To ensure no interruptions to customs clearance at Gongbei Port, an innovative long-distance curved pipe roof with soil freezing method is adopted to allow a super-shallow-buried large sectional double-decked six-lane tunnel to traverse under the Port.
I remember this one particular wooden pier being infamous for producing a broken neck almost weekly, because of all the young tourists that'd throw themselves headfirst into its super shallow waters.
A computational method of rock pressure applied to an ultra-shallow tunnel is presented by key block theory, and its mathematical formula is proposed according to a mechanical tunnel model with super-shallow depth.
Low-energy (1 to 20 keV) ion implantation of various impurities into Si is commonly used to make super-shallow p-n junctions[1, 2] and to form a variety of quantum-sized objects[3, 4].
This paper aims to find out a simple way to calculate the asymmetric rock pressure for design of tunnel lining in super-shallow surrounding rock.
While Activision has plenty of successful titles, none approach, or even attempt to replicate, the super-wide, super-shallow distribution of titles like Angry Birds and Farmville.
The practice in building the super-shallow tunnel has proved the feasibility of the calculation method and tunneling procedure presented in this paper.
To date, the calculation method of asymmetric rock pressure applied to super-shallow tunnel in strata with inclined ground surface has not been addressed [10].
