Our Services
Pre-Design Services
- Land, Bathymetric, and Topographic Survey
- Geotechnical Investigation and Lab Testing
- Standard Penetration Test (SPT)
- Cone Penetration Test (CPT)
- Ground Penetrating Radar (GPR)
- Electrical Resistivity (Georesistivity)
- Foundation Assessment and Design
- Slope Stability Assessment and Design
- Hydrologic and Hydraulic Study
- Environmental Impact Assessment
- Quantitative Survey
- Structural Assessment and As-Builting
Civil Infrastructure Services
- Engineering Master Plan
- Highway Transport and Planning
- Pavement Analysis and Design
- Road Infrastructure Design and Alignment
- Terrain Analysis and Grading Design
- Storm Drainage System
- Water Distribution Network System
- Sanitary Sewer and Wastewater Network System
- Boundary Retaining Wall and Slope Protection
- Traffic Engineering & Modeling
- Bridge Assessment and Design
- Structural Design for Infrastructure Facilities
Case Study 01
PROBLEM
Scouring was observed along a 27-meter slope where an existing live outfall is also located. Recurring and intense rainfall in the past had caused the slope to erode where the RCPC outfall was built.
INVESTIGATION/STUDY:
A geotechnical investigation was conducted wherein soil samples were collected and tested for its properties using Direct Shear Test and Dynamic Cone Penetration Test. The existing outfall was studied using hydrologic and hydraulic analysis with the use of software modelling and simulation in determining the discharge velocity of the existing drainage.
CONCEPT & DESIGN:
Diverting the existing outfall in an area where a relatively dense soil will support the new outfall system. An outfall system was designed to reduce the discharge velocity of the outfall to prevent future erosion and scouring. Soil nailing with shotcrete, erosion control matting, and rockfall protection were also designed to maintain slope stability.
Case Study 02
PROBLEM
Heavy rainfall and sustained strong winds in an island in the Philippines resulted in the destruction of properties both infrastructure and agriculture. A slope failure had occurred wherein an area in the revetment close to the tailrace has collapsed after the onslaught of the typhoon.
INVESTIGATION/STUDY:
A geotechnical investigation was conducted in the collapsed/exposed area, and it was observed that the fill material composing of coarse-grained soil and cobbles were wet indicating that the occurrence of seepage. Samples were also taken on site for laboratory testing to determine the properties and strength of the fill material. Topographic and bathymetric surveys were also conducted near the area where the failure… occurred which will be critical in designing the appropriate system in addressing the problem. Furthermore, a hydrology and hydraulic study were also conducted using simulation and modelling of the flow of the water from HEPP to discharge and impact. A slope stability study was also conducted to design an effective slope protection for the compromised revetment. Read more
CONCEPT & DESIGN:
A plunge pool was designed to dissipate the flow of the water following its discharge from the spillway. A setback distance for the revetment away from the ski jump bucket to avoid close impact from the discharge of water. Modifying the lip angle of the ski jump bucket to increase the trajectory of the water farther away the revetment wall. New wing wall and revetment wall were also designed considering the tailrace flow and discharge to protect against possible erosion and scouring of the slope.