Quality-based payment method after tunnel project acceptance and management device thereof

The invention belongs to the field of road engineering, and particularly relates to a quality-based payment method after tunnel engineering acceptance and a construction engineering quality-based payment management device. The core of the scheme is that an overall construction project contracted by the same construction unit is divided into a plurality of continuous project units, sub-item scoring is carried out according to a primary support project, a waterproof and drainage project and a secondary lining project, each sub-item is endowed with a weight, and then comprehensive evaluation is carried out. In the payment stage, a proportion payment thought is adopted, it is guaranteed that the part which cannot reach the minimum construction quantity preset value cannot obtain output value cashing, and the part which reaches the standard is further subjected to proportion payment according to an evaluation result. Meanwhile, the project amount exceeding the contract agreed part or the part which is high in proj