為什么修路要用鋼塑土工格柵
原來的(de)(de)(de)(de)(de)(de)(de)城市道(dao)路(lu)大多是(shi)(shi)水(shui)泥(ni)混(hun)凝(ning)土(tu)(tu)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)。隨著使用(yong)(yong)壽(shou)命(ming)(ming)、道(dao)路(lu)交通和車輛(liang)荷載的(de)(de)(de)(de)(de)(de)(de)增(zeng)加(jia)(jia)(jia)，舊(jiu)水(shui)泥(ni)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)結構的(de)(de)(de)(de)(de)(de)(de)損傷越來越嚴(yan)重。如何修補舊(jiu)水(shui)泥(ni)混(hun)凝(ning)土(tu)(tu)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)已成為(wei)亟待解(jie)決(jue)的(de)(de)(de)(de)(de)(de)(de)問題(ti)。對傳統的(de)(de)(de)(de)(de)(de)(de)板式路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)進行(xing)改(gai)造(zao)不僅費(fei)時費(fei)力，而(er)且(qie)有很多人的(de)(de)(de)(de)(de)(de)(de)意(yi)見。瀝(li)青(qing)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)設(she)備具有平整度好、噪音低、粉塵少等優點(dian)。在(zai)舊(jiu)混(hun)凝(ning)土(tu)(tu)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)上(shang)(shang)(shang)鋪設(she)瀝(li)青(qing)加(jia)(jia)(jia)鋪層(ceng)(ceng)(ceng)(ceng)是(shi)(shi)提(ti)高(gao)舊(jiu)混(hun)凝(ning)土(tu)(tu)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)使用(yong)(yong)性能的(de)(de)(de)(de)(de)(de)(de)有效措施(shi)，但(dan)瀝(li)青(qing)加(jia)(jia)(jia)鋪層(ceng)(ceng)(ceng)(ceng)反射裂縫是(shi)(shi)需(xu)要解(jie)決(jue)的(de)(de)(de)(de)(de)(de)(de)主要問題(ti)。反射裂縫本身對覆蓋(gai)層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)性能影響不大，但(dan)環境因素(su)(雨、雪、氧化(hua)、粉塵)的(de)(de)(de)(de)(de)(de)(de)負面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)影響往(wang)往(wang)使裂縫迅速擴展，縮(suo)短覆蓋(gai)層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)使用(yong)(yong)壽(shou)命(ming)(ming)。為(wei)了有效減(jian)緩舊(jiu)水(shui)泥(ni)混(hun)凝(ning)土(tu)(tu)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)裂縫的(de)(de)(de)(de)(de)(de)(de)反射速度或(huo)減(jian)小(xiao)瀝(li)青(qing)加(jia)(jia)(jia)鋪層(ceng)(ceng)(ceng)(ceng)厚(hou)(hou)(hou)度，國內外研究人員進行(xing)了大量的(de)(de)(de)(de)(de)(de)(de)試(shi)驗(yan)，既積累了成功的(de)(de)(de)(de)(de)(de)(de)經驗(yan)，也吸取(qu)了許多失敗(bai)的(de)(de)(de)(de)(de)(de)(de)教訓。為(wei)了防止反射裂縫，國外采(cai)用(yong)(yong)加(jia)(jia)(jia)厚(hou)(hou)(hou)瀝(li)青(qing)加(jia)(jia)(jia)鋪層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)方(fang)法(fa)。但(dan)是(shi)(shi)單純(chun)依靠增(zeng)加(jia)(jia)(jia)鋪層(ceng)(ceng)(ceng)(ceng)厚(hou)(hou)(hou)度有其(qi)缺(que)點(dian):一方(fang)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)，加(jia)(jia)(jia)鋪層(ceng)(ceng)(ceng)(ceng)厚(hou)(hou)(hou)度的(de)(de)(de)(de)(de)(de)(de)增(zeng)加(jia)(jia)(jia)受到街道(dao)高(gao)程的(de)(de)(de)(de)(de)(de)(de)限(xian)(xian)制;而(er)且(qie)，加(jia)(jia)(jia)鋪層(ceng)(ceng)(ceng)(ceng)厚(hou)(hou)(hou)度的(de)(de)(de)(de)(de)(de)(de)大幅度增(zeng)加(jia)(jia)(jia)會增(zeng)加(jia)(jia)(jia)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)成本。此外，夏季(ji)瀝(li)青(qing)混(hun)合(he)料在(zai)高(gao)溫下的(de)(de)(de)(de)(de)(de)(de)徐變很容易導致(zhi)車轍，從而(er)失去(qu)了舊(jiu)水(shui)泥(ni)混(hun)凝(ning)土(tu)(tu)板作為(wei)基(ji)(ji)層(ceng)(ceng)(ceng)(ceng)產生的(de)(de)(de)(de)(de)(de)(de)堅實基(ji)(ji)礎和薄表面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)優勢(shi)。因此，采(cai)用(yong)(yong)加(jia)(jia)(jia)厚(hou)(hou)(hou)瀝(li)青(qing)加(jia)(jia)(jia)鋪層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)(de)(de)(de)方(fang)法(fa)是(shi)(shi)不可(ke)取(qu)的(de)(de)(de)(de)(de)(de)(de)。針對這(zhe)種(zhong)情況，在(zai)查閱大量數據、理論(lun)分(fen)析(xi)和論(lun)證的(de)(de)(de)(de)(de)(de)(de)基(ji)(ji)礎上(shang)(shang)(shang)，決(jue)定在(zai)舊(jiu)水(shui)泥(ni)混(hun)凝(ning)土(tu)(tu)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)上(shang)(shang)(shang)鋪設(she)玻璃(li)(li)纖維(wei)格柵加(jia)(jia)(jia)固層(ceng)(ceng)(ceng)(ceng)，然(ran)后在(zai)其(qi)上(shang)(shang)(shang)鋪上(shang)(shang)(shang)瀝(li)青(qing)混(hun)凝(ning)土(tu)(tu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)層(ceng)(ceng)(ceng)(ceng)。采(cai)用(yong)(yong)這(zhe)種(zhong)方(fang)法(fa)鋪設(she)的(de)(de)(de)(de)(de)(de)(de)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)，可(ke)以防止基(ji)(ji)層(ceng)(ceng)(ceng)(ceng)裂縫的(de)(de)(de)(de)(de)(de)(de)反射，減(jian)少路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)車轍，延長(chang)(chang)路(lu)面(mian)(mian)(mian)(mian)(mian)(mian)(mian)(mian)使用(yong)(yong)壽(shou)命(ming)(ming)。玻璃(li)(li)纖維(wei)格柵具有抗拉(la)強度高(gao)、伸長(chang)(chang)率低、無蠕變、與瀝(li)青(qing)混(hun)合(he)料相(xiang)容性好、理化(hua)性能穩定、耐高(gao)溫、鎖緊性強、極限(xian)(xian)效應強等特點(dian)。其(qi)主要功能是(shi)(shi)均勻傳遞軸向載荷。