德克斯达集团|可靠的连接

Ahmedabad Gandhinagar metro line India – Phase I

Ahmedabad Gandhinagar metro line India – Phase I

The Ahmedabad-Gandhinagar Metro Rail Project is a new mass-transit rapid transit system in Gujarat, West India. The project is being implemented by Metro Link Express for Gandhinagar and Ahmedabad (MEGA) and aims to meet the city’s growing population while providing commuters with a better transport system.
The total length of the metro’s first phase is 39.3km, with 33.3km of elevated section and 6 kilometers underground. The metro will connect suburbs in Ahmedabad along east-west and north-south axis, and the route will also be extended to Gandhinagar in Phase-2.
The construction of the first phase, comprising 32 stations connecting the four corners of the city, has been in progress since 2015. Being expected to operate in 2020, the first trial run of the metro line is scheduled for January 2019.

Steel sonic logging tubes for concrete integrity tests

For the first phase of the Ahmedabad metro, 右旋糖苷 was involved in supplying its CSL solution 索尼泰克 for the 6-kilometer long viaduct. 索尼泰克 is Dextra’s sonic logging tube system for Cross-hole sonic logging tests. CSL method allows the contractors to verify the concrete integrity in D-walls, bored piles, drilled shafts, barrettes or in concrete piles. 索尼泰克 helps facilitate the assembly and installation of long tubes in reinforcing cages by its Instant Connection characteristic. Thanks to its large bell-mouth, the tubes can be easily connected seamlessly.

Bangkok MRT Pink Line & Yellow Line

曼谷地铁粉线和黄线

The MRT Pink Line & Yellow Line are elevated mass rapid transit line being built and operated by the BSR joint venture (BTS Group Holdings, Sino-Thai Engineering and Construction STEC, and Ratch Group RATCH) in Bangkok, Samut Prakan, and Nonthaburi Provinces, Thailand.

The MRT Pink Line monorail will be 34.5 kilometers long and have 30 stations. It will connect the northern districts of Bangkok and Nonthaburi with 5 mass transit lines that run along a key east-west transportation route.

The 30.4-kilometer Yellow Line will have 23 stations and will connect 6 other mass transit lines. It will provide mass transit along the heavily congested Lat Phrao road and Srinagarindra road corridors.

右旋糖苷 was involved in these 2 MRT line extension projects by providing 巴特克 splicing systems. More than 440,000 pieces of the couplers, size 16-32mm, were installed inside connecting slabs to connect guideway beams.

In addition, the contractor chose Dextra’s 钢筋锚固板 as an alternative to rebar hooks to avoid steel congestion in severely reinforced areas such as beam-column connections. Around 530,000 small 有头条 were supplied to the construction sites.

The MRT Pink Line is expected to be operational by June 2022, with the Yellow Line following a year later.

印度乌德姆普尔-斯利那加-巴拉马拉铁路 (USBRL)

印度乌德姆普尔-斯利那加-巴拉马拉铁路 (USBRL)

乌丹布尔-斯利那加-巴拉穆拉铁路线(USBRL)是印度铁路公司在喜马拉雅山脉的一个大型基础设施项目,旨在提供通往查谟和克什米尔山谷的铁路连接。该项目旨在使印度全国各地都能进入铁路网络,并将遥远地区与印度其他地区连接起来,以响应总理到 2022 年建设新印度的愿景。

该项目分为三个部分——25公里的Udhampur-Katra轨道、129公里的Katra-Qazigund轨道和118公里的Qazigund-Baramulla轨道。部分线路已经竣工并投入运营。

For this massive project, Dextra supplied 3,000 sets of Self-Drilling Rock Bolts to stabilize loose rock mass after excavation.
自钻式岩石锚杆 is a bolting solution for unstable ground conditions and fractured rock formations. The loosening of the rock strata is prevented by drilling a hole in the rock, placing standard sacrificial drill bit and a hollow bar (made of steel or FRP): cementitious grout is then injected into the hollow bar.

随着大型基础设施项目接近完工,USBRL将连接查谟和克什米尔,为印度交通系统翻开新的一页。

安达臣路采石场

安德森路采石场 – 地下通道

The Anderson Road Underpass is part of a larger land rehabilitation project taking place at the Anderson Road Quarry. The vast land of the quarry, located North East of Kowloon, will ultimately be used to house as many as 25,000 people over a 12 hectare area.

采石场的新时代

After more than 60 years of supplying aggregate, asphalt, stone and concrete to infrastructure projects, the vast land of the quarry will be transformed in Hong Kong’s newest residential and commercial area. The ARQ will be capable to accommodate 25,000 people over a 12 hectare area.

Dextra’s steel rock bolts for ground engineering and 隧道

The Anderson Road Underpass is a tunnel project lead by the joint venture of contractors Chun Wo, STEC and Vasteam JV, supervised by consulting firm Aurecon.
For this project, Dextra supplied to subcontractor Shun Yue Engineering Company Ltd. steel rock bolts used for the tunnel roof support. More than 1,500 steel rock dowels, along with 100nos lattice girders and 500 umbrella piles were successfully installed on this project.

Dextra 因其广泛的应用而被选用于该项目 ground engineering and 隧道 在香港拥有丰富的经验,过去20年曾在香港供应过众多大型道路和地铁隧道项目。
有关我们在香港和澳门的地面工程解决方案的更多信息,请联系我们 香港办事处.

地铁橙线(泰国文化中心-敏武里)

地铁橙线(泰国文化中心-敏武里)

Bangkok’s MRT Orange Line is one of the planned rapid transit lines of the Mass Rapid Transit Authority of Thailand (MRTA). The main purpose of this 39.5-kilometer railway line is to improve the connection between western, central and eastern parts of Bangkok, and consequently ease the Thai capital’s traffic congestion. This project is also part of Thailand’s plan to stimulate the national economy and improve the infrastructure.
地铁橙线分为两段:从 Bang Khun Non 到泰国文化中心,以及从泰国文化中心到敏武里府,共有 22 个地铁站和 7 个高架站。

右旋糖苷 玻璃纤维增强聚合物 软眼 for tunnel construction

For the Thailand Cultural Centre – Min Buri section, the contractor Joint-Venture of Italian-Thai Development and CKST opted for more than 40 units of Dextra’s turnkey solution for 隧道 纤维增强聚合物 Soft-Eye.
Being well-known for its unique cut-ability technology, Glass Fiber Reinforced Polymer (玻璃纤维增强聚合物) Soft-eyes facilitates break-ins and break-outs of the Tunnel Boring Machine (TBM). This is in fact the best alternative to conventional steel 钢筋/增强筋 – which would require mobilization of additional manpower and equipment.

右旋糖苷 索尼泰克 for Crosshole Sonic Logging (CSL) tests

In order to verify the integrity of concrete in deep foundations, Italian-Thai Development, CKST JV and Unique Engineering have also chosen Dextra’s cross-hole sonic logging tubes – 索尼泰克. These CSL tubes are available in several diameters, and have been specifically designed for easy and fast handling to accelerate construction speed. Over 30,000 tubes have been delivered to the project as of March 2022.

Complete rebar splicing solutions applied for the metro’s D-walls

To optimize the 钢筋/增强筋 of the Diaphragm Walls (D-Walls), 巴特克, one of Dextra’s mechanical 钢筋连接 systems, was installed. Thanks to its easy-to-install characteristic, 巴特克 helps accelerate the projects schedule and reduce inventory as the standard coupler can also be used for Position splices. More than a million of 巴特克 couplers have been delivered to the site.

Moreover, around 7,000 有头条 were applied at the end of the 钢筋/增强筋 bar as an alternative to hooks in congested areas of the structure.

有关我们在泰国提供的解决方案的更多信息,请联系我们 曼谷办事处.

High Speed 2 (HS2), United Kingdom

High Speed 2 (HS2), United Kingdom

The UK’s ambitious High Speed 2 (HS2) project, encompassing 140 miles of track, four state-of-the-art stations, two depots, 32 miles of tunnel, and 130 bridges, is set to redefine sustainable travel and foster economic regeneration for generations to come. 右旋糖苷 is proud to play a vital role in this transformative endeavor by supplying 格瑞普泰克 couplers to various HS2 sites, ensuring the structural integrity and resilience of this extensive rail infrastructure.

Picture: Victoria Road Crossover Box Site

Our 格瑞普泰克 couplers, known for their high-performance rebar connections, have been deployed across numerous key sites, including the Long Itchington Wood Tunnel, Old Oak Common Station, Victoria Road Crossover Box, Colne Valley Viaduct, Chiltern Tunnel and Ventilation Shafts, Thame Valley Viaduct, Curzon Street Viaducts, Edgcote Viaduct,  Canterbury Road Works Headhouse and Ventilation Shaft, and many more. The couplers have been integral in connecting rebars for primary collars, piers, base slabs, crown beams, buttresses, and deck segments, ensuring robust and reliable structural connections.

Picture: Chiltern Tunnel and Ventilation Shafts Site

Spotlight on Long Itchington Wood Tunnel: A Legacy of Environmental Responsibility

One of the largest construction sites for HS2 is at Long Itchington Wood, where a 1-mile twin bore tunnel is being built. The tunnel serves a critical purpose: preserving the ancient woodland of Long Itchington by diverting the railway underground. To facilitate the launch of the tunnel boring machine (TBM), a massive excavation at the north portal site was necessary. This involved the removal of approximately 250,000 cubic meters of material, which was then repurposed to form environmental embankments along the mainline.

右旋糖苷 supplied nearly 20,000 格瑞普泰克 standard and position couplers in diameters ranging from 12mm to 40mm for the tunnel construction. These couplers were used in the 地下连续墙, pile caps, and portals, ensuring the durability of connections in the deep and challenging excavation environment. The 格瑞普泰克 system, comprising one male and one female sleeve extruded onto the rebar, facilitated efficient and secure rebar connections that are essential for large-scale projects like HS2.

这 格瑞普泰克 母套筒 were initially installed at the top of the diaphragm wall. Position assembly—a technique that accommodates non-rotatable rebars—was employed to connect the 母套筒 to male sleeves on L-shaped bars within the roof slab. This 钢筋/增强筋 approach was extended to pile caps and later stages of construction, where the couplers reinforced the crown beam by connecting with bent bars through lap length.

Picture: Long Itchington Wood Tunnel Site

Empowering Infrastructure with Technological Innovation

As HS2 progresses, Dextra’s 格瑞普泰克 couplers continue to enable rapid and reliable rebar connections, supporting the project’s commitment to quality, safety, and sustainability. By contributing advanced construction solutions, we are proud to be part of HS2’s legacy of environmentally responsible travel, economic regeneration, and technological innovation. Our role in HS2 reflects Dextra’s dedication to advancing infrastructure through high-performance products that meet the needs of complex and large-scale projects.

这 High Speed 2 project is poised to transform the UK’s transportation landscape, and with Dextra’s 格瑞普泰克 couplers in place, the rail network is set to endure and thrive for generations to come.

开罗单轨铁路

开罗单轨铁路

开罗单轨铁路是埃及开罗目前正在建设的一条两线单轨快速交通系统。项目完成后,这两条线路将提供从新行政首都和十月六日城到开罗大都市区的第一条公共交通连接。

新行政城和东开罗之间的54公里线路将需要60分钟,而10月6日城和吉萨之间的42公里线路将需要42分钟。

右旋糖苷 supplied more than 300,000 巴特克 standard and bridging couplers for the connection of reinforcement bars. 巴特克 is simple to install and does not require professional skilled labor, which reduces labor on the job site, formwork costs, and increases job site safety.

Around 400,000 巴特克 有头条 were also installed as a replacement for 弯钩 in concrete members and connections.

Moreover, the project used 联合技术公司 bolted couplers in repair works for the connection of two rebars which have not or cannot be threaded.

该系统的第一阶段将于 2022 年向公众开放,第二阶段将于 2023 年向公众开放。

福雷斯特菲尔德机场快线

福雷斯特菲尔德机场快线

The Forrestfield Airport Link is a rail infrastructure project lolcated in Perth, Western Australia. The 8.5km line will connect the existing Midland Line to Perth International Airport and further to the eastern suburbs. The project features two twin-tunnels bored with Tunnel Boring Machines (TBMs) which move up to 26 meter underneath the bed of Swan river, highways and Perth Airport, adding three new stations to the city’s transportation network: Belmont, Airport Central and Forrestfield.

Forrestfield metro plan

For the tunnel boring packages, 右旋糖苷 supplied a total of 10 玻璃纤维增强聚合物 软眼 between 2016 and 2017 (two for Airport Central Station, two in Abernethy, four in Belmont and two in Bayswater) to the contractor JV of Salini Impregilo and NRW Salini Impregilo. 软眼 are rebar cages made mostly of Glass-Fiber Reinforced Polymer (GRFP) bars and some steel rebar. 软眼 can be cut by the TBMs and allow faster equipment breakthrough, saving precious time while avoiding to damage the TBM heads.

右旋糖苷 also supplied a total of 65,000 格瑞普泰克 connections for the station works. 格瑞普泰克 is distributed in Western Australia by Dextra’s partner InfraBuild Construction Services. They offer the complete service to the contractor: Cutting the rebar, preparing the bar ends with 格瑞普泰克 sleeves and bending them for final installation on site. This allows the contractor to achieve faster cycle times in rebar connection on site .

索尼泰克, Dextra’s steel tubes for Crosshole Sonic Logging tests (to check concrete integrity in bored piles) were also supplied.

福雷斯特菲尔德机场线将于 2022 年投入运营。

For more information about our solutions in Australia, please consult our Bangkok office

勒克瑙地铁 – 一期

勒克瑙地铁 – 一期

The Lucknow Metro project is built to serve the growing population of Uttar Pradesh, North India, as well as to serve the areas that are not connected by the existing rail system. The 35km rail system comprises 22 stations, of which 19 will be elevated.

The first phase of the project consists construction of 2 rail lines (North- South and East-West corridor), connecting the four corners of Lucknow by running through the heart of the city. Being implemented by Lucknow Metro Rail Corporation (LMRC), the Phase 1 comprises the construction of 22.8km long North-South corridor.

The priority section is the 8.5 kilometers linking Transport Nagar to Charbagh.
勒克瑙地铁一旦投入运营,将有助于缓解城市交通,并减少通勤者的出行时间。

布鲁塞尔地铁 3 号线

布鲁塞尔地铁 3 号线

布鲁塞尔地铁是一个快速交通系统,服务于比利时首都布鲁塞尔的大部分地区。它由4条常规地铁线路和3条地铁预备线路组成。

Line 3 is a tram line that runs through the city center from Churchill in the south to Esplanade in the north, using the North-South Axis tunnel. The total route will be 10.3km long.

An 150m long new tunnel was dug underneath the Brussels North railway station to connect two existing underground tunnels. It was an important component of the new metro link.

Dextra supplied 索尼泰克, a tube solution that facilitates the integrity testing of foundations using the CSL testing method, to the construction site of Line 3. 13 kilometers of the tubes were installed in the 18m long pile cages.

索尼泰克 system has been designed with the sole purpose of being easy to assemble and install in reinforcement cages.