Ground subsidence definition

Ground subsidence means a process characterized by the downward displacement of surface ma- terial caused by natural phenomena such as removal of underground fluids, natural consolidation, or dissolution of underground minerals or by manmade phenomena such as underground mining.
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Examples of Ground subsidence in a sentence

  • Ground subsidence is the primary consideration for determining the appropriate pipeline abandonment option for highways, roads and railways.

  • This would include but not be limited to studies or research related to:• Ground subsidence and frost heave;• Soil and groundwater contamination;• Pipe cleanliness;• Road, railway and utility crossings;• Water crossings;• Erosion; and• Creation of conduits.

  • Ground subsidence has caused serious damage to local urban infrastructures such as road and water streams.

  • These include: Ground subsidence, potential rock fall, fault or fault zone, unstable slopes, slope failure complex, landslide,mudflow, and earthflow.1. Locate all residential structures outside of hazard areas as necessary to eliminate impacts to hazard areas.

  • Ground subsidence may adversely affect aquifer water storage capacity permanently.

  • As discussed above, different areas within the City of San José’s sphere of influence are subject to one or more of the following soils and geologic conditions, which can impact proposed development throughout San José: ▪ Landslides▪ Weak/expansive soils▪ Naturally-occurring asbestos▪ Erosion▪ Artificial fill▪ Ground subsidence due to ground water removal Current General Plan policies addressing these hazards are presented in the “Regulatory Setting” section below.

  • As stated in the Introduction, exfiltration causes reduced flows in the sewerage system, due to leaks and outflows from faults in the fabric of the system.Exfiltration in sewer systems can cause many problems, including:• Contamination of surrounding soils• Pollution of groundwater, aquifers and receiving waters• Failure of pipelines and structures due to erosion of supports• Ground subsidence due to erosion of underground soils.

  • Ground subsidence occurrence areas were detected in the study site by interpretation field surveys.Using the detected ground subsidence locations and the constructed spatial database, ground subsidence hazard analysis methods were applied and validated.

  • Ground subsidence rates range from 5.5 to 6 centimeters per year.1Subsidence does not cause sea levels to rise.

  • Ground subsidence and movement processes are time- dependent, thus it is of great importance to select a proper time function to analyse the mining surface dynamic subsidence and movement.

Related to Ground subsidence

  • Subsidence means the lowering in elevation of the surface of land by the withdrawal of groundwater.

  • Underground mining means all methods of mining other than surface mining.

  • Underground storage tank or “UST” means any one or combination of tanks (including underground pipes connected thereto) that is used to contain an accumulation of regulated substances, and the volume of which (including the volume of underground pipes connected thereto) is 10 percent or more beneath the surface of the ground. This term does not include any:

  • Green infrastructure means a stormwater management measure that manages stormwater close to its source by:

  • Underground storage means storage of gas in a subsurface stratum or formation of the earth.

  • Floodplain Development Permit means any type of permit that is required in conformance with the provisions of this ordinance, prior to the commencement of any development activity.

  • Underground storage tank system means an underground storage tank and the connected underground piping, underground ancillary equipment, and containment system, if any.

  • Sinkhole means a surface depression caused by a collapse of soil or overlying formation above fractured or cavernous bedrock.

  • existing industrial building means a building used for or in connection with,

  • Wildland means an area where development is generally limited to roads, railroads, power lines, and widely scattered structures. Such land is not cultivated (i.e., the soil is disturbed less frequently than once in 10 years), is not fallow, and is not in the United States Department of Agriculture (USDA) Conservation Reserve Program. The land may be neglected altogether or managed for such purposes as wood or forage production, wildlife, recreation, wetlands, or protective plant cover.

  • Underground tank means a device meeting the definition of tank whose entire surface area is totally below the surface of and covered by the ground.

  • Environmental Policy means to conserve energy, water, wood, paper and other resources, reduce waste and phase out the use of ozone depleting substances and minimise the release of greenhouse gases, volatile organic compounds and other substances damaging to health and the environment, including any written environmental policy of the Customer;

  • Landslide means episodic down slope movement of a mass of soil or rock that includes, but is not limited to, rock falls, slumps, mudflows, and earth flows.

  • Water surface elevation means the height, in relation to the National Geodetic Vertical Datum (NGVD) of 1929, the North American Vertical Datum (NAVD) of 1988, or other datum, where specified, of floods of various magnitudes and frequencies in the floodplains of riverine areas.

  • Ground water means water below the land surface in a zone of saturation.

  • Earthquake insurance, if the Leased Property is currently, or at any time in the future, located within a major earthquake disaster area, in amount, and in such form and substance and with such limits and deductibles as are satisfactory to Landlord; and

  • Flooding means a volume of water that is too great to be confined within the banks or walls of the stream, water body, or conveyance system and that overflows onto adjacent lands, thereby causing or threatening damage.

  • Plant means the machinery and apparatus intended to form or forming part of the Works.

  • Transportation project or "project" means any or the

  • Underground area means an underground room, such as a basement, cellar, shaft or vault, providing enough space for physical inspection of the exterior of the tank situated on or above the surface of the floor.

  • Water Surface Elevation (WSE means the height, in relation to NAVD 1988, of floods of various magnitudes and frequencies in the floodplains of riverine areas.

  • Governmental Real Property Disclosure Requirements means any Requirement of Law of any Governmental Authority requiring notification of the buyer, lessee, mortgagee, assignee or other transferee of any Real Property, facility, establishment or business, or notification, registration or filing to or with any Governmental Authority, in connection with the sale, lease, mortgage, assignment or other transfer (including any transfer of control) of any Real Property, facility, establishment or business, of the actual or threatened presence or Release in or into the Environment, or the use, disposal or handling of Hazardous Material on, at, under or near the Real Property, facility, establishment or business to be sold, leased, mortgaged, assigned or transferred.

  • Vegetation means trees, shrubs, nursery stock and other vegetation and includes the limbs or growth of any Vegetation.

  • Capitol hill complex means the grounds and buildings within the area bounded by 300 North Street, Columbus Street, 500 North Street, and East Capitol Boulevard in Salt Lake City.

  • Infrastructure Improvements means a street, road, sidewalk, parking facility, pedestrian mall, alley, bridge, sewer, sewage treatment plant, property designed to reduce, eliminate, or prevent the spread of identified soil or groundwater contamination, drainage system, waterway, waterline, water storage facility, rail line, utility line or pipeline, transit-oriented development, transit-oriented property, or other similar or related structure or improvement, together with necessary easements for the structure or improvement, owned or used by a public agency or functionally connected to similar or supporting property owned or used by a public agency, or designed and dedicated to use by, for the benefit of, or for the protection of the health, welfare, or safety of the public generally, whether or not used by a single business entity, provided that any road, street, or bridge shall be continuously open to public access and that other property shall be located in public easements or rights-of-way and sized to accommodate reasonably foreseeable development of eligible property in adjoining areas. Infrastructure improvements also include 1 or more of the following whether publicly or privately owned or operated or located on public or private property:

  • Underground facility means any item which shall be buried or placed below ground for use in connection with the storage or conveyance of water, sewage, electronic, telephone or telegraphic communications, electric energy, oil, gas or other substances, and shall include, but not be limited to pipes, sewers, conduits, cables, valves, lines, wires, manholes, attachments and those portions of poles and their attachments below ground.