關注防(fang)(fang)(fang)(fang)(fang)水(shui)(shui)(shui)(shui)(shui)毯特(te)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)測試(shi)(shi)(shi) 關注防(fang)(fang)(fang)(fang)(fang)滲(shen)事(shi)業(ye)的(de)(de)(de)(de)(de)(de)(de)發展與(yu)完善(shan),據了(le)(le)解,近年來(lai)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)防(fang)(fang)(fang)(fang)(fang)滲(shen)毯(Geosynthetic Clay liner,簡稱GCL)被越(yue)(yue)(yue)來(lai)越(yue)(yue)(yue)多地應(ying)用到(dao)(dao)(dao)各種防(fang)(fang)(fang)(fang)(fang)滲(shen)工程之中(zhong),它的(de)(de)(de)(de)(de)(de)(de)防(fang)(fang)(fang)(fang)(fang)滲(shen)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)越(yue)(yue)(yue)來(lai)越(yue)(yue)(yue)引起(qi)了(le)(le)人(ren)們的(de)(de)(de)(de)(de)(de)(de)重視,同(tong)(tong)時(shi)(shi)對(dui)(dui)室內試(shi)(shi)(shi)驗(yan)研究和機理分析(xi)也(ye)提出了(le)(le)越(yue)(yue)(yue)來(lai)越(yue)(yue)(yue)高的(de)(de)(de)(de)(de)(de)(de)要求。本(ben)文主要以(yi)河套灌區(qu)渠道防(fang)(fang)(fang)(fang)(fang)滲(shen)用GCL為研究對(dui)(dui)象,對(dui)(dui)影響(xiang)(xiang)(xiang)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)持水(shui)(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)以(yi)及(ji)GCL的(de)(de)(de)(de)(de)(de)(de)防(fang)(fang)(fang)(fang)(fang)滲(shen)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)的(de)(de)(de)(de)(de)(de)(de)因素進行了(le)(le)室內試(shi)(shi)(shi)驗(yan)以(yi)及(ji)試(shi)(shi)(shi)驗(yan)結(jie)果的(de)(de)(de)(de)(de)(de)(de)機理分析(xi),得到(dao)(dao)(dao)一些有價(jia)值的(de)(de)(de)(de)(de)(de)(de)結(jie)論(lun)和成果:(1)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)試(shi)(shi)(shi)樣(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)持水(shui)(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)(宏觀上(shang)反映為濾失(shi)(shi)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)大(da)(da)(da)(da)(da)小(xiao))隨著(zhu)溶(rong)液(ye)(ye)濃(nong)度(du)(du)的(de)(de)(de)(de)(de)(de)(de)增(zeng)(zeng)大(da)(da)(da)(da)(da)而(er)逐漸(jian)變差(cha)(cha)(cha),膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)的(de)(de)(de)(de)(de)(de)(de)持水(shui)(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)與(yu)可(ke)交(jiao)換(huan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)Na+、Ca2+的(de)(de)(de)(de)(de)(de)(de)含(han)量(liang)(liang)(liang)有關,可(ke)交(jiao)換(huan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)Na+含(han)量(liang)(liang)(liang)越(yue)(yue)(yue)大(da)(da)(da)(da)(da),膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)的(de)(de)(de)(de)(de)(de)(de)持水(shui)(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)越(yue)(yue)(yue)好;可(ke)交(jiao)換(huan)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)Ca2+含(han)量(liang)(liang)(liang)越(yue)(yue)(yue)大(da)(da)(da)(da)(da),膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)的(de)(de)(de)(de)(de)(de)(de)持水(shui)(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng)越(yue)(yue)(yue)差(cha)(cha)(cha);(2)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)的(de)(de)(de)(de)(de)(de)(de)自(zi)(zi)由(you)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)量(liang)(liang)(liang)同(tong)(tong)時(shi)(shi)受到(dao)(dao)(dao)陽離子(zi)濃(nong)度(du)(du)和化合(he)價(jia)的(de)(de)(de)(de)(de)(de)(de)共(gong)同(tong)(tong)影響(xiang)(xiang)(xiang),在(zai)(zai)溶(rong)液(ye)(ye)濃(nong)度(du)(du)較(jiao)(jiao)低(di)時(shi)(shi),高價(jia)離子(zi)對(dui)(dui)自(zi)(zi)由(you)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)影響(xiang)(xiang)(xiang)比(bi)(bi)較(jiao)(jiao)明顯(xian)(xian);溶(rong)液(ye)(ye)濃(nong)度(du)(du)較(jiao)(jiao)高時(shi)(shi),低(di)價(jia)離子(zi)對(dui)(dui)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)的(de)(de)(de)(de)(de)(de)(de)自(zi)(zi)由(you)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)影響(xiang)(xiang)(xiang)比(bi)(bi)較(jiao)(jiao)明顯(xian)(xian);(3)不(bu)同(tong)(tong)陽離子(zi)水(shui)(shui)(shui)(shui)(shui)溶(rong)液(ye)(ye)對(dui)(dui)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)持水(shui)(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)影響(xiang)(xiang)(xiang)不(bu)同(tong)(tong)。防(fang)(fang)(fang)(fang)(fang)水(shui)(shui)(shui)(shui)(shui)毯專家解析(xi)相(xiang)(xiang)同(tong)(tong)物質的(de)(de)(de)(de)(de)(de)(de)量(liang)(liang)(liang)濃(nong)度(du)(du)下,三(san)價(jia)的(de)(de)(de)(de)(de)(de)(de)Fe3+對(dui)(dui)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)濾失(shi)(shi)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)影響(xiang)(xiang)(xiang)最(zui)大(da)(da)(da)(da)(da),一價(jia)Na+對(dui)(dui)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)濾失(shi)(shi)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)影響(xiang)(xiang)(xiang)最(zui)小(xiao);(4)陽離子(zi)化合(he)價(jia)越(yue)(yue)(yue)高對(dui)(dui)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)的(de)(de)(de)(de)(de)(de)(de)耐(nai)久(jiu)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)影響(xiang)(xiang)(xiang)越(yue)(yue)(yue)大(da)(da)(da)(da)(da)。膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)試(shi)(shi)(shi)樣(yang)(yang)(yang)在(zai)(zai)Na+溶(rong)液(ye)(ye)中(zhong)耐(nai)久(jiu)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)最(zui)好,溶(rong)液(ye)(ye)中(zhong)浸泡30天(tian)后(hou)的(de)(de)(de)(de)(de)(de)(de)自(zi)(zi)由(you)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)度(du)(du)從29.2mL/2g減(jian)少(shao)到(dao)(dao)(dao)27.4mL/2g,而(er)在(zai)(zai)Fe3+溶(rong)液(ye)(ye)中(zhong)浸泡后(hou)耐(nai)久(jiu)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)最(zui)差(cha)(cha)(cha),溶(rong)液(ye)(ye)中(zhong)浸泡30天(tian)后(hou)的(de)(de)(de)(de)(de)(de)(de)自(zi)(zi)由(you)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)度(du)(du)從29.2mL/2g減(jian)少(shao)到(dao)(dao)(dao)20.0mL/2g;(5)當(dang)(dang)滲(shen)透(tou)壓力由(you)100cm增(zeng)(zeng)大(da)(da)(da)(da)(da)到(dao)(dao)(dao)300cm水(shui)(shui)(shui)(shui)(shui)頭時(shi)(shi),1#、2#、3#試(shi)(shi)(shi)樣(yang)(yang)(yang)皆有顯(xian)(xian)著(zhu)差(cha)(cha)(cha)異。差(cha)(cha)(cha)異最(zui)大(da)(da)(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)3#試(shi)(shi)(shi)樣(yang)(yang)(yang)滲(shen)透(tou)系數增(zeng)(zeng)加了(le)(le)23.5%,差(cha)(cha)(cha)異最(zui)小(xiao)的(de)(de)(de)(de)(de)(de)(de)4#試(shi)(shi)(shi)樣(yang)(yang)(yang)增(zeng)(zeng)加了(le)(le)9.7%;(6)當(dang)(dang)溶(rong)液(ye)(ye)的(de)(de)(de)(de)(de)(de)(de)礦化度(du)(du)增(zeng)(zeng)大(da)(da)(da)(da)(da)到(dao)(dao)(dao)3g/L的(de)(de)(de)(de)(de)(de)(de)時(shi)(shi)候,3種GCL試(shi)(shi)(shi)樣(yang)(yang)(yang)的(de)(de)(de)(de)(de)(de)(de)滲(shen)透(tou)率(lv)相(xiang)(xiang)比(bi)(bi)于(yu)對(dui)(dui)照(蒸餾水(shui)(shui)(shui)(shui)(shui))都增(zeng)(zeng)加了(le)(le)一個數量(liang)(liang)(liang)級(ji),只有4#試(shi)(shi)(shi)樣(yang)(yang)(yang)與(yu)對(dui)(dui)照處于(yu)同(tong)(tong)一數量(liang)(liang)(liang)級(ji)。其(qi)中(zhong)增(zeng)(zeng)幅比(bi)(bi)例最(zui)大(da)(da)(da)(da)(da)的(de)(de)(de)(de)(de)(de)(de)試(shi)(shi)(shi)樣(yang)(yang)(yang)3的(de)(de)(de)(de)(de)(de)(de)滲(shen)透(tou)率(lv)相(xiang)(xiang)比(bi)(bi)于(yu)對(dui)(dui)照增(zeng)(zeng)加了(le)(le)5.6倍(bei),增(zeng)(zeng)幅比(bi)(bi)例最(zui)小(xiao)的(de)(de)(de)(de)(de)(de)(de)試(shi)(shi)(shi)樣(yang)(yang)(yang)4的(de)(de)(de)(de)(de)(de)(de)滲(shen)透(tou)率(lv)相(xiang)(xiang)比(bi)(bi)于(yu)對(dui)(dui)照增(zeng)(zeng)加了(le)(le)2.0倍(bei);(7)達(da)到(dao)(dao)(dao)滲(shen)流穩定后(hou)的(de)(de)(de)(de)(de)(de)(de)滲(shen)透(tou)系數與(yu)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)的(de)(de)(de)(de)(de)(de)(de)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)度(du)(du)和濾失(shi)(shi)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)冪(mi)函數基(ji)本(ben)上(shang)呈線(xian)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)關系。滲(shen)透(tou)系數隨膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)脹(zhang)(zhang)度(du)(du)的(de)(de)(de)(de)(de)(de)(de)增(zeng)(zeng)大(da)(da)(da)(da)(da)而(er)減(jian)小(xiao),隨著(zhu)膨(peng)(peng)(peng)(peng)(peng)(peng)(peng)(peng)潤(run)(run)(run)(run)土(tu)(tu)(tu)(tu)(tu)(tu)濾失(shi)(shi)量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)增(zeng)(zeng)大(da)(da)(da)(da)(da)而(er)增(zeng)(zeng)大(da)(da)(da)(da)(da)。關注反調節水(shui)(shui)(shui)(shui)(shui)庫長絲土(tu)(tu)(tu)(tu)(tu)(tu)工布相(xiang)(xiang)關資訊:干濕與(yu)凍融條(tiao)件下防(fang)(fang)(fang)(fang)(fang)水(shui)(shui)(shui)(shui)(shui)毯的(de)(de)(de)(de)(de)(de)(de)防(fang)(fang)(fang)(fang)(fang)水(shui)(shui)(shui)(shui)(shui)性(xing)(xing)(xing)(xing)(xing)(xing)(xing)能(neng) ?:不(bu)同(tong)(tong)庫區(qu)水(shui)(shui)(shui)(shui)(shui)位有效應(ying)力分析(xi)