This paper examines TBM vibration as a source of information about geological conditions. An EPB TBM was outfitted with accelerometers to monitor vibration during excavation of the University Link light rail tunnel project (U230) in Seattle Washington. Impact-response testing of the TBM indicated that significant signal over a wide range of frequencies transfers from the cutterhead where vibrat...

3D reconstruction can be used as a platform to monitor the performance of activities on construction site, such as construction progress monitoring, structure inspection and post-disaster rescue. Comparing to other sensors, RGB image has the advantages of low-cost, texture rich and easy to implement that has been used as the primary method for 3D reconstruction in construction industry. However...

It’s always a great pleasure (partly because such a rare event) to welcome a new cumulative index to a periodical, especially an important national journal like this one on Welsh archaeology. It follows the pattern of its two predecessors under the same editorship; their difficult genesis was documented by Moore (2003).The run of indexed volumes now covers, impressively, the years 1846–1980. Bo...

The current guidance provided for alignment studies stems largely from Wellington’s “Economic Theory of The Location of Railways” which discusses the problem of minimizing grades and curves on a transcontinental scale. However, modern engineers often find themselves working on a less grand scale with shorter projects such as industrial spur build-ins and urban by-passes, and needing to consider...

This workshop brought together specialists from various fields to develop a drilling proposal to fill the “Oligo-Miocene Gap” that exists in our understanding of the functions of Earth’s systems. We propose to establish the first continuous high-deposition record of the Oligo-Miocene through new International Ocean Discovery Program (IODP) drilling in the North Atlantic to allow the development...

Read the free Plain Language Summary for this article on Journal blog. The Holocene, last 11,700 years, has been a period of accelerating human impacts every continent (Ellis et al., 2021). In Africa, Australia, Europe and Americas role humans, often in concert with rapid climate change, is clear extinction Pleistocene megafauna (Barnosky 2004; Martin, 1984; Van Der Kaars 2017). While it not kn...

This paper shows different approaches to save mineral resources or energy for the production of autoclaved aerated concrete (AAC) using secondary materials. The goal is implement new recycling routes in building industry and establish material loops. It could be shown, that AAC can act as a sink fine fractions from rubble consisting waste calcium silicate masonry units (CSU) by replacing primar...

The effectiveness in site layout and construction planning for extremely large-scale and complicated construction projects not only affects productivity and cost, it also controls whether a project can be handled and completed in a practical, safe, orderly, efficient and engineering feasible manner. Projects qualified to be extremely large and complicated can be in a variety of forms. Take for ...

Max Weber’s concept of routinization offers a useful framework for understanding the relationship between political economy and the organization of religious movements. Here, we apply this concept to a comparison of Hopewell and Mississippian, two of the most important religious movements in the precolonial Eastern Woodlands. We focus on two archaeological contexts in particular—Mound 25 at the...