Over nearly 60 years of construction and development, TEDI constantly focuses on comprehensive innovation to improve its potential, scientific and technical, technological level , quickly grasping and mastering advanced scientific and technological (S&T) achievements in the region and around the world. Learning to improve the capacity, level of acquisition, application and creativity in science and technology is not only an objective requirement of the development, but also the needs and responsibilities of each member in TEDI.

As a leading design consultant on construction of transport infrastructure in Vietnam, TEDI has continued to affirm its leading position in developing technology and applying advanced scientific advances in the world into Vietnam’s transport works; TEDI pays a special attention to the research and development of the combination of work structures with fine arts, landscapes, environment, etc., in accordance with the sustainable transport development strategy.

TEDI has been investing in-depth the design and survey softwares , modern equipment systems for each specialty. Up to now, the design software used at TEDI is copyrighted, the design work is converting designs from 2D to 3D to best control the design quality and to work towards management project according to the construction information model (BIM). Modern equipment is invested for laboratories, environmental monitoring; and equipment with new technologies for surveys and designs. The advanced software for consulting, forecasting and evaluating project investment efficiency has also been invested synchronously. It can be said that, during the process of building and developing, generations of TEDI leaders and engineers have determined that the research and application of new science and technology into production is the foundation of motivation for the sustainable development of TEDI.

In the field of science and technology research and development, TEDI soon applied the Quality Management System ISO 9001 in all stages and processes of creating products of Consulting Services, in order to improve the efficiency business results, improving the quality and level of science and technology in every TEDI’s product. With the focus on in-depth investment and the forefront of research and application of advanced science and technology, TEDI has achieved many outstanding achievements in the field of technical consultancy for transportation engineering projects. Many major projects, many key projects of the industry with new and modern technology have been successfully implemented in Vietnam, with significant contributions from TEDI. These achievement can be mentioned in  specific industries as follows specific industries as follows:

  • Application of RM calculation software in the design of Hue – junction intersection (Da Nang city), a three-storey interchange, of which the 3rd floor is a cable-stayed bridge;
  • Bac Luan II Bridge – a friendship bridge connecting Vietnam and China is a concrete arch bridge with the largest span in Vietnam (105m);
  • Successfully applying RM and Teckla design calculation softwares in the design of Bach Dang bridge, which is recognized as the most multi-spans concrete cable-stayed bridge with 4 continuous spans (110 + 240 + 240 + 110) m
  • Successful application of RM and Teckla design calculation software in the design of Hoang Van Thu Bridge (Hai Phong) – an arched steel pipe arch bridge with the largest span (200m) – with BIM application in design;
  • Tan Vu – Lach Huyen Bridge – Vietnam’s longest cross-sea bridge (5.44km) has been completed;
  • Ham Luong Bridge – Reinforced concrete bridge using balance cantilever technology for spans up to 150m long;
  • TEDI has mastered the technology of designing and supervising the construction of large-span concrete steel arch bridges such as Dong Tru Bridge (Hanoi) with the record of being the first 3-span continuous arch bridge in Vietnam with the largest bridge width: 54.5m;
    • Applying the construction technology of large suspension bridges and cable-stayed bridges with modern construction structure and technology such as Can Tho, Bai Chay, Thuan Phuoc, Nhat Tan and Bach Dang bridges;
  • Application of Incremental launching technology, Moveable Scaffolding System technology (MSS) suitable for span lengths from 40-70m….
  • TEDI has mastered the technology and successfully applied to the major cable-stayed bridge projects designed and built by domestic units such as Rach Mieu Bridge, the main span is 270m long.
  • TEDI is also an initiative in offering steel overpass solutions with many technical improvements to meet the fastest, lightest and most efficient construction goals, solving the traffic congestion problem in big cities such as Hanoi and Ho Chi Minh City
  • TEDI has been given the Engineering Exellence Award (EEA) by the American Council of Engineering Companies (ACEC) and the Environmental award by Transportation Foundation of America (TDF).for The tunnel project through the Hai Van Pass
  • Master the technology of tunnel design and construction according to Austrian NATM method and conduct the successful design survey of Deo Ngang road tunnel,
  • Application of specialized software to implement the design of Phu Gia – Phuoc Tuong tunnel, in coordination in consultancy of Co Ma and Deo Ca tunnels.
  • Applying immersed tunnel design technology in Thu Thiem immersed tunnel project across Saigon river and some underground tunnels in big cities …
  • Mastering the technology of road foundation construction and soft soil treatment, many advanced technologies have been applied such as using subsidence removal measures combined with the use of geotextile, absorbent wicks, sand piles, sand wells, cement concrete piles, technology of vacuum consolidation, …
  • TEDI also designed many expressways such as Hanoi – Hai Phong expressway, Lang – Hoa Lac expressway, Hanoi – Cau Gie expressway, Cau Gie – Ninh Binh expressway, Hanoi – Bắc Giang expressway, Bac Giang – Lang Son expressway, Ha Long – Van Don expressway, Thai Nguyen – Cho Moi expressway, etc …
  • In particular, TEDI has completed the pre-feasibility study report, the feasibility study for the North – South Expressway project – a national key project which is now under the technical design, in order to meet the urgent requirements for transportation route development of the whole country, promoting uniform economic development among economic regions.
  • TEDI also participates in project formulation, survey, and design of urban railway lines in Hanoi and Ho Chi Minh City with the purpose of approaching and gradually transferring technology from international consulting organizations, creating the foundation for the long-term development process, consolidating the leading position in this field in Vietnam.
  • Currently, TEDI has been selected as the leading consultant in the joint venture of the Preparation and Completion of the Pre-Feasibility Study Report for the North-South High-Speed Railway Project.

TEDI has also actively researched and applied software in traffic surveys, forecasts, design and calculations to implement National Transport Planning Projects and Urban Transport Planning Projects such as: Plan of Vietnam Highway Network Development to 2020 and orientation to 2030; Transport development plan of Hanoi Capital to 2030, vision to 2050; Transport Planning of Danang City; Planning of seaports of Groups I and II; etc.

TEDI continues to maintain its leading position with many large port projects along the country’s coast: Lach Huyen Port is the largest port in the North for container vessels of 10,000 DWT; Nghi Son port for vessels importing coal-oil of 20,000 DWT serving the Nghi Son petrochemical complex; CMIT container port for ships of 20,000 DWT; Breakwaters of Vung Ang port, Chan May port, Song Hau port, Tien Sa port, …; Coal Port of Quang Trach Thermal Power Plant for ships of 10,000 DWT; cement export port of Cam Pha Cement Plant;

A- Specialization of Topographic and hydrographic survey

– In addition to traditional methods, TEDI has mastered GNSS positioning technologies in detailed surveying and measurement; GIS applications to personal devices in the field; Digital aerospace imaging technology using controlled drones in measurement establishes a detailed plan … and other applications in obtaining spatial data from satellite images …

– Mastering automation data processing techniques, converting a variety of data formats in accordance with advanced software updated by the design department, mastering the technology of image capture flight processing to meet the requirements according to the traditional design and point data, point cloud, surface model for designing according to BIM model …

– Researching and gradually mastering the application of controlled flight equipment in combination with satellite positioning to survey, monitor and warn of road slip, and the integration of topographic data of the flying-taken photographs with Geological exploration drilling data …

  1. Specialization in geological surveys and experimental

– Application of the experimental drilling method using modern self-drilling equipment, in which the technology of taking rock and concrete samples (bored piles, soil cement piles, etc.) with double-barreled triple-barreled sample tubes is applied; Take weak soil samples by thin-walled sample tubes, piston sample tubes which are made in Japan; Research of installation and operation of geological drilling equipment so that it can be constructed in deep-water areas, with high flow speed, complicated tide (estuaries, on large rivers …) , oblique drilling, horizontal drilling for required projects (construction survey of traffic tunnels, slope protection works, repair of dam bodies, sloping roof…)

– Application of geophysical survey methods (seismic, electrical imaging, laser …) in combination with geological drilling to survey and study areas of slopes, karst caves, delineation of weak areas; Surveying traffic works, especially for tunnel constructions, slope protection works, deep roadbeds, and evaluating seismic resistance in construction designs …

– Diverse application of field experiments with modern equipment in project geological survey, hydrogeological survey, constructions inspection, such as:

  • Standard penetration test (SPT), Field Vane Shear Test in Cohesive Soi (VST), Test Method for Piezocone Penetration Testing of Soils (CPTu) (CPTu), (Pressure Meter Test (PMT, DMT), permeability tests, etc.
  • Testing / load testing experiments: CBR, DCP, embankment tightness, dynamic elastic modulus (FWD), Compression testing for piles and ground, PIT, PDA, Osterberg / O-Cell, Pull out testing, Lateral testing, bending load testing of reinforced concrete structures …

– Laboratory experiments fully meet the requirements of work geological survey, hydrogeology, and construction inspection such as:

  • Testing soil, stone, construction materials including mortar, cement, bricks, cement concrete, metals and welds, plastics, mineral powders, asphalt concrete, geotextiles, absorbent wicks, etc.
  • Testing soil, crushed macadam and cement.
  • Experimental analysis of the chemical composition of soil samples, water samples, assess the environmental erosion of concrete and reinforced concrete.

– Researching and creating software to support the field work, preparing reports on engineering geological surveys and accepting survey results.

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