Which of the Following Practices Should Be Followed When Placing

Which of the following practices should be followed when placing bedding material into a reinforced concrete pipeline trench during construction?

A) The bedding should be placed on top of a firm and stable trench bottom
B) When the water table is above the trench bottom, the water level should be lowered to at least the trench bottom
C) The bed should be over-excavated at each joint location to ensure that the pipe has a continuous support and does not rest on the couplings
D) All of the above

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