GeoTech PRE-CONSTRUCTION PIERS, SINKHOLE REPAIR, SOIL & STRUCTURAL STABILIZATION

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1 GeoTech PRE-CONSTRUCTION PIERS, SINKHOLE REPAIR, SOIL & STRUCTURAL STABILIZATION

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3 We re ready when you need us, providing the highest quality service, with a commitment to integrity, that will exceed your expectations. Helicon is a licensed general contractor leading the industry in pre-construction piers, sinkhole repair, and soil and structural stabilization. At Helicon, we are dedicated to understanding and solving our clients problems the best way possible. We invest in extensive training for our Helicon Repair Teams and equip them with state-ofthe-art tools and expertise needed to execute a flawless and professional repair experience. GEOTECH PRE-CONSTRUCTION SINKHOLE TABLE OF CONTENTS 04PROCESS 06GEOTECH CONSTRUCTION 08PRE-CONSTRUCTION 26 SINKHOLE REPAIR

4 PROCESS Evaluate Protect Emergency Service Dedicated Project Managers Minimally Invasive Repairs Helicon is the premier Geotech Construction company in Florida that is ready to answer the call when it comes to the safety of your property. Our team of experts react quickly when speed is critical and promises to be understanding and transparent through every step of the process. Depending on your needs, we will be at your property as soon as possible to assess the situation and begin work. We assign every client a dedicated Project Manager to answer any questions, assist with insurance claims, and get you the best possible outcome during this stressful time. Your property is important to you, which is why it is important to us. Helicon takes extra precautions to maintain the integrity and beauty of your property as we work. During any kind of project, we strive to be as minimally disruptive or invasive as possible. 0 4 PROCESS React

5 Restore Rebuild Quality Materials Peace of Mind We know that our work is only as good as our team, equipment, and materials. Helicon is equipped with the highest level machinery, certifications, and training so when we do a job, we do it right. While our prices are competitive, you will always get the best workmanship and materials. Our job is to provide a peace of mind to our clients once we have completed each project. We want to rebuild the confidence that your property is more secure than ever before. To ensure that, we provide a Firm Foundation Warranty on all projects that Helicon completes.

6 GEOTECH QUALITY WORK, GUARANTEED TO LAST. 06 GEO T ECH With Helicon you get a firm foundation warranty of protection, at no additional cost to you or future owners of your property. It s a promise no other company offers, plus we have a history of zero re-occurrences.

7 Geotech With Florida primarily built on limestone, it makes for a prime candidate for unpredictable sinkholes. However, cracks in floors, walls, and pavement; foundation exposure and unusual lawn activity; doors and windows failing to close properly; or cracks in your driveway can all be signs of a sinking foundation here in Florida or elsewhere in the United States. The Right Repair For Your Property Sinkholes can vary in severity and depth, which can influence the type of repair best suited for your property. Helicon s team is licensed and trained to stabilize a wide range of loose foundations. Underpinning Helical Piers Grout Injection Piers Pre-Construction Piers Compaction Grouting Chemical Grouting Permeation Grouting Slurry Grouting Helical Tie-Backs

8 PRE-CONS TRUC T ION 08 PRE - CONS T RUC T ION We re ready when you need us, providing the highest quality service, with a commitment to integrity, that will exceed your expectations.

9 Pre-Construction Process Pre-Construction Drilled Piers New construction underpinning is an increasingly popular method to prevent future foundation problems. By installing a pre-construction pier system prior to laying your foundation, you can ensure that the structure will rest on a solid base. Advantages Versatile - can be installed to support any load Installation is very fast Safely & permanently transfers the weight of a structure onto a solid bedrock Safe to install in environmentally sensative areas Pre-Construction Helical Piers Protect your foundation before the construction of your home or business with helical pier installation. The helical pier foundation can be devised to resist or support any load or application Advantages Can be installed year round Round shaft has a high resistance to bending Galvanized steel resists corrosion for long life Cannot be seen after installation No vibrations to neighbors Can be installed in tight spaces Cost effective

10 PRE-CONSTRUCTION PRE-CONSTRUCTION PIERS TIMBER PILE (WOOD) Pre-Construction Helical Piers DEPTH LIMIT TORQUE LIMITED Subject to soil density NO NO Load is transferred through problematic soils to load bearing strata to achieve proper torque. The piles are easy to handle and are available in multiple lengths. Can be driven in hard soil conditions and to greater depths. Higher load capacity Faster and easier installation, and lower overall cost. Groutable Can be encased in concrete, if required. Greater design flexibility for the engineer. Many design options available. Less impact while driving into the ground minimizing seismic wave activity LOAD MAX (KIPS) ROCK PENETRATING FAST INSTALL HEAVE SUSCEPTIBLE SETTLEMENT SUSCEPTIBLE GALVANIZED >137 kips (2½ O.O) certified YES YES NO NO YES 20 to 100 kips NO Moderate Yes (friction pile) Yes (friction pile) NO AFFECTED BY GROUNDWATER NO Potentially SUBJECT TO COLLAPSE NO NO SUSPECT TO POUNDING 10 PRE-CONSTRUCTION Limitations of Timber Piles Salt water corrosion limits life of piles. Pile Cap installation costs are greatly increased due to deep excavation requirements where sub-soil water level is very low. Low joint strength limits the depth of the timber piles. Lower load-bearing capacity. Timber piles must be cut off below the permanent ground water level to prevent decay. If the water table at a site is at a greater depth, extra cost of excavation needed to provide the pile cap may render the choice uneconomical. Increased safety concerns during installation in filled-in ground.

11 Pre-Construction Drill-In Piers Pre-Construction Bracket This pre-construction bracket can be ordered in several sizes square seats made from ¾ thick steel with four support gussets for added structural support space. The top seat can be ordered with pre-drilled holes for foundation rebar tie-in. Pre-Construction Drill-In Pipe This drill-in pipe is available in either or 3.5 O.D. Schedule 80 P110 grade. The pipe is threaded with a triple-start thread for ease of installation and can be hot- dipped galvanized, when necessary, to ASTM A-153 standards, ensuring decades of rust and corrosion resistance. Geo Drill Starter Bit The drill starter bit used is a sacrificial bit with carbidetipped cutting heads adequately spaced from the tip of the pipe allowing enough space for grouting, if necessary. The drill starter bit is durable enough to drill into competent rock securing the pier directly into the bedrock. This technique is optimal when reaching limestone layers going through to solid bedrock.

12 Pre-Construction Helical Pier System Top Plate / Bracket Multiple sized top plate / brackets are designed to meet the needs of any foundation support application. Top plates range in size from 6 to 16. All of our brackets are made from high-tensile strength steel and comprised of CNC machined parts, ensuring precision and accuracy. In addition, all brackets are robotically welded guaranteeing a quality product every time. All brackets have been field and lab-tested and can be powder-coated or galvanized. Pre-Construction Helical Piers Helical pipes can be ordered with single, double or triple helixes, with 8, 10 or 12 blades (or a combination of each). The helical pipe is made of O.D. schedule 40 or schedule 80 pipe with two bolt holes and an outer nipple connector. Helical extensions are also available. Standards lengths are 4, 5, 6 and 7. Optional powdercoating or galvanization available.

13 Pre-Construction helical piers are placed prior to the foundation being laid. These piers are screwed into competent soil supporting the weight of the structure using a single, double or triple helical configuration. Pre-Construction helicals ensure life-long stability and strength of the foundation, protecting the structure and eliminating the need for costly foundation repairs in the future. Top Plate / Bracket Machined plate Bracket robotically welded 70 kips load capacity Modifications available based on engineering specifications Pre-Construction Helical Pipe Standard sizes are O.D. and 3.5 O.D. Schedule 40 or 80 pipe available Available in 4 to 7 sections Two bolt holes and an outer nipple connector Galvanization or powder coating available

14 Pre-Construction Drill-In Pier System Top Plate / Bracket Multiple sized top plate / brackets are designed to meet the needs of any foundation support application. Top plates range in size from 6 to 16. All of our brackets are made from high-tensile strength steel and comprised of CNC machined parts, ensuring precision and accuracy. In addition, all brackets are robotically welded guaranteeing a quality product every time. All brackets have been field and lab-tested and can be powder-coated or galvanized. Pre-Construction Drill-In Pipe Our pre-construction drill-in pipe is made from P110 grade high tensile strength drill stem rods. It has a standard triple start thread pattern that facilitates easy alignment with easy on/off thread turns. Thread patterns are also available with single and double start threads and can also be custom-made to meet customer s needs. Available lengths - 3, 4, 5 and 7. Pre-Construction Starter Bit Drill starter bits are made from high tensile strength drill stem rod with three or four carbide-tipped teeth. One carbide tooth is angled slightly inward to break up the core and prevent clogging. This drill starter bit will penetrate rebar, concrete & asphalt with ease. Available lengths - 3, 4, 5 and 7.

15 Pre-Construction Bracket ITEM DESCRIPTION QTY 1 3/4 in. A36 Hot Rolled Steel 1 2 1/2 in. Support Gusset /8-3 Schedule 80 Pipe 1

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17 Sinkhole Repair Process Structural Stabilization Underpinning rests your property s foundation Underpinning rests your property s foundation on underground steel piers. These steel piers on underground steel piers. These steel piers safely and permanently transfer the weight of safely and permanently transfer the weight of a structure onto solid bedrock or load-bearing structure onto solid bedrock or load-bearing strata. In some cases, Helical Piers are used strata. In some cases, Helical Piers are used for for more shallow stabilization of load bearing shallower stabilization of load bearing walls. For walls. For additional stabilization, Injection additional stabilization, Injection Piers combine Piers combine Compaction Grouting and Compaction Grouting and Underpinning Underpinning methods for the most stable methods for the most stable foundation repair. foundation repair. Underpinning Tie-Backs Helical Piers Injection Piers Soil Stabilization For deep sinkholes, Compaction Grouting fills voids and stabilizes weak soil down to the bedrock. Chemical Grouting is the safest and most accurate method of filling sinkhole voids and densifying loose soils that exist within 15 feet of the surface. Compaction & Chemical Grouting

18 18 SOIL STABILIZATION GEOTECH SOIL STABILIZATION Step One: Drilling The TRX1000 surgically drills injection points, spaced ten feet apart, all the way down to the limestone - alternating the pipe-insertion angles from 90-degrees to 75-degrees. Notice the plywood under the wheels to protect your landscaping. Step Two: Grout Preparation A concrete truck - with a protective plastic shield under the wheels - pours grout into the TK40. This state-of-the-art pump pushes a special mixture of sand, cement, and fly ash through a pipeline into areas under your home. 2 HeliconUSA.com Soil Stabilization Compaction Grouting Chemical Grouting Underpinning Injection Piers Helical Piers Pre-Construction Piers Lifting and Leveling

19 Step Three: Grout Pumping and Evaluation A Helicon foreman uses a transit with cards to track the upward movement of the foundation. A pressure gauge is used to carefully monitor underground pressure. Wooden blocks under the pipe protect your property. 3 Step Four: Pipe Extraction Our extractor removes the pipes once the soil zone is remediated and filled. On the surface, our techniques are minimally invasive - and we take extra steps to protect your property. Chemical Grouting The best solution for shallow sinkholes is chemical grouting. It s also a good remedy for problems that occur close to the surface - where compaction grouting is not an option. Underpinning Sometimes foundations shift because the upper level of soil is loose. Underpinning lifts and re-levels homes by driving steel piers into solid bedrock, safely and permanently transferring the foundation s weightload. Compaction Grouting This sinkhole repair method caps and seals the limestone surface, fills voids, and pushes weak soil - compacting and strengthening it.

20 GEOTECH Soil & Structural Stabilization Compaction Grouting This sinkhole repair method caps and seals the limestone surface, fills voids, and pushes into weak soil, compacting and strengthening it. Chemical Grouting The best solution for shallow sinkhole repairs is chemical grouting. It s a good remedy for problems that occur close to the surface - where compaction grouting is not an option. Injection Piers Injection piers are one of the most stable methods of foundation repair, injecting a low slump, low mobility, aggregate grout solution, through pins, into the ground to fill voids and stabilize the soils in addition to the structural stability of the pier. Underpinning Sometimes foundations shift because the upper level soil is loose. Underpinning lifts and re-levels homes by driving steel piers into solid bedrock, safely and permanently transferring the foundation s weight load. 20 SOIL S TA B IL I Z AT ION Helical Piers Helical Pier installation is ideal for stabilizing existing structures that have been damaged due to settlement. The weight of a structure s load bearing walls is transferred off the weak soils and onto the helical piers. Pre-Construction Piers By installing a deep underpinning foundation system prior to laying your foundation, you can ensure that the structure will rest on a solid base.

21 Helical Piers Lift Brackets Helicon offers 2 different foundation brackets (Heavy duty and standard) designed to meet the needs of any foundation support application. All of our brackets are made from high-tensile strength steel and comprised of CNC machined parts, ensuring precision and accuracy. Helical Piers Helicon uses various sized helical underpinning pipes. Helical pipes can be ordered with single, double or triple helixes, with 8, 10 or 12 blades (or a combination of each). Helical extensions are also available. Standards lengths are 4, 5, 6 and 7. Optional powdercoating or galvanization available.

22 Helical Lift Brackets 12, 24 or 36 seat 4 guide tube Machined bottom and top plate Two all-thread bolts Two nuts 4 starter pipe with soil plug Helical Pipe Standard sizes are O.D. and 3.5 O.D. Schedule 40 or 80 pipe available Available in 4 to 7 sections Two bolt holes and an outer nipple connector Galvanization or powder coating available

23 Drill-In Pier Lift Brackets Helicon offers 2 different foundation brackets designed to meet the needs of any foundation support application. Choose between our standard duty lift bracket or our heavy duty lift bracket. All of our brackets are made from high-tensile strength steel and comprised of CNC machined parts, ensuring precision and accuracy. In addition, all brackets are robotically welded guaranteeing a quality product every time. All brackets have been field and lab-tested and can be powdercoated or galvanized. Drill-In Pipe Our drill-in pipe is made from P110 grade high tensile strength drill stem rod. Helicon has a standard triple start thread pattern that facilitates easy alignment with easy on/off thread turns. Thread patterns are also available with single and double start threads and can be custom-made to meet customer s needs. Available lengths - 3, 4, 5 and 7. Drill-In Starter Bit Drill starter bits are made from high tensile strength drill stem rod with three or four carbide-tipped teeth. One carbide tooth is angled slightly inward to break up the core and prevent clogging. This drill starter bit will penetrate rebar, concrete & asphalt with ease. Available lengths - 3, 4, 5 and 7.

24 Helicon s drill-in piers are perfect in situations where tough soil layers such as rock or clay impede the movement of a standard push pier. Drill through any difficult soil type effortlessly with our carbide toothed drill starter bit. Similar to the push pier, these piers are drilled directly down to load bearing strata, effectively supporting the foundation, preventing damage from future settlement and movement. Drill-In Lift Brackets 12, 24 or 36 seat 4 guide tube Machined bottom and top plate Two all-thread bolts Two nuts 4 starter pipe with soil plug Drill-In Pipe Available lengths - 3, 4 and 5 Available threads - single, double and triple-start Available O.D. sizes and 3.5 High-tensile strength drill stem rod Custom lengths and diameters also available

25 Injection Push Pier Injection Lift Brackets Helicon offers 2 different foundation brackets designed to meet the needs of any foundation support application. Choose between our heavy duty injection lift bracket or our medium duty injection lift bracket. All of our brackets are made from high-tensile strength steel and comprised of CNC machined parts, ensuring precision and accuracy. In addition, all brackets are robotically welded guaranteeing a quality product every time. All brackets have been field and lab tested and can be powder-coated or galvanized. Injection Push Pipe Helicon offers foundation support piers for grout injection, designed to be installed directly to load bearing strata. All piers are used in conjunction with our injection lift brackets to stabilize and strengthen existing foundations. All pins are engineer certified and field and labtested. Can be galvanized or powder-coated.

26 Our injection underpinning push piers are the perfect union between compaction grouting and our standard push piers. These piers are initially pushed to bedrock, sufficiently supporting the weight of the structure. Grout is then pumped through the machined threaded hole in the bracket top plate and into our patented perforated pipe, allowing grout to flow out, filling voids and compacting surrounding soils, securing the pier in place. Grout Injection Lift Brackets Threaded hole in top plate for grout injection 12, 24 or 36 seat 4 guide tube Machined bottom and top plate Two all-thread bolts Two nuts 4 perforated starter pipe with soil plug Grout Injection Push Pipe Standard sizes are O.D. and 3.5 O.D Schedule 40 pipe available Available in 3 to 5 sections Crimped nipple connector for a precise fit Galvanization or powder coating available

27 Underpinning Push Pier Lift Brackets Helicon offers 2 different foundation brackets designed to meet the needs of any foundation support application. Choose between our heavy duty lift bracket or our medium duty lift bracket. All of our brackets are made from high-tensile strength steel and comprised of CNC machined parts, ensuring precision and accuracy. In addition, all brackets are robotically welded guaranteeing a quality product every time. All brackets have been field and lab tested and can be powdercoated or galvanized. Push Pipe Helicon offers several types of foundation support piers, designed to be installed directly to load bearing strata. All piers are used in conjunction with our lift brackets to stabilize and strengthen existing foundations. All pins are engineer certified and field and lab-tested. Can be galvanized or powder-coated.

28 Our underpinning push pier is perfect when strengthening and supporting a faulty foundation is needed. These piers are used to both stabilize the foundation and prevent further settling activity. These structural piers are hydraulically driven to load-bearing strata ensuring the weight of the structure is adequately and evenly distributed on the bedrock. The push pier is indicated in many foundation repair applications and designed to be installed easily with our portable power pack and drive totem. Underpinning Push Pier Lift Brackets 12, 24 or 36 seat 4 guide tube Machined bottom and top plate Two all-thread bolts Two nuts 4 starter pipe with soil plug Underpinning Push Pipe Standard sizes are O.D. and 3.5 O.D. Schedule 40 or 80 pipe available Available in 1 to 5 sections Crimped nipple connector for a precise fit Galvanization or powder coating available

29 Solid Push Pier Lift Brackets Helicon offers 2 different foundation brackets designed to meet the needs of any foundation support application. Choose between our heavy duty lift bracket or our medium duty lift bracket. All of our brackets are made from high-tensile strength steel and comprised of CNC machined parts, ensuring precision and accuracy. In addition, all brackets are robotically welded guaranteeing a quality product every time. All brackets have been field and lab tested and can be powdercoated or galvanized. Push Pipe Helicon offers several types of foundation support piers, designed to be installed directly to load bearing strata. All piers are used in conjunction with our lift brackets to stabilize and strengthen existing foundations. All pins are engineer certified and field and lab-tested. Can be galvanized or powder-coated.

30 Our solid underpinning push pier is perfect when strengthening and supporting a faulty foundation is needed. These piers are used to both stabilize the foundation and prevent further settling activity. These structural piers are hydraulically driven to load-bearing strata ensuring the weight of the structure is adequately and evenly distributed on the bedrock. The push pier is indicated in many foundation repair applications and designed to be installed easily with our portable power pack and drive totem. Solid Push Pier Lift Brackets 12, 24 or 36 seat 4 guide tube Machined bottom and top plate Two all-thread bolts Two nuts 4 starter pipe with soil plug Solid Push Pipe Standard sizes are O.D. and 3.5 O.D. Schedule 40 or 80 pipe available Available in 1 to 5 sections Crimped nipple connector for a precise fit Galvanization or powder coating available

31 We guarantee our work with a Firm Foundation Warranty. Helicon s warranty completely protects you with the most comprehensive warranty in the industry and you could easily save thousands of dollars in sinkhole coverage premiums by using Helicon for your restoration project. FIRM FOUNDATION WARRANTY How can Helicon offer extra protection? Superior materials, superior technology and superior track record Get real insurance savings & peace of mind. Only possible when you build your future on a Firm Foundation. THE FIRM FOUNDATION WARRANTY. NO OTHER COMPANY OFFERS IT. OR ANY THING LIKE IT.

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33 I believe in keeping the promises we make to clients. That s how I founded Helicon, and I strive to always run a company that can be trusted. JAY SILVER, FOUNDER Connecting With Us Corporate Office 844-HELICON HeliconUSA.com North 46th Street Building B Tampa, FL If you have concerns about your property s foundation, give Helicon a call. Hear the latest news on Geotech Construction by visiting Helicon s website.

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