Clause-E1-surface-water 新西兰建筑规范条款E1：地表水下载 - 国外标准

标准信息

STANDARD INFORMATION

标准编号: Clause-E1-surface-water
所属分类: 其他国外标准与工程资料
发布机构: Department of Building and Housing
版本年份: 2006
文件语言: 英语
文件格式: PDF
文件页数: 6 页
文件大小: 1.11 MB

中文名称为参考译名，文件语言以原文为准。

· 更新：2026-10-17

标准简介

OVERVIEW

中文简介

该合规文档为新西兰建筑规范E1条款提供符合性方法，规定建筑物和场地工程对地表水的防护要求。文档适用于建筑及场地工程中的地表水径流、排水系统设计、施工、测试和出流保护。

English summary

This compliance document provides methods for meeting New Zealand Building Code Clause E1 on surface water. It applies to buildings and sitework, covering surface water runoff, drainage system design, construction, testing, and outfall protection.

以上为根据文件整理的内容简介。

标准内容预览

DOCUMENT PREVIEW

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Status of Compliance Documents

Compliance Documents are prepared by the Department of Building and Housing in accordance with section 22 of the Building Act 2004. A Compliance Document is for use in establishing compliance with the New Zealand Building Code.

A person who complies with a Compliance Document will be treated as having complied with the provisions of the Building Code to which the Compliance Document relates. However, a Compliance Document is only one method of complying with the Building Code. There may be alternative ways to comply.

Users should make themselves familiar with the preface to the New Zealand Building Code Handbook, which describes the status of Compliance Documents and explains alternative methods of achieving compliance.

Defined words (italicised in the text) and classified uses are explained in Clauses A1 of the Building Code and in the Definitions at the start of this Compliance Document.

E1: Document History
	Date	Alterations
First published	July 1992
Amendment 1	September 1993	pp. vi and vii, References p. 14, 3.2.1, Figure 3 p. 16, Table 2 p. 18, 3.7.4 p. 20, Figure 13	p. 21, Figure 14 p. 22, Table 4, Table 5, 5.1, 5.1.1, 5.1.2 p. 23, Figure 15, Figure 16 p. 24, 5.1.3, 5.1.4
Amendment 2	19 August 1994	pp. i and ii, Document History p. vi, NZS 3441 replaced NZS 3403	p. 21, 3.9.8 p. 22, Table 4, Table 5 p. 24, 5.1.3, Table 6
Reprinted incorporating Amendments 1 and 2	October 1994
Amendment 3	1 December 1995	p. ii, Document History	p. iii, E1.3.1
Reprinted incorporating Amendments 1, 2 and 3	July 1996
Amendment 4	1 December 2000	p. ii, Document History p. v, Contents pp. vi and vii, References	p. viii, Definitions pp. 1 – 12K, Revised VM1 pp. 27 and 28, Index
Amendment 5		p. 2, Document History, Status p. 7, References p. 31, 9.0.5	p. 39, 3.8.1 p. 42, 4.3.2
Amendment 6	6 January 2002	p. 3 Code Clause E1
Reprinted incorporating Amendments 4, 5 and 6	September 2003
Note: Page numbers relate to the document at the time of Amendment and may not match page numbers in current document.

Document Status

The most recent version of this document, as detailed in the Document History, is approved by the Chief Executive of the Department of Building and Housing. It is effective from 6 January 2002 and supersedes all previous versions of this document.

People using this Compliance Document should check for amendments on a regular basis. The Department of Building and Housing may amend any part of any Compliance Document at any time. Up-to-date versions of Compliance Documents are available from www.dbh.govt.nz

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Building Regulations 1992

1992/150 Building Regulations 1992 37

FIRST SCHEDULE–continued

Provisions	Limits on application
(d) Provide reasonable access for maintenance and clearing blockages,
(e) Avoid the likelihood of damage to any outfall, in a manner acceptable to the network utility operator, and
(f) Avoid the likelihood of damage from superimposed loads or normal ground movements.

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	Page
References	7
Definitions	9
Verification Method E1/VM1	11
1.0 Scope	11
2.0 Estimation of Surface Water Run-off	11
2.1 Run-off coefficient	12
2.2 Rainfall intensity	12
2.3 Time of concentration	13
3.0 Sizing of Surface Water System	16
3.1 Minimum size of drains	16
3.2 Hydraulic design	16
3.3 Pipe materials	17
4.0 Secondary Flow	17
4.1 Secondary flow from a piped surface water drainage system upstream of the site	18
4.2 Secondary flow from an open water course upstream of the site	24
4.3 Secondary flow from site to downstream drainage system	27
5.0 Energy Losses Through Structures	27
6.0 Minimum Velocity	27
7.0 Outfall Protection	29
8.0 Drain Leakage Tests	29
8.1 Water test	29
8.2 Low pressure air test	29
8.3 High pressure air test	30
9.0 Disposal to soak pit	30

Amend 4 Dec 2000

	Page
Acceptable Solution E1/AS1	33
1.0 Limitations of the Solution	33
2.0 Minimum Acceptable Floor Level	33
3.0 Drainage System Materials and Construction	34
3.1 Materials	34
3.2 Sizing of drains	34
3.3 Alignment and gradient of drains	34
3.4 Minimum gradients	34
3.5 Jointing of drains	36
3.6 Surface water inlets to drains	36
3.7 Access for maintenance	37
3.8 Testing of drains	39
3.9 Bedding and backfilling	39
4.0 Downpipes	42
4.1 Materials	42
4.2 Sizing of downpipes	42
4.3 Installation of downpipes	42
5.0 Roof Gutters	42
5.1 Size of roof gutter	42
5.2 Materials	44
5.3 Gradients	44
5.4 Thermal movement	44
5.5 Overflow outlets	44
Appendix A
Rainfall intensities	45
Index	47