现代矿业
現代礦業
현대광업
Modern Mining
2015年
10期
6-9,14
,共5页
大断面硐室%中深孔爆破%分步爆破%施工组织
大斷麵硐室%中深孔爆破%分步爆破%施工組織
대단면동실%중심공폭파%분보폭파%시공조직
Large section chamber%Medium-length hole blasting%Step-by-step blasting%Construc-tion organization
某铁矿电机车维修硐室宽7．4 m，高9．275 m，采用传统方法施工此类大断面硐室存在施工难度大、效率低、工期长等问题。根据矿山地质情况，结合以往硐室开挖和中深孔爆破经验，采用分步爆破法施工。结果表明：中深孔爆破运用于大断面硐室施工安全可行，硐室成形质量好，在施工进度和成本方面优势明显，对类似工程具有较好的借鉴意义。
某鐵礦電機車維脩硐室寬7．4 m，高9．275 m，採用傳統方法施工此類大斷麵硐室存在施工難度大、效率低、工期長等問題。根據礦山地質情況，結閤以往硐室開挖和中深孔爆破經驗，採用分步爆破法施工。結果錶明：中深孔爆破運用于大斷麵硐室施工安全可行，硐室成形質量好，在施工進度和成本方麵優勢明顯，對類似工程具有較好的藉鑒意義。
모철광전궤차유수동실관7．4 m，고9．275 m，채용전통방법시공차류대단면동실존재시공난도대、효솔저、공기장등문제。근거광산지질정황，결합이왕동실개알화중심공폭파경험，채용분보폭파법시공。결과표명：중심공폭파운용우대단면동실시공안전가행，동실성형질량호，재시공진도화성본방면우세명현，대유사공정구유교호적차감의의。
There is an electric locomotive maintenance cavern in an iron mine,which its width and height is 7.4 m and 9.725 m,and it would be of high difficulty,low efficiency and long duration by a-dopting classical construction method.According to the geological conditions of the mine,combing with the experiences of cavern excavation and medium-length hole blasting,the step-by-step blasting method is used to conduct the chamber construction.The results show that the medium-length hole blasting method is suitable to the large section chamber construction,the chamber forming quality is good,the construc-tion schedule and cost of the medium-length hole blasting method is superior to others,it has reference for the similar projects.
