煤层开采后会引起上覆岩层移动变形和破坏,形成不同形态的裂隙。竖向贯通裂隙发育高度的确定是煤矿进行防水煤岩柱留设、顶板水害防治措施制定等保障安全开采的基础,同时也是进行保水采煤、瓦斯抽采、覆岩隔离注浆充填等绿色开采技术应用实践所需获取的重要参数。本文查阅总结了导水裂缝带高度预测的主要理论方法,通过对比不同开采条件的预测方法,证实了导高的确定需要考虑岩层结构差异。覆岩关键层结构会对导高发育特征产生影响,基于关键层位置进行导高的判别,可以避免对岩性均化处理的不足,体现工程条件的差异性,在理论和工程中得到了广泛应用。理论的预测方法可为采前安全开采设计和工程探测方案设计提供参考和指导,但由于我国煤矿开采条件的差异性和采后工程状况的复杂性,需要采用不同的探测方法更加准确地获取导高数据并指导工程实践。文章介绍了导高直接探测和间接探测的不同方法及其主要原理,并分析了优势和不足。基于目前的导高确定的理论计算方法和常用的工程探测手段,提出了在采动导水裂缝带高度确定方面需要解决的问题和预期发展的方向,如基于煤系富含水地层探测数据新特征进行导高的准确判断、大埋深特厚煤层采动导高探测关键技术、岩层破裂与位移形变震动之间关联研究、适用于煤系地层大变形和超前移动的光纤监测方法、一孔多用探测和信息协同分析处理等。本文可为同行了解导水裂缝带高度确定方法以及未来的探测研究方向提供一定的参考和借鉴。

Coal mining causes movement, deformation, and damage of the overlying rock, generating in fissures of differ-ent forms. The determination of the height of vertical thorough fissures is the basis for ensuring safe mining in coal mines,such as setting protective water barrier pillars and formulating measures to prevent roof water damage. This height is alsoan important parameter required for the application of green mining technologies such as water-preserved mining, gas ex-traction, and isolated overburden grouting filling. This article summarizes the main theoretical methods for predicting theheight of fractured water-conducting zone. By comparing the prediction methods under different mining conditions, theneed to consider the differences in rock structure to determine the height of fractured water-conducting zone is confirmed.The structure of overburden key strata will have an impact on the developmental characteristics of the height of water-con-ducting fissure zones. Determination based on the location of key strata, which can avoid the shortcomings of lithologicalhomogenization treatment and reflect the differences in engineering conditions, thus has been widely applied in terms oftheory and practice. Theoretical prediction methods can serve as reference and guidance for pre-mining safety design andengineering detection schemes. However, due to the differences in mining conditions and the complexity of post miningconditions in China's coal mines, different detection methods are needed to more accurately obtain data of height of frac-tured water-conducting zone and guide engineering practice. This article introduces the different methods and main prin-ciples of direct and indirect detection of height of fractured water-conducting zone, and analyzes their advantages and dis-advantages.  Based  on  the  current  theoretical  calculation  methods  and  commonly  used  engineering  detection  methods,problems to be solved and expected development directions for determining the height of fractured water-conducting zoneare proposed, such as accurate determination based on new features of detection data in coal measure strata that are rich inwater, key technologies for determination under mining with large depth and thickness of coal, research on the correlationbetween rock strata fracturing and displacement deformation vibration, multi-purpose detection of one hole with collabor-ative analysis and processing of information. This article can provide some reference and inspiration for peers to under-stand the method for determining the height of water-conducting fissure zones and its future directions.