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Q. Why does pipe jacking machine usually get stuck when the ground condition change from soil to very hard rock?
When pipejacking machine moves from anarea of soil to very hard rock, it will be subject to damage of cutting disc. To break and loosen the rock, pipejacking machine applies a large torque on cutting wheels. Though, with the change of soft region to hard region,pipejacking machine is still under the same jacking load. This results in insufficient or little space for the movement of machine against the rock face, resulting in damage and exhaustion of pipejacking machine.
A capital improvement project requires the installation of a property line fence along the 250-ft Northern boundary line.The decorative aluminum fence is constructed of posts space
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Question Why are voids filled with lightweight infilling material in raft base of pumping stations ? Answer To decrease dead load and therefore to decrease settleme
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