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Performance and Economic Evaluation of Ground Heat Exchangers Seok Yoon1,a, Nam Hyun Cho2,b, Gyu Hyun Go3,c Seung Rae Lee4, d 124 Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, South Korea 3 R&D group, Incheon International Airport, Incheon, 424-47, South Korea abusybeeyoon@kaist.ac.kr, bjnh0815@hotmail.com, cgogyu@kaist.ac.kr, dsrlee@kaist.ac.kr Keywords: Ground heat exchanger, Heat exchange rate, Borehole length Abstract.
[3] Park, H, Park, H, S, Lee, S,R and Go, G, H (2012), “Estimation of Thermal Conductivity of Weathered Granite Soils”, Journal of Korean Society of Civil Engineers, Vol. 32, pp. 69-77

Classification of Steel Mine Support Sections as per EC3 Classification Petr Janas1,a, Ivan Kološ1,b* and Roman Fojtík2,c 1Department of Structural Mechanics, Faculty of Civil Engineering, VŠB-TU Ostrava, L.
Podéště 1875/17, Ostrava Poruba, Czech Republic 2Department of Building Structures, Faculty of Civil Engineering, VŠB-TU Ostrava, L.

Video Analysis of Conflict Situations at T-Intersection with Cranked Priority Jan Petru1,a, Vladislav Krivda1,b, Ivana Mahdalova1,c and Vaclav Skvain1,d 1VSB – Technical University of Ostrava, Faculty of Civil Engineering, Department of Transport Constructions, Ludvika Podeste 1875, 708 33 Ostrava-Poruba, Czech Republic ajan.petru@vsb.cz, bvladislav.krivda@vsb.cz, civana.mahdalova@vsb.cz, dvaclav.skvain@vsb.cz Keywords: Intersection, T-Intersection, Conflict Situations, Video Analysis, Road Traffic.
Ostrava: VŠB-TU Ostrava, Faculty of Civil Engineering. 2014 [5] SVEDOVA, Zuzana, Ivana OLIVKOVA and David BARTA.

Elements of pneumatic transport Jarosław Rajczyk1, a, Paweł Helbrych1, b 1Czestochowa University of Technology, Faculty of Civil Engineering, 3 Akademicka Street, 42-218 Czestochowa, Poland ajrajczyk@bud.pcz.czest.pl, bphelbrych@bud.pcz.czest.pl Keywords: pneumatic transport; value of pressure; suction conveyor; systems of the vacuum transport; disintegrative- suction nozzle Abstract.
The schema of the impact of the recoil beam of the air formed with the nozzle of the head on the musty powdery building material [3] In the figure 5 a schema of the head with the disintegrative- suction nozzle, developed with the cooperation with the Department of the Technology of the Building and Material Processes, The Faculty of Civil Engineering of the Częstochowa University of Technology, the construction of this device was reserved in the Patent Office of the Russian Federation (patent № 115340).

Current situation of mountain villages in the city tourism plan is becoming a great concern----take Nanyu village in Shandong as example Yin Bai1, a, Xiaoxiao Xu2, b 1 The School of Architecture and Civil Engineering, Inner Mongolia University of Science & Technology, China 014010 2 The School of Architecture and Civil Engineering, Inner Mongolia University of Science & Technology, China 014010 abyecho007776@163.com, bkabitiancai@163.com Keywords: Mountain village; city tourism plan; spatial characteristic Abstract.

Resistance of Concrete with Surface Treatment against Chemical Deicing Agents CHYLÍK Roman1,a*, TRTÍK Tomáš1,b, FLÁDR Josef1,c and MUSIL Luboš1,d 1Faculty of Civil Engineering CTU Prague, Thákurova 2077/7, 166 29 Prague 6, Czech Republic aroman.chylik@fsv.cvut.cz, btomas.trtik@fsv.cvut.cz, cjosef.fladr@fsv.cvut.cz, dlubos.musil@fsv.cvut.cz Keywords: sandblasting, normal strength concrete, high strength concrete, deicing chemicals, concrete Abstract.
Sandblasting of concrete is mainly used to clean the concrete surface before subsequent repair in civil engineering.

Analysis of the Interaction of Foundation Pit Supporting Structure and Soil Yuqin Feng1,a, Chenxi Liu2,b 1The school of Architecture and Civil Engineering , Inner Mongolia University of Science & Technology, Baotou 014010, China 2Zhuhai Institute of Architectural Design, Zhuhai 519000, China abtfyq@126.com, blcx_1209@126.com Keywords: Foundation Pit, Supporting Structure, Soil Anchor, Soil Pressure Abstract.
This paper analyzes an engineering in an area of China which was processed by vacuum preloading technology in the silt soft soil.
This engineering was used rigid supporting structure technology of piles in row and bolts for large area of deep foundation pit supporting.
Introduction Foundation pit engineering is a very complex system engineering, with a strong regional, comprehensive, practical and risk.
This paper analyzes an engineering in an area of China which is processed by vacuum preloading technology in the silt soft soil.

Wang, "Strength of hollow compressed stabilized earth block masonry prisms," Advances in Civil Engineering, vol. 2019, no.
Zhao, "Analysis on influence of the dispersion degree of PVA fibers on pavement performance of cement-stabilized macadam," Advances in Civil Engineering, vol. 2019, no.
Journal of Civil Engineering, vol. 22, pp. 1-9. https://doi.org/10.1007/s12205-017-1968-9, 2017
Abdeldjebar, "The porosity of stabilized earth blocks with the addition plant fibers of the date palm," Civil Engineering Journal, vol. 6, no. 3, pp. 478-494. https://doi.org/10.28991/cej-2020-03091485, 2020
Liang, "Factors affecting the swelling-compression characteristics of clay in Yichang, China," Advances in Civil Engineering, vol. 2019, no.

The function of the principal stresses with the simple bilinear form will be applied into geotechnical engineering easily.
Proc. of Japan Society of Civil Engineers, 1976, 246: 37-138
Chinese Journal of Geotechnical Engineering, 2001, 23(3): 58-361
China Civil Engineering Journal, 1997, 30(2): 14-26
Proc. of Japan Society of Civil Engineers[C], 1974, 232: 59-70

Noise Influence and Prevention Treatment of Residential Buildings near Highway Tong Zhou1, a, Tao Zhao2,b 1 College of civil engineering and architecture,Hebei University, Baoding, Hebei, 071000, China 2 College of civil engineering and architecture,Hebei University, Baoding, Hebei, 071000, China a tt2004@126.com, bzt2010ss@163.com Keywords: environment engineering, noise prevention treatment, living condition.
Shanxi Architecture, 200 733 (18) [9] Department of Communications Engineering Quality Supervision Station in Zhejiang Province.