diff --git a/src/Core/Animation/PathAnimationManager.cs b/src/Core/Animation/PathAnimationManager.cs
index 1fb9408..61ba61c 100644
--- a/src/Core/Animation/PathAnimationManager.cs
+++ b/src/Core/Animation/PathAnimationManager.cs
@@ -558,9 +558,11 @@ namespace NavisworksTransport.Core.Animation
         /// </summary>
         private bool BoundingBoxesIntersectWithGap(BoundingBox3D box1, BoundingBox3D box2, double gap)
         {
-            return !(box1.Max.X + gap < box2.Min.X || box2.Max.X + gap < box1.Min.X ||
-                     box1.Max.Y + gap < box2.Min.Y || box2.Max.Y + gap < box1.Min.Y ||
-                     box1.Max.Z + gap < box2.Min.Z || box2.Max.Z + gap < box1.Min.Z);
+            // 标准AABB碰撞检测：三个轴向都要有重叠才算相交
+            // gap参数将box1向外扩展（每边扩展gap），然后判断扩展后的box1是否与box2相交
+            return box1.Max.X + gap >= box2.Min.X && box1.Min.X - gap <= box2.Max.X &&
+                   box1.Max.Y + gap >= box2.Min.Y && box1.Min.Y - gap <= box2.Max.Y &&
+                   box1.Max.Z + gap >= box2.Min.Z && box1.Min.Z - gap <= box2.Max.Z;
         }
 
         /// <summary>