Showing 561 - 580 results of 748 for search '"groundwater"', query time: 0.06s Refine Results
  1. 561

    Displacement Characteristics of a Deep Excavation in Hangzhou Soft Clay by Yuan Mei, Lu Wang, Dongbo Zhou, Liaoyuan Fu

    Published 2022-01-01
    “…Taking a special-shaped deep foundation pit in Hangzhou soft clay as the research object, the excavation performances, including groundwater level height, axial force, lateral wall, and soil deflection, and ground surface settlement were monitored and summarized based on the data published in the literature on similar excavations in Hangzhou, P. …”
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  2. 562

    Integrated Treatment Technology of Storage-Mining Inclined Goaf under Expressway by Weixing Bao, Zhiwei Ma, Haibo Wang, Jianjun Ren, Yong Huang, Bangwei Liang

    Published 2020-01-01
    “…By comparing the test results of the field and laboratory, the influence of groundwater on the effect of grouting was revealed to reduce the compressive strength of the consolidating objects of the slurry. …”
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  3. 563

    Monitoring Nitrogen Leaching for the Evaluation of the Dutch Minerals Policy for Agriculture in Clay Regions by Dico Fraters, Leo J.M. Boumans, Ton C. van Leeuwen, Wim D. de Hoop

    Published 2001-01-01
    “…On arable farms, about 25% of the N surplus leached to groundwater and tile drainwater, on dairy farms this was about 15%. …”
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  4. 564

    RIVER WATERS HARDNESS VARIATIONS ON THE TERRITORY OF THE REPUBLIC OF TATARSTAN by Asiya T. Gorshkova, Olga N. Urbanova, Natalia V. Bortnikova, Yulia V. Gorbunova

    Published 2020-06-01
    “…In the zone of influence of large reservoirs, created in the territory of the Republic of Tatarstan, a rise in the level of groundwater is observed, changing not only the nature of the underground supply of water bodies of the Republic, but also the quality of river water. …”
    Article
  5. 565

    Heavy Metal Residues in Soil and Accumulation in Maize at Long-Term Wastewater Irrigation Area in Tongliao, China by Yintao Lu, Hong Yao, Dan Shan, Yichen Jiang, Shichao Zhang, Jun Yang

    Published 2015-01-01
    “…The concentrations of Cr, Pb, Ni, and Zn in the wastewater-irrigated area were higher than those in the topsoil from the groundwater-irrigated area. The concentrations of metals in the maize increased as follows: Pb < Ni < Zn < Cr. …”
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  6. 566

    Investigating the Land Subsidence Rate in Tous, Mashhad Plain, Using the DInSAR Technique by roghayeh delaram, samad fotohi, mohsen hamidianpoor, morteza salari

    Published 2024-03-01
    “…The interpolation results using piezometer well statistics show a decrease in groundwater levels in this area and confirm the accuracy of the results.…”
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  7. 567

    Numerical Simulation of Pollutant Transport in Fractured Vuggy Porous Karstic Aquifers by Xiaolin Fan, Shuyu Sun, Wei Wei, Jisheng Kou

    Published 2011-01-01
    “…This paper sheds light on certain features of karstic groundwater are obtained.…”
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  8. 568

    Eggshell Powder as an Adsorbent for Removal of Fluoride from Aqueous Solution: Equilibrium, Kinetic and Thermodynamic Studies by R. Bhaumik, N. K. Mondal, B. Das, P. Roy, K. C. Pal, C. Das, A. Baneerjee, Jayanta kumar Datta

    Published 2012-01-01
    “…These results indicate that eggshell powder can be used as an effective, low-cost adsorbent to remove fluoride from aqueous solution as well as groundwater.…”
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  9. 569

    KEBIJAKAN KETAHANAN PANGAN DI INDONESIA MELALUI PENDEKATAN ANALISIS BIBLIOMETRIC by Delly Maulana, Fikri Habibi, Indra Nizar Purnama

    Published 2024-04-01
    “…While issues that are still rarely studied are food security policies related to land, environmental degradation, food security for households, groundwater use, and public health aspects.  Furthermore, there are several policy strategies to resolve food security issues in Indonesia, namely:  First, the government must make agricultural policies that encourage collaboration between stakeholders, namely the government, companies, farmers, and scientists; Second, there needs to be a policy that encourages the transformation of food technology to create food security, Third, there needs to be a policy to empower people to return to agricultural land, Fourth, there needs to be a policy to overcome agricultural land problems, and Fifth, there needs to be a policy to control food waste.…”
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  10. 570

    The EU Nitrates Directive: A European Approach to Combat Water Pollution from Agriculture by Gert J. Monteny

    Published 2001-01-01
    “…These are regions where the nitrate concentrations in the groundwater amount to 50 mg/l or more. In addition to Codes of Good Agricultural Practice, valid on a countrywide basis and often consisting of voluntary-based measures, specific Action Programmes with mandatory measures have to be developed for the NVZs. …”
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  11. 571

    Application Research of New Cementitious Composite Materials in Saline Soil Subgrade Aseismic Strengthening by Shuai Huang, Yuejun Lyu, Yanju Peng

    Published 2020-01-01
    “…Saline soil affected by earthquakes and groundwater can lead to subgrade subsidence and collapse in highway construction. …”
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  12. 572

    DEVELOPMENT OF THE PLAN OF DISTRIBUTION OF SURFACE WATER RESOURCES FOR RIVER BASINS OF THE NORTH-EASTERN SLOPE OF THE LESSER CAUCASUS by Farda A. Imanov

    Published 2020-10-01
    “…It is also necessary to include groundwater resources and their use in water allocation plan.…”
    Article
  13. 573

    Forecast of brine blowout zones in the Amu Darya basin and analysis of brine blowout in oil and gas fields by Deryaev Annaguly

    Published 2024-01-01
    “…The study examined the geological structure through the assessment of lithological and facies maps and sections, the geochemical content of salts and isotopic composition of waters, and hydrogeological methods, including analysis of groundwater regime and well drilling. The obtained data deepened the understanding of the region’s geological structure and identified potential hydrocarbon concentration zones, which are crucial for further extraction and utilisation of these resources. …”
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  14. 574

    Study on the Durability of Concrete under an Underwater Coupling Environment by Chunhua You, Gen He

    Published 2021-01-01
    “…By preparing 7 kinds of pile foundation concrete samples with different mix proportions, the mechanical properties of concrete with different ages were analyzed under the coupling environment of groundwater. The chloride penetration resistance of concrete was analyzed by the RCM method, and the sulfate corrosion resistance was analyzed by the 17D accelerated simulation test. …”
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  15. 575

    Vertical Electric Sounding of Leachate Contaminant Plumes at a Dumpsite in Obigbo, Rivers State, Nigeria by W. Tamuno, S. Inichinbia

    Published 2020-01-01
    “…The results also revealed that the  surrounding soil and groundwater around the landfill has not been contaminated to depths exceeding 15.6 m, which is shallower than the productive aquifer depth greater than 37.0 m. …”
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  16. 576

    A Novel Multivariate Spectral Local Quasilinearization Method (MV-SLQLM) for Modelling Flow, Moisture, Heat, and Solute Transport in Soil by Elias Mwakilama, Vusi Magagula, Duncan Gathungu

    Published 2023-01-01
    “…Conventionally, the problem of studying the transport of water, heat, and solute in soil or groundwater systems has been numerically solved using finite difference (FD) or finite element (FE) methods. …”
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  17. 577

    Analytical Solution of Seepage Field in Karst Tunnel by Chong Jiang, Han-song Xie, Jia-li He, Wen-yan Wu, Zhi-chao Zhang

    Published 2018-01-01
    “…An analytical solution for the seepage field in water-filled karst tunnel is derived based on the inversion of complex function and groundwater hydraulics theory. The solution considers the distance between the tunnel and the cavern, the size of the cavern, and the properties of the lining structure, such as the permeability coefficient as well as the radius of the grouting ring. …”
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  18. 578

    Public perception of the management of medical B3 waste and wastewater at health centers in Rejang Lebong Regency by Anggreni Dewi, Budihardjo Mochamad Arief, Muhammad Fuad

    Published 2025-01-01
    “…Disposal of wastewater that does not meet quality standards or is not managed into the environment can pollute surface water and groundwater. This study examines public perceptions of the management of medical B3 waste and wastewater at health centers in Rejang Lebong Regency. …”
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  19. 579

    N-Losses and Energy Use in a Scenario for Conversion to Organic Farming by Tommy Dalgaard, Chris Kjeldsen, Nicholas J. Hutchings, Jorgen F. Hansen

    Published 2001-01-01
    “…A pilot scenario was carried out, where predicted changes in N-losses and E-uses following conversion to organic farming in areas with special interests in clean groundwater were compared. The N-surplus and E-use were on average reduced by 10 and 54%, respectively. …”
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  20. 580

    Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield by Na Zhang, Xicheng Wang, Jianmin Zhang, Xiaopeng He, Shaofei Kang, Jingyang Pu, Shuhang Fan, Xu Li

    Published 2022-01-01
    “…The results show that the water types of formation and groundwater are CaCl2 and Na2SO4, respectively. The oil wells produced from Chang 4+5, Chang 6, and Chang 8 reservoir layers in the development of Yanchang group are mainly calcium-based scale (CaCO3 and CaSO4), supplemented by wax deposition scale, corrosion scale, and NaCl and KCl crystal scale. …”
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