水力劈裂是一种在岩石或土体中由于水位上升引起裂缝产生或扩展的物理现象。土石坝水力劈裂是一个关系大坝安全的复杂问题。本书从水力劈裂的发生条件和机理、判定准则和数值模拟方法三方面研究土石坝水力劈裂问题，并研究了糯扎渡土石坝的抗水力劈裂性能。

本书内容包括：文献综述，水力劈裂发生条件和机理，心墙土体的断裂韧度和抗拉强度、Ⅰ-Ⅱ复合型断裂破坏判定准则，水力劈裂判定准则、数值模拟方法和影响因素。

本书读者包括水利工程的研究者、设计者和建设者，以及对水利工程研究感兴趣的人士。

Hydraulic fracturing is a physical phenomenon in which the crack in rock or soil is induced or expanded by water pressure due to the rising of the elevation of water level. The occurrence of hydraulic fracturing in soil core of earth-rock fill dam is a very troublesome geotechnical technique related to the safety of the dam. This book has focused on the investigation on the problem of hydraulic fracturing in earth-rock fill dams from the three aspects,i.e. conditions and mechanisms of hydraulic fracturing,criterion of hydraulic fracturing,and numerical method on hydraulic fracturing. As an example to analyze the ability of earth-rock fill dam to resist hydraulic fracturing,the Nuozhadu Dam located in Western China is analyzed.

The main content of this book includes review of literature,conditions and mechanisms of hydraulic fracturing,fracture toughness and tensile strength of core soil,fracture failure criterion for core soil under Ⅰ-Ⅱ mixed mode,hydraulic fracturing criterion,numerical method for hydraulic fracturing and factors affecting hydraulic fracturing.

The book's main audiences are the researchers,designers and constructers engaged in water conservancy project,as well as readers interested in the study of water conservancy.