Quick driving technology to prevent broken head-on leakage by natural balance arch supporting roof method

In view of the disadvantages of the commonly used driving methods and the methods for preventing and controlling the head-on leakage of the roadway through the broken rock strata, the theory of natural balance arch is applied and expanded. It is considered that the natural balance arch has two properties of stable bearing capacity and self-collapse after its formation. It is necessary to actively create and apply the natural balance arch. On this basis, a kind of quick driving technology to prevent broken head-on leakage with natural balance arch supporting roof method is proposed. The design principle and construction technology are explained, and the correctness and scientificity are demonstrated. The adaptability and beneficial effects have been confirmed through field engineering practice. It solves the on-site problems, realizes the quick driving and the win-win of safety and efficiency.