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醫(yi)院所有的(de)各類(lei)防輻(fu)射室(shi)，如醫(yi)療結構的(de)放療室(shi)、防輻(fu)射損傷評估平臺(tai)放射室(shi)和防輻(fu)射試驗室(shi)等(deng)作為一類(lei)具備(bei)特(te)殊功能(neng)、有特(te)別要(yao)求(qiu)(qiu)的(de)特(te)種(zhong)結構，其(qi)主要(yao)是大壁厚、頂(ding)墻地全封閉一體(ti)化。因此對其(qi)質(zhi)量標準(zhun)規范要(yao)求(qiu)(qiu)極高(gao)，目前在國內尚未建(jian)立其(qi)相(xiang)適應的(de)技(ji)術標準(zhun)，而更(geng)多參照大體(ti)積厚底板的(de)類(lei)似施工(gong)方(fang)法，這種(zhong)施工(gong)方(fang)法建(jian)出(chu)來的(de)防輻(fu)射室(shi)，在其(qi)特(te)定的(de)環境下混凝土分(fen)層界面易開裂，節點處溫(wen)度(du)裂縫易出(chu)現，質(zhi)量達(da)不(bu)到(dao)要(yao)求(qiu)(qiu)。

醫院防輻射工(gong)程施工(gong)方法包括如(ru)下步驟:施工(gong)前(qian)準備，綁(bang)(bang)扎(zha)厚(hou)底(di)板(ban)(ban)鋼(gang)筋(jin)(jin)，澆(jiao)(jiao)筑(zhu)厚(hou)底(di)板(ban)(ban)混凝(ning)(ning)土(tu)，厚(hou)底(di)板(ban)(ban)養護，綁(bang)(bang)扎(zha)截(jie)(jie)(jie)(jie)面柱(zhu)(zhu)鋼(gang)筋(jin)(jin)，支(zhi)設(she)(she)(she)柱(zhu)(zhu)模(mo)板(ban)(ban)，綁(bang)(bang)扎(zha)厚(hou)墻(qiang)體(ti)(ti)加強筋(jin)(jin)及(ji)埋(mai)(mai)設(she)(she)(she)降溫(wen)水(shui)(shui)管，綁(bang)(bang)扎(zha)大截(jie)(jie)(jie)(jie)面梁筋(jin)(jin)及(ji)埋(mai)(mai)設(she)(she)(she)降溫(wen)水(shui)(shui)管，支(zhi)設(she)(she)(she)梁柱(zhu)(zhu)墻(qiang)一體(ti)(ti)模(mo)板(ban)(ban)并處(chu)(chu)理(li)轉角縫，綁(bang)(bang)扎(zha)厚(hou)屋蓋板(ban)(ban)鋼(gang)筋(jin)(jin)及(ji)埋(mai)(mai)設(she)(she)(she)降溫(wen)水(shui)(shui)管，支(zhi)撐頂(ding)模(mo)板(ban)(ban)處(chu)(chu)理(li)與(yu)大截(jie)(jie)(jie)(jie)面梁、厚(hou)墻(qiang)體(ti)(ti)、截(jie)(jie)(jie)(jie)面柱(zhu)(zhu)模(mo)板(ban)(ban)節(jie)點，厚(hou)墻(qiang)體(ti)(ti)、截(jie)(jie)(jie)(jie)面柱(zhu)(zhu)、大截(jie)(jie)(jie)(jie)面梁及(ji)支(zhi)撐頂(ding)混凝(ning)(ning)土(tu)分(fen)層分(fen)項澆(jiao)(jiao)筑(zhu)，截(jie)(jie)(jie)(jie)面柱(zhu)(zhu)、大截(jie)(jie)(jie)(jie)面梁混凝(ning)(ning)土(tu)的(de)分(fen)層、分(fen)向澆(jiao)(jiao)筑(zhu)和振搗，抹(mo)面、掃出(chu)浮漿(jiang)及(ji)泌(mi)水(shui)(shui)的(de)處(chu)(chu)理(li)，整體(ti)(ti)結構的(de)溫(wen)度(du)控制、養護及(ji)成品保護。厚(hou)底(di)板(ban)(ban)鋼(gang)筋(jin)(jin)綁(bang)(bang)扎(zha)好之(zhi)后、澆(jiao)(jiao)筑(zhu)厚(hou)底(di)板(ban)(ban)混凝(ning)(ning)土(tu)前(qian)，在(zai)底(di)部墊(dian)層和模(mo)板(ban)(ban)之(zhi)間(jian)設(she)(she)(she)置(zhi)橡(xiang)膠(jiao)(jiao)止(zhi)水(shui)(shui)帶(dai)(dai)，避免混凝(ning)(ning)土(tu)澆(jiao)(jiao)筑(zhu)時(shi)模(mo)板(ban)(ban)與(yu)墊(dian)層面之(zhi)間(jian)漏(lou)漿(jiang)、泛漿(jiang)。厚(hou)底(di)板(ban)(ban)鋼(gang)筋(jin)(jin)上(shang)設(she)(she)(she)置(zhi)快(kuai)易(yi)收口(kou)網(wang)，快(kuai)易(yi)收口(kou)網(wang)分(fen)層分(fen)步安裝、綁(bang)(bang)扎(zha)，單(dan)片(pian)快(kuai)易(yi)收口(kou)網(wang)的(de)高度(du)為3倍鋼(gang)筋(jin)(jin)直徑，快(kuai)易(yi)收口(kou)網(wang)下片(pian)在(zai)內(nei)，快(kuai)易(yi)收口(kou)網(wang)上(shang)片(pian)在(zai)外(wai)，快(kuai)易(yi)收口(kou)網(wang) 片(pian)塞橡(xiang)膠(jiao)(jiao)止(zhi)水(shui)(shui)帶(dai)(dai)內(nei)側。

澆(jiao)(jiao)(jiao)注混(hun)凝(ning)(ning)土(tu)(tu)時(shi)(shi)，采(cai)用(yong)分(fen)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)連續交叉澆(jiao)(jiao)(jiao)筑(zhu)施工，每層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)澆(jiao)(jiao)(jiao)筑(zhu)厚(hou)度(du)為400-500mm。降溫(wen)水(shui)管(guan)(guan)(guan)為W形(xing)(xing)管(guan)(guan)(guan)片(pian)，相鄰兩(liang)管(guan)(guan)(guan)間距為450-550mm，W形(xing)(xing)管(guan)(guan)(guan)片(pian)管(guan)(guan)(guan)口處(chu)(chu)用(yong)鋼(gang)(gang)板(ban)點(dian)焊(han)作為臨時(shi)(shi)封(feng)堵，W形(xing)(xing)管(guan)(guan)(guan)片(pian)通過短鋼(gang)(gang)筋與大(da)(da)截(jie)(jie)面(mian)(mian)(mian)梁筋焊(han)接(jie)固定(ding)，澆(jiao)(jiao)(jiao)筑(zhu)過程(cheng)中采(cai)用(yong)水(shui)管(guan)(guan)(guan)降溫(wen)，所述的降溫(wen)水(shui)管(guan)(guan)(guan)采(cai)用(yong)地下(xia)水(shui)做自然冷卻循環水(shui)，并(bing)(bing)定(ding)期測量循環水(shui)溫(wen)度(du)。支撐頂(ding)模板(ban)處(chu)(chu)理與大(da)(da)截(jie)(jie)面(mian)(mian)(mian)梁、厚(hou)墻體、截(jie)(jie)面(mian)(mian)(mian)柱模板(ban)節點(dian)時(shi)(shi)，大(da)(da)截(jie)(jie)面(mian)(mian)(mian)梁的負彎矩(ju)鋼(gang)(gang)筋和(he)支撐頂(ding)板(ban)的負彎矩(ju)鋼(gang)(gang)筋高(gao)(gao)出支撐頂(ding)板(ban)面(mian)(mian)(mian)時(shi)(shi)增(zeng)加(jia)50-70mm混(hun)凝(ning)(ning)土(tu)(tu)澆(jiao)(jiao)(jiao)搗(dao)(dao)后局(ju)部超(chao)高(gao)(gao)，大(da)(da)截(jie)(jie)面(mian)(mian)(mian)梁中的主梁底(di)(di)標(biao)高(gao)(gao)下(xia)降30-50mm大(da)(da)截(jie)(jie)面(mian)(mian)(mian)梁中的次梁的梁底(di)(di)標(biao)高(gao)(gao)下(xia)降30-40 mm達到局(ju)部起拱。混(hun)凝(ning)(ning)土(tu)(tu)澆(jiao)(jiao)(jiao)筑(zhu)前(qian)(qian)，先拌制與澆(jiao)(jiao)(jiao)筑(zhu)的混(hun)凝(ning)(ning)土(tu)(tu)同配合比(bi)石子砂漿潤濕混(hun)凝(ning)(ning)土(tu)(tu)輸送泵管(guan)(guan)(guan)，并(bing)(bing)均(jun)勻的鋪在澆(jiao)(jiao)(jiao)筑(zhu)面(mian)(mian)(mian)上(shang)，其(qi)(qi)厚(hou)度(du)20-30mm。混(hun)凝(ning)(ning)土(tu)(tu)上(shang)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)、下(xia)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)澆(jiao)(jiao)(jiao)筑(zhu)時(shi)(shi)要(yao)(yao)兩(liang)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)之間接(jie)縫，在振(zhen)搗(dao)(dao)上(shang)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)混(hun)凝(ning)(ning)土(tu)(tu)時(shi)(shi)要(yao)(yao)在下(xia)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)混(hun)凝(ning)(ning)土(tu)(tu)初凝(ning)(ning)之前(qian)(qian)進(jin)行，每層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)作業面(mian)(mian)(mian)分(fen)前(qian)(qian)、后二排振(zhen)搗(dao)(dao)， 道布置在混(hun)凝(ning)(ning)土(tu)(tu)卸料點(dian)，第二道設(she)置在中間和(he)坡角(jiao)及底(di)(di)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)鋼(gang)(gang)筋處(chu)(chu)，使混(hun)凝(ning)(ning)土(tu)(tu)流入下(xia)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)底(di)(di)部以(yi)確保下(xia)層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)混(hun)凝(ning)(ning)土(tu)(tu)振(zhen)搗(dao)(dao)密實，振(zhen)搗(dao)(dao)時(shi)(shi)振(zhen)搗(dao)(dao)棒要(yao)(yao)插入下(xia)一層(ceng)(ceng)(ceng)(ceng)(ceng)(ceng)混(hun)凝(ning)(ning)土(tu)(tu) 50-150mm。澆(jiao)(jiao)(jiao)筑(zhu)振(zhen)搗(dao)(dao)過程(cheng)中振(zhen)搗(dao)(dao)延(yan)續時(shi)(shi)間為15-30s，20-30min后對其(qi)(qi)進(jin)行二次復振(zhen)。

醫(yi)院防輻射工(gong)(gong)程(cheng)施工(gong)(gong)方法(fa)采用面(mian)向(xiang)支撐頂(ding)、厚(hou)墻體、厚(hou)底板(ban)三個界面(mian)不同構(gou)造尺寸特(te)征的(de)(de)(de)整(zheng)體分(fen)層(ceng)、分(fen)向(xiang)連(lian)續交叉(cha)(cha)澆(jiao)筑(zhu)的(de)(de)(de)施工(gong)(gong)方法(fa)和全過程(cheng)的(de)(de)(de)精(jing)細(xi)化(hua)溫(wen)控與養護技(ji)術，解決了大壁厚(hou)混凝土(tu)(tu)易開裂的(de)(de)(de)問題，較(jiao)傳統的(de)(de)(de)施工(gong)(gong)方法(fa)可大幅度(du)(du)(du)防輻射室結構(gou)工(gong)(gong)程(cheng)質量(liang)(liang)及抗輻射能力(li)；采取(qu)一(yi)個方向(xiang)、分(fen)層(ceng)、逐層(ceng)到頂(ding)的(de)(de)(de)連(lian)續交叉(cha)(cha)澆(jiao)筑(zhu)順序，澆(jiao)筑(zhu)層(ceng)的(de)(de)(de)設(she)置厚(hou)度(du)(du)(du)以450_為(wei)臨(lin)界，重點(dian)控制底板(ban)厚(hou)度(du)(du)(du)變(bian)異處(chu)質量(liang)(liang)，設(she)置成A類質量(liang)(liang)控制點(dian)；采取(qu)柱、梁、墻板(ban)節(jie)點(dian)的(de)(de)(de)參數化(hua)支模技(ji)術，精(jing)細(xi)化(hua)處(chu)理節(jie)點(dian)構(gou)造質量(liang)(liang)，可保(bao)證大壁厚(hou)的(de)(de)(de)醫(yi)院防輻射室特(te)種結構(gou)質量(liang)(liang)；緊急狀(zhuang)態下隨機(ji)設(she)置施工(gong)(gong)縫的(de)(de)(de)措施，且(qie)同步鋪50mm的(de)(de)(de)同配比無石子砂(sha)漿，可保(bao)證混凝土(tu)(tu)接觸處(chu)強度(du)(du)(du)和抗滲指(zhi)標；

防輻射特種結(jie)構中頂、墻(qiang)和地三界面全(quan)封閉大壁厚、大體(ti)積混凝(ning)(ning)土整體(ti)與質量控制施工，其關鍵在于基(ji)于實際尺寸構造(zao)的柱、梁、墻(qiang)與板交叉節(jie)點的支模技(ji)(ji)術，設置分層、分向(xiang)澆筑(zhu)(zhu)的無縫(feng)作業(ye)工藝技(ji)(ji)術，且考慮(lv)(lv)不(bu)同部位(wei)的分層厚度及其新老混凝(ning)(ning)土截面的處(chu)理問(wen)題，同時(shi)考慮(lv)(lv)為保證澆筑(zhu)(zhu)連續(xu)性(xing)而靈活(huo)隨(sui)機(ji)設置預(yu)留縫(feng)的技(ji)(ji)術，混凝(ning)(ning)土澆筑(zhu)(zhu)過程中實時(shi)溫控及全(quan)過程養護實施技(ji)(ji)術。

延邊厚鉛板正規靠譜