Geotechnics Philippines, Inc. was organized on October 18, 1966 by a group of professionals; F.F. Cruz, A.L. Juinio, P.C. Reyes, J.M. De Castro and S.F. Reyes and this was formed to provide professional services on Geotechnical, Geological and Foundation Engineering Services.
The company has established database nationwide and has developed standards and systems in conformance with F.F. Cruz & Co. Inc., Philips Technical Consultant, Inc. DCCD Engineering and U.P. Building Research Service.
Be it on-land and off-shore investigation, the company can provide technical and logistical support for land survey, marine survey and aerial survey.
We are proud to introduce our state-of the art instruments for measuring load and deformations as well as characterization of sub-surface using applied physics and best quality core sampling.
Our research and development group, together with the quality management and experienced has given us the edge on this field of services.
ACCREDITATION AND MEMBERSHIP
TEXTURE, PLASTICITY & DENSITY CHARACTERISTICS
[12,400 ft-lb/ft (600 kN-m/m)]
[56,0000 ft-lb/ft (2,700 kN-m/m)]
ROCK DEFORMATION AND STRENGTH
GROUND PENETRATING RADAR
Ground Penetrating Radar (GPR) is a Geophysical method that uses radar pulses to image the subsurface. For Engineering application, it locates Buried structures, Utility lines and Studying soils and bedrock. For Environmental remediation, It is use to define Landfill, Contaminant plumes and other remediation sites.
Soil Resistivity is a measure of how much the soil resists the flow of electricity, soil resistivity measurements have a three fold purpose.
SEISMIC REFRACTION SURVEY (ASTM D5777)
The seismic refraction method is based on the measurement of the travel time of seismic compression waves refracted at the interfaces between subsurface layers of different velocity.
850 meters Seismic Refraction Survey - Limay, Bataan
MULTICHANNEL ANALYSIS OF SURFACE WAVE (MASW)
One of the seismic survey methods evaluating the elastic condition (stiffness) of the ground for geotechnical engineering purposes which utilized Shear wave in the process.
2D MASW active survey Cement Plant - Norzagaray, Bulacan
1D MASW Active and Microtremor (Passive) survey Power plant, Toril Davao
Equipments: ABEM, Sweden; 4.5 Hz, 10Hz Gisco geophone, USA
CROSSHOLE SEISMIC (ASTM D4428)
The seismic cross hole method provides a designer with information pertinent to the seismic wave velocities of the materials in question. This data maybe used as input into static/dynamic analyses, as a means for computing shear modulus, young’s modulus, and Poisson’s ratio, or simply for the determination of anomalies.
Crosshole test power plant Cagayan
DOWN HOLE SEISMIC TEST (ASTM D7400)
The method provides in-situ P and S wave velocities essential for use in geotechnical foundation designs. The results are used in analyses of soil behavior in both static and dynamic. Another use is to estimated shear wave velocities in geotechnical designs in liquefaction assessment of soils.
Manufacturer: Soils Engineering & Geophysics, Inc. – Mississippi, USA
FALLING WEIGHT DEFLECTOMETER
Manufacturer: GRONTMIJ, Denmark
Applies a load to the pavement inducing a deflection bowl similar to the one of a passing truck.
A Pressuremeter test is an in-situ stress controlled loading test performed on the wall of a borehole using a cylindrical probe which can expand radially.
From the test readings (volume variation based on controlled pressure), a stress-strain curve can be obtained, in the case of plane deformation, which yields:
The KD Pro Thermal Unit using the single probe method.
This method employs a heat source inserted into the soil whereby heat energy is applied continuously at a given rate. The thermal properties of the soil can be determined by analyzing the temperature response adjacent to the heat source via a thermal sensor. This method reflects the rate at which heat is conducted away from the probe.
TEMPERATURE, LEVEL, CONDUCTIVITY
The TLC Meter operates in a range from –15°C to +50°C (23°F to 122°F). You may choose to have the readings displayed on the LCD screen in °C or °F. Accuracy is +/- 0.3°C in Celsius, or +/-0.5°F in Fahrenheit. Conductivity measurements are temperature sensitive. The ‘smart’ TLC probe automatically adjusts the measured conductivity values to display as specific conductance. This provides standardized repeatably comparable measurements. When the probe is turned on, the LCD screen displays both conductivity and temperature. A short wait of 20 seconds per degree Celsius of temperature change is required for the measurements to stabilize at each desired depth, before recording the three measurements.
A PRESSURE-METER TEST is an In-Situ Stress Controlled Loading Test Performed on the wall of a borehole using cylindrical probe which can expand radially.
From the test readings a Stress-Strain can be obtained which yields:
Injecting cementitious material into a soil mass tends to reduce permeability, cause swelling and may increase strength.
Grouting is a technique whereby a slow flowing water/sand/cement mix is injected under pressure. Grouting is a good option if the foundation of an existing building requires improvement, sine it is possible to inject the grout from the side or at an inclined angle.
The fundamental concept of soil nailing consists of reinforcing the ground by passive inclusions, closely spaced, to create in-situ a coherent gravity structure and thereby to increase the overall shear strength of the in-situ soil and restrain its displacements.
In soil nailing, similarly to ground anchors, the load transfer mechanism and the ultimate pull-out resistance of the nails depends primarily upon soil type and strength characteristics, installation technique, drilling method size and shape of the drilled hole, as well as grouting method and pressure used.
- Stabilization of railroad and highway cut slopes
- Excavation retaining structures in urban areas for high rise building and underground facilities
- Tunnel poratals in steep and unstable stratified slopes
PILE DYNAMICS & INTEGRITY
PILE DRIVING ANALYZER
The High Strain Dynamic Testing is widely used in the lieu of the conventional static load. Additional parameters on pile driving performance and stresses on pile (both compression and tension) are measured by means of sensor attached on the pile during driving.
Automatically plotted summary of data are viewed from the screen during testing.
Quick and cost efficient test for measuring bearing capacity, skin resistant and check hammer performance.
PILE INTEGRITY TESTER
The low straining test can quickly evaluate the shaft integrity using P.I.T. collector attached to a sensitive accelerometer superimposed on top of the pile.
Low strain compressive impact waves are then generated by tapping the pile top with hammer.
When the downward travelling compression wave encounters a change in cross section or quality of concrete, it generates an upward travelling tension wave which is observed at the pile top.
Geotechnics Philippines, Inc.
Address: 119 Sauyo Road, 119 Don Julio Gregorio, Novaliches, Quezon City, 1103 Metro Manila, Philippines
Phone: (632) 930-6555 | (632) 935-3730 | (632) 938-2124
Fax: (632) 456-1140
E-mail: email@example.com | gpicustomerservice | firstname.lastname@example.org
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