CAJ | 학술논문

介绍4车道公路隧道的建设状况,分析目前4车道公路隧道的设计、施工等研究进展.结合广州龙头山双向8车道高速公路隧道,利用现场监测数据和不同开挖方式对应的围岩荷载的数值计算结果,分析和讨论应力路径对特大断面隧道围岩荷载的影响,并验证4车道特大断面隧道施工的围岩松弛范围.引入过程荷载影响系数,对导洞的荷载影响系数进行修正,在与普氏理论、公路隧道设计规范、曲海峰提出的荷载公式进行计算对比后,提出特大断面隧道更为合理的过程荷载计算公式.
개소4차도공로수도적건설상황,분석목전4차도공로수도적설계、시공등연구진전.결합엄주룡두산쌍향8차도고속공로수도,이용현장감측수거화불동개알방식대응적위암하재적수치계산결과,분석화토론응력로경대특대단면수도위암하재적영향,병험증4차도특대단면수도시공적위암송이범위.인입과정하재영향계수,대도동적하재영향계수진행수정,재여보씨이론、공로수도설계규범、곡해봉제출적하재공식진행계산대비후,제출특대단면수도경위합리적과정하재계산공식.
The construction of the situation of four-lane tunnel is introduced,and then its developments of design and construction at present are analyzed. Supported by Longtoushan bidirectional expressway tunnel with 8 lanes in Guangzhou,the effect of stress path of rock pressure on large-section tunnel is fully studied and discussed by making use of site measured data and numerical results of rock load with different excavations;meanwhile,the range of rock loose area of large-section tunnel with 4 lanes is verified. The load effect-coefficient of guide hole is modified by the coefficient of . After that,the results calculated by the formula compared with that calculated by M. M. Promojiyfakonov Theory,design specifications of highway tunnel and the formula proposed by H. F. QU,a new formula is proposed to calculate the process load of large section tunnel.