温泉体应变观测数据不同频段影响因素及特征

INFLUENCING FACTORS AND CHARACTERISTICS OF DIFFERENT FREQUENCY BANDS OF THERMAL SPRING BODY STRAIN OBSERVATION DATA

定点形变观测值序列包含的信息有来自地球内部的应力积累和来自地球外部的因素影响,数学物理内涵丰富。基于形变测值序列综合性与可分性的特点,将温泉体应变、气温、水位、气压进行频域分析,然后将时间序列值分解,研究温泉体应变不同频段的影响因素,结果表明:(1)气压对温泉体应变的影响主要有2~4小时和1~2个月之间的月波两个频段;(2)水位为温泉体应变年周期频段的主要影响因素,且它们之间的相位差约为29天;(3)固体潮为影响温泉体应变半日波、日波频段的主要因素。

Deformation observation located on the interface of each circle and layer has not only the information from the stress accumulation inside the earth,but also the influence of various factors outside the earth,which has rich connotation of mathematics and physics.Based on the characteristics of comprehensiveness and separability of deformation measurement value series,this paper analyzes Wenquan boday strain,air temperature,water level and air pressure in frequency domain,decomposes the time series value,and studies the influencing factors of different frequency bands of wenquan body strain.The results show that(1)influence of air pressure on the body strain of wenquan mainly has two frequency bands:Monthly wave between 2~4 hours and 1~2 months;(2)The main factor affecting the annual periodic frequency band of wenquan body strain is the water level,and the phase lags behind the water level by about 29 days;(3)The influence factor of daily wave and semidiurnal wave band of Wenquan body strain is solid tide.