ABB XV C768 AE101 3BHB007211R0101 使用产品

产品标题：07KT93 GJR5251300R0161 咨询咨询 电源数字量控制卡

型号：07KT93 GJR5251300R0161 

品牌：ABB

质保：七天验收期，质保期一年
发货期：1-3个工作日

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 10.2.1钢柱基础
通常，基础的横向强度应至少等于
未支撑的柱子。斜杆的总垂直荷载应包括垂直构件
撑杆荷载。
因此，应针对施加的垂直荷载以及
倾覆力矩。
钢杆和拉线锚的基础设计取决于平均土壤类型
地面以下电杆直径、种植深度和线路设计（单根或双根
电路）。在本标准中，中压线路钢杆的种植深度为2.0m，低压线路钢杆为2.0m
H型杆结构的杆和短杆为1.5m。
单回路和双回路中压线路和低压线路的每种类型的钢杆的基础详图
表10.1、10.2和10.3以及04号图纸中给出了直线。这些基础详情如下
也适用于中压线路和复合结构（中压+低压线路）。
对于所有类型的分接杆，重型角杆基础适用。
应提供50mm厚的贫混凝土。高度为300mm的石块/巨石
150-250mm填充在基础下方的坑中，以降低承载压力。
为防止积水，基础顶面在混凝土盖面时必须倾斜
离地高度至少应为300mm。对于山谷/河道交叉点
顶盖高度应为500mm，以防雨水流入。
对于易受侵蚀的山坡和河滩附近的基础，应采用
在电杆基础周围设置挡土墙或巨石。
所有电杆和拉线基础应严格养护至少3天。
10.2.2岩石/密实土壤中的基础
坚固的岩石/致密土壤具有足够的抗侧向承压能力
横向偏转。电杆基础在岩石/密实土壤中的开挖深度应为2m
用掺有20-30%sa的小尺寸漂石回填
10.2.1 Steel Pole Foundations

In general lateral strength of foundation shall be at least equal to the cantilever strength of
the unstayed pole. Total vertical loads of a stayed pole shall include the vertical component
loads of the stays.
Thus pole foundations shall be designed against vertical load applied as well as the
overturning moment.
Foundations design of steel poles and guy anchors depends on type of the soil, average
diameter of pole below ground, planting depth and design of the line (single or double
circuit). In this standard the planting depth for MV line steel poles is 2.0m, for LV line steel
poles and for short pole of H-Pole structure is 1.5m.
Foundation details for each type of steel pole for single and double circuit MV line and LV
line are given in table 10.1, 10.2 & 10.3 and drawing No.04. These foundation details are
also applicable to both MV line and composite construction (MV+LV lines).
For all type of tap-off poles Heavy angle pole foundations are applicable.
Lean concrete 50mm thick shall be provided. For height 300 mm, stones / boulders of size
150-250mm are to be filled in pit below foundation to reduce the bearing pressure.
To prevent water stagnation, foundation top surface must be slopped while concrete capping
height above ground level should be at least 300mm. For valley / wadi crossing poles, the
capping height should be 500mm against rain water flow.

For foundations near hill side and wadis which are easily eroded, the protection shall be
arranged with retaining walls or boulders stacked around the pole foundation.
Curing shall be strictly done for all the pole and stay foundations for minimum 3 days.
10.2.2 Foundation in Rock / Dense soil
Sound rocks / dense soil have sufficient resistance against lateral bearing pressure and
lateral deflection. The pole foundation excavation depth in rock / dense soil shall be 2m and
to be backfilled with small size boulders mixed with 20-30% sa

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