Latest news with #BoringMachine
Business Wire
28-07-2025
- Business
- Business Wire
W.A. Rasic Construction Awarded Major Subcontract on Dragados' $630M Effluent Outfall Tunnel Project in Los Angeles County
CARSON, Calif.--(BUSINESS WIRE)-- W.A. Rasic Construction, a leading California-based utility and heavy civil contractor, has been selected as a key subcontractor by Dragados USA for the Joint Water Pollution Control Plant (JWPCP) Effluent Outfall Tunnel—one of the most technically advanced and seismically resilient infrastructure projects currently underway in the United States. The $630 million project, commissioned by the Los Angeles County Sanitation Districts (Sanitation Districts), aims to significantly upgrade the region's wastewater discharge capabilities. With a planned completion in October 2026, the tunnel will span from the JWPCP Shaft Site in Carson to Royal Palms Beach in Rancho Palos Verdes, traveling as deep as 450 feet below ground. As part of its subcontract, W.A. Rasic Construction will lead the installation of massive 144-inch (12-foot) diameter pipeline segments—critical to conveying treated effluent through the new tunnel. The pipe system will connect the existing JWPCP force main to the new tunnel shaft, facilitating long-term improvements in capacity, environmental protection, and seismic resilience. W.A. Rasic Construction expressed pride in contributing its expertise to the landmark project, emphasizing the team's commitment to completing the complex scope with the highest safety, precision, and innovation standards. Designed to meet the evolving needs of a growing population and the increasing severity of climate-driven storm events, the new outfall tunnel will provide redundancy for the region's aging 1937 and 1958-era tunnels. It also marks the first use of a post-tensioned concrete segmental lining system in North America—an advanced engineering approach previously used only a few times globally. Tunneling will be executed with a single-pass Tunnel Boring Machine (TBM), navigating soft ground and hard rock conditions, including sections passing through the Palos Verdes Fault Zone. The alignment's varying depth and ground pressures—ranging from 1 to 9 bar—make it one of the most technically demanding tunneling operations in North America. The tunnel project is a critical component of Southern California's long-term infrastructure resilience strategy. The project directly supports the region's climate adaptation goals and environmental stewardship mandates by improving outfall capacity and seismic durability. W.A. Rasic Construction's expertise in large-diameter pipeline installation and deep excavation makes the firm uniquely suited to handle the technical complexities of this assignment. The company's work will also generate skilled trade jobs throughout the Los Angeles area, contributing to local economic growth while reinforcing the West Coast's leadership in forward-looking utility infrastructure. About W.A. Rasic Construction W.A. Rasic Construction Company, founded in 1978 by Walter A. Rasic, Sr., is a leading utility contractor specializing in underground construction, water, wastewater, power, communication, gas & oil, and heavy civil infrastructure. With over 45 years of experience, W.A. Rasic Construction is trusted by both public agencies and private sector clients across the Western United States for its commitment to quality and long-term partnerships, building a reputation for quality, safety, and reliability.
GMA Network
16-07-2025
- Business
- GMA Network
Marcos hopeful for Metro Manila Subway's operations by 2028
President Ferdinand ''Bongbong'' Marcos Jr. on Wednesday expressed hope that the Metro Manila Subway Project could be partially operational by 2028. Marcos made the remark during the inspection of the Camp Aguinaldo Station of the Metro Manila Subway Project. ''Sana matapos natin ito hanggang sa Valenzuela, baka matapos natin ito '28. Baka puwede nang in-inaugurate sa 2028. Basta tingnan natin,'' Marcos said. (I hope we can finish until Valenzuela by 2028. Maybe we can inaugurate this by 2028. Let's see.) ''Lahat naman ay nag-a-agree na kailangan bilisan nang mabuti at nang husto dahil ang ating mga commuter... ay para naman maging mas maginhawa ang kanilang pag-commute,'' he added. (Everyone agrees that we need to hasten this to bring comfort to our commuters.) The first Tunnel Boring Machine (TBM) CP103 was launched from Camp Aguinaldo Station toward Ortigas Station following a tunnel alignment under Barangay White Plains, Corinthian Properties, and Meralco Compound. 17 stations As of 30 June, the TBM has advanced 281.74 meters from the launching shaft and has reached the Camp Aguinaldo–White Plains boundary. The TBM is expected to reach Corinthian Properties by the last quarter of 2025. Upon its completion, the MMSP will have a total of 17 stations and a 30.34-hectare depot where the Philippine Railway Institute is located. The project involves the construction of a 33-kilometer railway line that will connect Valenzuela City to Pasay City, with a spur line to Ninoy Aquino International Airport (NAIA) Terminal 3. The MMSP's 17 stations are: Valenzuela where the depot will be located, Quirino Highway, Tandang Sora, North Avenue, Quezon Avenue, East Avenue, Anonas, Katipunan (Camp Aguinaldo), Ortigas Avenue, Shaw Boulevard, Kalayaan Avenue, Bonifacio Global City, Lawton East, Senate-DepEd, NAIA Terminal 3, FTI, and Bicutan. The MMSP is also envisioned to be interconnected with other rail systems: the Light Rail Transit Line 1 (LRT1), the Metro Rail Transit Line 3 (MRT3), and the Metro Rail Transit-Line 7 (MRT7) through the Common Station; the Light Rail Transit-Line 2 (LRT2) at the Anonas Station; and a physical run through into the North-South Commuter Railway Extension (NSCR-Ex) at the FTI and Bicutan Stations. —VAL, GMA Integrated News
India Gazette
30-06-2025
- General
- India Gazette
"Safar Karo, Shoot Nahi": Delhi Metro urges commuters to avoid making reels, cites safety concerns
New Delhi [India], June 30 (ANI): The Delhi Metro Rail Corporation (DMRC) on Monday appealed to commuters to refrain from making social media reels inside metro premises, warning that such activities not only violate rules but also pose safety risks and inconvenience fellow passengers. 'Making reels in the metro is not just about breaking rules, it's also about disrupting others' journeys. Let's follow Delhi Metro's rules to make our travel safe,' DMRC posted on X. The advisory was issued on World Social Media Day as part of a broader awareness campaign highlighting the growing influence of social media. The DMRC's post was captioned -- 'Safar Karo, Shoot Nahi.' Earlier last week, the Delhi Metro Rail Corporation (DMRC) achieved a significant milestone in the ongoing Phase 4 expansion by completing a major underground tunnelling task between Kishangarh and Vasant Kunj stations on the Tughlakabad-Aerocity corridor of the Golden Line. The breakthrough was achieved when a Tunnel Boring Machine (TBM) completed its journey this morning at Vasant Kunj Metro Station, having constructed a 1,550-metre-long tunnel using a 91-metre-long TBM. The DMRC took to social media to announce this development and posted, 'DMRC Completes another Major Tunnelling Milestone on Phase 4 Golden Line; Breakthrough at Vasant Kunj Metro Station. The Delhi Metro Rail Corporation (DMRC) today achieved a major construction milestone in Phase 4 with the completion of an underground tunnel between Kishangarh and Vasant Kunj Station on the Tughlakabad-Aerocity corridor.' According to the DMRC, this new tunnel has been constructed at an average depth of approximately 22.86 meters (minimum depth 15.48 meters and maximum depth 30.25 meters). About 1105 rings have been installed in the tunnel, with an inner diameter of 5.8 meters. The tunnel has been constructed using the proven EPBM (Earth Pressure Balancing Method) technology, featuring a concrete lining composed of precast tunnel rings. These tunnel rings were cast at a fully mechanised casting yard set up at Mundka. The concrete segments were cured with a steam curing system to achieve early strength. As part of the Phase 4 work approved so far, 40.109 kilometres of underground lines are being constructed. The Aerocity-Tughlakabad corridor has underground sections totalling 19.343 kilometres. (ANI)
India Gazette
25-06-2025
- Business
- India Gazette
DMRC achieves major tunnelling breakthrough on Phase 4 Golden Line
New Delhi [India], June 25 (ANI): The Delhi Metro Rail Corporation (DMRC) has achieved a significant milestone in the ongoing Phase 4 expansion by completing a major underground tunnelling task between Kishangarh and Vasant Kunj stations on the Tughlakabad-Aerocity corridor of the Golden Line. The breakthrough was achieved when a Tunnel Boring Machine (TBM) completed its journey this morning at Vasant Kunj Metro Station after constructing a 1,550-metre-long tunnel, using a 91-metre-long TBM. The DMRC took to social media to announce about this development. In a social media post on X, it stated, 'DMRC Completes another Major Tunnelling Milestone on Phase 4 Golden Line; Breakthrough at Vasant Kunj Metro Station. The Delhi Metro Rail Corporation (DMRC) today achieved a major construction milestone in Phase 4 with the completion of an underground tunnel between Kishangarh and Vasant Kunj Station on the Tughlakabad-Aerocity corridor.' 'A Tunnel Boring Machine (TBM) broke through this morning at Vasant Kunj Station after boring a 1550 meter-long tunnel. This tunnel breakthrough was achieved using a mammoth 91-metre-long TBM. Two parallel circular tunnels for up and down movement are being constructed on this stretch as part of the Aerocity-Tughlakabad corridor. The breakthrough on the other parallel tunnel was achieved on 06.03.2025,' it added. According to the DMRC, this new tunnel has been constructed at an average depth of approximately 22.86 meters (min depth 15.48 mtr & max. 30.25). About 1105 rings have been installed in the tunnel, with an inner diameter of 5.8 meters. The tunnel has been built using the proven technology of EPBM (Earth Pressure Balancing Method) with a concrete lining made of precast tunnel rings. These tunnel rings were cast at a fully mechanized casting yard set up at Mundka. The concrete segments were cured with a steam curing system to achieve early strength. All necessary safety precautions were taken during the construction of the tunnel below the existing structures. Ground movements were monitored with highly sensitive instruments fixed on nearby structures, ensuring that there was no settlement anywhere, the DMRC stated. As part of the Phase 4 work approved so far, 40.109 kilometres of underground lines are being constructed. The Aerocity-Tughlakabad corridor has underground sections totalling 19.343 kilometres. A TBM is a machine used to excavate tunnels with a circular cross-section through various soil and rock strata. They can be designed to bore through anything from hard rock to sand. TBMs have revolutionized tunnelling work worldwide, enabling tunnels to be bored without disturbing buildings and other surface structures. TBMs are particularly useful for underground tunnelling work in congested urban areas. DMRC has been using TBMs for its tunneling work since Phase 1. In Phase 3, when approximately 50 kilometres of underground sections were built, about 30 TBMs were deployed in the national capital. (ANI)
Hindustan Times
08-06-2025
- Business
- Hindustan Times
Delhi Metro's Golden Line corridor reaches key tunneling milestone
The Delhi Metro Rail Corporation (DMRC) on Friday completed a significant tunnelling milestone on the Aerocity–Tughlakabad corridor—also known as the Golden Line—after a Tunnel Boring Machine (TBM) broke through at Tughlakabad Railway Colony station. The breakthrough marked the completion of a 792-metre-long underground tunnel stretch excavated from Maa Anandmayee Marg, officials said. The tunnel, built at an average depth of 18 metres, is part of the 19.3-kilometre underground alignment of the corridor, which spans 23.6 kilometres in total. Once complete, it is expected to bolster east-west connectivity in South Delhi and provide a seamless interchange with the Violet Line at Tughlakabad. The event was attended by Delhi's health and transport minister Dr Pankaj Kumar Singh, DMRC managing director Dr Vikas Kumar, and other senior officials. A parallel tunnel for the up and down movement is expected to be completed by July 2026. 'This breakthrough is not just a technical achievement but a symbol of renewed momentum,' said Singh. 'What was once stalled is now moving at full speed. Today's event serves both as an inspection and a celebration. Going forward, we will further accelerate metro expansion and ensure that Delhi's citizens receive the quality infrastructure and services they truly deserve,' minister Singh added. The Aerocity–Tughlakabad stretch forms one of three corridors under construction as part of DMRC's Phase-4 expansion. The other two include the Janakpuri West–RK Ashram extension of the Magenta Line and the Majlis Park–Maujpur extension of the Pink Line, officials said. While the Pink Line extension is expected to be completed by the end of 2025, the Golden Line and Magenta Line corridors are scheduled for completion by mid-2026. Anuj Dayal, principal executive director of corporate communications at DMRC, said that ground movement during excavation was carefully monitored using precision instruments fixed to nearby buildings to avoid any structural disturbances or surface settlement.
