CAJ | 학술논문

吴家沟尾矿库初期坝包括下部天然岩土体初期坝和上部土石混填初期坝两部分。在分析初期坝基本特征的基础上，把初期坝视作重力式挡土墙结构，采用极限平衡法计算堆积坝对初期坝的静止土压力和主动土压力，应用抗剪强度公式分析上部初期坝与基岩之间坝基面的抗滑稳定性，得到无水和有水工况下静止土压力和主动土压力作用下坝基面抗滑稳定安全系数，其安全系数值明显大于规范规定的安全系数。采用ABAQUS有限元软件对初期坝应力特征进行分析，初期坝（包括天然坝体和堆石坝体）的最大剪应力及最大竖向应力分别小于坝体的抗剪强度和抗压强度，初期坝是稳定的。
오가구미광고초기패포괄하부천연암토체초기패화상부토석혼전초기패량부분。재분석초기패기본특정적기출상，파초기패시작중력식당토장결구，채용겁한평형법계산퇴적패대초기패적정지토압력화주동토압력，응용항전강도공식분석상부초기패여기암지간패기면적항활은정성，득도무수화유수공황하정지토압력화주동토압력작용하패기면항활은정안전계수，기안전계수치명현대우규범규정적안전계수。채용ABAQUS유한원연건대초기패응력특정진행분석，초기패（포괄천연패체화퇴석패체）적최대전응력급최대수향응력분별소우패체적항전강도화항압강도，초기패시은정적。
The initial dam of Wujiagou tailings consists of the lower natural rock initial dam and the upper rock-soil mixed initial dam.Based on the analysis of the basic characteristics of the initial dam,the initial dam is considered as gravity retai-ning wall structure.The static earth pressure and active earth pressure of the fill dam to the initial dam are calculated by limit equilibrium method.The shear strength formula is used to study the stability against sliding of the interface between the upper initial dam and the bedrock.Then,the interface stability factor of static earth pressure and active earth pressure are respectively calculated under aqueous and anhydrous conditions.As a result,the interface stability factor is much greater than the safety factor of specification.The stress characteristic of initial dam is analyzed by adopting ABAQUS finite element software.The shear and vertical stress of the initial dam including natural dam and fill dam are both less than shear strength and compressive strength of the dam.It can be inferred the initial dam is stable.