Sea artificial island structure and construction method suitable for silt foundation

Abstract

The invention provides an offshore artificial island structure and a construction method suitable for silt foundations. The silt foundation is replaced by block stones and foot guards are provided with block stones. A block stone layer is arranged on the upper part of the block stone replacement layer, and a first First-level sea sand filling layer, gravel cushion and first-level geotextile are set between the block stone layer and the first-level sea-sand filling layer; sand pipes are set near the front section of the top surface of the first-level sea-sand filling layer Sea sand filling in the triangular area is set outside the sand tube bag stack, and a transition layer is set. A second-level geotextile is set between the transition layer and the sea sand filling in the triangular area, and the top of the sand tube bag stack; outside the artificial island in the sea A block stone surface layer is set, and a block stone cushion is set between the transition layer and the block stone surface layer. In the construction of the present invention, there is no need to perform grouting or drainage board consolidation treatment on the silt foundation, which reduces project investment and construction period, and reduces environmental pollution; sand pipe bags and sea sand filling layers are arranged according to the filling height, and the layout is flexible. The type is simple and the construction is convenient.

Description

technical field

[0001] The invention relates to a sea artificial island structure and construction method suitable for silt foundation, and is mainly suitable for port channel engineering and water conservancy and hydropower engineering. Background technique

[0002] With the economic development and population growth of coastal cities, more and more areas have obtained land resources by artificially building islands. Grouting or drainage board curing is often required on muddy foundations. Grouting will have a great impact on the seawater environment. The cost of sludge treatment is often relatively high, the construction period is relatively long, and the revetment type is often more complicated, which increases the construction period. and engineering investment. Contents of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems, to provide a structure and construction method of an artificial island on the sea, which is sui...

Images