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양우식 ( Yang Woo Shik ),김기웅 ( Kim Khi Woong ) 한국농공학회 1998 韓國農工學會誌 : 전원과 자원 Vol.40 No.6
Stock(1992) had developed the graph for solving the penetration depth, tieforce of anchor and maximum bending moment of sheet-pile wall for cantilever and free earth supported anchored wall. Kim(1995) had developed graph for design of fixed earth supported anchored wall. In this paper, the simplified formulas for calculating the penetration depth, tieforce of anchor and maximum bending moment of sheet-pile wall was developed for fixed earth supported anchored wall in sand. The developed formulas may be helpful for design or sheet pile wall.
양우식,김기웅 東新大學校 1995 論文集 Vol.7 No.-
A comparative study is made on the simplified method of stability analysis for multi-layered slope using stability charts, program STABL5 and probabilistic method STAFOSM. Chart solutions are the methods using stability factors or stability numbers with simplified soil properties and geometrical condition. The reliability of the earth slope is analyzed using the First Order Second Moment(FOSM) probabilistic method, adopting the Janbu method as the stability model. And this can be very important for the current state of design practice. These simplified methods are appropriate for the simple slopes with homogeneous and isotropic soil conditions, but it has a dangerous case for applying to the nonhomogeneous slopes with some modification.
梁禹植,金基雄 東新大學校 1991 論文集 Vol.10 No.-
This paper discusses some improvement on the First -Order Second-Moment (FOSM) Probabilistic approach to slope design. A method is presented to analyze the reliability of the slope structure. The component reliability is analyzed employing FOSM method which is widely used in the structural reliability analysis. A new solution scheme is used herein for Bishop'method. The reliability index β defined by Hasfer and Lind is applied as an index of safety measure.
양우식 東新大學 1990 論文集 Vol.3 No.-
This is a study on the stability analysis of the complex slope reinforced by tie-back and composed of nonhomogeneous, isotropic backfill and groundwater. The concept of the simplified Bishop method is adopted for the slope stability analysis along the circular and the cycloid arc failure surface, and the simplified Janbu method is used for the slope stability analysis along the circular and the irregular failure surface. The factor of safety obtained along the circular and irregular surface is compared with the value along the cycloid arc failure surface for the slope reinforced by Tie-back.
양우식 東新大學校 1996 論文集 Vol.8 No.-
It had been studied on the Reinfoced Technique of Dangerous Masonry Wall by Case Examination. In this Case, The Reinfocement of Wall is unavoidable because of Safety Factors of Wall are insufficiency to minimum Safety Factor 1.3. The Result, concerning the Reinforce Technique on the Slope Stability by STABL5M, is as below. (1) It must be investigated not only the Overturning, Sliding, Bearing Capacity of Retaining Wall but also the Safety on the Slope Stability. (2) In case of Analyzing the Slope Stability using C.I.P. Reinforcing, the Condition of Shape of Slip Surface, Input Data of STABL5M, should be handled 'Random'. (3) As shorter the Distance from Back of Retaining Wall to Pile as more sufficient to establishing the Reinforce Method of Dangerous Retaining Wall because of Inclosing the Factor of Safety on the Slope Stability. (4) For the Minimum Factor of Safety on the Slope Stability will be taken, Ending Point of Slip Surface should be placed near by Back of Retaining Wall.
사질토지반 앵커식 널말뚝 설계를 위한 흙막이 해석법 적용에 관한 연구
양우식,김기웅,장준환 東新大學校 工業技術硏究所 1999 工業技術硏究 Vol.5 No.-
The sheet-pile wall has been generally used as a temporary retaining structure when the underground excavation is performed. The design parameters of sheet-pile wall are penetration depth, anchor pull and maximum bending moment. It was compared the methods of conventional design, using the design charts and bracing system design by analyzing and estimating the design parameters of sheet-pile wall in sand. It was suggested that can be applied the bracing system analysis method to the designing the sheet-pile wall.
양우식,김재홍 東新大學校 工業技術硏究所 2000 工業技術硏究 Vol.6 No.-
Recently, the design method using program SUNEX is used most commonly as a method to analyze ground movement of braced excavation walls. The objectives of this research are to analyze and evaluate the differences between the results used program SUNEX and those of previous researches in terms of the maximum horizontal displacement of braced excavation walls and the maximum settlement of the surrounding grounds, which are the most significant issues in constructing braced excavation walls, to examine the reliability of the program SUNEX analysis methods.
양우식,이진수,김기웅 東新大學校 1998 論文集 Vol.10 No.-
Stock(1992) had developed the figure for solving the penetration depth, tieforce of anchor and maximum bending moment of sheet-pile wall for cantilever and free earth supported anchored wall. Kim(1995) had developed figure for design of fixed earth supported anchored wall. The formula for calculating the penetration depth, tieforce of anchor and maximum bending moment of sheet-pile wall by fixed earth supported Method in case of waterfront structure, have been arranged. It have been cleared the design parameters, anchor pull ratio and penetration ratio and maximum bending moment ratio, are respectively function of independent variables which are geometrical condition and soil properties.
양우식,김유진 東新大學校 工業技術硏究所 2001 工業技術硏究 Vol.7 No.-
Throughout the present study deals with chart for design and brief equation for minimum depth, minimum anchor force and maximum bending moment of sheet-pile wall considering soil parameter, which is the design condition for free earth supported anchored sheet-pile wall in cohesive soil, geometrical condition and residual water pressure that occurs due to difference of level between front and back. It configures horizontal soil pressure distribution considering residual water pressure which occurs due to difference of level, soil parameter, which is the design condition for sheet-pile wall and geometrical condition. It also induces an equation that finds minimum depth, minimum anchor force and maximum bending moment. When designing the difference of level for free earth supported anchored sheet-pile wall in cohesive soil, it didn't calculate the numbers but developed the chart for design which can find depth, anchor force and maximum bending moment. It developed brief equation that could be used as initial value for the best design and verification of en-ors in calculation by simplifying the design procedure when designing free earth supported anchored sheet-pile wall in cohesive soil considering the difference of level.