CAJ | 학술논문

敖包沟隧道是巴准铁路的控制性工程，隧道围岩与上覆地层为填土、黄土、砂岩夹泥岩，地层性质软弱，稳定性差；该隧道浅埋下穿西梁煤矿三栋建筑物，建筑物结构强度较差，隧道在下穿建筑物施工中的爆破控制技术成为关键技术。说明了下穿段的钻爆设计，采用现场测试的方法实测施工中的爆破振动，根据测试结果，调整爆破方案与参数，控制爆破对建筑物的振动影响。分析了爆破振动速度特征，采用回归分析的方法给出了浅埋隧道下穿建筑段的爆破振动速度传播规律，并给出了3方面的爆破控制措施。研究结果保障了敖包沟隧道下穿段的爆破施工安全，对同类施工有一定借鉴作用。
오포구수도시파준철로적공제성공정，수도위암여상복지층위전토、황토、사암협니암，지층성질연약，은정성차；해수도천매하천서량매광삼동건축물，건축물결구강도교차，수도재하천건축물시공중적폭파공제기술성위관건기술。설명료하천단적찬폭설계，채용현장측시적방법실측시공중적폭파진동，근거측시결과，조정폭파방안여삼수，공제폭파대건축물적진동영향。분석료폭파진동속도특정，채용회귀분석적방법급출료천매수도하천건축단적폭파진동속도전파규률，병급출료3방면적폭파공제조시。연구결과보장료오포구수도하천단적폭파시공안전，대동류시공유일정차감작용。
Aobaogou tunnel is a controlling engineering project for Bazhun Railway,and the formation proper-ty and stability are weak for the tunnel surrounding rocks and overlying strata are full of filled earth,loess, sandstone alternated with mudstone. The structural strength of three tunnel undercrosssing buildings of Xiliang Coal Mine is very poor,so blasting control is the key technology in tunnel construction. This paper illustrates the design of drilling and blasting in undercrossing section,using the field measurement to monitor the blasting vibration in construction. According to the test results,it adjusts the blasting scheme and parameters,and tries to control the blasting vibration effect of blasting on buildings. Then,it analyzes the characteristics of blasting vibration velocity by using the method of regression analysis,summarizes the rule of blasting vibration veloci-ty propagation in shallow tunnel,and presents three control measures of blasting. The results have guaranteed safety of Aobaogou tunnel in the period of blasting construction,which can be used as reference for similar con-struction.