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在港口航道疏浚施工中,常常会出现作业水域地质为硬质岩礁的情况,这种情形下抓斗挖泥船往往难以挖动,一般会采用炸礁的施工工艺。但炸礁存在安全措施投入大、生态环境破坏大、对周边码头结构产生潜在威胁、报批程序繁琐影响工期等局限性,此时,一种经济、安全、简单的施工工艺可作为替代措施予以考虑,即利用反铲挖泥船疏浚硬质岩礁。本文就作者参与码头工程建设管理的实例,浅析反铲挖泥船在硬质岩礁疏浚中的应用。
In the construction of port waterway dredging, it is often the case that the working water area is a hard rock, in which case the grab dredger is often difficult to excavate and the construction process of the reef will usually be adopted. However, there are some dangers in the construction of the reefs, such as large investment in safety measures, great damage to the ecological environment, potential threat to the structure of the surrounding wharves and cumbersome approval procedures. Therefore, an economical, safe and simple construction process can be considered as an alternative measure , That is, the use of backhoe dredging dredging hard rock reefs. In this paper, the authors involved in the construction of the pier project management examples, analysis of the dredging dredging in hard rock reef dredging applications.