土工膜连接包括哪些内容?
1.土(tu)(tu)(tu)工(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)连(lian)接(jie)(jie)(jie)包括土(tu)(tu)(tu)工(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)与(yu)垂(chui)直防(fang)渗的连(lian)接(jie)(jie)(jie)、土(tu)(tu)(tu)工(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)自身粘接(jie)(jie)(jie)、土(tu)(tu)(tu)工(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)上部与(yu)堤顶(ding)(ding)(ding)封顶(ding)(ding)(ding)平台(tai)或(huo)(huo)钢筋混凝土(tu)(tu)(tu)防(fang)洪墙的连(lian)接(jie)(jie)(jie)。土(tu)(tu)(tu)工(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)连(lian)接(jie)(jie)(jie)应先进(jin)(jin)行土(tu)(tu)(tu)工(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)与(yu)垂(chui)直防(fang)渗墙的连(lian)接(jie)(jie)(jie)，再进(jin)(jin)行土(tu)(tu)(tu)工(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)上部与(yu)堤顶(ding)(ding)(ding)封顶(ding)(ding)(ding)平台(tai)或(huo)(huo)钢筋混凝土(tu)(tu)(tu)防(fang)洪墙的连(lian)接(jie)(jie)(jie)。已施工(gong)(gong)(gong)(gong)好(hao)的土(tu)(tu)(tu)工(gong)(gong)(gong)(gong)膜(mo)(mo)(mo)(mo)接(jie)(jie)(jie)头应妥善保(bao)护(hu)，避(bi)免人(ren)为因(yin)素机(ji)械破坏(huai)。
2.土(tu)工(gong)膜底部(bu)连(lian)接(jie)(jie)。首先，土(tu)工(gong)膜底部(bu)与(yu)垂(chui)直(zhi)防(fang)渗(shen)墙(qiang)相接(jie)(jie)，施(shi)工(gong)单(dan)位(wei)应待此段墙(qiang)体(ti)施(shi)工(gong)完毕并经(jing)理人验(yan)收批准(zhun)后方能进行(xing)接(jie)(jie)头(tou)处理施(shi)工(gong)。然后，土(tu)工(gong)膜底部(bu)与(yu)墙(qiang)体(ti)的(de)嵌固连(lian)接(jie)(jie)时(shi)，在(zai)防(fang)渗(shen)墙(qiang)墙(qiang)体(ti)附近的(de)土(tu)工(gong)膜应折叠10cm以(yi)防(fang)地基不均(jun)匀(yun)变形的(de)影响。最后，土(tu)工(gong)膜伸缩节(jie)底部(bu)连(lian)接(jie)(jie)时(shi)，施(shi)工(gong)单(dan)位(wei)在(zai)基接(jie)(jie)头(tou)边界(jie)上另加宽20cm土(tu)工(gong)膜条带加强结构(gou)，以(yi)防(fang)漏水。
3.自(zi)(zi)(zi)身粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)。首(shou)先(xian)，土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)自(zi)(zi)(zi)身粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)应(ying)(ying)(ying)经现场(chang)试(shi)验检(jian)验。粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)后(hou)的(de)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)强度应(ying)(ying)(ying)降低，粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)到剂(ji)遇水浸泡后(hou)粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)强度不(bu)应(ying)(ying)(ying)低于(yu)(yu)设计强度。检(jian)验合格(ge)，并(bing)(bing)报经监理(li)工(gong)(gong)(gong)(gong)(gong)(gong)程师批准(zhun)后(hou)，才能(neng)(neng)进行施工(gong)(gong)(gong)(gong)(gong)(gong)。其(qi)次，土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)粘(zhan)(zhan)(zhan)施工(gong)(gong)(gong)(gong)(gong)(gong)前，应(ying)(ying)(ying)检(jian)查是否有破损，发(fa)现破损应(ying)(ying)(ying)立即修缮。应(ying)(ying)(ying)准(zhun)备好(hao)(hao)刨光木板(ban)，粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)施工(gong)(gong)(gong)(gong)(gong)(gong)时(shi)，将(jiang)木板(ban)预(yu)(yu)垫(dian)在土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)下部，摊(tan)平膜(mo)(mo)体，在接(jie)(jie)(jie)口(kou)处用(yong)电(dian)吹风去灰法后(hou)涂抹粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)剂(ji)，根(gen)据粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)剂(ji)的(de)性能(neng)(neng)要求进行粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)，并(bing)(bing)不(bu)断(duan)用(yong)棉纱擦压。土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)处身粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)缝宽(kuan)度一般为10cm，并(bing)(bing)应(ying)(ying)(ying)保(bao)证(zheng)最(zui)小(xiao)粘(zhan)(zhan)(zhan)宽(kuan)度不(bu)小(xiao)于(yu)(yu)8cm。再(zai)次，土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)自(zi)(zi)(zi)身粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)应(ying)(ying)(ying)先(xian)在室内进行，拼(pin)接(jie)(jie)(jie)车间(jian)应(ying)(ying)(ying)有预(yu)(yu)棚防雨(yu)，自(zi)(zi)(zi)然(ran)通风，易于(yu)(yu)粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)剂(ji)等有机溶剂(ji)的(de)挥(hui)发(fa)，并(bing)(bing)应(ying)(ying)(ying)加强职工(gong)(gong)(gong)(gong)(gong)(gong)劳保(bao)措施。最(zui)后(hou)，现场(chang)粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)时(shi)，承包(bao)人应(ying)(ying)(ying)根(gen)据不(bu)同(tong)气候条件，采取不(bu)同(tong)的(de)施工(gong)(gong)(gong)(gong)(gong)(gong)措施，晴天(tian)(tian)需勤(qin)揩(kai)察(cha)，防止尘(chen)土(tu)和杂(za)物(wu)落到粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)面(mian)上；阴雨(yu)天(tian)(tian)务应(ying)(ying)(ying)架雨(yu)篷，必须(xu)(xu)保(bao)证(zheng)粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)面(mian)干(gan)燥和粘(zhan)(zhan)(zhan)胶干(gan)后(hou)才粘(zhan)(zhan)(zhan)（或按厂方规(gui)定(ding)条件及要求粘(zhan)(zhan)(zhan)接(jie)(jie)(jie)），已粘(zhan)(zhan)(zhan)好(hao)(hao)的(de)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)必须(xu)(xu)用(yong)雨(yu)而盖好(hao)(hao)，防止受损，已拼(pin)接(jie)(jie)(jie)好(hao)(hao)的(de)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)的(de)预(yu)(yu)留边(bian)接(jie)(jie)(jie)口(kou)，应(ying)(ying)(ying)用(yong)薄膜(mo)(mo)保(bao)护好(hao)(hao)，防止接(jie)(jie)(jie)口(kou)土(tu)工(gong)(gong)(gong)(gong)(gong)(gong)膜(mo)(mo)被(bei)污染。
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