【摘要】 本文用萨尔马法和我国抗震规范法两种方法，分析了大广坝上坝的抗震稳定性，萨尔马法可算出临界加速度，不能直接算出安全系数，本文进一步发展，可算出安全系数，并与抗震规范法算出的结果作了对比，经过大量的计算，发现了萨尔马法所存在的某些局限性，并对其原因进行了初步探讨，对改进的抗震规范法提出了实施的办法，以考虑地震孔隙水压力升高强度降低的影响．更多还原

【Abstract】 Sarma method is a more accurte method of slices that analyze earth dam stability.Based upon this method, the critical acceleration can be computed, and however the factor ofsafety can not be computed directry. The Sarma method being futher developed in this paper, thefactors of safety can be also calculated and are compared with those by China Earthquake Criteri-on method. Through a lot of calculations,some limits of the sarma method are pointed out and rel-ative reasons are discussed. Taken into account the effect of the strength reductoin due to the porepressure during earthquake, the complement programe of the improved China earthquke criterionmethod is suggested.更多还原