基于五项因素数据的空气常规潜水作业减压方案优化选择方法

Optimization of conventional diving decompression scheme in complex conditions based on 5 factors

目的:基于5项因素数据(底质较软、水温较低、水流速度较快、潜水员对减压病敏感、重度劳动强度)对空气常规潜水作业减压方案进行优化选择。方法:针对影响减压安全的劳动强度、水流速度、水温、底质及潜水员对减压病敏感性等5项因素进行计算与分析,建立减压方案优化选择方法。结果:建立了针对水下工作时间的修正公式,经铁路大桥桥墩潜水施工作业验证,证明该公式安全可靠。结论:通过综合考虑水温、流速、劳动强度、底质以及潜水员敏感性等因素,对水下工作时间进行修正,从而兼顾了减压效率和潜水员生命安全。

Objective To optimize the decompression scheme of conventional air diving based on the data of 5 factors.Methods Five factors,i.e.bottom material,water temperature,water current velocity,individual susceptibility to decompression sickness,and labor intensity,associated with decompression safety were calculated and analyzed,to select the most optimized decompression scheme.Results A modified formula for the duration of underwater operation was proposed,and it was proved safe and reliable during the underwater construction of railway bridge pier.Conclusion Based on synthetical consideration of various factors,i.e.bottom material,water temperature,water current velocity,individual susceptibility to decompression sickness,and labor intensity,an optimized decompression scheme was gained for balancing the decompression efficiency and the safety of divers by modifying the time duration of underwater operation.