Construction method of underground structures of seacoasts and artificial islands
An underground structure and construction method technology, which is applied in the fields of construction engineering, port engineering, underground engineering, and highway engineering, can solve the problems of repeated construction steps, low construction efficiency, and long construction period, so as to reduce construction difficulty and project cost. Better safety and quality, lower bearing capacity requirements
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[0035] The present invention is implemented according to the following steps, and the construction sequence can be seen in the diagrams in Figure 4:
[0036] (1) In such Figure 4a Set up cofferdams along the coastline as shown in Figure 4b ), temporary cofferdams and permanent cofferdams can be used. Cofferdam types include supporting cofferdams 11 such as bagged sand, large sand bags, riprap, clay dam cofferdams, etc., which are only supporting The effective cofferdam and the surrounding coast of this section shall be treated with anti-seepage treatment, and the filter layer 12 (such as Figure 1a Shown), or high-pressure jet grouting or grouting to form a continuous curtain 13 (such as Figure 1b Shown), concrete or clay to construct underground continuous walls to form a continuous impervious curtain.
[0037] The cofferdam can also be used such as figure 2 The supporting and water-stop structure cofferdam 14 shown is, for example, steel sheet piles, large-diameter cylindrical ...
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