鋼波紋管由(you)于其軸(zhou)向波紋(wen)(wen)的存在,使得徑向承載(zai)力大大提高,同時由(you)于其軸(zhou)向波紋(wen)(wen)的存在,使其具(ju)有較(jiao)好的橫向變(bian)形(xing)補償特(te)性,因而具(ju)有較(jiao)好的不均勻沉降變(bian)形(xing)的適應能力。
關于鋼波紋管施工保障如何能做到更好
軟土(tu)(tu)地(di)基的(de)處(chu)(chu)理方案處(chu)(chu)理原則(ze)當涵(han)管處(chu)(chu)于軟土(tu)(tu)地(di)基上時,需對軟土(tu)(tu)路基進行處(chu)(chu)理,涵(han)洞地(di)基處(chu)(chu)理方法同該(gai)路段(duan)的(de)路基處(chu)(chu)理方法,然(ran)后在其上填(tian)一層大于80cm厚的(de)優(you)質砂礫墊層。
處(chu)理(li)措施根據(ju)軟(ruan)基厚(hou)度(du)(du)及(ji)填土(tu)高度(du)(du),確定處(chu)理(li)措施,當(dang)淤(yu)(yu)泥小(xiao)于(yu)4米(mi)(mi)深時,采用(yong)(yong)(yong)(yong)清淤(yu)(yu)拋石(shi)處(chu)理(li)方法,一(yi)(yi)(yi)般(ban)(ban)清淤(yu)(yu)深度(du)(du)為(wei)1.5-2.5米(mi)(mi),拋石(shi)厚(hou)度(du)(du)一(yi)(yi)(yi)般(ban)(ban)為(wei)1.5-2.5m,讓其(qi)穩定后(hou),采用(yong)(yong)(yong)(yong)壓(ya)實(shi)(shi)機械壓(ya)實(shi)(shi),在(zai)(zai)其(qi)鋪(pu)設不小(xiao)于(yu)80厘(li)米(mi)(mi)的(de)碎石(shi)墊(dian)層(ceng)。如果當(dang)淤(yu)(yu)泥4-6米(mi)(mi)深,填土(tu)超過(guo)10米(mi)(mi),采用(yong)(yong)(yong)(yong)清淤(yu)(yu)拋石(shi)處(chu)理(li)方法,一(yi)(yi)(yi)般(ban)(ban)清淤(yu)(yu)深度(du)(du)為(wei)2-4米(mi)(mi),拋石(shi)厚(hou)度(du)(du)一(yi)(yi)(yi)般(ban)(ban)為(wei)2-3m,讓其(qi)穩定后(hou),采用(yong)(yong)(yong)(yong)壓(ya)實(shi)(shi)機械壓(ya)實(shi)(shi),為(wei)保(bao)證基礎整體性(xing),建(jian)議還要在(zai)(zai)80厘(li)米(mi)(mi)墊(dian)層(ceng)中鋪(pu)設兩道(dao)土(tu)工格柵。當(dang)淤(yu)(yu)泥大(da)于(yu)6米(mi)(mi)深時,采用(yong)(yong)(yong)(yong) CFG基樁加固,然后(hou)在(zai)(zai)其(qi)上填一(yi)(yi)(yi)層(ceng)大(da)于(yu)80cm厚(hou)的(de)優質(zhi)砂礫墊(dian)層(ceng),并夯實(shi)(shi)緊密。
工(gong)程開工(gong)前,對(dui)總體工(gong)程進行(xing)質量(liang)策劃及(ji)質量(liang)計劃,對(dui)關鍵(jian)工(gong)序、重(zhong)點(dian)及(ji)難點(dian)進行(xing)預控。做好技術交(jiao)底(di)工(gong)作,使操(cao)作人員明(ming)確(que)施工(gong)方法、操(cao)作要(yao)(yao)點(dian)和質量(liang)標準要(yao)(yao)求。
你知道鋼波紋管是如何進行施工保障的嗎?人員培訓。對特殊工種人員,堅持持證上崗;對未取證的人員進行培訓,經培訓后進行跟蹤考核。波(bo)形鋼(gang)管涵原(yuan)材(cai)(cai)料采購。在(zai)施(shi)工前對供方進(jin)行評(ping)價控 制,選擇合格有(you)信(xin)譽(yu)的(de)供方。對施(shi)工使用的(de)原(yuan)材(cai)(cai)料, 按(an)規定(ding)的(de)頻率(lv)進(jin)行抽撿,不合格的(de)材(cai)(cai)料堅(jian)決不用于 工程施(shi)工。嚴(yan)格控制施(shi)工質量。
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