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Requirements for Embedding Benchmark Monuments or Marks for Land Subsidence Monitoring

2016-05-20 713 0人评论

a) Leveling benchmarks shall be embedded in the surface soil and located at places convenient for long-term preservation and use.
b) They shall be stable and durable, corrosion-resistant, erosion-resistant, and capable of maintaining vertical stability.
c) The bottom of the benchmark monument shall be embedded below the frost line, and a concrete foundation shall be poured.

Zhengzhou Zhongzhou Avenue Viaduct over Longhai Railway Expected to Complete Bridge Deck Construction by End of June

Locations Where Leveling Points for Land Subsidence Monitoring Must Not Be Selected

Requirements for Embedding Benchmark Monuments or Marks for Land Subsidence Monitoring

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Requirements for Embedding Benchmark Monuments or Marks for Land Subsidence Monitoring

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