CAJ | 학술논문

以川气东送管道铺设中的管道横穿罗针田滑坡工程为背景，建立管道横穿滑坡情况下的力学模型，并采用静力学解析计算的方法对管道变形、受力状态进行分析研究，获得了滑坡位移、推力与管体的响应特征，如应变或应力的关系，从而为地质灾害安全风险评价及预警提供定量的评价指标。结果表明：该管道横穿滑坡段暂时处于安全状态；管道变形分布曲线呈现正态分布规律，滑坡体正中管道部位变形最大，向两端变形逐渐减小；管道弯矩分布符合两端固定简支梁承受均布荷载弯矩形态，两端应力最大，呈现中部正弯两端负弯态势，管道两端最易发生破坏；研究成果可为类似输油气管道穿越滑坡地质灾害的破坏预警提供理论参考。
이천기동송관도포설중적관도횡천라침전활파공정위배경，건립관도횡천활파정황하적역학모형，병채용정역학해석계산적방법대관도변형、수력상태진행분석연구，획득료활파위이、추력여관체적향응특정，여응변혹응력적관계，종이위지질재해안전풍험평개급예경제공정량적평개지표。결과표명：해관도횡천활파단잠시처우안전상태；관도변형분포곡선정현정태분포규률，활파체정중관도부위변형최대，향량단변형축점감소；관도만구분포부합량단고정간지량승수균포하재만구형태，량단응력최대，정현중부정만량단부만태세，관도량단최역발생파배；연구성과가위유사수유기관도천월활파지질재해적파배예경제공이론삼고。
On the background of the pipeline laying project through the Luozhentian landslide in the gas transportation from Sichuan to eastern area , the response features of landslide displacement and thrust to the stress and strain of the pipeline were acquired ,via the mechanical modeling of the pipeline laying landslide and analytic statics calculating method of the deformation and force state of the pipeline ,therefore ,providing the quantitative assessment criteria to the security risk evaluation and early warning of geologic hazard . The results indicate that this pipeline laying landslide is safe currently .The distribution curve of pipeline deformation obeys the normal distribution law . The pipeline deformation reaches the peak in the middle of the landslide ,while reducing gradually to the edges of two sides .The pipeline bending moment is in the bending state of the simply supported beam with two fixed edges under distributed loads .The maximal pipeline stress is on the two sides , showing the positive bending in the middle and negative bending on the sides ,which making the edges of two sides damaged most easily .The study results can serve as theoretical references to the geologic hazard early warning in the similar oil-gas pipeline laying landslide .