Prepared By:
Aya Edaly
Bara’a Salhab
Saja Janem
Huda Qaddara

Supervisor:
Dr. Isam Jaradaneh

Site Investigation 




1




Definition of Site Investigation


Proposed Residential Rafedia Building


Proposed Toqan Building


Recommendations and Conclusions 


Stages of Site Investigation 


Purpose of Site Investigation






































Definition
Site Investigation is the exploration or discovery of the ground conditions to enable engineers to make informed design decisions.  
 







4


Purpose


Determine the suitability of the site for the proposed project. 


Determine an adequate and economic foundation design.


Determine the difficulties which may arise during the construction process and period.


Determine the occurrence of all changes in subsoil conditions.
















Stages of Site Investigation 

Desk Study (Preliminary Work).
Site Reconnaissance(walk-over the site).
Detailed Site Exploration.
Planning.
Sampling. 
Testing. 
Result.
Report.





Residential Rafedia Building


Proposed Residential Rafedia Building

This proposed building located opposite to Al-Motamayzon Supermarket at Rafedia Main Street.
The site has a plan area of about 1550m2 and the proposed building will consist of 9 stories, each story will have a  plan area equal 900 m2. 


Boreholes Log 



Typical Geological Section



Laboratory Tests Carried Out
 Classification tests:
Natural Moisture Contents.
Atterberg Limits(Liquid and Plastic).
 
 





Laboratory Tests Carried Out
 Strength Tests: 
Direct Shear Test





Laboratory Tests Carried Out
2. Unconfined Compression Test





Recommendations and Results
Sallow foundation can be constructed on the Marl Soil. The allowable bearing capacity is 170kN/m2.

Care should be taken to overcome expected problems from high water level.

Excavation support system should be designed and installed for the site if the excavation is greater than 4 m.

Retaining walls with adequate drainage system and good backfill materials is recommended. 



13




Toqan  Building 
 





 Proposed Toqan Building
The proposed building is located near An-Najah N. University, Ring Load, Jenaid, Nablus, and Palestine.
The site has a plan area of about 930 m2 and the proposed building will have  a plan area equal 445 m2 for each story. The proposed building will consists of 8 stories


Boreholes Log 





Typical Geological Section




Laboratory Tests Carried Out
Atterberg Limits
Liquid Limit 



Plastic Limit 


 







Laboratory Tests Carried Out
2. Direct Shear Test 





Recommendations and Results
The ability of the construction is recommended to be not more than 250 KN/m2 on the depth 1.0m assuming  that the shallow foundation will be on the poplar layer after compaction the level of the foundation.
It is recommended to use the soils result from the excavation from the surface layer in the backfilling works.
Care should be taken, and save the building from water effects and ponding of water in the foundation places.



Conclusions and Recommendations of the project

site investigation is very important before constructing any structure to determine the geotechnical properties.
Site investigation techniques should be done according to standards and international codes.
The techniques of site investigation should be reliable and developed.
It is recommended to use as possible and available field tests.



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