中文摘要：

针对土方工程的施工具有工期长、劳动繁重和施工条件复杂等特点，以及土方工程的不可验证性，采用虚拟现实技术对其施工过程进行模拟。以某水电工程为例，地形模型采用AutoCAD和3ds max相结合的方式构建，设备模型在3ds max中采用实体模型构建。在运输场景部分，将3ds max中建立的关键帧连同模型一起导入EON并在EON中设置animation节点的参数；在挖土场景，采用多个place节点的方法来实现对挖土机的挖土操作控制；在场景交互部分，采用EON自带的鼠标节点（ClickSensor）和键盘节点（KeyboardSensor）实现场景和用户的交互。研究表明，通过优秀的虚拟现实软件EON将虚拟现实技术应用在土方工程的施工模拟阶段，发现工程中可能出现的质量问题和安全隐患，通过模拟能够更加完善土方工程的施工。经验证，土方工程的虚拟施工能够对真实的土方工程具有一定的指导和借鉴价值。

英文摘要：

In view of the earthwork construction with long duration, heavy and complicated construction conditions, and earthworks that cannot be verified, virtual reality technology is used to simulate the process of its construction. As a hydropower project for an example, AutoCAD and 3ds max combination of building is used in the terrain model and entity model building is used in 3ds max. In the transporting section, 3ds max key frame is built together with the model of import in the EON and the parameters of the ani-mation node is set up;In digging scene, multiple place nodes is used to control the excavator digging operation. In interaction part of the scene, the built-in mouse node （ClickSensor） and keyboard nodes （KeyboardSensor） implementation scenarios and user interac-tion are used. Research shows that through excellent virtual reality software EON virtual reality technology is applied in earthwork construction simulation stage, and possible quality problems and potential safety problems in engineering are found, through the si-mulation earthwork construction of virtual real earthworks is verified to have certain guidance and reference value.