Milling and forming system of gravity type wharf foundation bed and construction method of gravity type wharf structure

Abstract

The invention discloses a milling forming system of a gravity wharf foundation bed. The milling forming system of the gravity wharf foundation bed comprises an over-water construction work platform erected above a seabed to be processed, a longitudinal moving rail arranged on the surface of the over-water construction work platform, a moving trolley moving on the longitudinal moving rail, a transverse moving rail arranged on the surface of the moving trolley and a milling trolley moving on the transverse moving rail. The bottom of the milling trolley stretches towards the seabed to form a milling machine tool bar, a milling tool bit is mounted on the bottom of the milling machine tool bar, and the milling machine tool bar can move in the vertical direction. The milling forming system of the gravity wharf foundation bed is a technology for directly carrying out mechanical milling to form the surface of the foundation bed on the seabed, is suitable for establishing a gravity wharf structure on areas with shallow burial depth of bed rock, or areas with the bed rock exposed or coral reef areas, and has the advantages of being efficient, fast and low in cost by adjusting measures to local conditions.

Description

technical field [0001] The invention relates to a construction technology of a gravity type wharf structure. Background technique [0002] Conventional gravity wharf structures are composed of foundation trenches excavated on the seabed, riprap foundation beds, gravity components, unloading plates, parapets and other structures. For the excavation of foundation trenches, grab dredgers and cutter suction dredgers are often used to excavate foundation trenches. Due to different geological structures, the amount of dredging is generally large. If a relatively hard geological structure is encountered, it is necessary to supplement water operations such as blasting and clearing reefs. Since the construction equipment for excavating the foundation trench is a floating ship on water, the forming accuracy of the foundation trench is relatively low, and the ultra-wide and ultra-deep orders are more than 0.5m. Therefore, even if it is a relatively hard geological structure, the found...

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Problems solved by technology

[0005] It is difficult to use conventional dredgers for water excavation, but the construction efficiency of bored piles is relatively low, consumes a lot of resources, the construction work area is large, there are many auxiliary work procedures, and the environment is polluted. It is rarely used, and it cannot adapt to the requirements of efficient, fast, large-scale construction and rapid construction of islands and reefs

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