Juniper Publishers Journal Of Civil Engineering

 Civil Engineering Research Journal- Juniper Publishers   Introduction Nowadays fully three-dimensional positions - latitude, longitude and height are commonly provided by Global Positioning Systems (GPS) with WGS84 ellipsoid as a reference surface. The knowledge of terrain heights is very essential for several surveying and civil engineering works. The type of heights needed for such applications is a height above mean sea level (MSL), usually called orthometric height. A precise geoid model is required to transform GPS-based geodetic heights to orthometric height to allow such data to be directly used in surveying and civil engineering applications [1]. The process of geoid modelling can only be performed if dense networks of precise levelling or gravity and astronomical deflections of vertical are made available. Go to Objective The objective of this article is to formulate a local geoid model that would allow utilization of GNSS data in the fields of surveying and civil en...

 Civil Engineering Research Journal-Juniper Publishers   Abstract In this literature review paper, undergraduate senior Civil Engineering students from California State University, Northridge, under the supervision of Dr. Tadeh Zirakian and Dr. David Boyajian, introduce a research on orifice meter and its applications in real life while analyzing the effect of variables, such as flow, velocity, pressure, and volume. Orifice flow meter is the most commonly used device for gas flow measurement. For a most accurate measurement, the orifice meter should be applied to gas flows, which are steady or vary slowly with time, are in the turbulent flow region, and are well below sonic velocity. The gas should be single phase and not contain suspended particles. Availability of sufficient permanent pressure loss is a requirement for any head-measuring device and must be considered in its application. Completion of this virtual research achieved several educational endeavors, namely enabli...

 Civil Engineering Research Journal- Juniper Publishers   Abstract Desert sand is subject to deflation. During the construction and operation of railways in the sandy desert, deflation leads to filling the railway track with sand, as well as to soil erosion. To prevent this phenomenon, a binder is sprayed onto the surface of the sand. The penetration of the working composition of the binder into the sand is accompanied by an uneven distribution of the substance, which is proposed to characterize the saturation coefficient. The features of the interaction of the binder and sand from which the protective crust is formed are revealed. Impregnation occurs under the predominant influence of gravitational or capillary forces. The latter allows you to have a uniform distribution of the substance. Preliminary wetting can reduce the pore space of sand and change the nature of the transfer of matter to capillary, which as a result allows obtaining resource-saving technology for fixing m...

 Civil Engineering Research Journal- Juniper Publishers Abstract Different methodological routes to the study of cost overruns are evident in the literature. A critical review reveals several gaps, particularly the lack of methodologically robust explanatory evidence to support the assertions that geotechnical risks significantly impact on cost overruns in highway projects. This study evaluates and select an adequate philosophical/methodological orientation relevant to provide a geotechnical narrative to the phenomena of cost overruns in highway projects. This paper thus sets out the underlying philosophical and logical reasoning that served as a guide on the conduct of a study, carried out to illuminate geotechnical trajectories to cost overruns in highway projects. Critical evaluation of the different philosophical stances evident in the literature was carried out, while factoring in the practicality and compatibility of the methods implicit in the various research strategies. Th...