Earth retention systems are walls that are erected to uphold soil while protecting adjacent structures and prevent soil from descending while excavation takes place. The surface conditions and height of the wall determine if these systems are cantilevered, tied back, or internally braced. Malcolm’s provides a range of earth retention systems; these include diaphragm walls (slurry walls), secant piles, Soil mixed walls. Cutter Soil Mixing (CSM Systems), jet mixing, multi-axis soil mixing, Cement Deep Soil Mixing (CDSM), soldier pile walls, soil nail systems, soil nail walls, and slope stabilization, including post tensioned anchors, stitch piers, and retention walls.
Diaphragm walls, also known as D-Walls or slurry walls, are a robust retention system consisting of reinforced concrete walls that can be used for temporary or permanent shoring walls to depth of more than 300 feet. Diaphragm walls are formed…
Slope Stabilization Reinforcement Expertise Malcolm Drilling slope stabilization expertise is applied to safely and securely reinforce existing unstable slopes and to allow re-grading for development of new facilities. Malcolm's slope stabilization projects employ post-tensioned anchors, stitch piers and dewatering in…
Soil mixing improves the engineering properties of soil by injecting cementitious grout and blending the materials in-situ. Soil mixed walls are constructed by overlapping elements of soil mixed ground, and inserting structural piles for reinforcing. Soil mixed walls offer a…
Secant Piling Construction System Secant piling is a robust, rigid system which can be used to construct combined earth retention and groundwater cut-off walls. The continuous wall is constructed by drilling overlapped concrete piles with diameter typically between 2 and…
Soil nail systems stabilize a section or block of retained ground by installing closely spaced grouted steel rods into the exposed face as the excavation proceeds downwards. This approach provides a flexible, cost-effective and efficient earth retention solution. The rows…
Soldier pile walls provide a core system for earth retention in both temporary and permanent applications. Structural “soldier” piles are installed from original grade. Then, as the site excavation proceeds in lifts, lagging is placed between the piles to retain…