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管道顶进距离延长后,确定合适的管道允许顶力,已成为管道施工质量的关键。本文着重介绍管道设计允许顶力的计算方法,同时还介绍了管接头有缝隙后的允许顶力是如何折减的。
After the pipe jacking distance is prolonged, it is the key of pipeline construction quality to determine the suitable jacking allowable jacking force. This article focuses on the calculation of pipe jacking allowable jacking forces. It also describes how the allowable jacking forces can be reduced after a joint has been slitted.