The utility model content
In view of this, be necessary a kind of bracket basis that is used for solar photo-voltaic power generation station to be provided to the problems referred to above.
A kind of bracket basis that is used for solar photo-voltaic power generation station comprises prefabricated center column, pedestal, shell ring and on-the-spot sandstone earthwork two parts of filling; Pedestal is arranged on the bottom of center column, and center column is positioned at the center on pedestal top, and shell ring is arranged on the pedestal; The planar dimension of shell ring is not more than the planar dimension of pedestal, forms cavity between shell ring and center column and the pedestal; Be filled with the sandstone earthwork in the cavity, the weight of the sandstone earthwork constitutes the part of bracket basis overall weight.
Center column is cylindrical shape or prism shape, and pedestal is a kind of in cylindrical shape, prism shape, truncated conical shape, the terrace with edge shape.
Pedestal is two parts that separate with shell ring.
Pedestal and shell ring are parts that are cast in together.
Also be provided with the grouting through hole in the pedestal.
Bracket basis also disposes additional shell ring.
The bottom shape of shell ring is consistent with the bottom shape of pedestal.
Prior art is employed in the scheme on pedestal foot solid basis under the on-the-spot cast-in-place post in a large number; Compared with prior art; Adopt the technical scheme of the utility model can reduce the concrete consumption more than 30%, for the solid bracket basis of the big scale of construction even can reduce concrete amount more than 50%.Because the weight of bracket basis pre-erection itself is less, has correspondingly reduced precast construction amount logistics freight volume on-site installation work amount, and do not reduced the design weight of base integral after banketing in the cavity.The technical scheme of employing the utility model can shorten the construction period of solar photo-voltaic power generation station greatly, also greatly reduces the construction cost of solar photo-voltaic power generation station simultaneously.
The specific embodiment
See also Fig. 1 and Fig. 2; The utility model is used for the pre-erection of the bracket basis of solar photo-voltaic power generation station and is made up of center column 1, pedestal 2, shell ring 4; Pedestal 2 is arranged on the bottom of center column 1, and center column 1 is positioned at the center on pedestal 2 tops, and shell ring 4 is arranged on the pedestal 2; The planar dimension of shell ring 4 is not more than the planar dimension of pedestal 2; Form cavity between shell ring 4 and center column 1 and the pedestal 2, be filled with the sandstone earthwork in the cavity, the weight of the sandstone earthwork constitutes the part of bracket basis overall weight.In use, the stent strut of solar energy photovoltaic panel is installed in the top of center column 1.
Because the bracket basis of the utility model, its facade and section shape are just as in chafing dish, in engineering practice, can be commonly called as is that the chafing dish formula is basic.
Center column 1 can be made the cylinder body shape of various rules, for example cylinder, prism etc.Pedestal 2 also can be made cylinder body shape (as shown in Figure 1) or stage body shape (as shown in Figure 2), for example cylinder, prism, round platform, the terrace with edge etc. of various rules.
Pedestal 2 can be two parts that separate with shell ring 4, also can be parts that are cast in together.
See also Fig. 3 and Fig. 4, in order to reach better result of use, grouting through hole 3 can be set in pedestal 2, the quantity of grouting through hole 3 can be for one or more.When the quantity of grouting through hole 3 when being a plurality of, grouting through hole 3 is symmetricly set on around the center column 1, and is as shown in Figure 5.
In order to reach better result of use, the bottom shape of shell ring 4 is consistent with the bottom shape of pedestal 2, can be circle, rectangle or various regular polygon.
In order to reach better result of use, can dispose additional shell ring in addition, the geomery of additional shell ring is identical with shell ring 4.To add shell ring in use and be enclosed within on the shell ring 4 again that earth fill gets final product.According to the practice of construction needs, also can be on additional shell ring the additional shell ring of socket earth fill more again.
See also Fig. 6, the component on site construction method of the utility model bracket basis comprises the steps (be explanation that example carry out with bracket basis shown in Figure 4) here:
Step 1: smooth processing is carried out in the construction plant, remove the impractical soil in the face of land, it is adhered to specification.According to the floor space size of pedestal 2, clean out the construction plant of respective area, the construction plant will be put in order smooth, removes the impractical soil on the face of land, shown in Fig. 6 a.
Step 2: the pre-erection of bracket basis is placed to the construction plant, and adjustment spatial attitude and position adhere to specification it.Can be artificial or adopt plant equipment that the pre-erection of bracket basis is placed on the construction plant.
Step 3: grouting.Pour into mortar or pea gravel concreten through grouting through hole 3.The through hole 3 that do not need to be in the milk fills up, and fills up in the grouting through hole 3 to get final product more than the 5cm.
Step 4: the sandstone earthwork with the job site is packed in the cavity, and the weight of the sandstone earthwork constitutes the part of bracket basis overall weight.
When big or surrounding environment is very abominable when the solar panel of installing (for example wind load is bigger), can also on shell ring 4, increase one or more additional shell rings again, banket to additional shell ring internal cavity then, basic with further rigid support.
In above step, step 3 neither be necessary, when the ground condition better adopts Fig. 1 or bracket basis pre-constructed unit shown in Figure 2, and the step that just need not be in the milk.
Adopt the bracket basis and the component on site construction method thereof of the utility model,, guaranteed the good combination and the long-term stability of bracket basis and foundation surface because the bracket basis bottom pours into mortar or pea gravel concreten.Because the shell ring 4 of configuration has increased the dress unit weight of soil separately, through the shell ring 4 of different size and the combination of pedestal 3, guaranteed the Base Design weight requirement of different model solar bracket, make things convenient for design and construction.
Prior art is employed in the scheme on pedestal foot solid basis under the on-the-spot cast-in-place post in a large number.Compared with prior art, adopt the technical scheme of the utility model can reduce the concrete consumption more than 30%, for the solid bracket basis of the big scale of construction even can reduce concrete amount more than 50%.Because the weight of New-support basis pre-erection itself is less, corresponding minimizing precast construction amount logistics freight volume and on-site installation work amount, and do not reduce the global design weight on basis after banketing in the cavity.
In addition, in the photo-voltaic power generation station project, the basic the work items construction period has also taken about 30% ~ 60% of total duration of project at present.Adopt the technical scheme of the utility model, can shorten total duration more than 20%, shorten the construction period of solar photo-voltaic power generation station greatly, the generating of can going into operation ahead of time.This is of great benefit to quickening the mobile of construction fund for reducing construction cost.
The basic the work items cost of present solar photo-voltaic power generation station accounts for total investment and is about about 4% ~ 9%, adopts the technical scheme of the utility model, can reduce total investment about 1% ~ 3%.The new forms of energy of putting into effect according to China " 12 planning ", during the solar photo-voltaic power generation station installed capacity will arrive 15GW, gross investment will be above 2,000 hundred million yuan, the total investment of reduction by 1% ~ 3% means the investment of saving billions of units.Solar photo-voltaic power generation station is typical energy-saving and emission-reduction project, but photovoltaic generation industrial chain itself also should be pursued the effect of materials saving energy-saving and emission-reduction.
In sum, New-support basis of the utility model and component on site construction method thereof have produced the techno-economic effect of highly significant.
The above embodiment has only expressed several kinds of embodiments of the utility model, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.