Construction

Humkhad Nala at Chainage 49.07 km of the PAJPL Una Branch Pipeline experienced recurring washouts during successive monsoon seasons, necessitating permanent realignment of the affected section. A single 854 m Horizontal Directional Drilling (HDD) crossing was constructed, placing the 12.75-inch OD pipeline at a maximum depth of approximately 55 m...

Shortly after the war in Ukraine had begun, it became clear that Germany needed to diversify its sources of natural gas supply to reduce its dependency and ensure its national energy security. The import of liquefied natural gas (LNG) through the Wilhelmshaven port required a strong connection to the national gas transmission network. OGE had to...

Nowadays plastic pipelines form an integral part of modern infrastructure. The most common applications for butt-fused plastic pipelines are water and natural gas distribution networks. Inventions of new materials, production and installation methods for extruded pipes enables new applications and dimensions in a growing range of needs. Climate...

The Feeder 9, River Humber Pipeline project is required to replace the existing Feeder 9 gas pipeline with a new 1,050 mm high pressure gas pipeline under the estuary of the River Humber. To avoid any impact on the local environment, the pipeline will be installed inside a precast concrete lined tunnel. The tunnel is being excavated utilizing a 4.4...

Depending on the local site conditions (i.e. bathymetry, geomorphology, geology), an offshore geohazard may have a detrimental impact on an offshore high-pressure gas pipeline during its lifetime. This fact is more pronounced in areas characterized by seismicity and the associated earthquake-related geohazards. Therefore, the design of an offshore...

Safety and compliance are priorities for the design and operation of pipeline pig launchers and receivers, also known as traps. During design, different codes and standards can be applied depending on the product that will be transported and where the equipment will be located. Because of code interpretation, an operator or equipment provider may...

The TANAP route runs 92 km through one of the world´s largest gypsum karst terrains, covering an area of 2140km² (Günay 2002; Doğan & Yeşilyurt 2019) located in the Turkish Province of Sivas. A fantastic place for the geologist but a big challenge for the routing and construction of a pipeline. Based on the morphology a karst classification...

For the gas supply in Europe, a reliable pipeline network has the highest priority. Besides the construction of the main supply routes, the fast and safe installation of the regional country-specific distribution networks play a key role. Different points of view of all involved parties have to be considered when it comes to the planning of routes...

In recent years, the issues of the environmental protection and nature conservation - and thus the question of regenerative energy sources - have become particularly important. STREICHER also holds the objective to reduce CO2 emissions in the future in order to reduce the ecological footprint. Therefore, the group has made it a primary objective to...

The Sewer Authority Mid-Coastside (SAM) transports and treats wastewater from several coastal communities in San Mateo County, California. In the spring of 2017, one of SAM’s force mains, the Granada Force Main, experienced a series of ruptures that disrupted operations and negat ively impacted local beaches. Due to its p revious history of breaks...

The global production of natural gas is increasing continuously leading to development of gas fields with challenging contents such as sour gas containing highly toxic hydrogen sulfide. In a process called “gas sweetening” the hydrogen sulfide is removed, yielding liquid elemental sulfur. This substance is not just a by- product of the natural gas...

Airborne bathymetric laser scanning delivers the same results as regular airborne laser scanning, but with one major difference, this technology is able to penetrate water. The technology has matured through the past years, meanwhile it is used for the bathymetric survey of lakes, harbors, coastal shore lines and rivers. The Trans Austria...

Pipelines may observe significant axial displacement or force at the ends that tie-in with connected equipment and/or facilities. These axial forces are mainly driven by pipe size, temperature, pressure, length and surrounding soils or supports, and can have devastating effects on connecting facilities if not properly accommodated in the design...

Pressurized fluid transport structures are subject to regulatory obligations for which the system operators must ensure compliance with the administration. In order to meet the obligations and ensure safety of the networks, in addition to the regulatory documents, the managers demand from the holders of laying contracts, the provision of documents...