Determining Critical Limits for Creep Velocities of OSBAT Right-of-Way Slope

2015 ◽  
Author(s):  
William Hideki Ito ◽  
Vinicius Carvalho Peixoto
Keyword(s):  
Management Program ◽  
Pipeline Network ◽  
Gas Processing ◽  
Right Of Way ◽  
Risk Management Program ◽  
Leading Position ◽  
Object Of Study ◽  
The Right ◽  
Huge Variety ◽  
Critical Limits

Petrobras Transporte S/A – TRANSPETRO – is the largest natural-gas processing company in Brazil and holds the leading position in fuel transportation and logistics in the country. The 14,000-km pipeline network, like other civil transportation infrastructure, crosses a huge variety of geological-geotechnical terrains, including those susceptible to natural hazards. The OSBAT right-of-way, which belongs to TRANSPETRO’s pipeline network, has become the object of study in this paper because some sections along the right-of-way have installed geotechnical instrumentation that indicates creep movements, which have been acting continuously for decades. Due to the importance of the OSBAT pipeline, a bibliographic review to support the development of limits for displacement velocity of slope shearing zones was concluded to assist the department responsible for evaluating when atypical behavior in the historical displacement data occurs. This geotechnical warning, allied with field and in-line inspections, will improve the pipeline risk management program. The limits for inclinometers were established using T-Student statistical analysis from a reading database based on geotechnical field inspections. However, direct correlation with pipe strain was not verified due to small accumulated displacements.

Plan of Communications and Relationship With Third Parties for the Bolivia-Brazil Pipeline Right-of-Way

2010 ◽  
Author(s):  
Ma´rcia Cauduro
Keyword(s):  
Management Program ◽  
Third Parties ◽  
Gas Pipeline ◽  
Corporate Communications ◽  
Technical Staff ◽  
Right Of Way ◽  
Management Plans ◽  
Integrity Management ◽  
Global Statistics ◽  
The Right

Objective: This work aims to present to the Plan of Communications and Relationship with Communities implemented by TBG as a tool for the Bolivia-Brazil Pipeline integrity management. Scope: In studies carried out by the European Gas Pipeline Incident Data Group (EGIG), global statistics demonstrate that most accidents involving pipelines are caused by improper actions of third parties. The expansion of sugar cane crops and the improvements in utilities, such as telephone, electricity, water and sewage services in the cities along the pipeline have increased the number of events of interference in the right-of-way. These facts have evidenced the need for creating a Plan of Communications and Relationship with landowners and neighboring communities to assure the continuous monitoring of the Bolivia-Brazil Pipeline right-of-way. The Plan of Communications and Relationship with Communities is designed to reduce the risk of accidents caused by the improper action of third parties. The strategy of action is focused on strengthening the relationships among the right-of-way technical staff, TBG subcontractors, and other publics affected by the pipeline. It also encourages the use of the toll-free Gas Hotline (0800 026 0400) - TBG main communication channel with communities. The intensive publicity targeted at specific audiences ensures that local populations and other relevant publics raise their awareness on the importance of preserving the right-of-way, and the precautions that must be taken in their neighborhoods, mainly in cases of interferences, such as urban improvement projects and farming activities by keeping permanent contact with TBG through the Gas Hotline. This work will also present the interfaces among the right-of-way technical staff, the corporate communications team, and specific target audiences; communication resources, guidelines, technical training programs, Gas Hotline monitoring and management plans, indicators of services provided to the communities and landowners, and the results of the Gas Pipeline Management Program.

Application of Geotechnical Criteria for the Occurrence of Earth Flows (Avalanches) on the Right of Way of Pipeline Transportation System of Camisea in the Coast Zone of Peru

2017 ◽  
Author(s):  
Francisco Oliveros ◽  
Emilio Hernández ◽  
Guillermo Soto
Keyword(s):  
Natural Gas ◽  
Transportation System ◽  
Management Program ◽  
Risk Level ◽  
Mass Movements ◽  
Pipeline Transportation ◽  
Nazca Plate ◽  
Right Of Way ◽  
Peruvian Coast ◽  
The Right

The Camisea’s Pipeline Transportation System (PTS) in Peru, owned by Transportadora de Gas del Perú (TgP) and operated by Compañía Operadora de Gas del Amazonas (COGA), stars in the Amazon rainforest, crosses the Andes Mountain (4850masl) and descends finally towards the coast of the Pacific. The PTS has more than 10 years of operation and it has two pipelines: one transports Natural Gas (NG) and the other Natural Gas Liquids (NGL) pipelines. The NG pipeline has a length of 864km including a Loop pipeline of 135km. The NGL pipeline has a length of 557km. Because of particular physiographic conditions of each geographic sector that cross the right-of-way (ROW), the integrity of the PTS acquires a level of significant susceptibility to the occurrence of geohazard, which are the product of natural erosive processes and mass movements. In the coast sector, one of the most representative processes of geotechnical instability is the soil or debris flow (mass movements of soils). The occurrence of this type of flow has a greater incidence in the torrential creek, which generate transport of large volumes of sediments during rainy seasons. The flow has destructive effects and therefore, it is necessary to analyze the geomorphological, geological and hydrological aspects of the main creek and rivers that crosses the ROW with the objective of maintaining the integrity of the pipelines. In Peru, the flows are associated and known as Huayco or Huaico. As an additional component, it is highlight that the Peruvian coast is located within the area of interaction between the South American Continental Plate and the Nazca Plate, where there is evidence of seismic activity with different magnitude that influence on the occurrence of geo-dynamic processes with certain periods of frequency that could change the terrane’s morphology. The current article describes technical aspects of identification, intervention, monitoring, and geotechnical control in sub-fluvial crossings with levels of potential damage to the geohazard defined as huayco in the integrity management program of PTS. This activity include 63 main sub-fluvial crosses, approximately 30% are of the seasonal flow regime, located in the coast zone; at the same time, these are tributary to main rivers of constant flow as is the case of the Pisco, Cañete and Mala rivers. In this paper, it is place a special emphasis on the fourth crossing of the Huáncano creek, because it is a place of potential impact in the occurrence of soil flows. Within the annual geotechnical maintenance of the sub-fluvial crosses, in the part of the Peruvian coast, for the operation of the PTS of TgP, bed and banks protection some works are implemented, such as: Check dams, re-channeling, levees and stone riprap (Stone armour). Likewise, a program of evaluation and technical inspection is develop: it includes the analysis of the expected levels of undermining and performance condition of the existing works, which allow defining the geotechnical intervention in a term according to the identified risk level. All in all framed within a process of permanent geotechnical monitoring of the right of way. Finally, it is highlighted that to date the application of the process described above has been continued, which has facilitated the development and continuous assessment of the risk condition by huaycos in the PTS of TgP. This program has maintained an operation with an acceptable level of risk in the areas of interest and avoiding problems and consequences of great impact to communities, the environment and the operation of the system.

ANALYSIS OF REGULATIONS REGARDING THE SETTLEMENT OF ISSUES ON THE REMOVAL AND RECOVERY OF PLANTATIONS IN THE RIGHT-OF-WAY OF PUBLIC ROADS

2020 ◽  
pp. 55-60
Author(s):  
Nataliia Kharytonova ◽  
Olha Mykolaienko ◽  
Tetyana Lozova
Keyword(s):  
Traffic Safety ◽  
Climatic Factors ◽  
Visual Orientation ◽  
Right Of Way ◽  
Adverse Weather ◽  
Overhead Power Lines ◽  
The Right ◽  
Neck Diameter ◽  
Proper Operation

Greening of roads contributes to the protection of roads and their elements from influence of adverse weather and climatic factors; it includes the measures for improvement and landscaping of roads, ensures the protection of roadside areas from transport pollution, provides visual orientation of drivers. The solution of these issues will ensure creation and maintenance of safe and comfortable conditions for travelers. Green plantings in the right-of-way road area include woody, bushy, flower and grass vegetation of natural and artificial origin. For proper operation of public roads and satisfaction of other needs of the industry, there may be the need in removing the greenery. The reason for the removal of greenery in the right-of-way road area may be due to the following factors: construction of the architectural object, widening of the motor road, repair works in the security zone of overhead power lines, water supply, drainage, heating, telecommunications facilities, cutting of hazardous, dry and fautal trees, as well as self-grown and brushwood trees with a root neck diameter not exceeding 5 cm, elimination of the consequences of natural disasters and emergencies. The removal of plantations in the right-of-way area is executed in order to ensure traffic safety conditions and to improve the quality of plantations composition and their protective properties. Nowadays, in Ukraine there is no clear procedure for issuing permits for removing of such plantations. In order to resolve this issue, there is a need in determining the list of regulations in the area of forest resources of Ukraine and, if needed, the list of regulatory acts that have to be improved; to prepare a draft of the regulatory legal act that would establish the procedure of plantations cutting, the methodology of their condition determination, recovery costs determination, the features of cutting. Keywords: plantations, cutting, right-of-way, woodcutting permit, order.

Yielding the Right of Way: An Informal Look

1985 ◽  
Vol 61 (1) ◽  
pp. 222-222
Author(s):  
John Trinkaus
Keyword(s):  
Right Of Way ◽  
The Right

A Hazard and Risk Management System for Large Rock Slope Hazards Affecting Pipelines in Mountainous Terrain

2002 ◽  
Author(s):  
Michael Porter ◽  
Alex Baumgard ◽  
K. Wayne Savigny
Keyword(s):  
Risk Management ◽  
Rock Slope ◽  
Management Program ◽  
South American ◽  
Mountainous Terrain ◽  
Hazard Exposure ◽  
Access Road ◽  
Hazard And Risk ◽  
The Right ◽  
Hazard Rating

Pipelines and other linear facilities that traverse mountainous terrain may be subject to rock fall and rock slide hazards. A system is required to determine which sites pose the greatest hazard to the facility. Once sites are ranked according to hazard exposure, a risk management program involving inspection, monitoring, contingency planning and/or mitigation can be implemented in a systematic and defensible manner. A hazard rating methodology was developed to identify and characterize rock slope hazards above a South American Concentrate Pipeline, and to provide a relative ranking of hazard exposure for the pipeline, an access road and operational personnel. The rating methodology incorporates the geometry of the right-of-way, estimated pipe depth, staff and vehicle occupancy time, failure mechanism and magnitude, and the annual probability of hazard occurrence. This information is used in a risk-based framework to assign relative hazard ratings within rock slope sections of relatively uniform hazard exposure. This paper outlines a general framework for natural hazard and risk management along linear facilities, describes the rock slope hazard rating methodology, and illustrates how the system was applied along a South American Concentrate Pipeline.

Evaluating and Improving Locomotive Crashworthiness Using LS-DYNA

2000 ◽  
Author(s):  
Stephen J. Kokkins ◽  
S. Kash Kasturi ◽  
Wayne Kong ◽  
S. K. John Punwani
Keyword(s):  
Finite Element ◽  
Structural Design ◽  
Structural Models ◽  
Structural Behavior ◽  
Right Of Way ◽  
Dynamic Finite Element ◽  
Rail Vehicles ◽  
Linear Material ◽  
The Right ◽  
Modeling Code

Abstract Representative structural models of locomotives, other rail vehicles, and other potential colliding objects were combined into moving consists which were then subjected to various collision scenarios. The LS-DYNA dynamic finite-element modeling code was utilized to realistically simulate collisions and guide understanding and improvements of the locomotive structures. This incorporated the effects of the collision interactions, plus critical non-linear material and structural behavior, buckling, fracture, kinematics, and wayside interactions of the vehicles. The types of collisions included: locomotive-headed consists striking standing consists obliquely fouling the Right Of Way, headed both by freight cars and other locomotives; locomotives striking loose, loaded intermodal containers dislodged from opposing cars on adjacent track. Work on multiple coupled locomotive overrides in direct consist collisions is now being conducted. The effects of varying parameters such as collision speeds, location and orientation of the colliding vehicles, and structural improvements were explored and quantified. Also, the effects of some structural design modifications such as stronger collision posts and cab structure were evaluated using this process. Verification studies to date have shown good correlation between the analytical simulations and observed outcome of actual historical accidents.

Slope Movement Inspection Using Axial Strain Data Across Multiple Lines and Repeat Inspections

2020 ◽  
Author(s):  
Mohamed ElSeify ◽  
Sylvain Cornu ◽  
Raymond Karé ◽  
Ali Fathi ◽  
John Richmond
Keyword(s):  
Axial Strain ◽  
Management Program ◽  
Additional Tool ◽  
Landslide Event ◽  
Strain Data ◽  
Risk Management Program ◽  
Geohazard Risk ◽  
Strain Responses ◽  
Repeated Runs

Abstract Axial strain inspection using the AXISS™ is an established tool in the pipeline operator’s toolbox to assess pipeline geotechnical threats and other strain related events. Consequently, there is a large database of axial strain data for several different pipelines operating in different environments and from multiple inspections at the same geographical locations. The Cheecham slope, located south east of Fort McMurray, Alberta, is a known geohazard site crossed by six individual pipelines. The lines were constructed between 1999 and 2013 and have a size range of 10” to 36”. Five out of the six lines, 12” to 36”, have been inspected using the axial strain tool. The pipelines inspected cover a range of characteristics including, different vintages, pipe diameters and positions in the ROW. These differences, and the ILI runs provide an insight into the effect of a landslide event on the strain response of these pipelines. Axial strain measurement of the multiple pipelines in the Cheecham slope’s ROW allows: i) a direct comparison between lines ii) evaluation of the strain profile across the slope iii) assessment of the magnitude of the axial strain in terms of pipe characteristics e.g. pipe vintage and mechanical properties. More importantly, the axial strain data may provide an additional tool to assess the effectiveness of strain mitigation steps carried out over the years. An increase in the frequency of axial strain ILI runs resulted in additional data being available and more importantly data from run to run inspections spread over months or sometime years. A single run captures the strain at the time of inspection but run to run inspections provide an additional comparative tool to evaluate and monitor pipeline movement. Two out of the five lines inspected have run to run axial strain data. This paper takes the Cheecham slope as a case study to discuss the benefits of run comparison of ILI axial strain data either by comparing strain values of repeated runs for a single line or by the cross comparison of strain responses of different lines in the same ROW. The paper aims to demonstrate how run to run analysis of ILI axial strain data can be implemented as part of geohazard risk management program to asses strain risk profiles of these locations and to assess the effectiveness of strain mitigation programs previously undertaken by operators.

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