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Influence of Grey System Parameter Identification Method on Prediction of Bearing Capacity of Piles Fang Yang1, a, Linzhu Sun2, b, Ziling Xie3, c and Yagang Zhou4, d 1, 2, 3, 4School of Architecture and Civil Engineering, Wenzhou University, Zhejiang, China ayf3077@126.com, blinzhusun@163.com, cxiezl@wzu.edu.cn, dzhouyg@wzu.edu.cn Keywords: model GM (1,1); difference method; optimization method; bearing capacity of overlength pile; prediction Abstract.
Therefore, it has important engineering significance to build a bearing capacity model based on incomplete load - displacement curve, used to predict the ultimate bearing capacity of overlength piles.
By studying the influence of grey system parameter identification method on prediction of bearing capacity of overlength piles, we find that the grey optimization model based on optimization method expands the application scope of the grey difference model and that when the grey optimization model is used to predict the bearing capacity of overlength piles, the prediction accuracy is improved and the predicted values can be used for reference for engineering applications.
Geotechnical Engineering Technique, 2001, (4): 204-207
Theory Development and Practice of Pile Foundation Engineering [M].

Rational Use of Residential Digesters For Sewage Treatment With Carbon Credits Ederaldo Godoy Junior1,3,8, a, José Rui Camargo1,3, b, João Lucio Mariano da Silva4, c, Ricardo Osmar de Jesus5,6, d, José Luz Silveira2,3, e, José Roberto Bertoncello Danieletto5, f 1Departament of Mechamical Engineering of University of Taubate – UNITAU, Brazil 2Department of Energy, State University of São Paulo – Brazil. 3Fellow Productivity and Technology Development in Innovative Extension/National Council for Scientific and Tecnological Development – CNPq, Brazil 4Graduate student in mechanical engineering from the University of Taubate – Brazil. 5Student Master's in mechanical engineering from the University of Taubate – Brazil 6Heineken of Brazil – Jacarei SP – Brazil 7Poly Easy of Brazil – Barueri SP – Brazil 8Canabrava Alcohol Chemical S/A – Campos dos Goytacazes RJ – Brazil.
References [1] Fagundes, M.V.M, Universe of Populations Served by the Program for decontamination of Guanabara Bay, (Master's Thesis in Sanitary Engineering), Federal University of Rio de Janeiro - COPPE / UFRJ, Rio de Janeiro, RJ, 130p., 2003
Nicosia: Civil Defence Organisation Presidency, 2011
[7] VON SPERLING, M., Principles of Biological Wastewater Treatment - Activated Sludge, Vol.4, Belo Horizonte, MG, Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, 416p., 1997.

Limit Analysis of Supporting Pressure for Failure Surface of Deep-Buried Tunnel with Nonlinear Failure Criterion Kan Huang 1,2 and Baochen Liu1, Jianguo Peng2 and Fu Huang 1 1School of Civil Engineering and Architecture, Center South University, Changsha, Hunan Province,China 2Transportation Planning Survey and Design Institute in Hunan Province Changsha, Hunan Province,China hk_616@sina.com , hk_616@sina.com Keywords: deep-buried tunnel, limit analysis, non-linear failure criterion, failure surface, velocity discontinuity curve.
At present, in the field of tunnel engineering, the limit theory is focused on the stability analysis of shallow tunnel excavation surface [5-10], while for the deep-buried tunnel, due to the high stress environment, after excavation, deformation, loosening and collapse of the top rock mass would be limited in a scope.
From the view of engineering practice, smallerm,smaller and larger are good for the stability of surrounding rock on the top of deep-buried tunnel.
Chinese Journal of Rock Mechanics and Engineering, 2004, 23 (19): 3310-3316(in Chinese)
Chinese Journal of Rock Mechanics and Engineering, 2007, 26(9): 1855-1861(in Chinese)

Jabbar2 1Muhammadiyah University of Parepare, Faculty of Engineering, Civil Engineering Study Program, Jl.
Yani KM 6 Kota Parepare, Sulawesi Selatan 2Muhammadiyah University of Parepare, Faculty of Engineering, Electrical Engineering Study Program, Jl.
ITB Indonesia Environmental Engineering S1 Seminar.

Influence of Compaction Energy and Bentonite Clay Content in the Soil Hydraulic Conductivity Osvaldo de Freitas Neto1,a *, Olavo Francisco dos Santos Júnior1,b, Fagner Alexandre Nunes de França1,c and Ricardo Nascimento Flores Severo2,d 1Federal University of Rio Grande do Norte, Center of Technology, Department of Civil Engineering, Av.
Introduction The hydraulic conductivity of soils in some engineering problems must be known by designers and controlled during construction and operation.
Degree of hydraulic conductivity Hydraulic conductivity coefficient [m/s] High > 10-3 Medium 10-3 – 10-5 Low 10-5 – 10-7 Very Low 10-7 – 10-9 Practically Impervious < 10-9 Soils involved in engineering projects are usually subjected to a compaction process in order to improve their geotechnical properties.
They are very important to define some project parameters for the use of a given soil in an engineering project.
Fortes, Engineering Geology, ABGE, São Paulo, 1998 (in Portuguese)

Polymer-Plastics Technology and Engineering, 2007, 46(10-12): 1129-1134
Composites Part B Engineering, 2012, 43(3): 1468–1474
Independent environmental effects on durability of fiber-reinforced polymer wraps in civil applications: A review.
Journal of Engineering Physics &Thermophysics, 2001, 74(6): 1364-1374
Journal of Industrial & Engineering Chemistry, 2012, 18(2): 594-596

Biosorption of Iron (III) from Aqueous Solution using Pleurotus ostreatus Spent Mushroom Compost as Biosorbent Ain Nihla Kamarudzaman1,2,a, Tay Chia Chay3,b, Mohd Faizal Ab Jalil2,c and Suhaimi Abdul Talib1,d 1 myBioREC,Institute for Infrastructure Engineering & Sustainable Management, Faculty of Civil Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia 2School of Environmental Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, 02600 Arau, Perlis, Malaysia 3Faculty of Applied Sciences, Universiti Teknologi MARA (Perlis), 02600 Arau, Perlis, Malaysia aainnihla@unimap.edu.my, btaychiay@gmail.com, cfaj@doe.gov.my decsuhaimi@salam.uitm.edu.my Keywords: Biosorption; Iron (III) removal; Pleurotus ostreatus spent mushroom compost Abstract.
Williams, Tea waste as a low cost adsorbent for the removal of Cu and Pb from wastewater, Chemical Engineering Journal, Vol. 132 (2007), p. 299–309
Calero, Copper biosorption by pine cone shell and thermal decomposition study of the exhausted biosorbent, Journal of Industrial and Engineering Chemistry, (2012)

Identification and Preliminary Classification of Critical Buildings in an Urban Context: A Combined Approach with DInSAR Satellite Measurements and Hierarchical Clustering HAMZAOUI Yassir1, a, CIVERA Marco1,b*, MIANO Andrea2,c, BONANO Manuela3,d, PROTA Andrea4,e and CHIAIA Bernardino1,f 1Department of Structural, Building and Geotechnical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy 2Department of Engineering, Telematic University Pegaso, Centro Direzionale Isola F2, 80143 Naples, Italy 3Consiglio Nazionale delle Ricerche (CNR) - Institute for Electromagnetic Sensing of the Environment, Via Diocleziano 328, 80124, Naples, Italy 4Department of Structures for Engineering and Architecture, University of Naples “Federico II”, Via Claudio 21, 80125 Naples, Italy as317524@studenti.polito.it, bmarco.civera@polito.it, candrea.miano@unipegaso.it, dbonano.m@irea.cnr.it, ea.prota@unina.it, fbernardino.chiaia@polito.it Keywords: Differential Interferometric
Introduction Satellite-based SHM is an emerging research field that is increasingly capturing structural engineers' interest.
Acknowledgements This work was supported by the I-AMICA (PONa3_00363) project, the research agreement between the Italian Civil Protection Department (DPC) and IREA-CNR, the RELUIS 2019–2022 project, and the PNRR project CN MOST SPOKE 7 - WP4 " Resilience of networks, structural health monitoring and asset management”.
Talledo et al., “Satellite radar interferometry: Potential and limitations for structural assessment and monitoring,” Journal of Building Engineering, vol. 46, p. 103756, Apr. 2022, doi: 10.1016/J.JOBE.2021.103756

The comparison and analysis of void fraction of OGFC-13 asphalt concrete through vacuum method and volume method TANG Chengyang1,a, YI Wen 1,b*, HE Xianfeng 2c,TAN Li1d 1College of Civil Engineering and mechanics , Central South University of Forestry and Technology, Changsha, Hunan, China 2Changsha Municipal Highway Administrative Bureau , Changsha, Hunan, China a694845040@qq.com, byiwengangbiao@163.com, c593107983@qq.com, d649384215@qq.com Keywords: OGFC-13 asphalt mixture, vacuum sealing method, volume method, Linear relationship Abstract.
Experimental methods The provisions of the OGFC-13 gradation range of “technical specification for construction of highway asphalt pavement” (JTG F40-2004) as the engineering design gradation range, and based on full reference the successful experience of the similar engineering, 13% of 2.36 mm mesh pass rate is taken as the median.
The related tests are carried out according to “highway engineering asphalt and asphalt mixture test procedures” (JTG E20-2011), and these main technical indicators are all meet the specification requirements.
The tests are done according to “Test methods of aggregate for Highway Engineering” (JTG E42-2005) and the test results also meet the standard requirements.

Horizontal Distribution of Salinity in the Estuary of Palu River ADI Sucipto1,a*, MUHAMMAD ARSYAD Thaha2,b, MUKHSAN Putra Hatta2,c FAISAL Mahmuddin3,d 1Doctoral Student, Civil Engineering Departement, Faculty of Engineering, Hasanuddin University, Jl.
Poros Malino, Borongloe, Bontomarannu, Gowa Regency, South Sulawesi, 92171, Indonesia 2Civil Engineering Departement, Faculty of Engineering, Hasanuddin University, Jl.
Poros Malino, Borongloe, Bontomarannu, Gowa Regency, South Sulawesi, 92171, Indonesia 3Naval Architecture Departement, Faculty of Engineering, Hasanuddin University, Jl.