Bechtel's Steve Smith provides some insight into the requirement for smat city sensor networks to be integrated into infrastructure for BIM Level 3 certification.
Learn how infrastructure can become a driver of development and stability with targeted investments in smart projects and capacity building that produce measurable results. This paves the way for sustainable economic growth in developing countries.
Access to water is a global issue that affects more than a billion people. By 2025, it is estimated that 3.5 billion people may live with extreme water scarcity. Together with Engineers Without Borders, Bechtel colleagues are working with vulnerable communities to build resilient infrastructure and improve access to safe, reliable drinking water.
The economic, social, and environmental effects of three massive projects on a small coastal city in Gladstone have been significant. A “trust deficit” with its nearly 35,000 residents required Bechtel to rethink our stakeholder engagement approach. Together with our customers and partners, we shifted from a transactional model of stakeholder engagement to a transformational model of stakeholder trust. Read Mellissa Case's Build100 blog and white paper to learn how.
The contribution of infrastructure to Africa's economic resilience is significant, but they take time to deliver. For this reason, they must be bankable—having the right policies, projects, and partners.
Read interviews with Steve Kay and Dave Shepherd, two of Bechtel's leading tunnelling experts.
Now's the time to replace crumbling bridges and roads with stronger, smarter alternatives. Bechtel President serves a wake-up call for America's infrastructure.
This panel will discuss the ways in which urbanization can become a driver of sustainable development and stability in Asia.
We are entering a new era of industrial development where a rethinking of infrastructure, as it relates to achieving the SDGs, is critical.
The paper discusses the primary drivers for technological change in railways and examines a new means for integrating complex systems in rail projects whilst meeting customer expectations and securing optimum stakeholder engagement throughout the project life-cycle.
When Crossrail Ltd. set out to make its new east-west rail line across London a model for sustainable construction on a massive scale, it chose Bechtel as its delivery partner. Together we are creating a comprehensive sustainability program that will become a benchmark for large-scale projects throughout the country.
The introduction of the Las Bambas copper project brought about noticeable changes, including a growing population; more local businesses; and new houses, streets, and bridges.
Designing cities to be more efficient and sustainable, moving beyond aid to support Africa’s development, and helping hydropower become a reliable and renewable source of energy are among the global issues for which Bechtel’s expertise and experience provide practical ideas and paths forward.
Bechtel colleagues are active members of their communities and contribute to improving industry sustainability practices around the world.
Prior to construction there were almost no local, aboriginal-owned businesses supplying materials and services to the project. Through the engagement efforts of Bechtel, our customer, and partners, the number has now grown to more than a dozen.
Bechtel is committed to providing vocational education, training, and career opportunities wherever we work.
When the National Infrastructure Master Plan (NIMP) was presented to the president of Gabon in November 2011, Libreville’s bus network no longer existed, and two-thirds of the population depended on private taxis.
Socio-economic circumstances across global emerging markets present challenges for countries, communities, businesses and investors. Find out how shifting and competing trends such as liberalization and urban growth, persistent poverty and resource constraints, coupled with the explosion of social media, is shaping the landscape for global business players.
This paper reviews integral methods to numerically solve the Bernoulli equation in compressible flow for several common situations: orifices, relief valves, and control valves.
Future-proofing systems requires a new and smarter approach to protecting the overall city and its systems. Information is currency in the modern, smart city—city planners are increasingly using advanced computer modelling to be able to rapidly analyze complex urban systems, capture information, and accelerate decision-making.
See how Bechtel has delivered iconic rail projects that have changed the world since 1898.
Natural disasters, resource constraints and new patterns of urbanization and development require companies and governments to plan for energy and other related infrastructure to be both resilient and sustainable. This event addresses strategies for deploying sustainable resilient infrastructure around the world.
This paper provides structural engineers with the basic tools for the understanding, calculation and use of foundation impedance functions.
Global megatrends—from the surge of people on the planet to the scarcity of the resources it needs—are changing the way we design, construct and operate structures and systems that will benefit society for the long term. Learn more about our research and initiatives to address these global megatrends through sustainable engineering.
This technical paper details a multi-phase subsurface investigation (SI) program performed to provide geo-characterization of a brownfield site for the modernization of a large industrial facility.
This paper includes a general description of the site and its geologic conditions, along with subsurface and groundwater conditions in the vicinity of the pile load test area
This paper introduces the relevance of Non Technical Skills in railway industry training schemes for the purpose of improving business performance and safety standards.
Meeting the financing need for bankable and sustainable projects must be a priority in the coming decades. Bechtel and other thought leaders convene at CSIS on Jan. 27 to discuss ways infrastructure can be a driver of development and stability.
The purpose of this discussion paper is to contribute to the thematic development of infrastructure currently under consideration in the post 2015 United Nations sustainable development goals (SDGs) deliberations. This paper was prepared by Bechtel Corporation on behalf of the U.S. Council for International Business (USCIB).
This paper provides an overview for the selection of the materials of construction for Liquefied Natural Gas liquefaction plants. The selection of optimum materials of construction affects both the initial capital investment and operational costs and profits.
In 2012, Bechtel provided engineering, procurement, and construction management services for the Catalina Solar Photovoltaic Generating Facility, a 110-megawatt, alternating-current (MWac) solar plant and associated 7.2-mile (11.6-kilometer), 230-kV transmission line that connects the solar facility to the power grid.
From May 2011 to July 2013, Bechtel provided project and construction management servicesto ATCO Electric, a Canadian electric transmission and distribution utility, for its Hanna Region Transmission Development (HRTD) project in Alberta, Canada.
The new Panama Canal locks are being built to accommodate ships with a total fresh water draft of 50 feet (15 meters), a beam of 160 feet (49 meters) and a length of 1,200 feet (366 meters). This compares with the current canal limits of about 41 feet (12 meters) of draft, 110 feet (30 meters) of beam and 1,000 feet (305 meters) in length.
This discussion centers on innovative ways of building government capacity in African governments, focusing on how private sector actors, governments, and multilateral institutions can support effective planning and management of infrastructure development to promote sustained, inclusive development and economic transformation.
Integration of the two OEMs’ advanced gas turbine designs could deliver combined cycle efficiencies that leapfrog the best available today.
This paper presents an improved two-step method that characterizes the incoherent FIM using combination of spatial mode shapes. Results are compared with SASSI2010 to judge the method’s accuracy for various response quantities, and sensitivity of results to the number of spatial modes is studied. The results show that the proposed method is quite accurate when a few basemat mode shapes are included in addition to the six rigid body mode shapes.
This paper discusses the importance of careful planning for proposed expansion of major railway systems.
Our team paid special attention to conserving groundwater and leaving the existing terrain and vegetation intact to maintain natural filtration systems.
The Crossrail project is the biggest construction project in Europe. The scope consists of 13 miles (21 kilometers) of twin bore tunnels and seven new stations. An unusual and critical challenge of the job was to modernize the Connaught Tunnel, a Victorian tunnel built for Victorian rail use, to meet the space needs for the new electrified trains.
We founded Gabon’s first fully recognized chapter of Engineers Without Borders, a major nonprofit humanitarian organization that supports community-driven development programs worldwide.
In design of pressure relief systems, a pool fire is one of the most typical relief cases. This paper illustrates one method where the heat input is limited by the fuel supply.
Ships have significantly increased in size and number over the last decades. Ports and waterways are accommodating these ships and at the same time new terminals are designed in the existing infrastructure. In restricted water moored vessels can be affected by hydrodynamic forces induced by passing ships. The ROPES project was initiated to investigate these effects, to develop a numerical model for predicting these loads and to validate this model. This paper provides an overview of the ROPES project and its results.
This technical paper describes different design configurations of tanks where overfilling is a possibility.
At Crossrail, we are passionate, not just about building a new railway but ensuring it is delivered in a way that provides a lasting economic, environmental and social sustainability legacy. We have enshrined this in our strategy and governance processes and our contractors have joined us on this journey. This paper provides a comprehensive yet concise account of how Crossrail has organized itself to deliver a sustainable outcome as well as detailing a structure for successful outcomes.
Bechtel funding and volunteers helped Engineers Without Borders–India bring solar-powered LED lighting to the village of Sirohi.
High in the Peruvian Andes, we are working with Glencore/Minmetals to build a copper concentrator that, when complete, will produce 400,000 metric tons per year of copper as well as significant gold, silver, and molybdenum by-products.
With the ever-growing demand for better, faster cellphone service, and the race by all major telecommunications companies to expand their networks to meet the demand, Bechtel recognized the likelihood of a shortage of skilled cell tower technicians, which would pose a safety threat to the industry and communities.
In Saudi Arabia, the team working on our Jubail Industrial City project, the largest civil engineering project in the world today, created a recycling initiative across all 50 contract sites.
The three LNG plants under construction on Curtis Island represent the greatest concentration of Bechtel projects anywhere in the world. The construction program is part of the largest private capital investment in Australia’s history. It is also a great opportunity to grow local businesses and build the local workforce.
We are implementing a comprehensive program to recruit and develop an estimated 8,000 construction workers to support the energy boom along the U.S. Gulf Coast.
This paper presents a three-step method for designing steel plate composite (SC) walls subjected to missile impact.
Natural gas pipelines commonly transport small amounts of sulfur as hydrogen sulfide and mercaptans of various types. This paper presents test results for a new process for removing elemental sulfur.
Since 2010, Bechtel has had the privilege of serving the people of Gabon to achieve Le Gabon Émergent—the national vision for sustainable growth and shared prosperity. We are working closely with the government and its citizens to implement their $25 billion National Infrastructure Master Plan that will enable the country to modernize the national workforce, expand access to social development, and advance connectivity within the country, across Africa, and with the rest of the world.
This technical brief draws upon the second-law based exergy concept to rigorously quantify the performance entitlement of a supercritical high-pressure boiler section in a heat recovery steam generator utilizing the exhaust of a gas turbine to generate steam for power generation in a steam turbine.
Bechtel was the 2013 national sponsor of the FIRST LEGO League UK & Ireland. To celebrate this sponsorship, we built a replica of a tunnel-boring machine from more than 50,000 LEGO bricks.
Net thermal efficiency ratings of 60% are here —what’s next?
Pulse detonation combustion holds the key to 45% simple cycle and close to 65% combined cycle efficiencies at today’s 1400-1500°C gas turbine firing temperatures.
Assuring the protection of people and the environment from unnecessary exposure to radiation is of great concern to nuclear electric power generators and regulators. In order to secure and maintain a license for operation of a nuclear power plant in the United States, the applicant is required to assess postulated scenarios to determine if an accidental chemical release either onsite or offsite will result in a design-basis event. When determining design-basis events, accident categories such as fire, explosion and/or toxic vapor cloud formation are considered.
The purpose of this paper is to assess the differences in foundation bearing pressure demand obtained using the Random Vibration Theory (RVT) method and the time history method.
This paper provides an alternative design approach for thermal effects. Unlike the conventional approaches used in ACI 349 and ACI 359, where the main emphasis was given for estimating thermal loads and combining them with mechanical loads, the proposed design approach calculates thermal loads on the basis of design strengths.
This study provides recommendations for the S- and P-wave velocity, site attenuation, and unit weight of the reference rock for Central and Eastern North America. The reference rock condition defines the boundary between the site specific amplification and the regional ground motion model. A consistent definition of this boundary across models allows for models of site amplification and ground motion to be developed independently.
In this paper is a detailed analysis of the effect of water temperature on the overall efficiency of a fogging system, both from an experimental and a theoretical view point.
Michael Graham speaks about the largest and most complex DOE project; the Waste Treatment Plant in Hanford, Washington. This one-of-a-kind project includes a complex of facilities being designed and built to immobilize the highly radioactive waste stored in 177 aging underground tanks. Some of the tanks date back to World War II and 67 have been reported to have leaked. WTP will immobilize the waste using a process known as vitrification, which mixes the solid and liquid waste with molten glass to safely isolate the waste from the environment.
An enhanced screening algorithm for power generation system total ownership cost (capital and operating) and thermal performance (output and efficiency) simplifies the analysis.
LNG liquefaction plants can benefit significantly by power augmentation of gas turbines. Gas turbine inlet cooling solutions, such as evaporative and mechanical cooling systems, have been operating for several years and are currently being implemented in 11 large LNG trains utilizing the ConocoPhillips Optimized Cascade® LNG process.
This investigation identified that water consumption practices in camps were not fully understood and no consistent standards were being employed, contributing to errors in sizing water supply systems in camps. This paper details the water conservation evaluation alternatives and cost/benefit analysis based on current and predicted water usage for Mining & Metals projects.
The Bechtel National Inc. team designing, building, and commissioning the Hanford Waste Treatment Plant (WTP) reported several major accomplishments in 2013.
Building local capacity in Angola.
When government officials in Gabon decided to develop their national infrastructure plan, they selected Bechtel to support the country’s progressive programs and vision toward economic growth.
The government of Mongolia awarded the Sainshand Industrial project to Bechtel in 2011. Bechtel helped the government develop a master plan and concept for the Sainshand Industrial Complex, a major industrial center to support the expanding mining operations in the company.
We served a key role in the dynamic development of Middle Eastern airports during recent decades, as these airports have rapidly advanced to become global leaders in size, efficiency, and technological sophistication.
At our Sohar Aluminium Smelter project in Oman we set out to increase the skills of Omani workers.
The manuscript provides a workshop summary that can be seen as the framework for a “state-of-practice” document. The purpose(s) of break analysis, methods used, and documentation of important assumptions are addressed. Commentary citing concerns raised during and after the workshop are also included as it was clear that our ability to conduct accurate and realistic dam break analyses is limited.
This paper discusses the issue of radial tension in prestressed cylindrical and dome shaped structures and proposes formulae to calculate radial stresses. A practical example is presented to illustrate the use of the proposed method which is then verified by using state-of-the-art finite element analysis. This paper also provides some practical design consideration for detailing of radial reinforcement in prestressed containments.
As powerful as Building Information Modeling (BIM) tools are in modeling the built environment, current BIM strategies limit the size of facilities that can be modeled while increasing the time needed for modeling and the quality of BIM models produced. In the same way that prefabricated modular construction techniques are improving the speed and quality of construction delivery, a modular approach to BIM modeling substantially increases the scale of facilities that can be modeled while decreasing modeling time and increasing model quality.
This paper addresses and evaluates the performance of several turbulence model options and modifications within a CFD code for the assessment of intake flow.
A method to decrease the modeling time for a computational fluid dynamics (CFD) simulation of the pump-out process of a multi-constituent, radioactive slurry in a mixing vessel is developed.
This paper compares the results of estimated values made during the licensing and design phases of the project, based primarily on laboratory test results, with in-situ shear wave velocity measurements made during the actual construction. In particular, SASW results from the first two levels of backfill tested (about 25 and 50 ft [7.6 to 15.2 meters] of backfill placed) are evaluated.
This paper provides a detailed treatment of media evaporative cooling, discussing aspects that would be of value to an end user including selection of climatic design points, constructional features of evaporative coolers, thermodynamic aspects of its effect on gas turbines and approaches to improve reliability.
This paper discusses criteria for evaluating the most efficient combination of a centrifugal compressor and its gas turbine driver as an integral package from a purchaser’s viewpoint. It also addresses API standard requirements on gas turbine driven centrifugal compressors.