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Analysis of stability factor of slope in jointed rock masses
Published in Hans-Peter Rossmanith, Mechanics of Jointed and Faulted Rock, 2018
The analysis of rock slope stability factor depending on such parameters as slope steepness, strata dip of the slope and an inclination of the sliding slope to the horizon is of greet interest and importance during the designing and construction of engineering structures in jointed masses. This problem is the most actual on designing and construction automobile highways and railroads in mountains where engineering-geological conditions of the route may be very variable on short parts. The steepness of the natural slope (ω) and dugout slope (δ), conditions of rock deposition (α), strata azimuth scattering and axes of the highway change in such cases. Structure-texture specifications of jointed rock masses inner structures (ρ, m, I0), consisting mainly of structure blocks acting on each other (Maslov & Fonaryov 1987, Fonaryov 1980) have great influence on the rock slope stability.
Floodwater Harvesting
Published in Saeid Eslamian, Faezeh Eslamian, Flood Handbook, 2022
Nasir Ahmad Rather, Shahid Ul Islam, Mir Bintul Huda, Saeid Eslamian
Water harvesting, the capture and storage of floodwaters for use during the dry periods, is a technology proven to increase food security in drought-prone areas. Erosion control and groundwater recharge are the additional advantages of the long-term water harvesting techniques, which contribute to agricultural development and resource conservation. The most common measures adopted for a longer time frame are dugout ponds, embankment type reservoirs, rock dams, percolation tank, gully plug, dug well recharge, etc.
Building Dodger Stadium: Walter O’Malley’s search for nature and modernism in Los Angeles
Published in Journal of Urban Design, 2023
Following site selection, and moving forward to make O’Malley’s vision a reality, the process of moving earth to accommodate the planned stadium began. To build on what was described as ‘primitive, forgotten land’, O’Malley sought the services of architect/engineer Emil Praeger. The success Praeger had with the team’s spring training facility, Holman Stadium in Vero Beach Florida, convinced O’Malley to pursue a similar concept for the future Dodger Stadium. Holman had no poles to obstruct views, held 5,000 seats, and was designed like an amphitheater. Based on the irregular topography of Chavez Ravine, there would be tremendous amounts of land movement and grading to accomplish something similar. ‘A mountain of earth had to be moved’, to create the ‘bowl’ for the stadium and seats, culminating in ‘8 million cubic yards of dirt, sand, shale and rock … ’ to be removed according to the Digout to Dugout video from 1962. Spaces for 16,000 cars atop 300 acres of asphalt, and a new recreation area planned for the site called for extensive paving as well (Podair 2017). To accomplish this, concrete firm Vinnell Contractors was employed along with other specialists focused on excavation and grading. These teams relied on a ‘ … modern fleet of mixer trucks dispatched on precision schedule … ’ incorporating more than 40,000 cubic yards of concrete into the stadium (Digout to Dugout 1962).