CN216275869U - Vertical resistance to compression static load test equipment of high pile basis single pile of photovoltaic electric field tubular pile - Google Patents

Abstract

The utility model discloses a vertical compression-resistant static load test device for a single pile of a high pile foundation of a photovoltaic electric field pipe pile, which comprises a main beam, a jack, a load mechanism and a fixing mechanism, wherein the jack is positioned below the main beam; the load mechanism comprises lock catches, hanging rings, steel wire ropes, hanging rings and balancing weights, wherein the lock catches are respectively and movably arranged at two ends of the main beam and are of U-shaped structures, two hanging rings are sleeved on each lock catch, one steel wire rope is fixedly arranged on the outer wall of each hanging ring, and the bottom end of each steel wire rope is connected with one hanging ring; the fixing mechanism comprises a first sleeve, a first semicircular ring, a first bearing, a first screw, a second sleeve, a second semicircular ring, a second bearing, a second screw and a poking transverse bar, the first sleeve is sleeved on the periphery of the bottom end of the jack, and the two first semicircular rings are movably arranged inside the first sleeve. The utility model has simple principle, simple and convenient operation and convenient and fast assembly, and the safety of the whole static load system is greatly improved.

Description

Vertical resistance to compression static load test equipment of high pile basis single pile of photovoltaic electric field tubular pile

Technical Field

The utility model relates to the technical field of geotechnical engineering tests, in particular to a vertical compression-resistant static load test device for a single pile of a high pile foundation of a photovoltaic electric field pipe pile.

Background

New energy is one of the five most decisive technical fields in the economic development of the twenty-first century world. Solar energy is a novel green renewable energy source, is most utilized compared with other energy sources, and is the most ideal renewable energy source. Particularly, in recent decades, with the continuous progress of science and technology, solar energy and related industries become one of the fastest-developing industries in China. Because it has the following characteristics: large reserve, inexhaustible, no need of mining and transportation, cleanness, no pollution, high reliability, long service life, wide application range, short construction period and short time for acquiring energy.

In order to better obtain solar energy and facilitate installation of a photovoltaic panel in a photovoltaic electric field, a prefabricated reinforced concrete pipe pile is usually used as a foundation and exposed out of the ground for a certain height, and each row of 4-8 piles are usually used as a group for installing a photovoltaic panel support. The foundation construction mainly adopts the technological methods of hole-leading hammering method, static pressure method, vibration pile-forming and the like. Under general conditions, the vertical load borne by the photovoltaic pile foundation is not large, although the vertical bearing capacity requirement of each pile is not high, uneven settlement is strictly forbidden to occur in each group of foundations, and if the uneven settlement occurs, normal operation and service life of the group of supports or photovoltaic panels are easily caused. After the construction of the photovoltaic foundation is completed, the detection of the bearing capacity of the photovoltaic foundation is emphasized, and the normal service life of a photovoltaic electric field is guaranteed.

In the prior art, three methods are mainly used for detecting the bearing capacity of the photovoltaic electric field pile foundation, namely single-pile vertical uplift bearing capacity detection, single-pile horizontal bearing capacity detection and single-pile vertical compressive bearing capacity detection, and the vertical uplift and horizontal static load test equipment is easier to realize compared with vertical compressive static load test equipment. Traditional pile-loading method and anchor pile method are not suitable for the vertical bearing capacity detection of photovoltaic pile foundation, and its leading cause has: firstly, the pile foundation is higher exposed out of the ground, if load is loaded to the pile top, the cost for building the support legs by a stacking method and the time cost are higher; secondly, the designed bearing capacity of the photovoltaic electric field pile foundation is small, a pile loading method is adopted as a large-cow-pull trolley, so that vertical bearing capacity detection is 'more successful and half' and consumes time and labor, the detection progress is influenced, and the detection cost is increased; the photovoltaic field pile foundation is large in scale, the sampling inspection quantity is large according to the standard requirement, and the traditional method is not beneficial to saving the construction period and the cost; fourthly, the construction sites of the photovoltaic field are mostly in the field, the cost and the difficulty of transportation equipment can be increased by a pile loading method and an anchor pile method, and therefore the vertical compression static load test equipment for the single pile of the high pile foundation of the tube pile of the photovoltaic field is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a vertical compression-resistant static load test device for a single pile of a high pile foundation of a photovoltaic electric field pipe pile, which can effectively solve the problems that a gift packaging box in the prior art can not be folded and assembled quickly, occupies a large space and is inconvenient to transport, and the gift packaging box is general in stability and easy to loosen and deform after being assembled and molded.

In order to solve the technical problems, the utility model is realized by the following technical scheme: a single-pile vertical compression-resistant static load test device for a high-pile foundation of a photovoltaic electric field pipe pile comprises a main beam, a jack, a load mechanism and a fixing mechanism, wherein the jack is positioned below the main beam;

the load mechanism comprises lock catches, hanging rings, steel wire ropes, hanging rings and balancing weights, wherein two lock catches are respectively and movably arranged at two ends of the main beam, each lock catch is of a U-shaped structure, two hanging rings are sleeved on each lock catch, one steel wire rope is fixedly arranged on the outer wall of each hanging ring, the bottom end of each steel wire rope is connected with one hanging ring, and the bottom ends of every two hanging rings positioned on the same vertical horizontal plane are fixedly connected with one balancing weight;

the fixing mechanism comprises a first sleeve, first semicircular rings, a first bearing, a first screw, a second sleeve, second semicircular rings, a second bearing, a second screw and a shifting transverse bar, the first sleeve is sleeved on the circumferential side of the bottom end of the jack, the two first semicircular rings are movably arranged in the first sleeve, the concave surfaces of the first semicircular rings are arranged towards the center of the first sleeve, the first bearing is embedded on the outer wall of each first semicircular ring, the first screw is movably arranged on each first bearing, the first screw is in threaded connection with the first sleeve, the second sleeve is fixedly arranged at the bottom end of the first sleeve, the two second semicircular rings are movably arranged in the second sleeve, the concave surfaces of the second semicircular rings are arranged towards the center of the second sleeve, and the second bearing is embedded on the outer wall of each second semicircular ring, each second bearing is movably provided with a second screw rod, the second screw rods are in threaded connection with the second sleeve, one ends, located outside the first sleeve, of the first screw rods and one ends, located outside the second sleeve, of the second screw rods are fixedly provided with poking cross bars, the first screw rods can rotate on the first bearings, and the second screw rods can rotate on the second bearings.

Preferably, a safety cap is fixedly arranged at the top end of the jack, and the center of the bottom end of the main beam is fixedly connected with the top end of the safety cap.

Preferably, the top surface of the inner part of the second sleeve is connected with a prefabricated foundation pile, and the peripheral side surface of the top end of the prefabricated foundation pile is positioned between the two second semicircular rings.

Preferably, the periphery of the prefabricated foundation pile is sleeved with a magnetic gauge stand fixing clamping ring, the top end of the magnetic gauge stand fixing clamping ring is provided with a dial indicator, and the dial indicator mainly monitors the vertical displacement of the prefabricated foundation pile.

Preferably, a reference measuring frame is arranged outside the prefabricated foundation pile, the reference measuring frame is located below the magnetic gauge stand fixing clamping ring, and the reference measuring frame mainly marks the initial position of the prefabricated foundation pile.

Preferably, a pipe penetrating hole is formed in the outer wall of the first sleeve, a hydraulic oil pipe is connected to the side face of the periphery of the jack, the outer end of the hydraulic oil pipe penetrates through the pipe penetrating hole and is connected with the output end of a hydraulic pump station, and an oil pressure gauge is arranged on the hydraulic pump station.

Compared with the prior art, the vertical compression-resistant static load test equipment for the single pile of the high pile foundation of the photovoltaic electric field pipe pile has the following beneficial effects:

1. according to the utility model, the U-shaped lock catch is arranged to fix the hanging ring at two ends of the main beam, the steel wire rope is arranged to be matched with the hanging ring to stably lift the reinforced concrete counterweight block, the gravity load of the reinforced concrete counterweight block is transmitted to the jack through the steel wire rope and the U-shaped lock catch, and according to the principle of acting force and reacting force, the stress of the jack is transmitted to the prefabricated foundation pile through the first sleeve and the second sleeve. The load value that the jack bore can accurate control by the manometer of hydraulic power unit of deuterogamying, and the mode that this kind of method of encorbelmenting carries out the vertical resistance to compression bearing capacity of single pile and detects has broken original static test platform equipment thinking, and the principle is simple, and is easy and simple to handle, and the equipment is convenient, and is true reliable through on-the-spot actual operation test data, has improved the operating efficiency greatly, does benefit to saving time limit for a project and cost.

2. According to the utility model, the bottom end of the jack and the top end of the prefabricated foundation pile can be assembled by arranging the first sleeve and the second sleeve, the first screw and the second screw can independently rotate on the first sleeve and the second sleeve by arranging the first bearing and the second bearing on the outer walls of the first semicircular ring and the second semicircular ring respectively, the first screw and the second screw can respectively adjust the distance between the two first semicircular rings and the distance between the two second semicircular rings by rotation to carry out anti-overturning protection on the jack and strengthen the connection stability of the jack and the prefabricated foundation pile, the safety of the whole static load system is greatly improved, and the arrangement of the poking cross bar facilitates personnel to rotate the first screw and the second screw to complete rapid assembly and disassembly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram of a single-pile vertical compression-resistant static load test device for a high-pile foundation of a photovoltaic electric field pipe pile;

FIG. 2 is a schematic front view structure diagram of a single-pile vertical compression-resistant static load test device for a high-pile foundation of a photovoltaic electric field pipe pile;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;

fig. 5 is a schematic side view of the vertical compression-resistant static load test equipment for the single pile of the high pile foundation of the photovoltaic electric field tubular pile.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a main beam; 2. a jack; 3. locking; 4. hanging a ring; 5. a wire rope; 6. a hoisting ring; 7. a balancing weight; 8. a first sleeve; 9. a first semicircular ring; 10. a first bearing; 11. a first screw; 12. a second sleeve; 13. a second semi-circular ring; 14. a second bearing; 15. a second screw; 16. shifting the horizontal bar; 17. a safety cap; 18. prefabricating a foundation pile; 19. the magnetic meter seat is fixed with a snap ring; 20. a dial indicator; 21. a reference measuring frame; 22. perforating the tube holes; 23. a hydraulic oil pipe; 24. and a hydraulic pump station.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the utility model is a vertical compression-resistant static load test device for a single pile of a high pile foundation of a photovoltaic electric field pipe pile, which comprises a main beam 1, a jack 2 positioned below the main beam 1, a load mechanism arranged on the main beam 1 and a fixing mechanism arranged on the jack 2;

the loading mechanism comprises a lock catch 3, hanging rings 4, steel wire ropes 5, hanging rings 6 and a balancing weight 7, wherein two ends of a main beam 1 are respectively and movably provided with one lock catch 3, each lock catch 3 is of a U-shaped structure, two hanging rings 4 are sleeved on each lock catch 3, one steel wire rope 5 is fixedly arranged on the outer wall of each hanging ring 4, the bottom end of each steel wire rope 5 is connected with one hanging ring 6, and the bottom ends of every two hanging rings 6 positioned on the same vertical horizontal plane are fixedly connected with one balancing weight 7;

the fixing mechanism comprises a first sleeve 8, a first semicircular ring 9, a first bearing 10, a first screw 11, a second sleeve 12, a second semicircular ring 13, a second bearing 14, a second screw 15 and a toggle transverse bar 16, the first sleeve 8 is sleeved on the peripheral side of the bottom end of the jack 2, two first semicircular rings 9 are movably arranged in the first sleeve 8, the concave surface of each first semicircular ring 9 faces the center of the first sleeve 8, a first bearing 10 is embedded on the outer wall of each first semicircular ring 9, a first screw 11 is movably arranged on each first bearing 10, the first screw 11 is in threaded connection with the first sleeve 8, the second sleeve 12 is fixedly arranged at the bottom end of the first sleeve 8, two second semicircular rings 13 are movably arranged in the second sleeve 12, the concave surface of each second semicircular ring 13 faces the center of the second sleeve 12, a second bearing 14 is embedded on the outer wall of each second semicircular ring 13, each second bearing 14 is movably provided with a second screw 15, the second screw 15 is in threaded connection with the second sleeve 12, one ends of the first screw 11 and the second screw 15, which are positioned outside the first sleeve 8, are fixedly provided with a shifting cross bar 16, the first screw 11 can rotate on the first bearing 10, and the second screw 15 can rotate on the second bearing 14.

Further, the top end of the jack 2 is fixedly provided with a safety cap 17, and the center of the bottom end of the main beam 1 is fixedly connected with the top end of the safety cap 17.

Further, a prefabricated foundation pile 18 is connected to the inner top surface of the second sleeve 12, and the peripheral side surface of the top end of the prefabricated foundation pile 18 is located between the two second semicircular rings 13.

Furthermore, a magnetic gauge stand fixing snap ring 19 is sleeved on the peripheral side of the prefabricated foundation pile 18, a dial indicator 20 is arranged at the top end of the magnetic gauge stand fixing snap ring 19, and the dial indicator 20 mainly monitors the vertical displacement of the prefabricated foundation pile 18.

Further, a reference measuring frame 21 is arranged outside the precast foundation pile 18, the reference measuring frame 21 is located below the magnetic gauge stand fixing snap ring 19, and the reference measuring frame 21 mainly indicates an initial position of the precast foundation pile 18.

Furthermore, a pipe penetrating hole 22 is formed in the outer wall of the first sleeve 8, a hydraulic oil pipe 23 is connected to the peripheral side face of the jack 2, the outer end of the hydraulic oil pipe 23 penetrates through the pipe penetrating hole 22 and is connected with the output end of a hydraulic pump station 24, and an oil pressure gauge is arranged on the hydraulic pump station 24.

The working principle of the utility model is as follows:

before a person uses the lifting jack, the bottom end of the lifting jack 2 and the top end of the prefabricated foundation pile 18 can be assembled through the first sleeve 8 and the second sleeve 12, the first screw 11 and the second screw 15 independently rotate on the first sleeve 8 and the second sleeve 12 through the first bearing 10 and the second bearing 14 on the outer walls of the first semicircular ring 9 and the second semicircular ring 13 respectively, the lifting jack 2 is protected against overturning and the connection stability of the lifting jack 2 and the prefabricated foundation pile 18 is enhanced by stirring the cross bar 16 to rotate the first screw 11 and the second screw 15 and respectively adjust the distance between the two first semicircular rings 9 and the two second semicircular rings 13, the safety of the whole static load system is greatly improved, the hanging rings 4 are fixed to the two ends of the main beam 1 through the U-shaped lock catches 3, the steel wire ropes 5 can stably lift the reinforced concrete counterweight 7 by matching with the hanging rings 6, the gravity load of the reinforced concrete counterweight 7 is transferred to the lifting jack 2 through the steel wire ropes 5 and the U-shaped lock catches 3, according to the principle of acting force and reacting force, the force applied to the jack 2 is transmitted to the precast foundation pile 18 through the first sleeve 8 and the second sleeve 12. And the pressure gauge of the hydraulic pump station 24 is matched to accurately control the load value born by the jack 2, the dial indicator 20 is installed by the magnetic gauge stand fixing snap ring 19, and the pointer at the bottom of the dial indicator 20 reads data on the vertical displacement of the pile body on the basis of the reference quantity. After field data are loaded and collected according to corresponding standard requirements, a vertical load-settlement curve graph, a settlement-time logarithm curve graph and a settlement-load logarithm curve graph can be drawn, and then the compression resistance bearing capacity of the pile foundation is determined according to the standard.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The photovoltaic electric field pipe pile high pile foundation single pile vertical compression-resistant static load test equipment is characterized by comprising a main beam (1), a jack (2) positioned below the main beam (1), a load mechanism arranged on the main beam (1) and a fixing mechanism arranged on the jack (2);

the load mechanism comprises lock catches (3), hanging rings (4), steel wire ropes (5), hanging rings (6) and balancing weights (7), two ends of the main beam (1) are respectively and movably provided with one lock catch (3), the lock catches (3) are of U-shaped structures, two hanging rings (4) are sleeved on each lock catch (3), the outer wall of each hanging ring (4) is fixedly provided with one steel wire rope (5), the bottom end of each steel wire rope (5) is connected with one hanging ring (6), and the bottom ends of two hanging rings (6) which are positioned on the same vertical horizontal plane are fixedly connected with one balancing weight (7);

the fixing mechanism comprises a first sleeve (8), first semicircular rings (9), first bearings (10), first screw rods (11), second sleeves (12), second semicircular rings (13), second bearings (14), second screw rods (15) and a toggle transverse bar (16), the first sleeve (8) is sleeved on the periphery of the bottom end of the jack (2), two first semicircular rings (9) are movably arranged in the first sleeve (8), the concave surfaces of the first semicircular rings (9) are arranged towards the center of the first sleeve (8), a first bearing (10) is embedded on the outer wall of each first semicircular ring (9), each first bearing (10) is movably provided with one first screw rod (11), the first screw rods (11) are in threaded connection with the first sleeve (8), the second sleeve (12) is fixedly arranged at the bottom end of the first sleeve (8), the inside activity of second sleeve (12) is provided with two second semicircle rings (13), and the concave surface of second semicircle ring (13) sets up towards second sleeve (12) center, every it is equipped with one second bearing (14), every to inlay on the outer wall of second semicircle ring (13) the activity is provided with one second screw rod (15) on second bearing (14), second screw rod (15) and second sleeve (12) threaded connection, first screw rod (11) and second screw rod (15) are located the outside one end of first sleeve (8) and all are fixed and are provided with and stir horizontal bar (16).

2. The vertical compression-resistant static load test equipment for the single pile of the high pile foundation of the photovoltaic electric field tubular pile as claimed in claim 1, which is characterized in that: the top end of the jack (2) is fixedly provided with a safety cap (17), and the center of the bottom end of the main beam (1) is fixedly connected with the top end of the safety cap (17).

3. The vertical compression-resistant static load test equipment for the single pile of the high pile foundation of the photovoltaic electric field tubular pile as claimed in claim 1, which is characterized in that: the top surface of the interior of the second sleeve (12) is connected with a prefabricated foundation pile (18), and the periphery of the top end of the prefabricated foundation pile (18) is located between the two second semicircular rings (13).

4. The vertical compression-resistant static load test equipment for the single pile of the high pile foundation of the photovoltaic electric field tubular pile as claimed in claim 3, characterized in that: the side surface of the prefabricated foundation pile (18) is sleeved with a magnetic gauge stand fixing clamping ring (19), and the top end of the magnetic gauge stand fixing clamping ring (19) is provided with a dial indicator (20).

5. The vertical compression-resistant static load test equipment for the single pile of the high pile foundation of the photovoltaic electric field tubular pile as claimed in claim 4, characterized in that: the prefabricated foundation pile is characterized in that a reference measuring frame (21) is arranged outside the prefabricated foundation pile (18), and the reference measuring frame (21) is located below the magnetic gauge stand fixing clamping ring (19).

6. The vertical compression-resistant static load test equipment for the single pile of the high pile foundation of the photovoltaic electric field tubular pile as claimed in claim 1, which is characterized in that: the hydraulic jack is characterized in that a through hole (22) is formed in the outer wall of the first sleeve (8), a hydraulic oil pipe (23) is connected to the side face of the periphery of the jack (2), the outer end of the hydraulic oil pipe (23) penetrates through the through hole (22) and is connected with the output end of a hydraulic pump station (24), and an oil pressure gauge is arranged on the hydraulic pump station (24).

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