نتایج جستجو برای: confined and unconfined concretes
تعداد نتایج: 16832692 فیلتر نتایج به سال:
The biphasic poroviscoelastic (BPVE) model was curve fit to the simultaneous relaxation of reaction force and lateral displacement exhibited by articular cartilage in unconfined compression (n=18). Model predictions were also made for the relaxation observed in reaction force during indentation with a porous plane-ended metal indenter (n=4), indentation with a nonporous plane ended metal indent...
A large database consisting of 832 axial compression tests results of fiber reinforced polymer (FRP)confined concrete specimens was assembled. Using the test database, existing conventional and evolutionary algorithm models developed for FRP-confined concrete were then assessed. New genetic programming (GP) models for predicting the ultimate condition of FRP-confined concrete were developed. Th...
The water balance calculation and water quality are very important matters in the groundwater management. The water balance includes two parameters: input and output parameters. The input parameter is consisted from surface recharge (precipitation, irrigation return water, surfaces runoff recharge) and underground inflow (flow from adjacent aquifers). The underground inflow is an important fact...
Wells screened across multiple aquifers can provide pathways for the movement of surprisingly large volumes of groundwater to confined aquifers used for public water supply (PWS). Using a simple numerical model, we examine the impact of several pumping scenarios on leakage from an unconfined aquifer to a confined aquifer and conclude that a single inactive multi-aquifer well can contribute near...
We present an investigation of the resonance conditions governing triad interactions cylindrical internal waves, i.e. Kelvin modes, described by Bessel functions. Our analytical study, supported experimental measurements, is performed both in confined and unconfined axisymmetric domains. are interested two conceptual questions: can we find for a modes? What impact boundary on such resonances? I...
This work aims to investigate different predictive models for estimating the unconfined compressive strength and maximum peak strain of non-structural recycled concretes made up by ceramic concrete wastes. The extensive experimental campaign carried out during this research includes granulometric analysis, physical chemical compression tests along with use 3D digital image correlation as a meth...
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We present a novel hybrid algorithm, integrating a genetic algorithm (GA) and constrained differential dynamic programming (CDDP), to achieve remediation planning for an unconfined aquifer. The objective function includes both fixed and dynamic operation costs. GA determines the primary structure of the proposed algorithm, and a chromosome therein implemented by a series of binary digits repres...
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