斜井井筒的傾角從(cong)幾(ji)度到幾(ji)十度不等，所以其施(shi)工(gong)方法、施(shi)工(gong)工(gong)藝(yi)和(he)施(shi)工(gong)設備介于立(li)井和(he)平巷之間。     

1、 斜井井頸施工特點    

 斜井(jing)井(jing)頸(jing)施工(gong)的(de)方法，依水(shui)文地質條件確認。當在山岳地帶開鑿時，因為表(biao)土很薄或僅(jin)有巖石(shi)風化帶，則井(jing)頸(jing)施工(gong)比較簡單，只需將井(jing)口的(de)表(biao)土和風化石(shi)整理干凈后用(yong)鉆爆法掘進(jin)，以暫時支(zhi)護維護施工(gong)安全。待掘進(jin)到井(jing)頸(jing)深(shen)度后再由下(xia)而(er)上砌(qi)碹。斜井(jing)的(de)門(men)臉有必要以砼或鞏固(gu)料石(shi)砌(qi)筑(zhu)。     

當斜井(jing)口坐落平原地(di)區或表(biao)土(tu)層(ceng)較(jiao)厚時(shi)(shi)，一般選用(yong)明(ming)槽開(kai)挖的方法(fa)，將井(jing)頸段(duan)必定深度(du)的表(biao)土(tu)挖出，使(shi)井(jing)口呈坑狀，待明(ming)硐砌完(wan)后做好防水后回填土(tu)并夯實(shi)。     當表(biao)土(tu)層(ceng)土(tu)質密實(shi)、鞏(gong)固、涌水不大，井(jing)筒掘進寬(kuan)度(du)小于(yu)5m時(shi)(shi)，可選用(yong)全段(duan)面一次掘進，金屬拱形支架暫時(shi)(shi)支護，段(duan)高取2-4m，斷面較(jiao)大時(shi)(shi)，一次掘進有困難，可選用(yong)兩邊導硐施工法(fa)。    

2、 斜井基巖段施工的特點    

 堅持(chi)斜(xie)(xie)井(jing)快速施(shi)工(gong)的根(gen)本措(cuo)施(shi)是：表土段選(xuan)(xuan)(xuan)用(yong)(yong)短(duan)段掘(jue)(jue)砌；基(ji)巖(yan)段選(xuan)(xuan)(xuan)用(yong)(yong)掘(jue)(jue)支(zhi)平(ping)行作(zuo)業；鉆(zhan)(zhan)爆(bao)作(zuo)業選(xuan)(xuan)(xuan)用(yong)(yong)激光定向，多臺風鉆(zhan)(zhan)鑿巖(yan)、全(quan)斷面一(yi)次深孔(kong)光爆(bao)；排(pai)矸(gan)(gan)選(xuan)(xuan)(xuan)用(yong)(yong)大容積耙(pa)斗(dou)裝(zhuang)巖(yan)機裝(zhuang)巖(yan)，大型斜(xie)(xie)井(jing)箕斗(dou)進步(bu)；支(zhi)護(hu)選(xuan)(xuan)(xuan)用(yong)(yong)錨網噴(pen)支(zhi)護(hu)；排(pai)水選(xuan)(xuan)(xuan)用(yong)(yong)噴(pen)射泵(beng)或潛水泵(beng)排(pai)水。在(zai)低瓦斯礦緩(huan)坡(po)斜(xie)(xie)井(jing)施(shi)工(gong)中，近年(nian)來(lai)也選(xuan)(xuan)(xuan)用(yong)(yong)裝(zhuang)巖(yan)機裝(zhuang)巖(yan)，轎車排(pai)矸(gan)(gan)，既加快了掘(jue)(jue)進的速度也減少(shao)了地(di)上進步(bu)、排(pai)矸(gan)(gan)設備。