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A Constitutive Model for Rock Joints under Cyclic Loading Dongmei Yang1,a and Xiangbo Qiu2,b 1University of Wuhan,School of Civil Engineering,Wuhan,China 2Wuhan Institute of Rock and Soil Mechanics,Chinese Acadmy of Sciences,Wuhan,China admyang@whu.edu.cn, bxbqiu2003@yahoo.com.cn Key words: Cyclic Loading; Rock Joints; Joint Constitutive Model; Joint Stiffness; Degradation of Asperities Abstract.
Cyclic loads are commonly encountered in geotechnical engineering; however most constitutive models do not account for the effect that such loads can have on the mechanical behaviour of soils and rocks.
In practice cyclic loads are commonly encountered in geotechnical engineering, for example in rock slopes during an earthquake, rock cliffs on the shoreline due to breaking waves, or even on the walls of deep boreholes during drilling in petroleum and gas engineering.

Change Properties of Water Conductivity Height in Coal Roof Induced by Mining in Extra Thick Coal Seams under Influence of complex Fissures Zone Sun Shiguo1, a, Li Guohong2, b, Wang jingxin2, c, Zhao Hongying1, d and Feng Shaojie1, e 1Shool of Civil Engineering, North China University of Technology, Beijing, China 2 Laohutai Coal Mine, Fushun Mining Group, Fushun, China a ssg918@163.com, bzhao2589565785@163.com, c419025270@qq.com, dzhy409@163.com, efsjiee@163.com Keywords: fully mechanized caving; water conductivity height; numerical simulation.
With a number of mining engineering cases, we studied complex fault zone overlying rock mass damage characteristics under the compound effect of many mining area.
Feng: Journal o f Mining & Safet y Engineering, Vol, 23(2006), p.220.
Wang, K.X.Duan and Q.Li: Journal of Water Resources ＆ Water Engineering, Vol, 22(2011), p.63.

Confinement Shear Effect in Fiber Composites Puzi Zhang1, a, Jinxing Liu1, b 1Faculty of Civil Engineering and Mechanics, Jiangsu University, Xuefu Road 301, Zhenjiang, Jiangsu Province, China, postal code: 212013 a1035866158@qq.com, btbjx68@hotmail.com Keywords: Fiber Composites, Confinement Shear Effect, Interface, Lattice Modeling.
Composites have been playing an increasingly important role in various engineering applications.
Therefore, they have been used in many areas of engineering.
The macroscopic properties of composites need to be well designed for engineering structures.

Tjaronge1,b, Abdul Rachman Djamaluddin1,c and Hikari Khalilah Tjaronge1,d 1Department of Civil Engineering, Faculty of Engineering, Universitas Hasanuddin, Gowa, Sulawesi Selatan, Indonesia ama-caronge@unhas.ac.id, btjaronge@yahoo.co.jp, cardj2018rha@gmail.com dhikari.khalilah@gmail.com Keywords: Sustainable, mortar, waste tea ash, cement Abstract.
The effects of PWTA on the basic engineering properties of mortar are evaluated and compared to mortar without PWTA.
Acknowledgment The authors would like to thank the Faculty of Engineering, Universitas Hasanuddin, for funding this research through the Laboratory-Based Education Project (LBE) in 2021.

A new dynamic measurement for the initial prestress of membrane structure Weijian Zhou1,2,a and Wenbo Sun1, b 1 Architectural Design and Research Institute, South China University of Technology, Guangzhou 510640, Guangdong, China 2 School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, Guangdong, China ajjscut2006@163.com, bsunwenbo@scut.edu.cn Keywords: membrane structure; membrane prestress measurement; free vibration characteristics; Vibration method Abstract.
This article analyzes the vibration characteristic of the typical membrane structures (Saddle Shape and High Point Shape) and provides the theoretical basis for a new approach which is convenient for operation and reliable for engineering application.
To discover a prestress measurement which is convenient for operation and reliable for engineering application, it is necessary to study the vibration characteristic of the membrane structure.

Practical examples are taken to enable the hydraulic engineer to better understanding the advocated method and to observe the facility with which design of such a geometric profile can be performed.
Introduction In the field of hydraulics, three main problems may arise in the practice of hydraulic engineer.
To solve the problem of the design, the hydraulic engineer uses very laborious graphical methods or iterative procedures [5, 6, 7].
Civil Engineering and Science, 1(1) (2012) 36-41
Engineering, ASCE, 102(5) (1976) 657-664

Mixture ratio design of inorganic polymer concrete and the study of expansive performance Liming Yu1,a, ZheAn Lu2,b,Xiaohui Yuan1,c and Huiguo Chen3d 1School of Civil Engineering & Architecture, Wuhan University of Technology, Wuhan 430070, China 2Hubei Key Laboratory of Road, Bridge and Structural Engineering, Wuhan University of Technology, Wuhan 430070, China 3Dept.of Military Construction Engineering, Logistic Engineering University of PLA, Chongqing 401311, China ayuliming104@126.com, bluzhean@163.com cyxiaohui2006@163.com, dchenhg_mail2@qq.com Keywords: inorganic polymer concrete; mixture ratio; compressive strength; dry shrinkage; expansive agent Abstract: Inorganic polymer concrete of a new environment-friendly material has been the hot issue in engineering research so far.

Image Analysis and Mechanical Properties of Asphalt Mixture with Waste Plastic Ng Cui Ming1,a,*, Nicole Liew Siaw Ing1,b, Ramadhansyah Putra Jaya1,c, Zaid Hazim Al-Saffar2,d, Muhammad Naqiuddin Mohd Warid3,e and Haryati Yaacob3,f 1Department of Civil Engineering, College of Engineering, Universiti Malaysia Pahang, 26300 Gambang, Kuantan, Malaysia 2Building and Construction Engineering Department, Technical College of Mosul, Northern Technical University, 41002 Mosul, Iraq 3Faculty of Engineering, School of Civil Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru, Malaysia a,*ngcuiming@gmail.com, bnicole95liew@gmail.com, cramadhansyah@ump.edu.my, dzaid.alsaffar025@gmail.com, enaqiuddin@utm.my, fharyatiyaacob@utm.my Keywords: Waste Plastic, Mechanical Properties, Asphalt Mixture, Creep Modulus, Image Analysis.
Cogent Engineering, 3(1). https://doi.org/10.1080/23311916.2015.1133480
In IOP Conference Series: Materials Science and Engineering (Vol. 527).
In IOP Conference Series: Materials Science and Engineering (Vol. 204).
Advances in Civil Engineering, 2021. https://doi.org/10.1155/2021/6622024

Numerical Simulation of Flow around High-rise Buildings Based on Reynolds Stress Model Zupeng Zhang1,a, Wei Zhang1,b and Guoping Chen1,c 1School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, Sichuan, China, 621010 aswusthot00106@163.com, bzwell@swust.edu.cn, cguopingchen2002@163.com Keywords: Numerical simulation, Reynolds Stress Model(RSM), Atmosphere boundary layer(ABL), Flow around high-rise buildings.
In this paper, a modified inlet atmosphere boundary layer (ABL) which satisfies the turbulence model equations is applied to computational wind engineering.
Introduction In the numerical simulation of flow around the bluff body in the building wind engineering, the selection of the turbulence model and the boundary conditions of ABL have a significant effect on the computed result.

Simulation Analysis of Guided Wave Testing on Wind Turbine Blade Shell with Epoxy Resin and Semi-analytical Finite Element Modeling Zhou Fang-jun1,Sun Yong-liang2,Wang Yue-min1,Sun Feng-rui1 1.College of Architecture and Power,Naval University of Engineering,JieFang Road 717,Wuhan,430033,China, thereisfancy@tom.com 2.JiuSan Road 48,Lushunkou District,Dalian,116041,China Keywords: wind turbine blade;non destructive testing;guided wave;dispersion;simulation.
Introduction Nondestructive testing (NDT) as comprehensive analysis techniques has been used in science and industry to evaluate the properties of a material,component or system without causing damage[1].And NDT has been a commonly-used tool in mechanical engineering,electrical engineering,civil engineering,aeronautical engineering.Guided wave testing (GWT) is one of the latest methods in the field of NDT.Due to the advantages of 100% volumetric coverage,long range inspection and limited access,GWT is widely used to inspect and screen many engineering structures,particularly for metallic pipelines[2,3].There are also some applications on inspecting rail tracks,rods and metal plate structures[4-6].