Reinforced Soil Walls and Slope Reinforcement
2020
CARMONA, CAVITE - REGION IV-A - Philippines
DPWH Cavite 1st District Engineering Office
CARMONA-GMA BRIDGE ABUTMENT
CARMONA-GMA BRIDGE ABUTMENT_0
CARMONA-GMA BRIDGE ABUTMENT_1
CARMONA-GMA BRIDGE ABUTMENT_2
CARMONA-GMA BRIDGE ABUTMENT_3
Problem
An old truss-type steel bridge connecting the towns of Carmona and General Mariano Alvarez in Cavite, Philippines has undergone rehabilitation to decongest traffic in the area by constructing two new single lane bridges on both sides of the existing structure. In order to install the bored pile foundations and piers of the new bridges, a temporary passageway for heavy equipment was made by cutting about 20 meters high through an existing slope on one side of abutment. As soon as the installation of the columns and piles is finished, the removed soils have to be filled again. The backfill materials required a retaining structure in such a way that the abutment’s integrity was maintained.
Solution
Maccaferri engineers designed a retaining structure composed of Terramesh system units. Terramesh system is typically used for construction of mechanically-stabilized earth (MSE) walls. The reinforced zone of the MSE wall was primarily strengthened with Maccaferri’s MacGrid high tenacity woven polyester geogrids. Aside from the wall’s structural integrity, ease of installation, and significant cost savings compared to reinforced concrete gravity walls, another distinct advantage of Terramesh System MSE wall is its ability to be fitted to the abutment’s non-standard geometry requirements.
Used Products
TerraMesh
Maccaferri Terramesh® Family includes different facing options to build a Mechanically Stabilized Earth (MSE) structures and Reinforced Soil SlopesView
Tunnelling – Drain Pipes
Micro-perforated plastic drainage pipes for the consolidation of soils within tunnel excavations. The plastic drainage tubes are inserted into a prView
Nonwoven Geotextiles
Nonwoven geotextiles are flat textile structures consisting of synthetic fibres casually assembled by needle punching and/or thermal processes; theView