工(gong)(gong)程(cheng)(cheng)植(zhi)(zhi)(zhi)筋(jin)(jin)(jin)加固(gu)(gu)(gu)施工(gong)(gong)流(liu)程(cheng)(cheng)一、施工(gong)(gong)準(zhun)備1.技術(shu)交底：根(gen)據(ju)設(she)(she)(she)計(ji)(ji)圖(tu)紙明確(que)(que)植(zhi)(zhi)(zhi)筋(jin)(jin)(jin)位(wei)(wei)置(zhi)、規(gui)格(ge)及深(shen)度(du)要(yao)求，編制施工(gong)(gong)方(fang)案(an)。2.材(cai)料驗(yan)(yan)收(shou)(shou)：核對植(zhi)(zhi)(zhi)筋(jin)(jin)(jin)膠(jiao)、鋼(gang)(gang)(gang)筋(jin)(jin)(jin)的合(he)格(ge)證及檢(jian)驗(yan)(yan)報告，確(que)(que)保(bao)(bao)膠(jiao)體(ti)符合(he)膠(jiao)標準(zhun)，鋼(gang)(gang)(gang)筋(jin)(jin)(jin)無銹蝕。3.設(she)(she)(she)備準(zhun)備：配備電(dian)錘(chui)、清(qing)孔(kong)(kong)設(she)(she)(she)備、注(zhu)(zhu)膠(jiao)器、拉拔儀等工(gong)(gong)具。二、定位(wei)(wei)放(fang)線采(cai)用(yong)(yong)(yong)全站(zhan)儀或鋼(gang)(gang)(gang)尺按設(she)(she)(she)計(ji)(ji)圖(tu)紙定位(wei)(wei)，標記鉆(zhan)(zhan)孔(kong)(kong)中心(xin)點，允許(xu)偏差≤3mm。三(san)、鉆(zhan)(zhan)孔(kong)(kong)施工(gong)(gong)1.選用(yong)(yong)(yong)比鋼(gang)(gang)(gang)筋(jin)(jin)(jin)直徑大4-6mm的鉆(zhan)(zhan)頭（如Φ14鋼(gang)(gang)(gang)筋(jin)(jin)(jin)用(yong)(yong)(yong)Φ18鉆(zhan)(zhan)頭）。2.鉆(zhan)(zhan)孔(kong)(kong)深(shen)度(du)≥15d（d為(wei)鋼(gang)(gang)(gang)筋(jin)(jin)(jin)直徑），保(bao)(bao)持孔(kong)(kong)垂直度(du)偏差≤2%。3.遇鋼(gang)(gang)(gang)筋(jin)(jin)(jin)時調整孔(kong)(kong)位(wei)(wei)并記錄。四、清(qing)孔(kong)(kong)處理(li)1.用(yong)(yong)(yong)鋼(gang)(gang)(gang)絲(si)刷清(qing)孔(kong)(kong)3次，氣泵吹(chui)掃至無粉塵。2.擦拭孔(kong)(kong)壁(bi)，保(bao)(bao)持孔(kong)(kong)內干燥(zao)。五(wu)、注(zhu)(zhu)膠(jiao)植(zhi)(zhi)(zhi)筋(jin)(jin)(jin)1.采(cai)用(yong)(yong)(yong)從(cong)孔(kong)(kong)底向(xiang)外注(zhu)(zhu)膠(jiao)，膠(jiao)體(ti)填(tian)充量≥孔(kong)(kong)深(shen)2/3。2.旋轉插入鋼(gang)(gang)(gang)筋(jin)(jin)(jin)至設(she)(she)(she)計(ji)(ji)深(shen)度(du)，確(que)(que)保(bao)(bao)膠(jiao)體(ti)溢出孔(kong)(kong)口。六、固(gu)(gu)(gu)化(hua)養護(hu)1.環氧類膠(jiao)常溫固(gu)(gu)(gu)化(hua)24小(xiao)時，冬(dong)季延長至48小(xiao)時。2.固(gu)(gu)(gu)化(hua)期間嚴禁擾(rao)動，環境(jing)溫度(du)宜(yi)在5-35℃。七(qi)、質(zhi)量驗(yan)(yan)收(shou)(shou)1.按5%比例(li)進行拉拔試(shi)驗(yan)(yan)（非破壞檢(jian)測），承載(zai)力需≥設(she)(she)(she)計(ji)(ji)值1.15倍(bei)。2.檢(jian)查(cha)鋼(gang)(gang)(gang)筋(jin)(jin)(jin)外露長度(du)偏差（±10mm）、位(wei)(wei)置(zhi)偏差（±5mm）。注(zhu)(zhu)意(yi)事項：1.鉆(zhan)(zhan)孔(kong)(kong)后(hou)須經(jing)監理(li)驗(yan)(yan)收(shou)(shou)方(fang)可注(zhu)(zhu)膠(jiao)2.雨天停止室外作業(ye)3.廢孔(kong)(kong)需用(yong)(yong)(yong)結(jie)構(gou)膠(jiao)封堵4.植(zhi)(zhi)(zhi)筋(jin)(jin)(jin)后(hou)3天內禁止焊接作業(ye)本流(liu)程(cheng)(cheng)嚴格(ge)遵循《混凝土(tu)結(jie)構(gou)加固(gu)(gu)(gu)設(she)(she)(she)計(ji)(ji)規(gui)范》（GB50367）要(yao)求，重(zhong)點控(kong)制鉆(zhan)(zhan)孔(kong)(kong)質(zhi)量、清(qing)孔(kong)(kong)度(du)及注(zhu)(zhu)膠(jiao)密實度(du)三(san)個(ge)關鍵環節，確(que)(que)保(bao)(bao)植(zhi)(zhi)(zhi)筋(jin)(jin)(jin)錨固(gu)(gu)(gu)性能滿足(zu)設(she)(she)(she)計(ji)(ji)要(yao)求。

現澆樓(lou)(lou)板(ban)植(zhi)(zhi)(zhi)筋(jin)加固(gu)(gu)技術(shu)解析植(zhi)(zhi)(zhi)筋(jin)加固(gu)(gu)是建筑工(gong)(gong)程(cheng)中常(chang)用(yong)的(de)結(jie)構(gou)補強(qiang)技術(shu)，主(zhu)要(yao)用(yong)于(yu)現澆樓(lou)(lou)板(ban)承載(zai)力(li)提升、結(jie)構(gou)缺陷修復(fu)(fu)或功能改(gai)造。該技術(shu)通過在混(hun)凝(ning)土(tu)基(ji)體(ti)植(zhi)(zhi)(zhi)入(ru)鋼(gang)筋(jin)，形(xing)成(cheng)新舊(jiu)結(jie)構(gou)的(de)可(ke)靠連接，有效增(zeng)強(qiang)樓(lou)(lou)板(ban)整體(ti)性(xing)和(he)荷載(zai)能力(li)。技術(shu)原理：利用(yong)結(jie)構(gou)膠(jiao)將鋼(gang)筋(jin)錨固(gu)(gu)于(yu)混(hun)凝(ning)土(tu)基(ji)體(ti)，通過化學(xue)粘結(jie)力(li)和(he)機(ji)械咬(yao)合力(li)共(gong)同作用(yong)實現荷載(zai)傳遞。植(zhi)(zhi)(zhi)入(ru)深度(du)通常(chang)為鋼(gang)筋(jin)直徑的(de)15-20倍，抗拉強(qiang)度(du)可(ke)達鋼(gang)筋(jin)屈服強(qiang)度(du)的(de)90%以上。施工(gong)(gong)流程(cheng)：1.定位(wei)放線(xian)：按設(she)(she)計(ji)要(yao)求確定植(zhi)(zhi)(zhi)筋(jin)位(wei)置(zhi)及間(jian)(jian)距2.鉆(zhan)孔清孔：采(cai)用(yong)沖擊(ji)鉆(zhan)成(cheng)孔后(hou)，用(yong)氣泵清除(chu)孔內粉(fen)塵3.注(zhu)(zhu)膠(jiao)植(zhi)(zhi)(zhi)筋(jin)：注(zhu)(zhu)入(ru)環氧樹(shu)脂(zhi)膠(jiao)后(hou)立即旋入(ru)帶肋(lei)鋼(gang)筋(jin)4.固(gu)(gu)化養護：常(chang)溫下(xia)24小時可(ke)達到設(she)(she)計(ji)強(qiang)度(du)5.節(jie)點(dian)處(chu)理：與新增(zeng)鋼(gang)筋(jin)網焊接形(xing)成(cheng)整體(ti)受(shou)力(li)體(ti)系技術(shu)優勢：①非破壞性(xing)施工(gong)(gong)，避免大(da)(da)面積拆除(chu)②加固(gu)(gu)位(wei)置(zhi)靈(ling)活，適應(ying)復(fu)(fu)雜結(jie)構(gou)③新舊(jiu)結(jie)構(gou)協同工(gong)(gong)作性(xing)能優異④施工(gong)(gong)周期短（單點(dian)施工(gong)(gong)約40分鐘）應(ying)用(yong)場(chang)景：?既有建筑樓(lou)(lou)板(ban)開洞補強(qiang)?使用(yong)功能變更(geng)導致的(de)荷載(zai)增(zeng)加?混(hun)凝(ning)土(tu)強(qiang)度(du)不足(zu)或配筋(jin)缺陷修復(fu)(fu)?歷史建筑保護性(xing)加固(gu)(gu)質(zhi)量要(yao)點(dian)：1.使用(yong)膠(jiao)粘劑，抗拉強(qiang)度(du)≥8.5MPa2.鉆(zhan)孔直徑宜大(da)(da)于(yu)鋼(gang)筋(jin)4-6mm3.清孔后(hou)孔壁殘留粉(fen)塵厚度(du)＜1mm4.固(gu)(gu)化期間(jian)(jian)嚴禁擾動鋼(gang)筋(jin)5.需進行現場(chang)拉拔試驗(yan)驗(yan)證(zheng)錨固(gu)(gu)力(li)該技術(shu)已納入(ru)GB50367《混(hun)凝(ning)土(tu)結(jie)構(gou)加固(gu)(gu)設(she)(she)計(ji)規范》，采(cai)用(yong)植(zhi)(zhi)(zhi)筋(jin)加固(gu)(gu)可(ke)使樓(lou)(lou)板(ban)承載(zai)力(li)提升30%-50%，特別適用(yong)于(yu)不允(yun)許增(zeng)大(da)(da)截面尺寸的(de)改(gai)造項目。施工(gong)(gong)時應(ying)嚴格把控鉆(zhan)孔精(jing)度(du)、清孔質(zhi)量和(he)注(zhu)(zhu)膠(jiao)飽滿度(du)三個關(guan)鍵環節(jie)，確保加固(gu)(gu)效果滿足(zu)設(she)(she)計(ji)要(yao)求。

梁加固(gu)(gu)植(zhi)筋(jin)(jin)(jin)(jin)施(shi)(shi)工(gong)流程(cheng)一、施(shi)(shi)工(gong)準(zhun)(zhun)備(bei)(bei)(bei)1.根據(ju)設計圖紙(zhi)確(que)定植(zhi)筋(jin)(jin)(jin)(jin)位置、規(gui)格(ge)(ge)及(ji)數(shu)量，編(bian)制施(shi)(shi)工(gong)方案。2.準(zhun)(zhun)備(bei)(bei)(bei)植(zhi)筋(jin)(jin)(jin)(jin)膠(jiao)、鋼(gang)(gang)(gang)筋(jin)(jin)(jin)(jin)、電(dian)鉆(zhan)、清(qing)(qing)孔(kong)(kong)(kong)工(gong)具等材料設備(bei)(bei)(bei)，確(que)保(bao)膠(jiao)體在保(bao)質期內(nei)。3.清(qing)(qing)理(li)梁體表面，柱植(zhi)筋(jin)(jin)(jin)(jin)加固(gu)(gu)公司，鑿除松散混凝土，暴(bao)露(lu)加固(gu)(gu)區域。二(er)、定位放線(xian)1.按(an)圖紙(zhi)要(yao)求標(biao)定植(zhi)筋(jin)(jin)(jin)(jin)孔(kong)(kong)(kong)位，復核軸線(xian)及(ji)標(biao)高，避(bi)開(kai)原(yuan)結構(gou)(gou)鋼(gang)(gang)(gang)筋(jin)(jin)(jin)(jin)。2.采(cai)用墨線(xian)或(huo)記號筆標(biao)記鉆(zhan)孔(kong)(kong)(kong)中心點，誤差控制在±5mm內(nei)。三、鉆(zhan)孔(kong)(kong)(kong)1.使用電(dian)鉆(zhan)配(pei)合同(tong)規(gui)格(ge)(ge)鉆(zhan)頭垂直(zhi)鉆(zhan)孔(kong)(kong)(kong)，深(shen)(shen)度(du)(du)需(xu)滿足設計要(yao)求（通常為15d，d為鋼(gang)(gang)(gang)筋(jin)(jin)(jin)(jin)直(zhi)徑(jing)）。2.孔(kong)(kong)(kong)徑(jing)比(bi)鋼(gang)(gang)(gang)筋(jin)(jin)(jin)(jin)大(da)4-6mm（如Φ20鋼(gang)(gang)(gang)筋(jin)(jin)(jin)(jin)鉆(zhan)孔(kong)(kong)(kong)Φ25），孔(kong)(kong)(kong)壁(bi)保(bao)持完整(zheng)無(wu)裂縫。四、清(qing)(qing)孔(kong)(kong)(kong)1.用氣(qi)泵(beng)或(huo)毛刷清(qing)(qing)除孔(kong)(kong)(kong)內(nei)粉塵，再用擦(ca)拭孔(kong)(kong)(kong)壁(bi)，確(que)保(bao)無(wu)油污(wu)及(ji)雜質。2.孔(kong)(kong)(kong)洞清(qing)(qing)理(li)后(hou)(hou)需(xu)及(ji)時(shi)(shi)(shi)封(feng)閉，防止二(er)次污(wu)染。五、注膠(jiao)與植(zhi)筋(jin)(jin)(jin)(jin)1.將(jiang)植(zhi)筋(jin)(jin)(jin)(jin)膠(jiao)注入孔(kong)(kong)(kong)內(nei)至2/3深(shen)(shen)度(du)(du)，膠(jiao)體應飽滿無(wu)氣(qi)泡。2.鋼(gang)(gang)(gang)筋(jin)(jin)(jin)(jin)表面除銹后(hou)(hou)旋轉插(cha)入孔(kong)(kong)(kong)內(nei)，確(que)保(bao)膠(jiao)體溢出，調(diao)整(zheng)至設計外(wai)露(lu)長(chang)(chang)度(du)(du)。六(liu)、固(gu)(gu)化養護1.植(zhi)筋(jin)(jin)(jin)(jin)后(hou)(hou)24小時(shi)(shi)(shi)內(nei)禁(jin)止擾(rao)動，環境溫(wen)度(du)(du)低于(yu)(yu)15℃時(shi)(shi)(shi)延長(chang)(chang)養護時(shi)(shi)(shi)間。2.膠(jiao)體完全固(gu)(gu)化前避(bi)免荷載施(shi)(shi)加，養護時(shi)(shi)(shi)間按(an)產品(pin)說明(ming)書控制。七(qi)、質量檢驗(yan)1.固(gu)(gu)化后(hou)(hou)采(cai)用拉拔試驗(yan)檢測錨固(gu)(gu)力，抽檢比(bi)例不少于(yu)(yu)3%且不少于(yu)(yu)5根。2.檢查(cha)鋼(gang)(gang)(gang)筋(jin)(jin)(jin)(jin)位置、外(wai)露(lu)長(chang)(chang)度(du)(du)及(ji)膠(jiao)體密實度(du)(du)，不合格(ge)(ge)需(xu)返工(gong)處理(li)。注意事項：施(shi)(shi)工(gong)中需(xu)避(bi)開(kai)結構(gou)(gou)薄弱(ruo)部(bu)位，鉆(zhan)孔(kong)(kong)(kong)遇(yu)鋼(gang)(gang)(gang)筋(jin)(jin)(jin)(jin)時(shi)(shi)(shi)調(diao)整(zheng)孔(kong)(kong)(kong)位；植(zhi)筋(jin)(jin)(jin)(jin)膠(jiao)需(xu)嚴格(ge)(ge)按(an)配(pei)比(bi)混合，冬季施(shi)(shi)工(gong)需(xu)采(cai)取保(bao)溫(wen)措施(shi)(shi)。