GEOGROUP has a wide experience in carrying geotechnical investigations, laboratory testing ,reporting and issuing of complete geotechnical reports for most of the major projects in Egypt. GEOGROUP owns a complete set of equipment to perform both site investigation and laboratory testing.
2.1 Standards for drilling and sampling of test boring
The type of exploration, sampling technique, type and intervals of testing shall be as herein specified
The field work shall be performed in accordance with the following standards. See ASTM D 6151
• ASTM-American society for testing and materials:
• D1452 - soil investigation and sampling by rotary drilling
• D1586- penetration test and split-barrel sampling of soil
• D1587- thin -walled tube sampling of soils
• D5778- Deep, Quasi-static, cone and friction -cone penetration tests of soil or equivalent British standards.
-Egyptian Code for Soil Mechanics, Design and Construction of Foundations (1997).
2.2 Stationing of Boreholes and Test Points
For location of boring and field test points, reference will be made to the drawing provided by the client
(1) Soil boring shall be made with heavy-duty rotary drilling equipment of size and type designed to drill holes of 10 to 15 cm in diameter.
Drilling units shall be equipped with hydraulic feed.
(2) If a temporary casing is used, the size of the casing shall be large enough to accommodate all specified types of sampling equipment and shall be recorded on the boring log as to length and diameter used. Upon completion of each boring, pull casing unless otherwise requests by Client.
(3) All drilling equipment, including the drilling rigs, shall be in good working order at all times throughout the duration of the project. When in the opinion of Client the equipment supplied is inadequate for obtaining the desired information of samples, Geogroup shall replace it immediately with suitable equipment.
(4) Drilling and sampling shall follow the requirements established in the specifications.
(5) Geo group shall record the groundwater level in the boreholes at the start of each working day. Provision to prevent surface water inflow into boreholes shall be made until the end of the ground water observation.
(6) When broken rock or water losses interfere with the drilling operation, the core hole will be cemented and continued after the cement has set enough.
2.4 Standard Penetration Test
The SPT shall be performed according to the ASTM D 1586.in boreholes to determine compactness of cohesion less soil at 1.5-m intervals, as specified, or at strata change.
2.5 Type of Samplers
2.5.1Split-Spoon Samplers: (Standard Penetration Test)
- The purpose of obtaining these samples is to determine the physical properties, stratigraphy and thickens of the various soil strata as they exist in the ground. It is necessary to locate and record the depth at which any change in stratification occurs and to obtain representative samples of the material comprising each stratum as it exists in the ground.
- SPT samples shall also be used for the following laboratory tests, or as specified in the Tender Document:
1-grain size analysis (ASTM D 422 )
2-specific gravity (ASTM D 854 )
- Each sample shall be properly preserved and sealed as soon as it is removed from the ground without loss of water by evaporation, breakage of container, or other disturbances in transit.
- When temporary casing is used, it shall be driven closely following the cutting bit to exclude surrounding soils from the boring. The casing may be omitted only where it can be shown, to the satisfaction of Client that the boring will not entrain soils from an elevation higher than the depth at which the sample is taken.
- Before the start of drilling operation, Geo group shall furnish Client with a complete description of the sampler, giving in side and outside and outside diameters, length of the barrel, and check valves used.
- Special attention shall be considered to ensure that the energy of the falling weight is not reduced by friction between the drive weight and the guides.
2.5.2 Undisturbed Samplers:
1) The purpose of this sampling procedure is to obtain undisturbed samples of character suitable for laboratory tests. Nominal samples 76-mm in diameter, area ratio (10% - 15%) and inside clearance (0.75% -1.50%) shall be taken with either thin-walled tubes (Shelby) or stationary piston sampler.
2) Area Ratio = (Outer Dia. For cutting shoe) 2- (Inner Dia. For cutting shoe) 2/ (Inner Dia. For cutting shoe)
3) Inside Clearance= (Inner Dia. For tube) - (Inner Dia. For cutting shoe) / (Inner Dia. For cutting shoe)
4)The samples shall be used for the following laboratory tests on cohesive (clayey) soils:
a- One dimensional consolidation test (ASTM D 2435/D2435M)
b-un confined compression test (ASTM D 2166 -06 )
c- triaxial compression test (ASTM D 4767 -11)
e-natural moisture content (ASTM 2216 )
f -Other tests, as required.
5) The length of the sample taken in one sampling operation shall 50- 70-cm. A second attempt will be done to obtain the sample before advancing the boring to a deeper depth.
6) Thin-walled tube sampling shall be performed conforming to ASTMD1587
7) If the soils are so hard a thin-walled tube cannot be pushed into the soil, then a Denison or pitcher type sampler shall be used.
8) If very soft soils are encountered and the sample cannot be retained in the thin-walled tube,
then a stationary piston type or Osterberg sampler shall be used.
2.5.3 Core samplers
It will be used in rock formation according to ASTM D 2113 and the samples will be preserved in good condition in labelled boxes Core drilling, will be carefully executed and reported, to produce invaluable subsurface information. Each feature logged will be described in such a way that other persons looking at the core log will recognize what the feature is, the depth at which it occurred in the boring, and its thickness or size. Each lithologic unit in the core will be logged. The classification and description of each unit will be as complete as possible
A simple and widely used measure of the quality of the rock mass is provided by the Rock Quality Designation (RQD), which incorporates only sound, intact pieces 10 cm (4 in.) or longer in determining core recovery. In practice, the RQD is measured for each core run.
2.6- RECORD OF BORING:
GeoGroup shall keep a daily record of drilling operations, two copies of which will behanded over to the engineer 's representative.
The record shall include the following information.The records of boring shall include, but not limited to, the following:
1. Contract ,employer, engineer and contractor's name
2. Supervisor's name.
3. Type of drilling equipment used .
4. Location of the hole and level of ground surface with respect to the provided datum.
5. Hole number.
6. Diameter and depth of all casing .
7. Date and weather conditions .
8. Depth of each stratum change .
9. Thickness of stratum
10. Date of drilling, coordinates, boring no. and elevation of existing ground surface,
11. Diameters of borehole and of linings, if any, and
12. Description of every drilled layers, including:
• Top and bottom elevations of the layer
• Color of soil
• Grain size composition (e.g., boulders, pebbles, gravel, sand, silt, clay, etc. and indicating first the prevailing formation and then others, in order of percentage; for sand and gravel the maximum size of eleme¬nts shall also be mentioned.
• Consistency of the cohesive layers (e.g., very soft, soft, medium, stiff, very stiff, hard)
• Density of granular soils layers (e.g., Loose medium, dense, very dense)
• Occurrence of organic matter(e.g. :peat ,fossils, noduli )
• Shape and nature of gravel and pebbles gradation of cohesion less soils
• Drilling remarks such as: tendency to cave in, full/partia¬l/no fluid return, occurrence of gas, etc.
• Depths of samples
• Depths and results of in situ tests, if any
• Results of (S.P.T., pocket penetrometer and Torvane, etc.)
• Depths to water table
• Measuring depth of casing and bottom of hole.
When rocks of cemented strata are drilled the description shall include remarks on the following:
a) Nature, hardness and color
b) Jointing and joints features
c) Dip of layers, if any
d) Degree of cementation, if any and nature of the cement
e) Degree of weathering and its characteristics
f) Length of the core chunks and R.Q.D.
The cores of the carved materials shall be preserved in special core boxes. The top and bottom elevations or depths of cores shall be reported. Boxes shall be carefully transported to the central laboratory where it shall be kept preserved until the day of testing.The boxes will be kept at disposal of the Employer even upon completion of the boring job.The undisturbed samples will be stored as to guarantee the preservation of the typical characteristics.Project, hole number, elevations of depths between which the sample was taken shall be clearly marked on damp proof labels, applied to the container.The samples, the types of samplers used and the depths or the elevations of sampling shall be reported on the boreholes logs.
2.8 OBSERVASTION WELLS
Open standpipe piezometers will be formed connecting rigid PVC pipes throughout the total length of the hole inner diameter of the pipes will be 50 mm in the filter section , the pipe will be micro fissured . The remainder of the pipe will be solid .The bottom of the pipe will be plugged and the upper end protected by a manhole cover.The section of borehole below the tip of piezometer , if any , will be backfilled with cement / bentonite grout. Clean saturated sand / fine gravel will be poured around the fissured section, if present, the temporary casing will be partially pulled out without rotation to just below the solid section of pipe, The gap between pipe and hole walls above the filter section will be filled with impervious material such as clay or bentonite pellets.We will measure and record every day the water table inside each installed piezometer starting from the installation date fill the end of the site investigation. Measured data will be included in the final report.
2.9- BACKFILLING DRILL HOLES
Each drill hole will be filled with a cement/ bentonite grout to the top of the hole with the following proportions 30 L of water and 1 kg of bentonite per 40 kg of type II Portland cement . The hole will be refilled until it remains full in case of shrinkage or loss
By 08:00hrs, the descriptions of samples and test result carried out the previous day will be submitted to the supervision Site Manager.
The day after completions of a test hole, we will provide the supervision Site Manager with two copies of the preliminary borehole log for review.
2- weekly report will be submitted to you including all executed activities during previous week.
3 -monthly report will be submitted to you including all executed activities during previous month.
1* Stabilization and cleaning of the bore hole
Great care will be taken in keeping the walls and the bottom of the hole stable and undamaged by the use of casing or drilling mud according to soil formation the hole will be inspected and cleaned if necessary before sampling
The following is to be taken in consideration in each type of sampler to ensure the quality class
Core catcher spring is present immediately above the bit.
*B SHELBY TUBE:
* Sharp cutting edge
* Undusted and clean
* Driven by hydraulic pushing
*C ROTARY DOUBLE TUBE BARRELS (DENISON) AND MAZIER
* Cleaning the inner barrel is very important
*D SPLIT SPOON
Dimensions of barrel, falling weight and stroke height shall be as specified by the ASTM Standards.
3 * SAMPLES:
Undisturbed samples handle with care preserved in wooden boxes kept out from direct sun .Disturbed samples kept in plastic bags
4 * Site Responsibility
Site manager and QC Eng. are responsible for the performance of drilling.
Mechanical Eng. is responsible for keeping rigs and equipment in good condition according to standards
Supervisor and operator shall check their equipment daily before starting.
Enough samplers and tools together with the required spare parts will be available on site in case of any loss or damage of tools and equipment
1-Upon arrival to the site location , a meeting between him and his crew will be done in order to give them all the instructions and safety regulations such as:-
Wearing safety clothes
In case of fire
In case of accident or bodily injury
2- All site safety rules will be given to him by the company safety responsible.
3- He has to keep all these instructions continually and to be ensured that his crew is following the rules.
4- All report will be submitted to the general manager in case of any person will be replaced.
5- Site manager will determine and make the required preparation with the nearest place with adequate medical care in case of any bodily injury so as to be transported to by our truck and then following the doctor advice
6- In case of fire the work will stop immediately, all running engines will be switched off & start using fire pumps. All persons working on site are familiar with emergency procedure and trained for using fire pumps.
7- Persons working on site will be inspected daily for their safety clothes.
8- All equipment will be checked before starting the work daily.
GEO GROUP COMPANY (GGC) is one of the most important Soil Investigation companies in Egypt.
GEO GROUP COMPANY objective is the continuous improvement of soil investigation works through the attention to the needs of its employees and the commitment to a sustainable growth pattern also encompassing the careful assessment of the environmental Impact of its activities and the development of innovative and efficient technologies. The objective of this HSE plan is to promote Health, Safety & Environment of person working with GGC and prescribe certain rules, procedures and safe practices in order to create a working environment free of condition and factors that might contribute to An accident or injury /Illness. The specific HSE plan will provide guide line for safe execution of project
COMPANY HSE POLICY
It is policy of GEO GROUP Company OF Soil investigation to carryout all its work in a way that provides healthy and safe working practices and avoids risks of injury to anyone as a result of the activity for which the company is responsible. The over all responsibility for Health, Safety & Environment rests at the highest level, however, all Individual employees have important responsibility towards HSE and must participate in carrying out Policy. Appropriate training, supervision and information are provided to encourage and enable to carryout their duties safely.
Regular Inspection and monitoring of the activities is undertaken and accidents or incidents are investigated promptly so that appropriate action is taken to prevent from reoccurrence. Unsafe work practices by an individual can often lead to accidents even in safe working environment.
It is therefore our goal to eliminate both unsafe working condition and unsafe work practices.
It is the policy of our company to;
* Comply with all regulations governing Health, Safety & Environment at the job site.
* To take expedient actions to correct or isolate unsafe conditions or work practices.
* To promote Health, Safety & Environment awareness.
* To promote Health, Safety & Environment awareness.
* Hold each employee accountable for their individual responsibility for Health, Safety & Environment
* Every reasonable effort will be made to assure that employees can accomplish the safe completion of assigned tasks.
* No task is so important, nor so urgently, that we cannot take the time to do it safe.
SPECIFIC OBJECTIVES OF THE COMPANY HSE POLICY
- Prompt accident notification investigation and reporting.
- The establishment and maintaining of Healthy, Safe and Productive Working Environment.
- Protection of property equipment and material from all down grading incidents.
- Protection of Environment by removing all hazardous wastes and by proper house keeping.
- There should not be any employee to be found to have been negligent in the matter of Health,Safety & Environment or have contributed to accident through personnel neglect, then that person will be subjected to a Disciplinary Procedure which could result in dismissal.
ZERO ACCIDENT TOLERANCE POLICY
All endeavors to adopt a zero accident tolerance attitude to any occurrence threaten the Health, Safety & Environment of our work force and the general public. The management is committed to achieving and sustaining "ZERO ACCIDENT TOLERANCE" through continues improvement practices.
No Workplace Injuries and Occupational Diseases.
Promote HSE as an integral part of our day –to-day activates
Spread Health, Safety and Environment plan throughout the organization.
Enhance employee awareness and involvement in Health, Safety & Environment
Optimize the use of continuous improvement practices as the basis for "Zero
Accident tolerance" initiative.
Eliminate all Environmental impacts aspects.
RESPONSIBILITY OF INDIVIDUALS
GGC assigns the utmost importance to HSE and accident prevention to ensure that all employees are provided a Safe and Healthy Working Environment. The success of the policy requires all levels of personnel, from Management and employees, to become totally supportive and to develop a thorough understanding of HSE Regulation or procedure as it pertains to their respective jobs.
The following responsibilities are assigned to accomplish this objective:
Corporate Manager - HSE:
The Corporate Manager - HSE will be responsible for the development, co-ordination and maintenance of HSE system ensuring all personnel are fully supported with guidance, training, equipment, documentations, inspections and audit covering all Health, Safety & Environment and welfare matters. He has the authority to stop any activity which contravenes, good HSE practices that jeopardize the safety of the personnel.
It is natural that the HSE Programs are part of the responsibility of the Operations Manager who is in charge of activities at the Company. It is recognized that a strong support and active participation by the Operation Manager is essential.
-Assures that the subordinates have a thorough understanding of their HSE responsibilities
- Motivates the Organization to result in the maintenance of high quality HSE on all construction/work sites.
- Provides the HSE Section with necessary information required to evaluate the effectiveness of HSE Programs.
- Establishes control to assure uniform performance in compliance with HSE Program elements.
Geo Group Company management at all levels is dedicated to assure that its employees and others are provided a safe and healthy place to work on each of its projects. GGC shall be directly responsible for initiating and maintaining a positive Health, Safety & Environment effort to prevent his employees from working under conditions which are unsafe, unhealthy or unsanitary.
The Health, Safety & Environment program has been prepared to assist each employee i satisfying its moral, contractual and legal accident prevention responsibilities, in such a manner that a safe, efficient operation is assured. It incorporates the Health, Safety & Environment requirements and CLIENT Safe Work Practices and CLIENT HSE guidelines for GGC.
GGC will under no circumstances put any of his own employees at risk or jeopardize the health and Health, Safety & Environment of any employee of other project participants working on the project.
GGC HSE personnel shall see that there is an adequate Health, Safety & Environment procedure for the specific job to be done and that all procedures are well understood and followed. GGC will post Health, Safety & Environment signs, posters and banners at work areas promoting Health,Safety & Environment and informing workers of dangers and hazards associated with the work.
• Geo Group Co. shall ensure a safe working plan for each new job assignment is developed and analyzed for potential hazards by using the Job Health, Safety & Environment Analysis. The Job Health, Safety & Environment Analysis is also part of the supervisor’s duties and responsibilities as outlined in the Supervisors Health, Safety & Environment Logbook.
• GGC shall instruct each employee on the jobsite in the recognition and avoidance of hazards and unsafe acts and/or conditions applicable to its work environment to control or eliminate injury or illness. GGC shall enforce the project and statutory HSE rules on its employees.
• GGC is responsible for providing and requiring the use of appropriate personal protective gear and equipment in all operations where there is an exposure to hazardous conditions. All records shall be maintained at a location accessible to CLIENT.
Geo Group Co. shall provide CLIENT with a copy of GGC’s Hazard Communication Program and Health, Safety & Environment Data Sheet(s) (MSDS) for the chemical(s) or substance(s) intended to transport from the site. A bookcase, centrally located, will be dedicated for this information.Geo Group Co. is responsible for keeping this information current. GGC is responsible for maintaining a copy of GGC’s Hazard Communication Program and Material Health, Safety & Environment Data Sheet(s) onsite for GGC’s own reference and employee training. A complete set of MSDS copies shall also be kept at GGC’s medical facilities. The legal storage, use and disposal of wastes of any hazardous chemicals or substances are the responsibility of GGC, subject to review and approval by Client.
Geo Group Co. shall at a minimum comply with the following requirements:
• A permanently mounted extinguisher shall be placed on each item of mobile industrial equipment having a diesel or gasoline engine.
• All fire prevention/fire fighting equipment shall be inspected monthly to ensure they are in a good working order and replaced if faulty.
• Equipment shall be switched off during refueling.
Fire Prevention / Fire Fighting Plan
Geo Group Co’s overall jobsite fire prevention / fire fighting plan shall describe how GGC proposes to discharge its duties and shall also include the following topics at a minimum:
• An analysis of the major fire risks that must be protected against and the method of protection.
• The fire prevention training program.
• Schedules and checklists for fire prevention inspections.
Geo Group Co. will ensure all necessary precautions to control noise and in case of over noise, Precautionary Safety methods like Ear Muffs, Ear Plugs will be provided to employees working near to the particular area.
• Coverall shall be worn at all times. Sleeveless shirts and tank tops are not permitted.
• Steel toed leather Health, Safety & Environment shoes with shoelaces will be worn at all times.
Folding in of the back part as to convert to a slip-on shoe will not be permitted. Sandals, tennis shoes, or any other street type shoe will not be permitted.
• A hard hat or hair net as appropriate shall protect hair that could come in contact with or be caught in machinery.
• Health, Safety & Environment glasses, with side shields are required in plant and construction areas at all times when outside offices and vehicles. Dark Health, Safety & Environment glasses may be worn during daytime. Clear or amber glasses must be worn at night or in poor illuminated areas during daytime.
• Protective earplugs must be worn when noise levels in working areas exceed specified Health, Safety & Environment limits of 85dB, or as directed by CLIENT.
Hand and Power Tools
• All hand and power tools, whether furnished by GGC or by GGC’s employee shall be maintained in a safe condition.
• GGC shall not issue nor permit the use of unsafe hand or power tools.
• During the course of construction, all debris and scrap material shall be kept away from the work area.
• Garbage and other waste shall be disposed of at frequent and regular intervals in a manner approved by CLIENT.
GGC shall instruct all drivers to not smoke while driving and while being in client premises.
Smoking shall be permitted only in allowed / designated / permitted areas.
VEHICLE / EQUIPMENT SAFETY:
The vehicle shall have the adequate capacity for the required duty and have been purposely designed for the service allocated as well as maintained in safe working order.As a minimum the vehicle shall be equipped with the following features:
i. left and right side view mirrors
ii. Rear window defogger.
iii. Side impacts bars.
The vehicle such as Tractor's, Cranes, Bulldozers, front-end loaders and scrapers etc., shall include:
i. Over head protection canopy
ii. Automatically switched back-up alarm with intermittently sounding tone.
iii. Convex type rear view mirror.
iv. Parking brakes.
v. Safety locks on gear changes.
vi. Hearing protection for drivers on noisy equipment
vii. Operator and assistant to wear hardhat and safety boots.
Each vehicle shall be equipped with fire extinguisher properly ratted for the particular vehicles on mounted in an accessible and protected location. A complete first aid kit shall be carried in each vehicle.
No vehicle shall be used for conveyance of personnel unless that vehicle has been specifically designated and equipped as a passenger- carrying vehicles. The number of passengers doesn't exceed manufactures specification for the vehicles. The driver as well as passengers must be seated wearing seat belt during the journey.
It is to be ensured that the load being carried on a vehicles or secured and don't exceed manufacture specification as well as legal limits for the vehicles. For any motor vehicle parked on the road in the project sites engine should be put off and ignition keys kept in side the motor vehicles so that in an emergency the motor vehicle can be evacuated easily.
All laws and regulations concerning driving must be followed, including:
a) Person driving a motor vehicle must have valid drivers license
b) All traffic regulations must be obeyed.
c) Motor vehicles must be maintained in road worthy conditions.
d) Lights must be used as required.
e) Following alcohol/ illegal drug prohibition
f) Motor vehicle should have appropriate insurance.
g) Motor vehicle must be parked only at the assigned places and parking brakes applied.
h) Motor vehicle must not be parked on roads or areas near fire hydrants, other fire fighting facilities, power transformers or on inclines/slopes.
Tips for Safe Driving:
Inside the Vehicle:
• Door locks – Manually / automatically
• Seat adjustment and head restraint
• Seat belt and mirrors adjustment
• Scan gauges and alarms after starting the engine.
• Don't ignore/ overlook any alarm.
• Adjust A/C / heater, Vents/Windows.
Outside the Vehicle:
• Tiers, mirrors, under the vehicle
• Taillight, turn signals
• Lights – brake, Parking, headlight.
"SPEED THRILLS – BUT KILLS"
Speeding drivers are number one cause of accidents.
• Respect the speed limits (Upper and lower)
• Slow down – Somebody is waiting for you never over speed.
• Keep both hands on steering unless necessary.
• Drive smoothly and change the lanes, exit main roads and crossing carefully
• Always wear seat belt and insists the same to the accompanying the members
• Don't overtake at or while approaching a junction.
• Don't overtake where you can not see for a head to assure safe passage.
• Never overtake to conflict with others.
• Maintain a safe distance around your vehicles.
• Avoid tailgaters and let them pass
• Look a head and scan the road to get the big picture.
• Frequently view in the mirrors and avoid blind spots.
• Do not fix your vision on any objects.
• Scan the area and check the mirror before reversing
• Make a reverse move at the minimum speed
• Travel reverses to a distance sufficient to maneuver.
• Stop completely at stop sign
• Switch hazards light if you need stop due to failure in the vehicle
• Stop a pedestrian crossing and give right of way.
• Always wear the seat belt and ask the passenger to do the same. Move only if everyone seatbelt is fastened.
• Readjust seat and arm position to reduce fatigue from long period of driving.(Not to be done whilst the vehicle is moving)
• Turn headlight on at least 30 minutes before sunset.
• Use low beam when there is a car close in front or coming towards you.
Geo Group as a leading soil investigation Coin Egypt, which executes projects in the fields of Oil and Gas, petrochemicals and process industries , recognizes the impacts of protecting the health and safety of its employees, customers , suppliers and contractors personal within work premises over which it has control. Geo Group implements and safety management system to achieve improvement in the overall company health and safety performance including prevention of injury and ill health the principal health and safety objectives are :
- Provision of safe working environment.
- Identification of hazards and assessment of risks
-Implementation of necessary control measures to ensure that risks are reduced as low as reasonably practicable
-Compliance with applicable health and safety legal and other requirements that relates to Geo Group's health and safety risks.
-Encouragement of customers , suppliers and contractors to consider health and safety requirements in their activities.
Implementation of this policy is a prime managements objective and the responsibility of all employees.
GEO GROUP management avails sufficient resources including qualified and trained personnel to meet the policy objectives