CAJ | 학술논문

以两岔河大桥工程为研究对象，采用 ABAQUS 软件，基于有限元—离散元耦合分析技术，建立能够精确反映地形地质条件的精细地质力学模型。在此基础上，建立数值分析模型，对上游侧陡崖边坡破坏模式以及上游侧陡崖失稳对邻近桥梁安全影响进行分析。研究结果表明：上游侧陡崖边坡的破坏模式是错落式破坏；上游侧陡崖边坡失稳后，破坏岩体将可能撞击桥梁墩台底部，从而导致桥梁垮塌；并根据破坏模式给出了相应的整治建议措施。
이량차하대교공정위연구대상，채용 ABAQUS 연건，기우유한원—리산원우합분석기술，건립능구정학반영지형지질조건적정세지질역학모형。재차기출상，건립수치분석모형，대상유측두애변파파배모식이급상유측두애실은대린근교량안전영향진행분석。연구결과표명：상유측두애변파적파배모식시착락식파배；상유측두애변파실은후，파배암체장가능당격교량돈태저부，종이도치교량과탑；병근거파배모식급출료상응적정치건의조시。
Regarding the project of Liangchahe Bridge as researching object.Base on the infinite element -ele-ment coupling analysis technology and ABAQUSS software,this paper established a geo -mechanical model which can accurately reflect the terrain and geological conditions.Then a three -dimensional numerical model was built.With the analysis model,this paper analyzed the failure mode of the steep slope in the tunnel exit,the upstream side of steep slope failure mode and the upstream side of a steep cliff instability influence on the safety of adjacent bridge.The results show that,the failure mode of the steep slope in the tunnel exit is progressive dumping damage;The failure mode of steep slope in the upstream side is strewn at random type damage;If the steep cliff slope in the upstream side instability,the failure rock would hit the bottom of the bridge pier,which would lead to the bridge collapse;Based on the failure mode,the corresponding improvement suggestions were put forward.