Results 21 to 30 of about 58,569 (298)

Comprehensive experimental study on prevention of land subsidence caused by dewatering in deep foundation pit with hanging waterproof curtain [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2015
Land subsidence caused by dewatering of deep foundations pit has currently become the focus of prevention and control of land subsidence in Shanghai. Because of the reliance on deep foundation dewatering pit projects, two comprehensive test sites were
T. L. Yang   +14 more
doaj   +1 more source

Effect of OP/TX emulsifiers on the effectiveness of pressurised dewatering of coal slurry and the structure of the filter cake

open access: yesMeitan kexue jishu, 2023
The effect of two surfactants, octylphenol ethoxylate (OP-10) and nonylphenol ethoxylate (TX-10), on the pressurised dewatering of coal slurry, was investigated by using a new intelligent monitoring test device designed independently to monitor the ...
Chen ZHANG   +5 more
doaj   +1 more source

Study on screening performance and parameter optimization of vibrating-dewatering screen

open access: yesAdvances in Mechanical Engineering, 2021
In this paper, the dewatering and screening process of vibrating-dewatering screen is studied by the combination of simulation test and physical experiment.
Zhanfu Li   +4 more
doaj   +1 more source

Impact of Conditioning Substances and Filtration Pressure on Dewatering Efficiency of Sewage Sludge

open access: yesEnergies, 2021
Sludge dewatering is a key element in sludge’s processing and management. Solid-phase separation, sludge volume reduction and the separation of a high-quality supernatant are the main tasks of the dewatering devices.
Tomasz Kamizela, Mariusz Kowalczyk
doaj   +1 more source

Test and Analysis of Sludge Dewatering with a Vacuum Negative Pressure Load at the Bottom of Full Section

open access: yesAdvances in Civil Engineering, 2020
At present, the sludge production has increased sharply, and sludge treatment remains a serious problem. Rapid sludge dewatering is the key problem of sludge treatment, and the main approach for reducing the cost of the sludge treatment is to reduce the ...
Yongzheng Qi   +8 more
doaj   +1 more source

Wall deflection induced by pre-excavation dewatering under different construction conditions

open access: yesYantu gongcheng xuebao, 2017
The existing field measurements show that the deformation of retaining wall and surrounding environment induced by pre-excavation dewatering can reach centimeter level, but the relevant researches are still less.
ZENG Chao-feng 1, 2, 3, HU Yi1, XUE Xiu-li 1
doaj   +1 more source

Analytical Analysis of Influence of Dewatering on Adjacent Pipelines Based on Pasternak Foundation

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Based on the Pasternak model of elastic foundation beams, and combining the effective stress principle of soil and Dupuit hypothesis, the analytical solution of adjacent pipeline deformation in sandy soil caused by single well dewatering is derived.
XU Changjie, ZENG Yiting, TIAN Wei, CHEN Ming
doaj   +1 more source

Effects of a Hydropower-Related Temporary Stream Dewatering on Fish Community Composition and Development: From Ecology to Policy

open access: yesFrontiers in Environmental Science, 2022
Hydropower use of rivers can exert multiple effects on aquatic species and habitats. Due to limitations of conservation projects in the main channels of hydropower-affected rivers, there has been an increasing focus on tributaries, side channels, and ...
Joachim Pander   +2 more
doaj   +1 more source

Artificial Neural Networks in Modeling of Dewaterability of Sewage Sludge

open access: yesEnergies, 2021
Mechanical dewatering is a key process in the management of sewage sludge. However, the drainage efficiency depends on a number of factors, from the type and dose of the conditioning agent to the parameters of the drainage device.
Mariusz Kowalczyk, Tomasz Kamizela
doaj   +1 more source

Investigation on Dewatering of a Deep Shaft in Strong Permeable Sandy Pebble Strata on the Bank of the Yellow River

open access: yesGeofluids, 2021
This paper reports the dewatering scheme of a deep excavation in sandy pebble strata. The excavation is in high permeability strata and is close to the Yellow River, making the dewatering difficult during construction.
Yuchao Zheng   +5 more
doaj   +1 more source

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