Downloadable Documents:-
001. [Hong Kong BD] Code of Practice for Foundation
2017
002. [Hong Kong
CEDD] Geoguide 1: Guide to Retaining Wall Design (2020 version)
003. [Hong Kong CEDD] Geoguide 2: Guide to Site
Investigation (2017 version)
004. [Hong Kong
CEDD] Geoguide 3: Guide to Rock and Soil Description (2017 version)
005. [Hong Kong
CEDD] Geoguide 4: Guide to Cavern Engineering (2018 version)
006. [Hong Kong
CEDD] Geoguide 5: Guide to Slope Maintenance (2021 version)
007. [Hong Kong CEDD] Geoguide 6: Guide to
Reinforced Fill Structure and Slope Design (2017 version)
008. [Hong Kong CEDD] Geoguide 7: Guide to Soil Nail
Design and Construction (2017 version)
010. [Hong Kong CEDD] Geospec 3: Model Specification
for Soil Testing (2017 version)
012. [Hong Kong CEDD] Geotechnical Manual for Slopes
013. [Hong Kong
CEDD] Highway Slope Manual
014. [Hong Kong
CEDD] Foundation Design and Construction
015. [Hong Kong
CEDD] Engineeing Geological Practice in Hong Kong
021. Common
Universal Bearing Pile Properties
022. The Technical and
Contractual Matters of Bored Piling Works
024. Method
Statement – Bored Piling
026. BS EN 14490: Soil Nailing
027. Soil Nailing for Slope
Strengthening
028. Hong Kong
Geology Guide Book
029. Piled
Foundation Design and Construction
031. Method
Statement of Bored Piles
033. Geotechnical Design –
Worked Examples
036. text – Pile Design and
Construction Practice - Tomlinson
038. text –
Foundation Design and Construction - Tomilinson
039. text – Basics of
Foundation Design
040. text – Foundation
Analysis and Design – Bowles
041. text –
Principles and Practices of Soil Mechanics and Foundation Engineering
042. text – Foundation
Engineering Handbook
045. Structural
Foundation Designer’s Manual
Reference Documents:
001. Calculation of Active Force on Retaining Wall with
Coulomb's Formula
002. Retaining Wall - Factor of Safety Checks, and 4
Modes of Failures
005. Soil Permeability, and Typical Values of
Hydraulic Conductivity of Saturated Soils
006. Foundation Stress Spread with Depth (The 2:1
Method)
009. Symbols using Greek Alphabet
010. Graph of Bearing Capacity Factors
011. Typical Soil Unit Weights
012. Simplified Method for Estimating Ground
Settlement
013. Elastic Moduli of Clay and Granular Soils
015. Estimation of Soil Nail Tension Capacity from
Value of Standard Penetration Test
016. Typical Required Borehole Depths
017. Rectangular Footing: Contact Pressure with Soil
and Pressure Diagram
018. Additional Soil Stresses due to a Vertical Line
Load
019. Additional Soil Stresses due to an Infinite
Strip of Uniform Vertical Loading
020. Additional Soil Stresses due to a Vertical Load
(in Cylindrical Coordinate System)
021. Vertical Stress Below a Rectangular Loaded Area
022. Newmark's Chart (It's a tool for estimation of a soil point stress under a building. See text of G.E. Barnes)
023. Blank Log Paper (for plotting geotechnical
graphs)
024. Calculation of Lateral Earth Pressure on a
Retaining Wall due to a Line Load
025. Calculation of Lateral Earth Pressure on a
Retaining Wall due to a Uniform Area Load
026. Plate Load Test (ASTM D1194) for reference. HK
has her own standard tests.
028. Capacity of Strip Footings
029. Rankine
Theory of Active and Passive Soil Pressure
030. Coulomb Theory of Active and Passive Forces
Youtube Videos:
001. What is Geotechnical Engineering ..
003. Basic Introduction to Soil Strength
(compared with steel, concrete, and water)
004. Drained and Undrained Soil Shear
Strength
005. Simple Frictional Model of Soil
Strength
006. Soil Density and Proctor Test
007. The Effect of Water on Soil Strength (video linked to this site on 14 Aug 2018)
008. The Effect of Particle Size and Shape
on Soil Strength (video linked to this site on 14 Aug 2018)
009. Atterberg Limit Tests (LL: Liquid
Limit, and PL: Plastic Limit) ASTM (video linked to
this site on 15 Aug 2018)
010. Triaxial Shear Test
(video linked to this site on 15 Aug 2018)
011. Direct Shear Test (video
linked to this site on 22 Aug 2018)
012. Lecture on Classification of Soil in
the Field (video linked to this site on
20 Aug 2018)
013. Understand Soil Types and Soil Texture (video
linked to this site on 22 Aug 2018)
015. Advice for New Geotechnical Engineers
(video. 23 May 2019)
016.
Introduction to Geotechnical Engineering (video. 23 May
2019)
017. How
Quicksand Causes Dam Failures (video. 23 May
2019)
018. The Importance of Geotechnical
Engineering (video. 23 May 2019)
019. What is a
Deep Foundation (video. 23 May 2019)
021. Failure of a Braced Retaining Wall in
Istanbul (video, 30 May 2019)
022. Dr. Amy
Cerato - A Geotechnical Engineer (video, 30 May
2019)
023.
"Drilling Operations for Retrieval of Natural Gas" High-resolution
Animation (video, 30 May 2019)
024. Braced Excavation
(video, 21 Oct 2022)
Web links:
001. Rock Types with
Wikipedia
002. HK DevB List of Approved Piling
Contractors - status as of Feb. 19, 2018
003. HK BD search for
registered special contractors: SC(F), SC(SF), SC(GIFW)
005. GE05 - geotechnical engineering
software
Topics about Slope Designs, Stability, Stabilisation after Failures /
before Potential Failures Geotechnical Investigation, Slope Safety & etc :-
(Disclaimer:
Information provided in this section are meant to be as accurate as possible;
however, I am not responsible for errors.)
(Information are
added sequentially as time goes by; thus, some documents may not be absolutely
up-to-date, e.g. the CEDD standard drawings)
0001 
Generally speaking, slope failures and landslides are mainly caused by heavy rainfall, water/sewer pipe leakage. Water saturation and high pore water pressure weaken the
bonds within the rock & soil masses of the slopes (cut slopes, fill slopes,
slopes behind all kinds of retaining walls), causing failures. (March 5, 2016)
0002
High-intensity rainfall of short duration is a major
triggering factor for landslides (March 5, 2016).
0003
Definition of Landslide: The movement of a mass of
rock, debris, or earth down a slope (March 5, 2016).
0004 In Hong Kong, the wet season (and co-incidentally the
most frequent typhoon period) includes second
half of May, June, July, August, and September. According to the reports made by
the Water Supplies Department, the amount of rainfall during these
4+ months is almost 10 times the total amount of the remaining year. As
a result, slope failures and landslides are more likely to occur during the wet season. On the other
hand, repair and construction works are best to be done in advance of or after
the wet seasons. (March 5, 2016)
0006 Minerals are fundamental components of rocks. They are
made up natually with inorganic substances, of
specific chemical comprositions, and of orderly repeatative actomic structure.
Fundamental crystal structure. (from ISBN:
978-962-02-0381-7) (March
15, 2016)
0007 Silicate minerals are the most abundant components of
rocks on Earth's surface. Making up over 90% of Earth's crust. The
building blocks are silicon tretroxide, SiO4. . The remaining 10% includes carbonate,
oxides, sulphides, phosphates, and chlorides. A few elements may occur in pure
form, these include gold, silver, copper, bismuth, arsenic, lead, tellurium and
carbon. (from ISBN: 978-962-02-0381-7) (March 15, 2016)
0008 Soil
Slopes Stability Analyses (April 20, 2016)
0009 Rock
Slopes Stability Analyses (April 20, 2016)
0010 Rock
Slope Stablisation Measures Lookup Table (April 20, 2016)
0011 Geotechnical
Engineering Office, standard descriptions and symbols for borelog documentation
(April 22, 2016)
0012 Rocks
and Soils grain size classification (April 30, 2016)
0013 Typical
Void Ratio, Moisture Content, and Dry Unit Weight for Some Common Soils
(April 30, 2016)
0019 Article: EUROCODE 7: A New Way to Verify a Slope’s Stability
(May
12, 2016)
0021 WSD
Rainfall Recording Stations - Location Map and Names (June 1, 2016)
0022 GEO
Regional Variation in Extreme Rainfall Values in Hong Kong (June 1, 2016)
0024 Geotechnical
Parameters for Selected Hong Kong Soils (June 7, 2016)
0025 Scope
of Engineer Inspection for Maintenance (June 12, 2016)
0027 Slope
Maintenance Manual -- Checking items required
(June 18, 2016)
0028 Soil
& Rock Slopes - Typical Preventive Measure - from Geoguide 5
(July 2, 2016)
0029 Frequency
of Maintenance Inspections & Requirement for Undertaking Maintenance Works
(July 8, 2016)
0030 Finer Divisions between Sand, Silt,
and Clay (July 20, 2016)
0031 Thunderstorm
(July 21, 2016)
0032 Plate Structure of the Earth and
Seismically Active Zones (July 21, 2016)
0033 Ten
Tropical Cyclones that Brought the Most Rainfall to Hong Kong (1884-1939,
1947-1999) (July 23, 2016)
0034 Casualties
Caused by Tropical Cyclones in Hong Kong: 1960-1999 (July 23, 2016)
0035 Examine
Landslides (July 25, 2016)
0036 Triggering Events of
Slope Failure (uploaded to this site on 31 July, 2016)
0038 Factors
and Common Misconceptions about Slope Safety (updated to this site on 12 August
2016)
0039 Classifying
Landslides by Areas (uploaded to this site on 21 August 2016)
0040 Landslide Terminology (uploaded to this
site on 21 August 2016)
0041 Hong Kong Rock Grades (uploaded to this site on
21 August 2016)
