08
Nov

HKUST Seminar

Written by Gouw Tjie Liong, Ir., M.Eng, ChFC, PhD. Posted in Geotechnic, News and Opinion

 The Hong Kong University of Science and Technology

Department of Civil and Environmental Engineering

SEMINAR

The Application of Vertical Drain for Soft Ground Improvement – Indonesian Experience

By

 GOUW Tjie-Liong, Ir., M.Eng, ChFC

BINUS University

Certified Senior Geotechnical Consultant

 Abstract

One of the geosynthetic technology that has been widely implemented to overcome the consolidation problem of soft clay in Indonesia is prefabricated vertical drain. Since the mid of 1980s up to the present, to the author knowledge, not less than 100.000.000 linear meters (lm) of prefabricated vertical drain have been installed elsewhere in Indonesia. The currently available types of vertical drains in the market consist of composite geosynthetic material (geotextile filter wrapped around a synthetic core), monolithic geosynthetic material (non-woven geotextile or palstic/poly-olefine) and jute fiber drains. The manufacturer and the supplier, as elsewhere in the world, always claim that their drain is the best one, whereas the others have drawbacks in their resistance against clogging, small discharge capacity, etc. various laboratory test data have been published in lieu with the clogging and discharge capacity drain, is ineffective due to its small discharge capacity at high confining (lateral) pressure and due to the absence of separate filter material. This presentation discusses the above arguments based on a real project application for the construction of two oil tanks at Balikpapan, East Kalimantan, Indonesia..

Date             :      7 December 2012, Friday

Time            :      3:00 pm – 4:00 pm

Venue          :      Room 2612A (Lift 31/32)

                             The Hong Kong University of Science and Technology

                             Clearwater Bay, Kowloon

For enquiries, please contact Ms Rebecca Yau at 2358 7164

 Biography

Mr. Gouw Tjie-Liong is a certified Professional Geotechnical Engineer. He has been working in the field of Geotechnical Engineering since 1984. His expertise covering geotechnical investigation, soil intrumentation, deep foundation and excavation for high rise buildings, pile load testing (Static and PDA), pile integrity testing (PIT), sonic logging test, vibration monitoring, slope stability, ground anchors, pumping test, dewatering, micropiles, tunnelling and ground improvement works, e.g. dynamic compaction, vertical drain, vibro-compaction, geosynthetic and grouting. The jobs cover more than 180 projects in Indonesia, Singapore and Srilanka. He has a great passion in the teaching and disseminating of geotechnical engineering knowledge. He serves as lecturer since late 1984. Currently, he serves as a senior lecturer at Bina Nusantara University, Jakarta, Indonesia. He also conduct regular geotechnical training for engineers.  He chaired the Indonesian Chapter of International Geosynthetics Society since 2006. He has published 61 papers and 22 technical notes. 

* * * ALL ARE WELCOME * * *

08
Nov

HKUST Seminar by Prof. Masyhur Irsyam

Written by Gouw Tjie Liong, Ir., M.Eng, ChFC, PhD. Posted in Geotechnic, News and Opinion

 The Hong Kong University of Science and Technology

Department of Civil and Environmental Engineering

SEMINAR

New Seismic Hazard Maps for Design of Earthquake Resistance Buildings and Infrastructures in Indonesia

 By

Prof Masyhur Irsyam

Institut Teknologi Bandung, Indonesia

Abstract

Revision of current Indonesian Seismic Hazard Map contained in Indonesian Earthquake Resistant Building Code SNI 03-1726-2002 was required to better reflect the potential larger earthquake disasters faced by the nation predictably in the future. Development of new seismic hazard maps for design of earthquake resistance buildings and infrastructures in Indonesia was then conducted by the Team for Revision of Seismic Hazard Maps of Indonesia. The maps ware developed based on the total probability theorem and deterministic approach by using three-dimensional seismic source model and by considering latest geological and seismological data.

Seismic sources were modeled by subduction, fault, and background zones by considering recurrence model that includes truncated exponential model, pure characteristic model, and both models. Several well-known attenuation functions were selected in accordance with the mechanism of seismic source including the Next Generation Attenuation(NGA). Logic tree was applied to account for epistemic uncertainty considering recurrence model, maximum magnitude, and several attenuation functions.

Several hazard levels were analyzed to represent 50, 100, 200, 500, 1000, 2500, 10000 years and deterministic earthquake ground motions at base rock of Indonesia. Peak ground acceleration (PGA) contour maps for those hazard levels and additional maps were produced during this study. These additional maps represent short period (0.2 s) and 1.0 s spectra values for each level. Risk-Adjusted Maximum Considered Earthquake (MCER) and Maximum Considered Earthquake Geometric Mean (MCEG) PGA were also produced for building design.

Date       :     7 December 2012, Friday

Time      :     11:00 am – 12:00 noon

Venue    :     Room 2612A (Lift 31/32)

                     The Hong Kong University of Science and Technology

                     Clearwater Bay, Kowloon

For enquiries, please contact Ms Rebecca Yau at 2358 7164 

Biography

Prof. Masyhur Irsyam is a Professor in the Faculty of Civil and Environmental Engineering, Bandung Intitute of Technology (ITB), Bandung, Indonesia. He graduated from the University of Michigan, USA in 1991.  Prof Irsyam has specialties in the areas of seismic hazard analysis, soil improvement, and foundation engineering. He has been involved as a geotechnical expert in main infrastructure projects in Indonesia and he is currently the chair of the Team for Revision of Sesimic Hazard Maps of Indonesia, the coordinator for Development of Microzonation Maps for Mega Cities in Indonesia, the President of the Indonesian Society for Geotechnical Engineering, the head of Research Center for Disaster Mitigation ITB and member of the Advisory Boards of Building Construction Jakarta. He is also the first author of “Dinamika Tanah dan Fondasi Mesin (Soil Dynamics and Machine Foundations)” (ITB Publication).

* * * ALL ARE WELCOME * * *

22
Jun

Invited Lecture – The Hong Kong University of Science and Technology

Written by Gouw Tjie Liong, Ir., M.Eng, ChFC, PhD. Posted in News and Opinion

SEMINAR

SOIL IMPROVEMENT ON RECLAIMED LANDS THE INDONESIAN EXPERIENCES

By

GOUW Tjie-Liong, Ir., M.Eng, ChFC

BINUS University

Certified Senior Geotechnical Consultant

 

Abstract

Ground improvement technology has played an important role in the development of reclaimed lands and soft soil coastal regions in Indonesia.  This paper elaborates the author past experiences of the ground improvement techniques that has been implemented in various part of Indonesia. Case studies on dynamic compaction, vibro-compaction and pre-loading with vertical drains are presented.

 

Date     :    27 August 2012, Monday

Time    :    10:00 am – 11:15 am

Venue  :    Room 5583 (Lift 27/28)

                 The Hong Kong University of Science and Technology

                 Clearwater Bay, Kowloon

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Geotechnical Course

  • Soil Mechanis
  • Soil Investigation
  • Foundation Engineering
  • PIT, PDA, Sonic Logging
  • Slope Stabilization
  • Geotechnical Instrumentation
  • Deep Excavation
  • Ground Improvement
  • Geotechnical Instrumentation
  • Earthquake
  • Liquefaction Analysis
  • Application of Geotechnical Software
  • Other Geotechnical Course

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Motivational Course

  • Cultivating Engineering Judgment
  • The Problem of Engineer
  • How I Present Myself
  • Light Up
  • Toward Successful Engineering Career
  • Pressure lead to Success
  • The Up and Down of My Life
  • Theory of Emptiness
  • Turning Thought into Reality
  • Young Engineer