doi:10.16186/j.cnki.1673-9787.2020.6.6

Received:2020/02/20

Revised:2020/04/26

Published:2020/11/15

Nonlinear study on the response of mine water inflow to atmospheric precipitation

LI Jianlin1,2, WANG Shuwei1, WANG Xinyi1,2, CUI Yanhua1

1.Institute of Resources & Environment， Henan Polytechnic University Jiaozuo  454000 ， Henan， China；2.Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region， Henan Province， Jiaozuo  454000 ， Henan， China

Abstract:Mine water inflow is an important basic index of coal mine safety production. The quantitative research of the relationship between deep mine water inrush， surface water and groundwater has been a difficult problem in the study of hydrological process. The Mann-Kendall test， R/S analysis， GM （1 ，2 ） model and onsite analysis method were used to study the response of mine water inflow to the change of precipitation in Pingmei No.7 Mine. The results showed that ： （1） The Hurst index of precipitation series was 0. 367 7 ， which had an inverse persistence and its average cycle was 5 months； （2） The Hurst index of the water inflow series was 0. 897 3 ，which had a positive persistence and the average cycle period of mine water inflow series was 20 months. Precipitation impact on mine water inflow would be 1.5 ~3 months later. On this basis， a GM （1 ，2） prediction model of mine inflow was established， and the prediction accuracy reached 94. 25% . This model had reference value for the same type of mine to establish the water inflow prediction model.

Key words:mine water inflow;atmospheric precipitation;Mann-Kendall trend test;R/S analysis;GM （1,2） prediction model

矿井涌水对大气降水响应的非线性研究_李建林.pdf