How to calculate the piping of Jiangsu bill of quantities calculation rules?

According to the Code for Valuation with Bill of Quantities of Construction Projects in Jiangsu Province (Version 20 14), the calculation rules of pipeline quantities are calculated according to the dimensions shown in the diagram. Specifically, the length of the pipeline should be calculated according to the dimensions shown in the design, for example:

Various pipelines should be distinguished from different laying methods, laying parts and connection forms, and calculated according to their centerline length.

Pipes with trunking or pipe slots shall be calculated according to the length of the center line between the two slots; The pipeline without pipe groove is calculated according to the size shown in the figure.

Junction box, junction box, column slot tube and jumper have been comprehensively considered in the quota, and are not calculated separately.

It should be noted that the actual calculation needs to be combined with specific drawings and design requirements. If in doubt, it is recommended to consult professional engineers or refer to relevant industry standards.