Power Substation Construction and Ventilation System Co-Designed Using Particle Swarm Optimization
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Resurrection from Bunkers and Data Centers Adam Fish and Bradley L
Resurrection from Bunkers and Data Centers Adam Fish and Bradley L. Garrett Abstract Bunkers are imposing physical objects that reveal surprising insights into how humans attempt to control time. This brief article investigates how concepts of time are structured through the architectural form by comparing two types: bunkers built to preserve human life and bunkers built to preserve data, or data centers. Though these two bunkers differ in what they seek to protect, each hinges on resurrection. In other words, the success of the bunker requires the emergence of its contents (people and/or data) at some point in the future. Where emergence is premature or never takes place, the temporality of the bunker is interrupted, rendering its materiality moot; unplanned interruptions may have serious consequences for life and death. Introduction: Materiality → Temporality ‘If our planet remains a self-sustaining environment, how nice for everyone and how bloody unlikely,’ she said. ‘Either way, the subterrane is where the advanced model realizes itself. This is not submission to a set of difficult circumstances. This is simply where the human endeavor has found what it needs.’ -Don Delillo (2016: 339) The bunker is a securitized storage space that bodies, objects, and materialized information enter in defense against anticipated threat. The mountain or cliff cave was humanity’s prehistoric bunker - a geological gift of sanctuary - where our ancestors lived, stored food, and buried their dead. Bunker development, from excavation and underground construction, co-evolved with agricultural sedentarism to protect grain, living people, and stored riches, with these bunkers always outliving their harboured artifacts, and the people who built them. -
Fire Service Features of Buildings and Fire Protection Systems
Fire Service Features of Buildings and Fire Protection Systems OSHA 3256-09R 2015 Occupational Safety and Health Act of 1970 “To assure safe and healthful working conditions for working men and women; by authorizing enforcement of the standards developed under the Act; by assisting and encouraging the States in their efforts to assure safe and healthful working conditions; by providing for research, information, education, and training in the field of occupational safety and health.” This publication provides a general overview of a particular standards- related topic. This publication does not alter or determine compliance responsibilities which are set forth in OSHA standards and the Occupational Safety and Health Act. Moreover, because interpretations and enforcement policy may change over time, for additional guidance on OSHA compliance requirements the reader should consult current administrative interpretations and decisions by the Occupational Safety and Health Review Commission and the courts. Material contained in this publication is in the public domain and may be reproduced, fully or partially, without permission. Source credit is requested but not required. This information will be made available to sensory-impaired individuals upon request. Voice phone: (202) 693-1999; teletypewriter (TTY) number: 1-877-889-5627. This guidance document is not a standard or regulation, and it creates no new legal obligations. It contains recommendations as well as descriptions of mandatory safety and health standards. The recommendations are advisory in nature, informational in content, and are intended to assist employers in providing a safe and healthful workplace. The Occupational Safety and Health Act requires employers to comply with safety and health standards and regulations promulgated by OSHA or by a state with an OSHA-approved state plan. -
Underground Mining Methods and Equipment - S
CIVIL ENGINEERING – Vol. II - Underground Mining Methods and Equipment - S. Okubo and J. Yamatomi UNDERGROUND MINING METHODS AND EQUIPMENT S. Okubo and J. Yamatomi University of Tokyo, Japan Keywords: Mining method, underground mining, room-and-pillar mining, sublevel stoping, cut-and-fill, longwall mining, sublevel caving, block caving, backfill, support, ventilation, mining machinery, excavation, cutting, drilling, loading, hauling Contents 1. Underground Mining Methods 1.1. Classification of Underground Mining Methods 1.2. Underground Operations in General 1.3. Room-and-pillar Mining 1.4. Sublevel Stoping 1.5. Cut-and-fill Stoping 1.6. Longwall Mining 1.7. Sublevel Caving 1.8. Block Caving 2. Underground Mining Machinery Glossary Bibliography Biographical Sketches Summary The first section gives an overview of underground mining methods and practices as used commonly in underground mines, including classification of underground mining methods and brief explanations of the techniques of room-and-pillar mining, sublevel stoping, cut-and-fill, longwall mining, sublevel caving, and block caving. The second section describes underground mining equipment, with particular focus on excavation machinery such as boomheaders, coal cutters, continuous miners and shearers. 1. UndergroundUNESCO Mining Methods – EOLSS 1.1. Classification of Underground Mining Methods Mineral productionSAMPLE in which all extracting operations CHAPTERS are conducted beneath the ground surface is termed underground mining. Underground mining methods are usually employed when the depth of the deposit and/or the waste to ore ratio (stripping ratio) are too great to commence a surface operation. Once the economic feasibility has been verified, the most appropriate mining methods must be selected according to the natural/geological conditions and spatial/geometric characteristics of mineral deposits. -
Reasonable Paths of Construction Ventilation for Large-Scale Underground Cavern Groups in Winter and Summer
sustainability Article Reasonable Paths of Construction Ventilation for Large-Scale Underground Cavern Groups in Winter and Summer Jianchun Sun 1, Heng Zhang 1,2,*, Muyan Huang 3, Qianyang Chen 1 and Shougen Chen 1 1 Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; [email protected] (J.S.); [email protected] (Q.C.); [email protected] (S.C.) 2 School of Engineering, University of Warwick, Coventry CV4 7AL, UK 3 Institute of Foreign Languages, Sichuan Technology and Business University, Meishan 620000, China; [email protected] * Correspondence: [email protected]; Tel.: +86-028-8763-4386 Received: 19 September 2018; Accepted: 15 October 2018; Published: 18 October 2018 Abstract: Forced ventilation or newly built vertical shafts are mainly used to solve ventilation problems in large underground cavern groups. However, it is impossible to increase air supply due to the size restriction of the construction roadway, resulting in ventilation deterioration. Based on construction of the Jinzhou underground oil storage project, we proposed both a summer ventilation scheme and winter ventilation scheme, after upper layer excavation of the cavern is completed and connected with the shaft. A three-dimensional numerical model validated with field test data was performed to investigate air velocity and CO concentration. Fan position optimization and the influence of temperature difference on natural ventilation were discussed. The results show that CO concentration in the working area of the cavern can basically drop to a safe value of 30 mg/m3 in air inlet and exhaust schemes after 10 min of ventilation. -
ATP 3-21.51 Subterranean Operations
ATP 3-21.51 Subterranean Operations 129(0%(5 2019 DISTRIBUTION RESTRICTION: Approved for public release; distribution is unlimited. This publication supersedes ATP 3-21.51, dated 21 February 2018. Headquarters, Department of the Army This publication is available at the Army Publishing Directorate site (https://armypubs.army.mil), and the Central Army Registry site (https://atiam.train.army.mil/catalog/dashboard) *ATP 3-21.51 Army Techniques Publication Headquarters No. 3-21.51 Department of the Army Washington, DC, 1RYHPEHr 2019 Subterranean Operations Contents Page PREFACE..................................................................................................................... v INTRODUCTION ........................................................................................................ vii Chapter 1 SUBTERRANEAN ENVIRONMENT ......................................................................... 1-1 Attributes of a Subterranean System ........................................................................ 1-1 Functionality of Subterranean Structures .................................................................. 1-1 Subterranean Threats, Hazards, and Risks .............................................................. 1-2 Denial and Deception ................................................................................................ 1-6 Categories of Subterranean Systems ....................................................................... 1-9 Construction of Subterranean Spaces and Structures ........................................... -
Drilled Shaft Construction at Crownpoint, New Mexico
DRILLED SHAFT CONSTRUCTION AT CROWNPOINT, NEW MEXICO by Hassell E. Hunter Senior Staff Engineer Production Engineering Services Conoco Inc., Houston, Texas ABSTRACT The Wyoming Mineral-Conoco Crownpoint Project represents the rirst time that big bole drilling has been exclusively used to develop totally a privately financed mine below a depth of 1000 feet. Three shafts, one ten feet in diameter and two six feet in diameter, were successfully drilled to depths of 22431, 2188' and 2188' respectively and cased with hydrostatic designed steel casing. The largest shaft is to be used to handle muck and water from station excavation and enlargement of the other two shafts. A reverse circulation system with potassium chloride base mud was used for drilling. The mud was cleaned by settling in steel lined tanks With assistance by cyclone type separators. Deviation was monitored by gyroscopic surveying at 30 foot intervals and did not exceed 16 inches off plumb. Casing was designed to withstand hydrostatic pressures with a 1.5 safety factor to the large shaft and 1.25 safety. factor for the smaller Shafts. All casing welds were x-ray tested prior to lowering the casing in the hole. Cementing the annular space completed the operation. The total time to mobilize, drill and move off the three shafts was 363 days. The drilling operation was completed ahead of schedule and under budget. INTRODUCTION The Crownpoint Project is a joint venture between Wyoming Mineral Corporation and Conoco Inc. The operator of the Crownpoint Project is Conoco Inc. Reference hereafter to the Crownpoint Project is intended to mean the joint venture in this paper. -
An Integrated Approach to Climate Adaptation at the Chicago Transit Authority
An Integrated Approach to Climate Adaptation at the Chicago Transit Authority AUGUST 2013 FTA Report No. 0070 Federal Transit Administration PREPARED BY Chicago Transit Authority TranSystems COVER PHOTO Courtesy of AAA Engineering DISCLAIMER This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or use thereof. The United States Government does not endorse products of manufacturers. Trade or manufacturers’ names appear herein solely because they are considered essential to the objective of this report. An Integrated Approach to Climate Adaptation at the Chicago Transit Authority AUGUST 2013 FTA Report No. 0070 PREPARED BY Chicago Transit Authority TranSystems SPONSORED BY Federal Transit Administration Office of Research, Demonstration and Innovation U.S. Department of Transportation 1200 New Jersey Avenue, SE Washington, DC 20590 AVAILABLE ONLINE http://www.fta.dot.gov/research Metric Conversion Table SYMBOL WHEN YOU KNOW MULTIPLY BY TO FIND SYMBOL LENGTH in inches 25.4 millimeters mm ft feet 0.305 meters m yd yards 0.914 meters m mi miles 1.61 kilometers km VOLUME fl oz fluid ounces 29.57 milliliters mL gal gallons 3.785 liter L ft3 cubic feet 0.028 cubic meters m3 yd3 cubic yards 0.765 cubic meters m3 NOTE: volumes greater than 1000 L shall be shown in m3 MASS oz ounces 28.35 grams g lb pounds 0.454 kilograms kg megagrams T short tons (2000 lb) 0.907 Mg (or “t”) (or “metric ton”) TEMPERATURE (exact degrees) o 5 (F-32)/9 o F Fahrenheit Celsius C or (F-32)/1.8 FEDERAL TRANSIT ADMINISTRATION ii REPORT DOCUMENTATION PAGE Form Approved OMB No. -
Chapter 3: Construction Methods and Activities
Chapter 3: Construction Methods and Activities 3.1 INTRODUCTION This chapter describes the construction methods and activities for the Hudson Tunnel Project’s Preferred Alternative. The Preferred Alternative has two overarching components: (1) the construction of a new trans-Hudson tunnel (the Hudson River Tunnel) and associated surface and rail system improvements; and (2) the rehabilitation of the existing North River Tunnel. To ensure that the passenger rail system continues to operate at existing service levels during construction, the new tunnel would be constructed and put into operation before the rehabilitation of the North River Tunnel occurs. The Project Sponsor that will advance the Project through final design and construction, including compliance with mitigation measures, has not yet been identified. The Project Sponsor may include one or more of the Port Authority of New York & New Jersey (PANYNJ), the National Railroad Passenger Corporation (Amtrak), New Jersey Transit Corporation (NJ TRANSIT), and/or another entity that has not yet been determined. This chapter provides an overview of the likely construction methods that would be used for the Preferred Alternative, a discussion of locations where construction would occur, and a description of the potential sequencing and schedule for construction. For the new Hudson River Tunnel, this includes construction of surface tracks in New Jersey from Secaucus to the new tunnel portal in North Bergen; a new tunnel consisting of two tracks in two separate tubes beneath the Palisades, the Hudson River, and the waterfront area in Manhattan; and track modifications near Penn Station New York (PSNY) in Manhattan; and construction of ventilation shafts and fan plants in both Hoboken and Manhattan.1 The rehabilitation of the North River Tunnel includes conventional demolition and construction methods to replace tunnel elements and rail systems. -
Cold War Bunker, Worsley
Archaeological Building Survey: Worsley New Hall Cold War Bunker, Worsley. Final Version. Client: Peel Investments (North) Ltd. Technical Report: Dr Michael Nevell & Charlotte Vance Report No: 02/2012 © CfAA: Archaeological Building Survey: Concrete Bunker, Worsley. January 2012 (2) Page 1 Contents Summary 3 1. Introduction 4 2. Historical Background 6 3. Building Description 7 4. Discussion 12 5. Sources 15 Appendix 1: Photographic catalogue 17 Appendix 2: Illustrations 23 © CfAA: Archaeological Building Survey: Concrete Bunker, Worsley. January 2012 (2) Page 2 Summary The Centre for Applied Archaeology was commissioned by Peel Investments (North) Ltd to undertake a Level 2 Building Survey of the Cold War Bunker at Worsley New Hall, Worsley, M28 2LJ. The survey work was carried out in November 2011 by Vicky Nash, Brian Grimsditch and Matthew Bishop. A concrete bunker was constructed by the War Office in 1951 as an Anti Aircraft Operations Room (AAOR). In 1958 the Bunker became redundant and was used by the Royal Navy as a food store until the early 1960s. In 1961 the Bunker was purchased by Salford Corporation and used as a joint area control centre with Lancashire County Council. However, after the disbanding of the Civil Defence Corps in 1968 the building was handed over to the Greater Manchester Fire Service and in 1985 leased a local gun club who used the site as a shooting range until 2000 when it purchased by Peel Investments (North) Ltd. The building was empty at the time of the current survey and due to extensive vandalism both entrances have now been blocked. -
Talking to the Future
MFA Interaction Design Degree Project by Henrike Feckenstedt Talking to the Future - about Radioactivity Understanding radioactivity through everyday product interactions “The cities have forgotten the earth and will rot at heart till they remember again.” Wendell Berry, 1969, in a letter to Ed McClanahan and Gurney Norman in California Abstract Talking to the Future - about Radioactivity Understanding radioactivity through everyday product interactions. Nuclear waste remains radioactive for thousands of years. Burying it underground in an enormous repository, called Onkalo, surrounded and secured by solid rock is the long-term solution Finnish authorities implement right now. Once the repository is filled up, it will be locked up forever and never opened again. At the same time three new nuclear power plants are built. Out of Sight, out of Mind? Ultimately, this raises questions: Can this be the solution for final disposal of nuclear waste? How do we understand a problem clearly exceeding our capabilities as human beings? How do we deal with the dilemmas of uncertainty, invisibility, time, demand, possible contamination, and our individual responsibility as human beings? Understanding Through Interaction I designed three everyday products, a lamp, a piggy bank for children, and a pregnancy test, that afford a familiar everyday action on one hand, while exposing a dilemma related to Onkalo on the other. In doing so, the artifacts make those dilemma tangible and facilitate understanding and critical thinking. Sharing a personal experience, -
HANDBOOK for BUILDING a ROOT CELLAR Sustainable Heritage Report No
HANDBOOK FOR BUILDING A ROOT CELLAR Sustainable Heritage Report No. 8 Traditional Wooden and Masonry Structures in the Baltic Sea Region Sustainable Heritage reports, 1/2016 KIRSTI HORN, editor SERIE R: RAPPORTER, 4/2016 HANDBOOK FOR BUILDING A ROOT CELLAR Sustainable Heritage Report No. 8 Traditional Wooden and Masonry Structures in the Baltic Sea Region Sustainable Heritage reports, 1/2016 KIRSTI HORN, editor SUMMARY SVENSK SAMMANFATTNING (SUMMARY IN SWEDISH) The need and technique of storing foodstuffs varied tra- Behovet och sättet att lagra livsmedel har traditionellt vari- ditionally from one climate to another - but today we are erat beroende på klimatet, men idag är vi fria från de natur- free from the natural limits of seasons and harvesting times liga begränsningarna som väderleken och skördetider ställer thanks to all the modern electric appliances in every stand- tack vare de moderna elektriska apparater som är standardu- ard kitchen. However, the desire to live in harmony with na- trustning i dagens kök. Önskan att få leva i harmoni med na- ture and to eat healthy has reawakened the interest in tradi- turen och äta hälsosamt har åter väckt intresse för traditioner tions not only by the stove but also in the vegetable garden vid spisen, för grönsaksodling samt för att lagra produkter- and in storage buildings of the good old times. There is also na i lagerbyggnader enligt gammal sed. Det finns även en a growing worldwide trend to make new root cellars accord- världsomfattande trend att bygga nya jordkällare enligt be- ing to traditional principles. A perfectly good way of keeping prövade traditionella principer. -
Underground Production Scheduling Optimization with Ventilation Constraints
UNDERGROUND PRODUCTION SCHEDULING OPTIMIZATION WITH VENTILATION CONSTRAINTS by Andrea J. Brickey c Copyright by Andrea J. Brickey, 2015 All Rights Reserved A thesis submitted to the Faculty and the Board of Trustees of the Colorado School of Mines in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Mining and Earth Systems Engineering). Golden, Colorado Date Signed: Andrea J. Brickey Signed: Dr. Mark Kuchta Thesis Advisor Signed: Dr. Alexandra Newman Thesis Advisor Golden, Colorado Date Signed: Dr. Priscilla Nelson Professor and Head Department of Mining Engineering ii ABSTRACT Underground production scheduling has traditionally been a time-consuming, manual task in which the goal is to achieve corporate- or operation-defined production targets. This dissertation presents a generalized, mathematical formulation that results in a large- scale integer optimization model. The model maximizes discounted gold ounces mined and determines the optimal or near-optimal sequence of activities related to the development, extraction and backfilling of an underground mine. Constraints include physical precedence and resource capacities. The research uses data from an existing underground mine; how- ever, the model formulation has the ability to serve other underground mines with similarly structured data and provides the ability to customize constraints. Additionally, the model includes a constraint that treats available mine ventilation as a consumable resource. Diesel particulate matter, DPM, is a primary contaminant found