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Dynamic Load Effects of PVA Tail Sand Cement Base Composite Materials Wenbo Baoa, Shaofeng Zhang*, b, Gaohao Dia, Weiwei Ji, Lihui Qu School of architecuure& civil engineering, Shenyang university of technology, shenyang110870, China awenbobao@163.com, b380952896@qq.com, c964002457@qq.com Keywords: Impact energy; Ductility index; Toughness; Tailings cement-based composite materials Abstract.
So the engineering applications recommended replacement rate of the tailings is 50%.
Introduction Engineered cementitious composite (ECC) is a new type of ultra-high toughness cementitious composites material, which has been studied and developed by LI Victor C at University of Michigan in the early 1990s.
ECC is a fiber reinforced cementitious composites with specially selected short random fibers designed on the basis of micromechanics and engineered [1-4].

Stability Prediction of Intensification of the Lime Sludge Impoundment SLAVIK Ivan1,a* 1Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Department of Geotechnics, Radlinskeho 11, SK-813 68 Bratislava, Slovakia aivan.slavik@stuba.sk Keywords: impoundment, lime sludge, shear strength, slip surface, safety factor, dam, subsoil Abstract.
An impoundment is an engineering construction used for the safe deposition of unexploitable waste from industrial and mining facilities.
Introduction From a design and material point of view, impoundment is a markedly non-homogeneous engineering construction.
A stability analysis of an impoundment is a demanding engineering task.

However, the technique is not widely used so far in practical engineering.
Engineering Mechanics Vol. 26 (2009), p.115.
Composites Part B: Engineering Vol. 32(2001), p. 333
Engineering Mechanics and Engineering Vibration Vol. 24 (2004), p. 165.
Yang: Research on Performance Monitoring System and Damage Identification Method for Civil Engineering Structures (PhD thesis of Tianjin University, 2006).

Powder Particle Size Measurement with Digital Image Processing Using Matlab Licai WU, Chuang YU College of Architecture and Civil Engineering, Wenzhou University Zhejiang Wenzhou, China ac-yc@wzu.edu.cn, geoyuchuang@hotmail.com Keyword: powder, size measurement, Matlab, digital image processing, SEM Abstract.
The application of powder particle size measurement in engineering field are introduced, the major powder particle size research methods are also included.
In particular, with the development of industry and the progress of engineering technology, particle size measurement is especially important for the research of powders[2].

The monitoring and analysis of surface subsidence of Soft soil rock large section of subway tunnel shield construction Jinkui Li1, a, Bingwei Yan1,b and Yongjian Shi1,c 1 Dalian University Civil Engineering College, Dalian 116622, China ajinkee@126.com, bdabing14144@sina.com, c1083220407@qq.com Keywords: soft soil and rock; large section subway tunnel; rock stability; monitor.
The research results have reference value for the future similar engineering design and construction.
In the direction of tunneling, every 20m arranged monitoring sections of surface subsidence and assigns 5 points for each section. when Buried a surface subsidence monitoring points , the first task is to use the marine pile driver to make a diameter of 108 mm, 300 mm deep hole, than squeeze a 22 reinforced bar into the hole about 500 mm, a diameter of 108mm, about 300mm deep hole should be drilled with a engineering rhinestone labeled on the top of reinforced bar and polished the top smooth and the top shall not exceed out of the road plane, with concrete infill at last.

Experiment and Numerical Study on Shear Capacity of RC Beams Jun Liu1,a, Fengpeng Zhang 2 ,b, Yinbo Zuo 1,c 1School of Sciences, Northeastern University, Shenyang, Liaoning Province, China 2College of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning Province, China awangqiuzi815@sina.com, bzhangfengpeng@126.com, czuoyinbo@126.com Keywords: Concrete; Cyclic loading; Shear capacity; Diagonal crack width.
Experimental result shows that the decline of the shear strength of the RC beams due to cyclic loading can be characterized by the width of diagonal crack, according to the experimental phenomena, a formula for shear capacity after cyclic loading is derived for engineering use.
The remaining shear capacity of RC beam can be estimated by measuring diagonal crack width, so the method is suitable for engineering application.

Experiment study on Shear capacity of RC Beams Jun Liu1,a, Fengpeng zhang2 ,b, Yinbo Zuo1,c, Jinchao Ma1,d 1School of Sciences, Northeastern University, Shenyang, Liaoning Province, china 2college of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning Province, china a liujunneu@21cn.com,bzfpeng@sina.com,czuoyinbo@126.com, d815355127@qq.com Keywords: concrete; cyclic loading; shear capacity; diagonal crack width Abstract: Based on cyclic loading experiment of nine beams in the two groups, the relationship among the average web stress, initial diagonal crack width and shear capacity of RC beams was studied.
In addition, according to the experimental phenomena and the shear compression failure mechanism of beam, a formula for shear capacity after cyclic loading is derived for engineering use.
The remaining shear capacity of RC beam can be estimated by measuring diagonal crack width, so the method is suitable for engineering application.

Research on Crack Prevention Technology for Filler Wall of Concrete Block Dingtang Wang College of Civil Engineering, Anhui University of Architecture, Hefei, 230022, China wdt88@163.com Keywords: Research, Crack Prevention Technology, Filler Wall, Concrete Block Abstract.
It helps to limit or /and eliminate the block wall cracking, promote the healthy development of block, and provides valuable references for the similar engineering.

Numerical simulation of the influence of weld model on the response of stiffened plates under blast loading Xin-ming Zhu1, a, Hao Zhan1 and 2, b and Zhi-gang Jiang1, c 1Department of River-Crossing, College of Basic Education for Commanding Officers, National University of Defence Technology, Changsha, Hunan 410073, P.R.China 2College of Civil Engineering, Hunan University, Changsha, Hunan 410082, P.R.China axinming19860108@163.com, bzhan1234567890@tom.com, cjzg13508489165@yahoo.com.cn Keywords: blast shock, stiffened plates, weld, numerical simulation Abstract: Stiffened plates are used in a wide variety of engineering structures.

Study on Excavation-induced Prmeability Changes in Cay Stone Shanpo Jia1,2, a, Weizhong Chen2,b 1 School of Urban Construction, Yang tze University, Jingzhou 434023, China 2 School of Civil and Hydraulic Engineering; Shandong University; Jinan 250061, China aemail:jiashanporsm@163.com, bemail:wzchen@whrsm.ac.cn Key words: Clay stone, Hydro-mechanical coupling, permeability evolution, damage, self-healing Abstract.
According to the engineering geology and layout of the high-level radioactive waste repository, the quasi-3D finite element model is applied for the connecting gallery.
Engineering geology, Vol. 61(2001), p.163-180
Hydro-mechanical coupled creep damage constitutive model of Boom clay, back analysis of model parameters and its engineering application [Ph.D.Thesis].