TESTING AND MODELING OF SEEPAGE INTO UNDERGROUND OPENINGS IN A HETEROGENEOUS FRACTURE SYSTEM AT YUCCA MOUNTAIN, NEVADASeepage is an issue of some importance for the proposed long-term geologic disposal of high-level radioactive waste at Yucca Mountain. Seepage into the tunnels in which the waste ...
Tunnels and underground excavations - Underground excavations and structures: While chambers in 1971 were being excavated in rock to fulfill a wide variety of functions, the main stimulus to their development had come from hydroelectric-power-plant requi
That’s because as 2024 kicked off, the topic of tunnels began to come up again and again. They can be dangerous or just baffling, their scale often impressive (and sometimes disputed). A few remain works in progress: TikToker @engineer.everything, nicknamed “TikTok tunnel girl,” confirme...
To sink mine shafts and drive inclined drifts, underground roadways or tunnels successfully, experience and skill is needed to maintain excavation stability and to deal with and control groundwater. The presence of the latter is possibly the most serious threat to working in the underground environme...
shafts or tunnels unquestionably has been raised most forcefully within the context of nuclear waste disposal. Several nuclear waste disposal programs, notably the Civilian and the Defence programs of the US Department of Energy, the US Nuclear Regulatory Commission and the Canadian and Swedish radioac...
British photographer Alastair Philip Wiper has documented a subterranean fallout shelter in Las Vegas, Nevada, complete with a four-hole putting green surrounded by faux pine trees and painted scenery. More Douglas Jardim | 22 August 2024 | Leave a comment Underground schools "to create safe cond...
At the Nevada Test Site (United States), in the desert at Lop Nor (China), and at Semipalatinsk (Kazakhstan), the tests are carried out closer to the surface, and the full thickness of the rocks located above a test is affected by the collapse of the cavity roof. At the surface a...
Two parallel tunnels located in Southwest China have a total length of 8.72 km and their section are arched straight wall. The tunnels mainly pass through the mountain with the ground elevation of 1224–1259 m, and the relative height difference of 35 m. The ground vegetation is mainly low ...
Although UFO researchers insist that there are underground alien bases in Nevada, Arizona, California, Wisconsin, Colorado, and many other areas, the alleged underground facility outside Dulce, New Mexico, is by far the most notorious. According to many UFO investigators, there are men and women...
This article presents the main issues of tunnelling in the Netherlands in 1999. In Spring 1999, Holland will have nine tunnels, with total length 22.8km, under construction. By the end of 1999, these figures are expected to rise to 12 tunnels of total length 38.6km. With an estimated tunne...