桩-土-结构相互作用下井塔的地震响应分析

doi:10. 11799/ ce202511025

煤炭工程 ›› 2025, Vol. 57 ›› Issue (11): 203-208.doi: 10. 11799/ ce202511025

桩-土-结构相互作用下井塔的地震响应分析

韩流涛，赵寿兴，葛楠，苏幼坡，韩建强，王宁，宋晓胜，张昊

1. 华北理工大学建筑工程学院，河北唐山 063210 2. 河北省地震工程与防灾重点实验室，河北唐山 063210

收稿日期:2025-06-27 修回日期:2025-09-12 出版日期:2025-11-10 发布日期:2026-01-09
通讯作者: 韩流涛 E-mail:ncst2020@163.com

Seismic response of a shaft tower considering the piles-soil-structures interaction

Received:2025-06-27 Revised:2025-09-12 Online:2025-11-10 Published:2026-01-09

摘要/Abstract

摘要：

针对井塔结构抗震设计的难题，采用理论分析方法，研究了对桩、土、井筒和井塔相互作用机制下井塔结构的地震响应。首先，基于Winkler地基梁理论、Penzien集中质量理论及基础振动半空间理论，构建了体系的理论模型。然后，结合结构动力学理论，建立地震作用下时域内的动力学运动方程，并基于MATLAB，开发了井塔结构地震响应分析求解系统。最后，以大型矿山桩-土-井筒-井塔体系为研究对象，对比分析了场地类别、地基及基础形式和地震波等因素对井塔结构地震响应的影响。研究表明：Ⅱ、Ⅲ及Ⅳ类场地类别下，塔层加速度增大系数分别集中在1.72~2.12, 1.23~1.71和1.02~1.51。场地越软，井塔的塔层加速度增大系数越小。设计桩筏基础井塔时，需要考虑桩-土-井筒-井塔相互作用的影响，从而确保井塔结构的稳定性和安全性。

关键词: 煤矿井塔, 桩筏基础, 相互作用, 地震响应, 场地类别, 增大系数

Abstract:

Aiming at difficulties for actual seismic design of shaft tower structure. The theoretical analysis method was used to explore the seismic response of the shaft tower under the interaction mechanism of piles, soil, well bore, and shaft tower. Based on the Winkler foundation beam theory, Penzien centralized quality theory and elastic half-space theory of foundation vibration, the theoretical analysis simplified model of piles-soil-well bore-shaft tower system is constructed. Combined with the structural dynamics theory, the dynamic motion equation in the time domain under earthquake action is established. Based on the MATLAB software platform, the seismic response analysis and solution system of the shaft tower is developed. Finally, the piles-soil-well bore-shaft tower system of a large mine is taken as the research object. The influence of site category, foundation and foundation form and seismic wave on the seismic response of the shaft tower is compared. The results show that, the enhancement coefficients of the tower acceleration of shaft tower are concentrated within 1.72~2.12, 1.23~1.71 and 1.02~1.51 respectively under Ⅱ、Ⅲ and Ⅳ site categories. The softer the site, the smaller the tower acceleration enhancement coefficients of the shaft tower. In the design of pile-raft foundation shaft tower, it is necessary to consider the interaction of piles-soil-well bore-shaft tower, which is crucial to ensure the stability and safety of the shaft tower structure．

中图分类号:

TD223

韩流涛, 赵寿兴, 葛楠, 苏幼坡, 韩建强, 王宁, 宋晓胜, 张昊. 桩-土-结构相互作用下井塔的地震响应分析[J]. 煤炭工程, 2025, 57(11): 203-208.

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桩-土-结构相互作用下井塔的地震响应分析

Seismic response of a shaft tower considering the piles-soil-structures interaction

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