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Journal of Computer Methods in Civil Engineering

Open Access

EISSN: 2832-9104

Aims and Scope：Journal of Computer Methods in Civil Engineering is an international journal that publishes academic articles in the application of computer methods in civil engineering, focusing on the problems arising in civil engineering that can be solved through advanced mathematical modeling, simulation and numerical analysis on the basis of mechanics, mathematics, computer science and other relevant scientific disciplines.

The topics covered by Journal of Computer Methods in Civil Engineering include but are not restricted to: nonlinear structural analysis; continuum mechanics and mechanics of materials; biomechanics; advanced structural analysis; finite elements in fluids and solids; multiscale techniques; parallel computing methods; solid and structural mechanics; fluid mechanics; mechanics of materials; heat transfer; dynamics; geomechanics; acoustics.

The targeted readers of the journal are global professionals engaged in the research and application of computer methods in the field of civil engineering.

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2023-12-20

Current Issue

Research on initiation stress of jointed rock mass under triaxial compression test

by Hang Zhao and Xinping Li and Tingting Liu and Yi Luo

2023.2(1);10.58396/cmce020105 - 06 Jun 2023

On the basis of the experimental study about the elastic wave propagation characteristics in jointed rock mass under triaxial compression test, Firstly, the initiation stress is determined by the comparison of the experimental results. After that, on the basis of fracture mechanics theory, the fracture development process of rock mass is studied, and the initiation strength equation of fractured rock mass is established. Finally, combined with experimental data, verification and analysis of the initiation strength equation. Research shows:(1) In intact rock mass, the opening and closing of microscopic cracks have less effect on the amplitude of the elastic wave, but in jointed rock mass, that have great effect on the amplitude of the elastic wave. (2) Under different confining pressures of triaxial compression test, as the cracks in the rock mass start breaking, the axial compressive stress is linear with confining pressure. (3) The initiation strength equation of jointed rock mass is in accordance with the experimental results, the research results have some guidance significance to practical engineering.

Numerical simulation and verification of the loose dumping limiting height

by Gao-min Liu and You-liang Zhang and Deng-xue Liu

2023.2(1);10.58396/cmce020104 - 06 Jun 2023

Common deformation and intensity control theory systems for determining the waste dump limiting height ignore the influence of topsoil basal thickness. The research of Yan Rong-gui et al indicates that the interaction mechanism between flat base site and loose dumping is crucial to determine the waste dump limiting height. But there is hardly any correlation analysis of the numerical simulation. Connecting with project examples, firstly using the theoretical formula to determine the limiting height-(61-97) m. When considering the topsoil basal thickness, the value can be raised to 280m safely. Then establish the numerical model of thin topsoil basement case and thick overburden basement case for finite element simulation and verification, the results show that the effect of dump load mainly acts on the bedrock with the thin topsoil basement mainly transferring the load. The thick overburden basement bears the weight of the dump in the second case, and certainly the dump limiting height determines by the deformation and intensity control theory systems. Based on the strength reduction finite element method, we get safety factor consistent with the limit equilibrium analysis. The results of numerical simulation analysis not only verify the interaction mechanism between flat base site and loose dumping but further improve the algorithm for determination of waste dump limiting height, what's more, provides more scientific basis for extended using of this kind of idea, method and formula for determining waste dump limiting height. From another point of view, it also provides meaningful reference for mine disaster prevention and mitigation.

Zoning design of a deep and large foundation pit adjacent to the Yangtze River in Wuhan

by Ruifang Wang

2023.2(1);10.58396/cmce020103 - 06 Feb 2023

Taking the design of a deep and large foundation pit near the Yangtze River in Wuhan as an example, combining with the complex environment around the foundation pit and considering the development sequence of the construction unit, the work scheme of "zoning design, zoning construction, supporting pile + internal support" is adopted. In order to reduce the influence of foundation pit excavation on adjacent excavation, piles with large diameter and small pile spacing are used as isolation piles. Using 90 deep dewatering Wells and cement mixing pile (local CSM) as water stop curtain, the calculation can meet the requirements of foundation pit dewatering. The existing monitoring data show that the design of the foundation pit is safe, reasonable and economical, which can provide a certain reference for similar projects.

Numerical solution of dissimilar inclusion problem for square notch with small round corners in plane elasticity

by Yizhou Chen

2023.2(1);10.58396/cmce020102 - 26 Dec 2022

In this paper, the stress solution for a square notch with small round corners is studied. The square notch is composed of two portions, or the matrix and the inclusion. The elastic property of the inclusion portion is different to that of the matrix. Remote loading is applied. When the dissimilar inclusion is embedded in the matrix, the stress state in the inclusion will be changed significantly. The interface conditions along interface are formulated exactly. Complex variable function method is used to solve the problem. The complex potentials in the matrix and the inclusion are assumed in different structure. In the formulation, the number of the equations is larger than that of the unknowns. Therefore, the weight residue technique is used to solve the algebraic equation. The tangential, normal and shear stress components along the interface from the matrix and inclusion side are evaluated from the solution of the algebraic equation. In the computation, significant stress concentration has been found for the tangential stress component.

Impact factors on rockfall movement using high-speed camera binocular stereo vision technology

by Xiang Gao and Guoyang Liu and Gangyong Song and Wu Bo and Zhuangzhuang Wang and Hanyun Liu and Xu Han and Xuan Lin

2023.2(1);10.58396/cmce020101 - 26 Dec 2022

Rockfall is a frequent and serious geological hazard in mountainous areas worldwide. It is of great significance to fully understand rockfall movement for disaster assessment and prevention. In this paper, based on the principle of binocular stereo vision, a filed experimental monitoring technology was developed to conduct the rockfall movement experiment research. Through the orthogonal experimental method, taking the block velocities obtained by binocular stereo vision system as a reference index, the impact factors such as the slope angles and the falling heights, shapes and masses of blocks on rockfall movement are studied. The lateral deviations and jumping heights of different blocks when they are released from the same falling height and moving along the same slope are presented. The results show that slope angle is the most key factor affecting block movement, while the falling heights, shapes and masses of blocks are the secondary factors. Moreover, the experimental methods and results of this paper can lay a foundation for the further study of rockfall movement characteristics.