软土地层高压杆塔旁侧深基坑保护设计及影响分析
Protection Design and Influence Analysis of Deep Foundation Pit Beside High-voltage Pole and Tower in Soft Soil Layer
谭英明 1王景华1
作者信息
- 1. 杭州市市政工程集团有限公司,浙江 杭州 310014
- 折叠
摘要
文章以杭州地区某"上改下"电力隧道项目距离现状110 kV高压杆塔水平距离仅为9.5 m的12 m深隧道基坑为背景,探讨了软土地层高压铁塔旁侧深基坑方案的设计思路及要点,并采用数值计算结合现场实测的研究方法,分析了基坑施工对铁塔的影响.实测数据表明,塔基垂直位移为3.54 mm,水平位移为2.61 mm,附加倾斜度为0.094‰,基坑施工对高压杆塔的影响可控.研究结论对类似工程有一定的指导与借鉴意义.
Abstract
Based on the 12-meter-deep tunnel foundation pit of an"upper to lower"power tunnel project in Hangzhou,which is only 9.5 m away from the current 110 kV high-voltage pole and tower,this paper discusses the design ideas and key points of the deep foundation pit scheme beside the high-voltage pole and tower in soft soil layer,and analyzes the influence of foundation pit construction on the iron tower by numerical calculation combined with field measurement.The measured data show that the vertical displacement of the tower foundation is 3.54 mm,the horizontal displacement is 2.61 mm,and the additional inclination is 0.094‰.The influence of foundation pit construction on high-voltage pole and tower is controllable.The research conclusions have certain guidance and reference significance for similar engineering.
关键词
软土区域/深基坑/高压杆塔Key words
soft soil area/deep foundation pit/high-voltage pole and tower引用本文复制引用
出版年
2024
NETL
NSTL
万方数据