Effect of Ventilation to Abrasive Suspension Jet Under Submerged Condition

2020 ◽  
pp. 28-35
Author(s):  
Guoyi Peng ◽  
Yukiteru Tamura ◽  
Yasuyuki Oguma ◽  
Jiri Klich
Keyword(s):  
Submerged Condition ◽  
Abrasive Suspension

scholarly journals AIR COATED ABRASIVE SUSPENSION JETS UNDER SUBMERGED CONDITION

2018 ◽  
Vol 2018 (01) ◽  
pp. 2214-2217
Author(s):  
Seiji Shimizu ◽  
Guoyi Peng ◽  
Yasuyuki Oguma
Keyword(s):  
Submerged Condition ◽  
Abrasive Suspension

Experimental Study on Ventilation and Shaft Excitation Force of a Propeller in Partially Submerged Condition

2021 ◽  
Vol 58 (1) ◽  
pp. 40-48
Author(s):  
Jeongsoo Ha ◽  
Jeonghwa Seo ◽  
Gyukpo Park ◽  
Jongyeol Park ◽  
Shin Hyung Rhee ◽  
...  
Keyword(s):  
Experimental Study ◽  
Submerged Condition ◽  
Excitation Force

Quantitative analysis on the surface topography of Ti-6Al-4V machined by abrasive suspension jet

2020 ◽  
Vol 112 (1-2) ◽  
pp. 323-332
Author(s):  
Wang Fengchao ◽  
Yang Kaining ◽  
Xiao Nanzhe ◽  
Li Liucan ◽  
Guo Chuwen
Keyword(s):  
Quantitative Analysis ◽  
Surface Topography ◽  
Abrasive Suspension

Dynamic Simulation of Immersion of Tunnel Elements for Busan – Geoje Fixed Link Project

2008 ◽  
Author(s):  
Partha Chakrabarti ◽  
Subrata K. Chakrabarti ◽  
Tommy Olsen ◽  
Koo Im Sig ◽  
Kim Chang Whan ◽  
...  
Keyword(s):  
Dynamic Simulation ◽  
Seismic Activity ◽  
Joint Venture ◽  
Submerged Condition ◽  
Wire Ropes ◽  
Tunnel Section ◽  
Immersed Tunnel ◽  
The World ◽  
Salient Features ◽  
Water Depths

Construction of an 8.2km motorway between Busan — Korea’s southernmost, second largest city — and the island of Geoje, called the Busan-Geoje Fixed Link Project, is currently underway. As part of this four-lane fixed link, there will be a submerged tunnel section of 3.2km in length. COWI and Daewoo Engineering Co. have formed a joint venture (CDJV) to carry out the design of the immersed tube tunnel (Busan-Geoje Fixed Link Immersed Tunnel). The Immersed Tunnel consists of 18 Tunnel Elements and will be constructed from East to West. The immersed tunnel will become one of the longest in the world to date, especially in an area of significant seismic activity. Each of the 18 elements is identical, although they will be placed in water depths varying from 15m up to 50m subjected to waves and current. The prefabricated tunnel section will be brought to the site in a submerged condition, where it will be suspended from immersion rigs by four wire ropes. Each tunnel section will be lowered and connected to the previously installed element. The immersion rig pontoons and the submerged tunnel element will be moored to stay in position using as many as 14 wire ropes. This paper describes the unique immersion concept specially developed for this project, the salient features of each phase of analysis and the major conclusions. The findings in this study are expected to aid designers of similar immersion process concepts to ensure safe installation.

scholarly journals An Extension of Taylor’s φ-Circle Method and Some Stability Charts for Submerged Slopes

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Ping Li ◽  
Luanhua Dong ◽  
Xiaowen Gao ◽  
Tonglu Li ◽  
Xiaokun Hou
Keyword(s):  
Analytical Solutions ◽  
Factor Of Safety ◽  
Classical Method ◽  
Circle Method ◽  
Failure Surface ◽  
Underground Water ◽  
Submerged Condition ◽  
Stability Calculation ◽  
Critical Failure Surface ◽  
Underground Water Table

Taylor’s φ-circle method is a classical method for slope stability calculation, which has analytical solutions. Taylor derived equations in two cases separately, namely, (i) the outlet of the critical failure surface is at the slope toe and (ii) the outlet of the failure surfaces is not at the slope toe. The method is only appropriate for two conditions (without underground water table in slopes or totally submerged slopes). In this study, a general equation that unifies the equations of the two cases is proposed and partially submerged condition is introduced. The critical failure surfaces corresponding to the minimum factor of safety are determined using the computer program proposed by the authors. The general expression of the safety factor of slopes under the following four conditions is derived, namely, (i) partly submerged, (ii) completely submerged, (iii) water sudden drawdown, and (iv) water slow drawdown. The corresponding charts for practical use are available.

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