Introduction To The Construction Method Of Membrane Structure Sewage Pool

Membrane structure sewage pool is a new type of sewage treatment method, which has the characteristics of novel structure, beautiful shape, convenient installation and maintenance, etc., and can give full play to the advantages of membrane structure building. The processing and installation of the membrane are carried out in the factory, which saves the construction time of the project to a large extent and ensures the smooth progress of the processing work. Specifically, the construction method of membrane structure sewage tank is introduced:

The material selection and design should be carried out before the construction of the membrane structure sewage tank, and the membrane material is divided into two parts: base cloth and coating. The base cloth is mainly made of polyester fiber and glass fiber materials; The coating materials are mainly polyvinyl chloride and polytetrafluoroethylene. The commonly used membranes are polyester fiber coated with polyvinyl chloride and glass fiber coated with polytetrafluoroethylene. The design of the wastewater tank cover mainly includes four major problems, such as shape design, initial equilibrium shape analysis, load analysis, and tailoring analysis, and determines the shape and size of the building plane, three-dimensional modeling, and clearance volume through the shape design, and determines the coordinates, structural form, membrane material and construction plan of each control point.

1. After the construction of the foundation project or the main structure is completed, the membrane support structure is installed, and the local paint repair and fire prevention treatment are completed;

2. Measure the geometry of the support structure and the connecting nodes, and compare them with the design values, and make necessary corrections to the form-finding results; According to the modified shape, the cutting design is carried out, and the membrane surface is processed and made; If the production is completed before the completion of the supporting structure, the deviation should be corrected by other schemes, such as replacing the specifications such as connectors;

3. Fold and package the processed film in accordance with the requirements of the construction organization design, and mark it; Transportation to the installation site;

4. Clean up the site and lay protective materials on the ground; Explain the process and division of labor to the workers; Unfold the membrane surface, such as punching holes on the membrane surface, threading steel cables, installing membrane angle gusset plates or membrane splints, etc.; Tie the rope net on the support structure, and then tie the membrane surface after the temporary support is deployed;

5. After the preparation is ready, the hoisting machinery is in place, lifted and temporarily fixed on the diagonal point;

6. The tension is gradually balanced, and the pre-tension is applied to the membrane surface;

7. Carry out local tension adjustment on the corners and folds, and finally fix the membrane surface and nodes; Complete rainwater system installation and waterproofing covering, etc.