CIE 261 Digital Construction Methods

1. CIE 261Digital Construction Methods Presented by Dr. Leonhard E. Bernold Hanyang University, Ansan Campus

2. Course Topics and Schedule

3. Questions? Journal? Presentation??

4. Semester Group Project Students must work in a team of maximum two students on a term project. The objective of the project is to: a) offer an opportunity to learn hands-on, b) be able to model a small construction operation, c) learn to use computer tools for design and analysis of construction operations The final product of the project, as the basis for the grade, consists of: a) a comprehensive final written report (interim reports checked), b) a final presentation of the project (in English) The project is organized into three phases. At the end of each of the first two phases, each team is required to submit a typewritten interim report addressing the subject of that particular phase. Missing the deadline will automatically reduce the max. amount of points that can be reached by 10 pts.

6. ?? ?? ?? ?? Homework:Complete the Model for100 Cast in Place Piles followed by Excavation and Ground Anchoring Pouring Concrete Auger New Pile Lower Rebar Excavation Anchor Installation ????

7. A specialty foundation company was contracted to drill and insert 63 pilings to underpin the basement and foundation of a building. To perform the work the company employed a drilling machinewhich was powered by a diesel hydraulic system. The auger that was used to drill through the concrete floor and into the earth was approximately 20 cm in diameter and spun at 200 revolutions per minute. A laborer was employed to assist the machine operator during drilling processes, and was using a shovel to clear the earth brought up by the auger. He had to work immediately next to (within 40 cm of) the revolving auger in order to perform the job and had been warned of the danger of wearing loose clothing around the auger. As the 34th hole was being drilled an appendage on the augercaught the arm area of the rain slicker, pulled and spun him around the augermultiple times before the machine operator could disengage the machine.

8. Karl Terzaghi, 1883-1963 1904 Diploma as Mechanical Engineer 1906 Work for Austrian construction company 1910 PhD from Tech. Univ. Graz 1913-1916 Army engineer during WWI 1916-1925 Professor in Istanbul, Turkey 1925 Publication of “Soil Mechanics based on Soil Physics” 1925-29 Visiting Prof. at MIT 1929-1938 Prof. Tech. Univ. in Vienna 1939-1956 Prof. of Soil Mechanics at Harvard δc is the settlement due to consolidation. Cc is the compression index. e0 is the initial void ratio. H is the height of the soil. σ'zf is the final effective vertical stress. σ'z0 is the initial effective vertical stress.

9. = Clayey Material Basic Approaches to Prevent Collapse = Sandy Material σ'zf >σ'z0 σ'zf =σ'z0 σ'zf > =σ'z0 σ'zf =σ'z0 σ'zf =σ'z0

10. Creating a Deep Excavation

11. Creating a Dry Bottom

12. Centrifugal Pump since1851

13. Ranking Communication Methods C A B D F E

14. Calculating Quantity and Surface

15. Building a Canal Lock

20. Downhole Drilling

21. Modern Blasting Alfred Nobel was born in 1833 in Stockholm, Sweden to a family of engineers. His family was descended from Olof Rudbeck, the best-known technical genius of Sweden's 17th century era as a great power in northern Europe Nobel invented dynamite in 1866 and later built up companies and laboratories in more than 20 countries all over the world. A holder of more than 350 patents, he also wrote poetry and drama and even seriously considered becoming a writer. www.explosives.org/HistoryofExplosives.htm

22. Getting Aggregates from the Quarry

23. Stemming = 0.7 B Subdrill = 0.3 B = 2.5 m = = Blasthole L = 5 m

24. Blast Design (Bird’s View)

25. Timing the Blasts

26. Delaying Blasts in Micro Seconds

27. Safety Through Blasting Caps

28. Effective Blasthole Design

29. The Primacord Preparing the Shot

30. Fly-Rock are a Reality

31. Preparing the Shot