Results 81 to 90 of about 10,115 (288)

CBR test on fibre reinforced silty sand [PDF]

, 2012
Geosynthetic fibres are an established family of geomaterials used in a wide variety of civil engineering applications such as pavement systems. In pavement design, CBR ratio count as an important parameter. This study aims to investigate effect of fibre
Nikraz, Hamid, Chegenizadeh, A
core  

Variable Rate Irrigation: A Long‐Term Simulated and Field Data Analyses of Irrigation Practices, Field Variability, Economic Feasibility and Profitability

Irrigation and Drainage, EarlyView.
ABSTRACT Long‐term economic analyses of variable rate irrigation (VRI) strategies were performed compared with uniform irrigation management (UIM) in a reference production field using the AquaCrop model. Five strategies to trigger irrigation were as follows: (Field Capacity‐VRI, Driest Soil Trigger‐VRI, Water Mining‐VRI, Conventional Uniform ...
Sahil Sharma, Suat Irmak, William Kranz
wiley   +1 more source

Liquefaction Potential of Silty Sand Surrounding A Bucket Foundation Under Vertical Vibration Load

, 2012
To study the liquefaction potential of sand surrounding bucket foundations, centrifuge experiments were carried out. Results have shown that the sand layer around a bucket foundation softens or liquefies under vertical dynamic load when the load ...
Zhang XH(张旭辉), 鲁晓兵, Lu XB(鲁晓兵), Jiao BT(矫滨田)   +3 more
core   +1 more source

Field Studies on the Influence of High‐Voltage Direct Transmission Underground Cables on Soils Along the SuedLink Route in Southwest Germany

Journal of Plant Nutrition and Soil Science, EarlyView.
During regular operation of the SuedLink at a load ≤75 %, the average increase in temperature in the plowing horizon is expected to be less than 1.6°C in the soils along the route in Southwest Germany. ABSTRACT Background The SuedLink was planned as a high‐voltage direct‐current underground cable route. The construction itself is a massive intervention
Joachim Ingwersen, Alexander Schade, Andreas Lehmann, Jonas Trenz, Maja Schreiber, Christoph Drefke, Harald Schramm, Christian Bidlingmaier, Simone Graeff‐Hönninger, Thilo Streck, Karl Wieland   +10 more
wiley   +1 more source

Sewage Sludge and Cashew Bagasse Biochars Promote Changes in Selected Physical Attributes Related to the Structure of Degraded Dryland Soil

Journal of Plant Nutrition and Soil Science, EarlyView.
This study evaluated biochars from co‐pyrolysis of sewage sludge and cashew residues on physical quality of a degraded loamy sand soil. SPB applied at 20 Mg ha−1 reduced bulk density by 7.74%, whereas most porosity attributes were driven by soil reconsolidation rather than biochar. Aggregate stability varied with biochar type, with SPB promoting larger
João Marcos Rodrigues dos Santos, Ícaro Vasconcelos do Nascimento, Gilvanete da Silva Henrique, Tiago da Costa Dantas Moniz, Francisco Luan Almeida Barbosa, Alexandre dos Santos Queiroz, Adriana Guirado Artur, Mirian Cristina Gomes Costa, Helon Hébano de Freitas Sousa, Odair Pastor Ferreira, Laís Gomes Fregolente, Antônio Gomes de Souza Filho, Romildo Lopes de Oliveira Filho, Arthur Prudêncio de Araujo Pereira, Jaedson Cláudio Anunciato Mota   +14 more
wiley   +1 more source

Determination of the equivalent intergranular void ratio - Application to the instability and the critical state of silty sand

EPJ Web of Conferences, 2017
This paper presents an experimental study of mechanical response of natural Camargue silty sand. The analysis of test results used the equivalent intergranular void ratio instead of the global void ratio.
Nguyen Trung-Kien, Benahmed Nadia, Hicher Pierre-Yves   +2 more
doaj   +1 more source

Selecting Promising Soil Quality Indicators for Monitoring Soil Management Effects Based on 10 European Long‐Term Field Experiments

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background: Soil quality can be measured through soil quality indicators that reflect soil processes. Aim: The aim of this study was to (1) identify a limited set of soil quality indicators that are most sensitive to agricultural soil management and that are widely applicable regardless of pedo‐climatic conditions, and (2) link common ...
Giulia Bongiorno, Marie Wesselink, Wim van den Berg, Zhanguo Bai, Ron de Goede, Carla Sofia Santos Ferreira, Luuk Fleskens, Matjaz Glavan, Wiepie Haagsma, Paul Mäder, Alicia Morugan‐Coronado, Harry Verstegen, Zoltan Toth, Wijnand Sukkel, Else K. Bünemann   +14 more
wiley   +1 more source

Experimental study on critical state behavior of unsaturated silty sand under constant matric suctions

, 2022
There are relatively few experimental studies on the hydromechanical and critical state behaviours of unsaturated silty sand. In this paper, suction-controlled, consolidated, drained triaxial shear tests were conducted on silty sand under saturated (net ...
Saman Asreazad (20082348), Annan Zhou (18031723), Jian Li (41607), Chao Liu (43092), Guoqing Cai (740684), Chenggan Zhao (20080323), Bowen Han (1438555)   +6 more
core  

Effects of Biochar and Maize Roots on CO2 Emissions and Microbial Biomass C in Loess Soils

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Refractory substances such as biochar and labile substances such as dead fine and coarse roots play important roles in soil organic matter dynamics and have key ecological functions. However, interactions between these substances have only rarely been studied.
Bernard Ludwig, Isabel Greenberg, Rainer Georg Joergensen   +2 more
wiley   +1 more source

Influence of Backfill Soil on the Uplift Bearing Capacity of Prefabricated Foundations for Temporary Transition Towers

Buildings
In response to the non-reusable nature and prolonged construction period of traditional foundations for temporary and transitional towers, this paper designs a fully reusable all-metal prefabricated foundation for 35 kV–110 kV transmission lines.
Qingyu Meng, Hanyu Ning, Keqin Yan, Shufeng Long, Mengxin Kang   +4 more
doaj   +1 more source