The deep well coal road cable of small diameter hole and high pre-tension structure and craft were studied according to the condition of high stress and composite roof in Fengcheng coal field.

• 结合丰城矿区高地应力、合顶板等复杂地质条件,研究深井条件下煤巷锚索采用小孔径、加高预应力的结构形式和施工工艺。