Urban building piling mud treatment scheme
The treatment of piling mud in urban construction has always been a difficult problem in engineering construction. At present, the commonly used construction piling mud treatment schemes are: sedimentation tank method, natural dehydration method, flocculation treatment method, equipment treatment method, etc. Various schemes have their own advantages and disadvantages, and the specific mud treatment scheme should be decided according to the construction site environment and mud conditions.
Buildings are built on the ground, and the ground has to bear a lot of pressure. It is necessary to ensure that the ground has sufficient strength to resist pressure. This is often difficult to achieve. Therefore, it is necessary to strengthen the ground bearing the building or improve the bearing method of the ground. , so I thought of piling on the foundation, so that most of the weight of the building is transmitted through the piles to a position deep below the ground, because the foundation in this position is much more capable than the ground. In the process of piling, we may have to deal with the mud due to the depth. These muds are a kind of suspension liquid containing a certain amount of fine mud particles in the water. It has a certain viscosity and is difficult to stratify after standing for a long time. What treatment options do we have for these slurries so that these slurries can be effectively treated?
Urban building piling mud treatment plan:
1. Sedimentation tank method: A sedimentation tank is built on the construction site, and the sewage is first discharged into the sedimentation tank to remove suspended solids and oily substances and neutralize them. This method uses the principle of gravity to stop the mud water, so that the large particles in the mud settle and the clear liquid floats up to meet the discharge standard. is a more economical method. However, this method is not suitable for all construction site construction conditions and mud characteristics.
2. Natural dehydration method: In the process of drilling and pouring, the screen is used to separate the small gravel, sand and other solid particles in the mud, and the mud is discharged to the first settling tank, the second settling tank to the third settling tank, and fully precipitated. During the construction process, the first sedimentation tank, the second sedimentation tank and the third sedimentation tank are cleaned in time with excavators, and the cleaned sediment is transported to the evaporation tank.
3. Flocculation treatment method: For the waste mud water, add flocculant to the mud water. Since the mud water is a suspension liquid containing a certain amount of fine mud particles in the water, the polymer flocculant is a kind of water-soluble high polymer. , When it is mixed with mud water, because the flocculant has the functions of bridging, net capture, adsorption and electrical neutralization, it can destroy the stability of mud water, and make mud particles rapidly aggregate and settle from water, so as to achieve mud water separation. Effect.
Treatment of other construction piling mud ballast mixture: 1. The ballast cleaned up in the sedimentation tank is transported to the evaporation tank to allow it to naturally dehydrate and solidify. 2. The dewatered drill slag is transported to the stockyard, or backfilled to the borrow pit. 3. The dry mud formed after natural dehydration and solidification is backfilled in the abandoned mud pool on the spot. 4. The sedimented mud ballast is transported to the evaporation pond, and the clean water is recycled.
At present, compared with other mud treatment schemes, the equipment treatment method is more economical and environmentally friendly in the urban construction piling mud scheme. There are many domestic manufacturers of this type of equipment. BZ Solids Control is one of the mud equipment manufacturers. It is currently engaged in the field of urban construction piling. Many on-site use cases have been accumulated in the production and sales of mud treatment equipment and systems, and customer feedback has been good. It is a good choice for urban building piling mud treatment!