Reinforced Soil Walls and Slope Reinforcement
2020
DAVAO CITY, DAVAO DEL NORTE - REGION XI - Philippines
3W Construction
DAVAO CITY DIVERSION ROAD
June 2016 – Site Preparation
DAVAO CITY DIVERSION ROAD_1
DAVAO CITY DIVERSION ROAD_2
DAVAO CITY DIVERSION ROAD_3
DAVAO CITY DIVERSION ROAD_4
April 2017 – Project Vegetated
Problem
A 200m-long portion of Davao City Diversion Road has been rehabilitated due to slope collapse, particularly along KM 1509+340 to KM 1509 +540. A vegetated mechanically-stabilized earth (MSE) wall system that maximizes in situ materials, economical, and easy to build was required by the project proponent – the Department of Public Works & Highways (DPWH).
Solution
Based on the survey data provided by DPWH Engineers, a seven-meter high MSE wall was designed using Maccaferri’s MacWeb 3D cellular confinement system as fascia and MacGrid woven polyester geogrids as soil reinforcements. The recommended MSE wall system provides an inclined facing that promotes establishment of vegetation. Likewise, a scouring protection Reno mattress was placed at the toe, extending from the footprint of the MSE wall for additional foundation stability. The reinforced backfill of the MSE wall was compacted to minimum 95% of MDD by Standard Proctor. Moreover, the downslope portion of the MSE wall was found to be composed of loose fill materials that are dumped prior to the construction of MSE wall. It has been recommended that the said portion be re-graded and properly compacted. Also, it must be vegetated to ensure stability against erosion.
Used Products
Gabions
Maccaferri Gabion is a Double-Twisted “DT” wire mesh container of variable sizes uniformly partitioned into internal cells, interconnected with othView
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
MonoAxial GeoGrids
Geogrids are used mostly for reinforcement purposes considering their peculiar structure is able to provide the necessary strength to reinforce theView