| 摘要 |
A sewer chimney system for stabilizing and protecting a chimney pipe interconnecting a service pipe and a main sewer line includes a base for bridging a main sewer line, the base having a hole for accommodating the chimney pipe rising from the main sewer line; a hollow casing vertically mounted on the base and having a lower open end aligned with the hole in the base for receiving the chimney pipe; and having an upper open end for receiving fill about the chimney pipe, the case including a lateral hole for receiving a service pipe for interconnection with the chimney pipe, and a device for attaching the hollow casing to the base for securing it during filling of the casing and during backfilling around the casing.
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