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Experiment Study on Reinforcement Effect of Composite Foundation in Saline Soils Yu Zhang 1,2,a, Jian-kun Liu 2,b , Jian-hong Fang 3,c, An-hua Xu 3,d 1 Lanzhou Jiaotong University, School of Traffic and Transportation，GanSu Lanzhou 730070 2 Beijing Jiaotong University, School of Civil Engineering, Beijing 100032 3 Qinghai Research Institute of Transportation, QingHai Xining 810001) azhangyu@mail.lzjtu.cn,b jkliu@bjtu.edu.cn,c qgygls@163.com,dxh6155288@sina.com Keywords: saline soils; gravel piles; dynamic compaction; dynamic compaction replacement (DCR); impact compacted; field experiment.
Numerous scientists and engineers have obtained useful results and experience from DCR and gravel piles foundation treatment of soft soil [1,2,3,4].
The salt crystals in saline soil have dissolved corrosive and strong melt sinking features, engineering geological properties of lower and unfavorable natural foundation.
Harris: Ground improvement Géotechnique, V 58, Issue 5, p. 399 –404 (2008) [2] Dong Wei,Yan Shuwang, Feng Shouzhong and Yan, Fusheng,: Study on dynamic compaction replacement for reinforcing freeway roadbed in wetlands Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, v 28, n SUPPL. 1, p 2966-2972(2009) [3] Huang, Xiao-Bo,Zhou, Li-Xin, He Shu-Jun and Zhou Hu-Xin: Study on test of saline soil ground treatment with the soaking and dissolving combined dynamic compaction method Yantu Lixue/Rock and Soil Mechanics, v 27, n11, p 2080-2084, (2006) [4] Liu Jiankun, Zeng Qiaoling and Hou Yongfeng, in: Subgrade Engineering, China Building Industry Publishers (2006) [5] (GB50021-2001)Code for Geotechnical Engineering Investigation, The People's Republic of China Ministry of Construction (2002)
Chinese Journal of Geotechnical Engineering, v 33, n SUPPL. 1, 251-254 (2011)

Discussion of Goaf Critical Depth Calculation Methods under Freeway Aibing Jin1, a, Xiaojuan Lei1, b, Jinhai Sun1, c 1 School of the civil and environmental engineering, USTB, Beijing, China ajinaibing@ustb.edu.cn, bleitiantian1988@163.com, csunjinhai@vip.sina.com Keywords: critical depth, goaf, calculation methods, freeway Abstract.
The critical depth calculation method can reduce the engineering quantity of goaf treatment.
Engineering example The second contract section of Cheng Tang freeway have five goaf that affected operations of freeway.
Liu, et al: Chinese Journal of Rock Mechanics and Engineering.
Qiu, et al: Chinese Journal of Rock Mechanics and Engineering.

The inspection robots will be able to estimate the damage condition without any process of engineers’ on-site-inspection involved.
Several reason for this fact are : (1) It is not very easy for engineers to access the ceiling because of its altitude; (2) certain stage is needed to be constructed to inspect the damage; (3) The connections of ceiling components are inside of ceiling and covered by ceiling boards.
The inspection robots will be able to estimate the damage condition without any process of engineers’ on-site-inspection involved [8 - 15].
Nagayama, Smart Wireless Technology for Structural Health Monitoring of Civil Structures, Steel Structures, 8, pp.267-275 (2008) [2] S-C.
Kimura, K.Makabe, F.Matsuno , S.Tadakoro and K.Kon, Use of Remotely Operated Marine Vehicles at Minamisanriku and Rikuzentakata Japan for Disaster Recovery, Proc. of the 2011 IEEE International Symposium on Safety, Security and Rescue Robotics, 19-25 (2011) [9] D.R.Huston, J.Miller and B.Esser, Adaptive, Robotic, and Mobile Sensor Systems for Structural Assessment, Proc. of SPIE 5391, CD-ROM (2004) [10] T.Harada, and K.Yokoyama, Development of bridge inspection system by using wireless network technologies, Proc. of the 4th International Workshop on Advanced Smart Materials and Smart Structures Technology, 221-226 (2008) [11] D.Mascarenas, E.Flynn, M.Todd, G.Park, and C.Farrar, Wireless sensor technologies for monitoring civil structures, Sound and Vibration, 42(4), 16-20 (2008) [12] S.G.Taylor, K.M.Farinholt, E.B.Flynn, E.Figueiredo, D.L.Mascarenas, E.A.Moro, G.Park, M.D.Todd, and C.R.Farrar, A mobile-agent Based Wireless Using Sensing Network for Structural Health Monitoring Application

Bester1,c 1Department of Civil Engineering Science, University of Johannesburg, South Africa; adkruger@uj.ac.za bneil.herbst@avengrail.com cjannesb@uj.ac.za Keywords: Polymer emulsion, patch repair mortar, crack formation, setting time, compressive strength.
With millions of square meters of ageing exposed concrete surfaces throughout the world, concrete patch repair is becoming a major component of the civil construction industry.

Analysis on construction delay of suburban roads Yanting Ma1,a, Chunjie Ma2,b 1,2Institute of civil engineering, Zhejiang University, Hangzhou, China atina.margaret@163.com, b13905742430@139.com, Keywords: Suburban roads, Construction delay, Risk factors, Countermeasures Abstract.
So it’s essential to reduce or avoid the time-delay events, make the engineering complete on schedule or ahead of time, and let the suburban roads play the actual functions as early as possible.
For complex and persistent impact event, supervision engineers should make temporary extension decision to avoid unnecessary losses.
Analyses and thinking on municipal engineering construction delay[J].
Construction delay events control of supervision engineer [J].

Appropriate ecological strategies for rammed earth wall traditional dwellings Zhuhui Zhang 1,a, Tao Feng 2,b and Wenyan Pan 3,c 1Engineering College of the Chinese People's Armed Police Force, Xi'an,china,710086 2College of Architecture & Art Design, Henan Polytechnic University, JIaoZuo,China,454000 3 School of Civil Engineering, Henan Polytechnic University ,Jiaozuo, china,454000 azhang_zhuhui@sina.com, bfentao@hpu.edu.cn, cpanwy@139.com Keywords: Traditional residential dwellings, Ecological architectural experiences, Thermal performance design, Appropriate ecological strategies for traditional houses, Strategies of architectural design Abstract:The article is based on the investigation of traditional dwellings in Guanzhong region.
The " Code for thermal design of civil buildings " (GB50176-93) provides that, objective indoor comfort temperature is between 18 ˚C to 24 ˚C, which is the basic objectives to maintain indoor comfortable. the indoor temperature of brick houses is far below than comfortable temperature requirements.
Xi’an: Xi’an Jiaotong University Press, 1991(In Chinese) [5] National Standard of the People’s Republic of China GB50176-93,Thermal design code for civil building.Beijing: The Plan press of China, 1993(In Chinese) [6] Xiande Lin.

., are widely used in industrial and civil buildings.
Wall and roof insulation performance results Table 5 Wall and roofing type D value RO（m2·k/m） Maximum temperature Energy saving wall 4.46 1.359 34.5 Energy-saving slope roof 3.25 1.732 35.9 Energy-saving flat roof 3.24 1.431 35.6 Thermal resistance according to the civil thermal design specifications, building walls, roofs pass to meet energy-saving design requirements; west exterior wall surface maximum temperature to meet θi • max ≤ te • max, from Table VI shows that the test floor meet insulation, heat insulation design requirements.
Conclusions (1) A7.5 B07 lightweight, high strength fly ash aerated concrete block is an ideal new wall materials, with significant social benefits, testing and engineering application, to determine the optimum mixture ratio of aerated concrete A7.5 B07 fly ash: lime: cement: gypsum = 70:18:8:4
[2] Civil thermal design specifications,GB50176-1993 Administration of Quality Supervision, Inspection and Quarantine

Results of Experimental Investigations of Reinforced Concrete Wall Elements According to the Standard Temperature Mode of Fire PEREHIN Alina1,a*, NUIANZIN Oleksandr1,b, BORYSOVA Anna2,c, NUIANZIN Vitalii1,d 1National University of Civil Defence of Ukraine, 94 Chernyshevska street, Kharkiv, Ukraine, 61023 2Institute of Public Administration and Research in Civil Defence, 21 Vyshhorodska street, Kyiv, Ukraine, 04074 aalinayanish23@gmail.com, balexandrnuyanzin@gmail.com, сborysova_anna@ukr.net, dnuyanzin@gmail.com Keywords: method, test, small fragment, compact fire installation, reinforced concrete wall, experimental study, temperature, Fisher's test, reproducibility of experimental data.
This test was conducted on the basis of the Training complex of practical training of specialists of the Operational and Rescue Service of Civil Protection Service of ChIFS named after Chornobyl Heroes of NUCD of Ukraine.
In IOP Conference Series: Materials Science and Engineering, 708 1 (2019) 012063

Aromatic polybenzoxazoles (PBOs) are very promising materials for civil, aerospace and electronics industries due to their outstanding mechanical properties, good thermooxidative stability and chemical resistance.
Macromolecular Materials Engineering Vol. 288 (2003), pp.823-843

The deepest settlement locates on 162m of shield engineering axis.
They are the beginning of engineering, the time when the shield though the standby tunnel and the ending of engineering.
The manual of municipal engineering in soft soil (Shanghai Municipal Engineering Management Bureau, Shanghai 1990)
China Civil Engineering Journal.
Chinese Journal of Geotechnical Engineering,Vol.28(2006),p:1277-1282