深部围岩调热圈深孔测量方法及参数处理

发布时间：2018-06-09 16:33

  本文选题：深部岩体 + 围岩调热圈　； 参考：《地下空间与工程学报》2017年S2期

【摘要】：深部围岩调热圈参数(半径和温度)的确定是开展热害防控技术研究的基础。笔者提出了一种适用于现场实测的深孔固定埋设式测温方法,给出了孔深预判公式,在调热圈温度与半径一般数学模型基础上推导了调热圈半径计算公式。根据孔深是否满足测量要求,分别讨论各情况下的调热圈温度参数处理计算公式,建议在孔深满足测量要求时调热圈温度采用实测数据计算,在孔深不满足测量要求时调热圈温度采用温度与半径一般数学模型计算。以广西某深部岩体工程为背景,设计了埋深660m处CWSK1、CWSK2两测孔参数。应用深孔固定埋设式测温方法,对测孔进行封孔作业与定期收集深孔温度测量数据。通过对实测数据分析处理,确定出CWSK1测孔和CWSK2测孔的围岩调热圈参数分别为29.8 m、33.45℃与34.3 m、33.31℃。
[Abstract]:The determination of the parameters (radius and temperature) of the heat regulating circle in the deep surrounding rock is the basis of the research on the thermal hazard prevention and control technology. In this paper, a method of fixed embedded temperature measurement with deep hole is presented, and the formula of hole depth prediction is given. Based on the general mathematical model of the temperature and radius of heat regulating coil, the calculation formula of the radius of heat regulating coil is derived. According to whether the hole depth meets the requirement of measurement, this paper discusses the calculation formulas of the temperature parameters of the heat regulating coil in each case, and suggests that the temperature of the heat regulating coil should be calculated by the measured data when the hole depth meets the measurement requirement. When the hole depth does not meet the measurement requirements, the temperature of the heat regulating coil is calculated by the general mathematical model of temperature and radius. Based on a deep rock mass engineering in Guangxi, two pore parameters of CWSK1 and CWSK2 are designed at 660m buried depth. In this paper, the method of deep hole fixed embedding temperature measurement is used to seal the hole and collect the data of deep hole temperature measurement regularly. By analyzing and processing the measured data, the parameters of surrounding rock heat regulating circle of CWSK1 and CWSK2 are determined to be 29.8 m ~ (33.45 鈩，

本文编号：2000389