GEOTECHNICAL AND ENVIRONMENTAL SURVEY

PT NewQuest Geotechnology also provides services for solving the geotechnical or environmental problems. The services provided are:

TOPOGRAPHIC MAPPING

The topographic mapping is done by measuring Longitudes (X), Latitudes (Y), and Elevation (Z) coordinates using Total Station which has millimeters accuracy and then visualized it into topographic map.


CAVITIES INVESTIGATION

The cavities investigation is conducted to locate and approximate the size of cave. This investigation is commonly done before build or reconstruct a building. To locate and know the extension of the cave, a geoelectric method was conducted.

LOCATING UNDERGROUND RIVER

In carst area, the groundwater resource is barely found. But, under the carst layer, the underground river flows. This river can be the water source used to fulfill the need of clean water for the people arround. So, the geoelectrical survey is needed to locate the underground river.

SHEAR WAVE OF SOIL MEASUREMENTS

This method measures Primary Wave Velocity (Vp) and Secondary/ Shear Wave Velocity (Vs) of soil to provide SNI 03-1726-2002 need. The measurement is conducted in each 1 m to get data more accurately.

SUBSURFACE PIPE DELINEATION

Delineate subsurface pipe and other installation before reconstruction using georadar method.

FOUNDATION OF BUILDING INVESTIGATION

To investigate the foundation of the building, the georadar method and well data to map the subsurface model an stratigraphy.

WEAK ZONE / FAULT ZONE MAPPING

This survey is conducted to map the weak zone/fault zone and to know the extension.

GROUNDWATER EXPLORATION

The exploration of groundwater is done to locate the existence and depth of groundwater. The exploration ussually conducted using geoelectric method.

SEA WATER INTRUSION STUDIES

On coastal area, the intrusion of sea water commonly occurrs. This occurrence can affect the groundwater condition. The geoelectrical survey can be conducted to delineate the sea water intrusion area.

DELINEATE CONTAMINED / WASTE DISPOSAL

In the industry area, the environmental problems that commonly occurrs is the contaminated/waste disposal. This problems can cause damage to the environment and the health of people. So, the contaminated/ waste disposal is needed to be delineated using geoelectrical method.