Runway and road subsidence.
We specialize in the rehabilitation of runways and roads through the application of polyurethane resin injection. Subsidence, which refers to the sinking or settling of the ground, can pose serious risks to the integrity and functionality of transportation infrastructure. Our method involves strategically injecting polyurethane resin beneath the affected areas to stabilize the ground, fill voids, and prevent further subsidence. This innovative technique offers numerous advantages, including minimal disruption to traffic flow, rapid installation, and long-lasting results.
The process begins with a thorough assessment of the subsidence issue, including a detailed examination of the soil composition and underlying causes. Based on this analysis, we develop a tailored injection plan to address the specific needs of each project. The polyurethane resin, with its excellent expansion and bonding properties, is injected directly into the ground through strategically placed access points. As the resin expands and solidifies, it forms a strong and stable support system, effectively mitigating the effects of subsidence.
The application of polyurethane resin injection provides several key benefits. Firstly, it improves the load-bearing capacity of the ground, ensuring the stability and longevity of runways and roads. It also fills voids and gaps in the soil, preventing further settlement and reducing the risk of future subsidence. Additionally, the process is cost-effective and time-efficient compared to traditional methods of subsidence remediation. Overall, our expertise in polyurethane resin injection enables us to rehabilitate runways and roads, enhancing their safety, durability, and overall performance.
Mitigation of liquefaction risk in existing buildings
Mitigating the liquefaction risk of existing buildings is an essential engineering requirement. Liquefaction occurs when the soil turns into a liquid state due to factors such as earthquakes, posing a threat to the safety of structures. Therefore, it is of paramount importance to strengthen existing buildings against liquefaction risks.
With our developed method, Soilplus, we achieve ground stabilization by injecting resin underneath the existing buildings. Since each building is unique, the process begins with site investigations, followed by laboratory tests. Subsequently, finite element modeling is conducted, and necessary experiments and trials are performed at the test site before proceeding with the application. Different resins and methods may be employed based on varying conditions.
Our objective is to enhance the safety of buildings against liquefaction risks using scientifically grounded approaches.
Preventing water flow
In this process, a tight barrier is formed in the injected ground as the polyurethane resin expands and hardens. This barrier fills the voids in the soil and prevents the passage of water. The high viscosity of the polyurethane resin enables it to effectively seal micro-cracks and voids. As a result, the soil's water absorption capacity decreases, and the infiltration of water into the structure is prevented. Polyurethane resin injection reduces the permeability of the soil, stopping the spread of water within the ground, and thereby helping to prevent water-related issues.
Mitigation of ground-borne vibration and noise.
To mitigate ground-borne vibration and noise, resin is injected into the ground, reducing the transmission of vibrations and sound. Polyurethane resin fills the voids in the ground, strengthening and reinforcing the structure. This prevents the passage and propagation of vibration and sound waves through the ground. Polyurethane injection also provides energy absorption, significantly reducing the impact of vibration and noise. This method is particularly preferred to address ground-borne vibration and noise issues in areas with heavy traffic, industrial facilities, and near sensitive structures.
Filling of cavities (karstic) in the ground.
Karstic cavities in the ground can be effectively filled using deep polyurethane injection. This method involves injecting polyurethane resin into the voids and cavities present in karstic formations. The polyurethane resin, with its low viscosity and expansive properties, can flow and expand to fill even the smallest crevices and gaps within the ground. As the resin cures and hardens, it forms a durable and stable structure, effectively filling the karstic cavities and providing support to the surrounding ground. Deep polyurethane injection is a reliable and efficient technique for addressing karstic cavities, stabilizing the ground, and mitigating potential risks associated with subsidence or structural instability.