CAJ | 학술논문

__摘_梵王寺煤矿主井设计深度650m，净直径8.5m，采用全深冻结法凿井。井筒特大型箕斗装载硐室底板垂深566m，掘进总体积7079m3，掘进宽度15.356m，采用锚网索喷＋钢筋混凝土碹联合支护，混凝土支护量3533m3，强度等级C80。通过对硐室支护参数进一步优化，优选施工方案和施工工艺，在对穿过硐室的冻结管合理处理的基础上，采用先拱后墙、分部分段、自上而下施工方法刷掘，再自下而上与井筒一道立模浇筑永久支护，实现了安全、优质、快速、高效施工。
__적_범왕사매광주정설계심도650m，정직경8.5m，채용전심동결법착정。정통특대형기두장재동실저판수심566m，굴진총체적7079m3，굴진관도15.356m，채용묘망색분＋강근혼응토선연합지호，혼응토지호량3533m3，강도등급C80。통과대동실지호삼수진일보우화，우선시공방안화시공공예，재대천과동실적동결관합리처리적기출상，채용선공후장、분부분단、자상이하시공방법쇄굴，재자하이상여정통일도립모요축영구지호，실현료안전、우질、쾌속、고효시공。
A designed depth of a mine main shaft in Fanwangsi Mine was 650m with a net diameter of 8.5m and was sunk with a full depth freezing method. A vertical depth of a floor in the ultra large skip loading chamber in the mine shaft was 566m. A total excavation volume of the loading chamber was 7 079m3 and an excavation width of the loading chamber was 15.356m. A combined support with bolt/steel mesh/anchor/shotcreting + reinforced concrete was applied to the loading chamber ,a concrete support volume of the loading chamber was 3 533m3 and the strength grade was C80. With a further optimization on the support parameters of the chamber and an optimal selection on the construction plan and construction technique ,based on the rational treatment of the freezing pipes w hen the pipes passed through the chamber ,a construction method with an arch construction first and then a wall construction second ,a partial and sectional construction and from a top to bottom construction was ap-plied to the excavation of the chamber and a vertical formwork concrete pouring was conducted with the mine shaft from bottom to top for the permanent support. Thus a safety ,excellent quality ,rapid and high efficient construction was realized.