巷道

Through Analysis on roadway roof separation time and law,Adoption malison reinforcing roadway roof separation Exceed the range area,Make the obvious result.

通过对顶板离层时间及规律进行分析,采用马丽散对顶板离层超范围区进行加固,取得明显效果。

Accoording to the result on observation of rock pressure,adaptability of telescopiform bolt in soft rock road and reasonable structural parameter are analysed.

根据矿压观测结果分析了可杆对软岩支护的适应性及其合理的结构参数。

With project instance, this paper introduced the calculation procedure and method about lofting and designing the tunnel stringcourse with sweeping matrix vertical curve.

结合工程实例,介绍了大半径竖曲线腰线放样设计的计算步骤和方法。

A mechanics model of dynamometry bolt was given and it was shown that dynamometry bolt mainly bear tension and torque in real application.

出支护测力杆的力学模型,指出测力杆实际应用主要承受力、扭矩作用。

Safety effective of metal forepole support was analyzed in beam and bolting with wire mesh,problem and improvement was given safety effective was ensured.

针对金属前探支护在架棚及网支护的安全作用进行了全面分析,提出了改进方案和存在问题,确保了金属前探支护的安全作用。

The results obtained show that airflow reversal of declensional ventilation is catastrophic and the reversal may occur even in higher quantity of ventilation airflow.

下行风流逆转在跨越临界点时具有突跳特征，风量维持较高数值时仍具有随时逆转的可能性。

In the analysis a 2 dimension element is combined with the boundary punition element(spring element) to calculate stress distribution at the periphery of a tunnel.

通过2维元与边界罚单元（弹簧元）耦合分析，可计算出开初期周边应力的分布。

Due to the complexity of occurrence condition and the polytropy of influencing factors,the excavation and supporting in soft failure roadway under high ground stress become very difficult.

高地应力破碎软岩,由于赋存条件的复杂性和影响因素的多变性,使得该类的开挖与支护极为困难。

Aiming at difficulties in supporting dilatable soft rock roadway, control method was put forward to control effectively deformation and failure of dilatable soft rock roadway in Hongmiao Colliery.

针对红庙煤矿膨胀性软岩存在的难题，出了针对性的控制方案，并在实践得到了验证，有效地控制了红庙煤矿膨胀性软岩的变形和破坏。