Discrete fracture network (DFN) models are currently a suitable tool representing the anisotropic and discontinuity features of fractured media. Literatures has shown that it is challenging to obtain accurate DFN considering the quantitative spatial correlation in DFN modeling. This study proposes a particle tracking simulator for DFN modeling considering the successive spatial correlation of fracture distribution (DFNSC) by coupling fracture generating method, groundwater flow and solute transport theory, graph theory, and random walk method. By carrying out simulation calculations of seepage field and particle tracking on four DFNs with different distributions, more detailed conclusions have been obtained: The areas with dense fracture distribution have smaller hydraulic gradient than areas with sparse fracture distribution. The high flow velocity basically appears in the areas where the fractures are relatively sparse. Dense areas of fractures hinder the migration of particles. In essence, dense fractures create a low velocity zone, which makes the transport speed of solute particles slower. In the DFN with uniformly distribution and centralized distribution of fractures, the proportion of penetrating particles reaches 100%, whereas it is only 62% in the DFN with fractures gathered on one side. This study can provide reliable technology for the calculation of the seepage field of fractured media and the study of the pollutant migration process.

离散裂缝网络（DFN）模型目前是表示裂缝介质各向异性和不连续性特征的合适工具。文献表明，考虑到DFN建模中的定量空间相关性，要获得准确的DFN具有挑战性。本研究通过结合裂缝产生方法，地下水流和溶质运移理论，图论和随机游走方法，提出了一种考虑DFNC的连续空间相关性的DFN建模粒子追踪模拟器。通过对四种分布不同的DFN进行渗流场模拟计算和颗粒追踪，得出了更详细的结论：裂缝分布较稠密的区域水力梯度要小于裂缝分布较稀疏的区域。高流速基本上出现在裂缝相对稀疏的区域。裂缝的密集区域阻碍了颗粒的迁移。从本质上讲，致密的裂缝会形成一个低速带，这会使溶质颗粒的传输速度变慢。在裂缝均匀分布和集中分布的DFN中，穿透颗粒的比例达到100％，而在DFN中，裂缝集中在一侧的比例仅为62％。该研究可为裂隙介质的渗流场计算和污染物迁移过程的研究提供可靠的技术。这会使溶质颗粒的传输速度变慢。在裂缝均匀分布和集中分布的DFN中，穿透颗粒的比例达到100％，而在DFN中，裂缝集中在一侧的比例仅为62％。该研究可为裂隙介质的渗流场计算和污染物迁移过程的研究提供可靠的技术。这会使溶质颗粒的传输速度变慢。在裂缝均匀分布和集中分布的DFN中，穿透颗粒的比例达到100％，而在DFN中，裂缝集中在一侧的比例仅为62％。该研究可为裂隙介质的渗流场计算和污染物迁移过程的研究提供可靠的技术。