Saad Iqbal A bridge is a structure that is used to cross some form of barrier, making it easier get to one place from another. Other barriers, such as rivers, have always confronted travelers and traders who wanted to take the shortest, quickest and safest route to complete their journeys. Types of bridges in Civil Engineering Arch … Read more
CHANGSHA, June 27 (Xinhua) — A 2-tonne truck was driven onto the world\’s longest and highest glass bridge in Zhangjiajie, Hunan Province in central China, on Sunday in a safety test ahead of its slated opening in July. The 430-meter bridge tucked between two steep cliffs is 300 meters above the ground. To further convince … Read more
Negative skin friction occurs when concrete piles are situated in soft soils, consolidating soil-mass, etc., resulting in a downward force that increases loading on shaft piles and reduces the bearing capacity of the piles. A new concept based on the shifting rate of piles, and the settlement rate of the surrounding soils has been suggested … Read more
TMB is used as an alternative to drilling and blasting (DB) methods. TBMs are used to excavate tunnels with a circular cross section through a variety of subterranean matter; hard rock, sand or almost anything in between. As the TBM moves forward, the round cutter heads cut into the tunnel face and splits off large … Read more
To determine the orientation of guided bearings, one should understand the movement of curved region of a prestressed bridge. Movement of prestress and creep are tangential to the curvature of the bridge (or along longitudinal axis) while the movement due to temperature and shrinkage effects are in a direction towards the fixed pier. If the … Read more