水工隧洞設(shè)計規(guī)范：SL 279-2016（英文）

Introduction to English Version

Foreword

1 General Provisions

2 Terms and Symbols

2．1 Terms

2．2 Symbols

3 Basic Data

4 Layout of Tunnels

4．1 Selection of Tunnel Alignment

4．2 I，ayout of Tunnel Inlets and Outlets

4．3 Layout of Multipurpose Tunnels

5 Pressure Status， Shape and Size of Tunnels

5．1 Selection of Pressure Status

5．2 Cross-Sectional Shape

5．3 Cross-Sectional Size

6 Hydraulic Design of Tunnels

6．1 Principle of Calculation

6．2 Cavitation Damage Prevention Design of High- Velocity Tunnels

7 Design of Soil Tunnels

7．1 Supports and I_inings of Soil Tunnels

7．2 Joints， Seepage Control and Waterstops for the Linings of Soil Tunnels

8 Design of Tunnels in Poor Ground

9 Tunnel Supports and Linings

9．1 General

9．2 Loads and Load Combinations

9．3 Unreinforced- and Reinforced-Concrete Linings

9．4 Prestressed Concrete Linings

9．5 Unlined and Bolt-Shotcrete Lined Tunnels

9．6 Design of Reinforced Concrete Lined Bifurcation

9．7 Jointsin Linings

9．8 Design of Water-Retaining Plugs

10 Grouting， Seepage Control and Drainage of Tunnels

10．1 Grouting

10．2 Seepage Control and Drainage

11 Tunnel Operation and Maintenance

Annex A Head Loss Calculation for Hydraulic Tunnels

A．1 Friction Losses

A．2 Form Losses

Annex B Cavitation Damage Prevention Design of High-Velocity Tunnels

Annex C Calculation Method and Reduction Coefficient of External Water Pressure

Annex D Calculation of Concrete Lining Crack Width

Explanation of Wording

This specification is formulated to standardize the design of hydraulic tunnels and ensure the design quality with the view of making use of the state-of-the-art technology， meeting the requirements for safety， applicability， cost-effectiveness， and rationality.

This specification is applicable to the design of Class 1， Class 2 and Class 3 hydraulic tunnels in water resources and hydropower projects， but not applicable to the design of hydraulic tunnels with steel linings in rock/soil mass.

內(nèi)容簡介

《DL/T 51952004 英文版》為Specification for Design“水工隧洞設(shè)計規(guī)范（DL/T 5195-2004）（英文版）”?！禗L/T 51952004 英文版》由中國電力出版社編著。2100433B

(1)主要成分 改性環(huán)氧樹脂。

(2)性狀 膠液、膠膜或膠棒。

(3)性能指標(biāo)

不同型號粘接件常溫下的測試強度：

SL系結(jié)構(gòu)膠型號 SL-1 SL-2 SL-3 SL-4 SL-5

剪切強度/MPa 材料斷材料斷≥40 材料斷材料斷

不均勻扯離強度/(N/cm) ≥800 ≥1050≥1000~750

剝離強度/(N/cm) ≥90 ≥80 ≥150 ~100 85

粘接件不同溫度的剪切強度(MPa)：

SL系結(jié)構(gòu)膠型號 SL-1 SL-2 SL-3 SL-4 SD5

—600℃ 材料斷材料斷≥40 材料斷材料斷

100℃ ≥22 ≥35

180℃ ≥260 ≥31

230℃ 14

主要用途：SL-1適用于鈑金粘接：SL-2專用于粘接鋁蜂窩、玻璃鋼等閉孔蜂窩結(jié)構(gòu)件;SL-3適用于粘接鐵路絕緣鋼軌的預(yù)成形槽鋼粘接，也可用于一些摩擦制動材料的粘接;SL-4用于強度要求高的金屬、玻璃、陶瓷及工程塑料結(jié)構(gòu)件的粘接;SL一5用于在高溫中需較長期使用的各種材料的結(jié)構(gòu)件粘接。

(4)施工工藝配膠：甲：乙：丙=3.9：1.2：0.12(質(zhì)量比)充分混合，攪拌均勻。涂膠：膠液直接涂布;膠膜直接敷于被粘物表面;使用膠棒時;先將被粘物加熱至150～170℃，然后將膠棒在熱的表面涂敷。固化：0.1～0.2MPa，170℃固化2h。

(5)存儲要求 膠液密閉貯存，膠膜用塑料薄膜隔開封裝，膠棒裝在塑料袋中。貯存于避光陰涼處，貯存期12個月。 2100433B

SL升流器用于校驗電流互感器時，作為供給電流互感器一次電流的電源或其它50Hz單相電流電源設(shè)備。

特性：

◆ SL升流器是由輸入繞組（220V、±）、輸出繞組（100A以下）及穿心繞組組成。

◆ 輸出容量與輸出電流和每匝電壓的乘積的比值既為在此輸出電流情況下允許穿心的最大匝數(shù)。

◆ 輸出電流是指穿心繞組允許通過的額定電流。當(dāng)穿心多匝時，SL升流器允許通過的額定電流將成反比下降。

◆ 帶腳輪，便于搬運。

參數(shù)：

◆ 容量：0.5kVA~30kVA

◆ 允許額定電流下長期工作

◆ 允許過載1.5倍，連續(xù)工作30分鐘。2100433B