CAJ | 학술논문

在基坑支护设计时，通常将车辆荷载等效为均布条形荷载来进行超载考虑，但相关规范在此并没有具体规定，以致工程师在设计时往往只能凭借工程经验来进行估算。基于弹性理论推导了集中荷载和均布条形荷载作用下，围护结构所受水平合力的计算公式；然后结合具体案例，分别使用弹性理论和有限元模拟，获得车辆荷载对应的条形均布荷载值。通过对比分析，提出了基坑支护设计时车辆荷载的等效均布条形荷载取值方法及具体数值。
재기갱지호설계시，통상장차량하재등효위균포조형하재래진행초재고필，단상관규범재차병몰유구체규정，이치공정사재설계시왕왕지능빙차공정경험래진행고산。기우탄성이론추도료집중하재화균포조형하재작용하，위호결구소수수평합력적계산공식；연후결합구체안례，분별사용탄성이론화유한원모의，획득차량하재대응적조형균포하재치。통과대비분석，제출료기갱지호설계시차량하재적등효균포조형하재취치방법급구체수치。
During retaining and protection design of excavation,vehicle load is usually equivalent to a uni-formly distributed strip load and considered as overload.But the related specification did not propose the de-tailed provisions for reference,so that engineers can only estimate by engineering experience in designing.U-sing the elastic theory,the author had derived two formulas of the enclosure structure which suffered horizontal resultant force under concentrated load and uniformly distributed strip load respectively.Based on practical en-gineering background,the value of uniformly distributed strip load which can be equivalent to vehicle load has been calculated by using the elastic theory and finite element method.Through the comparison and analysis, this paper puts forward the detailed values and methods to equivalent vehicle loads in retaining and protection design of excavation.