取排水口维护疏浚专项施工技术探讨

Discussion on Special Construction Technology of Maintenance and Dredging of Drainage and Water Intake

摘要

取排水口作为港池取排水系统的关键通道，其维护性疏浚直接受极浅水作业条件、邻近结构物约束及细颗粒泥沙易再沉积等因素影响，施工组织与质量控制难度明显高于一般航道疏浚。本文结合取排水口区域水深浅、作业面狭窄、潮汐窗口受限及回淤动态性强等特点，对取排水口维护疏浚的施工步骤与控制点进行分析，并围绕浅吃水作业平台进场与连续作业组织、高扰动清淤条件下二次回淤控制、临近防波堤及既有构筑物的防碰撞与防冲刷措施等关键环节开展技术探讨，旨在能有效支撑维护疏浚在工期、成本与安全条件下的稳定实施。

Abstract

As critical channels in harbor drainage systems, intake and discharge outlets face unique challenges in maintenance dredging due to extremely shallow water conditions, constraints from adjacent structures, and the tendency of fine sediment to re-deposit. These factors make construction organization and quality control significantly more complex than conventional channel dredging. This paper analyzes the construction procedures and control points for outlet maintenance dredging, considering the shallow water depth, narrow working areas, limited tidal windows, and dynamic backfilling processes in these regions. It also explores key technical aspects, including the deployment of shallow-draft work platforms and continuous operation coordination, secondary backfilling control under high-intervention dredging conditions, and anti-collision and erosion prevention measures for adjacent breakwaters and existing structures. The study aims to provide effective support for the stable implementation of maintenance dredging while ensuring project timelines, cost efficiency, and safety standards.

关键词

取排水口维护 / 疏浚施工 / 施工技术

Key words

Maintenance of intake and discharge outlets / Dredging construction / Construction technology

参考文献

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[3] 徐海峰. 浅析提高港口航道施工技术的意义及疏浚工程施工[J]. 工程建设(维泽科技), 2023, 6(10):154-156.