓漿端壓出的水泥漿稠度一致時，停止壓漿，用螺栓密封排氣孔。

27、d.再次開啟壓漿端蓋帽上的排氣孔（打開排氣閥），啟動壓漿泵直至排氣孔排出的水泥漿流動暢通且與漿桶內的水泥漿稠度一致時，停止壓漿。并用螺栓密封排氣孔。e.開啟壓漿泵，壓力控制在0.5mpa左右，持壓2min，關閉進漿口閥門，停止壓漿。f.移至下一孔道，繼續(xù)壓漿，直至壓漿結束。在壓漿過程中，現(xiàn)場監(jiān)理應認真檢查水泥性能及持薦壓力并作好壓漿記錄。g.壓漿結束后，現(xiàn)場監(jiān)理檢查梁端砼鑿毛及清洗和鋼筋布設情況，合格后及時封端，并嚴格控制封端長度，交角。h.水泥漿試件按每片梁5組抽檢，監(jiān)理組抽檢一組，其中三組送標養(yǎng)室養(yǎng)護，其余兩組與梁同條件，作為移梁時水泥漿強度的依據。10.移梁：當水泥漿強度達到40mpa時

28、，方可移梁，移梁采用龍門吊機，用鋼絲繩捆綁梁體時，應采取必要的襯墊措施，以免損傷梁體砼，預應力砼的存放嚴格按照設計給定的距板端40.6-47cm支承中心線擱置，因梁體較重，要求按一層存放，存梁時間不超過90天，以免梁體產生較大的上拱度。13.監(jiān)理日記記錄的內容：施工日期、氣溫、橋梁名稱、梁體編號、鋼筋、模板實測數據，張拉千斤頂油表編號，油表讀數，實測伸長量，砼澆注盤數及澆注、間距時間，試件抽檢編號，水泥漿性能指標，壓漿順序、時間、坍落度和施工中出現(xiàn)的不正常問題和解決方法。14.后張法預應力砼使用的表格鋼筋加工及安裝檢查表模板檢查表砼施工記錄表拆模檢查表養(yǎng)護檢查表張拉記錄表壓漿記錄表水泥砼試件抗

29、壓強度表水泥漿試件抗壓強度表坍落度試驗表（五）預應力砼梁質量檢驗標準見下表檢查項目質量要求檢查備注設計值或允許誤差質量要求頻率方法砼抗壓強度（mpa）不小于c40符合設計要求2組/每片28天標養(yǎng)梁板長度（mm）+5，-102點 /每片用鋼尺量寬度（mm）203點/每片用鋼尺量高度(mm)52斷面/每片用鋼尺量斷面尺寸（mm）頂板厚+5，08個點/每片用鋼尺量底板厚2點/每片用鋼尺量有要求時可打孔腹板厚2點/每片用鋼尺量平整度（mm）53點/每片每側2m直尺橫系梁及預埋件位置（mm）5每件用鋼尺量（六）、預應力砼鋼筋加工及安裝質量檢查及驗收標準見下表檢查項目規(guī)定值或允許偏差檢查規(guī)定備注頻率方法受

30、力鋼筋間距（mm）102個斷面/每片用鋼尺量橫向水平筋、箍筋間距（mm）10510個間距/每片用鋼尺量鋼筋骨架尺寸(mm)長10按骨架總數的30%用鋼尺量寬或高5保護層厚度（mm）3沿模板周邊量8處/每片用鋼尺量(七)、后張法預應力砼施工及監(jiān)理工作職責、工序、控制重點責任人施工工藝監(jiān)理檢查內容承包商：施工前準備審核承包人管理機構、責任人名單、質量保證體系、進駐工地人員、進場設備、材料及進貨來源、施工組織設計、梁廠、拌和站規(guī)劃建設、千斤頂油表校驗、模板進場驗收。張拉底模檢查、千斤頂與油表是否配套、張拉程序是否符合規(guī)范要求、伸長量、油表讀數是否符合要求、砼強度、千斤頂與梁端是否垂直、鋼膠線編束編號

31、。鋼筋安裝各種鋼筋型號、規(guī)格、根數、間距、長寬高、保護層厚度、端橫梁及護欄、伸縮縫預埋筋位置、鋼筋焊接長度監(jiān)理組：立模梁長、梁高、梁寬是否符合設計、梁端斜度是否合格、線型平順情況、接縫、錯臺、模板表面是否干凈、錨栓孔位置砼澆注配合比是否準確、攪拌時間是否較長、坍落度、砼澆注工藝、砼攤鋪厚度、收面、拉毛、砼試件取樣拆模、養(yǎng)護養(yǎng)護是否及時、拆模砼強度、對梁體有無碰撞、是否存在露筋、蜂窩磨面、養(yǎng)護時間移梁起吊是否采取質量、安全措施、支承點位置是否符合設計、存梁時間(八)、質量目標西寶改擴建項目建設為國優(yōu)工程和西部地區(qū)高速公路改擴建示范工程，達到“三年無病害，設計使用年限內不大修”質量目標。 具體工程

32、質量指標為：交工驗收時，分部工程質量評定全部合格，工程質量單點檢測合格率達到93%以上，關鍵指標單點檢測合格率達到96%（含96%）以上。分項工程檢查合格率100%，質量評定全部合格。(九)、監(jiān)理責任人：駐地辦高級駐地為質量管理主要責任人，副高級駐地為質量管理第一責任人，試驗室主任，各專業(yè)工程師為質量管理直接責任人。b-c05標橋梁工程監(jiān)理責任人：吳勝龍 王中革。b-c06標橋梁工程監(jiān)理責任人：張崇林 劉裕春。以上后張法預應力砼首件工程施工監(jiān)理實施細則，請施工單位項目管理人員及工程技術人員，駐地辦監(jiān)理人員認真學習，在施工過程中檢查落實，確保橋涵工程施工質量，圓滿完成西寶改擴建工程任務。elec

33、tricity lines, equipment inspections, found hidden in time for rectification, maintenance, and security. 9, do not use an open flame in the classroom, prohibit burning stove, lit candles, mosquito repellent, no smoking, and banning messy wiring. without using any household appliances is not allowed.

34、 10, live on campus faculty members, must lead by example, and educate families and children ready to fire. 11, household use of gas in schools, to master proper usage, pay attention to the leak-proof, explosion-proof, fireproof, closing valve after use to ensure security. 12, dining room must be qu

35、alified, and annual testing of pressure vessels, to regularly check, the canteen workers must be certified, strictly by operation operation, gas tank and stove safety distance of 1.5 meters, to prevent accidents. 13, the adverse consequences caused by ignoring fire safety regulations, will be punish

36、ed, until investigated for legal responsibility. song lin xiang liu jia ping elementary school march 2016 xiang liu jia ping elementary school, pine slopes surrounding safety management system 1 teachers and students, the surrounding area of the school governance covers personal and food hygiene, cu

37、ltural events and other aspects, integrated governance shall obtain wide support and full cooperation of the community. on the surrounding environment in schools should be closely monitored. 2, school work at the same time, should pay attention to the safety management of school environment, should

38、take the initiative to contact the district police station, the village committee, correctional centre, township government, business management and other departments to do a good job management. 3, teacher on duty with the exception of inspections in schools, should also pay attention to environmen

39、tal inspections near the campus, found that the jobless migrants from rural areas, for example, harassment of students and a variety of accidents, according to different situations reported school officials or the police station in a timely manner, to protect the safety of students. 4, every day before school, teachers remind students, pay attention to traffic safety. 5, should educate students to respect social ethics, and various regulations, maintaining public order, and fight the bad guys, and grasp the correct ways and means of maintaining and improving students self-care abil