Soil site dewatering and drainage method for protecting archaeological site in humid environment

Abstract

The invention discloses a soil site dewatering and drainage method for protecting an archaeological site in humid environment. The method comprises the following steps that 1, 1.0m is outwards expanded at the explored peripheral side line of a region requiring archaeological excavation for forming an original state soil separation wall; 2, a sand filling water guide drainage ditch is dug around the separation wall, and a water guide passage easy to underground water flow seepage is formed; 3, the sand filling water guide drainage ditch is provided with a water extraction well; 4, water in the water collecting well is dredged in time. The soil site dewatering and drainage method aims at solving the problem of underground water discharge difficulty in the archaeological site in the cohesive soil region, and adopts a method of building the manual sand filling water guide drainage ditch on the periphery of the archaeological exploration part and building a water collecting well in the sand filling drainage ditch. In-site simulation experiments prove that the method has the advantages that underground water in cohesive soil can be discharged, and in addition, the capillary water movement can be blocked, so that the underground water level can be effectively controlled, the archaeological exploration part water seepage is prevented and controlled, and the smooth proceeding of the archaeological work is ensured. The method can also be used for protecting the archaeological site in humid environment shallow underground-water-bearing regions and preventing and controlling the water seepage in an exhibition hall. The goals of controlling the underground water around the archaeological site regions and preventing and controlling the seepage of the underground water into archaeological pits are achieved.

Description

technical field [0001] The invention relates to the treatment of groundwater, in particular to a method for drainage and drainage of archaeological sites in clay soil areas. Background technique [0002] In the lower reaches of the Yangtze River Basin in my country and the areas to the south, social development has a long history and human activities have left many relics. The natural environment of these areas is characterized by abundant atmospheric rainfall, well-developed rivers and lakes, rich water resources, shallow groundwater burial, and soil Mainly cohesive soil deposited in rivers and lakes. When carrying out archaeological excavations in these areas, the excavation depth of about 1.0m will be disturbed by underground water seepage, and even cause floods in severe cases, making it difficult to carry out archaeological excavations. For this reason, the first method that people think of is to excavate while draining water in the archaeological excavation pit, but...

AI Technical Summary

Problems solved by technology

Due to poor permeability of cohesive soil, the flow of water is dominated by capillary water movement, and the method of drilling wells and pumping water cannot discharge the groundwater contained in it at all, failing to achieve the purpose of controlling the groundwater level in the ruins area

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