長春檢查井地(di)基與基礎施工建議井(jing)底座的磚、石等應(ying)清(qing)除,成品雨水檢查井(jing),沿管(guan)道方向及沿管(guan)道垂直方向不小于檢查井(jing)直徑400mm的基礎尺寸用中粗砂鋪(pu)墊、攤平(ping)、夯實,當井(jing)底座被水浸泡,應(ying)將水排除,清(qing)除被浸泡的土(tu)層。
建議用中粗砂(sha)換填(tian)并夯實(shi),復核井(jing)(jing)(jing)底(di)(di)座(zuo)編號、規(gui)格、接管直徑,混凝土檢查井(jing)(jing)(jing)廠家(jia),井(jing)(jing)(jing)底(di)(di)座(zuo)安裝(zhuang)中心定(ding)位后,將檢查井(jing)(jing)(jing)的井(jing)(jing)(jing)底(di)(di)座(zuo)安置(zhi)于井(jing)(jing)(jing)底(di)(di)坑基礎上。并調(diao)整(zheng)好井(jing)(jing)(jing)底(di)(di)座(zuo)標(biao)高和接管位置(zhi)。
工(gong)(gong)序(xu)為(wei):井(jing)→管(guan)(guan)(guan)→井(jing)→管(guan)(guan)(guan)。 檢查井(jing)的安(an)(an)裝應先從接戶管(guan)(guan)(guan)上段(duan)開始安(an)(an),以井(jing)-管(guan)(guan)(guan)-井(jing)-管(guan)(guan)(guan)順序(xu)依(yi)次進(jin)行安(an)(an)裝,并逐漸向下延(yan)伸(shen),當變(bian)徑(jing)(jing)的時候(hou),如果匯入管(guan)(guan)(guan)徑(jing)(jing)小于井(jing)座接口(kou)管(guan)(guan)(guan)徑(jing)(jing),應采(cai)取管(guan)(guan)(guan)頂平接的方式(shi);如果井(jing)座排(pai)出管(guan)(guan)(guan)接口(kou)大于下游管(guan)(guan)(guan)道徑(jing)(jing),就(jiu)采(cai)取管(guan)(guan)(guan)內底平接的方式(shi)。 安(an)(an)裝附加(jia)接頭(tou)時,應根據井(jing)筒尺寸和連(lian)接管(guan)(guan)(guan)道直徑(jing)(jing)來進(jin)行安(an)(an)裝前的測量工(gong)(gong)作,并且采(cai)用專用工(gong)(gong)具在井(jing)壁上開孔,注意安(an)(an)裝附加(jia)接頭(tou)不(bu)得倒坡。
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