Steel Reinforced Trench Fill for Ground Stabilization

Abstract

This design is for wall and slope stabilization where the soil is stabilized by modified rebar placed in trenches excavated into the soil. The soil mass is supported by a series of grouted trenches. By excavating a series of trenches at designed locations and elevations in a soil mass where a slope and/or retaining wall is planned. The discontinuous trenches subdivide the mass into small segments thus reducing the anticipated load on the wall face or improve the stability of the soil slope. Discontinuous trenches filled with angular debris around modified steel rebar which will function as horizontal anchors for improved stability. The final step is to grout the trench fill. This will accomplish three things. First it will solidify the trench fill into a solid steel reinforced mass. Secondly, the rebars can be attached to the wall face as tie back anchors. Solid discontinuous trenches improve slope stability.

1 . I claim that the system of casting concrete on steel rebar and allowing it time to cure will allow for the steel reinforcement of fill material placed within a trench excavation for ground stabilization improvement and exposed portions of said rebar can be incorporated into external structures such as retaining walls, structural foundations, or ground anchor system, along with the concrete covered steel rebar the trenches can be filled with a variety of solid inert material such as pieces of concrete that comes from other sources such as demolition of existing structures, waste concrete that is broken to sizes less than 30 centimeters, rock that is cobble size or small boulders, gravel and coarse sand, such that the trench fill will be sufficiently porous for injected grout to fully penetrate ultimately to form a solid steel reinforced mass within the initial trench excavation to improve the overall stability of the ground. 
     
     
         2 . I claim that the above referenced  claim 1  steel reinforced trench can take any shape that will be compatible with the limitations or needs of any given site. 
     
     
         3 . I claim that the above referenced  claim 1  steel reinforced trench can be used for the stabilization of new compacted fill soil and the trenches can be constructed at locations and intervals to function as tieback anchors for a wall face. 
     
     
         4 . I claim that the above referenced  claim 1  steel reinforced trench can be used for the stabilization of existing fill soil or naturally occurring soil deposit and could be used for stabilization of new or existing retaining walls by acting as a tie back or providing additional stability where needed. 
     
     
         5 . I claim that the above referenced  claim 1  steel reinforced trench can be used for both long term and temporary improvement of the stability of any soil or rock formation. 
     
     
         6 . Steel reinforced grouted trenches can be constructed in any shape desired to satisfy the needs for a given project. 
     
     
         7 . Steel reinforced trenches can be grouted using a manifold system to distribute the grout or a series of tubes for the length of the trench. 
     
     
         8 . I claim priority for the shapes and design of the concrete cover over the steel rebars presented in this patent application. 
     
     
         9 . The shape of the concrete cover over the steel rebars can vary from one project to another or even within a given project.