Spherical grid construction plan

1. Project overview and overall deployment

The grid adopts a square cone type with positive placement, adopts bolted ball joints, adopts ordinary steel pipes, and adopts horizontal bearings welded on both sides*.

The grid frame adopts polycarbonate roof, adopts the one-way internal drainage method of slope finding with small columns, and the thickness of gutter steel plate is 6mm.

2. Main construction plan and technical measures

The project construction is divided into two phases: factory production and on-site construction and installation. The scaffolding required for the project should be set up on the construction site when the contract takes effect and the installation team’s life and construction preparations should be made.

The site is ready to implement the construction team's construction water and electricity land (house), implement the material hoisting and stacking problem, solve the construction team's accommodation and other living problems, and coordinate with Party A to plan the site work.

3. Construction deployment

A. Preparation work for the construction face

Measuring and setting-off work:

a. Review the size of the surrounding axis;

b. Check the elevation control dimensions of each supporting surface;

c. Carry out pre-construction treatment for those whose column top elevation exceeds the standard to make the support elevation reach the standard requirement.

Scaffolding inspection:

Inspect the scaffold, and clear the poles that protrude the working face and affect the construction to meet the erection requirements.

B. Construction personnel are divided into two types of work, installation and welder, and work together under the unified leadership of the team leader to ensure the smooth completion of the construction task.

4. Raw material supply and quality assurance

The company's raw materials are purchased from suppliers with high reputation and consistent quality. After entering the factory, in addition to the original factory quality inspection form, sampling and re-inspection are required to ensure the quality of raw materials.

5. Packaging and transportation

The grid parts are packaged at the factory, and the rods are packaged in bundles. The finished bolt balls are packed in plastic bags and put into iron baskets. All parts are packed into the warehouse and stacked and labeled. Pay attention to storage during transportation to prevent loss and damage. Grid spare parts are issued with a certificate of conformity when they leave the factory.

6. Construction quality assurance

After the technicians and quality supervisors enter the site, they will carry out axis detection and flatness detection (ie elevation measurement) on the civil support surface, and strictly record the data of each level.

During the installation process, the quality inspector should check the installation position of each grid member and each ball in time, and whether the installation angle is correct. If any problems are found, correct them at any time. At the same time, pay attention to check whether the high* bolts are tightly in place, and pay attention to whether each span is completed Deformation, that is, flatness and verticality, after each installation of a column distance, the axis position should be corrected in time, and the problem should be adjusted in time, so that the error accumulation does not exceed the requirements of the construction range, ensure that one span is installed, one span is qualified, and the support is welded* , It is required to pay attention to the padding of the transition plate and the preform, and the welding seam to ensure the strength.

During the quality inspection process, the quality inspectors are responsible and strictly required to ensure the quality of the project. After the quality inspectors find problems, they must deal with them in a timely manner and do the re-inspection work after the treatment, and make a good quality inspection record and quality summary.

After the installation, the company's quality inspectors will inspect the entire project, check the construction specifications and regulations, do a good job of self-inspection, organize construction materials, make records, summarize construction experience, and assist Party A, design, supervision, and quality inspection Wait for the department to do a good job of acceptance.

7. Quality management measures

The management of construction quality should run through the whole process of the grid construction. This is the core work of quality management. The technical guidance of technicians and the inspection and supervision of quality inspectors should be carried out simultaneously with the construction of the grid. A temporary support column, complete a span, check a span, and solve the problem in time. After get off work, the team leader should make a summary of the work, construction diary and preparations for the next work.