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2013年11月28日(ri)，我(wo)礦主井掘砌工(gong)程正(zheng)式(shi)啟動(dong)，并(bing)舉(ju)行了(le)開工(gong)儀式(shi)。施工(gong)單(dan)位安徽(hui)龍(long)達公司、監理(li)單(dan)位北京康(kang)迪(di)監理(li)公司和我(wo)礦相關(guan)人員均參加了(le)本工(gong)程啟動(dong)儀式(shi)。

主(zhu)井(jing)(jing)(jing)為(wei)箕(ji)斗(dou)提升井(jing)(jing)(jing)，采(cai)用冷(leng)凍法(fa)施工，設(she)計(ji)井(jing)(jing)(jing)筒(tong)凈直徑4.5米(mi)(mi)(mi)(mi)，井(jing)(jing)(jing)口標高(gao)+14米(mi)(mi)(mi)(mi)，井(jing)(jing)(jing)底標高(gao)-460米(mi)(mi)(mi)(mi)，井(jing)(jing)(jing)筒(tong)深度474米(mi)(mi)(mi)(mi)；井(jing)(jing)(jing)筒(tong)采(cai)用雙(shuang)(shuang)層井(jing)(jing)(jing)壁(bi)(bi)支護（外(wai)(wai)壁(bi)(bi)0.3米(mi)(mi)(mi)(mi)、內壁(bi)(bi)0.6米(mi)(mi)(mi)(mi)），混(hun)凝(ning)(ning)土強(qiang)度等(deng)級(ji)外(wai)(wai)壁(bi)(bi)為(wei)C40、內壁(bi)(bi)為(wei)C60；井(jing)(jing)(jing)頸段30米(mi)(mi)(mi)(mi)，外(wai)(wai)壁(bi)(bi)素混(hun)凝(ning)(ning)土、內壁(bi)(bi)雙(shuang)(shuang)層鋼(gang)(gang)(gang)筋(jin)混(hun)凝(ning)(ning)土；井(jing)(jing)(jing)筒(tong)正常段外(wai)(wai)壁(bi)(bi)-200米(mi)(mi)(mi)(mi)以上(shang)為(wei)素混(hun)凝(ning)(ning)土、-200米(mi)(mi)(mi)(mi)以下為(wei)單層鋼(gang)(gang)(gang)筋(jin)混(hun)凝(ning)(ning)土；井(jing)(jing)(jing)筒(tong)正常段內壁(bi)(bi)為(wei)雙(shuang)(shuang)層鋼(gang)(gang)(gang)筋(jin)混(hun)凝(ning)(ning)土；井(jing)(jing)(jing)筒(tong)自上(shang)而下設(she)計(ji)3個馬頭門和1個箕(ji)斗(dou)裝(zhuang)載硐室，分別為(wei)-340米(mi)(mi)(mi)(mi)、-385米(mi)(mi)(mi)(mi)、-460米(mi)(mi)(mi)(mi)和-413米(mi)(mi)(mi)(mi)中段。