Comparative Study on Reinforced Concrete Pile Wall -And– Soldier Pile Wall with Timber Lagging (SHORING)
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Date
2017-06
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Addis Ababa University
Abstract
In the recent year the construction of high rise buildings are significantly increasing in our
country. Those buildings require large parking area, stores and other facilities that can only be
fulfilled by constructing basements. For the construction of basements and underground passes
have created need to go deep excavations into ground. Deep excavations are supported by
shoring systems or pile walls. The project seeks to find out the better option between
reinforced concrete pile wall and soldier pile wall with timber lagging in cost savings and
feasibility of internal stabilized which have advantage like material availability, construction
cost effectiveness, durability, easy construction and corrosion resistance and so on, for our
country context.
To achieve this objectives design reinforced concrete pile wall and soldier pile wall with
timber lagging at different pile spacing (0.6m,0.9m ,1.2m,1.5m and 1.8m)and first anchor level
(3.5m,3.7m,4.0m,4.5m and 5.0m) using deepXcav software, excel spread sheet and hand
calculation done and based on the outputs form these analysis have been done cost estimation
(bill of quantity) preparation for the purpose of cost comparison.
Finally, the comparison of the two shoring system is carried out based on safe design and the
cost efficient. The cost analysis and the optimum design disclose that the cost of solider pile
higher than reinforced concrete pile wall.
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Keywords
deep excavation, reinforced concrete pile wall, solider pile with timber lagging, anchor, bill of quantities, shotcrete