针对大足石刻宝顶山大佛湾北崖研究区域内存在裂隙发育的情况，采用高密度电法与主动源面波法开展地球物理探测，精细刻画裂隙发育情况。研究区域的砂岩质岩体受构造运动与风化作用的影响，裂隙发育显著，威胁石刻本体的稳定性。通过高密度电法测量电阻率分布，识别含水裂隙带，并结合主动源面波法反演剪切波速度场，可以有效评估裂隙的发育程度。结果表明，高密度电法能够准确刻画裂隙的位置和形态，主动源面波法则有效验证了深部岩体的完整性。这两种方法的协同应用，显著提升了裂隙表征精度，为危岩体稳定性评估及后续工程干预提供了坚实的科学依据。 

This study employs Electrical Resistivity Tomography (ERT) and the active surface wave method to conduct geophysical exploration in the northern cliff area of Dafowan, Dazu Rock Carvings, where unloading fracture development is identified, aiming to achieve a detailed characterization of unloading fracture patterns. The 
sandstone rock mass in the study area exhibits extensive fracture development induced by tectonic movements 
and weathering processes, posing a significant threat to the stability of the rock carvings. ERT is employed to 
delineate resistivity distributions and identify water-bearing fracture zones, while the active surface wave method 
is utilized to invert shear wave velocity fields and evaluate fracture development intensity. Results demonstrate that ERT effectively identifies spatial positions and geometric configurations of fractures, whereas the active surface wave method reliably verifies the integrity of deep rock masses. The synergistic application of these two methods significantly improves the characterization accuracy of fracture systems, providing a scientific basis for stability assessment and subsequent engineering interventions of dangerous rock masses.