Structure for improving slope-distance lofting efficiency and precision of mountain photovoltaic irregular terrain

Abstract

The utility model provides a structure for improving slope distance lofting efficiency and precision of mountain photovoltaic irregular terrains, which comprises a plumb bob, a first vertical rod and a second vertical rod, the first vertical rod and the second vertical rod are respectively arranged at a head pile position and a tail pile position, and the two vertical rods are respectively provided with a circular level bubble. A height-adjustable horizontal pull rope is arranged between the first vertical rod and the second vertical rod, first scale marks are arranged on the outer surfaces, where the horizontal pull rope is fixed, of the first vertical rod and the second vertical rod, and a plurality of positioning marks are arranged on the horizontal pull rope at intervals according to the length of the pile foundation design interval. The ground slope measuring and setting-out device is simple in structure, the situation that original ground slope measurement and calculation are carried out firstly and then setting-out is carried out is avoided, the steps of measuring and setting-out are greatly reduced, efficiency is improved, and the structure guarantees the precision of measuring and setting-out.

Description

Technical Field

[0001] The utility model relates to the field of mountain photovoltaic auxiliary layout construction, in particular to a structure for improving the efficiency and accuracy of slope distance layout of irregular terrain of mountain photovoltaic. Background Art

[0002] As the number of photovoltaic power stations increases year by year, land resources with good sunshine, flat terrain and good construction conditions are becoming increasingly scarce. Land with inferior construction conditions such as agriculture, lakes, and mountains is gradually becoming a land construction resource for photovoltaic power stations. In particular, the construction of mountain photovoltaic power stations has gradually increased in recent years.

[0003] A mountain photovoltaic power station refers to a photovoltaic power station built under complex terrain conditions such as mountains and hills. The construction surface is uneven, with different orientations, and there are gullies in some parts. The usable area of ​​the terrain is irregular and scattered.

[0004] Normally, the array layout in the general layout drawing of the photovoltaic power station design is a standard array form when the ground is horizontal. When there is a slope in the north-south and east-west directions on site, the relative distance of the foundation in the array needs to be laid out and positioned by on-site construction personnel according to the slope. Conventional RTK measurement or total station measurement can only lay out the horizontal projection distance. It is necessary to first measure the ground slope and convert it into the horizontal projection distance through calculation before laying out. This increases the number of laying out steps, low efficiency, and increased probability of error. Therefore, how to quickly and accurately locate tens of thousands or even hundreds of thousands of pile positions with large height differences has brought new challenges to the measurement and laying out work. Utility Model Content

[0005] In view of the above-mentioned deficiencies of the prior art, the utility model provides a structure for improving the efficiency and accuracy of slope distance staking out in irregular terrain of mountain photovoltaic industry. The structure is simple, the simplification of staking out steps, and the improvement of staking out efficiency and accuracy.

[0006] The technical solution provided by the utility model is a structure for improving the efficiency and accuracy of slope distance layout of irregular terrain of mountain photovoltaic industry, including a plumb bob and a first upright pole and a second upright pole respectively arranged at the first pile position and the last pile position, circular level bubbles are installed on the two upright poles, a horizontal pull rope with adjustable height is arranged between the first upright pole and the second upright pole, first scale lines are arranged on the outer surfaces of the first upright pole and the second upright pole at which the horizontal pull rope is fixed, and a plurality of positioning marks are arranged on the horizontal pull rope at intervals according to the length of the designed spacing of the pile foundation.

[0007] Furthermore, the first and second vertical poles each include a soil-entering tip and a vertical pole body, and a second scale line for observing the depth of the vertical poles inserted into the soil is arranged on the lower outer surface of the first and second vertical poles.

[0008] Furthermore, a fixing portion is sleeved on the first vertical pole, one end of the horizontal pull rope is rigidly connected to the fixing portion, and the other end is inserted through a hole of a wire rope locker installed on the second vertical pole, then goes around the second vertical pole once and comes out from another hole and is fastened and fixed with a cross screw.

[0009] Furthermore, the circular level bubble is located between the tip of the soil entry point and the fixing portion or the wire rope locker, and is fixedly connected to the upright body.

[0010] Furthermore, the burying tip and the pole body are welded into a whole, and the pole body and the burying tip are made of stainless steel with a diameter of 1cm-3cm.

[0011] Furthermore, the horizontal pull rope is a steel wire rope, and the diameter of the steel wire rope is 1.5mm-3mm.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] (1) The circular level bubble of the utility model ensures the verticality of the pole, the scale line ensures the height of the horizontal pull rope from the ground, and the positioning mark ensures the accuracy of the distance between the foundations. The three together ensure the relative distance between the foundations in the array and improve the measurement and layout accuracy.

[0014] (2) The utility model has a simple overall structure and is easy to construct. While ensuring the accuracy of measurement and layout, it realizes the transformation of most professional surveyors into ordinary workers, improves the utilization efficiency of professional surveyors, and fully releases their social value. At the same time, it reduces the labor cost of enterprises and improves benefits. At the same time, it avoids the need to first conduct field original ground slope measurement, then conduct internal calculations, and finally conduct field layout. The traditional measurement and layout work that requires two field operations and one internal operation to complete is optimized to only require one field operation to complete the measurement and layout work, greatly reducing the steps of measurement and layout, avoiding the risk of errors in the transmission and calculation of measurement data and calculation results, shortening the construction period, and improving efficiency. It is worth promoting and applying for measurement and layout projects such as mountain photovoltaics with irregular terrain, large elevation differences, and tens of thousands or even hundreds of thousands of foundations in the array. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a flow chart of carrying out lofting construction using the utility model;

[0017] Figure 3 It is a sequence diagram of setting out in a string of the utility model;

[0018] In the figure: 1—first vertical pole, 101—point of entry into the soil, 102—vertical pole body, 2—second vertical pole, 3—plumb bob, 4—circular level bubble, 5—horizontal pull rope, 6—first scale line, 7—positioning mark, 8—second scale line, 9—fixing part, 10—wire rope locker, 11—cross screw, 12—original ground soil. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific implementation methods, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and should not be understood as limiting the present invention. In order to better illustrate the specific implementation methods of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific implementation methods of the present invention, all other specific implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "front", "rear", "upper", "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1The structure shown is used to improve the efficiency and accuracy of slope distance layout of irregular terrain of mountain photovoltaic, including a plumb bob 3 and a first upright pole 1 and a second upright pole 2 respectively arranged at the first pile position and the last pile position, a circular level bubble 4 is installed on both upright poles, a horizontal pull rope 5 with adjustable height is arranged between the first upright pole 1 and the second upright pole 2, the outer surfaces of the first upright pole 1 and the second upright pole 2 where the horizontal pull rope is fixed are provided with first scale lines 6, and a plurality of positioning marks 7 are arranged on the horizontal pull rope 5 according to the length of the designed spacing of the pile foundation.

[0023] The first upright pole 1 and the second upright pole 2 both include a soil-penetrating tip 101 and a upright pole body 102 . The lower outer surfaces of the first upright pole 1 and the second upright pole 2 are both provided with second scale lines 8 for observing the depth of the upright poles inserted into the soil.

[0024] A fixing portion 9 is sleeved on the first vertical pole 1, one end of the horizontal pull rope 5 is rigidly connected to the fixing portion 9, and the other end is inserted into a hole of a wire rope locker 10 installed on the second vertical pole 2, then goes around the second vertical pole 2 once and comes out from another hole and is fastened and fixed by a cross screw 11.

[0025] The circular level bubble 4 is located between the soil-penetrating tip 101 and the fixing portion 9 or the wire rope lock 10 , and is fixedly connected to the upright body 102 .

[0026] The burying tip 101 and the pole body 102 are welded into a whole, the pole body 102 and the burying tip 101 are made of stainless steel with a diameter of 1cm-3cm, and the inner diameter of the fixing part 9 should be 2mm larger than the outer diameter of the pole body 102. The horizontal pull rope 5 is a steel wire rope with a diameter of 1.5mm-3mm.

[0027] The utility model is suitable for foundation surveying and setting out in photovoltaic fields with irregular mountainous terrain with gradually changing surface slope, clay layer, gravel layer, sandy soil layer, grassland, low shrubs, sandy land, large area, large number of pile foundations and densely packed. The construction process of the utility model is that professional surveyors first use RTK to measure and set out the corner piles of the foundation in the string, and then ordinary workers use the rope method to locate and set out the remaining piles, and correct the change in the position of the tail pile caused by the change in terrain slope.

[0028] like Figure 3 As shown, in the embodiment, the stakeout should be strictly carried out according to each row of piles in a single group string as a unit, and the stakeout should be carried out in one direction from one end to the other end, and it should not be carried out in both directions at the same time.

[0029] The embodiment is specifically implemented for a certain mountain photovoltaic surveying and setting out project. The project overview is as follows: a photovoltaic site covers an area of ​​about 13,900 mu, with an altitude of about 4010m-4570 within the site, a relative height difference of about 560m, and a site slope of generally 5-20°, which is steeper in some areas and can reach more than 30°-35°. The terrain is generally high in the middle and low on the east and west sides, and the terrain is undulating. The AC side capacity of the photovoltaic field is 264.6MW, and the DC side capacity is 296.6544MWp. The photovoltaic module support foundation type is a micro steel pipe pile foundation. There are 2 rows of piles in each string, and each row has 5 pile foundations, totaling 212,160 pile foundations. The number of pile foundations is large and dense. The distance between adjacent piles in each row of pile foundations is 3.2m with an oblique length as a fixed value, and the horizontal projection length is a variable 3.2*cos[arctan(ix)], where ix is ​​the site slope. The surface layer of the site is 0.3-0.5m of cultivated soil, and the vegetation inside the site is mainly grass, supplemented by low shrubs 20-40cm high.

[0030] Method 1 is to use RTK measurement and staking out. Method 2 is to use the structure of the utility model for improving the efficiency and accuracy of slope distance staking out of irregular terrain of mountain photovoltaics for staking out. The number and spacing of the positioning marks on the wire rope are made according to the design drawing. There are as many positioning marks as there are piles between the first and last piles. In this embodiment, the positioning marks 7 are located on the wire rope with a spacing of 3.2m. The steps of staking out using the utility model are as follows: Figure 2 As shown,

[0031] Step 1: Based on the pile position coordinates in the design drawing, first use RTK to stake out the first and last two piles in a row of piles in the string and mark them;

[0032] Step 2: According to the pile positions laid out in step 1, the first vertical pole 1 and the second vertical pole 2 are hammered into the original ground soil 12 by external force, and then the verticality of the vertical poles is corrected by using the circular level bubble 4;

[0033] Step 3: Install the horizontal pull rope 5 on the vertical pole and calibrate the height of the horizontal pull rope 5 through the scale line;

[0034] Specifically, the height of the horizontal rope 5 should be controlled at 50 cm from the ground. Because the geology of each location is different, in order to ensure the stability of the pole, the depth of the pole into the soil is also different. Therefore, it is necessary to first drive the pole into the soil, read the second scale line 8 at the tip 101 of the soil, calculate the position of the horizontal rope, and then adjust it according to the first scale line 9 above;

[0035] Step 4: According to the positioning mark 7 on the horizontal pull rope 5, use the plumb bob 3 to position, gradually determine the positions of the remaining piles starting from the first pile position and correct the change in the tail pile position caused by different terrain slopes.

[0036] When positioning the plumb bob 3, the worker holds the plumb bob's wire end, places the wire next to the positioning mark 7, and lets the plumb bob 3 fall freely. The position pointed by the hammer tip is the positioning position. The spatial position relationship is: the worker holds the plumb bob at the top, the positioning mark is in the middle, and the plumb bob is at the bottom.

[0037] The structure of the utility model is used to improve the efficiency and accuracy of mountain photovoltaic measurement and layout, and has achieved good results. After repeated measurements, it was found that the deviations of the pile position layout of the project were within the allowable range of the design and specifications. After the photovoltaic brackets and components of the project were installed, the linearity was beautiful, and the deviations of the same group of components and adjacent components met the design and specification requirements. Combined with the embodiments, the structure and construction method of the utility model are compared with the traditional RTK measurement and layout method:

[0038] (1) Cost: The implementation of the project requires the completion of the stakeout of 3,000 pile foundations every day. The traditional RTK stakeout method requires a total of 14 professional surveyors and 7 RTK surveying instruments; the implementation of the project using the structure and method described in the utility model requires a total of 4 professional surveyors, 4 ordinary workers, 2 RTK surveying instruments, and 2 sets of the rope-drawing tooling structure described in the utility model. The salary of professional surveyors is 300 yuan / day, the salary of ordinary workers is 200 yuan / day, the RTK surveying instrument is rented at 1,000 yuan / set / month, and the rope-drawing tooling structure is rented at 50 yuan / set. Compared with the traditional RTK measurement method, the implementation of the project using the utility model saves at least 2,267 yuan / day in engineering cost, and a total of 160,299 yuan in engineering cost;

[0039] (2) In terms of construction period, the utility model combines the rope method with RTK measurement. After professional surveyors have completed the verification of the corner piles of the foundation in each group, they can carry out the measurement and layout of the foundation in the next group, and ordinary workers will carry out the measurement and layout of the remaining foundations, thus realizing streamlined operation, improving labor production efficiency, shortening the construction period, and establishing a standardized measurement and layout process;

[0040] (3) Accuracy: The utility model combines the rope method with RTK measurement, avoiding the need to first conduct field original ground slope measurement, then conduct indoor calculations, and finally conduct field layout. The traditional measurement and layout work that requires two field operations and one indoor operation to complete is optimized to only require one field operation to complete the measurement and layout work, greatly reducing the steps of the measurement and layout process, avoiding the risk of errors in the transmission and calculation of measurement data and calculation results, shortening the construction period, and improving efficiency.

[0041] Comprehensive comparison shows that the implementation of the project using the utility model has obvious advantages over the traditional RTK method in terms of cost, measurement and layout efficiency, and measurement and layout accuracy. The comprehensive benefits of using the utility model are significantly improved.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for improving the efficiency and accuracy of slope distance setting out of irregular terrain for mountain photovoltaics, characterized by: The utility model comprises a plumb bob (3) and a first vertical pole (1) and a second vertical pole (2) respectively arranged at the first pile position and the last pile position, wherein a circular level bubble (4) is installed on both vertical poles, a horizontal pull rope (5) with adjustable height is arranged between the first vertical pole (1) and the second vertical pole (2), first scale lines (6) are arranged on the outer surfaces of the first vertical pole (1) and the second vertical pole (2) at the locations where the horizontal pull rope is fixed, and a plurality of positioning marks (7) are arranged on the horizontal pull rope (5) at intervals according to the length of the designed spacing of the pile foundation.

2. A structure for improving the efficiency and accuracy of slope distance setting out of irregular terrain for mountain photovoltaics according to claim 1, characterized in that: The first vertical pole (1) and the second vertical pole (2) both comprise a soil-penetrating tip (101) and a vertical pole body (102); and second scale lines (8) for observing the depth of the vertical poles inserted into the soil are arranged on the lower outer surfaces of the first vertical pole (1) and the second vertical pole (2).

3. A structure for improving the efficiency and accuracy of slope distance setting out of irregular terrain for mountain photovoltaics according to claim 2, characterized in that: A fixing portion (9) is sleeved on the first vertical pole (1), one end of the horizontal pull rope (5) is rigidly connected to the fixing portion (9), and the other end is inserted through a hole of a wire rope locker (10) installed on the second vertical pole (2), then goes around the second vertical pole (2) and comes out from another hole and is locked and fixed by a cross screw (11).

4. The structure for improving the efficiency and accuracy of slope distance setting out of irregular terrain for mountain photovoltaics according to claim 3, characterized in that: The circular level bubble (4) is located between the tip (101) of the soil entry point and the fixing portion (9) or the wire rope lock (10), and is fixedly connected to the upright pole body (102).

5. The structure for improving the efficiency and accuracy of slope distance setting out of irregular terrain for mountain photovoltaics according to claim 2, characterized in that: The burying tip (101) and the pole body (102) are welded into a whole; the pole body (102) and the burying tip (101) are made of stainless steel and have a diameter of 1 cm to 3 cm.

6. The structure for improving the efficiency and accuracy of slope distance setting out of irregular terrain for mountain photovoltaics according to claim 1, characterized in that: The horizontal pull rope (5) is a steel wire rope, and the diameter of the steel wire rope is 1.5mm-3mm.

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