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Yuyao, Zhejiang: Archaeological site undergoes flood test 2013-10-17

 

Yuyao City, Zhejiang Province, suffered heavy losses during the torrential rain brought by the typhoon “Fete” and flooded the city. The famous Hemudu site also experienced the test of the flood. After two scientific excavations, the Hemudu site has been backfilled. The archaeological work of Hemudu is currently about 7 km away from the Tianluoshan site in the northeast. The site is 5,500 to 7,000 years old. It was discovered by wells in 2001 and officially excavated in 2004. After the excavation, the site of the Luotian Ruins site was built. The venue suffered losses due to the invasion of "Fete". Sun Guoping, a team leader of the archaeological team and a researcher at the Zhejiang Provincial Institute of Cultural Relics and Archaeology, pointed to the roof and told reporters that a color steel tile was blown away by the wind, and the local authorities had begun to renovate. The elevation of the Yuyao Plain is about 2 meters, and the groundwater level is about 1 meter above sea level. At present, the water level of the rice fields outside the venue is higher than that of the stadium. The reporter saw that the archaeological foundation pit of more than 3 meters deep and more than 1,000 square meters is filled with water. The deepest part is about 1 meter. Among them, there are a lot of dry piles of wooden columns, and the side looks like a piece of water. The woods. Sun Guoping said that due to the high groundwater level and the continuous seepage in the pits, they often have to open the pump to drain water. In particular, the heavy rain brought by “Fete” increased the water seepage. If it was not pumped, the entire pit would be flooded. In fact, a certain water table can isolate the air and preserve organic cultural relics. Sun Guoping said that this is the reason why the Tianluoshan site has the most preserved organic cultural relics in the Neolithic archaeological sites of the same period. The previous Hemudu site archaeology also benefited from this. They usually maintain proper water levels and water the wooden stakes exposed to the air to ensure their humidity. Therefore, as long as the pump can start normally, the water seepage outside is not a problem for archaeological work. However, the water seepage is intensified, which also causes local collapse at the edge of the foundation pit. Especially in the southwest corner, water seepage like spring water, a large piece of soil collapsed. However, the accident was that archaeologists found a new large wooden stake in the collapsed part. At that time, the largest wooden pile they found was 2.6 meters high and 0.6 meters square. From the appearance, this "new guy" is not inferior. The Yuyao people of ancient times also struggled with the flood. Sun Guoping said that the Tianluoshan site is actually an ancient village of more than 30,000 square meters. In its late stage, it experienced a process of rising water levels for hundreds of years, and archaeologists discovered obvious flood sediments. The decline of the entire Hemudu culture was related to the floods 5,000 years ago, and the contradiction between people and waters was there.