The creekside area of Malaking Ilog in San Jose, Batangas, faced critical structural challenges due to erosion and water-induced damage. The existing concrete structure near the creek had developed significant cracks, rendering it unsafe and unsustainable. Prolonged exposure to water flow and the inherent instability of the area made it evident that a robust, long-term solution was essential.

Addressing these challenges required an innovative approach that could provide stability, withstand seismic forces, and ensure environmental compatibility. Maccaferri’s Mechanically Stabilized Earth (MSE) Wall offered the perfect solution. By combining advanced geotechnical materials like the Terramesh® System and MacGrid WG 8, the project successfully mitigated the risks of erosion and structural failure while adhering to the highest safety and sustainability standards.

The Challenge: Addressing Creekside Erosion and Structural Instability

The bottom section of the project site lay adjacent to a creek, exposing the existing concrete structure to constant water impact. Over time, this proximity caused severe cracks and erosion, compromising its stability. Replacing the structure was essential, but the solution needed to address key challenges:

• Seismic Activity: The site required a solution capable of withstanding earthquakes common to the region.
• Erosion Resistance: The replacement needed to endure water-induced wear over time.
• Environmental Harmony: Aesthetic and eco-friendly solutions were prioritized to minimize disruption to the natural environment.

The Solution: Mechanically Stabilized Earth (MSE) Wall

After careful evaluation, the MSE Wall emerged as the ideal solution for the project. Designed to tackle both structural and environmental challenges, the wall leveraged advanced materials and engineering principles to ensure site stability and longevity.

Key benefits of the MSE Wall include:

• Seismic Resistance: Engineered to absorb and dissipate seismic forces.
• Durability: Capable of withstanding prolonged exposure to water and erosion.
• Aesthetic Integration: The boulder-facing design complements the natural surroundings.

The construction featured Maccaferri’s reliable and high-performance materials:

• Terramesh® System: Delivered robust structural reinforcement while providing an aesthetically pleasing finish.
• MacGrid WG 8 MonoAxial Geogrids: Utilized 21 rolls to ensure superior soil stability and reinforcement.

The project commenced on December 1, 2022, and was completed within seven months, concluding on July 29, 2023. This innovative solution was designed by the Department of Public Works and Highways (DPWH) Batangas 4th DEO and implemented in collaboration with the contractor, IKM Builders.

Sustainability in Action

A key aspect of this project was its commitment to sustainability. By leveraging locally sourced materials such as boulders and minimizing environmental disruption, the MSE Wall demonstrates the feasibility of environmentally conscious infrastructure. The use of Maccaferri’s innovative solutions reflects a forward-thinking approach to combining site stability with ecological stewardship.

The IKM MSE Retaining Wall in San Jose, Batangas, stands as a testament to the power of engineering innovation and collaboration. By addressing erosion, enhancing seismic resilience, and prioritizing sustainability, the project safeguards the local community while setting a benchmark for future urban infrastructure developments in the Philippines.

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