Results 31 to 40 of about 45,302 (169)

Fiber Optic Sensing for Geomechanical Monitoring: (2)- Distributed Strain Measurements at a Pumping Test and Geomechanical Modeling of Deformation of Reservoir Rocks

Applied Sciences, 2019
In this study distributed fiber optic sensing has been used to measure strain along a vertical well of a depth of 300 m during a pumping test. The observed strain data has been used in geomechanical simulation, in which a combined analytical and ...
Xinglin Lei, Ziqiu Xue, Tsutomu Hashimoto   +2 more
doaj   +1 more source

Quantitative evaluation on the pumpability of lightweight aggregate concrete by a full-scale pumping test

Case Studies in Construction Materials, 2022
Lightweight aggregate concrete (LWAC) shows a smaller density than regular concrete, and it is beneficial by decreasing the dead load of a structure. Pores in lightweight aggregates, which are incorporated 30% of the concrete mix by volume, contribute to
Tae Yong Shin, Yong-Hyok Kim, Cho-Bum Park, Jae Hong Kim   +3 more
doaj   +1 more source

Freshwater-salt water interface dynamics during pumping tests

Acque Sotterranee, 2019
Freshwater-salt water interface (FSI) location is very important information for decision maker in managing coastal aquifer system, however, its temporal change have been hard to get using conventional method such as EC monitoring at one or several fixed
Yongcheol Kim, Heesung Yoon, Soo-Hyung Lee   +2 more
doaj   +1 more source

Diagnostic tests of vertical pumps modernized pump stations

IOP Conference Series: Materials Science and Engineering, 2020
Abstract The article discusses the methods of maintenance and technical diagnostics of large vertical pumping units of modernized pumping stations of the largest cascades of the Amu-Bukhara and Karshi channels to ensure reliability during their operation, assesses the qualitative and quantitative changes in their modes.
O Glovatsky, O Azizov, M Shamayramov, F Bekchanov, A Gazaryan, N Ismoilov   +5 more
openaire   +1 more source

Stochastic Inversion of a Tomographic Pumping Test: Identifying Conductivity Horizontal Correlation and Longitudinal Macrodispersivity

Water Resources Research
Two important properties for modeling flow and transport in heterogeneous aquifers are the horizontal integral scale (Ih) of hydraulic logconductivity (Y = ln K) and the longitudinal macrodispersivity (αL).
Kan Bun Cheng, Avinoam Rabinovich, Gedeon Dagan   +2 more
doaj   +1 more source

Study on vertical hydraulic connection of aquifers based on hydro-chemical characteristics and pumping (discharging) water test

Meikuang Anquan
The 3−1 coal in Xinjie Mining Area is buried deep, and the thick Zhiluo Formation and Zhidan Group aquifers are the main water-filled aquifers, and the hydraulic correlation between surface water and aquifers affects water inrush in the mine.
Huan HUANG, Shuning DONG
doaj   +1 more source

Technical note: Analytical drawdown solution for steady-state pumping tests in two-dimensional isotropic heterogeneous aquifers [PDF]

Hydrology and Earth System Sciences, 2016
A new method is presented which allows interpreting steady-state pumping tests in heterogeneous isotropic transmissivity fields. In contrast to mean uniform flow, pumping test drawdowns in heterogeneous media cannot be described by a single effective or ...
A. Zech, S. Attinger
doaj   +1 more source

Flux Analysis with the Application of Darcy’s Law Based on Borehole Data for Sustainable Groundwater Exploitation

Jurnal Ilmu Lingkungan
The potential for groundwater is very large and widely distributed in Aceh Besar District as indicated by the Groundwater Basin map. This potential is supported by the presence of sedimentary deposits consisting of materials such as gravel, sand and clay.
Zul Fadhli, Khaira Khirnica, Muhammad Syukri, Layna Miska, Yurda Marvita, Marwan Marwan, Dian Budi Dharma   +6 more
doaj   +1 more source

Groundwater quality and hydrogeological characteristics of Malacca state in Malaysia

Journal of Water and Land Development, 2015
Groundwater quality and aquifer productivity of Malacca catchment in Peninsular Malaysia are presented in this article. Pumping test data were collected from 210 shallow and 17 deep boreholes to get well inventory information.
Shirazi Sharif Moniruzzaman, Adham Md. Ibrahim, Zardari Noorul Hassan, Ismail Zubaidah, Imran Hosen Md, Mangrio Munir Ahmed   +5 more
doaj   +1 more source

Hydro-Mechanical Coupling Analysis of Field Pumping Test in Granite Residual Soil Site

Buildings
In addressing the challenge that the settlement behavior of granite residual soil in South China during foundation pit dewatering cannot be fully understood due to its unsaturated characteristics, this study proposes and validates an unsaturated fluid ...
Zefu Li, Yadong Li, Shuyu Nie, Zikang Pang, Jie Cui, Yi Shan   +5 more
doaj   +1 more source