CAJ | 학술논문

金川集团龙首矿1340 m中段采区溜井长度87.2 m ，井筒断面为圆形，净直径为3m。鉴于溜井断面小，且布置在高应力不良岩层中，工程施工难度极大。通过对溜井施工条件及现场实际情况的综合研究，对溜井施工机械化设备进行了合理化配套，并就高应力不良岩层溜井掘砌，创新采用了光面爆破、短掘短支、临时喷浆、一次锚喷网柔性支护和二次混凝土外加钢衬板刚性支护等综合技术，较好地解决了高应力不良岩层小直径溜井掘砌施工的技术难题，取得了很好的实际效果。
금천집단룡수광1340 m중단채구류정장도87.2 m ，정통단면위원형，정직경위3m。감우류정단면소，차포치재고응력불량암층중，공정시공난도겁대。통과대류정시공조건급현장실제정황적종합연구，대류정시공궤계화설비진행료합이화배투，병취고응력불량암층류정굴체，창신채용료광면폭파、단굴단지、림시분장、일차묘분망유성지호화이차혼응토외가강츤판강성지호등종합기술，교호지해결료고응력불량암층소직경류정굴체시공적기술난제，취득료흔호적실제효과。
The ore chute length of 1 340 m middle section is 87.2 m in Longshou Mine ,the chute sec‐tion is circular ,the net diameter 3 m. In consideration of the chute cross section is small ,and arranged in high stress rock mining area ,the engineering construction is very difficult. Through the integrated study of the chute construction conditions and actual situation ,the chute construction mechanization e‐quipment is assorted reasonably. Using smooth blasting ,short dig short ,temporary shotcrete ,express the flexible support at a time and secondary concrete and steel plate supporting integrated technology such as rigidity innovatively. The technical challenge in construction of small diameter chute dig build by laying bricks or stones in bad high stress rock is solved greatly ,has obtained the good actual effect.