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 De 
sign are illustrated in Table 2. 
Table 2: Objective and type of geotechnical survey and investigation. The chronology corre 
sponds to the project phases for implementing an offshore wind farm project in accordance 
with the Standard Design. 
Phase 
Measure 
Purpose and objec 
tive of exploration 
Type of exploration 
Work steps/support 
ing documents 
Develop 
ment 
Detailed 
clarification 
for the site; 
Planning 
including 
preliminary 
design of the 
structure of 
the plant 
- Preliminary investi 
gation of the area; 
- Site selection and 
preliminary planning 
of structures; 
- The preliminary in 
vestigation aids de 
cision-making as to 
whether the planned 
offshore structures 
can be built with re 
gard to the ground 
conditions, and if 
necessary also 
which general re 
quirements are es 
sential for the foun 
dation concepts, the 
foundation structure 
and the construction 
process and which 
measures are impor 
tant for site investi 
gations. 
- Fundamentals for 
invitations to tender 
on foundation plan 
ning and construc 
tion 
- Review, assess 
ments and evalua 
tions of available 
supporting docu 
ments; 
- Geological survey in 
the entire area of the 
construction site; 
- Preliminary geo 
technical investiga 
tions, i.e. represent 
ative exploration by 
means of direct and 
indirect exposures 
(a coarse grid over 
the construction 
site) and representa 
tive determination of 
the essential param 
eters and character 
istics of the ground 
conditions. 
- Evaluation of availa 
ble supporting doc 
uments; 
- Geological survey; 
- Preliminary geo 
technical investiga 
tions (drilling and/or 
probing, laboratory 
and/or field tests); 
Supporting docu 
ments to be submit 
ted with the design 
basis and the prelim 
inary design: 
- Geological report, 
- Preliminary geo 
technical site survey 
report, 
- Soil and foundation 
expertise (Develop 
ment phase). 
All documents audited 
by an inspector