Posts

Showing posts from July, 2021

The Selection of Suitable Boundary Conditions for Finite Element Simulations of Deep Tunnels- Juniper Publishers

Image
 Civil Engineering Research Journal- Juniper Publishers   Abstract In finite element simulations of deep tunnels an appropriate selection of the boundary conditions at the border of the model is important. Commonly, a system with vertically and horizontally fixed boundaries is used for finite element calculations of deep tunnels. In the contribution the shortcomings of this assumption will be explained and the requirements to the model size, which should be considered for this type of boundary conditions, are discussed. An alternative approach is also presented, which is derived from a commonly used approach for c and has been adapted to deep tunnels. Go to Mini Review We speak of deep tunnels if the overburden height is much larger than the other dimensions of the model and therefore it is not possible or useful to model the whole soil or rock mass located above the tunnel. Moreover, the variation of the overburden stress level in the zone of the tunnel is insignificant compared to th

Mobility as a Service: A solution to traffic congestion in Florida- Juniper Publishers

Image
 Civil Engineering Research Journal-Juniper Publishers   Abstract The needs for the growing and aging population, increased urbanization, and sustainability goals are all challenging the cities and suburban areas in different ways. As a result, administrators are dealing with the effects of traffic congestion, under-utilized public transit systems, limited funds, and increased problems with environmental impacts. Even if still emerging, many regard mobility as a Service (MaaS) to be an approach that could help authorities develop transport services and reduce some of the problems facing the system. However, several factors are being involved in MaaS that should be considered for specific regions with specific features. This article is the author’s opinion regarding the application of MaaS in the region of Florida, United States. Keywords:  Traffic congestion; Mobility as a service; Public transportation Go to Introduction The future of transportation is defined by autonomous vehicles,

The Fundamentals of Surveying- Juniper Publishers

Image
 Civil Engineering Research Journal- Juniper Publishers   Opinion As technology has become more accessible and mobile there is a misconception that it has the capability of producing better results and is on course to replace traditional methods. This is a discussion I have had with other adjuncts and professionals who have taught courses at City Tech. The methods we teach are applicable to first- and second-year civil engineering and construction management technology students in New York City and are currently based on traditional surveying methods. The course is an introduction to land surveying equipment and techniques and so most students are unfamiliar with the terms used to describe a plane two dimensional versus a geodetic or three-dimensional surface. At this point in their academic career they have only been exposed to plane geometry and trigonometry, so we start by describing a location as a point on a local two-dimensional grid. Then we say we want to use this point as a re

Crack Detection using Faster R-CNN and Point Feature Matching-Juniper Publishers

Image
 Civil Engineering Research Journal- Juniper Publishers   Abstract The detection of cracks on concrete surfaces is the most important step during the inspection of concrete structures. Inspection technology utilizing drones with image processing technique has recently been applied to crack assessment to overcome the drawbacks of visual inspection. However, identification of crack location requires watching the inspection videos to exactly locate cracks. This paper proposes a fast and easy method for cracks detection which provides the inspector with photos for the inspected structure that show the crack locations, and the inspector does not need to watch any inspection video. In the beginning, the drone will take a photo for the inspection element or region (Target Image). Then the drone will start searching for cracks using Faster Region- Convolution Natural network (Faster R-CNN) algorithm which allow for real time crack detection. When drone catches crack it will take a photo for th

Assess the Effects of Leakage Current on Reinforced Concrete in a Connected Building System- Juniper Publishers

Image
 Civil Engineering Research Journal- Juniper Publishers   Abstract Armed concrete has been used as an effective and safe German for over 50 years in industrial, commercial systems, as well as systems protection systems. Concrete acts as a suitable substrate such as many moist soils, such as an active media environment. The ability of the concrete to accelerate moisture absorption and stability, in the long run, makes the task of implementing the earth electrode, especially for dry places. Over the years, the use of the buried electrodes in the concrete has reached full maturity. The primary concerns for dealing with large currents and preventing local rapid warming and blowing up concrete supports of embedded metal conductors have been considered. However, new concerns appeared and should be addressed by industry experts. A new concern is the long - term impact of small currents on rebar corrosion and the creation of micro-cracks around concrete connections. In this paper, the long - t

Happy Independence Day- Juniper Publishers USA

Image
  Independence Day- Juniper Publishers USA     Juniper Publishers Wishing You a very Happy US Independence Day