城郊煤矿大硐室喷射高韧性纤维混凝土支护

针对煤矿大硐室断面跨度较大，围岩稳定性较差，砌筑混凝土支护较为复杂，用锚网喷支护喷层易开裂的缺点，采用喷射高韧性纤维混凝土配合锚网喷、锚索支护技术，从而缩短施工工期，减少投入，避免喷层开裂，有效支护大硐室。

Application of Shot High Tenacity Fiber Concrete Lining Technique in Big Chamber of Chengjiao Colliery

Aimed at the cross-section's big span in big chamber in colliery,the adjoining rock's bad stability,the masonry concrete's complex supporting and the shot bed of bolting and shotcrete lining's broken shortage,the author has introduced a way to reduce construction period and investment,to avoid breaking shot bed and to effectively support big chamber by adopting shot high tenacity fiber concrete lining technique,combing with bolting and shotcrete lining and cable anchor supporting technique.