Page 28 - 인천국제공항 4단계 건설사업 건설지 [브랜드북 영문]

was built on land reclaimed from the sea. However, the weak stratum the site.
for Kansai was about 18 meters compared to 5 meters on average It was the first project to create a seawall in an area with 9-meter tide
for Incheon. Moreover, it was possible to strengthen it with various ranges. For two years, 15-ton dump trucks made 1 million trips dumping

techniques during construction. soil into the sea. The hardest part was the closing levee for the last
Despite varied opposition, the government decided to build the airport, 600 meters. The deadline was approaching, and it would greatly delay
initiating the largest construction project in Korea’s history. This was the the schedule if they passed October, the month with the smallest tide
moment when airport history in Korea changed. variation. 3 tons of rocks were poured in the wire mesh continuously. If

the fast flow of water, of more than 4 meters a second, stops the pouring,
The biggest challenge: seawall construction the wire mesh would be swept away, which would destroy everything.
The site preparation work started with the ground-breaking ceremony on The seawall construction was completed in a month after a series of
November 12, 1992. However, every process encountered difficulties. struggles and challenges.

There was no land route to Yeongjong Island, which was an isolated The site for Incheon Airport was a weak clay layer, so it was necessary
island at that time, so heavy equipment and materials had to be to improve the ground. From the burial layer to the mud flat layer, sand
transported by boat from Wolmido after long waits. The transport path drains and plastic board drains were installed to create a waterway. In
was narrow, and upon arrival, the poor road conditions required large addition, heaps of soil heavier than buildings and aircraft were piled.

equipment to be disassembled and individually transported by truck to This was designed to let the water of the mud flat flow out and induce

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