Monitoring method for underground water self-flowing monitoring well

Abstract

The invention discloses a monitoring method for an underground water self-flowing monitoring well. The monitoring method comprises the following steps that 1, civil construction of a monitoring well and a wellhead protection facility foundation is carried out according to a conventional construction method; 2, monitoring equipment is installed on site, specifically, 2.1, an air bag is manufactured, the air bag is placed in a monitoring well pipe and then inflated for temporary sealing, and a well mouth of the monitoring well pipe and a bearing flange are welded or bonded firmly; 2.2, a lower barrel opening of a three-way barrel is connected with the bearing flange, and then a pressure relief ball valve is installed at the position of a side barrel opening of the three-way barrel; 2.3, an upper barrel opening of the three-way barrel communicates with a lower valve opening of a double-clip type ball valve; 2.4, the air bag is deflated and taken out; 2.5, a water level and water temperature probe is installed in the monitoring well pipe to be fixed; 2.6, a waterproof data line plug and an automatic air inlet and outlet valve are installed on the flange cover, and the water level and water temperature probe data line is connected with a water level and water temperature gauge; and 3, a wellhead protection facility is installed. According to the monitoring method for the underground water self-flowing monitoring well, the underground water level, the water temperature and the water quality of a self-flowing well and a seasonal self-flowing well are monitored, and the blank of underground water monitoring of the self-flowing well is filled.

Description

technical field [0001] The invention relates to the field of groundwater monitoring, in particular to a monitoring method for groundwater artesian monitoring wells. Background technique [0002] Groundwater monitoring items mainly include water level, water temperature and water quality. Artesian well means that when the monitoring well is sealed, the monitoring well is filled with pressurized water; when the monitoring well is not sealed, groundwater overflows from the wellhead, and the pressure head has seasonal variation characteristics. [0003] Due to the existence of the pressure head, the monitoring equipment of the non-artesian groundwater monitoring well cannot be used; this is because there is pressurized water in the artesian well, which leads to prominent problems in the fixing, support, installation and construction of the monitoring equipment; at the same time, the gas or vacuum state at the top of the artesian well It has a great impact on the monitoring data...

AI Technical Summary

Problems solved by technology

[0003] Due to the existence of the pressure head, the monitoring equipment of the non-artesian groundwater monitoring well cannot be used; this is because there is pressurized water in the artesian well, which leads to prominent problems in the fixing, support, installation and construction of the monitoring equipment; at the same time, the gas or vacuum state at the top of the artesian well It has a great impact on the monitoring data and directly reduces the accuracy of the monitoring data

Therefore, the monitoring of groundwater in artesian wells has not been reported in the hydrological industry.

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