Appendix D Geotechnical report · MCU18/0013

Project No. 304-2014
November, 2004 Page 2

4.0 GEOTECHNICAL INVESTIGATION

 

4.1 Field Investigation

Subsurface conditions at the site were investigated by drilling and sampling a total of four

(4) boreholes to depths of between 3.3m and 12.0m.

Two (2) boreholes were drilled to depths of 12.0m, where access was permitted for our

Gemco HP7 top drive rotary drilling rig mounted on a 4x4 Mitsubishi Canter truck.

In addition, where vehicle access was not permitted, two (2) boreholes were drilled to
depths of 3.6m (HA3) and 3.3m (HA4) using hand auger equipment. Dynamic cone
penetrometer (DCP) tests were carried out adjacent to the hand auger boreholes to

depths of 5.0 meters.

The classification of soils in the field is subjective, based on the experience and
judgement of the supervising geotechnician and some variations in the soil description,

from the actual material type may occur.

The soil classification descriptions, field and laboratory testing were carried out in general

accordance with the following Australian Standards.

° AS.1726 - 1993 Geotechnical Site Investigations
. AS.1289 Methods of Testing Soils for Engineering Purposes

A description of the investigation method, borehole records and a site plan showing the

location of the boreholes are included in the Appendices.

4.2 Site Description

The site is located at 26 Arakoon Crescent, Sunshine Beach. The site is on the eastern
side of the street. At the time of the investigation, the land was seen to slope down from
the street frontage at an angle of approximately 20 degrees, and became relatively level
at the bottom of the site. The ground surface was partially grassed with medium sized
trees located adjacent to the access track which traversed down across the site from the

street frontage.

 

# SOIL SURVEYS ENGINEERING