CAIRO METRO Project E14155 - presentation to JV 23 Dec 2014Ahmed Gehad (PRMG)
This document discusses the design of the first depot construction item, which will be a drainage system to collect water from the lowest points in the depot. It outlines 4 design stages and provides a design delivery schedule. The document also discusses the boundary limits between design phases 4A and 4B for different construction groups. Finally, it provides comparisons of different structural design options for viaducts, stations, and foundations.
- The document discusses Cairo's metro system, with a focus on Line 3. It provides details on the existing lines, plans for future expansion, and progress on Line 3's construction. Line 3 will connect Cairo International Airport to western Cairo, crossing the Nile River twice along its 43km route. Construction has faced some delays due to tunneling issues and Egypt's 2011 political upheaval.
Thales used a method involving similar triangles to measure the height of pyramids. He observed that at a single point in time, the shadows of different objects form similar triangles. By comparing the ratio of his shadow's length to his height, Thales could determine the pyramid's height based on the ratio of its shadow's length at the same time. This technique works because corresponding sides of similar triangles have the same ratio. Though not perfectly accurate, it provided an early approximation of heights before modern precision methods.
CAIRO METRO Project E14155 - presentation to JV 23 Dec 2014Ahmed Gehad (PRMG)
This document discusses the design of the first depot construction item, which will be a drainage system to collect water from the lowest points in the depot. It outlines 4 design stages and provides a design delivery schedule. The document also discusses the boundary limits between design phases 4A and 4B for different construction groups. Finally, it provides comparisons of different structural design options for viaducts, stations, and foundations.
- The document discusses Cairo's metro system, with a focus on Line 3. It provides details on the existing lines, plans for future expansion, and progress on Line 3's construction. Line 3 will connect Cairo International Airport to western Cairo, crossing the Nile River twice along its 43km route. Construction has faced some delays due to tunneling issues and Egypt's 2011 political upheaval.
Thales used a method involving similar triangles to measure the height of pyramids. He observed that at a single point in time, the shadows of different objects form similar triangles. By comparing the ratio of his shadow's length to his height, Thales could determine the pyramid's height based on the ratio of its shadow's length at the same time. This technique works because corresponding sides of similar triangles have the same ratio. Though not perfectly accurate, it provided an early approximation of heights before modern precision methods.