Portal with drainage flows.
Deere & Ault’s staff provided a pre-bid analysis of the tunnel alignments, and consulting services for one of the contracts. Our services included mapping the geologic conditions as they were encountered, and conducting a soil exploration and laboratory testing program ahead of the digger shield.
Deere & Ault’s staff also advised the contractor on dewatering methods, the effectiveness of chemical grouting, and geologic conditions that required special consideration.
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