今天建筑(zhu)網片廠(chang)家介紹滑動滑升模(mo)板,組裝(zhuang)完畢并經檢在,符合組裝(zhuang)質量要(yao)求后,即(ji)可進(jin)人滑模(mo)施工階段。在滑模(mo)過程中,綁(bang)扎鋼筋、澆(jiao)筑(zhu)混凝土、提(ti)升模(mo)板這三個工序相互銜接,循環往(wang)復、連續進(jin)行(xing)。
模板滑升可分為初滑、正常滑升、末滑三個主要階段,建筑網片廠家介紹滑動滑升。
初滑(hua)(hua)(hua)(hua)階段是(shi)指工程開始時(shi)進(jin)行的初次提升(sheng)(sheng)模板(ban)(ban)階段(包括(kuo)在(zai)模板(ban)(ban)空滑(hua)(hua)(hua)(hua)后的首次繼續滑(hua)(hua)(hua)(hua)升(sheng)(sheng))。初滑(hua)(hua)(hua)(hua)階段主要對(dui)滑(hua)(hua)(hua)(hua)模裝(zhuang)置和(he)混凝(ning)土(tu)(tu)凝(ning)結狀態進(jin)行檢查。其基本做法是(shi): 混凝(ning)土(tu)(tu)分(fen)層澆筑到模板(ban)(ban)高度的2/3 (分(fen)層澆筑厚度200~300mm,分(fen)層間隔時(shi)間小于混凝(ning)土(tu)(tu)凝(ning)結時(shi)間),建筑網(wang)片(pian)廠家介紹滑(hua)(hua)(hua)(hua)動滑(hua)(hua)(hua)(hua)升(sheng)(sheng)。
當第一層鐵絲網(wang)片餛凝(ning)土的(de)強(qiang)度(du)達到(dao)出(chu)模強(qiang)度(du)時,進行試探性的(de)提(ti)升(sheng)(sheng)(sheng)(sheng)(sheng),即(ji)將(jiang)模板(ban)(ban)提(ti)升(sheng)(sheng)(sheng)(sheng)(sheng)1-2個千(qian)斤頂(ding)行程30~60mm,觀(guan)察并全面檢在液壓系(xi)統和模板(ban)(ban)系(xi)統工作(zuo)情況。試升(sheng)(sheng)(sheng)(sheng)(sheng)后(hou),每澆(jiao)筑(zhu)(zhu)200 300mm高度(du),再提(ti)升(sheng)(sheng)(sheng)(sheng)(sheng)3~ 5 個千(qian)斤頂(ding)行程,直(zhi)至澆(jiao)筑(zhu)(zhu)到(dao)距模板(ban)(ban)上口(kou)約50~ 100mm即(ji)轉人正常滑(hua)(hua)升(sheng)(sheng)(sheng)(sheng)(sheng)階段。正常滑(hua)(hua)升(sheng)(sheng)(sheng)(sheng)(sheng)階段是指經過初滑(hua)(hua)階段后(hou),澆(jiao)筑(zhu)(zhu)混(hun)凝(ning)土綁(bang)扎鋼筋和提(ti)升(sheng)(sheng)(sheng)(sheng)(sheng)模這三個主(zhu)要工序(xu)處(chu)于有節(jie)奏地循環操作(zuo)中,混(hun)凝(ning)土澆(jiao)筑(zhu)(zhu)高度(du)保持(chi)與提(ti)升(sheng)(sheng)(sheng)(sheng)(sheng)高度(du)相等(deng),并始終在模板(ban)(ban)上口(kou)約300mm內(nei)操作(zuo),建筑(zhu)(zhu)廠家(jia)介紹滑(hua)(hua)動滑(hua)(hua)升(sheng)(sheng)(sheng)(sheng)(sheng)。
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在(zai)正常滑(hua)(hua)升(sheng)(sheng)階段,模板滑(hua)(hua)升(sheng)(sheng)速度(du)是影響混(hun)凝(ning)土施工質量(liang)和(he)工程(cheng)進度(du)的(de)關(guan)鍵因素。原則上滑(hua)(hua)升(sheng)(sheng)速度(du)應與混(hun)凝(ning)士凝(ning)固(gu)程(cheng)度(du)相適應,并應根據滑(hua)(hua)模結構的(de)支(zhi)撐情況(kuang)來確定(ding)。當支(zhi)撐桿(gan)不會發生失(shi)穩時(少數情況(kuang),如支(zhi)撐桿(gan)經特別(bie)加固(gu)等),滑(hua)(hua)升(sheng)(sheng)速度(du)可按混(hun)凝(ning)土強度(du)來確定(ding); 當支(zhi)撐桿(gan)受壓可能(neng)會發生失(shi)穩時,滑(hua)(hua)升(sheng)(sheng)速度(du)由支(zhi)撐桿(gan)的(de)穩定(ding)性來確定(ding)。在(zai)正常氣溫條件下(xia),滑(hua)(hua)升(sheng)(sheng)速度(du)一-般(ban)控制(zhi)在(zai)150-300mm/h范圍內,建(jian)筑(zhu)網片廠(chang)家介(jie)紹滑(hua)(hua)動滑(hua)(hua)升(sheng)(sheng)。
末滑階段是配合混凝土的最后澆筑階段,模板滑升速度應比正常速度稍慢。地熱網片混(hun)凝(ning)土澆完后,尚(shang)應繼續滑升(sheng),直(zhi)至模板與(yu)混(hun)凝(ning)土脫(tuo)離不致被粘住為止,建筑網片廠家(jia)介紹滑動滑升(sheng)。相(xiang)關文(wen)章:煤礦支護(hu)網片。