管道穿河埋深综合判定

Integrated to Determine the Buried Depth of River-crossing Pipeline

管道穿河的埋深问题一直是岩土工程勘察的重点问题,埋深过浅会导致洪水来临时,管道被冲刷露出,造成安全问题;埋深过深会增加不必要的经济浪费。但是对于埋深计算,一直没有相关规范出台,实际应用中多是相关经验公式粗略估计。这些经验公式常由于假设或使用条件的限制,存在较大的差异。在综合考虑各公式计算前提的基础上,评判该前提条件对计算结果的影响,并依此锁定埋深计算的上下限之间的差值,为最终可靠的断定埋深提供了重要的参考。

It is a key problem that the buried depth of river - crossing pipeline in geotechnical engineering investigation. The shallower depth will lead to safety problem, basseted by the scouring, when the flood is coming. On the other hand, the deeper depth will caused by the economic waste. As for the calculation of the buried depth has no suitable code but a rough estimate in practical application. These experiential formulas have big difference because they are restricted by the conditions of assumption and application. Based on the precondition of considering formulas calculation, evaluate its influence to the calculation results and lock the difference value of buried depth calculation between upper and lower limit. It will provide an important reference to determine the buried depth of river- crossing pipeline.