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Technical specifications for construction of highway gas tunnels DB 50/T 962-2019

Technical specifications for construction of highway gas tunnels DB 50/T 962-2019
Technical specifications for construction of highway gas tunnels DB 50/T 962-2019
US$16.33
  • Stock: 100
  • Model: 10023783835356
  • Weight: 0.25kg
  • Dimensions: 29.80cm x 0.10cm x 0.50cm
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作  者:重庆市交通委员会工程质量安全监督局 编
定  价:68
出 版 社:人民交通出版社
出版日期:2020年04月01日
页  数:88
装  帧:平装
ISBN:DB 50/T 962-2019
目录
●前言
1范围
2规范性引用文件
3术语和定义
4总则
5一般规定
6瓦斯工区等级评定
7施工通风
8超前地质预报
9电气设备与作业机械
10瓦斯检测与监控
11钻爆作业与支护
12揭煤防突
13施工安全及应急救援
14质量检验与验收
附录A(规范性附录）煤层瓦斯压力测定方法
附录B(规范性附录）煤的破坏类型分类
附录C(规范性附录）煤的瓦斯放散初速度测定方法
附录D(规范性附录）煤的坚固性系数测定方法
附录E(规范性附录）绝对瓦斯涌出量和测风方法
附录F(规范性附录）钻屑指标法
附录G(规范性附录）钻孔瓦斯涌出初速度测定方法
附录H(规范性附录）瓦斯自动监控报警与断电系统
附录I(规范性附录）行走作业机械防爆改装技术指标与验收方法
附录J(规范性附录）气密性混凝土透气系数测定方法
附录K(资料性附录）瓦斯隧道施工管理表格
附件《公路瓦斯隧道施工技术规范》(DB50/T962—2019)条文说明
内容简介
本规范规定了公路瓦斯隧道施工的总则、一般规定、瓦斯工区等级评定、施工通风、超前地质预报、电气设备与作业机械、瓦斯检测与监控、钻爆作业与支护、揭煤防突、施工安全及应急救援、质量检验与验收等要求。本规范适用于重庆市新建、改建以钻爆法开挖为主的公路瓦斯隧道施工管理、安全监管、质量检验和工程验收。

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Women's Clothing (Coats & Jackets, Dresses, T-Shirts, Tops, Suits)
Standard Size
China (cm) 160-165/84-86 165-170 / 88-90 167-172 / 92-96 168-173 / 98-102 170-176 / 106-110
International XS S M L XL
USA 2 4-6 8-10 12-14 16-18
Europe 34 34-36 38-40 42 44
Bra - Under bust
Standard Size
China
(cm)		 76.2 81.3 86.4 91.5 96.5 101.6 106.7 112 117 122 127 132 137 142
USA 30 32 34 36 38 40 42 44 46 48 50 52 54 56
UK 30 32 34 36 38 40 42 44 46 48 50 52 54 56
Europe   70 75 80 85 90                
France   85 90 95 100 105                
Italy   1 2 3 4 5                
Bra - Cup size
Standard Size
China A B C D E                  
USA AA A B C D DD DDD/E F FF G GG H HH J
UK AA A B C D DD E F FF G GG H HH J
Europe AA A B C D E F              
France AA A B C D E F              
Italy   B B/none C D DD E F            
Women's Underwear
Standard Size
China S M L XL XXL XXXL
International XS S M L XL XXL
USA 2 4 6 8 10 12
UK 6 8 10 12 14 16
Europe 32 34 36 38 40 42
France 34 36 38 40 42 44
Italy 38 40 42 44 46 48
Women's Shoes
Standard Size
Length (cm) 22.8 23.1 23.5 24.1 24.5 25.1 25.7 26 26.7 27.3 27.9 28.6 29.2
China 35.5 36 37 38 39 40 41.5 42 43 44.5 46 47 48
USA 5 5.5 6 7 7.5 8.5 9.5 10 10.5 12 13 14 15.5
UK 2.5 3 3.5 4.5 5 6 7 7.5 8 9.5 10.5 11.5 13
Europe 35 35.5 36 37.5 38 39 41 42 43 44 45 46.5 48.5
Men's Clothing (Coats & Jacketst,T-Shirts,Suits)
Standard Size
China (cm) 165 / 88-90 170 / 96-98 175 / 108-110 180 / 118-122 185 / 126-130
International S M L XL XXL
Men's Clothing (Shirts)
Standard Size
China (cm) 36 - 37 38 - 39 40 - 42 43 - 44 45 - 47
International S M L XL XXL
Men's Clothing (Pants)
Size (cm) 42 44 46 48 50
Waist (cm) 68 - 72 cm 71 - 76 cm 75 - 80 cm 79 - 84 cm 83 - 88 cm
Outseam (cm) 99 cm 101.5 cm 104 cm 106.5 cm 109 cm
Men's Underwear
Standard Size
China(cm) 72-76 76-81 81-87 87-93 93-98
International S M L XL XXL
USA(inch) 28-30 30-32 32-34 34-38 38-42
Men's Shoes
Standard Size
Length(cm) 24.5 25.1 25.7 26 26.7 27 27.6 28.3 28.6 28.9
China 39.5 41 42 43 44 44.5 46 47 47.5 48
USA 6 7 8 8.5 9.5 10 11 12 12.5 13
UK 5.5 6.5 7.5 8 9 9.5 10.5 11.5 12 12.5
Europe 38 39 41 42 43.5 44 45 46 46.5 47
长度Length
Imperial英制 Meric公制
1 inch[in] 英寸 ---- 2.54 cm 厘米
1 foot[ft] 英尺 12 in 英寸 0.03048 m 米
1 yard[yd] 码 3 ft 英尺 0.9144 m 米
1 mile[mi] 英里 1760 yd 码 1.6093 km 千米
1 int nautical mile[inm] 海里 2025.4 yd 码 1.853 km 千米
面积Area
Imperial英制 Meric公制
1 sq inch[in2] 平方英寸 ---- 6.4516 cm2 平方厘米
1 sq foot[ft2] 平方英尺 144 in2 平方英寸 0.0929 m2 平方米
1 sq yard[yd2] 平方码 9 ft2 平方英尺 0.8361 m2 平方米
1 acre 英亩 4840 yd2 平方码 4046.9 m2 平方米
1 sql mile[mile2] 平方英里 640 acre 英亩 2.59 km2 平方千米
体积/容量Volume/Capacity
Imperial英制 Meric公制
1 fluid ounce 液量蛊司 1.048 UK fl oz 英制液量蛊司 29.574 ml 毫升
1 pint(16 fl oz 液量品脱)品脱 0.8327 UK pt 英制品脱 0.4731 l 升
1 gallon 加仑 0.8327 UK gal 英制加仑 3.7854 l 升
重量Weight
Imperial英制 Meric公制
1 ounce[oz]蛊司 437.5 grain 格令 28.35 g 克
1 pound[lb]磅 16 oz 蛊司 0.4536 kg 千克
1 stone 石 14 lb 磅 6.3503 kg 千克
1 hundredweight[cwt] 英担 112 lb 磅 50.802 kg 千克
1 long ton(UK) 长顿 20 cwt 英担 1.061 t 顿