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機織土工布

更新:2016/10/14 18:26:24      點擊:
機織土工布

機(ji)織(zhi)土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)又叫高強(qiang)(qiang)有(you)紡土(tu)(tu)(tu)工(gong)(gong)(gong)織(zhi)物(wu),有(you)紡土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)是由至少(shao)兩組平行的(de)紗(sha)線(或(huo)扁絲)組成,一(yi)組沿織(zhi)機(ji)的(de)縱(織(zhi)物(wu)行進的(de)方向)稱經(jing)(jing)紗(sha),另一(yi)組橫向布(bu)置稱為緯紗(sha)。用(yong)(yong)不(bu)(bu)同(tong)的(de)編制(zhi)編織(zhi)設備和工(gong)(gong)(gong)藝將(jiang)經(jing)(jing)紗(sha)與緯紗(sha)交織(zhi)在一(yi)起織(zhi)成布(bu)狀,可根據不(bu)(bu)同(tong)的(de)使用(yong)(yong)范圍(wei)編織(zhi)成不(bu)(bu)同(tong)的(de)厚度(du)與密實(shi)(shi)度(du),一(yi)般(ban)(ban)有(you)紡土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)較薄縱橫向都具(ju)有(you)相當強(qiang)(qiang)的(de)抗拉(la)強(qiang)(qiang)度(du)(經(jing)(jing)度(du)大(da)(da)于(yu)緯度(du)),具(ju)有(you)很好的(de)穩定性能(neng)(neng)(neng)。有(you)紡土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)根據編織(zhi)工(gong)(gong)(gong)藝和使用(yong)(yong)經(jing)(jing)緯的(de)不(bu)(bu)同(tong)分為加筋土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)和不(bu)(bu)加筋土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)兩大(da)(da)類,加筋土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)的(de)經(jing)(jing)向抗拉(la)強(qiang)(qiang)度(du)遠遠大(da)(da)于(yu)普通土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)。有(you)紡土(tu)(tu)(tu)工(gong)(gong)(gong)布(bu)一(yi)般(ban)(ban)實(shi)(shi)際應(ying)用(yong)(yong)與土(tu)(tu)(tu)工(gong)(gong)(gong)工(gong)(gong)(gong)程項目(mu)的(de)加筋增強(qiang)(qiang),主(zhu)要功能(neng)(neng)(neng)是加固增強(qiang)(qiang),具(ju)有(you)平面(mian)隔(ge)離與保護(hu)功能(neng)(neng)(neng),不(bu)(bu)具(ju)備平面(mian)排(pai)水功能(neng)(neng)(neng)可根據具(ju)體的(de)使用(yong)(yong)目(mu)的(de)選用(yong)(yong)。

(1)作擋土墻回填中的加筋,或(huo)(huo)用于(yu)錨固擋土墻的面(mian)板。修筑包裹式擋土墻或(huo)(huo)橋臺。

(2)加固柔(rou)性路面,修(xiu)補道路上的裂(lie)縫,防止路面反射裂(lie)縫。

(3)增加碎石邊(bian)坡(po)及加筋(jin)土的穩定(ding)性,防止水土流失(shi)和低溫時土體的凍害。

(4)路道(dao)碴與路基之(zhi)(zhi)間的隔(ge)離(li)層(ceng),或路基與軟基之(zhi)(zhi)間的隔(ge)離(li)層(ceng)。

(5)人(ren)工填土(tu)、堆石或材料場(chang)與(yu)地(di)基的隔離層(ceng),不同凍土(tu)層(ceng)之間的隔離,反(fan)濾和(he)加固作用。

(6)儲灰壩(ba)或尾(wei)礦壩(ba)的(de)(de)初期(qi)上游(you)壩(ba)面(mian)的(de)(de)濾層(ceng),擋土(tu)墻回填土(tu)中排水系統的(de)(de)濾層(ceng)。

(7)排水暗管周邊(bian)或(huo)碎石(shi)排水暗溝周邊(bian)的濾層。

(8)水(shui)利工程中水(shui)井、減壓(ya)井或斜(xie)壓(ya)管的濾層。

(9)公路(lu)(lu)、機(ji)場、鐵路(lu)(lu)道渣和人工堆(dui)石(shi)等與地基之間的土工織物的隔離(li)層(ceng)。

(10)土(tu)壩(ba)內部垂直或水平排水,埋(mai)入土(tu)體中(zhong)消散空隙水壓(ya)力(li)。

(11)土(tu)(tu)壩或(huo)土(tu)(tu)堤中的防滲土(tu)(tu)工膜后(hou)面或(huo)混凝土(tu)(tu)護面下部的排水(shui)。

(12)排除隧洞周邊(bian)滲(shen)水,減(jian)輕襯砌所承受的外水壓(ya)力及各建筑(zhu)物周圍(wei)滲(shen)水。

(13)人工(gong)填(tian)土地基運動場地基的排水(shui)。

(14)公路(包括(kuo)臨(lin)時道路)鐵路、堤(di)岸、土(tu)石壩、機場(chang)、運動場(chang)等(deng)工程(cheng)中用以加強軟弱(ruo)地(di)

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