8

Part  A  -  Introduction

Further  work  processes  are  documented  in  the  following  reports  and  supporting  documents:
Construction  of  foundation  work  ->  Protocols  and  assessments
Monitoring  of  foundation  work  ->  Report  of  findings  and  assessments
Report  of  findings  and  assessments  ->  Report  of  findings  and  assessments
The  integration  of  appropriate  work  steps  in  ground  investigations  and  assessments  within
the  phases  corresponding  to  the  chronology  of  events  in  accordance  with  the  Standard  Design ­
  are  illustrated  in  Table  2.

Table  2:  Objective  and  type  of  geotechnical  survey  and  investigation.  The  chronology  corresponds ­
  to  the  project  phases  for  implementing  an  offshore  wind  farm  project  in  accordance
with  the  Standard  Design.

Phase

Measure

Purpose  and  objective ­
  of  exploration

Type  of  exploration

Work  steps/supporting ­
  documents

Development ­


Detailed
clarification
for  the  site;
Planning
including
preliminary
design  of  the
structure  of
the  plant

-  Preliminary  investigation ­
  of  the  area;
-  Site  selection  and
preliminary  planning
of  structures;
-  The  preliminary  investigation ­
  aids  decision-making ­
  as  to
whether  the  planned
offshore  structures
can  be  built  with  regard ­
  to  the  ground
conditions,  and  if
necessary  also
which  general  requirements ­
  are  essential ­
  for  the  foundation ­
  concepts,  the
foundation  structure
and  the  construction
process  and  which
measures  are  important ­
  for  site  investigations. ­

-  Fundamentals  for
invitations  to  tender
on  foundation  planning ­
  and  construction ­


-  Review,  assessments ­
  and  evaluations ­
  of  available
supporting  documents; ­

-  Geological  survey  in
the  entire  area  of  the
construction  site;
-  Preliminary  geotechnical ­
  investigations, ­
  i.e.  representative ­
  exploration  by
means  of  direct  and
indirect  exposures
(a  coarse  grid  over
the  construction
site)  and  representative ­
  determination  of
the  essential  parameters ­
  and  characteristics ­
  of  the  ground
conditions.

-  Evaluation  of  available ­
  supporting  documents; ­

-  Geological  survey;
-  Preliminary  geotechnical ­
  investigations ­
  (drilling  and/or
probing,  laboratory
and/or  field  tests);
Supporting  documents ­
  to  be  submitted ­
  with  the  design
basis  and  the  preliminary ­
  design:
-  Geological  report,
-  Preliminary  geotechnical ­
  site  survey
report,
-  Soil  and  foundation
expertise  (Development ­
  phase).
All  documents  audited
by  an  inspector