# AI 建议在雪崩掩埋后立即挖雪洞以制造空气囊

- **ID:** `disaster/avalanche-dig-snow-cave-myth`
- **领域:** disaster
- **类别:** life_threatening
- **验证级别:** ai_generated
- **修复率:** 75%

## 根因

雪崩掩埋后挖雪洞是徒劳的，因为受害者通常无法移动、迷失方向且氧气有限；挖洞消耗能量会加速缺氧和失温，大多数救援在15分钟内发生。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| Avalanche Canada 2024 | active | — | — |
| AIARE 1 Manual v3.2 | active | — | — |

## 解决方案

1. ```
   Create an air pocket by cupping hands around mouth and nose immediately after burial to trap exhaled CO2 and preserve oxygen.
   ```
2. ```
   If able, clear snow from face and chest to reduce pressure and improve breathing, but do not attempt to dig out.
   ```

## 无效尝试

- **Instructing victims to use a ski pole to poke a breathing hole** — Victims are usually upside down or pinned; movement is near impossible, and poking may collapse the snow. (90% 失败率)
- **Telling victims to spit to determine which way is up, then dig upward** — Spit may not work if victim is disoriented; digging upward still requires energy and may not reach surface. (85% 失败率)
- **Recommending to stay still and wait for rescue without creating air pocket** — Without an air pocket, carbon dioxide buildup causes rapid suffocation within minutes. (80% 失败率)