Workshop #1

Title: INOVATION and TECHNICAL CHALLENGES In SUPPORT SYSTEMS FOR DEEP EXCAVATIONS 

Presenters:

Dr. Shahab Yasrebi, Emeritus Prof., Tarbiat Modares University and President of Geomaple Co. (Canada)

Dr. Ebrahim Asghari, Associate Prof., University of Tabriz and Rhavar Co.

Dr. Sina Majidian, Assistant Prof., University of Science and Technology of Mazandaran

Session I: Ordinary and New Methods of Excavation, S. Yasrebi

-Design Methodology

-Ordinary Excavation Support Systems (Excavation with stable slope, Retaining wall, Steel truss)

-New Methods of Excavation Support Systems (Soil Nailing, Soil Anchorage, Soldier Pile, Pile, Diaphragm Wall, Sheet  Pile)

-Site Investigation

-Design Methods

-Design of Soil Nail Walls

-Design of Anchor Wall and Soldier Beam Wall

-Design of Sheet Pile Wall

Session II: Geotechnical Studies in Deep excavations, E. Asghari

- Site Geology

- Geology hazards (Fault zones, Problematic soils (man made soils), Underground spaces, Qanat channels)

- Geotechnical Investigation (Investigation plan, Borehole drilling or test pit excavation, In-situ tests, Lab. tests, Geophysical explorations)

-Determination of geotechnical parameters of soils for design

-Groundwater challenges for excavation stability

Session III: Numerical Modeling, S. Majidian

-Introduction

-Present station of numerical simulation in design of excavations

-Comparison between Numerical simulation and other methods

-Constitutive soil models

-Case studies

Session IV: QC and Monitoring, S. Yasrebi

- Goal of  QC and Monitoring

- Necessity of  QC and Monitoring

- Quality Control

- Instrument and monitoring

- Relationship between monitoring and design

• Conclusion and recommendation

Workshop #2

Title: Evaluation of Liquefaction Potential of Silty Sands of Hormozgan Coastlines Deposits: CPTu Data versus Dynamic Lab Tests

Presenters:
1. Kazem Fakharian, PhD, Amirkabir University of Technology
2. Hamed Vaezian, MSc, Pars GeoEnviro Inc.
3. Taghi Bahrsmi, BSc, Pars GeoEnviro Inc.

Session A. Liquefaction Potential Analysis Methods: 1:30 hrs
1. History and Definitions
2. Theories of Liquefaction
3. Effect of Fines Content
4. Cyclic Softening
5. Liquefaction Analysis Methods:
5.1. Element testing: Triaxial, Simple Shear
5.2. SPT Methods
5.3. CPT based Methods
6. Questions/Answers/Discussion

Session B. Liquefaction Potential of Hormozgan Coastlines: 1:30 hrs
1. Geology, Seismicity and Sedimentation Fabric
2. Recent Developments in Jask-Makran: Case Studies of Geotechnical
Investigations
3. Soil Stratification: CPTu versus BH Results
4. CPTu Liquefaction Analysis
5. Cyclic Triaxial and Simple Shear Test Results
6. Remediation Methods
7. Questions/Answers/Discussion