Prior to any drilling works:
Assisted and facilitated by licenced LCDW, team shall ensure nearby utility, underground services, tunnel and other sensitive structures and objects are clearly identified and demarcated on site. Prepare, submit and keep records of the approved NCD/NCE record properly. Check the validity of the documents prior to actual daily works and operation.
Lifting permits and certificates for all related lifting gear/equipment/lorry cranes to be checked and ensure at sound and safe conditions, if any mobilization or shifting of rig is required prior to daily drilling works.
Person in charge (PIC)/Senior Instrumentation Engineer (SIE) shall check and issue permit to work (PTW) forms daily and extend a copy on site.
Daily safety tool box meeting and regular briefing of works shall be conducted to boost safety awareness and promote safe practices.
Supervisors/Foremen to lead workers for trial-trenching and hand-augering with due-diligence and care. Trial trench shall be in minimum size of one metre square in planed area and will be hand-dug up to at least 1.5 metre in depth, further augering is recommended to extend another 1.5 m to confirm non-existence of obstacles, utility and services.
Special application and submissions shall be made for works falling into Railway Protection Zone (RPZ), machinery shall be low-headroom type and with PE Assignee standing supervising the operation.
At least one full-time technician (supervisory role) to be deployed for every two drilling rigs operations to ensure all drilling works being accurately and safely conducted and recorded. The drilling operator shall have previous experience in similar works subject to the acceptance of the Engineer. Regular trainings to be conducted (at least once per year) for the entire drilling team.
Rigger signal man, lifting supervisor, traffic controllers and other supporting team shall be deployed in accordance with work requirements to ensure site safety.
During the drilling operations:
Drilling operations shall be only conducted by trained personnel, and under supervisions of instrumentation supervisors and engineers
The drilling mud / slurry water will be either:
maintenance of drilling rig and equipment, timely repair for any ad-hoc issues to mitigate safety risks and improve productivity.
Steel casing should be lowered in the top/soft soil layer to prevent soil collapse during installation of bore hole instruments.
Safety equipment and tools such as Fire Extinguisher, First-aid box etc. shall be kept with drilling rig at all times and properly maintained regularly.
Soundproof mat shall be applied next to the rotary parts of the rig while drilling operations in the public or in close proximity to buildings or whenever necessary.
Depending on locations and distances, additional noise barrier (mobile type) shall be applied if necessary, to further mitigate noise issues to the residence and public.
Proper barricade and signboards with good visibility to be deployed and displayed around drilling operation at all times.
After the drilling/installation:
Proper house-keeping and cleaning. Reinstate the ground and surroundings to client and stakeholders' satisfactory.
Carry out de-mobilization lifting works safely according to standard lifting procedures.
Proper instrumentation labelling, protection and signboards including contact information.
