地震液化区高压输电线路的基础选型及抗液化措施  

Basic selection and anti-liquefaction measures of high-voltage transmission lines in seismic liquefaction area

作　　者：张军 李妮娜 ZHANG Jun;LI Ni-na

机构地区：[1]宁夏朔源电力设计咨询有限公司,宁夏银川750001

出　　处：《智能城市》2023年第2期43-46,共4页Intelligent City

摘　　要：以大唐高仁升压站—月牙湖220 kV线路工程中两基耐张塔为例,对220 kV及以下电压等级的输电线路地震液化区基础选型及抗液化措施进行对比分析。提出了刚性台阶基础+砂夹石换填法、柔性板式基础+碎石桩法、灌注桩基础法等抗地基液化的综合防治措施,采用TLSD及百合基础设计软件进行计算,对比分析了经济性,推荐在液化层较薄的地区采用刚性台阶基础+砂夹石换填法,液化层较厚的地段采取灌注桩基础法。Taking the two-base tensile tower in the Datang Gaoren booster station-Crescent Lake 220 kV line project as an example, the basic selection and anti-liquefaction measures of transmission lines with voltage levels of 220 kV and below were compared and analyzed. The comprehensive prevention and control measures against foundation liquefaction such as rigid step foundation+sand and stone filling method, flexible plate foundation+gravel pile method and pile foundation method were proposed, and TLSD and lily foundation design software were used for calculation, and the economy was compared and analyzed, and it was recommended to use rigid step foundation+sand and stone replacement method in areas with thin liquefaction layer, and the pile foundation method was adopted in the lot with thick liquefaction layer.

关 键 词：高压输电线路 地震液化 基础选型 抗液化措施 

分 类 号：TU470[建筑科学—结构工程]