In the past three-dimensional geological modeling process, only vertical geological data, i.e. borehole or profile drawn from borehole, was used as the modeling data source. However, the plane geological map either does not participate in the modeling at all, or only serves as a reference data in the modeling process, and its role is not fully played. In view of the appeal, this paper puts forward a plane section modeling method based on multiple constraints. This method combines the vertical geological data and the horizontal geological data to participate in the modeling work. The surface part of the 3D geological model constructed by this modeling method is completely consistent with the plane geological map. In addition, there are both vertical data source and horizontal data source, which greatly improves the accuracy of the model. In this paper, taking the kangyangju area of Huaying Mountain in Guang’an City as an example, using the plane section modeling method with multiple constraints, the three-dimensional geological model construction of kangyangju area is carried out, which proves that the method is reliable and useful, and is worth popularizing.

在过去的三维地质建模过程中，仅将垂直地质数据（即钻孔或从钻孔中提取的轮廓）用作建模数据源。但是，平面地质图要么根本不参与建模，要么在建模过程中仅作为参考数据，其作用并未得到充分发挥。针对这种吸引力，本文提出了一种基于多重约束的平面截面建模方法。该方法将垂直地质数据和水平地质数据结合起来，参与建模工作。通过这种建模方法构造的3D地质模型的表面部分与平面地质图完全一致。另外，垂直数据源和水平数据源都存在，这大大提高了模型的准确性。