نتایج جستجو برای: earth pressure balance epb

تعداد نتایج: 629206  

Granular materials have a tendency to exhibit an arching effect by which the load is transferred from yielding parts to adjacent stationary parts. Retaining walls are among those structures that the soil arching plays an important role in the distribution of earth pressures. This paper briefly reviews the development of soil arching theory and its application to different geotechnical projects....

Ali Ghanbari, Fariborz Dehghani, Hadi Shahir,

In the narrow geosynthetic-reinforced retaining walls a stable rear wall exists in a short distance and so there is no enough space to extend appropriate length of reinforcements. In this case, the probability of overturning of retaining wall increases especially when subjected to earthquake loading. To increase the stability of the wall, reinforcements may be connected to the stable rear surfa...

Background. Middle-aged women are at risk of musculoskeletal disorders because of the decreased muscle mass and bone density caused by a decreased endocrine function. Objectives. This study investigated the effectiveness of a stabilization exercise using respiratory resistance on female patients in their 40s with low back pain. Methods. Forty-four female patients in their 40s with low back pa...

2009
Steven A. Balbus

We show that a simple, modified version of the Magnetorotational Instability (MRI) can develop in the outer liquid core of the Earth, in the presence of a background shear. It requires either thermal wind, or a primary instability, such as convection, to drive a weak differential rotation within the core. The force balance in the Earth’s core is very unlike classical astrophysical applications ...

ژورنال: توانبخشی 2018

Objective Ageing is associated with some physiologic and functional declines that can increase disability, frailty, and falls in the elderly, so balance is used as a factor in determining the level of independence of the elderly. On the other hand, the mean velocity is considered as the most reliable indicator of the center of pressure to assess the balance and reduce the risk of falling. Becau...

2016
Leo Sold Matthias Huss Horst Machguth Philip C. Joerg Gwendolyn Leysinger Vieli Andreas Linsbauer Nadine Salzmann Michael Zemp Martin Hoelzle

Citation: Sold L, Huss M, Machguth H, Joerg PC, Leysinger Vieli G, Linsbauer A, Salzmann N, Zemp M and Hoelzle M (2016) Mass Balance Re-analysis of Findelengletscher, Switzerland; Benefits of Extensive Snow Accumulation Measurements. Front. Earth Sci. 4:18. doi: 10.3389/feart.2016.00018 Mass Balance Re-analysis of Findelengletscher, Switzerland; Benefits of Extensive Snow Accumulation Measurements

Journal: :Tunnelling and Underground Space Technology 2016

2013
James Maher

Modern tunneling projects will often rely on a Tunnel Boring Machines (TBMs) rather than traditional drill and blast (D&B) methods, because of TBMs’ increased tunneling efficiency[1]. TBMs have a circular drill at the front, which can range in diameter from 1 meter to 19.25 meters, depending on the desired use for the completed tunnel. Applications of tunnels dug by TBMs range from underground ...

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