Wright Concrete Work
No project too challenging, no location too far
Walls are something that we as an experienced contractor “eat for lunch.” When we say there isn’t a wall that we can’t build, we mean just that. Whether it be driving piles & attaching lagging for a steel wall or the tumultuous expertise it takes for a decorative form-lined retaining wall, we do it all.
If you need a good quality reasonably priced retaining wall under any type of time constraint, Wright Concrete can meet your needs.
Wright Concrete and Construction's business began with building bridges. From structures built to support heavy coal trucks to simple walk bridges, the company has earned a solid reputation for the design and construction of dependable bridge spans.
We design and erect steel structure buildings for maintenance shops, garages, offices, or whatever need you have. We offer competitive prices on building packages or just erect your own building on your site.
We routinely are called upon to pour slabs (or both commercial and industrial projects such as preparation plants, restaurants, office complexes, and apartment buildings. Whether you need a slab laser leveled for precise factory floors or a heavily reinforced slab for equipment maintenance we have the pumps, equipment and manpower ready to go to work for you.
We are also one of a few certified Post Tension installers in Central & Eastern Kentucky and have all the tools and personnel to complete your most difficult post tension slab projects.
Surface Mine Construction
Whether you are facing up a new mine or high wall mining, if you have auger holes or old entries that need to be sealed off or grouted full, from low cost cellular concrete to those high early strength neat cements, let our experts give you several different cost effective methods of reaching your goals.
This auger hole closure project was in the fall of 2CXJ4 constructed around an upper bench of an active slurry impoundment ahead of the raising for the next stage of the impoundment. MSHA required we use a 3000 psi concrete and pressure to 1000 psi resistance to insure complete filling of each hole for added assurance we installed bleeder pipes to the rear of each hole to release the trapped air and to show inspectors when the holes were topped off. This is one version of this type of closure that we have been doing for over 14 years.
Impoundments - Breakthrough Protections
Two projects consisted of drilling 3" holes down in strategic locations through the slurry impoundment into existing old mine voids that lay under the impoundment. After the holes were drilled and cased we pumped approximately 8,000 cubic yards of 1000 psi cellular concrete down thru these pipes and into the voids, filling the old works up to create an additional roof support to help ensure that no impoundment breakthroughs occurred in these high risk areas. Our downhole high resolution infrared cameras were used to assure MSHA the voids were being filled to specifications.
We also construct thickeners, one example is a 120' diameter 12' tall thickener, built for the Gatling Coal operation in New Haven, West Virginia. This was completed in approximately six weeks with the aid of our Symons adjustable radius gang form system.
In the summer of 2003, Sidney Coal Company needed to upgrade an overflow spillway at their coal refuse slurry impoundment facility in Pike County, Kentucky. The spillway needed to be constructed directly over coarse coal refuse and provide a safe means of transporting large volumes of water. Using ArmorForm erosion control system forms at two separate elevations Wright Concrete and Construction crews completed the project to the complete satisfaction of both MSHA and Sidney Coal.
Shotcrete & Gunnite
Shotcrete and Gunnite are two of the types of spray coatings we use for both underground and surface applications. Whether it is for a coal company or a state transportation department, we are your local state pre-qualified shotcrete installer.
We can keep your land from washing away in the next rain with one turnkey, low unit price application. We grout river banks, road sides and rock ditches on spillways or impoundments.
Pressure Grouting is the direct pressure injection of a fluid grout or chemical into the ground to fill the spaces or voids in the strata. There are two major types of pressure grouting: structural and water control. Structural pressure grouting, when used in granual soils, permeates the spaces between the soil particles, binds the particles together, and improves the soil's bearing capacity. Water control pressure grouting is used to stop water movement in granular soil or rock. This method forms a water proof mass at the point of injection. When injection points are laid out in a well designed grid pattern, these masses interconnect to form an underground curtain to prevent fluid migration.
Track drills and downhole remote camera systems aid in our bore hole and pressure grouting projects.
Soil Nailing is a great way to economically support an earth slope that would otherwise need to be excavated and a costly retaining wall built which in some cases still won't work. We at Wright Concrete have all the equipment necessary to drill, anchor and spray your most difficult retention projects.
We at Wright Concrete & Construction, Inc. have performed several of these projects both on the surface and underground. All of these were done due to old mine works running too close to active slurry impoundments. Here are examples:
One project was for McCoy Elkhorn Coal Corp. on Johns Creek in Pike County, Kentucky. We drilled horizontal holes around six old drift mouth entries then epoxy resined 2" threaded steel rods deep into the rock face and floor. We then installed »11 epoxy coated rebar on 6" centers and formed a large 10' high x 40' wide in some areas 8' thick block. After pumping these full of concrete with one of our own large concrete boom pumps, we let them set for several days then put steel plates and nuts on the threaded rods and pulled a stress test on each rod to ensure their bonding to rock around each entry. Each one of these concrete bulkheads had two 8~ HOPE pipes running from behind the bulkhead inside the old mine thru each bulkhead and out a filled slope to daylight at the end of a hollow fill. This would help drain any ground water or other materials that may need to be drained from behind the bulkheads.
The AEP Bulkhead Project was performed at their Rob Fork Impoundment in Pike County, Kentucky. These bulkheads were constructed a short distance in from the drift mouth of the old 10-2 mine. We constructed a total of eight bulkheads and one pipe seal at this location. On each there was a 2' trench cut out in the floor creating a sort of key for the wall to set, then a form was prepared 14' thick, 20' wide and from 6' to 8' tall. This form was pumped full of 2000 psi concrete from outside with one of our large line pumps. After fifteen days of setting, we came back and pumped a 10,000 psi non-shrink grout mi* with one of our new Schwing mixer pumps through injection tubes we installed around the form before pumping Phase 1. These tubes were designed to pressure up the seal to surrounding strata and ensure no leakage would occur.