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NIK ZAFRI BIN ABDUL MAJID,
CONSULTANT/TRAINER
Email: nikzafri@yahoo.com, nikzafri@gmail.com
https://nikzafri.wixsite.com/nikzafri

Kelantanese, Alumni of Sultan Ismail College Kelantan (SICA), IT Competency Cert, Certified Written English Professional US. Has participated in many seminars/conferences (local/ international) in the capacity of trainer/lecturer and participant.

Affiliations :- Network Member of Gerson Lehrman Group, Institute of Quality Malaysia, Auditor ISO 9000 IRCAUK, Auditor OHSMS (SIRIM and STS) /EMS ISO 14000 and Construction Quality Assessment System CONQUAS, CIDB (Now BCA) Singapore),

* Possesses almost 30 years of experience/hands-on in the multi-modern management & technical disciplines (systems & methodologies) such as Knowledge Management (Hi-Impact Management/ICT Solutions), Quality (TQM/ISO), Safety Health Environment, Civil & Building (Construction), Manufacturing, Motivation & Team Building, HR, Marketing/Branding, Business Process Reengineering, Economy/Stock Market, Contracts/Project Management, Finance & Banking, etc. He was employed to international bluechips involving in national/international megaprojects such as Balfour Beatty Construction/Knight Piesold & Partners UK, MMI Insurance Group Australia, Hazama Corporation (Hazamagumi) Japan (with Mitsubishi Corporation, JA Jones US, MMCE and Ho-Hup) and Sunway Construction Berhad (The Sunway Group of Companies). Among major projects undertaken : Pergau Hydro Electric Project, KLCC Petronas Twin Towers, LRT Tunnelling, KLIA, Petronas Refineries Melaka, Putrajaya Government Complex, Sistem Lingkaran Lebuhraya Kajang (SILK), Mex Highway, KLIA1, KLIA2 etc. Once serviced SMPD Management Consultants as Associate Consultant cum Lecturer for Diploma in Management, Institute of Supervisory Management UK/SMPD JV. Currently – Associate/Visiting Consultants/Facilitators, Advisors for leading consulting firms (local and international) including project management. To name a few – Noma SWO Consult, Amiosh Resources, Timur West Consultant Sdn. Bhd., TIJ Consultants Group (Malaysia and Singapore) and many others.

* Ex-Resident Weekly Columnist of Utusan Malaysia (1995-1998) and have produced more than 100 articles related to ISO-9000– Management System and Documentation Models, TQM Strategic Management, Occupational Safety and Health (now OHSAS 18000) and Environmental Management Systems ISO 14000. His write-ups/experience has assisted many students/researchers alike in module developments based on competency or academics and completion of many theses. Once commended by the then Chief Secretary to the Government of Malaysia for his diligence in promoting and training the civil services (government sector) based on “Total Quality Management and Quality Management System ISO-9000 in Malaysian Civil Service – Paradigm Shift Scalar for Assessment System”

Among Nik Zafri’s clients : Adabi Consumer Industries Sdn. Bhd, (MRP II, Accounts/Credit Control) The HQ of Royal Customs and Excise Malaysia (ISO 9000), Veterinary Services Dept. Negeri Sembilan (ISO 9000), The Institution of Engineers Malaysia (Aspects of Project Management – KLCC construction), Corporate HQ of RHB (Peter Drucker's MBO/KRA), NEC Semiconductor - Klang Selangor (Productivity Management), Prime Minister’s Department Malaysia (ISO 9000), State Secretarial Office Negeri Sembilan (ISO 9000), Hidrological Department KL (ISO 9000), Asahi Kluang Johor(System Audit, Management/Supervisory Development), Tunku Mahmood (2) Primary School Kluang Johor (ISO 9000), Consortium PANZANA (HSSE 3rd Party Audit), Lecturer for Information Technology Training Centre (ITTC) – Authorised Training Center (ATC) – University of Technology Malaysia (UTM) Kluang Branch Johor, Kluang General Hospital Johor (Management/Supervision Development, Office Technology/Administration, ISO 9000 & Construction Management), Kahang Timur Secondary School Johor (ISO 9000), Sultan Abdul Jalil Secondary School Kluang Johor (Islamic Motivation and Team Building), Guocera Tiles Industries Kluang Johor (EMS ISO 14000), MNE Construction (M) Sdn. Bhd. Kota Tinggi Johor (ISO 9000 – Construction), UITM Shah Alam Selangor (Knowledge Management/Knowledge Based Economy /TQM), Telesystem Electronics/Digico Cable(ODM/OEM for Astro – ISO 9000), Sungai Long Industries Sdn. Bhd. (Bina Puri Group) - ISO 9000 Construction), Secura Security Printing Sdn. Bhd,(ISO 9000 – Security Printing) ROTOL AMS Bumi Sdn. Bhd & ROTOL Architectural Services Sdn. Bhd. (ROTOL Group) – ISO 9000 –Architecture, Bond M & E (KL) Sdn. Bhd. (ISO 9000 – Construction/M & E), Skyline Telco (M) Sdn. Bhd. (Knowledge Management),Technochase Sdn. Bhd JB (ISO 9000 – Construction), Institut Kefahaman Islam Malaysia (IKIM – ISO 9000 & Internal Audit Refresher), Shinryo/Steamline Consortium (Petronas/OGP Power Co-Generation Plant Melaka – Construction Management and Safety, Health, Environment), Hospital Universiti Kebangsaan Malaysia (Negotiation Skills), Association for Retired Intelligence Operatives of Malaysia (Cyber Security – Arpa/NSFUsenet, Cobit, Till, ISO/IEC ISMS 27000 for Law/Enforcement/Military), T.Yamaichi Corp. (M) Sdn. Bhd. (EMS ISO 14000) LSB Manufacturing Solutions Sdn. Bhd., (Lean Scoreboard (including a full development of System-Software-Application - MSC Malaysia & Six Sigma) PJZ Marine Services Sdn. Bhd., (Safety Management Systems and Internal Audit based on International Marine Organization Standards) UNITAR/UNTEC (Degree in Accountacy – Career Path/Roadmap) Cobrain Holdings Sdn. Bhd.(Managing Construction Safety & Health), Speaker for International Finance & Management Strategy (Closed Conference), Pembinaan Jaya Zira Sdn. Bhd. (ISO 9001:2008-Internal Audit for Construction Industry & Overview of version 2015), Straits Consulting Engineers Sdn. Bhd. (Full Integrated Management System – ISO 9000, OHSAS 18000 (ISO 45000) and EMS ISO 14000 for Civil/Structural/Geotechnical Consulting), Malaysia Management & Science University (MSU – (Managing Business in an Organization), Innoseven Sdn. Bhd. (KVMRT Line 1 MSPR8 – Awareness and Internal Audit (Construction), ISO 9001:2008 and 2015 overview for the Construction Industry), Kemakmuran Sdn. Bhd. (KVMRT Line 1 - Signages/Wayfinding - Project Quality Plan and Construction Method Statement ), Lembaga Tabung Haji - Flood ERP, WNA Consultants - DID/JPS -Flood Risk Assessment and Management Plan - Prelim, Conceptual Design, Interim and Final Report etc., Tunnel Fire Safety - Fire Risk Assessment Report - Design Fire Scenario), Safety, Health and Environmental Management Plans leading construction/property companies/corporations in Malaysia, Timur West Consultant : Business Methodology and System, Information Security Management Systems (ISMS) ISO/IEC 27001:2013 for Majlis Bandaraya Petaling Jaya ISMS/Audit/Risk/ITP Technical Team, MPDT Capital Berhad - ISO 9001: 2015 - Consultancy, Construction, Project Rehabilitation, Desalination (first one in Malaysia to receive certification on trades such as Reverse Osmosis Seawater Desalination and Project Recovery/Rehabilitation)

* Has appeared for 10 consecutive series in “Good Morning Malaysia RTM TV1’ Corporate Talk Segment discussing on ISO 9000/14000 in various industries. For ICT, his inputs garnered from his expertise have successfully led to development of work-process e-enabling systems in the environments of intranet, portal and interactive web design especially for the construction and manufacturing. Some of the end products have won various competitions of innovativeness, quality, continual-improvements and construction industry award at national level. He has also in advisory capacity – involved in development and moderation of websites, portals and e-profiles for mainly corporate and private sectors, public figures etc. He is also one of the recipients for MOSTE Innovation for RFID use in Electronic Toll Collection in Malaysia.

Note :


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ON THE"LABEL" SECTION BELOW (RIGHT SIDE COLUMN), YOU CAN CLICK ON ANY TAG - TO READ ALL ARTICLES ACCORDING TO ITS CATEGORY (E.G. LABEL : CONSTRUCTION) OR GO TO THE VERY END OF THIS BLOG AND CLICK "Older Posts"


 

Showing posts with label SOIL. Show all posts
Showing posts with label SOIL. Show all posts

Tuesday, September 10, 2024

ELMINA RIDGE LANDSLIDE

https://www.linkedin.com/feed/update/urn:li:activity:7239271557565427712/

Quote : 

SHAH ALAM: Two Bangladeshi construction workers died after being buried in a landslide in an incident at a concrete drain construction site in Elmina Ridge, Section U15 here today.

In the incident at about 10 am, the victims were working on the construction of a 0.3 m deep drain in the housing area.

Upon inspection, firemen found that the victims were buried by earth and concrete of the U box culvert while they were doing drainage construction work.

Meanwhile, Shah Alam district police chief ACP Mohd Iqbal Ibrahim said his investigation found that at the time of the incident, there were three workers who were installing concrete drains at the location involved.

He said the ground at the side of the drain suddenly collapsed causing the concrete wall of the drain to break and fall on one of the workers and the other was buried by the falling earth.

Photo Source : Bernama

MY PERSONAL OPINION

Let's first look into the typical construction methodology (excerpt from a method statement)


TYPICAL RISK, DANGERS AND HAZARDS DURING U-BOX CULVER INSTALLATION

1) Trench Collapse

The sides of the trench may collapse, especially if the soil is unstable or the trench is deep.

1.1  Preventive Measures

Use trench shoring, trench boxes, or sloping to prevent collapse. Workers should avoid working in trenches without proper protective systems.

2) Heavy Equipment Hazards

Risks associated with the operation of heavy machinery like cranes, excavators, and trucks. These include crushing, falling objects, and equipment malfunction.

Note : Please be aware that limited working space between heavy equipment, such as a crane, and the excavation area can impact the soil load and potentially lead to a collapse.

2.1 Preventive Measures

Ensure proper training and certification of operators, maintain equipment, and establish clear communication and signaling protocols.

Ensure the placement of heavy equipment such as cranes are placed at the appropriate position during excavation. The working space between the crane and the excavation area must be adequate.

3) Falls

Workers can fall into the trench or off equipment.

3.1 Preventive Measures

Install guardrails, barriers, or fencing around open trenches, and ensure workers use harnesses or fall protection gear when necessary.

4) Water Accumulation

Water can accumulate in the trench, leading to slippery conditions or creating a drowning hazard.

4.1 Preventive Measures

Ensure proper drainage and dewatering systems are in place before excavation begins.

5) Exposure to Hazardous Materials

Workers may be exposed to hazardous materials such as contaminated soil or underground utilities.

5.1 Preventive Measures

Conduct a site survey for potential hazards and use appropriate personal protective equipment (PPE).

6) Utility Interference

Risk of damaging underground utilities (like gas, water, or electrical lines) during excavation.

6.2 Preventive Measures

Conduct a utility survey and mark utility locations before excavation. Follow local regulations for safe digging.

INCLEMENT WEATHER

During the rainy season, the ground becomes saturated with water, which can reduce soil stability. This makes the soil more prone to collapsing, especially if the trench walls are not properly supported or shored. Saturated soil can be heavier and less cohesive, increasing the risk of a trench collapse, which poses a safety hazard and can delay the installation process.

Water Accumulation in Trenches

Rainwater can accumulate in the open trenches, creating additional challenges for the installation of the culvert. Waterlogged trenches may require dewatering before installation can proceed, which can add time, effort, and cost to the project.

Difficulties in Compaction and Backfilling

Proper compaction of the backfill material is essential for ensuring the structural stability and longevity of the culvert. However, wet conditions make it difficult to achieve the required compaction levels. Wet or muddy soil may not compact well, potentially leading to settlement issues in the future.

Logistical Challenges

Heavy rain can disrupt transportation of materials and equipment, affect worker safety, and make the construction site more challenging to navigate.

Damage to Installed Structures

Rain can cause erosion around the newly installed culvert if drainage and runoff are not adequately managed, potentially undermining the structure before it is fully set.

DO IT DURING DRY SEASON

Benefits

Reduced Water Interference During the dry season, there is minimal or no water flow in the drainage channel, making it easier to excavate, place, and align the culvert without the risk of flooding or waterlogging.

Improved Safety

Lower water levels reduce the risk of trench collapse and other water-related hazards, such as slippery conditions or equipment getting stuck in mud.

Better Soil Conditions

Dry soil is generally more stable, making excavation and backfilling easier and more effective. It also reduces the risk of soil erosion or settling, which could compromise the culvert's installation.

Efficient Construction

Work can proceed faster in dry conditions since there are fewer weather-related delays, allowing for a more efficient and timely installation.


Typical Safety Slope for Trench Walls

To prevent trench collapse, especially in deeper trenches or in unstable soil conditions, the trench walls should be sloped or benched according to safety standards. The appropriate angle of the slope depends on soil type:

Stable soil

A slope of 1:1 (45 degrees) is typically used.

Less stable soil: A slope of 1.5:1 or even 2:1 (about 33 to 27 degrees) may be necessary.