Port of Churchill Deepwater Wharf

The project was located in Churchill, Manitoba on the mouth of the Churchill River on Hudson Bay. Churchill has no access by road. Freight and equipment had to be shipped in and out by rail or by airplane. The owner supplied the sheet pile and steel beam materials that made up the soldier pile wall system. The work was performed off the existing dock. The working area on the dock was very restricted due to the existing warehouse and the overhead conveyor gallery leaving only a narrow area for operations.

To overcome this restriction the DR 40 was modified and set up on rails to fit on the 50 meter long 6 meter wide section of dock between the warehouse and edge of the dock. 

The scope of work was to drill and install one hundred thirty one  36”diameter steel pipe casings complete with 2.5 meter rock sockets at varying overburden and rock depths. We then installed one hundred thirty one  HZ 575A king piles into the 36” pipe casings and rock sockets, complete with concrete tremie poured around the pile in the rock socket.

The 36” pipe casings were then extracted and double AZ26 intermediate sheet piles linked between the king piles were installed through the overburden with a vibratory hammer.

A 235 meters long W610 galvanized waler was then installed along the inside of the soldier pile wall. The waler installation was followed by fifteen double dywidag tie rods complete with concrete anchors and spaced appropriately to tie back the soldier pile wall. We then supplied and placed 3680 cubic meters of concrete fill between the old wall and new wall. Also new concrete pile caps and curb were formed and poured.