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为解决厦门怡山商业中心大直径逆作板墙灌注桩施工安全技术难题,采用安全综合施工技术,其创新点在于采用安全亭、可视对讲报警系统、大功率送风机、深层探照灯照明系统及先进安全技术管理理念等。介绍了冲孔桩与逆作板墙深井桩同期施工的安全技术措施、施工作业人员安全监测系统、井下作业紧急逃生安全系统、桩基安全施工技术措施等关键措施。该技术较好地解决了大直径超深逆作板墙深井灌注承压桩施工安全技术问题,保证了桩基安全顺利完成。
In order to solve the construction safety technical problems of the construction of the large-diameter counter-wall cast-in-situ bored pile in Xiamen Yishan Commercial Center, the innovative safety point is to adopt safety booths, video intercom alarm system, high power blower, deep searchlight lighting system and Advanced security technology management concepts. This paper introduces the key measures such as the safety and technical measures for the simultaneous construction of punched piles and counter-sluice deep-well piles, the safety monitoring system for construction workers, the emergency escape safety system for underground operations, and the technical measures for the safety of pile foundations. The technology solves the technical problems of construction safety of deep well perfusion pressure-bearing pile with large diameter and ultra-deep counter-wall, and ensures the safety of pile foundation.