摘要
本研究基于新疆博乐32井构建高分辨率温度梯度观测系统,对井孔垂向热场分异及其构造控制机制进行分析,以探究裂隙型基岩井孔的温度传感器优化布设。结果表明,0~105 m深度呈现三层温度场结构:浅层正梯度由完整花岗岩热传导主导,中层负梯度极值反映破裂带前缘冷水渗入效应,深层弱正梯度表征裂隙充填区热动态平衡;强破裂带顶部渗透性突变形成温度敏感界面,完整岩体段具有稳定热传导特征。研究建议采用55~75 m与87 m双探头布设方案,以兼顾背景场监测与构造响应捕捉需求。
In this study,a high-resolution temperature gradient observation system is constructed based on the Xinjiang Bole-32 well.The purpose of this study is to reveal the vertical thermal field differentiation of boreholes and its structural control mechanism,and to provide a scientific basis for the optimal layout of temperature sensors for fractured bedrock boreholes.The results show that:The 0~105 m depth presents a three-layer temperature field structure:the shallow positive gradient dominated by the heat conduction of the intact granite,the negative gradient extreme value in the middle layer reflecting the cold water infiltration effect at the leading edge of the rupture zone;the weak positive gradient in the deep layer characterizing the thermal dynamic equilibrium of the fracture filling area;The permeability mutation at the top of the strong fracture zone forms a temperature-sensitive interface,and the complete rock mass section has stable heat conduction characteristics.It is recommended to adopt a 55~75 m and 87 m double probe layout scheme,taking into account the needs of background field monitoring and structural response capture.
作者
景孝复
王吉利
刘彦慧
邢绍志
杨斌
JING Xiaofu;WANG Jili;LIU Yanhui;XING Shaozhi;YANG Bin(Bole seismic station of Earthquake Agency of Xinjiang Uygur Autonomous Region,Bole,Xinjiang 833400,China)
出处
《山西地震》
2025年第3期14-18,24,共6页
Earthquake Research in Shanxi
基金
中国地震局监测·预报·科研三结合课题(CEA-SJH-202501072),新疆地震青年科学基金课题(202524)。
关键词
新疆博乐32井
井水温
水温梯度
观测实验
特征分析
Xinjiang Bole-32 well
well water temperature
water temperature gradient
observational experiments
feature analysis
