施工方法
1、施工準備
1)土(tu)工(gong)膜(mo)材料(liao)質量檢(jian)測(ce)(ce)本(ben)工(gong)程(cheng)所(suo)用土(tu)工(gong)膜(mo)為(wei)兩布一膜(mo)土(tu)工(gong)膜(mo),使(shi)用前委托省(sheng)水利工(gong)程(cheng)質量檢(jian)測(ce)(ce)中心站對產品(pin)的各項(xiang)技術指標進行(xing)檢(jian)測(ce)(ce),各項(xiang)指標均(jun)符合標準規定(ding)和(he)設(she)計要求。
2)堤坡的清理(li)、平整(zheng)場地,清除一切尖角雜物,欠(qian)坡回填夯實、富坡削坡挖平后(hou)經監理(li)驗(yan)收合格,為(wei)土工膜鋪設提供(gong)工作面(mian)。
3)土工(gong)膜(mo)場(chang)內拼接為了(le)施工(gong)方便,保證(zheng)拼接質(zhi)量,土工(gong)膜(mo)應盡量采(cai)用寬幅(fu),減少(shao)現場(chang)拼接量,施工(gong)前應根據土工(gong)膜(mo)幅(fu)寬、現場(chang)長度需要(yao),在(zai)單位內剪裁,并(bing)拼接成合(he)符要(yao)求(qiu)尺寸的塊體,卷在(zai)鋼管上,人工(gong)搬運到工(gong)作面鋪設。
2、土工(gong)膜的鋪設
1)土(tu)(tu)工膜的鋪(pu)(pu)設(she)方法 土(tu)(tu)工膜鋪(pu)(pu)設(she)分渠底鋪(pu)(pu)設(she)、坡(po)面鋪(pu)(pu)設(she)兩(liang)個部(bu)分。鋪(pu)(pu)設(she)方法:沿渠道軸(zhou)線(xian)方向水平滾鋪(pu)(pu)。坡(po)面鋪(pu)(pu)設(she)在坡(po)面驗收(shou)合格后,從(cong)順坡(po)面軸(zhou)線(xian)方向滾鋪(pu)(pu),與渠底的土(tu)(tu)工膜連接采(cai)用丁字形(xing)連接。
2)土工膜的鋪(pu)設(she)技術要求
鋪設(she)應(ying)(ying)在干燥和暖天(tian)氣進行(xing),為了便(bian)于(yu)拼(pin)接,防止(zhi)應(ying)(ying)力集(ji)中(zhong),土(tu)工(gong)(gong)膜(mo)鋪設(she)采用波浪形松馳方式,富余度約為1.5%,攤(tan)開后及時拉(la)平(ping),拉(la)開,要(yao)求土(tu)工(gong)(gong)膜(mo)與(yu)坡(po)面(mian)吻合平(ping)整,無突(tu)起褶皺(zhou),施工(gong)(gong)人員(yuan)應(ying)(ying)穿平(ping)底布鞋(xie)或軟膠(jiao)鞋(xie),嚴禁穿釘鞋(xie),以免踩壞(huai)土(tu)工(gong)(gong)膜(mo),施工(gong)(gong)時如發現土(tu)工(gong)(gong)膜(mo)損壞(huai),應(ying)(ying)及時修補。
3、土工(gong)(gong)(gong)膜(mo)的拼(pin)(pin)(pin)接(jie)(jie) 1)本項目采(cai)用兩布(bu)一膜(mo)土工(gong)(gong)(gong)膜(mo),焊接(jie)(jie)采(cai)用熱(re)熔焊法施(shi)工(gong)(gong)(gong),拼(pin)(pin)(pin)接(jie)(jie)包括土工(gong)(gong)(gong)布(bu)的縫(feng)接(jie)(jie)、土工(gong)(gong)(gong)膜(mo)的焊接(jie)(jie),為了(le)確保焊接(jie)(jie)質量(liang)(liang),焊接(jie)(jie)應盡量(liang)(liang)在廠內進行,但為了(le)施(shi)工(gong)(gong)(gong)方便(bian),土工(gong)(gong)(gong)膜(mo)幅寬(kuan)又不應太寬(kuan),必須在施(shi)工(gong)(gong)(gong)現(xian)場拼(pin)(pin)(pin)接(jie)(jie)。
2)土(tu)(tu)(tu)工(gong)膜(mo)(mo)(mo)焊接質(zhi)量的(de)好壞是(shi)土(tu)(tu)(tu)工(gong)膜(mo)(mo)(mo)防滲(shen)性能成敗的(de)關鍵,所(suo)以務必做好土(tu)(tu)(tu)工(gong)膜(mo)(mo)(mo)的(de)焊接,確保(bao)焊接質(zhi)量,因此,土(tu)(tu)(tu)工(gong)膜(mo)(mo)(mo)焊接應由(you)生產廠家(jia)派專(zhuan)業技術人員到(dao)現場操作,指導,培(pei)訓,采用土(tu)(tu)(tu)工(gong)膜(mo)(mo)(mo)專(zhuan)用焊接設備進行。本工(gong)程(cheng)土(tu)(tu)(tu)工(gong)膜(mo)(mo)(mo)焊接采用ZPR-210V型(xing)熱合土(tu)(tu)(tu)工(gong)膜(mo)(mo)(mo)焊接機(ji),土(tu)(tu)(tu)工(gong)布(bu)采用手(shou)提式封包機(ji)縫接。
3)本項目(mu)兩(liang)布一膜(mo)土工膜(mo)焊接流程(cheng):
4)焊接工藝:前面(mian)一幅土工膜(mo)鋪好(hao)后,將需焊接的邊翻疊(約60cm寬)
防滲膜生(sheng)產廠家(jia)路易達新材料 歡迎您咨詢洽談
上一條:如何防止垃圾填埋場防滲膜滲漏? | 下一條:垃圾填埋場用高密度聚乙烯土工膜 |