Results 61 to 70 of about 10,115 (288)

Silty sand characterization in the geotechnical centrifuge

, 2020
The geotechnical characterization of soil deposits from piezocone data can be quite challenging when it comes to intermediate soils, like silty sand.
Christensen, Sine Maria, Zania, Varvara, Rocchi, Irene   +2 more
core  

Effect of particle rolling resistance on drained and undrained behaviour of silty sand

, 2021
Published: 04 January 2021This paper explores the effect of particle rolling resistance on the mechanical behaviour of silty sand under various shearing conditions. The elastic–plastic spring–dashpot rolling resistance model was employed, and drained and
Bui, H.H., Bouazza, A., Nguyen, G.D., Phan, Q.T.   +3 more
core   +1 more source

Enhancement of the Plant‐Accessible Phosphate Fraction in Sewage Sludge Ashes by Na+ or K+ Addition Prior to Combustion

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The addition of Na2CO3 or K2CO3 to sewage sludge prior to combustion leads to the production of ashes containing phosphate in the form of buchwaldite‐like phases (Ca(Na/K)PO4). Compared to conventional sewage sludge mono‐ashes, such Na‐ or K‐ashes show greatly increased P‐solubilities and proved to be potent P‐fertiliser materials in greenhouse ...
Lorenz Bier‐Schorr, Viktoria Gräser, Michael Scherer‐Lorenzen, Peter Hajek, Philipp Kurz   +4 more
wiley   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Shear strength of an unsaturated silty sand [PDF]

, 2010
This paper presents a series of direct shear tests performed on a silty sand at three different gravimetric water contents. The soil was sampled from test pits south of Ruedlingen in North East Switzerland, where a landslide triggering experiment was carried out on a 37°-40° steep forested slope through infiltration of extreme artificial rainfall.
CASINI, FRANCESCA, Minder, P, Springman, S.   +2 more
openaire   +2 more sources

Lithfacies and “sweet spot” interval of marine shale in southern Sichuan: A case study of Shuanghe Outcrop in Wufeng-Longmaxi Formation, Changning

Youqicang pingjia yu kaifa, 2022
With the comprehensive application of the photography of full thin section, the optical microscope observation of small thin sections, TOC test, whole rocks X-ray composition test, physical property analysis and the observation of field emission scanning
WANG Hongyan, DONG Dazhong, SHI Zhensheng, QIU Zhen, LU Bin, SHAO Nan, SUN Shasha, ZHANG Surong   +7 more
doaj  

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Static and dynamic behavior of loose sand and silty sand treated with guar and agar gums (Micro and macro study)

Carbohydrate Polymer Technologies and Applications
This study evaluates the impact of guar gum and agar gum on the enhancement of mechanical, shear, and liquefaction resistance properties of loose sand and silty sand.
Parviz Maleki, Mehdi Gharib, Saman Soleimani Kutanaei, Hossein Ghasemnejad, Nima Ranjbar Malidarreh   +4 more
doaj   +1 more source

Types and Changing Trends of Sediments in the Coastal Watersof Shandong Province

Haiyang Kaifa yu guanli, 2022
Based on the survey data of surface sediments in Shandong coastal waters, the temporal and spatial variation characteristics of sediment granularity and its influencing factors were analyzed.
Liping YOU, Yuting ZHAO, Shan SUN, Juan ZHANG, Weili GU, Xiaoxiao DONG, Jiahui LI, Yuanqing MA   +7 more
doaj  

Performance assessment of a potential underground thermal storage facility: Case study of the closed mine Prosper‐Haniel in the Ruhr coal mining area in Germany

Deep Underground Science and Engineering, EarlyView.
This study demonstrates the feasibility of an underground closed‐loop thermal storage facility at a post‐mining site, intended for seasonal heat energy storage. Its principal design shows water flow directions in winter and summer (1, 2), heat pumps (3), an upper water reservoir (4), and connecting pipes (5).
Dmytro Rudakov, Oleksandr Inkin
wiley   +1 more source