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2020
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Invention
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Local repair method combining internally bonded cfrp and polymer grouting for cracks in drainage ... |
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Invention
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Support tool and back-pressure grouting device for leakage repair of inspection well and repair m... |
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Invention
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Trenchless methods for forming curved hole channel with steel sleeve and pipeline lifting. Trench... |
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Invention
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Detecting and repairing method for external diseases of buried drainage pipeline. A method for de... |
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Invention
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Track-type jet grouting integrated system. A track-type shotcrete integrated system includes: a p... |
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Invention
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Trenchless integrative repair method for concrete drainage pipeline with cracking, corrosion and ... |
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2019
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Invention
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Rapid-hardening underground pipeline grouting repair polymer and preparing method. 3, 5 to 15 par... |
