THE SEAWALL REPAIR SPECIALISTS
HAVING SEAWALL PROBLEMS?
AVOID COSTLY REPAIRS BY CALLING STABLE SOILS
AT (352) 433-2323
Specializing in Residential and Marina Seawalls
|FACT: The cost of repairing a seawall using our method is typically less than half the cost of replacement and will likely double the life of your seawall!
HOW WE DO IT
To properly repair a seawall and to eliminate soil loss, it must be sealed AND vented to help alleviate the extreme pressures that are present.
Our repair method involves a 2-part approach to accomplish both the above tasks
Step 1: Properly evaluate the drainage of the soils adjacent to the wall, landward to the structures. Can this water be evacuated by land-born drains? Can this water be pumped out or purged into the existing storm drainage? Are there currently drains of any type installed? If not, options need to be explored. Venting the contained water through the seawall is an option if the drain field is properly constructed utilizing vented piping and soil retaining cloth along with 1-way check-valves located at the wall. The trick is to let land born water into the canal but restrict canal water inflows.
Step 2: Inject our 1-part, rigid polyurethane soil stabilization resin into and below the soils directly behind the current seawall panel to create a rock hard, water tight mass of impermeable soil. This low viscosity resin will bond and strengthen the soils to form a curtain of protection to totally eliminate voiding soils and to fortify and super-strengthen the wall. Unlike traditional concrete injection, our resins are very lightweight and excavate the water in the soils during injection. Trying to fortify your wall with traditional concrete will create several issues. Concrete shrinks during cure (days to cure) and is extremely heavy (3800+lbs. per cubic yard)! Introducing these weights on already weak soils will spell disaster as it will continue to settle for years! Chemically treating soils (cure time, 8-24hrs) is like making concrete out of the soils that are present without the weight! We insert very small, 1/8 stainless steel injection rods to the desired depth and begin pumping the resin under pressure while extracting the rods at 1-foot intervals. The resin penetrates and saturates the soils bonding, solidifying and waterproofing in one step! And these products last for decades. In fact, this technology has shown excavated, treated areas are still providing seal 50+ years after installation. AND, all of these products are inert and harmless to our environment and sea life! Some products are even ANCI/NSF certified for use in potable water tanks!
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for Rates, Service Details, and Scheduling Availability!
QUICK, EASY, NON-DISRUPTIVE and READY TO USE IN A COUPLE OF HOURS... NOT DAYS!
LEARN MORE: Weak Soil Zones
Because seawalls are built above normal tidal or current levels, they should be supported by properly compacted soil. This will allow water pressures exerted during high tide to be equal to the solid contained soils. However; with the change in tide, more stress and pressure exist from the soils, water, and gravity on the landward side, as they try to equalize as the water levels drop.
If left unattended, these weak soil zones will continue to expand, and over time, may reach the Deadman Tieback System (see image on right). Should the soils weaken in this area, the king piles and panels WILL begin to rotate and seperate. Once this occurs, total seawall replacement is the only, very expensive, very messy option! To make matters worse, if buildings or structures are located close to the seawall and problems occur, you will eventually see stress fractures, then gradual settlement and the possibility of structural failure.
Typically, the soils that are supporting the structures are very weak due to their source. Most seawall neighborhoods are constructed on strips along excavated canals. When the canals were originally constructed, the spoil dirt from the canal was stacked to form the strips upon which your home or condominium is now located. Within these excavated soils you may find wood/ tree debris, aquatic animal remains, and anything else that was present during excavation. This matter is organic in nature and either has failed, or will eventually decay, leaving voids and weak zones.
LEARN MORE: Physics of a Seawall
Seawalls can be an engineering marvel if constructed correctly. Frequently their construction is less than satisfactory and after several years begin to show signs of stress and/or begin eroding soil. This poses a dangerous threat to persons near or adjacent to the walls after erosion begins due to voiding of the soils. Often, these voids are covered by vegetation and are hidden from casual view. Seawalls can also pose a huge threat to nearby buildings and structures once the erosion cycle starts. Once this process starts, its a constant battle to continue filling these voids with new soil to retain proper soil compaction to support these structures.
Lets examine the physics of a seawall
Seawalls serve a fabulous purpose! They are designed to repel water (ocean, lake, river) as well as contain the neighboring soils, while also getting constantly beaten and worn by weather, gravity, rising and falling tides, boat wakes, currents, seasonal water level changes, etc. During heavy rain events, seawalls must be able to exhale the newly introduced water in the soils into the adjacent water body. If they are not exhaled, extreme hydraulic pressure will be exerted on the seawall. Because water seeks the path of least resistance, it will eventually find a weak area (panel joint, attachment anchor) or eventually crack a panel. In a worse-case scenario, the water will exit underneath the seawall panels taking soil with it. This can cause extremely weak soils and evacuate the upper soils at a very rapid pace. And, because the weak soil zones can and do happen at any vertical level in the surrounding, adjacent soils, collapse can occur. More commonly, the soils located directly behind the seawall begin to weaken and create voids. We have had cases where you could actually see the soil color difference in the water, directly below the bottom of the seawall structure! The same is not necessarily true when the pressures are reversed in a properly sealed and vented seawall.
Case Study: Residential Seawall, Crystall River, FL
Case Study: Ormond Seawalls, Ormond Beach, FL
LAKE PARK MARINA
SEAWALL REPAIR AT THE MARINA HARBOR
Voids had developed beneath the sidewalks and under the toe of the seawall, plus many of the joints were leaking....
READ ENTIRE CASE STUDY
MARINA MANAGERS KNOW WHO TO CALL!
Professional Marina Managers know who to call when faced with settling launch slabs!
This Marina, located in Stuart, Florida was experiencing slab settlement adjacent to the seawall bulkhead, causing the apron slabs to settle and then eventually fail. After inspection and drilling several probe holes through the slabs, it was very apparent that soil loss was occurring!...
READ ENTIRE CASE STUDY
SEAWALL REPAIR AND RESTORATION
The residence owner contacted Stable Soils of Florida to inspect and provide a solution to repair their existing CMU Concrete block poured cells solid seawall on Blue Run....
READ ENTIRE CASE STUDY
Trust your Seawall to Stable Soils
QUICK, CLEAN, QUIET!
No heavy equipment, minimal noise (small, truck-mounted pumps), and extremely quick! AND, because this product is injected, there is really no evidence of repair!
Contact Stable Soils of Florida today for a free site inspection and proposal. We have over 80 years of combined hands-on
experience here in Florida!
Call us: (352) 433-2323