IRICEN Journal of Civil Engineering Volume 12, No. 2 & 3 www.iricen.indianrailways.gov.in June & Sept. 2019 Indian Railways Institute of Civil Engineering, Pune From Director’s Desk Dear Readers, In this edition of IRICEN Journal, a technical paper related to dismantling of existing Road over Bridge is included which is a detailed narration of challenges encountered while demolishing such a massive structures and solutions adopted by the Engineers. Another paper is about rectification of Up-heaved portion of ballastless track in which author have discussed various possible options and the most appropriate solutions. Next technical paper talks about the detailed mathematical background for the design of ground improvement system. Another paper tells about the usefulness of google mapping with respect to railways affecting tasks and last but not least paper talks about the Time Dependent Stresses in Reinforced Concrete Circular columns from the point of view of Indian Railways Bridge Codes. I sincerely hope that the readers would find these papers and other articles contained in this Journal informative and useful. I also welcome Engineers to come forward with their valuable suggestions and contributions of technical papers, news items, articles etc., for inclusion in the forthcoming issue of this journal. Pune (Ajay Goyal) October 2019 Director INDEX EDITORIAL BOARD Shri Ajay Goyal I) Railway News.............................................................................................. 03 Director/IRICEN II) Technical Papers Chairman 1 - Dismantling of Delisle ROB at Lower Parel in Mumbai............................. 09 Shri U S S Yadav, CAO/C/WR Shri Vilas Wadekar, CE/C/HQ/WR EDITING TEAM 2 - Rectification of Up-Heaved Portion of Ballast Less Track Shri R K Bajpai (RHEDA 2000-VOSSLOH300-IU System)................................................ 20 Sr. Professor/Track-2 Shri Sandeep Gupta, Chief Engineer / S / USBRL Shri Sumeet Khajuria, Dy. Chief Engineer / USBRL Executive Editor Shri Anirudh Bansal, XEN / C / USBRL 3 - Design of Ground Improvement System for Construction of Embankment on Soft Soils......................................... 25 Shri S K Agarwal Shri R. K. Shekhawat, Sr. Professor (Projects) / IRICEN Professor/Bridges-1 4 - Google Mapping of Railway Affecting Tanks Executive Editor in Ongole Sub-Division............................................................................ 33 Shri Pratham Agrawal, Sr. ADEN / OGL / SCR Shri Shailendra Prakash 5 - Time Dependent Stresses in Reinforced Concrete Circular Columns From The View of Indian Bridge Codes..................................... 35 Asst. Library & Inf. Officer Shri R. Sundaresan, SSE/Drg./CAO/C/MS/SR Assistant Editor 6 - A Comprehensive Approach for Damage Assessment & Repair of Concrete Structures.................................................................................. 42 Shri Souvik Sen Gupta, Secretary to GM, Eastern Railway Shri Pravin Kotkar 7 - Rationalising the Index Section of Projects For Economical and Sr. Instructor/Track-1 Faster Execution...................................................................................... 47 Editorial Assistant Shri Neeraj Jain, Retd. IRSE III) Literature Digest...................................................................................... 54 IV) Updates of Codes & Manuals................................................................. 59 V) IRICEN Calendar of Courses - 2019........................................................ 64 The papers & articles express VI) SSTW Calendar of Courses - 2019......................................................... 65 the opinions of the authors, and do not necessarily Suggestion for improvement of IRICEN JOURNAL OF CIVIL reflect the views of IRICEN ENGINEERING are welcome from the readers. Suggestions editorial panel. The institute may be sent to [email protected] is not responsible for the statements or opinions Guidelines to contributors published in its publication. Articles on the Railway Civil Engineering are welcome from the authors. The authors who are willing to contribute articles in the IRICEN Journal of Civil Engineering are requested to please go through the following guidelines : 1. The paper may be a review of conventional technology, possibilities of improvement in the technology or any other item which may be of interest to the readers. The paper should be reasonably detailed so that it could help the reader to understand the topic. The paper may contain analysis, design, construction, maintenance of railway civil engineering assets. The paper should be concise. 2. The journal is likely to be printed in a paper of size 215 mm X 280 mm. While sending the articles the author should write in 2 columns. Sketches, tables and figures should be accommodated in a 2 column set up only. 3. Author should send the original printout of photograph along with the digital copy of the photograph. 4. Soft copy as well as hard copy of article must be invariably sent to the editors of concerned subject. 5. Only selected articles will be included in the IRICEN Journal of Civil Engineering. 3 Railway News Free WiFi ‘RailWire’ at 6,485 To get an estimate of data usage in Mumbai, the Railway Stations in Next 100 Days Railways measured the consumption in December 2018 and found that 32 lakh people consumed close under Digital India Drive to 725 TB of data. If all goes to plans and promises, Internet will soon be Interestingly, the railway officials accept that most like water at railway stations across the country. The of these people use the WiFi for free download of Indian Railways has set itself a target — providing free movies, serials, and even adult content. Many of them WiFi at 6,485 railway stations in the next 100 days. also reportedly sit along the railway station premises While they have already completed installing WiFi — either on the FOBs, ticket counters or platforms — services at 1,603 stations, authorities claim that to avail this facility. the balance 4,882 stations will be completed within Meanwhile, the railways have also proposed a Digital this stipulated time frame. Previously, Google had Railway Corridor that will have 10 Mhz spectrum in 700 launched a similar project that provides free WiFi Mhz band. This will be used to improve the safety of across 400 railway stations in the country. the running trains and enhance passengers’ interface Currently, on the Western and Central Railways, 260 with railwaymen. railway stations, which includes a majority of Mumbai Ref: http://www.railnews.co.in suburban stations, already have this facility. In the coming days, 245 stations on CR and 281 stations on WR will also have WiFi facilities. Bhaupur-Khurja Section of Dedicated Railways Reach: Freight Corridor on Allahabad Division • 4,882 – Stations where work is still pending to Open in Nov 2019 • 1,603 – Installations already complete Indian Railways network eyes infrastructural boost! In • 400 stations – in India that use Google’s free a big development for the dedicated freight corridor WiFi services (DFC) project, the Bhaupur and Khurja section of the Eastern Dedicated Freight Corridor (EDFC) in Uttar • 50 Mbps – promised speed of the WiFi services Pradesh (UP) will open by the month of November • 30 minutes – of free access after first login this year, according to a recent PTI report. This will result in the reduction of pressure and congestion • 260 – Stations on WR and CR that already have on the saturated trunk route of the North Central the free WiFi Railway (NCR) between Kanpur-New Delhi, stated the • 245 – CR stations in line to get the service Dedicated Freight Corridor Corporation India Limited (DFCCIL). • 281 – WR stations set aside to get the facilities The DFCCIL is the organisation responsible for • 32L – Mumbai commuters who used free WiFi in implementing the DFC project under the Railway Dec 2018 Ministry. With the shifting of freight trains from the • 725 TB – Data used by Mumbai commuters in Indian Railways main lines to the DFC route, the Dec 2018 network will be decongested, resulting in faster movement of trains. A railway official said, “The IR’s subsidiary RailTel, in a tie-up with Tata Trust, is providing the WiFi under According to the report, the decision to open the the name RailWire. It focuses on broadband and VPN stretch was taken in a meeting between the DFCCIL services to provide free internet connectivity. Only and the NCR zone recently. Both the parties studied the halt stations where passengers are far and few in a detailed review of every aspect for the targeted between, will not have this facility.” project completion. Besides the targets, coordination issues among various executing agencies were also As per the system, the user will be automatically examined and finalised. directed to the RailWire homepage, where they will have to enter their mobile number to get the OTP, which According to a statement released by DFCCIL, the would be sent thereafter. Once the OTP authentication DFC corridor will not only help the NCR zone run is done, they can use the free WiFi network at a speed passenger train services efficiently with enhanced of 50 Mbps for up to 30 minutes per day. punctuality but will also ensure the availability of more time for the railway track and other asset maintenance. 4 Hence, this will enhance the overall safety in all train The letter said that the railways will consult trade operations across the network. Additionally, it will unions while finalising the contours of inviting private