How to Fix Mobile Temporary Toilets
The method for fixing mobile temporary toilets should be selected based on the scenario and requirements. Common methods include expansion bolt fixing, concrete pouring, counterweight block fixing, and professional ground anchor fixing, with specific operations depending on ground conditions and stability requirements.
Expansion Bolt Fixing Method
This method is suitable for hard foundations such as cement or hardened ground. During operation, use a level to position the four corners of the toilet base, mark the drilling positions, and then use an impact drill to drill holes. The hole depth should match the length of the expansion bolts. Place the expansion bolts into the holes and tighten them, ensuring the bolt heads are flush with the ground. Finally, connect the toilet chassis to the bolts through the bolt holes. It is recommended to use 2-4 bolts on each side to distribute the force and enhance stability. Before fixing, check the ground flatness with an error not exceeding 3mm to avoid toilet tilting due to uneven ground; reserve 2-3mm of expansion space when fixing the bolts to prevent bolt breakage due to temperature changes or minor ground settlement.
Concrete Pouring Fixing
This method is suitable for long-term fixing or heavy-duty mobile toilets (such as models with water tanks or large fecal storage devices). Excavate a foundation pit according to the toilet size, lay a 10-15cm thick gravel cushion at the bottom of the pit and compact it, then erect formwork and pour concrete with a strength of C20 or above, inserting a steel reinforcement framework to enhance the foundation strength. After the concrete sets (usually taking 3-7 days), connect the toilet chassis to the foundation through pre-embedded bolts or welding. This method requires prior application for a construction permit and ensures that the ground bearing capacity is ≥5kN/㎡ (the lessor needs to provide a bearing capacity test report) to avoid toilet damage due to foundation settlement.
Counterweight Block Fixing Method
This method is suitable for temporary scenarios or non-hardened ground (such as grass or mud). Place prefabricated concrete blocks or sandbags around the bottom of the toilet, with each block weighing no less than 50kg and the total counterweight needing to be at least 1.5 times the self-weight of the toilet to resist wind or external forces. Wrap the counterweight blocks with waterproof tarpaulin to prevent weight reduction due to rain erosion; if using sandbags, regularly check their integrity to avoid sand loss. This method is simple to operate but requires regular inspection of the counterweight block positions to prevent displacement due to soft ground.
Professional Ground Anchor Fixing
Enhance the bottom stability through expansion screws or counterweight sandbags, with each device recommended to be equipped with 4 fixing points (one at each corner of the toilet), suitable for outdoor scenarios with high wind resistance requirements (such as seaside or mountain tops). The ground anchors should be buried at least 30cm below the ground and use high-strength steel wire ropes or chains to connect the toilet chassis to the ground anchors, with anti-wear gaskets added at the connection points to prevent breakage due to long-term friction.
General Specifications: Before fixing, check the ground bearing capacity, and the lessor needs to provide a test report; after fixing, regularly check the bolt tightness, concrete foundation integrity, and counterweight block positions to ensure long-term stable use of the toilet.
