Geo Herald Newsletter_March 2021_Flip Book 2

Volume 92 MARCH 2021 Message from to go for introspection to find out each individual’s capabilities, to further strengthen or to take different assignments, so that, the SK leveraging of strength will play a major role. Dear L&T Geo-ites, Many of our colleagues suffered during this pandemic period and confronted the challenges strongly, which has resulted in Greetings to all! reasonable contribution in revenue, even though we fall short from the budgeted number. The challenging pandemic financial year 2020-21 has come to an end, but the second wave seems to be threatening. It is very clear At this juncture, I would like to once again re-emphasize that that the belief of `practising a particular thing for more than 21 the growth of Geo at a particular rate is more important, so that days becomes a culture’ is proven wrong! Many people still believe everyone would benefit through their personal growth along with that wearing mask is a hindrance, but in reality, wearing a mask organizational growth. Many young people are very active and protects not only from coronavirus, but also from normal colds and competent enough to contribute for twenty-five percent year-on- allergies. Wearing a mask also hides facial expression, and in a way, year growth of Geo. This has to become a reality and everyone in it helps many people in their joint family!! Having said that, it is Geo must grow at a faster rate. imperative and unavoidable to wear mask, not only to protect each one’s family, but also to take care of organizational growth - what New ideas are required, and I strongly believe that they would we have elaborated in the editorial of the previous issue. definitely come from you, to make Geo an outstanding and great number-one ground engineering business company very soon. The year end might define each one’s contribution and provoke Wish you all a very successful and healthy financial year 2021-22! All the best! Warm regards, S. Kanappan. MTHL - Mumbai 1

CONTENTS River Water Intake System for IWT Terminal at Sahibganj, Jharkhand 2 Underwater Cutting 4 HSE Star Performer Award 6 River Water Intake Covid - Safety precaution at CMRL Central Square 7 System for IWT Terminal at Sahibganj, Knowledge Sharing Session at L&T GeoStructure 8 Jharkhand RAPL 9 Going Digital – Orientation Sessions 10 The river water intake system is designed to cater the water demand On a quest to build Soil Lab Testing expertise 11 of dust suppression system for the project constructed on the bank for prestigious HSR project of Ganga river. The project was executed by considering that the Maximum Courses Completed in ATL water demand of dust suppression system will meet through water supply connection from the local municipal authority. Therefore, GET Musings 12 all civil, mechanical and electrical woks were already completed considering the above indicated water source. However, allocation Methodology: from the local municipal corporation has not been accorded for the project. The water is available throughout the year in the The dust suppression system requires 78 m3/hr of the water for river Ganga and ground water is also available at lesser depth in the operation. Various options were considered for the river water the project site. Therefore, the river water and borewells were intake system. The main constraint was to design the optimized proposed as the source of water for the dust suppression system. scheme with less execution time as berth was already constructed. However, the water demand of dust suppression system is higher Therefore, the pumping scheme, supply pipe material and the pipe than yield of common borewell. Therefore, river water is considered route has been decided such that the designed system will have as the main source of water and the river water intake system is less excavation work, optimized cost and less installation time. The designed to cater the demand of the dust suppression system. following are the different options that were considered for the river water intake system to meet the project requirements: The berth was already constructed. Hence, the system needs to be designed without causing much excavation and disturbance to the 1. Mounting end suction pump on the top of berth. constructed system which was the major challenge in designing and selection. Also, the river Ganga has high water currents. Therefore, 2. Mounting the submersible pumps directly on the river bed. the system needs to be designed to sustain the water current loads as well as to protect the system from damaging due to solid 3. Construction of the pump house inside the river (intake well). materials flowing along the river. The various options were studied and analysed during the design of the river water intake system. 4. Construction of shallow well on the river bank. The borewell pumps with the casing pipe have been selected for the project based on the techno-commercial aspects. The system 5. Mounting the borewell pump along the piles inside the river. is designed to pump the river water into the underground service water tank using borewell pumps and further it is utilized for the The one of the above five options needs to be selected for the river dust suppression system. water intake system. Therefore, the concept selection matrix was used for the selection of the best option for the river water intake system. However, the pre-requisite for the concept selection matrix is that the there should be some criteria for the selection. The optimum cost, minimal excavation work, less execution time, less frequent maintenance, and installation feasibility were chosen for the criteria of the selection. The weightage was assigned based on the importance of each criteria and ratings were assigned to each option. Then the option of mounting bore well pump and casing pipe along the piles inside the river water was chosen based on the option selection matrix as it had higher ratings and also considering the techno commercial aspects. The concept selection matrix used for the selection is provided in the table no.1. Criterion River Water Intake Scheme Options Weightage Option 1 Option 2 Option 3 Option 4 Option 5 Cost 0 0 -3 -2 0 0.21 Excavation work 0 0 -3 -2 0 0.18 Ease of 0.11 maintenance 0 -2 0 0 0 Feasibility of 0.19 installation 0333 3 0.13 Life 0.18 Installation time 0 -2 1 1 0 - Total Rank 0 0 -3 -3 0 0 -0.48 -1.01 -0.62 0.57 2354 1 2

The design of the river water intake system involved design of piping 4. Name of the Authors: for water distribution, selection of the borewell pumps, design of a. Aniket Jadhav casing pipe. The pipe diameter was obtained by 1D continuity b. Gobinathan D. equation. The material of the pipe was considered as HDPE PE100 c. Sundaresan M. PN10 by considering the techno commercial aspects. The head loss d. Palaniappan T. in the pipe was calculated using the Hazen William’s formula and 5. Paper URL: http://www.jetir.org/papers/JETIR2103042.pdf loss in the fittings was calculated using Darcy Weisbach’s Formula. The net head for the pump was selected as sum of the net static head and head loss in the pipes and fittings. The borewell pumps of net capacity of 90 m3/hr was provided by considering 10 % margin. The three numbers of pumps (2 working + 1 standby) of capacity 45 m3/hr each and 40 m of water column were provided to cater the demand of dust suppression system. The casing pipe for the borewell pump is designed according to the guidelines provided by IS 8110. The typical arrangement is shown in figure 2. Publication of the work: This article was submitted in the renowned journal named, “Journal of Emerging Technologies and Innovative Research” for publication. The journal accepted the article and published their journal on 10 March 2021. The following are the details of the publication: 1. Name of the Journal: Journal of Emerging Technologies and Innovative Research. 2. Journal Details: ISSN: 2349-5162 (UGC Approved) 3. Article Title: Design and Implementation of River Water Intake System 3

UNDERWATER CUTTING Sea water intake and Outfall project, Uppur Introduction This project involves construction of seawater intake pump house in marine front, intake jetty with roads with pipe supports, trestles and other necessary structures. Despite, several marine challenges and the pandemic situation, our team never compromised on quality and safety. External and internal training was facilitated regularly to all our staff and workmen to improve the standard of working, continuously adhering to quality and safety norms. With the average manpower of 450, we achieved 3 million safe man hours and 3212 training man hours from the commencement of the project till date. Hindrance during erection of “I” Girder and other structure ship raising, repairs, construction, removing machinery and fittings to build jetty in Zone 3 from unsalvageable materials Heavy Cranes were loaded in barges for erecting “I” girder and other structures. The problem we faced during erection in zone 3 is that we were unable to get the reach of the crane boom for the I girder load to maintain safe working condition. While trying to remove liner using vibrohammer, the point of Checks to ensure safe underwater operation contact of liner got damaged due to vibration. If further lifted, there may be chances of fall of liner. So, we decided to go for • Only competent divers with valid training and medical certificate underwater cutting to remove the liner. shall be allowed. Limitations and safe precautions in Underwater cutting • Test certificate of compressor, air filter and other equipments used for diving. (Certified diving equipment). The underwater environment puts special limits and restrictions on the operator by limiting time at the bottom, particularly at greater • Weather conditions like high tides, wind speed, cyclone, depths. Because time is vital in underwater work, saving even a few visibility under water. minutes is important in terms of work done per hour. • Awareness of emergency procedures. Underwater cutting processes has been used for several applications: • Work permit shall be made before diving. • Rescue boat, PFD and first aid medication needs to be available near the diving zone. • Competent supervision. • Pulse to be checked before and after diving. 4

• Marking the diving zone with Alfa flag. FIRE AND EXPLOSION • Keep handy fire extinguisher near compressor/welding machine. Most underwater cutting operations use oxygen; Oxygen • Grab line/communication rope shall be used to provide signal to itself is not flammable, but the supervisors on surface. presence of pure oxygen drastically increases the speed and force by which burning takes place. Never • The job/working materials need to be secured to prevent fall/ allow oil, grease, or other petroleum-based substances to come in slide over diving team. contact with cylinder valves, regulators, hoses or any other part of the oxygen supply system. Chain or secure cylinders to an object • Rubber gloves shall always be worn under leather handgloves such as a cylinder cart, wall, workbench, post, etc. When moving along with full-body immersion/diving suit cylinders, always be sure that valve protection caps are securely in place. Never use compressed air instead of oxygen. Keep oxygen cylinders away from electrical connections. REMOVAL OF LINERS Finally remove the liners which acts as an obstacle for erection of “I” girder by following sequence WARNING 1. Movement of barge near diving zone. SERIOUS INJURY OR DEATH may result if this 2. Lock the movement of barge. underwater cutting equipment is not properly used. Only trained professionals can perform underwater 3. Diver team reach the liner location through boat. cutting and welding operations. Observe all safety precautions on landside and underwater, during diving operation. 4. When divers do the cutting, the liner will be kept by crane using Training and proper supervision are important for a safe dive lifting tools and tackles to avoid fall of material. operation. No work of any kind should be permitted on the surface over the area where the diver will be working. The diver’s workzone 5. Manbasket will be used by workers to lock the slings with liner radius should be at least equal to the working depth of the dive. top. Alfa flag is used to indicate diving zone. 6. Once the underwater liner cutting completed, all workers will PREVENTING ELECTRIC SHOCK INJURY OR be cleared from the swing area (divers, boat operator, helper, DEATH supervisor.) Inspect equipment to be sure all insulations and 7. Removed liner will be placed in the levelled surface with other protective covers are always in place and in stoppers. good condition. Do not touch the electrode or any live electrical part and workpiece at the same time. The diver/welder/cutter must never allow themselves to become part of the electrical circuit. The use of AC power supplies for welding or cutting current is not recommended. Vengateshwaran M P – EHS Aravind G – EHS 5

HSE STAR PERFORMER AWARD L &T GeoStructure – BHEL PANKI Project has been awarded with “HSE Star Performer award – 1st Prize“ from Bharat Heavy Electrical Limited, for 2nd Quarter of Financial year 2020-21 in its Power Sector Northern Region (PSNR) amongst all projects. L &T GeoStructure – BHEL ENNORE Project has been awarded with “HSE Star Performer award – 2nd Prize“ from Bharat Heavy Electrical Limited, for 2nd Quarter of Financial year 2020-21 in its Power Sector Southern Region (PSSR) amongst all projects. The award was presented to Mr. Sanjeevi Perumal – (Project Manager) & Team by Mr. Bajun Murmu (General Manager/Ennore SEZ/BHEL) on 50th National Safety Week closing ceremony held on 10-03-2021. 6

Covid - Safety precaution at CMRL Central Square Disinfection and Sterilization at Site & Office: Covid - Vaccination injection to our CMRL Central Square site Kabasura kudineer provided to our employees employees with prior tie-up with Chennai Corporation Health Department: 7

Knowledge Sharing Session at L&T GeoStructure “7 Strategies to Build a More Resilient Team” on 27 February How to Stay Optimistic (When Everything Is Awful)” on 5 March 2021; Mr. Nupur Kalita from Tendering & Contracts 2021 by Mr. Siva Vigneesh N from SCM 5 Principles to Guide Adaptive Leadership on 13 March 2021 How to Increase Your Influence at Work on 20 March 2021 by by Mr. Gopu R from Design Mr. Prasanth Antony V from HR SOLO RAPL WINNER TEAM RAPL WINNERS MARCH 2021 MARCH 2021 - HR Nagarajan S 8

Going Digital – Orientation Sessions for Lab Technicians and New Entrants at HSR Learnings learnt and opportunities once created are always there venture for L&T GeoStructure. As a first step, 60 technicians to stay. This pandemic had truly made organisations go DIGITAL, have been hired and various training initiatives are planned and and L&T Geo too has been caught in that swirl. Anything we think organised simultaneously. As a key initiative for every new entrant, to execute today, DIGITAL is the first thought and choice too. The an orientation session was organised at HSR for Soil Lab Technician world has shrunk and sites are more equipped with technology for on 10 March covering 60 participants. Sessions covered are Know implementation of ideas and easy reach to employees. Your Organisation – L&T Construction and L&T GeoStructure, Code of Conduct, L&T Core Values and Office Etiquette. High Speed Railway – This project has many `firsts’ and a world- class lab facility engaging close to 300 technicians was a new 9

On a quest to build Soil Lab Testing expertise for prestigious HSR project One of the most prestigious projects of our country, the MAHSR These programs are short but effective, giving space for the bullet train project has opened up multiple avenues in innovation technicians to hone their technical skills. The first training program to create strong foundations. L&T GeoStructure has come up was conducted on February 6 and 7, with a team size of 19 with the excellent idea of building one of Asia’s largest labs in the members, which became a revelation with bewildering response outskirts of Surat, for performing soil tests. This has now come in LinkedIn. to the implementation phase with around 60+ lab testing team working at HSR site with 15 engineers and experts from R&D for The second training happened on March 20 and 21, and this guidance. time with a much bigger team size of 42 new recruits and a well- experienced faculty from a reputed institute. Happy to share few In recent times, HR had come up with phenomenal training glimpses of the training program. programs, inviting Ph.D. scholars from top institutions for 2 days. We strongly feel that our initiative of building technical expertise will hugely contribute to the success of the prestigious HSR project. 10

Maximum Courses Completed in ATL JAN - MAR Sl NO Course Name NAME Completion Status Campus to Corporate - Mastering Non Verbal 1 Communication ADITYA RAJENDRA SHINDE Completed Prevention of Sexual Harassment (PoSH) at Workplace 2 Certification in Project Management ADITYA RAJENDRA SHINDE Completed 3 Cyber Security Awareness ADITYA RAJENDRA SHINDE Completed 4 Certification in L&T Corporate Governance & Statutory ADITYA RAJENDRA SHINDE Completed Compliance 5 Certification in Enterprise Risk Management ADITYA RAJENDRA SHINDE Completed Quality Management System 6 Certification in Health, Safety and Environment (HSE) ADITYA RAJENDRA SHINDE Completed 7 ADITYA RAJENDRA SHINDE Completed 8 ADITYA RAJENDRA SHINDE Completed 9 Certification in Six Sigma BIR KANTA BHATTACHARJEE Completed 10 Certification in Business Etiquette BIR KANTA BHATTACHARJEE Completed 11 Competency Certification in Emotional Intelligence BIR KANTA BHATTACHARJEE Completed 12 L&T Radio - Coming soon... GOTTIPALA RAJESH Completed 13 Welding Engineering GOTTIPALA RAJESH Completed 14 Competency Certification in Creativity GOTTIPALA RAJESH Completed 15 Competency Certification in Emotional Intelligence KRISHNA KUMAR YADAV Completed 16 Certification in Health, Safety and Environment (HSE) KRISHNA KUMAR YADAV Completed 17 Certification in Business Etiquette KRISHNA KUMAR YADAV Completed 18 Campus to Corporate - Communication - Your first tool MAHESH KUMAR Completed 19 Campus to Corporate - Mastering Non Verbal Communication MAHESH KUMAR Completed 20 Campus to Corporate - Innovation and Creativity MAHESH KUMAR Completed 21 Campus to Corporate - Make Smart Decisions MAHESH KUMAR Completed 22 Campus to Corporate - Skyrocketing your personal productivity MAHESH KUMAR Completed 23 Digital Transformation MAHESH KUMAR Completed 24 Understanding Innovation MAHESH KUMAR Completed 25 Competency Certification in Emotional Intelligence KRISHNA MURTHY Completed 26 Certification in Business Etiquette KRISHNA MURTHY Completed 27 Certification in Fundamentals of Road Construction KRISHNA MURTHY Completed 28 Competency Certification in Execution Management KRISHNA MURTHY Completed 29 Cyber Security Awareness SURESH CHOUHAN Completed 30 Competency Certification in Creativity SURESH CHOUHAN Completed 31 Competency Certification in Plan for Results SURESH CHOUHAN Completed 32 Certification in Health, Safety and Environment (HSE) SURESH CHOUHAN Completed 33 Email Etiquette VIJAYA SUNDAR M Completed 34 Competency Certification in Operational Excellence VIJAYA SUNDAR M Completed 35 Prevention of Sexual Harassment (PoSH) at Workplace VIJAYA SUNDAR M Completed 11

GET MUSINGS Now when I look back, it doesn’t seem that Initially I was a bit nervous because of my transition to a professional long ago, when as a final year student, I got life, and I thank the seniors present there during my training period, selected by L&T. To get a job and that too in one for their guidance. They were informative and helpful, both on the of the more prestigious companies, was really a professional and personal front. I was posted in three departments very proud moment for my parents and I. I was i.e EHS, QA/QC and execution in site. In all departments, I got to really excited to join and start my professional learn a lot of new things. Many interesting activities such as “track career. Even during the coronavirus pandemic, hopper construction”, “coal berth construction” were going on, Saswat Pattnaik when the whole world came to a standstill, our so it was an amazing learning curve for me. Working at site made orientation programme went on very smoothly. Since it was the me realise that “safety” and “quality” are the top priority of L&T’s first virtual orientation meet in L&T’s history, we GETs and PGETs work culture. take pride in it. Recently I have been posted at Chennai Headquarters for training I was assigned to GeoStructure IC and we got orientation from in “Procurement” department. I am looking forward to many more various department heads giving insights of structure, roles and new learnings during my time here. responsibilities of their respective departments. Then I was posted to JSW EQ Paradip where my official training commenced. Thank you Editorial L&T GeoStructure Team Mount Poonamallee Road, Manapakkam Chennai - 600 089, INDIA Tel: +91-44-2270 4040 Fax: +91-44-2270 4343 e-mail: [email protected] | Website: www.Lntecc.com Mr. Bino Mathew Jose, Ms. Anila Manoharan, Mr. Murugan Paramaguru Published by L&T GeoStructure from Chennai. The views expressed in this bulletin are not necessarily those of the management of L&T GeoStructure. The contents of this bulletin should not be reproduce1d2without the written consent of the editorial team. Not for sale - only for free circulation to employees of L&T GeoStructure through e-mail.