Prepare the budget estimate or budget of single tunnel project by conventional method.
3.
3 calculation case of increasing cost of reducing efficiency in high temperature tunnel construction 1.
Calculation method of increasing cost for reducing efficiency in high temperature tunnel construction 1.
5.
1.
Specify the norms to be adjusted: all tunnel norms.
Table 3 high temperature section of tunnel high temperature section grade low temperature zone medium high temperature zone high temperature zone ultra-high temperature zone discrimination standard (original formation temperature T) 28 ℃ < T ≤ 37 ℃ < T ≤ 50 ℃ 50 ℃ < T ≤ 60 ℃ T > 60 ℃.
4.
At present, the calculation principle is to count all norms in the tunnel chapter.
View the calculation details.
2.
4.
3.
Among them, the quota of working days and quota of construction machines and tools per shift refers to the consumption of labor and construction machines and tools per shift of all tunnel disciplines in the design budget of tunnel high temperature section.
2.
3.
The additional cost for reducing the efficiency of high temperature tunnel construction is calculated according to the following algorithm according to the grade of high temperature section.
Calculate the total budget paragraph.
Calculation principle of efficiency reduction and increase fee for high temperature tunnel construction 1.
2.
The classification of high temperature section of tunnel is shown in the table below.
2.
It does not include the cost of measures taken for rock burst, high temperature and large deformation of soft rock, nor the cost of idling workers and equipment idle caused by rock burst, high temperature and large deformation of soft rock.
The increase range of high temperature tunnel construction quota is listed in the table below.
Warm tips: the above cases can be found in the group file of QQ group 2465550.
Count the consumption of quota workers and quota construction machines and tools.
Clarify the grade of high temperature section.
(fixed working days) × Unit price of comprehensive labor cost in preparation period × Increase range of fixed working days of high temperature tunnel + number of fixed construction machines and tools × Unit price of construction machines and tools in preparation period × Quota of construction machines and tools for high temperature tunnel (increase range) × (1 + tax rate).
Table 4 increase range of construction quota of high temperature tunnel high temperature section grade low high temperature zone medium high temperature zone high temperature zone ultra-high temperature zone quota work day increase range (%) 11345679 quota construction machine shift increase range (%) 12253852 note: for high temperature tunnel in plateau area, The increase range of high temperature tunnel quota shall be adjusted according to the increase range of construction quota in plateau area in the design estimate (budget) cost quota of Railway Capital Construction Engineering (tzj3001-2017).
Set the items and statistical formula of increasing cost of reducing efficiency in high temperature tunnel construction: {gdwjxf} @ items.
Calculate the increase cost of efficiency reduction according to the formula.
Set tunnel entry parameters: low high temperature zone, medium high temperature zone, high high temperature zone and ultra-high temperature zone.
The increased cost for reducing the efficiency of tunnel construction with rock burst, high temperature and large deformation of soft rock refers to the increased cost caused by the reduction of work efficiency of labor and construction machines and tools affected by rock burst, high temperature and large deformation of soft rock during the construction of main tunnel and auxiliary tunnel.
