How to Relocate the Toilet in Shikumen Buildings

The toilet in Shikumen buildings cannot be directly moved as a whole, but its position can be indirectly adjusted through local renovation or building relocation technology, depending on specific needs and conditions.

If you need to move the local structure of the toilet within a Shikumen building, you can refer to common methods for relocating bathrooms, but note that as a historical protected building, renovations must strictly adhere to preservation regulations:

1. Toilet Displacement Device: Suitable for short-distance (usually ≤1 meter) horizontal movement, connecting the original drain outlet to the new toilet position by extending the sewage pipe. A dedicated displacement device with a pipe diameter ≥110mm should be selected, and a slope ≥2% should be ensured to avoid blockages. This method has the least impact on the building structure but has limited movement distance.
2. Raised Floor Relocation: Suitable for long-distance movement without a backfill layer. By raising the toilet floor (usually by 15-30cm), a new sewage pipe is laid and connected to the main drainage riser. Note the load-bearing limitations of the wooden floor structure in Shikumen buildings, and raising the floor may affect indoor ceiling height and door frame height.
3. New Hole Relocation: Requires drilling a new drainage hole in the floor slab or wall to connect to the drainage system below. This method requires the consent of the downstairs owner and involves structural safety assessments, especially for the brick-wood structure of Shikumen buildings, where construction should be carried out cautiously to avoid damaging load-bearing components.
4. Rear-Discharge Toilet: By changing the toilet's sewage outlet to wall drainage, raising the floor can be avoided, but the position of the wall drainage pipe needs to be planned in advance, and higher flexibility in bathroom layout is required.

If you need to move the entire Shikumen building (including the toilet), you can refer to the engineering case of "Huayanli" in Shanghai Zhangyuan:

• Technical Principle: Using a walking device with 432 interconnected hydraulic units to distribute the load, combined with a central control system to adjust pressure balance in real-time, enabling the overall relocation of a 7,500-ton building. The distributed hydraulic system can handle uneven ground, and the automated compensation mechanism ensures movement stability.
• Implementation Conditions: A professional team is required to assess the building structure, geological conditions, and preservation requirements to formulate a detailed relocation plan. This method is costly and time-consuming, usually only used for overall protective relocation, not suitable for relocating a single toilet.

Precautions: Renovations to Shikumen buildings must be approved in advance by the cultural relics management department or housing management department to ensure compliance with historical building preservation regulations. For local renovations, methods with the least impact on the structure should be prioritized, and professional units should be commissioned for construction.