泡沫混凝(ning)土公路拓寬中的應用

公(gong)(gong)路(lu)工(gong)(gong)(gong)程(cheng)改造的(de)(de)(de)(de)工(gong)(gong)(gong)程(cheng)量(liang)(liang)(liang)較(jiao)大(da)，尤(you)其是在(zai)(zai)一些居(ju)民數量(liang)(liang)(liang)龐大(da)的(de)(de)(de)(de)城市中(zhong)，由于(yu)其整(zheng)個(ge)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)路(lu)段空間狹小，周(zhou)邊行駛(shi)車(che)輛以(yi)(yi)及行人非常(chang)多，對(dui)(dui)整(zheng)個(ge)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)區域(yu)的(de)(de)(de)(de)機械使用(yong)情況(kuang)(kuang)以(yi)(yi)及材料(liao)(liao)運(yun)輸都有較(jiao)高的(de)(de)(de)(de)要(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu)。如果(guo)(guo)要(yao)(yao)(yao)(yao)(yao)想(xiang)實現公(gong)(gong)路(lu)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)中(zhong)zui小變(bian)形量(liang)(liang)(liang)，必須要(yao)(yao)(yao)(yao)(yao)從(cong)(cong)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)技術以(yi)(yi)及材料(liao)(liao)入手進(jin)行分析(xi)，將各個(ge)環節有效(xiao)進(jin)行銜接。由于(yu)泡(pao)沫(mo)(mo)混(hun)凝(ning)土(tu)具有非常(chang)好的(de)(de)(de)(de)自立性，在(zai)(zai)固化(hua)完成(cheng)后(hou)，便(bian)可以(yi)(yi)直接用(yong)于(yu)現場澆(jiao)筑(zhu)(zhu)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，其臨空測(ce)(ce)壓為零，因此其在(zai)(zai)公(gong)(gong)路(lu)擴寬(kuan)(kuan)(kuan)工(gong)(gong)(gong)程(cheng)中(zhong)有著(zhu)非常(chang)重要(yao)(yao)(yao)(yao)(yao)的(de)(de)(de)(de)作用(yong)。公(gong)(gong)路(lu)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)過程(cheng)中(zhong)，在(zai)(zai)對(dui)(dui)路(lu)基(ji)(ji)、路(lu)堤以(yi)(yi)及擋土(tu)進(jin)行施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，這(zhe)些結構都對(dui)(dui)臨空測(ce)(ce)壓有著(zhu)非常(chang)高的(de)(de)(de)(de)要(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu)，而(er)泡(pao)沫(mo)(mo)混(hun)凝(ning)土(tu)的(de)(de)(de)(de)主要(yao)(yao)(yao)(yao)(yao)優(you)勢在(zai)(zai)于(yu)能(neng)夠防止，由于(yu)公(gong)(gong)路(lu)路(lu)基(ji)(ji)變(bian)形而(er)造成(cheng)的(de)(de)(de)(de)沖(chong)(chong)擊力較(jiao)大(da)的(de)(de)(de)(de)情況(kuang)(kuang)，與此同(tong)時(shi)(shi)，安徽(hui)泡(pao)沫(mo)(mo)混(hun)凝(ning)土(tu)，對(dui)(dui)公(gong)(gong)路(lu)周(zhou)邊建(jian)筑(zhu)(zhu)物造成(cheng)zui小的(de)(de)(de)(de)沖(chong)(chong)擊。比如，某道(dao)路(lu)進(jin)行施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)時(shi)(shi)，擴寬(kuan)(kuan)(kuan)寬(kuan)(kuan)(kuan)度為10m，高度為4m，延長線為450m，如果(guo)(guo)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)中(zhong)使用(yong)泡(pao)沫(mo)(mo)混(hun)凝(ning)土(tu)進(jin)行擴寬(kuan)(kuan)(kuan)，能(neng)夠有效(xiao)的(de)(de)(de)(de)提高施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)速度，保證工(gong)(gong)(gong)期的(de)(de)(de)(de)前提下有效(xiao)降低施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)成(cheng)本，從(cong)(cong)而(er)提高整(zheng)個(ge)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)的(de)(de)(de)(de)效(xiao)果(guo)(guo)。具體應用(yong)主要(yao)(yao)(yao)(yao)(yao)有：1)路(lu)基(ji)(ji)開挖(wa)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)時(shi)(shi)，要(yao)(yao)(yao)(yao)(yao)將原路(lu)基(ji)(ji)臺(tai)階(jie)(jie)一次性挖(wa)除，下臺(tai)階(jie)(jie)的(de)(de)(de)(de)高度應該在(zai)(zai)1m左右(you)(you)，上臺(tai)階(jie)(jie)在(zai)(zai)2m左右(you)(you)，兩邊邊坡開挖(wa)在(zai)(zai)2m左右(you)(you)，在(zai)(zai)保證整(zheng)個(ge)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)路(lu)段質量(liang)(liang)(liang)的(de)(de)(de)(de)同(tong)時(shi)(shi)，降低二次挖(wa)掘時(shi)(shi)，造成(cheng)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)材料(liao)(liao)的(de)(de)(de)(de)損害。2)雨天時(shi)(shi)，必須對(dui)(dui)上臺(tai)階(jie)(jie)進(jin)行覆蓋(gai)處理。進(jin)行擴寬(kuan)(kuan)(kuan)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)時(shi)(shi)，通常(chang)使用(yong)車(che)載式或者固定式進(jin)行施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，如果(guo)(guo)道(dao)路(lu)非常(chang)寬(kuan)(kuan)(kuan)，則一般選擇的(de)(de)(de)(de)是車(che)載式，泡(pao)沫(mo)(mo)混(hun)凝(ning)土(tu)外墻保溫板(ban)，才能(neng)夠保證泡(pao)沫(mo)(mo)混(hun)凝(ning)土(tu)能(neng)夠快速施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong);對(dui)(dui)材料(liao)(liao)配合(he)比，必須根(gen)據工(gong)(gong)(gong)程(cheng)的(de)(de)(de)(de)實際要(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu)，從(cong)(cong)澆(jiao)筑(zhu)(zhu)的(de)(de)(de)(de)性能(neng)角(jiao)度出發，不斷優(you)化(hua)材料(liao)(liao)性能(neng)，保證zui終的(de)(de)(de)(de)澆(jiao)筑(zhu)(zhu)效(xiao)果(guo)(guo)符(fu)合(he)實際要(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu)。

泡沫混凝(ning)土現澆輕(qing)鋼鋼網墻體有(you)哪些優點？

節能環保

現場(chang)干作業，可以有效控制施工過程(cheng)中引起的(de)(de)大氣(qi)污(wu)(wu)染(ran)、土(tu)壤(rang)污(wu)(wu)染(ran)、水污(wu)(wu)染(ran)及對現場(chang)周圍環境(jing)的(de)(de)各類影(ying)響(xiang)，并有效減少廢棄物的(de)(de)產生。

自重輕、用材省

結(jie)構材料強度高，厚(hou)度薄(bo)，用鋼量(liang)省（通常低層(ceng)房(fang)屋總(zong)體(ti)用鋼量(liang)在35kg/m2以內(nei)，多層(ceng)建筑用鋼量(liang)在45kg/m2左右），房(fang)屋的整體(ti)自(zi)重輕，僅為傳統(tong)磚混(hun)結(jie)構的1/4左右。結(jie)構重量(liang)輕降低了運輸和吊(diao)裝(zhuang)費用，基礎負載也相應減少，降低了基礎造價。

泡沫混凝土在高速公(gong)路上的運用

陡峭及急轉彎(wan)地(di)段的填筑

在進行公路的(de)路線方案比選時，長期以來(lai)對工(gong)作本身，水(shui)泥(ni)泡沫(mo)混凝(ning)土，如長度、工(gong)程量、投(tou)資等方面(mian)比較(jiao)重視。而對工(gong)程所帶(dai)來(lai)的(de)安全、環保、社(she)會影響等因素(su)重視的(de)不夠，以至不少工(gong)程的(de)安全、環保問(wen)題較(jiao)為突出(chu)。在已建(jian)和待建(jian)的(de)山區(qu)公路中(zhong)，包(bao)括許(xu)多地(di)形(xing)條件復雜的(de)陡峭及急(ji)轉彎地(di)段(duan)，多采(cai)用直接填挖(wa)施工(gong)的(de)處理(li)方法，施工(gong)方法雖然簡(jian)單，但常(chang)伴隨著較(jiao)大(da)的(de)填挖(wa)工(gong)程量，原地(di)形(xing)、地(di)貌的(de)破(po)壞較(jiao)大(da)；邊坡防護難度大(da)，穩定問(wen)題突出(chu)，大(da)雨過后，高邊坡及路堤滑

塌的(de)現(xian)象時有發(fa)生。在這些(xie)特殊(shu)的(de)路(lu)段，泡(pao)沫混凝土生產廠家，如(ru)果適(shi)當地(di)采用泡(pao)沫混凝土進行路(lu)堤的(de)填(tian)筑(圖3)，不但可(ke)減少填(tian)挖工(gong)程(cheng)量及原(yuan)地(di)形、地(di)貌的(de)破壞，消除(chu)工(gong)程(cheng)的(de)安全隱(yin)患，而(er)且(qie)可(ke)縮短(duan)施工(gong)工(gong)期。