EVALUATION METHOD OF WELL FACILITY AND EVALUATION DEVICE THEREOF

To appropriately evaluate the performance of a well facility.SOLUTION: Provided is the evaluation method of a well facility that has a water collection well 12 and multiple water collection pipes 20 having a lot of water passing holes in the peripheral wall and connected to the water collection well...

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Bibliographic Details
Main Authors YAMAURA KATSUTO, SASAKI TOMOHIRO, KONO MICHITAKA, YAMADA YUKI
Format Patent
LanguageEnglish
Japanese
Published 24.06.2021
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:To appropriately evaluate the performance of a well facility.SOLUTION: Provided is the evaluation method of a well facility that has a water collection well 12 and multiple water collection pipes 20 having a lot of water passing holes in the peripheral wall and connected to the water collection well 12. The evaluation method has the steps of: mounting, to pipelines 52 connected to openings of the water collection pipes 20 and arranged inside the water collection well 12, pressure measuring devices 53 measuring the pressure inside the pipelines 52, flow rate measuring devices 54 measuring water flow rates flowing through the pipelines 52 and flow rate control valves 55 controlling the water flow rates flowing through the pipelines 52; measuring the pressure and the flow rate simultaneously by the pressure measuring device 53 and the flow rate measuring device 54, while controlling the flow rate of the pipeline 52 by the flow rate controlling valve 55 for every water collection pipe 20; and evaluating the relation of a water level difference to the flow rate, by calculating the water level difference of an underground water level of surrounding soil and the well water level based on the measured pressure, and integrating the flow rates of the water collection pipes 20 for every water level difference.SELECTED DRAWING: Figure 2 【課題】井戸設備の性能を適切に評価する。【解決手段】集水井戸１２及び周壁部に多数の通水孔を有し集水井戸１２に連結される複数の集水管２０を備えた井戸設備の評価方法であって、集水管２０の開口部に連結し、集水井戸１２内に配置される管路５２に、管路５２内の圧力を測定する圧力測定装置５３と、管路５２内を流れる水の流量を測定する流量測定装置５４と、管路５２を流れる水量を調整する流量調整弁５５とを取り付ける工程と、集水管２０毎に、流量調整弁５５により管路５２の流量を調整しつつ、圧力測定装置５３及び流量測定装置５４によって圧力及び流量をそれぞれ同時に測定する工程と、測定された圧力に基づく周辺地盤の地下水位との井戸の水位差を算出し、水位差毎に集水管２０の各々における流量を積算して、水位差と流量の関係を評価する工程と、を有する。【選択図】図２
Bibliography:Application Number: JP20190225089