Diaphragm walls are commonly used in congested areas for retention systems and permanent foundation walls. They can be installed in close proximity to existing structures with minimal loss of support to existing foundations. In addition, construction dewatering is not required, so there is no associated subsidence. Diaphragm walls are created by removing and replacing in-situ soil with a material of known characteristics. A series of deep, intersecting, rectangular trenches are excavated in the soil or rock, and are subsequently filled with material of controlled quality, which forms a structural support wall. Diaphragm walls have been used as deep groundwater barriers through, and under dams. In some applications, they are constructed with a non-reinforced plastic concrete material.
RECON was contracted to design and build a Limestone Unloading Pit (LUP) at a power plant in Ohio. Limestone loaded trains pass over the top of the LUP, supported by a 42-inch thick reinforced concrete "diaphragm wall", which is at depths of more than 50 feet below grade.
GT Omniport, a multimodal facility located in Port Arthur, Texas, is an industrial park and liquids terminal offering rail, truck, barge, pipeline and deepwater ship transloading services. The environmental remediation and civil service construction project included soil preparation, demolishing the concrete and steel structures, clearing, grubbing, crushing concrete, beneficial reuse of of crushed concrete, and soil stabilization using RECON’s patented blend of reagents.