Beijing Sewage DN1600 Small Manhole Cement Pipeline Rehabilitaion
2026-05-22
Beijing Sewage DN1600 Small Manhole Cement Pipeline Rehabilitaion
Project Location: Shunyi District, Beijing
Pipeline Specification: DN1600 concrete pipeline
Manhole Condition: Non-standard small-sized manhole chamber with a manhole opening of only 680mm, narrower than conventional standard size
Burial Depth: Pipeline burial depth exceeds 5 meters
Key Challenges:
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Limited construction space caused by small non-standard manhole (680mm opening) matching large-diameter (DN1600) pipeline
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Difficult working conditions due to ultra-deep pipeline burial depth of over 5 meters
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Tight and urgent project schedule requiring temporary on-site adjustment of the original repair process
