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Introduction One reason for the premature failure of asphalt pavement structure is due to rainwater through pavement seams,cracks and segregation of the road into the internal structure,this will form hydrodynamic pressure under vehicle load and scour pavement structure then reduce the performance of the pavement[1,2].To eliminate early water damage,at home and abroad in the design of the pavement structure set internal drainage system[3,4].At present commonly used permeable base materials are cement treated aggregate and porous cement[5].Porous concrete also be called macroporous concrete or porous lean concrete.As a new base drainage material,compared with cement treated aggregate,porous concrete has higher cement content,none or less fine aggregate,higher strength and permeable ability[6].To study the construction technology of porous concrete permeable base and the using effect,the paper is based on southwest beltway Luohebei interchange ramp project in Luoyang,Henan,which paves test
The pavement structure and drainage base edge structure design as shown in Figure 1.Materials in gullies and base are the same,the are all porous concrete and with same mix.The longitudinal manifold using 10 cm in diameter of the strong permeable tube,and its longitudinal grade should be same with the route longitudinal gradient,not less than 0.25%.At the same time, PVC horizontal pipe spacing of about 50m settings without holes, the diameter is same with water collecting pipe,and water collecting pipe gradient should not less than 5%.The tack coat and prime coat use the same material with production sections.And set up seal coat between porous concrete permeable base and cement stabilized soil.
Fig. 1 Schematic diagram of pavement structure and permeable base’s drainage system’s edge structure Mix design of porous concrete Specifications of raw material Aggregate On account of porous concret with low cement content,and it belongs to the open graded skeleton void structure,The entire structure’s weakest strength depends on the the bonding strength between cement and aggregates.So the aggregate shall be hard and clean, crushing value should below 30%,mud content is within 1%,and the acicular content is not more than 15%.In the test section The aggregates under construction are into 10 ~ 20mm and 5 ~ 10mm two section,these technical indexes as indicated in Table 1, and meet the requirements of specification.
In actual construction,the mix should be adjusted according to the material water content.
[5] Zhen Munian,Wang Bingang,Hu Changshun.Composition design and pavement performance of porous concrete.Journal of chang 'an university（JCR Science Edition）[J]，2003, 23(4):6-10 [6] Zhen Munian,Xu Jiangping,Wang Bingang.Construction and detection of porous concrete permeable base.Highway[J],2003(4):56-61 [7] Luoyang Southwest Beltway LLC etc.porous concrete permeable base applied research in High grade highway asphalt pavement[R].Henan:zhengzhou,2005.

BABAKHANI, INNOVATIVE PROCESSING OF POROUS COPPER COMPOSITE BY CHEMICAL REACTION, PROCEEDINGS OF ISRS-08 ON METALLURGY, MATERIALS SCIENCE AND ENGINEERING, 25-31
SARITAS, RHEOLOGICAL PROPERTIES OF FEEDSTOCKS PREPARED WITH STEATITE POWDER AND POLYETHYLENE-BASED THERMOPLASTIC BINDERS, JOURNAL OF MATERIALS PROCESSING TECHNOLOGY. 152 (2004) 77-83
WEBER, POWDER METALLURGICAL TECHNOLOGY FOR THE PRODUCTION OF METALLIC FOAMS, PROCEEDINGS OF THE EUROPEAN CONFERENCE ON ADVANCED PM MATERIALS (1995) 201-208
ZHAO, MECHANICAL RESPONSE OF POROUS COPPER MANUFACTURED BY LOST CARBONATE SINTERING PROCESS, MATERIALS SCIENCE FORUM. 539-543 (2007) 1863-1867
KHOR, CHARACTERIZATION OF POWDER INJECTION MOLDING FEEDSTOCK, MATERIALS CHARACTERIZATION. 49 (2003) 313-320.

Study on preparation and the setting time of Magnesium Phosphate Cement Runqing Liu 1, a, Dingqiang Chen 1, b, Tianbo Hou 2, c 1 College of materials science and engineering, Shenyang Ligong University, Shenyang, 110159, China 2 College of materials science and engineering, Shenyang Jianzhu University, Shenyang, 110168, China aEmail: 19712664@qq.com, bEmail: 764817649@qq.com, cEmail: 121054947 @qq.com Keywords: MPC; Orthogonal experiment; Preparation; The setting time Abstract.
However, the present study don’t focus on the setting time of the best ratio of the raw materials of MPC and changing the content and types of the raw material further to obtain longer setting time of MPC.
This paper mainly studies the characteristic of the raw materials and changes the content to obtain the longer setting time of MPC.
Functional Materials, 2012,43 (15):2065-2070
Journal of Building Materials, 2012,15（1）:131-134

Comprehensive Evaluation Based on AHP-Fuzzy about the Conception of Underground Container Transportation Lines in Shanghai Cheng Zhang 1,a , Siwei Wang 2,b 1PLA university of science and technology, Nanjing, Jiangsu 210007,China 2Wuhan university of science and technology, Wuhan, hubei 430000,China a20399832@QQ.com, bcherishwsw@126.com Keywords: AHP-Fuzzy, Underground container transportation line, Evaluation, Index.
Logistics & material handling
Logistics & material handling
Journal of Wuhan University of Technology(Transportation Science & Engineering), vol.31, pp.243—246
Journal of Wuhan University of Technology(Transportation Science & Engineering), vol.29, pp. 631—633

Numerical Study on effects of Molten Steel Flow about different Blowing Argon Position in Ladle Furnace Yisheng Chen1,a, Yunji Pang 2,b, Xiaoguang Zhang 3,c 1Inner Mongolia University of Science and Technology, Baotou, China 2Inner Mongolia University of Science and Technology, Baotou, China 3 Baotou Iron and Steel (Group) Co.
Molten steel flow is studied by some research institution, such as Northeastern university[1,2], Chinese Academy of sciences[3,4], University of Science & Tecnology Beijing, Inner Mongolia University of Science & Technology[6,7], and other institutes[5].
Table.1 Physical dimension of the ladle furnace interior diameter (mm) outside diameter (mm) Hight (mm) Hight of liquad surface (mm) diameter of Blowing Argon (mm) 3569 4089 4600 2700 250 Table.2 The physical properties of materials Density of Steel Liquid (kg/m3) Viscosity of Steel Liquid (Pa·s) Density of Ar (kg/m3) argon flow rate (L/min) 7000 6.3×10-3 1.25 100-1000 Model Hypothesis.
Journal of Baotou University of Iron and Steel Technology.Vol 22.16-20(2003) (in chinese) [7] CHEN Yisheng, HE Youduo, HUANG Zongze,etal.
Journal of Baotou University of Iron and Steel Technology.Vol 23.296-299(2004) (in chinese) [8] Castillejos A H, Brimacombe J K.Mweasurement of physical characteristics of bubble in gas-liquid plumes: Part Ⅱ.

Shen2 1School of Mechanical & Power Engineering, Harbin University of Science and Technology, Harbin 150080, China 2School of Applied Sciences, Harbin University of Science and Technology, Harbin 150080, China azhangyuan1966@163.com, bliuqianglink@163.com, claolang1218@126.com Keywords: exoskeleton, structure design, kinematics, master-slave control, motion simulation Abstract.
Driving mode, mechanical structure of the exoskeleton, material strength, determine the overall performance of the exoskeleton to a large extent.
Acknowledgements This work was financially supported by the Natural Science Foundation of Heilongjiang Province, China (Grant No.
WANG, “Interactive Rehabilitation Exercise Control Strategy for 5-DOF Upper Limb Rehabilitation Arm” CHINESE JOURNAL OF MECHANICAL ENGINEERING, VOL.44(9) ,(2008),p.169-176 [5] Q.L.
WANG, Journal of Harbin Engineering University,VOL.30(2),(2008),p. 166-170（in Chinese） [7] L.X.ZHANG, L.Y, ROBOT, VOL.33(5),(2011), p.585-591（in Chinese) [8] Y.Yong, W.Y.

Experimental Materials.
Acknowledgment This work was supported by National Natural Science Foundation of China (51163009), Yunnan Social Development Project (2007CA020), and Yunnan Natural Science Fund (2009CD031).
Vol. 120(2002), P. 191-200 [2] Yanbo Wu, Guangshun Liu and Baojun Zhang: Journal of Dalian Jiaotong University (in Chinese).
Vol. 2(2003), P. 67-70 [5] Wei Ding, Yanqiu Zhang and Tao Yu: Chinese Journal of Colloid and polymer (in Chinese).
Beijing, Science Press (2005)

Digital Method for Acquiring Discontinuity 2D Density Based on 3D Digital Traces Model Jian Zheng1, Yangsong Zhang1,*, Xiaozhao Li2, Xingxi Shi1 1Department of Civil Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China 2School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210093, China *Corresponding author.
Acknowledgements This research presented in this paper has been supported jointly by State Administration of National Defense Science and Technology Industry (Department Two-2012-491) and National Natural Science Foundation (NNSF) of China (40872172).
Chinese Journal of Rock and Mechanics and Engineering, 2013, 32(S1): 2624-2631.
Applied Mechanics and Materials, 2014, 638-640: 2141-2145
International Journal of Rock Mechanics and Mining Sciences, 1984, 21: 345-347

And put forward the strategy of sustainable development, stable development of grain production in Jilin Province, and provide a theoretical basis for related departments to make decision. 1 Materials and methods 1.1 Overview of the study area Jilin province is located in the northern part of northeast china.
Resources Science, 2004, 26(4): 119-125
Resources Science, 2009,31(2): 295-302
Journal of Jilin Agricultural University, 2012, 34(6):688-691,704
Journal of South China Agricultural University, 2013,34(4):484-488

Materials and Methods The Zhuli section (36°52′07″N, 119°24′29″E, 74.2m a.s.l.) is located in the southwest of Qianbuxia village, 3-km west of Zhuli county in Weifang city.
Li: Chinese Science Bulletin , Vol. 48 (2003), p. 83.
Jin: Earth and Planetary Science Letters, Vol. 369-370 (2013), p. 271
Chen: Journal of Arid Land, Vol. 3 (2011), p. 184 [15] W.G.
Wang: Journal of Desert Rearch, Vol. 295-301(31), p. 295 (in Chinese) [17] Z.P.