Intercontinental Park Water Line Launch Shaft and Thrust Block Design

Intercontinental Park Water Line Launch Shaft and Thrust Block Design

Houston, Texas

Stiver Engineering provided launch shaft, excavator digger shield and thrust block design services for a 108-inch-diameter water line project along city easements from Milner Road to Aldine Westfield Road in Houston, Texas, near the Intercontinental Park area. Two shoring pits, each more than 30 feet deep, were designed with soldier piles, steel plates and timber lagging. Waler beams were used to support the soldier piles. At the launch pit, a jacking frame was designed at the bottom of the pit to resist the thrust from the excavator boring shield system. The jacking frame consisted of three extra waler sets and diagonal bracings connected to a portal support frame using king beams, a header beam and a footer beam.

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