STRESS REDUCTION ON BURIED CONCRETE CONDUITS UTILIZING COMPRESSIBLE INCLUSION

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Eng. Ahmad Abdelhalim Mohammad
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Saudi Digital Library
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In recent years, the Kingdom of Saudi Arabia started some huge projects in the field of infrastructure development through all Kingdom regions. Among these projects are the water and sewage systems, which don’t yet cover all of Kingdom cities and regions. With the urban development, the infrastructure projects increased for connecting sewage networks to many areas. At the beginning, cast iron pipes were used in these networks, however they are fragile and need to be treated carefully during installation under the ground. Moreover, by the time, cast iron pipes may cause environmental problems to soil and groundwater due to steel corrosion and rust. Reinforced concrete pipes are considered to be a good and economic choice for sewage pipes since they are less expensive, locally produced, and environmentally safe. The disadvantage of reinforced concrete pipes is that they do not bear large overburden loads of soil to avoid their breakage due to its rigidity. This means they cannot be embedded at large depths underground as it sometimes required in sewage networks. The use of reinforced concrete pipes is not limited to the sewage systems, but they are also used in water and oil transfer as well as in storm water drainage systems and utility tunnels throughout the Kingdom cities.
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