标准信息
STANDARD INFORMATION- 标准编号
- EN 14490
- 所属分类
- EN 欧洲标准
- 发布机构
- CEN
- 版本年份
- 2010
- 文件语言
- 英语
- 文件格式
- 文件页数
- 6 页
- 文件大小
- 3.72 MB
中文名称为参考译名，文件语言以原文为准。
· 更新：
标准简介
OVERVIEW中文简介
该标准规定了土钉施工、试验、监督与监测的一般原则，适用于在土体中稳定既有和新开挖边坡、挡土结构、路堤及隧道等工程中的土钉安装与相关作业。它不涵盖竖向加固体、岩石锚杆、预应力锚索或受拉桩等其他地基加固技术。
English summary
This European Standard establishes general principles for the execution, testing, supervision and monitoring of soil nailing. It applies to installing and testing soil nails for stabilising existing and newly cut slopes, retaining structures, embankments, tunnels and excavated tunnel faces in soil. It does not cover vertical inclusions, rock bolts, prestressed ground anchors or tension piles.
以上为根据文件整理的内容简介。
相关标签
标准内容预览
DOCUMENT PREVIEW3.1.6 facing system
fr: système de parement
de: Frontausbildungssystem
assemblage of facing units used to produce a finished facing of reinforced ground
3.1.7 facing unit
fr: élément de parement
de: Frontausbildungselement
discrete element used to construct the facing
3.1.8 flexible facing
fr: parement flexible
de: bedingt nachgiebige Frontausbildung
flexible covering which assists in containing soil between the nails
3.1.9 ground
fr: terrain
de: Baugrund
soil, rock and fill existing in place prior to the execution of the construction works
3.1.10 hard facing
fr: parement rigide
de: starre Frontausbildung
stiff covering, for example sprayed concrete, precast concrete section or cast in-situ concrete
3.1.11 production nail
fr: clou de l'ouvrage
de: Bauwerksnagel
soil nail which forms part of the completed soil nail structure
3.1.12 reinforcing element
fr: élément de renforcement
de: Bewehrungselement
generic term for reinforcing inclusions inserted into ground
3.1.13 reinforced ground
fr: massif renforcé, sol cloué
de: bewehrter Boden
ground that is reinforced by the insertion of reinforcing elements
3.1.14 sacrificial nail
fr: clou sacrificiel
de: Sondernagel
soil nail installed in the same way as the production nails, solely to establish the pullout capacity but not forming part of the soil nail structure
6
Contents
| Page | ||
|---|---|---|
| Foreword | 3 | |
| 1 | Scope | 4 |
| 2 | Normative references | 4 |
| 3 | Terms, definitions and symbols | 5 |
| 4 | Information needed for the execution of the works | 8 |
| 5 | Geotechnical investigation | 9 |
| 6 | Materials and products | 10 |
| 7 | Design considerations | 14 |
| 8 | Execution | 16 |
| 9 | Supervision, testing and monitoring | 24 |
| 10 | Records | 28 |
| 11 | Special requirements | 29 |
| Annex A (informative) Practical aspects of soil nailing | 31 | |
| Annex B (informative) Aspects of design | 43 | |
| Annex C (informative) Testing of soil nail systems | 50 | |
| Annex D (informative) Degree of obligation of the specifications | 59 | |
| Bibliography | 68 |
2
Foreword
This document (EN 14490:2010) has been prepared by Technical Committee CEN/TC 288 "Execution of special geotechnical works", the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2010, and conflicting national standards shall be withdrawn at the latest by December 2010.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
The remit of CEN/TC 288 is the standardisation of the execution procedures for geotechnical works (including testing and control methods) and of the required material properties. CEN/TC 288/WG 13 has been charged with the preparation of EN 14490 in the subject area of soil nailing.
The document has been prepared to stand alongside EN 1997-1, Eurocode 7: Geotechnical design. "Design considerations" of this European Standard deals only with those matters which should be taken into account during the execution stage of soil nailing so that the design of the soil nailing system may be fulfilled. This European Standard, however, provides full coverage of the construction and supervision requirements.
This European Standard has been drafted by a working group comprising delegates from ten countries and the comments of these countries have been taken into account.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
3
1 Scope
1.1 This European Standard establishes general principles for the execution, testing, supervision and monitoring of soil nailing.
1.2 Soil nailing is a construction technique, used to enhance/maintain the stability of a soil mass by installation of reinforcing elements (soil nails). Typical examples of soil nailing are given in Annex A.
1.3 The scope of soil nailing applications considered in this European Standard includes the installation and testing of soil nails and associated operations, required when stabilising existing and newly cut slopes and faces in soil, existing earth retaining structures, embankments, existing tunnels and the excavated facing of new tunnels in soil.
1.4 Soil nailing may be used to form part of a hybrid construction. This European Standard is relevant only to the soil nailing aspect of such constructions.
1.5 Techniques, such as reinforcement of ground by vertical inclusions (sheet piles, bored or driven piles, or other elements) and stabilisation with rock bolts, prestressed ground anchors or tension piles are not covered by this European Standard.
1.6 Guidance on practical aspects of soil nailing and aspects on design, durability and testing is given in informative Annexes A, B and C, respectively.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 196-1, Methods of testing cement — Part 1: determination of strength
EN 197-1, Cement — Part 1: Composition, specifications and conformity criteria for common cements
EN 206-1, Concrete — Part 1: Specification performance, production and conformity
EN 1537, Execution of special geotechnical work — Ground anchors
EN 1992-1-1, Eurocode 2: Design of concrete structures — Part 1-1: General rules and rules for buildings
EN 1997-1:2004, Eurocode 7: Geotechnical design — Part 1: General rules
EN 1997-2:2007, Eurocode 7 — Geotechnical design — Part 2: Ground investigation and testing
EN 10025-2, Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-alloy structural steels
EN 10079, Definition of steel products
EN 10080, Steel for the reinforcement of concrete — Weldable reinforcing steel — General
EN 10138 (all parts), Prestressing steels
EN 10210 (all parts), Hot finished structural hollow sections of non-alloy and fine grain steels
EN 10219 (all parts), Cold formed welded structural hollow sections of non-alloy and fine grain steels
4
EN 10244 (all parts), Steel wire and wire products — Non-ferrous metallic coatings on steel wire
EN 10245 (all parts), Steel wire and wire products — Organic coatings on steel wire
EN 13251:2000, Geotextiles and geotextile-related products — Characteristics required for use in earthworks, foundations and retaining structures
EN 13670, Execution of concrete structures
EN 14487-1, Sprayed concrete — Part 1: Definitions, specifications and conformity
EN 14488 (all parts), Testing sprayed concrete
EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods (ISO 1461:2009)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
bearing plate
fr: plaque d'appui
de: Kopfplatte
plate connected to the head of the soil nail to transfer a component of load from the facing or directly from the ground surface to the soil nail
3.1.2
design life
fr: durée de service
de: Entwurfslebensdauer
service life in years required by the design
3.1.3
drainage system
fr: système de drainage
de: Dränesystem
series of drains, drainage layers or other means to control surface and ground water
3.1.4
facing
fr: parement
de: Frontausbildung
covering to the exposed face of the reinforced ground that may provide a stabilising function to retain the ground between soil nails, provide erosion protection and have an aesthetic function
3.1.5
facing drainage
fr: drainage de parement
de: Dränage der Frontausbildung
system of drains used to control water behind the facing
5
3.1.6 facing system
fr: système de parement
de: Frontausbildungssystem
assemblage of facing units used to produce a finished facing of reinforced ground
3.1.7 facing unit
fr: élément de parement
de: Frontausbildungselement
discrete element used to construct the facing
3.1.8 flexible facing
fr: parement flexible
de: bedingt nachgiebige Frontausbildung
flexible covering which assists in containing soil between the nails
3.1.9 ground
fr: terrain
de: Baugrund
soil, rock and fill existing in place prior to the execution of the construction works
3.1.10 hard facing
fr: parement rigide
de: starre Frontausbildung
stiff covering, for example sprayed concrete, precast concrete section or cast in-situ concrete
3.1.11 production nail
fr: clou de l'ouvrage
de: Bauwerksnagel
soil nail which forms part of the completed soil nail structure
3.1.12 reinforcing element
fr: élément de renforcement
de: Bewehrungselement
generic term for reinforcing inclusions inserted into ground
3.1.13 reinforced ground
fr: massif renforcé, sol cloué
de: bewehrter Boden
ground that is reinforced by the insertion of reinforcing elements
3.1.14 sacrificial nail
fr: clou sacrificiel
de: Sondernagel
soil nail installed in the same way as the production nails, solely to establish the pullout capacity but not forming part of the soil nail structure
6
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