Page 16 - CO April 2017 Full Issue

COVER STORY Powered by METRO RUSH Colaba-Bandra-Speez Metro corridor. Once constructed, it will be inroads into this segment. According to Rajeev Kumar, CEO, Friends Equipment, and PAN the frst underground Metro corridor in Mumbai and the second India distributor for China Railway Construction in India afer Kolkata, to have an underwater metro rail corridor. Heavy Industry Co., (CRCHI) & China Railway Te 1.2km patch of the rail corridor will go from under the Mithi river between Bandra Kurla Complex and Dharavi stations. Tis Construction Corporation (CRCC). “China Railway Construction Corporation (CRCC), project possesses a number of challenges including hard rock, high water table and tunneling in has constructed over 1,209 km length of tunnel congested areas. According to Ashwini Bhide, in 2016 alone and CRCHI TBM has been used for MD, Mumbai Metro Rail Corporation,Tunnel 27 cities’ metro lines in China and in Iran, Taiwan Boring Machines (TBM) will be lowered at a and Russia. In India, we are focusing on all metro jobs including little distance from the river with the help of a Delhi metro, Bangalore metro and Ahmedabad metro, Nagpur heavy-duty crane through shafs and will drill metro etc.” twin tunnels below the riverbed. Te New Austrian Tunneling CRCHI is actively promoting the use of their Slurry Pressure Method (NATM) will be used for the frst time underwater to Balance machines. Compared with that of Earth Pressure Balance construct two tunnels for the stabling line and connecting it to the Shields (EPB machines), the slurry control process of SPB is more main line. Santosh Rai, Head – Transport Sales, stable and gives more concise control performance. Hindustan Construction Company (HCC) “Te SPB machine is especially suitable for most large tunnel says, “In Mumbai Metro we are using dual mode, projects which go through rivers and lakes and have high demand double shield rock machines which are able to deal for excavation face stability with high water content and strong with both the rock environment as well as the soil permeable layer.” environment (EPB). Tis latest TBM allows you to Considering these situations, CRCHI’s dual-mode shield machine probe 50-100 meters ahead of the cutter head which has the technical features of both Earth Pressure Balance Shields gives you a lot of idea about the geology the TBM is going to face (EPB) and SPB to better control excavation face pressure and to while drilling ahead.” keep the ground stable while ensuring tunnelling efciency. In silty HCC is now also using technology to conduct pre-construction clay layer the shield machine switches to EPB mode while in sand building conditions survey and soil analysis, as well as monitor the layer it switches to SPB mode. real-time progress of the tunnel boring machines. Te company While Sika India Pvt. Ltd a wholly owned subsidiary of Sika AG was involved in building India’s frst metro project - the Kolkata ofers an extensive range of underground tunnel excavation solutions Metro and is actively involved in the development of Phase I, Phase including primary excavation support like anchor cementitious II and Phase III of the Delhi Metro. “Currently we are executing and Epoxy mortar, primary drainage system for excavated tunnels, three projects worth `2000 crores in Phase III of Delhi Metro.”, Concrete admixtures for sprayed concrete application, water Rai added. proofing solutions, High performance injection systems, Soil Says I. P. Gautam, MD, MEGA Company Ltd., stabilisation Foams, Backfll grout stabilizer and accelerators, “Modern construction technologies are being used in Polymers and Admixtures for all types of concrete Ahmedabad Metro Rail Project like, TBM machine as well as main Drive and tail seal sealant products. for underground construction work, rotatory rigs “We have launched Curing compounds based on etc. Various sofware like primavera Midas, Bentley new technology and our focus areas are Metro rail track, SAP are being used in the Ahmedabad projects, road projects and residential projects.” Metro rail Project.” says, Ibrahim Shaikh Sr. Product Manager, While the Robbins Company recently launched their Crossover Sika India Pvt. Ltd. Series of TBMs which can work in combination of mixed soils and Another company who is actively making its presence felt is rock respectively. Chowgule Construction Chemicals, aleading company in the Other types of their Crossover machines include XSE (Crossover construction and waterproofng chemicals space. Te company between Slurry/EPB) and the XRS (Crossover between Rock/ has already supplied crystalline system for water tanks, anti- Slurry) TBMs. carbonation coating for the concourse area, PU injections for Te company credited with manufacturing the world’s frst rock overhead ceilings and deck slab waterproofng systems for Delhi tunnel boring machine (TBM) as well as inventing the Main Beam Metro Rail Corporation (DMRC) projects including Ishwar Nagar, and Double Shield TBMs,sees a huge potential in the transport, Okhla Vihar, Jamia Nagar, Jasola Vihar, Kalindi Kunj, Shankar sector. Vihar and Sadar Bazar Delhi Cantt. “Te company has already supplied TBM’s in “We are currently providing products in the third phase of DMRC Delhi Metro, Jaipur Metro, Chennai Metro and we soon plan to be part of the fourth phase Package UAA-02. Apart from these projects as well. We are also venturing into MMRC Robbins has also supplied 4 Nos of 10m diameter and MMRDA projects and currently pitching and 1Nos of 6.25m Hard Rock TBM’s in India on our solutions for the second phase (Charkop to water transfer projects.”,says, Kapil Bhati, MD, Dahisar) of MMRDA and the frst phase (Colaba Robbins India. to Seepz) of MMRC.”, says Ewart Lazarus, MD, Another company Friends Equipment is aiming to make signifcant Chowgule Construction Chemicals. 16 construction opportunities|aPrIL 2017