安全方面：存在进入施工现场的工人未带安全冒现象。原因分析：①天气炎热：②现场管理人员松懈。

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　　4、龙门架卷扬机没有专人开；

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• Keep it short and easy to remember.
• Use keywords related to your blog's topic.
• Avoid using hyphens or numbers.
• Make sure it's available (you can use a domain registrar's search tool to check).

　　进度方面：按照施工进度计划，实际进度相对滞后。原因分析：①人工挖孔桩技术难度较大；②六、七份雨水天气较多；③脚手架钢管租赁困难，未能及时投入使用，从而影响了工程进度。