Method Statement for Earthworks, Excavation and Backfilling.

Table of Contents

1.             Scope /Objectives

2.             Reference

3.             Access/Egress

4.             Logistics

5.             Health and Safety Hazards

6.             Definitions

7.             Responsibilities / Supervision

8.             Procedures /Method to be Employed

9.             Training

10.          Working hours

11.          House keeping

12.          Manpower Requirement & Supervision

13.          Material Requirement

14.          Plant & Equipment Requirement

15.          Q.C Approvals and other Documentation

16.          Supporting documentation

17.          Distribution

18.          Other information

19.          Site Safety Engineer’s Approval

20.          Attachments (Compulsary)

·      Risk Assessment

·      Inspection and Test Plan

·      Quality Control Check Lists

  

1.       SCOPE & OBJECTIVES

         This Method Statement outlines the procedures for Earthworks, Excavation and Backfilling.

2.       REFERENCES

Contract Drawing and specification

2.1    QCS Section 12 Earthworks and Particular Specification Clause 5.2

2.2    AMTC HSE Guidelines

2.3    British Standards – BS 1377 : Test on Soils

2.4    Project Specs, Section 12 - Earthworks

3.       ACCESS/ EGRESS

Access will be through designated entrance and exit pathways.

4.       LOGISTICS                                                                       

Contractor will deploy a dedicated team for the earthwork, excavation and backfilling.

                              

5.       HEALTH &  SAFETY HAZARDS

Contractor will comply with all safety measures as applicable to project safety requirements.

5.1    Excavations shall be inspected daily by Section Engineer / Supervisor / Safety Officer.

5.2    Excavation shall be re-inspected after rainstorms, earthquakes or any other hazard increasing occurrences.

5.3    A convenient and safe means of access such as stairway, ladder or ramp shall be provided for employees to enter and leave the excavated area.

5.4    Safe crossings shall be provided over trench excavations.

5.5    Before opening any excavation, all underground services shall be identified and the Supervisor shall explain to the employees all the necessary precautions that need to be taken in the work preparation.

5.6    In no case the excavated material shall be placed closer than 600mm from the edge of the excavation.

5.7    Excavations shall be provided with warning barricades.  Deep excavation to be barricaded with flashing lights during night.

5.8    The sides of excavations shall be sloped in order to avoid sliding of sand / earth.

5.9    Personnel Protection Equipment’s shall be used at all the times.

6.       DEFINITIONS

AEB – Arab Engineering Bureau (Consultant/Engineer)

AMTC – Abdullah Al Muftah Trading and Contracting Co., w.l.l (Main Contractor)

MS – Method Statement

QCP – Quality Control Procedures

ITP – Inspection and Test Plan

ITA – Independent Testing Agency

7.       RESPONSIBILITIES / SUPERVISION

The works will be undertaken by AMTC with a competent workforce to do the works conforming to the project specifications through the following responsibilities.

7.1 Project Engineer shall be responsible for the execution of this procedure and to ensure that works are undertaken in a safe manner to the requisite quality and to the time agreed timescale. He shall advise and coordinate with other contractors pertaining to access and interface requirements related to the excavation works to be undertaken.

7.2 Site Engineer shall be responsible for the site implementation of this procedure including control and the safety of the workers.

7.3 QA/QC Inspector shall be responsible for the supervision of tests and inspection, control approvals for testing    and inspection plan and to arrange documentation required.

7.4 The Surveyor in coordination with site engineer has the responsibility to perform all survey works according                to the IFC drawings.

7.5 Safety Officer shall be responsible for the strict implementation of safety procedure during work commencements.

8.       PROCEDURE / METHOD TO BE EMPLOYED:

8.1Preliminaries

a.       Excavations shall be inspected daily by the Site Engineer / Supervisor / Safety Officer.

b.       Excavation shall be re-inspected after rainstorms, earthquakes or any other hazard increasing occurrences if any.

c.         A convenient and safe means of access such as stairway, ladder or ramp shall be provided for employees to enter and leave the excavated area.

d.        Safe crossings shall be provided over trench excavations.

e.        Before opening any excavation, all underground services shall be identified and the Supervisor shall explain to the

                employees all the necessary precautions that need to be taken in the work preparation.

f.          In no case the excavated material shall be placed closer than 600mm from the edge of the excavation.

                 Excavations shall be provided with warning barricades.  Deep excavation to be barricaded with flashing lights during

                 night.

g.       The sides of excavations shall be sloped in order to avoid sliding of sand / earth.

       

         8.2 Setting out

a. Setting out of surveyed stations to be carried out from the approved control stations provided by BEST Bureau of Engineering Studies and temporary benchmarks. The extent of excavation shall be marked with the provision for working space and slopes for deep excavation. Level +3.0 QND as the starting level of the excavation.

b. Existing underground services are to be exposed and identified by hand excavation. These will be as-built and incorporated to the new services which will be formed as the combined services drawing. 

Proposed works to be done shall be submitted for Client approval.

      

        8.3 Sequences of Excavation will be executed as follows :

                                                                                                                                                                                                     

• The whole area will be scraped by bulldozers up to rock formation level which is the bottom of raft foundations/footings.

•The isolated foundations will be excavated down to the top level of hard rock.

•The foundations Pool Annex will be excavated -1.17M QND Level. The foundations for Main Villa will be excavated -0.82M QND Level. The Swimming Pool will be excavated -0.185M QND.

        Excavation level will be the bottom of foundation plus blinding thickness. 

        Backhoe/Excavator equipment will be used for excavation of desert fill materials

        Limestone / rock strata will be by excavator / rock breaker.

Excavated blinding levels will be tested for the required bearing capacity by relevant tests.

Hand Tools shall be used to do manual excavation as required.  Care to be taken to protect existing structures / underground services if any, while excavating adjacent to them.

Heavy equipment will not be allowed to access whenever the required excavation/formation level is reached to avoid disturbance of the strata.

        Independent Testing Laboratory shall be submitted to Client for approval.

8.4 Backfilling

Backfilling to be carried out around the structures in 250 mm thick layers with approved fill material.  Compaction will be done by jumping rammers / rollers / plate compactors as required to achieve the required minimum of 95% MDD.  Moisture content of the fill will be maintained within +/-3% of Optimum Moisture Content to achieve compaction requirement as per Clause 3.5 of QCS Section 12 Part 3.

The density of any layer requiring compaction shall be determined in accordance with the specifications at a minimum rate of one test per 100 meter run or 500 meter square, whichever is less.

The oven drying of soil and aggregates samples for testing shall not be carried out at a temperature in excess of 60° C and 100° C respectively.

The minimum frequency of density testing shall be 1 test per 500 m2 of prepared area or tests shall be carried out as directed by the Engineer.

8.5 Disposal of Materials

Excavated materials will be stockpiled on a designated place as agreed with the Engineer.

Suitable material arising from the excavation shall be screened and used for backfilling.  Unsuitable excavated material shall be disposed to an approved Government tip off location.

9.       TRAINING

      

Relevant trainings and orientations have been provided to person who will perform their specified task.

10.    WORKING HOURS

The working hours will be from 6:00AM to 6:00PM as agreed, with break time in between.

11.    HOUSE KEEPING

                                                                                               

Working Areas will be kept clean by disposing the waste materials at the designated areas.  At the end of  days’ work, installation supervisor will ensure that the debris are disposed off.

12.    MAN POWER REQUIREMENT

Foreman

Laborers

Operators

13.    PLANT & EQUIPMENT REQUIREMENT

                                                                                              

Excavator/Backhoe

Dump truck

14.    QC APPROVAL AND OTHER DOCUMENTRY REQUIREMENTS:

Follow approved Method Statement, ITP, QCP, HSE Plan, Material Approval & Checklist.

              

15.    SUPPORTING DOCUMENTATION:

This MS to be read in conjunction with the below referenced documents

·         Contract Specification & approved drawings.

·         Project Quality Plan

·         Project HSE Plan

16.    DISTRIBUTION

Copies of this MS will be circulated to the following for Information & action

·         Project Manager

·         Site Engineer

·         QA/QC Engineer

·         HSE Engineer

17.    OTHER INFORMATION

               Ensure that all the activities have been carried out to suit the site conditions and involved

                                                                          With Site –in – charge

  

18.    MAIN CONTRACTORS SAFETY ENGINEERS APPROVAL

APPROVAL STATUS		SIGNATURE
	Approved
	Approved subject to compliance with the following notes
	Not Approved – with reason

19.    ATTACHMENTS (Compulsory)

Risk Assessment

 Inspection & Test Plan

Quality Control Check Lists

PROCEDURE FOR CONDUCTING PLATE LOAD TEST

PROCEDURE FOR CONDUCTING PLATE LOAD TEST

Type of Test: Plate Load Test

Date of Test: 31.01.11

Dimensions of Foundation/ Test Pit:

Area of Pit: 1.0m X 1.0m

Depth of Pit below existing ground level: 0.75m

Dimensions of Plate for Plate Load Test:

Area: 0.45m X 0.45m

Thickness: 0.025m

Test Arrangements

1.    Foundation Pit shall be excavated up to a test pit depth of 0.75m.

2.    Test plate of given size of 0.45m X 0.45m and 0.025m thickness shall be placed on the prepared sub-base with provisions of 02 dial gauges to note the settlements with least accuracy count of 0.01mm.

3.    Bearing plate is placed on the test plate over which hydraulic jack is located.

4.    Another bearing plate is placed over hydraulic jack which act as load transferring media.

5.    Further, the system is loaded with point load pattern so that the net load in punching is applied on to the plate without any eccentricity. Point load can be a loaded excavator or loaded lorry or kentledge system, etc.

Loading Criterion

1.    Load is increased in increments of 25% of the ultimate load carrying capacity until it reaches the ultimate load intensity (ultimate load intensity is either given or assumed) or the total settlement of the plate is 25mm or the soil under the plate fails whichever occurs earlier.

2.    Settlement of the plate is recorded by dial gauges of minimum accuracy of 0.01mm fixed at diametrically opposite ends.

Unloading to check Rebound

1.    Entire load is removed quickly but gradually and the plate is allowed to rebound when no further rebound occurs or the rate of rebound becomes negligible the reading of the dial gauges are again noted.

Results

1.      From the data obtained during cyclic plate load test, the elastic rebound of the plate corresponding to each intensity of loading is plotted. The settlements of the foundation pertaining to the particular load intensities are computed along with plots.

SAMPLE OF STAIR PICTURE..

Although stairs are not part of the structural load bearing frame, they affect and they are affected by its behavior especially when horizontal loading is applied, mainly due to seismic actions

If the staircases are both properly placed in the structure’s plan and properly constructed they may even enhance the structure’s antiseismic behavior.

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Second Filipino Saint - PEDRO CALUNGSOD...

 

About Pedro Calungsod

Blessed Pedro Calungsod (c. 1654 – April 2, 1672) was a young Roman Catholic Filipino sacristan and missionary catechist, who along with Spanish Jesuit missionary Blessed Diego Luis de San Vitores, suffered religious persecution and martyrdom on Guam for their missionary work in 1672. Calungsod was beatified on March 5, 2000 by Blessed Pope John Paul II. On February 18, 2012, Pope Benedict XVI officially announced at Saint Peter’s Basilica that Calungsod will be canonised on October 21, 2012.
Very little is known about Pedro Calungsod. Historical records never mentioned his exact place of origin or who his parents were. He was merely identified as a teenage native of the Visayas in the Philippines. Historical research identifies Ginatilan in Cebu, Hinunangan and Hinundayan in Southern Leyte, and Molo district in Iloilo as probable places of origin. Loboc in Bohol also makes a claim.
Moreover, no one even really knows how Calungsod looked like. Calungsod is often depicted as a young man wearing a camisa de chino. He holds the martyr’s palm, indicating his death, or sometimes a crucifix, catechism book or rosary, representing his missionary work.
Few details of his early life prior to missionary work and death are known. It is probable that he came to one of the schools run by Jesuits, where he learned Catechism and Spanish language.
Nevertheless, we can be certain of Calungsod’s ecclesiastical provenance since the entire Visayas region was under the old Diocese (now Archdiocese) of the Most Holy Name (Cebu).

MISSIONARY WORK

Pedro was just one of the boy catechists who went with San Vitores from the Philippines to the Ladrones Islands in the western North Pacific Ocean in 1668 to evangelize the Chamorros, according to www.pedrocalungsod.org. In that century, the Jesuits in the Philippines used to train and employ young boys as competent catechists and versatile assistants in their missions. The Ladrones at that time was part of the old Diocese of Cebu.
Calungsod, then around 14, was among the young exemplary catechists chosen to accompany the Jesuits in their mission to the Ladrones Islands (Islas de los Ladrones or “Islands of Thieves”). Around 1667, these were later named Marianas (Las Islas de Mariana) in honor of Queen Maria Ana of Austria who supported the mission.
Life in the Ladrones was hard. The provisions for the Mission did not arrive regularly; the jungles were too thick to cross; the cliffs were very stiff to climb, and the islands were frequently visited by devastating typhoons. Despite the hardships, the missionaries persevered, and the Mission was blessed with many conversions. The first mission residence and church were built in the town of Hagåtña in the island of Guam.

MARTYRDOM

According to Jesuit Martyrs in Micronesia written by Francis X. Hezel, SJ,  the Jesuit mission in the Mariana Islands was the first in Oceania; it soon also proved to be one of the bloodiest. On 15 June 1668, San Vitores and a band of five other Jesuits arrived on Guam, the southernmost and largest island in a cordillera of fifteen volcanic islands. With the missionaries came a garrison of thirty soldiers, many of them colonials from the Philippines, whose responsibility was to protect the missionaries and to pacify the local people if need should arise.
At this time, Spanish missionaries were actively converting Chamorros to Roman Catholicism. This relationship was peaceful at the beginning with the Spaniards, who were led San Vitores. The initial reception of the missionaries by the Chamorro people was enthusiastic and reassuring. However, that changed over time when Chamorros grew resentful of the way their language and other customs were being replaced. Chamorro deaths had also increased due to foreign-borne illnesses. (www.guampdn.com)
Very soon, a Chinese quack, named Choco, envious of the prestige that the missionaries were gaining among the Chamorros, started to spread the talk that the baptismal water of the missionaries was poisonous, www.pedrocalungsod.org explained. And since some sickly Chamorro infants who were baptized died, many believed the calumniator and eventually apostatized. The evil campaign of Choco was readily supported by the Macanjas who were superstitious local herbal medicine men, and by the Urritaos, the young native men who were given into some immoral practices. These, along with the apostates, began to persecute the missionaries, many of whom were killed.
The most unforgettable assault happened on April 2, 1672, Saturday just before the Passion Sunday of that year. At around seven o’clock in the morning, Pedro – by then already about seventeen years old, as can be gleaned from the written testimonies of his companion missionaries – and San Vitores came to the village of Tomhom [Tumhon; Tumon], in Guam. There, they were told that a baby girl was recently born in the village; so they went to ask the child’s father, named Matapang, to bring out the infant for baptism. Matapang was a Christian and a friend of the missionaries, but having apostatized, he angrily refused to have his baby christened.
Meanwhile, despite the growing distrust and animosity between Chamorros and the Spanish, San Vitores and Calungsod visited Matapang’s home and baptized Matapang’s daughter. It is unclear whether San Vitores came unannounced or if he had been invited into the home by Matapang’s wife.
To give Matapang some time to cool down, Padre Diego and Pedro gathered the children and some adults of the village at the nearby shore and started chanting with them the truths of the Catholic Faith. They invited Matapang to join them, but the apostate shouted back that he was angry with God and was already fed up with the Christian teachings.
Determined to kill the missionaries, Matapang went away and tried to enlist in his cause another villager, named Hirao, who was not a Christian. At first, Hirao refused, mindful of the kindness of the missionaries towards the natives; but, when Matapang branded him a coward, he got piqued and so he consented.
When Matapang learned of the baptism, he became even more furious. He violently hurled spears first at Pedro. The lad skirted the darting spears with remarkable dexterity. Witnesses said that Pedro had all the chances to escape because he was very agile, but he did not want to leave Padre Diego alone. Those who personally knew Pedro believed that he would have defeated his fierce aggressors and would have freed both himself and Padre Diego if only he had some weapon because he was a valiant boy; but Padre Diego never allowed his companions to carry arms. Finally, Pedro got hit by a spear at the chest and he fell to the ground. Hirao immediately charged towards him and finished him off with a blow of a cutlass on the head. Padre Diego could not do anything except to raise a crucifix and give Pedro the final sacramental absolution. After that, the assassins also killed Padre Diego.
Matapang took the crucifix of Padre Diego and pounded it with a stone while blaspheming God. Then, both assassins denuded the bodies of Pedro and Padre Diego, dragged them to the edge of the shore, tied large stones to their feet, brought them on a proa to sea and threw them into the deep. Those remains of the martyrs were never to be found again.
The companion missionaries of Pedro remembered him to be a boy with a very good disposition, a virtuous catechist, a faithful assistant, a good Catholic whose perseverance in the Faith even to the point of martyrdom proved him to be a good soldier of Christ. (www.pedrocalungsod.org)

BEATIFICATION

A year after the martyrdom of San Vitores and Calungsod, a process for beatification was initiated but only for San Vitores. Political and religious turmoil, however, delayed and eventually killed the process. In 1981, when Agaña was preparing for its 20th anniversary as a diocese, the 1673 beatification cause of Padre Diego Luís de San Vitores was rediscovered in the old manuscripts and taken up anew until Padre Diego was finally beatified on October 6, 1985. It was his beatification that brought the memory of Pedro to our day.
Beatification is the act by which the Church, through papal decree, permits a specified diocese, region, nation, or religious institute to honor with public cult under the title “Blessed” a Christian person who has died with a reputation for holiness.
In 1994, then Cebu Archbishop Ricardo Cardinal Vidal asked permission from the Vatican to initiate a cause for beatification and canonization of Pedro Calungsod. In March 1997, the Sacred Congregation for the Causes of Saints approved the Acta of the Diocesan Process for the Beatification of Pedro Calungsod. That same year, Cardinal Vidal appointed Fr. Ildebrando Jesus A. Leyson as vice-postulator for the cause and was tasked with the compilation of a Positio Super Martyrio to be scrutinized by the Sacred Congregation for the Causes of Saints in Rome. The positio, which relied heavily on the documentation of San Vitores’s beatification, was completed in 1999.
Blessed John Paul II, wanting to include young Asian laypersons in his first beatification for the Jubilee Year 2000, paid particular attention to the cause of Calungsod. In January 2000, he approved the decree super martyrio (concerning the martyrdom) of Calungsod, setting his beatification on March 5, 2000 at Saint Peter’s Square in Rome. (www.wikipedia.com)

SAINTHOOD

On December 19, 2011, the Holy See officially approved the miracle qualifying Calungsod for sainthood by the Roman Catholic Church. The recognised miracle dates from 2002, when a Leyte woman who was pronounced clinically dead by accredited physicians two hours after a heart attack was revived when a doctor prayed for Calungsod’s intercession.
Cardinal Angelo Amato presided over the declaration ceremony on behalf of the Congregation for the Causes of Saints. He later revealed that Pope Benedict XVI approved and signed the official promulgation decrees recognising the miracles as authentic and worthy of belief. The College of Cardinals were then sent a dossier on the new saints, and they were asked to indicate their approval. On 18 February 2012, after the Consistory for the Creation of Cardinals, Cardinal Amato formally petitioned Pope Benedict XVI to announce the canonization of the new saints. The Pope set the date for 21 October 2012 (World Mission Sunday).
After Saint Lorenzo Ruiz, Calungsod will be the second Filipino declared a saint by the Roman Catholic Church. The Roman Catholic calendar of Martyrology celebrates Calungsod’s feast along with Blessed Diego Luis de San Vitores every 2 April. (www.wikipedia.com)