Standard No.:	MT/T 865-2000
English Name:	Measuring method on height of water flowing fractured zone using loses of drilling fluid
Chinese Name:	导水裂缝带高度的钻孔冲洗液漏失量观测方法
Chinese Classification:	D04    Basic standard and general method
Professional Classification:	MT    Professional Standard - Coal
Issued by:	SBCI
Issued on:	2000-1-18
Implemented on:	2001-5-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	3500 words
Price(USD):	100.00
Delivery:	via email in 1~3 business day

本标准规定了在煤矿采空区上方，用钻探的方法，通过观测钻进过程中钻孔冲洗液漏失量及其变化来确定覆岩导水裂缝带高度的常规观则项目，钻孔布置、钻孔施工、钻孔测量段要求、测量方法和数据处理方法等。
本标准适用于煤矿采空区上方通过钻孔冲洗液漏失量观测方法测定覆岩导水裂缝带高度。