CAJ | 학술논문

为了分析多锤头破碎机（M HB）作用下的旧水泥混凝土路面力学响应，文章建立了ABAQUS三维有限元模型，对不同锤击位置、不同路基模量、不同锤击能量下的路面力学响应和破坏效果进行分析。研究结果表明：锤击位置、路基模量、锤击能量共同决定M HB作用下的路面力学响应和破坏效果；M HB作用于板角时路面板最容易破碎，但破碎面积最小；路基模量越大，路面板越不容易破碎；锤击能量越大，路面所受应力越大，路面板越容易破碎。因此，建议在进行旧水泥路面碎石化时，应当根据路面的具体状况以及路基模量的大小选用不同的锤击位置和锤击能量。
위료분석다추두파쇄궤（M HB）작용하적구수니혼응토로면역학향응，문장건립료ABAQUS삼유유한원모형，대불동추격위치、불동로기모량、불동추격능량하적로면역학향응화파배효과진행분석。연구결과표명：추격위치、로기모량、추격능량공동결정M HB작용하적로면역학향응화파배효과；M HB작용우판각시로면판최용역파쇄，단파쇄면적최소；로기모량월대，로면판월불용역파쇄；추격능량월대，로면소수응력월대，로면판월용역파쇄。인차，건의재진행구수니로면쇄석화시，응당근거로면적구체상황이급로기모량적대소선용불동적추격위치화추격능량。
In order to analyze the mechanical response of existing cement concrete pavement under the impact of the multiple-head breaker(MHB) ,the three-dimensional finite element model of ABAQUS is built and the mechanical response and damage effect of the pavement with different hammer positions ,different subgrade modulus and different hammer energy are analyzed . T he results indicate that the mechanical response and damage effect of the pavement are decided by the hammer positions ,subgrade modulus and hammer energy . The pavement is most easily broken when the MHB acts on the corner ,but the broken area is minimum ;the pavement is more difficult to break w hen the subgrade modulus is bigger ;the stress is larger and the pave-ment is easier to break when the hammer energy is bigger .Therefore ,different hammer positions and hammer energy should be chosen according to the conditions of the pavement and subgrade modulus in the rubblization of the existing cement pavement .