diff --git a/webapp/models/FragmentPool.php b/webapp/models/FragmentPool.php
index 09f62b6a..7e4599cd 100644
--- a/webapp/models/FragmentPool.php
+++ b/webapp/models/FragmentPool.php
@@ -9,7 +9,18 @@ class FragmentPool extends BaseModel {
 
     public static function dropHero()
     {
+        $rows = SqlHelper::ormSelect
+             (myself()->_getMysql($targetId),
+                 't_fragment_pool',
+                 array(
+                     'fragment_type' => 0,
+                     'alloc_time' => 0,
+                 )
+                );
+        if ($rows) {
 
+        }
+        return null;
     }
 
     public static function dropGun()
diff --git a/webapp/services/BattleDataService.php b/webapp/services/BattleDataService.php
index 2ca63bec..7baa4843 100644
--- a/webapp/services/BattleDataService.php
+++ b/webapp/services/BattleDataService.php
@@ -21,10 +21,10 @@ require_once('models/Bag.php');
 require_once('models/Hero.php');
 require_once('models/Gun.php');
 require_once('models/FragmentPool.php');
+require_once('models/RealtimeData.php');
 
 require_once('services/RankActivityService.php');
 require_once('services/FormulaService.php');
-require_once('services/RealtimeData.php');
 
 use mt;
 use phpcommon\SqlHelper;
@@ -33,8 +33,8 @@ use models\Battle;
 use models\Bag;
 use models\Hero;
 use models\Gun;
+use models\RealtimeData;
 use services\FormulaService;
-use services\RealtimeData;
 
 class BattleDataService extends BaseService {