Essays on Blasting

Define Activities:

The primary activity is to develop the longest road tunnel in Australia. The tunnel will be 9km long, and reach from the northern exchange, near North Wahroonga, to the southern exchange, near Northmead. This will include the creation of not only the tunnel itself, but also tunnels for onramps and off ramps, as well as additional earthwork, the widening of brides, creation of drainage infrastructure, new pavement and the replacement of signage to indicate the tunnel, once open. The purpose of this construction is to create an alternate route for trucking traffic, to remove roughly 5,000 trucks from ...

Forces of nature shape the surface of the earth, but there are also the manmade industries that can largely reform and alter the landforms. Quarrying is also one of the men invented industry that has a different impact on the people and the environment at large. Focusing on the problems associated with the environmental effects, it can largely impact the health of the people through inhalation of dust and listening to loud, noisy sounds. Indirect problems of the quarrying include the calamities that can cause greater damages such as through land sliding and flash floods. Major negative effects of ...

On February 9, 1950 unknown senator from the State of Wisconsin Joseph McCarthy, shaking by a sheet of paper, stated thaat he have declared on meeting in Wheeling (West Virginia) that he has a list of 205 persons who are known to the state secretary as members of communist party and who, however, continue to work and formulate policy of State Department. (Caughey, 68) He has made similar statements also in other cities of the country. The right-wing press and other mass media have picked up these charges. The name of senator soon became a banner of political reaction ...

Abstract

A dual carriageway is proposed to be constructed in the town moving in the east-west direction. The dual carriage is intended to be eight-kilometer long looping around the northern part of the town. Cut and fill techniques are used where half of the road is cut to a maximum of six meters. Half of the road is supported by an embankment of six meters high. At the eastern and western ends of the road are of grade where the road joins other roads and at the middle where the cut sections meet the filled sections. The road has a ...

Introduction:

Occupational exposure to silica crystals has long been identified and recognized in most of the industries. There are various industries that involved the silica dusts, where some are highly exposed beyond the threshold limits for the substances. The problem with the occupational exposure of workers to silica crystals are often not taken seriously be employer and employee alike. Exposure to silica in the occupational environment results to health effects such as silicosis and other related diseases. People who are working with these crystals are prone to respiratory effects as well. There is a problem in the safety and health ...

According to EPA (2016), environmental management involves the development of systems aimed at reducing environmental impacts of various activities. In the Brundtland commission report (WCED), sustainable development has been described as development aimed at meeting the current needs of the present generation. However, as the current generation focuses on meeting their own needs, their activities should not compromise the capability of future generations to also meet their own needs. Available evidence suggests that the future generation would have challenges meeting their own needs if the current generation fails to adopt sustainable practices. The sustainable development incorporates the triple line: ...

Mount Rushmore National Memorial, also known as the Shrine of Democracy, is a sculpture of the heads of four presidents of the United States: George Washington, Abraham Lincoln, Theodore Roosevelt, and Thomas Jefferson. The sculptor Gutzon Borglum supervised the carving of the four faces into a peak of a mountain located in South Dakota’s Black Hills (CyArk, 2013). Originally, the sculpture was to depict the presidents from the waist up but Congress decided to find the sculpture complete with the finished faces after the death of Borglum in 1941, followed by a refusal to continue funding due to the United States entering ...