Rapid drawdown definition

Rapid drawdown means removal of liquid from a reservoir at a rate that is significantly faster than the rate of drainage of the materials composing the portions of the reservoir exposed by the fluid removal.
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Examples of Rapid drawdown in a sentence

  • Rapid drawdown becomes a threat to the dike when the reservoir pool is drawn down or lowered at a rate significantly higher than the excess poor water pressure within the dike can dissipate.

  • Rapid drawdown of wastewater may leave the soil in the bank above the liquid level saturated, which may then lead to bank caving.

  • Rapid drawdown of the water level may be necessary for emergency purposes or to restore the available storage to accommodate subsequent storm events.

  • Steady seepage at emergency spillway crest 1.5 Rapid drawdown from principal spillway 1.2 Earthquake - reservoir at emergency spillway crest for downstream slope; reservoir at principal spillway for upstream slope 1.0 *The minimum factor of safety is calculated by the ratio of available shear strength to shear stress required for stable equilibrium.

  • Rapid drawdown is the rapid lowering of the water level of a reservoir which may precipitate slope failure due to residual high pore-water pressure in the embankment with a lack of counteracting pressure from the reservoir.

  • Rapid drawdown (up- stream slope) Zones of the embankment or layers of the foundation ex- pected to develop significant pore pressures during con- struction Embankment zones and/or strata not expected to develop significant pore pressures dur- ing construction Drawdown from the highest normal pool to the lowest gated outlet Low-permeability embankment soils should be tested at water contents that are as wet as likely during construction (usually wet of optimum).

  • Rapid drawdown (RDD) has long been recognized as one of the critical design conditions for the upstream or riverside slope of dams and levees.

  • Rapid drawdown over a sand soil is also investigated, and the location and time of the levee collapse occurrence are well captured.

  • Rapid drawdown could occur if there is a release of the impoundment waters at a rapid enough rate to prevent dissipation of the pore pressures at the upstream face of the dam.

  • Rapid drawdown b) Slow drawdown c) Transient seepage Figure 1: Three drawdown conditions for slope stability analysis.

Related to Rapid drawdown

  • Drawdown means a drawdown of an Advance;

  • Second Draw Period is the period commencing on December 1, 2015 and ending on the earlier of (i) January 31, 2016 and (ii) the occurrence of an Event of Default; provided, however, that the Second Draw Period shall not commence if on December 1, 2015, an Event of Default has occurred and is continuing.

  • Delayed Draw Loan A Loan that requires one or more future advances to be made by the Borrower and which does not permit the re-borrowing of any amount previously repaid by the related Obligor; provided that, such Loan shall only be considered a Delayed Draw Loan for so long as any future funding obligations remain in effect and only with respect to any portion which constitutes a future funding obligation.

  • Tranche A Loans means the Loans made pursuant to the Tranche A Commitment.

  • Facility B means the term loan facility made available under this Agreement as described in paragraph (b) of Clause 2.1 (The Facilities).

  • Delayed Draw Term Loans has the meaning as set forth in Section 2.5(a).

  • Delayed Draw Term Loan has the meaning specified in Section 2.01(b).

  • Tranche A Advance has the meaning specified in Section 2.01(a).

  • Tranche B Loans means loans made pursuant to Section 2.1(a)(ii).

  • Tranche C Loan has the meaning specified in Section 2.01(c).

  • Borrowing Date any Business Day specified by the Borrower as a date on which the Borrower requests the relevant Lenders to make Loans hereunder.

  • Tranche B Facility means the aggregate of the Tranche B Commitments.

  • Tranche B has the meaning assigned in Section 2.1(c)(i).

  • Revolving Line Maturity Date is that date which is two (2) years following the Effective Date.

  • Delayed Draw Term Loan Lender means a Lender with a Delayed Draw Term Loan Commitment or an outstanding Delayed Draw Term Loan.

  • Utilisation Date means the date of a Utilisation, being the date on which the relevant Loan is to be made.

  • Drawdown Date means, in relation to an Advance, the date requested by the Borrower for the Advance to be made, or (as the context requires) the date on which the Advance is actually made;

  • Delayed Draw Term Loan Commitment means the commitment of a Lender to make or otherwise fund a Delayed Draw Term Loan and “Delayed Draw Term Loan Commitments” means such commitments of all Lenders in the aggregate. The amount of each Lender’s Delayed Draw Term Loan Commitment, if any, is set forth on Schedule 2.01 or in the applicable Assignment and Assumption, subject to any adjustment or reduction pursuant to the terms and conditions hereof. The aggregate amount of the Delayed Draw Term Loan Commitments as of the Closing Date is $165,000,000.

  • Tranche A Loan shall have the meaning set forth in Section 2.01(a).

  • Tranche B Loan has the meaning specified in Section 2.01(b).

  • Second Tranche means the amount of the Financing allocated to the category entitled “Second Tranche” in the table set forth in Part B of Section II of Schedule 1 to this Agreement.

  • Revolving Facility Maturity Date means, as the context may require, (a) with respect to the Revolving Facility in effect on the Closing Date, the fifth anniversary of the Closing Date and (b) with respect to any other Classes of Revolving Facility Commitments, the maturity dates specified therefor in the applicable Extension Amendment or Refinancing Amendment.

  • Term Facility Maturity Date means, as the context may require, (a) with respect to the Term B-1 Loans, the Term B-1 Facility Maturity Date and (b) with respect to any other Class of Term Loans, the maturity dates specified therefor in the applicable Incremental Assumption Agreement.

  • Term Loan Advance and “Term Loan Advances” are each defined in Section 2.1.1(a).

  • Facility B Loan means a loan made or to be made under Facility B or the principal amount outstanding for the time being of that loan.

  • Term Advance has the meaning specified in Section 2.01(a).