广泛运用于矿山、冶炼、建材、公路、铁路、水利和化学工业等众多部门，破碎抗压强度不超过320兆帕的各种物料。
It is widely used in mining, metallurgy, construction material, highway, railway, water conservancy and chemical industries for crushing various materials with compression strength less than 320 MPa.
软弱、破碎围岩的公路隧道支护一直是困扰公路隧道施工的技术难题。
The support for porous and broken wall rock has been a major technical challenge in construction of highway tunnels.
结合工程实例，探讨山区公路隧道新奥法施工中地质断层破碎带的处理技术。
This paper discusses the treatment technique for highway tunnel in fault rupture zone during construction with New Austrian Tunneling Method.
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