Fault movement and its impact on ground deformations and engineering structures

1996 ◽  
Vol 43 (2-3) ◽  
pp. 119-133 ◽  
Author(s):  
Luis E. Vallejo ◽  
Mahiru Shettima
Keyword(s):  
Engineering Structures ◽  
Fault Movement ◽  
Ground Deformations

Analytical Methodologies for Buried Pipeline Design in Geohazard Areas

2016 ◽  
Author(s):  
Gregory C. Sarvanis ◽  
Spyros A. Karamanos
Keyword(s):  
Lateral Spreading ◽  
Slope Instability ◽  
Structural Safety ◽  
Buried Pipelines ◽  
Analytical Methodology ◽  
Fault Movement ◽  
Seismic Fault ◽  
Ground Deformations ◽  
Pipeline Wall ◽  
Pipeline Design

In geohazard areas, buried pipelines are subjected to permanent ground deformations, which constitute major threats for their structural safety. Geohazards include seismic fault movement, liquefaction-induced lateral spreading and slope instability, and the corresponding deformations induce severe strains in the pipeline. Calculation of these strains is necessary for assessing pipeline integrity. In the present paper, an analytical methodology is presented and compared with existing analytical and numerical methodologies for stress analysis of buried pipelines. The proposed methodology is also compared with full-scale available experimental results and offers significant intuition on the behavior of buried pipelines subjected to permanent ground deformations. Using the proposed analytical methodology, one may predict the strains developed in the pipeline wall quite efficiently and with good accuracy.

Lighting of Engineering Structures and Industrial Facilities New Aspects of the Topic

2018 ◽  
pp. 29-36
Author(s):  
Nikolai I. Shepetkov ◽  
George N. Cherkasov ◽  
Vladimir A. Novikov
Keyword(s):  
Fundamental Problem ◽  
Lighting Design ◽  
Aesthetic Value ◽  
Engineering Structures ◽  
Industrial Facilities ◽  
Artificial Lighting ◽  
Industrial Structures ◽  
Design Solutions ◽  
Architectural Lighting ◽  
The Aesthetic

This paper considers the fundamental problem of artificial lighting in various types and scales of industrial facilities, focusing on exterior lighting design solutions. There is a lack of interest from investors, customers and society in high­quality lighting design for industrial facilities in Russia, which in many cities are very imaginative structures, practically unused in the evening. Architectural lighting of various types of installations is illustrated with photographs. The purpose of the article is to draw attention to the aesthetic value of industrial structures, provided not only by the architectural, but also by a welldesigned lighting solution.

IMPROVEMENT OF THE HYDRAULIC EXCAVATOR BUCKET DESIGN

2019 ◽  
Vol 16 (3) ◽  
pp. 202-213 ◽  
Author(s):  
G. G. Buriy ◽  
V. S. Shherbakov ◽  
S. B. Skobelev ◽  
V. F. Kovalevskiy
Keyword(s):  
Cost Reduction ◽  
Production Costs ◽  
Hydraulic Excavator ◽  
Engineering Structures ◽  
Excavator Bucket ◽  
Productivity Increase ◽  
Hydraulic Excavators ◽  
Reducing Costs ◽  
Rational Operation ◽  
Resistance Forces

Introduction.Construction of engineering structures is impossible without building and road machines. The large volume of financing is allocated for such machines’ purchase. The main ways of reducing costs of the equipment consist in more rational operation of the equipment and also in decrease of equipment’s cost by constructive changes. The paper demonstrates the new design of the single-bucket hydraulic excavator with smaller cost.Materials and methods.The main ways of cost reduction for construction machines are more rational operation and depreciation of a design with the required characteristics’ maintaining. The paper describes constructive changes of the working equipment of the single-bucket hydraulic excavator, which allow decreasing the production costs.Results.The authors describe the new bucket design of the single-bucket hydraulic excavator. Moreover, the authors carry out the analysis of the existing buckets’ design. The paper also illustrates the functioning on bucket forces while digging process. The authors describe the solutions of the problem for productivity increase of the single-bucket in hydraulic excavators. In addition, the authors make the scheme of the bucket loading while digging process. Such scheme helps to reduce resistance forces of digging.Discussion and conclusions.As a result, the paper presents the design of the working equipment of the hydraulic excavator’s single-bucket, which allows reducing resistance forces of digging. Such results would help to establish buckets of bigger capacity and would lead to the productivity increase.

QUANTIFYING LATE QUATERNARY FAULT MOVEMENT IN THE TEPETATE-BATON ROUGE FAULT ZONE SOUTHEAST LOUISIANA: IMPLICATIONS FOR COASTAL SUBSIDENCE

2016 ◽  
Author(s):  
Torbjörn E. Tornqvist ◽  
◽  
Zhixiong Shen ◽  
Nancye H. Dawers ◽  
Nicole M. Gasparini ◽  
...  
Keyword(s):  
Fault Zone ◽  
Baton Rouge ◽  
Late Quaternary ◽  
Fault Movement

Ultrasonic Torsion Welding of Aging Resistant Al/CFRP Joints - Concepts, Mechanical and Microstructural Properties

2017 ◽  
Vol 742 ◽  
pp. 395-400 ◽  
Author(s):  
Florian Staab ◽  
Frank Balle ◽  
Johannes Born
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Materials Science ◽  
Dissimilar Materials ◽  
Material Design ◽  
Ultrasonic Welding ◽  
Fatigue Properties ◽  
Aviation Industry ◽  
Efficient Design ◽  
Engineering Structures

Multi-material-design offers high potential for weight saving and optimization of engineering structures but inherits challenges as well, especially robust joining methods and long-term properties of hybrid structures. The application of joining techniques like ultrasonic welding allows a very efficient design of multi-material-components to enable further use of material specific advantages and are superior concerning mechanical properties.The Institute of Materials Science and Engineering of the University of Kaiserslautern (WKK) has a long-time experience on ultrasonic welding of dissimilar materials, for example different kinds of CFRP, light metals, steels or even glasses and ceramics. The mechanical properties are mostly optimized by using ideal process parameters, determined through statistical test planning methods.This gained knowledge is now to be transferred to application in aviation industry in cooperation with CTC GmbH and Airbus Operations GmbH. Therefore aircraft-related materials are joined by ultrasonic welding. The applied process parameters are recorded and analyzed in detail to be interlinked with the resulting mechanical properties of the hybrid joints. Aircraft derived multi-material demonstrators will be designed, manufactured and characterized with respect to their monotonic and fatigue properties as well as their resistance to aging.

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