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カテゴリー: プロジェクト

第2回ホーチミン市環境衛生

投稿日: アーティスト: Sir Gwi

第2回ホーチミン市環境衛生

The Second Ho Chi Minh City Environmental Sanitation Project consists of the construction of an interceptor that will convey the wastewater collected from the Nhiêu Lộc-Thị Nghè Canal and District 2 areas of Ho Chi Minh City to a treatment plant.

Dextra has been involved in the construction of the large underground system by supplying 40 Soft-Eyes to assist in the tunnel breakthroughs.

The cuttable Glass Fiber Reinforced Polymer (GFRP) Soft-Eyes were applied to reinforce 21 shafts, allowing penetration by the Tunnel Boring Machine (TBM) without the need to remove steel reinforcement and without the risk of damaging the TBM’s head.

With its completion planned for 2022, wastewater services in HCMC will become considerably more sustainable and will be remembered as the first major step toward alleviating the environmental and sanitation issues of the country.

地下鉄ナーグプール駅、地下鉄ゼロマイル駅

投稿日: アーティスト: Sir Gwi

地下鉄ナーグプール駅、地下鉄ゼロマイル駅

マハーラーシュトラ州ナーグプール市で行われている交通機関/駐車場/商業複合プロジェクトのナーグプール地下鉄ゼロマイル駅。市内を北から南に横断する新しい地下鉄線上にあります。ゼロ マイル ステーションは、商業エリアと 430 台収容の駐車場を備えた 12 階建ての建物を組み合わせた地下鉄駅です。

このプロジェクトでは、デクストラは 2017 年に、掘削エリア周囲の地盤を安定させるためのグラウンド アンカーの供給と設置に参加しました。

Dextra は、革新的な ASTEC (FRP) アクティブ アンカー ソリューションを提供しました (AAA）、一時的な用途の場合、たとえ敷地境界線を超えて伸びていたり、将来のトンネルにぶつかったりしても、プロジェクト終了後に地面に残すことができる特別なタイプのグラウンドアンカーです。

実際、FRP アンカーバーの主な利点の 1 つは、アンカーを従来の掘削装置で完全に切断できることであり、最後に力任せに地面から取り外す必要がある鋼製アンカーである従来の取り外し可能なアンカーの最良の代替品になります。プロジェクトの。

Dextra ASTEC アクティブ アンカーは持ち運びが軽く、作業員が最終的な場所まで運ぶことができます。ドリルで開けられた穴に挿入されると、各アンカーにグラウトが注入され、その後 FRP アンカーに接続された従来の PT ストランドを使用して応力が加えられます。追加のプロジェクト管理が必要であり、耐用年数が終了したアンカーの撤去費用が発生する従来の取り外し可能なアンカーとは異なり、設置後もアンカーを地中に残すことができます。

インドにおける Dextra アンカリング ソリューションの詳細については、弊社までお問い合わせください。 ムンバイ事務所.

Doha Metro Rail – Phase 1

投稿日: アーティスト: Sir Gwi

Doha Metro Rail – Phase 1

Doha Metro Phase 1 is Qatar’s major infrastructure project consisting of three metro lines with a total length of 164 km. The first phase involves the construction of the Red, Green, and Gold lines and their major stations. It is part of the US$36 billion Doha Metro Rail Network Project, aiming to reduce the city’s road traffic congestion while facilitating the connection between Qatar and other Gulf countries.

The required completion period for this project is extremely short, with excavation starting in mid-2013 and operations expected by 2019. Given the project’s constrained timeline, highly innovative solutions are required to complete the building of underground structures in minimal time.

Dextra’s FRP Active Anchors as Temporary Tie-backs in Retaining Walls

Composite materials have been used for over 20 years as temporary reinforcement in concrete structures. In Doha Metro Phase 1, both Dextra’s post-tensioned carbon-FRP (CFRP) Active Anchors and glass-FRP (GFRP) Active Anchors have been used in retaining walls.

When used as temporary tie-backs, CFRP material offers the most advanced technical solution due to its superior tensile strength, creep resistance, and durability, while GFRP Anchors offer a cost-effective solution without technical compromise.

GFRP anchors can advantageously replace steel removable anchors to prevent encroachment on neighboring plots. As a result, GFRP anchors now account for more than 90% of the FRP anchors installed in the region.

For the first phase of the Doha Metro Rail Network project, Dextra has supplied 150 CFRP Active Anchors and 700 GFRP Active Anchors to date.

ASTEC Soft-Eye for Improved TBM Penetration

Dextra’s ASTEC Soft-Eyes is a unique technology using cuttable GFRP reinforcement as a replacement for conventional steel rebars. Since 1996, this solution has become a standard concept in the design of shafts and subway stations.

More than 10 sets of Dextra’s ASTEC Soft-Eyes had been supplied and used in the Doha Metro construction project as of May 2018.

Mexico – Toluca Inter-city train (Tren Interurbano México – Toluca)

投稿日: アーティスト: Sir Gwi

Mexico – Toluca Inter-city train (Tren Interurbano México – Toluca)

o reduce traffic congestion on the Mexico–Toluca highway, as well as to ease connections between both cities, the Secretariat of Communications and Transportation (SCT) is constructing a new 55.7-kilometer rail line in the Mexico City area. Aiming to be an environmentally friendly project, the commuter rail line includes a 4.7-kilometer double-tube tunnel in highly complex terrain and protected natural areas.

The new train will connect Toluca Valley to Mexico City and will provide service to an estimated 270,000 commuters. The line includes six stations: two terminals (Zinacantepec and Observatorio) and four intermediate stations (Cristobal Colon, Metepec, Lerma, and Santa Fe). It will also serve as a backbone for regional and urban transport in the Mexico City area.

Construction began in 2015, and the railway was scheduled for completion in 2019.

Light and Productive Rebar Coupler Solution for the Construction Project

For the reinforcement of the railway’s concrete structures, Dextra supplied more than 100,000 Rolltec splices. The system is a practical and economical alternative to laps. Rolltec is also supported by a single rebar preparation machine, and only one operator is needed to run the machine.

In addition, thanks to the performance of our machines, the thread is prepared in less than 30 seconds!

Moreover, with the Rolltec system, the same type of coupler can be used for both standard and position applications, resulting in optimized project inventory.

For more information about our projects in Latin America, please contact our Panama office.

Cairo Metro – Line 3

投稿日: アーティスト: Sir Gwi

Cairo Metro – Line 3

Since the first 29km segment of the Metro Line 1 opened in 1987, the Cairo Metro project has revolutionized the transit system in the capital.
Currently the whole network comprises 3 operational lines numbered from 1 to 3. Line 3 consists of four phases, and the first segment started operation in 2012.

Three new metro stations were opened as part of the fourth phase of the third line on June 15, 2019, a week before the kickoff of the 2019 African Cup of Nations (AFCON) in Cairo.

Dextra has continuously provided construction solutions since the operation of Line 2 in 2000, delivering since then more than:

-1,400,000 rebar couplers

-7,000 sonic tubes

-60 soft-eyes

Bartec rebar couplers are used for rebar reinforcement of tunnel and station structures on both underground and elevated metro lines as a way to reduce steel congestion and improve tensile connection.

Moreover, the integrity test of the metro foundations using the Cross Sonic Logging (CSL) testing method was facilitated by the usage of SONITEC sonic tubes, designed for easy assembly and installation in reinforcement cages.

Dextra’s ASTEC soft-eyes are made of GFRP rebar to reinforce D-Walls in underground tunnels, which can easily be cut by Tunnel Boring Machine (TBM), resulting in time and money savings.

The project is still ongoing and the fourth line of the Cairo Metro is expected to start operation in 2020.

ホーチミン市地下鉄 – 1 号線 (ホーチミン市地下鉄、ベトナム)

投稿日: アーティスト: Sir Gwi

ホーチミン市地下鉄 – 1 号線 (ホーチミン市地下鉄、ベトナム)

Ho Chi Minh City Metro – Line 1 is the first part of the megacity’s 109-kilometer rail line project undertaken by the Management Authority for Urban Railways (MAUR).

大量交通システムが実現すると、ホーチミン市地域は地下鉄6路線でカバーされ、住民や観光客が市内を簡単かつ便利に通勤できるようになり、都市生活の質が向上します。

プロジェクトの第 1 段階では、ベンタイン市場とスオイティエン公園を結ぶ 19.7 キロメートルの鉄道線の建設が行われます。 １１駅を含む１７．１キロの高架鉄道と、３駅を含む２．６キロの地下線の建設も含まれる。

For the construction of Vietnam’s biggest city, Dextra has been supplying both concrete reinforcement そして bar system solutions.
To reduce steel congestion in heavily reinforced areas, the contractor Shimizu-Maeda Joint Operation opted for Dextra’s end anchors. 頭付きバー is a simple alternative to rebar hooks.

設置はコンパクトアンカープレートを補強バーの先端にねじ込むだけです。このソリューションにより最終的にプロセスが容易になり、コンクリートの品質が向上します。

Grand Paris Express – Line 15

投稿日: アーティスト: Sir Gwi

Grand Paris Express – Line 15

の グラン・パリ・エクスプレス is currently the largest transport project in development in Europe.

The new 200km, 68-station automated railway network consists of a ring route around Paris (line 15) and three additional lines (16, 17 and 18) connecting adjacent neighborhoods.

These 4 new lines will circle the capital and link to 3 airports and many business districts. It will transport 2 million commuters a day. The lines are planned to open in stages, with the full completion of the project scheduled for 2030.

The construction of line 15 started in 2015, with its first section between Pont de Sèvres Métro station and Noisy – Champs RER A station.

デクストラ was involved at that stage by providing 100,000 フォルテック rebar couplers to connect the columns of the stations’ structure.

Additionally, Dextra supplied 15,000 meters of ソニテック sonic tubes to facilitate the structural integrity testing using the CSL (Cross Sonic Logging) method, thus ensuring the homogeneity of concrete within the deep piles and diaphragm walls that are being constructed for the future underground stations.

The first section of line 15 is scheduled to open in 2020.

深層トンネル下水道システム (DTSS) – フェーズ 2

投稿日: アーティスト: Sir Gwi

深層トンネル下水道システム (DTSS) – フェーズ 2

The Deep Tunnel Sewerage System (DTSS) is a used water infrastructure project being developed by the Public Utilities Board (PUB) of Singapore to meet the country’s long-term clean water needs.

DTSS deploys deep tunnels to convey used water to 3 centralised water reclamation plants (WRP) located in the coastal areas.

The used water is then treated and further purified into clean water to be supplied under the brand name NEWater, with excess treated effluent discharged to the sea through outfall pipes.

The project involves the construction of two large tunnels, 6.5m in diameter and with a total length of 80km, located about 50m below the surface, to carry sewage to 3 centralised WRPs.

The project is developed in two phases. The first phase was completed in 2008 and comprises a 48km-long underground tunnel system to channel the flow of water from existing gravity sewers to the Changi WRP in the east and Kranji WRP in the north.

The second phase will extend the tunnel system to the west through a 30km-long south tunnel, 60km of link sewers, the Tuas WRP and a 12-km deep-sea outfall.

For the second phase, Dextra supplied 1,210 rock bolts for stabilising the tunnel excavations and 8 GFRP Soft-Eyes for TBM breakthrough.

Soft Eye & Rock Bolt

2022 年に予定されているフェーズ 2 の完了時には、トゥアス WRP の NEWater 工場はシンガポールの総水需要の 55% に貢献することになります。

さらに、Tuas WRP は 1 日あたり 800,000 立方メートルの使用済み水を処理し、世界最大の膜バイオリアクター施設となります。

テルアビブレッドライン、市内初のライトレールシステム

投稿日: アーティスト: Sir Gwi

テルアビブレッドライン、市内初のライトレールシステム

The Red Line is the first section of the new Light Rail system currently in development in Tel Aviv, Israel. The line will run from Bat Yam in the southwest to Petah Tikva in the northeast.

The total projected length of the line is 24km, comprising 34 stations, 10 of which are underground, including an interchange with Israel Railways services.

For this project, Dextra is currently supplying products for the construction of six of the underground stations including Bialik, Abba Hillel, Arlozorov, Shaul HaMelech, Yehudit and Allenby.

More than 200,000 Bartec rebar couplers were supplied for 地中隔壁 and for the construction of the station boxes.

Dextra also provided 50,000m of Sonitec ST50 to facilitate the testing of the structural integrity of foundation piles using the CSL (Crosshole Sonic Logging) method.
Sonitec is an easy-to-assemble and time-saving sonic tube solution, preferred among piling and general contractors worldwide for more than 20 years.

The line is currently scheduled for completion in October 2021, making it the second underground service operating in Israel.

スンガイ ブロー - セルダン - プトラジャヤ (SSP) MRT 線

投稿日: アーティスト: Sir Gwi

スンガイ ブロー - セルダン - プトラジャヤ (SSP) MRT 線

The Malaysian SSP Line is the second line of Klang Valley’s MRT System. The main purpose of this project is to provide a better railway infrastructure and transport system in order to serve Malaysia’s growing population.

Commuting through the heart of the Capital

The Malaysian SSP Line will connect Sungai Buloh to Putrajaya, running through the center of Kuala Lumpur and its suburbs. With its 35 stations, among which 11 will be providing connections to other lines, the SSP Line will allow commuters to transfer with ease to and from existing and planned rail lines.
The rail transit system involves the construction of more than 52 km: 13.5km of underground line and a 38.7km of elevated rail. Once operational, it is expected to have a ridership of 529,000 passengers per day.

Rebar couplers for D-wall and slab

For this large metro project, the contractor joint venture MMC-Gamuda has chosen Dextra’s popular rebar reinforcement solution バーテック, supported by 3 sets of bar-end high-productivity equipment. Approximatively 200,000 pieces have been delivered as of April 2018.
デクストラ バーテック have been used for productivity reasons. Couplers were embedded in the diaphragm walls surrounding the underground stations, providing horizontal connection points at a later stage of the project. After excavation, couplers are used to connect bars and start the station’s slabs.

For more information about our solutions in Malaysia, please contact Dextra’s Kuala Lumpur office.