DOCSLIB.ORG

Sinkhole Commercial Brochure

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Sinkhole Commercial Brochure Filling the hole Sinkholes on Commercial Before you begin repairs, an evaluation needs to When solid rock is encountered near the surface omit be conducted to ensure that utility lines and sep- the bottom most layers (that is start with a smaller Industrial & tic systems are not affected. The Health Depart- stone size) or use thinner layers. It is important that ment may be able to assist. the bottom layer be larger than the solution channel Residential opening in the bedrock. The objective is to provide an open path for percolating water so that it cannot Property carry away soil and cause another sinkhole. The re- pair, as described, also provides good filtration of water. Fixing the structure The County will determine if the structure is safe enough to use. If you are advised not to enter the structure, you should comply. Your insurance agent will advise you regarding your coverage and options. A sinkhole is best repaired by excavating to rock Damage to structures will require an expert to evalu- then building an aggregate filter in the hole, how- ate the situation. You may want to contact a com- ever, our area has little rock. pany that does foundation repairs. 1. Excavate the sinkhole down to rock if possi- ble. Remove stumps and debris. Fixing the driveway or yard 2. Put a layer of large stones in the hole (cabbage size). The hole affecting the driveway will need to be repaired 3. Put a layer of smaller stones on top (fist before you can fix the driveway. size). 4. Put a layer of gravel on top of the small A sinkhole caused by a leaking or damaged drain, pipe stones. or culvert cannot be repaired until the situation that 5. Cover the gravel with a geotextile fabric. cause the sinkhole is resolved. This may affect more This prevents the next layer (sand) from be- than one property owner. These situations are difficult ing lost through the gravel. to resolve and may required legal assistance. 6. Cover the geotextile fabric with a layer of coarse sand. Where can I get more information on sinkholes? 7. Fill the remainder of the hole with soil. This Onslow County Emergency Management: Call during can be layered to match the existing soil pro- file. working hours: (910) 347-4270 or on the web: Ideally each layer is six inches to two feet thick. http://www.onslowcountync.gov/ What do I do when I discover a sinkhole on my property? • First and foremost: • If a public road is involved, contact the What does a sinkhole have to Ensure that life and property are local law enforcement authorities. They do with the groundwater safe. If a structure is involved and will help to secure the area. there appears to be structural supply? damage—vacate the building • Document with photographs. immediately and stay away until it Surface water that enters a sinkhole is examined. • Contact your insurance agent if passes directly into the groundwater structures are involved. with minimal filtration. In addition, • Move vehicles and equipment. waterborne contaminants that enter a • Continue to observe the sinkhole for sinkhole may be transported at a very • Secure the area with a fence, rope signs of enlarging, especially toward high rate of speed, meaning that they or tape. Keep children out of the structures, septic system drain fields, enter the groundwater quickly. area. waterlines, wells, buried tanks, and buried utility lines. This can be done by Do not put anything in the sinkhole • Contact the Onslow County using a thin metal or fiberglass rod that except for what is advised by experts. Emergency Management Center is pushed into the soil. Areas near the A sinkhole is not a dump. The water during normal business hours at sinkhole will offer less resistance to the supply or aquifer you contaminate (910)347-4270 They investigate rod than unaffected soil. Be aware of might be yours! all sinkholes that develop in the buried power lines when using a metal county and will further advise you rod! Do not apply fertilizer, pesticide or as to the type of sinkhole involved. other chemicals near the sinkhole. Sinkholes • Soil in and near an active sinkhole Direct water away from the sinkhole. can collapse without warning, so This may help keep it from getting lar- Primarykeep Businessa good Address distance away from ger. One way to do this is to create a Your Address Line 2 berm that is seeded with Bermuda or Yourthe Address opening. Line 3 You will be held Yourliable Address if Lineanyone 4 is hurt on your Fescue grass. property, so take proper precautions to secure the area. .
Load more

Recommended publications
  • Introduction to Virginia's Karst
    Introduction to Virginia’s Karst A presentation of The Virginia Department of Conservation and Recreation’s Karst Program & Project Underground Karst - A landscape developed in limestone, dolomite, marble, or other soluble rocks and characterized by subsurface drainage systems, sinking or losing streams, sinkholes, springs, and caves. Cross-section diagram by David Culver, American University. Karst topography covers much of the Valley and Ridge Province in the western third of the state. Aerial photo of karst landscape in Russell County. Smaller karst areas also occur in the Cumberland Plateau, Piedmont, and Coastal Plain provinces. At least 29 counties support karst terrane in western Virginia. In western Virginia, karst occurs along slopes and in valleys between mountain ridges. There are few surface streams in these limestone valleys as runoff from mountain slopes disappears into the subsurface upon contact with the karst bedrock. Water flows underground, emerging at springs on the valley floor. Thin soils over fractured, cavernous limestone allow precipitation to enter the subsurface directly and rapidly, with a minimal amount of natural filtration. The purer the limestone, the less soil develops on the bedrock, leaving bare pinnacles exposed at the ground surface. Rock pinnacles may also occur where land use practices result in massive soil loss. Precipitation mixing with carbon dioxide becomes acidic as it passes through soil. Through geologic time slightly acidic water dissolves and enlarges the bedrock fractures, forming caves and other voids in the bedrock. Water follows the path of least resistance, so it moves through voids in rock layers, fractures, and boundaries between soluble and insoluble bedrock.
    [Show full text]
  • Sinkhole Physical Models to Simulate and Investigate Sinkhole Collapses
    SINKHOLE PHYSICAL MODELS TO SIMULATE AND INVESTIGATE SINKHOLE COLLAPSES Mohamed Alrowaimi Doctoral Student, Civil, Environmental and Construction Engineering, University of Central Florida, 4000 Central Florida Blvd., Orlando, Florida, 32816, USA, [email protected] Hae-Bum Yun Assistant professor, Civil, Environmental and Construction Engineering, University of Central Florida, 4000 Central Florida Blvd., Orlando, Florida, 32816, USA, [email protected] Manoj Chopra Professor, Civil, Environmental and Construction Engineering, University of Central Florida 4000 Central Florida Blvd., Orlando, Florida, 32816, USA, [email protected] Abstract Introduction Florida is one of the most susceptible states for sinkhole Sinkhole is a ground surface depression that occurs with collapses due to its karst geology. In Florida, sinkholes or without any surface indication. Sinkholes commonly are mainly classified as cover subsidence sinkholes that occur in a very distinctive terrain called karst terrain. result in a gradual collapse with possible surface signs, This terrain mainly has a bedrock of a carbonate rocks and cover collapse sinkholes, which collapse in a sudden such as limestone, dolomite, or gypsum. Sinkholes and often catastrophic manner. The future development develop when the carbonate bedrocks are subjected of a reliable sinkhole prediction system will have to dissolution with time to form cracks, conduits, and the potential to minimize the risk to life, and reduce cavities in the underground bedrock. These features delays in construction due to the need for post-collapse allow the overburden soils (on top of the carbonate remediation. In this study, different versions of small- bedrock) to transport through them to the underground scale sinkhole physical models experimentally used cavities, which results in surface collapse due to the to monitor the water levels in a network of wells.
    [Show full text]
  • The Favorability of Florida's Geology to Sinkhole
    Appendix H: Sinkhole Report 2018 State Hazard Mitigation Plan _______________________________________________________________________________________ APPENDIX H: Sinkhole Report _______________________________________________________________________________________ Florida Division of Emergency Management THE FAVORABILITY OF FLORIDA’S GEOLOGY TO SINKHOLE FORMATION Prepared For: The Florida Division of Emergency Management, Mitigation Section Florida Department of Environmental Protection, Florida Geological Survey 3000 Commonwealth Boulevard, Suite 1, Tallahassee, Florida 32303 June 2017 Table of Contents EXECUTIVE SUMMARY ............................................................................................................ 4 INTRODUCTION .......................................................................................................................... 4 Background ................................................................................................................................. 5 Subsidence Incident Report Database ..................................................................................... 6 Purpose and Scope ...................................................................................................................... 7 Sinkhole Development ................................................................................................................ 7 Subsidence Sinkhole Formation .............................................................................................. 8 Collapse Sinkhole
    [Show full text]
  • Caves in New Mexico and the Southwest Issue 34
    Lite fall 2013 Caves in New Mexico and the Southwest issue 34 The Doll’s Theater—Big Room route, Carlsbad Cavern. Photo by Peter Jones, courtesy of Carlsbad Caverns National Park. In This Issue... Caves in New Mexico and the Southwest Cave Dwellers • Mapping Caves Earth Briefs: Suddenly Sinkholes • Crossword Puzzle New Mexico’s Most Wanted Minerals—Hydromagnesite New Mexico’s Enchanting Geology Classroom Activity: Sinkhole in a Cup Through the Hand Lens • Short Items of Interest NEW MEXICO BUREAU OF GEOLOGY & MINERAL RESOURCES A DIVISION OF NEW MEXICO TECH http://geoinfo.nmt.edu/publications/periodicals/litegeology/current.html CAVES IN NEW MEXICO AND THE SOUTHWEST Lewis Land Cave Development flowing downward from the surface. Epigenic A cave is a naturally-formed underground cavity, usually caves can be very long. with a connection to the surface that humans can enter. The longest cave in the Caves, like sinkholes, are karst features. Karst is a type of world is the Mammoth landform that results when circulating groundwater causes Cave system in western voids to form due to dissolution of soluble bedrock. Karst Kentucky, with a surveyed terrain is characterized by sinkholes, caves, disappearing length of more than 400 streams, large springs, and underground drainage. miles (643 km). The largest and most common caves form by dissolution of In recent years, limestone or dolomite, and are referred to as solution caves. scientists have begun to Limestone and dolomite rock are composed of the minerals recognize that many caves calcite (CaCO ) and dolomite (CaMg(CO ) ), which are 3 3 2 are hypogenic in origin, soluble in weak acids such as carbonic acid (H CO ), and are 2 3 meaning that they were thus vulnerable to dissolution by groundwater.
    [Show full text]
  • Cave Diving in Southeastern Pennsylvania
    The Underground Movement Volume 13, Number 11 CAVE DIVING IN SOUTHEASTERN PENNSYLVANIA November 2013 CAVE DIVING IN SOUTHEASTERN PENNSYLVANIA An Historical, Cultural, and Speleological Perspective of Bucks County — Danny A. Brass — Large portions of central and southern Pennsylvania are ipants than dry caving, cave diving still remains a global underlain by carbonate bedrock (primarily limestone and activity. Worldwide, a variety of cave-diving organiza- dolomite, but with smaller amounts of marble as well). tions can be found in areas rich in underwater caves. Ma- Over the course of geologic time, much of this bedrock jor cave-diving sites include the cenotes and tidal blue- has been exposed by gradual erosion of the overburden. holes of the Bahamas and Mexico’s Yucatán Peninsula, In combination with the abrasive activity of water-borne the vast underground rivers of Australia’s Nullarbor Plain sediments, the relentless action of weak acids (i.e., chemi- and the sinkholes of its unique Mt. Gambier region, the cal dissolution by acidic groundwater) on soluble car- sumps of Great Britain, and the rich concentration of bonate deposits, especially limestone, is a self- springs in Florida. Diving conditions vary greatly from accelerating process that has led to the development of one region to another. This is reflected in the many differ- broad areas of karst topography. A variety of surface and ences in training procedures, required equipment, under- subsurface geological features are characteristically asso- water protocols, and even diving philosophies, all of ciated with karstification; the presence of large numbers which have evolved in association with local diving con- of solution caves and sinkholes is common.
    [Show full text]
  • Understanding Zacaton: Exploration and Initial
    Karst Frontiers Gary 141 Karst WatersInstitute SpecialPublication 7 UNDERSTANDING ZACATON: EXPLORATION AND INITIAL INTERPRET A TION OF THE WORLDS DEEPEST KNOWN PHREATIC SINKHOLE AND RELATED KARST FEA TURES SOUTHERN T AMA ULIP AS, MEXICO Marcus Gary The University of Texasat Austin/ United StatesGeological Survey 8027 ExchangeDrive Austin, TX 78754 [email protected] A system of water-filled sinkholes (known as cenotes) this extreme karst system have taken place, and it has only exists in southern Tamaulipas, Mexico (Figure 1), and is been limited work within the past two years that theories the result of a unique combination of speleogenetic factors. relating to the speleogenesishave been formed. Microbial This system is composed of 18 different karst features that interaction seems likely to affect karstification processes, are on or near a large cattle ranch known as Rancho La and significant travertine structures appear to have a direct Azufrosa. Zacat6n, the deepest cenote in this system has influence on the hydraulic connectivity between the bodies been measured to over 350 meters deep, (Figure 1) and is of water. Years of future research are being planned to the site of the world-record SCUBA dive (284 meters) by document the extent of karstification in this deep Jim Bowden in 1994 (Gilliam, 1994). This makes it the hydrothermal system and interpret the geological history deepest known water-filled pit that has been explored by that has develope~ such an impressive example of humans in the world. No previous scientific studies of hypogenetic karst. Figure 1: Generalized cross section of the cenotes of Rancho La Azufrosa.
    [Show full text]
  • Final Report
    Biological Inventory of the Cave and Karst Systems of The Nature Conservancy’s Sharp-Bingham Mountain Preserve James Godwin Alabama Natural Heritage Program Environmental Institute Auburn University Auburn, AL 36849 ©Alan Cressler 1 Introduction Overview of Karst and Caves (adapted from Palmer 2007; White 2008) Karst is a landform or landscape with the characteristics of caves, sinkholes, subterranean streams, and springs. These topographical features have formed from the dissolution, rather than mechanical, eroding of the underlying bedrock. This dissolutional process is based on the actions of a weak carbonic acid solution reacting with the basic limestone. Raindrops, as they pass through the atmosphere, pick up carbon dioxide and form a weak carbonic acid solution. Limestone, a type of calcium carbonate, is easily dissolved by this mildly acidic water. Over time rainwater percolates along horizontal and vertical fissures and joints of the limestone bedrock and these joints and fissures gradually become widened and deepened, eventually coalescing into an underground drainage system of conduits. Caves formed by this process are termed solution caves. While the lifespan of a cave, from the initial phase of development to deterioration, may be on the order of tens of thousands to a few million years, geologically they are regarded as being transient. Cave “life history” can be divided into the following sequential phases: initiation, enlargement, stagnation, and destruction. Each phase in the life cycle of a cave presents new invasion and niche expansion opportunities for organisms associated with these subterranean features. During the phase of initiation, as water moves through a multitude of fissures dissolving bedrock, the smallest fissures of 10 to 50 micrometers wide are enlarged to widths of 5 to 10 millimeters.
    [Show full text]
  • Journal of Cave and Karst Studies
    March 2018 Volume 80, Number 1 JOURNAL OF ISSN 1090-6924 A Publication of the National CAVE AND KARST Speleological Society STUDIES DEDICATED TO THE ADVANCEMENT OF SCIENCE, EDUCATION, EXPLORATION, AND CONSERVATION Published By BOARD OF EDITORS The National Speleological Society Anthropology George Crothers http://caves.org/pub/journal University of Kentucky Lexington, KY Office [email protected] 6001 Pulaski Pike NW Huntsville, AL 35810 USA Conservation-Life Sciences Tel:256-852-1300 Julian J. Lewis & Salisa L. Lewis Lewis & Associates, LLC. [email protected] Borden, IN [email protected] Editor-in-Chief Earth Sciences Benjamin Schwartz Malcolm S. Field Texas State University National Center of Environmental San Marcos, TX Assessment (8623P) [email protected] Office of Research and Development U.S. Environmental Protection Agency Leslie A. North 1200 Pennsylvania Avenue NW Western Kentucky University Washington, DC 20460-0001 Bowling Green, KY [email protected] 703-347-8601 Voice 703-347-8692 Fax [email protected] Mario Parise University Aldo Moro Production Editor Bari, Italy Scott A. Engel [email protected] Knoxville, TN 225-281-3914 Exploration Paul Burger [email protected] National Park Service Eagle River, Alaska Journal Copy Editor [email protected] Linda Starr Microbiology Albuquerque, NM Kathleen H. Lavoie State University of New York Plattsburgh, NY [email protected] Paleontology Greg McDonald National Park Service Fort Collins, CO [email protected] Social Sciences Joseph C. Douglas The Journal of Cave and Karst Studies , ISSN 1090-6924, CPM Volunteer State Community College Number #40065056, is a multi-disciplinary, refereed journal pub- Gallatin, TN lished four times a year by the National Speleological Society.
    [Show full text]
  • Guide to Responsible Caving
    Published by the National Speleological Society Photo by Ryan Maurer 1 A Guide to Responsible Caving National Speleological Society 6001 Pulaski Pike Huntsville, AL 35810-1122 256-852-1300 • [email protected] www.caves.org Fifth Edition, 2016 Text: Cheryl Jones Design: Mike Dale/Switchback Design Photos: Selected from those accepted for show in the 2015 NSS Photo Salon Printing: Terry Raines Copies of this Guide may be obtained through the National Speleological Society website. www.caves.org © Copyright 2016, National Speleological Society FOREWORD aving can be a rewarding, safe, and fun activity when you are properly trained, equipped, and Cprepared. But there is more to being a “real” caver than having the correct skills and gear: you also must be a responsible caver. This means you show respect for the cave, and its challenges, environment, and creatures, as well as for cave owners and their property. This is critical to preserving the cave wilderness and keeping caves open to cavers for years to come. In this booklet, the National Speleological Society (NSS) provides an introduction to becoming a responsible caver. We hope these guidelines will help make your ventures underground safe and enjoyable, and pave the way for you to become a respected member of the caving community. I encourage you to join a local chapter of the NSS to develop your skills and knowledge with experienced cavers and speleologists, and become a part of the caving community. This is the fifth edition of my original booklet, A Guide to Responsible Caving. A special thank-you to my fellow cavers for their hard work and dedication: Cheryl Jones for revising and editing this publication and Michael Dale for the design and layout.
    [Show full text]
  • Sinkhole Information for Lake County Residents
    Sinkhole Information for Lake County Residents Sinkholes are a common naturally occurring geologic phenomenon and one of the predominant land forms in Florida. Many of the lakes in Florida are relic sinkholes. They are typically circular but can develop in other shapes depending on the soils and geology. Sinkholes can be classified as geologic hazards sometimes causing extensive damage to structures and roads resulting in costly repairs. Sinkholes can also threaten water supplies by draining unfiltered water from streams, lakes and wetlands directly into the aquifer (underground water supply). Some of the most asked questions about sinkholes are: What is a sinkhole? Sinkholes are depressions or holes in the land surface that occur throughout central Florida. They can be shallow or deep, small or large, but all are a result of the dissolving of the underlying limestone. Hydrologic conditions, including lack of rainfall, lowered water levels, or, conversely, excessive rainfall in a short period of time, can all contribute to sinkhole development. What does a sinkhole look like? Sinkholes can come in many different sizes and shapes. They range from shallow depressions a few inches deep and several feet across to giants that can swallow multiple houses. The sides of the sinkhole may be gently slopping or they may be vertical. There are generally three types of sinkholes. Limestone Solution Sinkholes – Along the western portion of Lake County, limestone is exposed at the surface or is covered by a thin layer of soil. This leaves the limestone subject to both physical and chemical processes that break down the rock. When this breakdown occurs, it usually forms a saucer or bowl-shaped depression.
    [Show full text]
  • Geologic History of New Hope Cave, Manitowoc County, Wisconsin
    Geologic History of New Hope Cave, Manitowoc County, Wisconsin John A. Luczaj ([email protected]) and Ronald D. Stieglitz ([email protected]) Department of Natural & Applied Sciences University of Wisconsin - Green Bay 2420 Nicolet Drive Green Bay, WI 54311 INTRODUCTION This article presents the preliminary results of an ongoing study of the geologic history of New Hope Cave in Cherney Maribel Caves County Park, Manitowoc County, Wisconsin. The sediments in the cave contain an important record of the events responsible for filling the cave, and may shed light on the geological processes operating on the surface. A brief introduction to the regional geology of northeastern Wisconsin is given here to help the reader place this research into a broader context. GEOLOGIC SETTING The bedrock of Northeastern Wisconsin is primarily composed of the sedimentary rocks dolostone, shale, and sandstone that were deposited during the first half of the Paleozoic Era between 540 and 350 million years ago (Figure 1). Most of these were deposited in warm shallow oceans when this part of North America was situated very near the equator, and at times when global sea level was episodically higher. The limestone deposited in those oceans was altered into a new type of magnesium-rich carbonate rock, known as dolostone (made from the mineral dolomite), by water- rock interaction processes early in their history (Luczaj, 2006). As a result, northeastern Wisconsin’s caves are hosted exclusively by dolostone. In total, up to 600 meters (~2,000 feet) of Paleozoic sedimentary rocks are preserved in the area Figure 1. Bedrock Geology of Wisconsin above the Precambrian basement showing the distribution of Paleozoic rocks.
    [Show full text]
  • Annual Report
    1985 ANNUAL REPORT c A v E R E s E A R c H F 0 u N D A T I 0 N Cave Research Foundation 1985 Annual Report Cave Research Foundation 1019 Maplewood Dr., No. 211 Cedar Falls, lA 50613 USA The Cave Research Foundation (CRF) is a nonprofit corporation formed in 1957 under the laws of the Commonwealth of Kentucky. Its purpose is to support scientific research related to caves and karst, to aid in the conservation of cave karst wilderness features, and to assist in the interpretation of caves through education. EDITOR Karen Bradley Lindsley EDITORIAL STAFF R. Pete Lindsley John C. Tinsley Cover Photo: A typical remipedian crustacean as found in anchialine caves in the Bahamas. This photo of a live, swimming remipede shows the characteristic raptorial feeding appendages and a trunk with many similar segments, each bearing a pair of biramous swimming appendages. See report on page 21. (Photo by Dennis W. Williams). Cave Research Foundation 1985 Annual Report. © 1986 by the Cave Research Foundation. Permission is granted to reproduce this material for scientific and educational use. For information write to the Cave Research Foundation, 1019 Maplewood Dr. No. 211, Cedar Falls, lA, 50613 USA. ISBN 0-939748-19-3 P~blished by CAVE BOOKS 756 Harvard Avenue St. Louis, MO 63130 USA CAVE CONSERVATION The caves in which we carry out our scientific work and exploration are natural, living laboratories. Without these laboratories, little of what is described in this Annual Report could be studied. The Cave Research Foundation is committed to the preservation of all underground resources.
    [Show full text]