<div style="text-align:justify;"> In most cases, copper ore deposits occur at great depths, so the optimization of excavation costs is of utmost importance to identify the most cost effective and produ...<div style="text-align:justify;"> In most cases, copper ore deposits occur at great depths, so the optimization of excavation costs is of utmost importance to identify the most cost effective and productive mining methods, such as block caving or similar methods specifically developed for these deposits. To be able to apply such methods, it is necessary to have a detailed knowledge of the rock mass in terms of its geomechanical, engineering geological and hydrogeological characteristics. This research aims to reduce geological and geotechnical unknowns, analyze in detail the geological environment, and predict geotechnical conditions for the construction of the shaft. This paper uses the example of Borska Reka Copper Deposit, located in Serbia to illustrate the importance of geotechnical investigation to enable best practice in design and construction of shafts that are over 1000 m deep. </div>展开更多
In this review paper,the applications of biomineralization in environmental geotechnics are analyzed.Three environmental geotechnics scenarios,namely heavy metal contamination immobilization and removal,waste and CO_(...In this review paper,the applications of biomineralization in environmental geotechnics are analyzed.Three environmental geotechnics scenarios,namely heavy metal contamination immobilization and removal,waste and CO_(2)containment,and recycled use of industrial byproducts,are discussed and evaluated regarding current trends and prospects.The biomineralization process,specifically the Microbially Induced Carbonate Precipitation(MICP)technology,is an effective solution for immobilizing heavy metals through co-precipitation with calcium carbonate,with successful results in cleaning up contaminated soils.The nature of biomineralization enhances earth material strength and decreases permeability,making it suitable for waste and CO_(2)containment.Additionally,using industrial byproducts in MICP technology can improve the physical,mechanical,and hydraulic properties of earth materials,making it a potential solution for efficient waste utilization.In conclusion,the applications of biomineralization in environmental geotechnics hold great promise for solving various environmental problems.However,further research is needed to better understand the control and consistency of biomineralization processes,the durability of biominerals,the scale of applications,and environmental concerns.展开更多
High level of industrialization of northern regions of Russia cause significant pollution problems in the soil. The new approach based on fuzzy modeling for reception and processing of the geocryological information i...High level of industrialization of northern regions of Russia cause significant pollution problems in the soil. The new approach based on fuzzy modeling for reception and processing of the geocryological information is offered. The technique and methodology of presentation of variables in a logic and linguistic way in a combination to elements of the experimental planning theory is developed. Comparison of the calculated data on model has shown its high adequacy of the experimental data of the various authors. The forecast of geoecological processes in cryolitozone on the basis of the described method will allow increasing reliability of the accepted design decisions.展开更多
文摘<div style="text-align:justify;"> In most cases, copper ore deposits occur at great depths, so the optimization of excavation costs is of utmost importance to identify the most cost effective and productive mining methods, such as block caving or similar methods specifically developed for these deposits. To be able to apply such methods, it is necessary to have a detailed knowledge of the rock mass in terms of its geomechanical, engineering geological and hydrogeological characteristics. This research aims to reduce geological and geotechnical unknowns, analyze in detail the geological environment, and predict geotechnical conditions for the construction of the shaft. This paper uses the example of Borska Reka Copper Deposit, located in Serbia to illustrate the importance of geotechnical investigation to enable best practice in design and construction of shafts that are over 1000 m deep. </div>
基金supported by the Natural Science Foundation of China(42007246)and the Fundamental Research Funds for the Central Universities.
文摘In this review paper,the applications of biomineralization in environmental geotechnics are analyzed.Three environmental geotechnics scenarios,namely heavy metal contamination immobilization and removal,waste and CO_(2)containment,and recycled use of industrial byproducts,are discussed and evaluated regarding current trends and prospects.The biomineralization process,specifically the Microbially Induced Carbonate Precipitation(MICP)technology,is an effective solution for immobilizing heavy metals through co-precipitation with calcium carbonate,with successful results in cleaning up contaminated soils.The nature of biomineralization enhances earth material strength and decreases permeability,making it suitable for waste and CO_(2)containment.Additionally,using industrial byproducts in MICP technology can improve the physical,mechanical,and hydraulic properties of earth materials,making it a potential solution for efficient waste utilization.In conclusion,the applications of biomineralization in environmental geotechnics hold great promise for solving various environmental problems.However,further research is needed to better understand the control and consistency of biomineralization processes,the durability of biominerals,the scale of applications,and environmental concerns.
文摘High level of industrialization of northern regions of Russia cause significant pollution problems in the soil. The new approach based on fuzzy modeling for reception and processing of the geocryological information is offered. The technique and methodology of presentation of variables in a logic and linguistic way in a combination to elements of the experimental planning theory is developed. Comparison of the calculated data on model has shown its high adequacy of the experimental data of the various authors. The forecast of geoecological processes in cryolitozone on the basis of the described method will allow increasing reliability of the accepted design decisions.
