experimental study of the influence of excavation surface
Experimental Study on the Influence of the Grinding Wheel
This paper describes the experimental results of the relationship between grinding wheel topography and grinding chatter and surface waveness on the precise surface grinding machine. The inner relationship between the grinding chatter and grinding surface waveness has been analyzed. The experimental research results show that the grinding depth is a main factor which affects grinding
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Experimental and Numerical Study of the Influence of
The effect of substrate surface topography on the creation of metallurgical bonds and mechanical anchoring points has been studied for the cold spray deposition of pure aluminum on 300M steel substrate material. The coatings adhesion strength showed a significant decrease from 31.0 ± 5.7 MPa on polished substrates to 6.9 ± 2.0 MPa for substrates with roughness of 2.2 ± 0.5 μm.
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THE INFLUENCE OF UNLINED EXCAVATION Share research
The understanding of the three-dimensional aspects of face stability can only be accomplished by 3D numerical analysis which is very complex and time consuming and consequently very rarely performed.Most existing studies address mainly unlined and fully lined tunnels neglecting the importance of the unsupported excavation length behind the face.
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Experimental and Molecular Dynamics Simulation Study of
The influence of different inorganic anions (Cl– Br– SCN– NO3– SO42– and CH3COO–) and cations (Ca2 Mg2 Na and NH4 ) on the surface potential of graphene oxide (GO) suspension has been investigated both experimentally and computationally. The hydrophilic GO surface has negative surface potential (zeta potential) which can be varied by changing the pH of the suspension as
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Experimental study on the influence of the downward facing
After carrying out the influence of micropores on CHF Zhong et al. 10 process the surface with fins again to study the influence of fins on CHF. The results show that the CHF value on the fin surface can be up to 3 times than that of the ordinary surface. Y. Takata et al. 11 study the effect of TiO 2
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Centrifugal Investigation of Excavation Adjacent to
Aug 04 2018 · Experimental studies concentrated on excavation-induced lateral earth pressures bending moments of retaining structures lateral deformation and ground settlement.
Get PriceCombined Computational and Experimental Study on the
In this work we present a combined computational and experimental study on electrode–electrolyte interactions in electric double-layer capacitors. The influence of pore size and surface chemistry of carbon-based electrode material on interactions with the electrolyte has been investigated for an organic and inorganic electrolyte using
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Experimental study on the artificial recharge of
Feb 01 2018 · Experimental study on the artificial recharge of semiconfined aquifers involved in deep excavation engineering. As the scale and depth of deep excavation have expanded the safety stability and environmental influence of excavation have drawn increased attention. Relieving the pressure in a confined aquifer is usually essential for
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Experimental Study of the Influence of the Surface
The low quality of adhesion performance on polymeric surfaces has forced the development of specific pretreatments able to toughen the interface between substrate and adhesive. Among these methods atmospheric pressure plasma treatment (APPT) appears particularly suitable for its environmental compatibility and its effectiveness in altering the chemical state of the surface.
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Experimental Study of the Influence of Surface Conditions
Most theories of Explosive Electron Emission are based on the idea of cathode flares developing after explosion of metal whiskers on the cathode surface. The spatial structure of the flare its origin and the process of flare development are still a matter of conjecture. In this work we used picosecond duration high resolution laser probing and X-pinch point-projection X-ray radiography to
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Experimental Investigation of the Influence of Burnishing
Experimental Investigation of the Influence of Burnishing Parameters on Surface Roughness and Surface Hardness of Aluminium Alloy 6061 T6 on CNC machinewritten by Sumitkumar S Loriya Asst. Prof. Vijay Patel published on 2018/03/22 download full article with reference data and citations
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Influence of Radial Stress Gradient on Strainbursts An
Jun 22 2017 · The release of the radial stress at excavation boundaries is one of the major inducing factors for strainbursts in tunnels. After excavation the radial stress usually exhibits different but apparent gradient variations along the radial direction near the boundary within a certain depth under different in situ stress conditions.
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Experimental Study on the Influence of the Grinding Wheel
This paper describes the experimental results of the relationship between grinding wheel topography and grinding chatter and surface waveness on the precise surface grinding machine. The inner relationship between the grinding chatter and grinding surface waveness has been analyzed. The experimental research results show that the grinding depth is a main factor which affects grinding
Get Price
(PDF) An experimental and theoretical investigation of the
Static corrosion rate experimental results at 1 bar total pressure 25°C various surface finish after correcting for total surface area. These tests were then extended to cases of turbulent flow
Get PriceExperimental Study on Bending Moment of Double-Row Steel
Double-row steel pipe piles have been widely used in retaining and protection of foundation excavation because of the advantages of high bearing capacity high flexural rigidity fast construction speed and so on. This study presents a field test to assess the feasibility of strain gauges in monitoring the strain of double-row steel pipe piles during foundation excavation.
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THE INFLUENCE OF UNLINED EXCAVATION Share research
The understanding of the three-dimensional aspects of face stability can only be accomplished by 3D numerical analysis which is very complex and time consuming and consequently very rarely performed.Most existing studies address mainly unlined and fully lined tunnels neglecting the importance of the unsupported excavation length behind the face.
Get Price
Experimental study on the artificial recharge of
Feb 01 2018 · Experimental study on the artificial recharge of semiconfined aquifers involved in deep excavation engineering. As the scale and depth of deep excavation have expanded the safety stability and environmental influence of excavation have drawn increased attention. Relieving the pressure in a confined aquifer is usually essential for
Get Price
Experimental Study on the Influence of Temperature on
Pore size slowly increases with temperature rising. In the experimental study alkaline residue surface morphology is researched by SEM under different temperature SEM images showed that alkaline residue is porous polymeric aggregate in natural conditon there is an improtant influence of thermal treatment on alkaline residue surface morphology.
Get PriceThe experimental study of the surface current excitation
The experimental study of the surface current excitation under the influence of a relativistic electron electromagnetic field . By G. Naumenko A. Potylitsyn Yu. Popov and L. Sukhikh. Cite . BibTex Full citation Abstract. The problem of the surface current excitation in a conductive targets by a relativistic electron electric field as the
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Experimental study on stability of tunnel excavation
Download Citation Experimental study on stability of tunnel excavation surface in sand foundation by slurry shield method Through model test a research is carried out on the mechanism of the
Get PriceExperimental study for the influence of surface
Nov 13 2014 · Abstract. Invited Paper Experimental study for the influence of surface characteristics on the fringe patterns a c a a a a b Wei Jiangtao Xi Yanguang Yu Qinghua Guo and Yongkai Yin School of electrical Computer and Telecommunications Engineering University of Wollongong Northfields Ave Wollongong NSW 2522 Australia Key Laboratory of Optoelectronic
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An experimental study of the influence of jet surface
Bubble production by a small liquid jet at a free surface is studied experimentally. It is well known that the air entrainment is closely related to the jet surface roughness. A special coaxial nozzle in which a liquid jet enters a free surface is used to precisely measure the air entrainment rate as a function of the jet speed. Several types of nozzles of diameters ranging from 1.6 mm to 2.4
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Experimental study on surface settlements induced by
Apr 01 2020 · Experimental study on surface settlements induced by sequential excavation of two parallel tunnels in drained granular soil S between the two tunnels and the magnitude of the tunnel volume loss V t were the two main variables considered in the experimental study. the adverse influence of the low stress levels in 1 g models can also be
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Experimental Study of the Influence of the Surface
The low quality of adhesion performance on polymeric surfaces has forced the development of specific pretreatments able to toughen the interface between substrate and adhesive. Among these methods atmospheric pressure plasma treatment (APPT) appears particularly suitable for its environmental compatibility and its effectiveness in altering the chemical state of the surface.
Get Price
An experimental study of the influence of jet surface
Bubble production by a small liquid jet at a free surface is studied experimentally. It is well known that the air entrainment is closely related to the jet surface roughness. A special coaxial nozzle in which a liquid jet enters a free surface is used to precisely measure the air entrainment rate as a function of the jet speed. Several types of nozzles of diameters ranging from 1.6 mm to 2.4
Get Price
Experimental study on the influence of the downward facing
After carrying out the influence of micropores on CHF Zhong et al. 10 process the surface with fins again to study the influence of fins on CHF. The results show that the CHF value on the fin surface can be up to 3 times than that of the ordinary surface. Y. Takata et al. 11 study the effect of TiO 2
Get Price
Experimental and Numerical Study of the Influence of
Jul 27 2017 · The effect of substrate surface topography on the creation of metallurgical bonds and mechanical anchoring points has been studied for the cold spray deposition of pure aluminum on 300M steel substrate material. The coatings adhesion strength showed a significant decrease from 31.0 ± 5.7 MPa on polished substrates to 6.9 ± 2.0 MPa for substrates with roughness of 2.2 ± 0.5 μm.
Get Price
Stability Analysis of Shield Excavation Face Based on
Due to the main research on the stability of the excavation surface the soil arching effect and the surface subsidence caused by the instability of the excavation surface the geotechnical parameters obtained from the geological survey and the triaxial tests are used to obtain the geotechnical parameters combined with the previous excavation parameters and monitoring data.
Get PriceExperimental study for the influence of surface
Experimental study for the influence of surface characteristics on the fringe patterns. Wei. a c Jiangtao Xi a Yanguang Yu. a Qinghua Guo. a. and Yongkai Yin. a b a. School of electrical Computer and Telecommun ications Engineering University of Wollongong Northfields Ave Wollongong NSW 2522 Australia . b
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