共找到 85 条与 防洪、排涝工程 相关的标准,共 6 页
1.1 This practice covers common installation requirements for temporary silt fence applications. This practice is based on AASHTO M288.1.2 This practice is applicable to the use of silt fence as a vertical permeable interceptor designed to remove suspended soil from overland, nonconcentrated water flow. The function of a temporary silt fence is to trap and allow settlement of soil particles from sediment laden water. The purpose is to greatly limit the transport of eroded soil from the a construction site by water runoff.1.3 The practices presented herein are intended to ensure good workmanship and quality and are not necessarily adequate for all purposes in view of the wide variety of possible sediments and performance objectives.1.4 The values stated in SI units are to be regarded as the standard. The values in inch-pound units are provided for information only.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Standard Practice for Silt Fence Installation
1.1 This test method provides a procedure for performing a torsional ring shear test under a drained condition to determine the residual shear strength of cohesive soils. An undisturbed specimen can be used for testing. However, obtaining a natural slip surface specimen, determining the direction of field shearing, and trimming and properly aligning the usually non-horizontal shear surface in the ring shear apparatus is difficult. As a result, this test method focuses on the use of a remolded specimen.This test method is performed by deforming a presheared, remolded specimen at a controlled displacement rate until the constant minimum drained shear resistance is offered on a single shear plane determined by the configuration of the apparatus. An unlimited amount of continuous shear displacement can be achieved to obtain a residual strength condition. Generally, three or more normal stresses are applied to a test specimen to determine the drained residual failure envelope. A separate test specimen may be used for each normal stress.1.2 A shear stress-displacement relationship may be obtained from this test method. However, a shear stress-strain relationship or any associated quantity, such as modulus, cannot be determined from this test method because possible soil extrusion and volume change prevents defining the height needed in the shear strain calculations. As a result, shear strain cannot be calculated but shear displacement can be calculated.1.3 The selection of normal stresses and final determination of the shear strength envelope for design analyses and the criteria to interpret and evaluate the test results are the responsibility of the engineer or office requesting the test.This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1.4 The values stated in SI units are to be regarded as the standard. The values stated in inch-pound units are approximated.
Standard Test Method for Torsional Ring Shear Test to Determine Drained Residual Shear Strength of Cohesive Soils
1.1 This test method covers the guidelines, requirements and procedures for evaluating the ability of Erosion Control Blankets (ECBs) to protect hillslopes from rainfall-induced erosion. Critical elements of this protection are the ability of the ECB to: 1.1.1 Absorb the impact force raindrops, thereby reducing soil particle loosening through "splash" mechanisms; 1.1.2 Slow runoff and encourage infiltration, thereby reducing soil particle displacement and transport through "overland flow" mechanisms; 1.1.3 Absorb shear forces of overland flow; and,1.1.4 Trap soil particles beneath. 1.2 This test method utilizes full-scale testing procedures, rather than reduced-scale (bench-scale) simulation, and is patterned after conditions typically found on construction sites at the conclusion of earthwork operations, but prior to the start of revegetation work. Therefore this considers only unvegetated conditions. Note 1--Future revisions may consider partial or fully vegetated conditions. 1.3 This test method provides a comparative evaluation of an ECB to baseline bare soil conditions under controlled and documented conditions. 1.4 The values stated in SI units are to be regarded as standard. The inch-pound values given in parentheses are provided for information purposes only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Also, the user must comply with prevalent regulatory codes, such as OSHA (Occupational Health and Safety Administration) guidelines, while using the test method.
Standard Test Method for Determination of Erosion Control Blanket (ECB) Performance in Protecting Hillslopes from Rainfall-Induced Erosion
本规程适用于水利水电枢纽工程等级划分及设计标准中的ⅠⅡ、Ⅲ、Ⅳ级土石坝。V级土石坝可参照执行。 本规程内容包括土石坝的养护、修理、白蚁及其他动物危害的防治。修理包括岁修、大修和抢修,其中抢修属非常情况下的修理,列入本规程的附录A中。
Care and maintenance specifications of embankment dam
本规范适用于1、2、3级堤防工程的施工;4、5级堤防工程施工应参照执行。
Specification for levee project construction
本规范主要适用于已成防洪工程某洪水年或一段时期实际产生的经济效益的分析计算及评价。
Regulattion for economic benefit analysis calculation and evaluation of existing flood control projects
1.1 This guide provides the user with a method for testing the watertightness of waterproofing installations applied to horizontal surfaces having a slope not greater than 20 mm/m (2 % slope) (1/4 in. per ft).1.2 This guide is intended for waterproofing installation on parking garages and plaza deck type applications over habitable spaces or on elevated structures, but is not intended for use on building roofing systems. Applicable waterproofing membrane installations that may be tested using this guide are fully adhered or bonded sheet membranes, liquid or fluid applied membranes, or loose laid sheet membranes.1.3 The procedures presented here are not intended for use on those waterproofing installation applications that are for long-term water storage or continuously submerged environments, such as swimming pools, fountains, tank liners with hydrostatic pressure, or water storage units (storage period greater than 48 h).1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Standard Guide for Flood Testing Horizontal Waterproofing Installations
1.1 The purpose of this guide is to provide the user with a method for testing the watertightness of waterproofing installations applied to horizontal surfaces having a slope not greater than 1/4 in. per ft (2 percent slope) (20 mm/m). 1.2 This guide is intended for waterproofing installation on parking garages and plaza deck type applications over habitable spaces or on elevated structures, but is not intended for use on building roofing systems. Applicable waterproofing membrane installations, which may be tested using this guide, are fully adhered or bonded sheet membranes, liquid or fluid applied membranes, or loose laid sheet membranes. 1.3 The procedures presented here are not intended for use on those waterproofing installation applications that are for long-term water storage or continuously submerged environments, such as swimming pools, fountains, tank liners with hydrostatic pressure, or water storage units (storage period greater than 48 h). 1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Standard Guide for Flood Testing Horizontal Waterproofing Installations
Design specification for levee project management
Équipements de protection contre les avalanches - Ancrages passifs ponctuels en sol meuble - Méthode d'essais d'arrachement.
本规范适用于河流冰情观测,亦可用于湖泊、水库、渠道的冰情观测。 本规范中的术语和符号采用国家标准GBJ95 86《水文测验术语和符号标准》的有关规定。计量单位采用《中华人民共和国法定计量单位使用方法》的规定。
Technical standard for observations of ice regime in open channels
Code for design of flood control engineering in city
This appendix contains various illustrations and diagrams of typical applications of specific code provisions to one- and two-family dwellings and is intended to illustrate the subject matter of the related text.
Storm Drainage Systems Eighth Edition
Standard for quality test and estimation of municipal engineerings (flood protection)
Torrent control; terms, planning and construction
Design standard of flood control project in city
Technical code for farmland drainage project(explanation)
Technical standard for observations of ice regime in open channels(explanation)
Regulation of ration compiling for flood prevention reserves(explanation)
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