Results 21 to 30 of about 2,491 (188)

Hydraulics characteristics of tipping sediment flushing gate

open access: yesWater Science and Technology, 2013
This paper highlights a preliminary study on the potential of a tipping flush gate to be used in an open storm drain to remove sediment. The investigation was carried out by using a plasboard model of the tipping flush gate installed in a rectangular flume.
Bong, Charles Hin Joo   +2 more
openaire   +2 more sources

Precise permeability enhancement technique with hydraulic flushing for coal seams with non-uniformly distributed gas

open access: yesMeitan kexue jishu, 2023
To realize the precise stress relief and permeability enhancement of the coal seam with non-uniformly distributed gas, the criterion and optimization method of key construction parameters of hydraulic flushing was studied by modeling, numerical ...
LIU Ting   +4 more
doaj   +1 more source

Laboratory Analysis of the Flushing Cone Dimensions at the Upstream Bottom Outlets of Dam Reservoir for Different Entrance Shape of Bottom Outlets Using Pressure Flushing [PDF]

open access: yesعلوم و مهندسی آبیاری, 2016
One of the most effective techniques for removing the deposited sediments from reservoirs is pressure flushing which has only much local effects. It is often applied as a clearing process to remove sediment saround the entrance of intakes.In order to ...
Afsaneh Elahi, Mahmood Kasefipour
doaj   +1 more source

Morphological characteristics and permeability evolution of deep mine gas drainage boreholes

open access: yesFrontiers in Earth Science, 2022
Structural coal has low permeability and high gas content. The increase of mining depth seriously restricts the safe mining of deep mines. Hydraulic flushing is the main means of gas extraction.
Xiao Liu   +5 more
doaj   +1 more source

Hydraulic Approach to Flush Systems for Dairy Manure Removal

open access: yesSixth International Dairy Housing Conference Proceeding, 16-18 June 2007, (Minneapolis, Minnesota) (Electronic Only), 2007
The following note characterizes the hydraulic behavior when removing manure from alleys through the flush system in dairy freestall barns. The flush system guarantees the moving, the conveyance and the removal of manure from the alleys flooring, depending on the main manure flux characteristics.
BARBARI, MATTEO   +3 more
openaire   +2 more sources

Potential of the retention capability of a Neotropical reservoir (São Paulo State, Brazil) [PDF]

open access: yesActa Limnologica Brasiliensia, 2023
: Aim Man-made reservoirs lead to several changes in their downstream rivers that depend on the hydraulic characteristics of the reservoirs. However, their multiple uses can also provide facilities that influence the ecosystem services that they provide.
Flavia Bottino   +4 more
doaj   +1 more source

Operation of Flushing Gate on Sediment Flushing Efficiency: A Case Study of Alale Weir

open access: yesMedia Komunikasi Teknik Sipil
This study discuss about hydraulic physical model tests of Alale weir to ensure hydraulic flow behaviour of design flood, condition on downstream of weir, and sediment flushing.
Very Dermawan   +3 more
doaj   +1 more source

Feasibility Study of Sediment Flushing from Mosul Reservoir, Iraq

open access: yesTikrit Journal of Engineering Sciences, 2008
The Feasibility of sediment flushing from Mosul reservoir located northern iraq was conducted. Many upto date world criteria and indices for checking the efficiency of sediment flushing from reservoir which have been got through analyzing large amount of
Thair M. Al-Taiee
doaj   +1 more source

Study and application of reasonable parameters for hydraulic punching of layer penetration boreholes in Changping Coal Mine

open access: yesEnergy Science & Engineering, 2023
Aiming at the application of hydraulic punching technology in soft, low permeability, and high gas coal seams in Changping Coal Mine, there are problems such as large workload, poor permeability enhancement effect, and the formation of “blank zones” in ...
Rui Min   +4 more
doaj   +1 more source

Morphological characteristics of hydraulic punching holes and optimization of gas extraction parameters

open access: yesMeikuang Anquan, 2023
At present, in drilling design and evaluation, the shape of hydraulic flushing hole is usually equivalent to cylinder, which is one of the important bases to determine the effective extraction radius.
LIU Xiao, JING Tianxiang, XUAN Dequan, HU Shixiong, LI Yong1, XU Sen
doaj   +1 more source

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