ULMA Construction’s Post

SILVERTOWN TUNNEL CONNECTIONS COMPLETED Riverlinx CJV has completed construction works for the connections between the open cut approaches and the bored section of the Silvertown Tunnel. The final transition section of the tunnel was cast in Silvertown on April 11, completing the work to connect the northbound and southbound tunnel structures from the Silvertown portal to the Greenwich portal. A complete transformation of the tunnel shape was needed to connect the circular TBM-constructed tunnel to the in situ concrete arch-shaped cut and cover tunnels. To construct the four transitions, a self-propelled, self-erecting formwork was used, nicknamed “The Crab”. This 70-tonne tracked structure was moved into position and folded out to create the unique shape using hydraulic rams. The Crab then acted as a temporary structure for the installation of steel reinforcement before concrete was placed and allowed to cure. Once the concrete had cured sufficiently to be self-supporting, the machine folded the shutters inward for transport through the bored tunnel to the next transition location. The final of eight cross-passages is now ready for fit-out Read more online: https://lnkd.in/eU9R7shs Follow the British Tunnelling Society for the latest insight on tunnel-related matters To learn about the benefits of joining the British Tunnelling Society click here: https://bit.ly/3r0MPoU #BritishTunnellingSociety #civilengineering #undergroundconstruction #tunnelling

Precast beam decks are generally used for short span bridges ranging between 5m to 50m – these may be railway or motorway bridges. Standard inverted tee beams or M-beams are chosen and positioned by crane. Where precast beams are considered for a motorway bridge construction, the bridge cross-section for a typical carriageway will generally consist of four beams. Erection time of such bridge should have a rate of construction of four beams per day. A cast-in-situ slab top deck is normally used with an expected rate of construction of one span a week.

Tunnelling Solutions a Gamuda Berhad business kicking goals in Sydney Metro Great to have this internal capability

𝗖𝗼𝗻𝗰𝗿𝗲𝘁𝗲 𝗣𝘂𝗺𝗽 𝗧𝗿𝘂𝗰𝗸 🚛 A concrete pump truck is a vehicle equipped with a powerful pump and a long, articulated arm (boom) used to deliver concrete from the mixer to the exact location where it's needed on a construction site. This equipment is especially useful for pouring concrete in hard-to-reach areas, such as high-rise buildings, large slabs, or foundations. The pump ensures a continuous flow of concrete, improving efficiency and reducing the labor required compared to traditional methods. Concrete pump trucks are essential for large-scale construction projects where precision and speed are crucial. #civilengineering #StructuralEngineering #Construction #Infrastructure #ConcreteConstruction #UrbanPlanning #BuildingDesign

Check out yet another helpful purpose for Allan Block systems.

"Bridging the Future: Swift and Strong with Precast Segmental Box Girders!" Launching precast segmental box girders involves assembling pre-fabricated segments to form a bridge deck. These segments are manufactured off-site, transported to the construction site, and lifted into place using cranes or launching gantries. Each segment is precisely positioned and connected using post-tensioning tendons to ensure structural integrity. This method offers numerous advantages, including faster construction times, improved quality control, and reduced on-site labor. It is particularly beneficial for projects with challenging site conditions or tight construction schedules. Precast segmental box girders are commonly used in highway bridges, viaducts, and overpasses, providing a durable and efficient solution for modern infrastructure projects. video rights : Respective owners DM for removal/credits #precast #boxgirder #launching #bridge #civilengineering #construction #civilconstruction #bridgedesign #engenharia #engenhariacivil

Fiberglass geogrid is knitted by glass fiber filaments and coated with bitumen to providea good bond with the asphalt layers,can strengthen the asphalt layer,extend the service life of pavement layers and decrease the occurrence rate of reflective cracking under cyclic traffic load. ◆Features 1.High tensile strength in warp and weft directions. 2.Low elongation. 3.High tensile modulus. ◆Application Fiberglass geogrid is used to strengthen the soft land,such as airport,road,highway,and softland loading capacity.

"Bridging the Future: Swift and Strong with Precast Segmental Box Girders!" Launching precast segmental box girders involves assembling pre-fabricated segments to form a bridge deck. These segments are manufactured off-site, transported to the construction site, and lifted into place using cranes or launching gantries. Each segment is precisely positioned and connected using post-tensioning tendons to ensure structural integrity. This method offers numerous advantages, including faster construction times, improved quality control, and reduced on-site labor. It is particularly beneficial for projects with challenging site conditions or tight construction schedules. Precast segmental box girders are commonly used in highway bridges, viaducts, and overpasses, providing a durable and efficient solution for modern infrastructure projects. video rights : Respective owners DM for removal/credits #precast #boxgirder #launching #bridge #civilengineering #construction #civilconstruction #bridgedesign #engenharia #engenhariacivil

Geosynthetic Reinforced Soil – Integrated Bridge System (GRS-IBS) is being used to help solve the growing national demand to replace small, single-span bridges. The Federal Highway Administration (FHWA) has been pushing this design and construction method for over 10 years. GRS-IBS bridges provide a low-cost and durable solution that also requires less construction time. All the advantages Hamilton County Highway Department were looking for considering they had four bridge structures that needed to be replaced. Since the county was funding the project they were looking for the best way to remove and reinstall. The first bridge project they wanted to design was an 11-ft high by 24-ft wide (3.4 x 7.3 m) wood piled bridge structure that needed replacing. Check out the Full Case Study here. ➡️

Custom drums. They have so many applications for concrete and can be made in a variety of different shapes and sizes. But what does the process look like, and how do things work start to finish? Here's a quick look at how customer PCiRoads went through the process: The Challenge: Minneapolis is booming with growth, but its century-old storm drain system was feeling the strain. With cracks and breaks, it needed a major overhaul to keep up with the city's hustle and bustle. The Search: PCiRoads 30-person crew was tasked with installing about 4,200 feet of new tunnel with a total of around 15,000 cubic yards of new concrete. Estimator and project manager, Nap Scott, knew the amount of concrete involved and the complexity of working far below the streets of downtown would require a unique solution. Knowing a stock solution wouldn't cut it, Mike Clover, PCiRoads concrete superintendent, searched for a more user-friendly, efficient method to shape the concrete. Innovation at Work: Clover reached out to us and laid out their required specs — a drum with a 13-inch drop for the tunnel floor that could only extend out a few inches because of the tunnel walls. They also would require a way to finish the concrete after the custom drum shaped it. Drawings of the custom system were sent, and once approved we built the equipment. The Results: After testing the equipment and making sure it could be safely transferred underground, the real job began. With our custom equipment and PCi's skilled team, workers were able to complete the job quicker, with higher efficiency and a healthier environment. Join the Concrete Revolution: With the multitude of possibilities custom drums provide, the future of construction is brighter than ever. Let's keep building, one project at a time! If you think a custom drum solution could help you and your team, contact us today at 785-467-3132 or info@curbroller.com. #curbroller #concreteinnovation #customdrum