1.環(huan)剛度高，應用(yong)(yong)范圍(wei)擴大(da)：采用(yong)(yong)三壁包(bao)覆(fu)增強(qiang)(qiang)工藝，管(guan)材波高增加近10%，截面慣性矩增加50%以(yi)上(shang)(shang)，達到可(ke)以(yi)生產(chan)(chan)環(huan)剛度等級(ji)SN16級(ji)以(yi)上(shang)(shang)管(guan)材的技術要(yao)求。產(chan)(chan)品具有強(qiang)(qiang)度高、應用(yong)(yong)范圍(wei)更廣的優勢。

2.接口(kou)強(qiang)度高(gao)，連接更可靠。三層壁(bi)擴口(kou)工藝，提高(gao)了管(guan)材(cai)承口(kou)部位剛度和尺(chi)寸穩(wen)定性(xing)，使(shi)橡(xiang)膠密封圈柔性(xing)連接更加(jia)可靠。

3.降低(di)施(shi)(shi)(shi)工(gong)(gong)難度(du)，提高工(gong)(gong)程(cheng)質量(liang)(liang)(liang)：基于(yu)(yu)“管(guan)土共同作用”的(de)原理，埋地管(guan)材(cai)在(zai)施(shi)(shi)(shi)工(gong)(gong)時(shi)，回(hui)填(tian)質量(liang)(liang)(liang)好壞，直接影響工(gong)(gong)程(cheng)的(de)整體質量(liang)(liang)(liang)。雙(shuang)壁波紋管(guan)由(you)于(yu)(yu)是(shi)波紋狀的(de)外形結構(gou)，回(hui)填(tian)時(shi)，腹部難以填(tian)實，施(shi)(shi)(shi)工(gong)(gong)時(shi)開挖面(mian)積較大，回(hui)填(tian)一般要求為細沙回(hui)填(tian)，以確保工(gong)(gong)程(cheng)質量(liang)(liang)(liang)。但實際應(ying)(ying)用中，由(you)于(yu)(yu)施(shi)(shi)(shi)工(gong)(gong)條件限制和不規范施(shi)(shi)(shi)工(gong)(gong)，回(hui)填(tian)不當造(zao)成(cheng)的(de)壓屈失穩，管(guan)材(cai)塌陷的(de)情況，仍是(shi)塑料管(guan)材(cai)在(zai)應(ying)(ying)用中的(de)主要質量(liang)(liang)(liang)問題。三層壁復合增強管(guan)，由(you)于(yu)(yu)光(guang)滑的(de)管(guan)材(cai)外表(biao)面(mian)，使(shi)得回(hui)填(tian)時(shi)很容易(yi)壓實，工(gong)(gong)程(cheng)質量(liang)(liang)(liang)提高，開挖面(mian)積減小(xiao)，施(shi)(shi)(shi)工(gong)(gong)難度(du)降低(di)。