GEOTECHNICAL

ENGINEERING

ECG 503

LECTURE NOTE 01

INTRODUCTION

CODE : ECG503

SEMESTER : 06

CREDIT HOURS : 3.0

PRE-REQUISITE : ECG 413, ECG 423,

ECG 433

CONT. HRS/WK. : Lecture :

3.0 hours/week

GEOTECHNICAL ENGINEERING

INTRODUCTION

SYNOPSIS

• This course deals with the principles of geotechnical analysis and design approach related to the two dimensional flow in soil, retaining structures, ground improvement and slope risk assessment analysis for civil engineering purposes.

INTRODUCTION

COURSE OUTCOMES

At the end of this course, the students should be able:

a. Understand and analyse seepage theory in 2-D flowproblems associated with the construction of dam.

b. Conduct slope risk assessment analysis, slopeprotection and rehabilitation works.

c. Analysis and design retaining structures, reinforced earth structures and cofferdams.

d. Understand the various methods of ground improvement techniques under different soil conditions.

INTRODUCTION

TOPICS TO BE COVERED

1.Two Dimensional Flows in Soils

2.Slope Risk Engineering

3.Analysis and Design of Retaining

Structure

4.Ground Improvement Techniques

INTRODUCTION

Two Dimensional Flows in Soils

Seepage and 2-D flow in isotropic and

homogeneous soil

Flow through layered soil and isotropic soil

2-D flow analysis using Finite Difference Method

Instability due to seepage and piping

Problem and analysis of flow and hydraulic

pressure on dam structures

Design of filter system for control seepage

INTRODUCTION

Slope Risk Engineering

Natural slope and made engineered soil

slope assessment

Slope protections and improvements

Slope Rehabilitation Works include

forensic works, rehabilitation

techniques eg. soil nailing, grouting,

engineered slope stability structures

INTRODUCTION

Analysis and Design of Retaining

Structure

Type of retaining structure

Sheet pile wall – cantilever and anchored

sheet pile

Analysis by free-earth support method

Braced excavation – determination of force in

struts

Reinforces earth structures, analysis and

design

Cofferdam design and analysis

INTRODUCTION

Ground Improvement Techniques

Objective and principles of ground improvements

Types of ground improvement with respect to

cohesionless and cohesive soil

Physical and chemical methods and objective;

stone column, grouting and vibrocompaction

Mechanical methods and objective; dynamic

compaction, vibrofloatation and vibrocompaction

Hydraulic methods and objective of vertical drain

and preloading

INTRODUCTION

Lectures

Tutorials

Teaching Methodology

INTRODUCTION

Assessment

Method of Assessment Marks (%)

COURSEWORK 40

Assignments 1, 2 & 3 (min. 2 nos.) 10

Tests 1, 2 & 3 (min. 2 nos.) 30

FINAL EXAMS (comprehensive) 60

TOTAL 100

RECOMMENDED TEXT

Budhu M. (2007), Soil Mechanic

and Foundation, John Wiley &

Sons

SOME IMPORTANT

PERSON IN SOIL

MECHANIC

K. TERZAGHI

• Father in Soil Mechanic

• Effective Stress Law

• Consolidation Theory

C.A. COLOUMB

• Added cohesion to the friction concept

• Passive and active earth pressures

W.J.M. RANKINE

• Lateral Earth Pressure

• Civil Engineer and Educator

CASAGRANDE

HIGHLAND TOWER

(11 December 1993)

KG. RAJA, CAMERON HIGHLAND

(7 December 1994)

KM39, KL – KARAK HIGHWAY

(30 June 1995)

GUA TEMPURUNG,

LEBUH RAYA UTARA SELATAN

(6 January 1996)

POS DIPANG, KAMPAR

(29 August 1996)

KM49 JALAN TAPAH –

CAMERON HIGHLAND

(9 October 1996)

JALAN TUN SARDON, BALIK PULAU

(16 November 1998)

BUKIT ANTARABANGSA,

ULU KELANG (15 May 1999)

KM 18 JALAN SUNGAI TUA,

HULU YAM

LANDSLIDE TRAGEDY AT

SIMUNJAN, SARAWAK

(28 January 2002)

LANDSLIDE TRAGEDY AT

TAMAN HILLVIEW

(20 November 2002)

KM52, TAPAH-CAMERON

HIGHLAND (24 February 2004)

RUNTUHAN DI JALAN RANAU,

TAMPARULI

(26 June 2004)

TAMAN HARMONIS, GOMBAK

(6 November 2004)

TAMAN BERCHAM UTAMA

(2 December 2004)

LANDSLIDE AT KAMPUNG LEMBAH, PUCHONG

(14 April 2005)

LANDSLIDE AT PRECINT 9,

PUTRAJAYA 22 MARCH, 2007