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Lucyna Florkowska

Abstract

Issues concerning protection of buildings against the impact of underground coal mining pose significant scientific and engineering challenges. In Poland, where mining is a potent and prominent industry assuring domestic energy security, regions within reach of mining influences are plenty. Moreover, due to their industrial character they are also densely built-up areas. Because minerals have been extracted on an industrial scale in majority of those areas for many years, the rock mass structure has been significantly disturbed. Hence, exploitation of successive layers of multi-seam deposits might cause considerable damage - both in terms of surface and existing infrastructure networks. In the light of those facts, the means of mining and building prevention have to be improved on a regular basis. Moreover, they have to be underpinned by reliable analyses holistically capturing the comprehensive picture of the mining, geotechnical and constructional situation of structures. Scientific research conducted based on observations and measurements of mining-induced strain in buildings is deployed to do just that.

Presented in this paper examples of damage sustained by buildings armed with protection against mining influences give an account of impact the mining exploitation in disturbed rock mass can have. This paper is based on analyses of mining damage to church and Nursing Home owned by Evangelical Augsburg Parish in Bytom-Miechowice. Neighbouring buildings differ in the date they were built, construction, building technology, geometry of the building body and fitted protection against mining damage. Both the buildings, however, have sustained lately significant deformation and damage caused by repeated mining exploitation.

Selected damage has been discussed hereunder. The structures have been characterised, their current situation and mining history have been outlined, which have taken their toll on character and magnitude of damage. Description has been supplemented with photographic documentation.

Open access

Remigiusz Duszyński, Angelika Duszyńska and Stefan Cantré

Abstract

The supporting structure inside a coastal dike is often made of dredged non-uniform sand with good compaction properties. Due to the shortage of natural construction material for both coastal and river dikes and the surplus of different processed materials, new experiments were made with sand-ash mixtures and fine-grained dredged materials to replace both dike core and dike cover materials resulting in economical, environmentally friendly and sustainable dikes. Ash from EC Gdańsk and dredged sand from the Vistula river were mixed to form an engineering material used for dike construction. The optimum sand-ash composites were applied at a field test site to build a large-scale research dike. Fine-grained dredged materials from Germany were chosen to be applied in a second full-scale research dike in Rostock. All materials were investigated according to the standards for soil mechanical analysis. This includes basic soil properties, mechanical characteristics, such as grain-size distribution, compaction parameters, compressibility, shear strength, and water permeability. In the field, the infiltration of water into the dike body as well as the erosion resistance of the cover material against overflowing water was determined. Results of both laboratory and field testing are discussed in this paper. In conclusion, the mixing of bottom ash with mineral soil, such as relatively uniform dredged sand, fairly improves the geotechnical parameters of the composite, compared to the constituents. Depending on the composite, the materials may be suitable to build a dike core or an erosion-resistant dike cover.

Open access

Youcef Mahmoudi, Abdellah Cherif Taiba, Leila Hazout, Wiebke Baille and Mostefa Belkhatir

Abstract

The instability of saturated granular soils in field conditions generates drastic collapse in terms of runoff deformation because of its failing to sustain naturally applied loading conditions such as earthquakes, wave actions and vibrations. The objective of this laboratory investigation is to study the effects of the depositional methods, overconsolidation ratio (OCR) and confining pressure on the undrained instability shear strength of medium dense (Dr = 52%) sand–silt mixtures under static loading conditions. For this purpose, a series of undrained monotonic triaxial tests were carried out on reconstituted saturated silty sand samples with fines content ranging from 0% to 40%. Three confining pressures were used (P’c = 100, 200 and 300 kPa) in this research. The sand–silt mixture samples were prepared using two depositional methods, dry funnel pluviation (DFP) and wet deposition (WD), and subjected to two OCRs (1 and 2). The obtained instability lines and friction angles indicate that the funnel pluviated samples exhibit strain hardening compared to the wet deposited samples and that normally consolidated and overconsolidated wet deposited clean sandy samples were very sensitive to static liquefaction. The test results also indicate that the instability friction angle increases with the increase in the OCR expressing soil dilative character tendency increase. The instability friction angle decreases with the increase in the fines content for DFP and the inverse tendency was observed in the case of WD.

Open access

Mieszko Kużawa and Jan Bień

2011. [11] Sustainable Bridges (2007), Guideline for Load and Resistance Assessment of Railway Bridges, Integrated Research Project “Sustainable Bridges - Assessment for Future Traffic Demands and Longer Lives”, www.sustainablebridges.net (04.04.2015 r.). [12] WITKOWSKI W., Synthesis of the formulation of nonlinear mechanics of shells subject to finite rotations in terms of FEM, (in Polish), Monograph 111, Gdańsk University of Technology Publishing House, Gdańsk 2011. [13] ZIENKIEWICZ O.C., TAYLOR R.L., The Finite

Open access

Dorota Mirosław-Świątek

-361. [13] TROCH P.A., PANICONI C., McLAUGHLIN D., Catchment-scale hydrological modeling and data assimilation , Advances in Water Resources, 2003, 26, 131-135. [14] ŚWIĄTEK D., The Data Assimilation for Unsteady 1D Open Channel Flow Model , 33rd IAHR Congress Proceedings Water Engineering for a Sustainable Environment , Vancouver, 9-14.08.2009. [15] SZYMKIEWICZ R., Modelowanie matematyczne przepływów w rzekach i kanałach , PWN, Warszawa 2000. [16] ŻUREK S., Geomorfologia Pradoliny Biebrzy , [in:] Bagna Biebrzańskie

Open access

Michał Suska and Wojciech Puła

-7198. [23] SOBOL I., Theorems and examples on high dimensional model representation, Reliability Engineering and System Safety, 79, 2003, 187-193. [24] BAROTH J., BREYSSE D., SCHOEFS F. (eds.), Construction Reliability. Safety, Variability and Sustainability, Wiley, 2011.

Open access

Julian Matthew Watson, Abouzar Vakili and Mateusz Jakubowski

-stress conditions, Proceedings Second Australasian Ground Control in Mining Conference, 23-24 November 2010, pp. 247-254, Sydney, New South Wales, Australia, The Australasian Institute of Mining and Metallurgy. [21] TRIFU C., SUORINENI F., Use of microseismic monitoring for rockburst management at Vale Inco mines, [in:] C. Tang (Ed.), Controlling Seismic Hazard and Sustainable Development of Deep Mines, Rinton Press, New York 2009, 1105-1114. [22] VAKILI A., An improved unified constitutive model for rock material and a guideline for its

Open access

Lamri Dahoua and Fakhridine Boymatov

. Advances in Science, Technology & Innovation (IEREK Interdisciplinary Series for Sustainable Development). Springer, Cham. Dahoua L. Yakovitch S.V. Hadji R. Farid Z. 2018 Landslide susceptibility mapping using analytic hierarchy process method in BBA-Bouira Region, case study of East-West Highway, NE Algeria Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions Edited by A. Kallel, M. Ksibi, H. Ben Dhia, N. Khélifi. EMCEI 2017. Advances in Science, Technology & Innovation (IEREK Interdisciplinary Series for

Open access

M. Bartlewska-Urban and T. Strzelecki

. References [1] Abkenar S., Stanley S., Miller C., Chase D., McElmurry S. (2015). Evaluation of genetic algorithms using discrete and continuous methods for pump optimization of water distribution systems, Sustainable Computing: Informatics and Systems, Volume 8, Pages 18-23, Abkenar S. Stanley S. Miller C. Chase D. McElmurry S. 2015 Evaluation of genetic algorithms using discrete and continuous methods for pump optimization of water distribution systems Sustainable Computing: Informatics and Systems 8 18 23 [2] Anderson-Cook C. (2012) Practical Genetic Algorithms

Open access

Tadeusz Majcherczyk, Zbigniew Niedbalski and Łukasz Bednarek

South African Institute of Mining and Metallurgy 98 7 353 – 363 [12] Rotkegel, M. (2013). ŁPw steel arch support – Designing and test results. Journal of Sustainable Mining 12(1) 34-40. 10.7424/jsm130107 Rotkegel M. 2013 ŁPw steel arch support – Designing and test results Journal of Sustainable Mining 12 1 34 – 40 [13] Zhang, W., Zhang, D., Xu, M. (2013). Fast drivage technology for large sections of deep coal-rock roadway in complicated geological conditions. Electronic Journal of Geotechnical Engineering 13, 1939-1950. Zhang W. Zhang D