CN110670594A - Installation device of precast concrete tubular pile for overhead transmission line - Google Patents

Abstract

The invention provides an installation device for concrete prefabricated pipe piles for overhead transmission lines, which includes grouting equipment, and the grouting equipment includes a slurry tank, the bottom of the slurry tank is provided with a support seat, and the slurry The bottom of the material tank extends to the end directly below the support seat, and is connected with a booster pump through a conduit. The output end of the booster pump is provided with a first slurry feeding pipe, and the first slurry feeding pipe is far away from the booster. One end of the pump is connected with a telescopic slurry feeding pipe, an end of the top of the base away from the booster pump is provided with a lifting device, one end of the telescopic slurry feeding pipe is connected with a second slurry feeding pipe, and the second slurry feeding pipe is connected to one end of the telescopic slurry feeding pipe. The outer walls of both ends of the pipe are respectively welded with a first flange plate and a second flange plate, and one end of the second slurry feeding pipe is provided with a grouting pipe. The invention realizes the grouting work in the harsh geological environment through the fastened connection between the first slurry feeding pipe, the telescopic slurry feeding pipe, the lifting device and the plurality of second slurry feeding pipes, thereby ensuring the concrete pipe pile. Stablize.

Description

An installation device for concrete prefabricated pipe piles for overhead transmission lines

technical field

The invention mainly relates to the technical field of the foundation of overhead transmission lines, in particular to an installation device of concrete prefabricated pipe piles for overhead transmission lines.

Background technique

With the continuous development of power grid technology, the tower structure and basic form of overhead transmission lines are also constantly changing. Among them, overhead transmission lines are composed of conductors, overhead ground wires, insulator strings, towers, and grounding devices. The main supporting structure of the line, the tower foundation is an important part of the transmission line project, the engineering volume accounts for 20%-25% of the entire project investment, and the construction period accounts for more than 60% of the entire project. Influence, the tower foundation needs to choose different foundation forms, and optimize the design according to the foundation force. The tower foundation is mostly composed of reinforced concrete or steel. According to the production method, it can be divided into cast-in-place and prefabricated foundation forms. A construction method for a reinforced concrete cast-in-place pipe pile, the main construction steps include: 1) drilling a mud retaining wall into a hole, first drilling a hole with a drilling machine in the hole forming process, and expanding the hole with a support plate forming machine at the bottom of the hole; 2) using underwater concrete The enlarged end of the bottom of the pile is poured in the pouring method; 3) The steel cage is made, and the steel bar protection pads are installed at intervals to form a positioning bracket; The positioning bracket and the mold bag are pressed into the hole together; 6) The micro-expanded concrete is poured into the space of the inner mold bag and the outer mold bag; 7) After the concrete of the pile body reaches the strength, the closed body and the cover plate of the pile top are constructed; The shortcomings of the structure are: the cast-in-place foundation has a large field operation area, a large amount of manpower input, is greatly affected by the weather, and the construction period is long.

Prefabrication can be done by factory-processed pipe piles, which can not only ensure the processing quality, but also ensure the efficiency of phenomenal operations and is not affected by climate. Prefabricated pipe piles are used in overhead transmission lines. When the foundation force is large, it is necessary to increase The length of the pipe pile or the diameter of the pipe pile is increased to meet the force of the transmission line tower foundation. Increasing the length of the pipe pile or increasing the diameter of the pipe pile will increase the project investment. In addition, when increasing the length of the pipe pile or the diameter of the pipe pile, it is also necessary to consider Increase the bearing capacity of the pipe pile. Chinese Patent Publication No. CN204491617U discloses a post-grouting device for static pressure or hammering concrete prefabricated pipe pile bottom. The prefabricated pile tip is installed at the bottom of the prefabricated pipe pile. Inside the pipe pile, the grouting pipe is connected to the grouting outlet through the grouting channel inside the prefabricated pile tip. There is a locator between the prefabricated pile tips, and the prefabricated pile tip is installed at the bottom of the prefabricated pipe pile, and the lower port of the grouting outlet is blocked with a soft plug. The installation of prefabricated pipe piles is completed by static pressure or hammering. After 24 hours, the cement slurry is injected. The water-cement ratio of the cement slurry is 0.5-0.7. Slurry tube, reused. The invention patent increases the bearing capacity of the pipe pile by grouting, but a large amount of mud waste will be generated during the construction of cement grouting, and a special mud pool needs to be set up, which will seriously pollute the environment.

Chinese Patent Publication No. CN205804329U discloses a convex rib opening concrete hollow pipe pile, which includes an upper mold and a lower mold, the outer walls of the upper mold and the lower mold are provided with a convex rib on the outer wall of the pipe pile, and the upper mold and the lower mold The inner wall of the mold is provided with a convex rib on the inner wall of the pipe pile, and the convex rib on the outer wall of the pipe pile and the convex rib on the inner wall of the pipe pile include the lower part of the annular convex rib, the middle part of the annular convex rib and the upper part of the annular convex rib. The convex rib opening hollow pipe pile of the present invention is that the outer wall and the inner wall of the traditional circular section hollow pipe pile are uniformly crossed with annular convex ribs at intervals. Due to the addition of annular convex ribs, the surface area of the pile in contact with the soil is increased, and the friction force of the pile body and the bearing capacity of the whole pile are effectively improved. However, this invention patent uses annular convex rib to increase the surface area of the contact between the pile and the soil. On the one hand, the contact area is small, and on the other hand, it is not conducive to piling.

SUMMARY OF THE INVENTION

The present invention mainly provides an installation device for concrete prefabricated pipe piles for overhead transmission lines, which is used to solve the technical problems raised in the above-mentioned background art.

The technical scheme adopted by the present invention to solve the above-mentioned technical problems is:

An installation device for concrete prefabricated pipe piles for overhead transmission lines, comprising grouting equipment, the grouting equipment comprising a slurry tank, the bottom of the slurry tank is provided with a support seat, and the The end of the bottom extending to the bottom of the support seat is connected with a booster pump through a conduit. The bottom of the booster pump is provided with a base, and the top of the base is fixedly connected with the bottom of the booster pump through bolts. The output end of the booster pump is provided with a first slurry feeding pipe, one end of the first slurry feeding pipe is fixedly connected with the output end of the booster pump through a connector, and the first slurry feeding pipe is far away from the booster One end of the pump is connected with a telescopic slurry feeding pipe through a connecting elbow, and an end of the top of the base away from the booster pump is provided with a lifting device;

The lifting device includes a mounting frame, one end of the telescopic slurry feeding pipe away from the first slurry feeding pipe extends to the outside of the mounting frame, and one end of the telescopic slurry feeding pipe extending to the outside of the mounting frame passes through The connecting elbow is connected with a second slurry feeding pipe, the outer walls of both ends of the second slurry feeding pipe are respectively welded with a first flange and a second flange, and the second flange is far away from the first flange. One end of a flange is welded with a connecting pipe;

One end of the second slurry feeding pipe is provided with a grouting pipe, and the inner wall of the top end of the grouting pipe is fixedly connected with the outer wall of the second slurry feeding pipe through the connecting pipe.

Further, the bottom end of the grouting pipe is welded with a conical grouting head, and the outer wall of the grouting pipe and the conical grouting head are provided with a plurality of grouting outlets at equal distances, and the A protective sleeve is sleeved on the outer wall of the slurry pipe, and the bottom end of the protective sleeve is welded with a conical sleeve;

The heights of the grouting pipe and the conical grouting head are respectively the same as the heights of the protective sleeve and the conical sleeve.

Further, a telescopic rod is welded on the bottom of the mounting frame, a fixing rod is sleeved on the outer wall of one end of the telescopic rod away from the mounting frame, a fixing seat is welded on the bottom of the fixing rod, and the bottom of the fixing seat is welded. It is fixedly connected to the top of the base by means of bolts.

Further, external threads are provided on the outer wall of the connecting pipe.

Further, an inner thread is provided on the inner wall of the first flange, and the inner thread and the outer thread are engaged with each other.

Further, a control device is provided at a top corner of the support base, and the control device is electrically connected to the booster pump through wires.

Further, the four bottom corners of the base are connected with driven wheels one by one through bolts, and support feet are symmetrically arranged on both sides of the bottom of the base;

The bottoms of the four driven wheels and the four supporting feet are provided with a floating workbench, and the bottoms of the four driven wheels and the four supporting feet are all in contact with the top of the floating workbench. Not fixed.

Compared with the prior art, the beneficial effects of the present invention are:

First, the present invention facilitates the grouting work in harsh geological environment, and realizes the grouting work through the booster pump, the first grouting pipe, the telescopic grouting pipe, the lifting device, the second grouting pipe and the grouting pipe arranged in sequence. The grouting of deep-water karst fractures is developed in geology, wherein a plurality of second slurry feeding pipes are connected for the first time by threads, and then the first flange and the second flange are further fixed by bolts, so that the second slurry feeding pipe The connection between them is tight and not easy to fall off, which facilitates the grouting work, ensures the stability of the old bridge foundation and reduces the safety risk;

Second, the present invention realizes uniform grouting. The conical grouting head and the grouting outlet realize the development of geological grouting in deep water karst cracks and make the grouting uniform, so as to ensure the stability of the foundation of the old bridge. The shaped casing is convenient for the grouting pipe and the conical grouting head to be drilled into the harsh geological environment such as deep-water karst fracture development geology, which is convenient for the subsequent grouting work;

Third, the present invention is easy to move, and the movement of the device is carried out by the driven wheel, thereby saving manpower.

The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Figure 2 is a schematic structural diagram of the second slurry feeding pipe of the present invention;

FIG. 3 is a cross-sectional view of the grouting pipe structure of the present invention.

Reference numerals: 1. Grouting equipment; 11. Control device; 2. Slurry tank; 3. Booster pump; 31. First slurry feeding pipe; 32. Telescopic slurry feeding pipe; 4. Support seat; 5. Base ; 51, supporting feet; 52, driven wheel; 6, lifting device; 61, fixed rod; 62, telescopic rod; 63, fixed seat; 64, mounting frame; 7, the second feeding pipe; 71, the first flange Disc; 711, internal thread; 72, second flange; 73, connecting pipe; 731, external thread; 8, grouting pipe; 81, conical grouting head; 82, slurry outlet; 9, floating work 10. Protective casing; 101. Conical casing.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the description in the text. rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it may be The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for the purpose of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated by one of ordinary skill in the technical field of the present invention, and the terminology used herein in the description of the present invention is used for the purpose of describing specific embodiments. For the purpose of, and not intended to limit, the present invention, as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please emphatically refer to the accompanying drawings 1-3, an installation device of a concrete prefabricated pipe pile for overhead transmission lines, including a grouting equipment 1, the grouting equipment 1 includes a slurry tank 2, the slurry tank The bottom of 2 is provided with a support seat 4, and the bottom of the slurry tank 2 extends to one end directly below the support seat 4, and is connected with a booster pump 3 through a conduit, and the bottom of the booster pump 3 is provided with a base 5 , the top of the base 5 is fixedly connected to the bottom of the booster pump 3 through bolts, the output end of the booster pump 3 is provided with a first slurry feeding pipe 31, and one end of the first slurry feeding pipe 31 passes through The connecting head is fixedly connected with the output end of the booster pump 3, the end of the first slurry feeding pipe 31 away from the boosting pump 3 is connected with a telescopic slurry feeding pipe 32 through a connecting elbow, and the base 5 is connected to the telescopic slurry feeding pipe 32. One end of the top away from the booster pump 3 is provided with a lifting device 6, the lifting device 6 includes a mounting frame 64, and the end of the telescopic slurry feeding pipe 32 away from the first slurry feeding pipe 31 extends to the Outside the mounting frame 64, one end of the telescopic pulp feeding pipe 32 extending to the outside of the mounting frame 64 is connected with a second pulp feeding pipe 7 through a connecting elbow, and the outer walls of both ends of the second pulp feeding pipe 7 are welded respectively. There are a first flange 71 and a second flange 72, and a connecting pipe 73 is welded to the end of the second flange 72 away from the first flange 71. One end is provided with a grouting pipe 8 , and the inner wall of the top end of the grouting pipe 8 is fixedly connected with the outer wall of the second grouting pipe 7 through the connecting pipe 73 .

Please refer to FIG. 1 , a telescopic rod 62 is welded to the bottom of the mounting frame 64 , and a fixing rod 61 is sleeved on the outer wall of one end of the telescopic rod 62 away from the mounting frame 64 . The bottom is welded with a fixing seat 63, and the bottom of the fixing seat 63 is fixedly connected with the top of the base 5 through bolts. In this embodiment, the lifting and lowering of the mounting frame 64 is realized by the telescopic rod 62, which facilitates the feeding of the second grouting pipe 7 and the grouting pipe 8 into deep water, and facilitates the grouting work.

Please refer to FIG. 1 , a control device 11 is provided at a top corner of the support base 4 , and the control device 11 is electrically connected to the booster pump 3 through wires. The bottom corners are connected with driven wheels 52 one by one through bolts, and support feet 51 are symmetrically arranged on both sides of the bottom of the base 5, and the bottoms of the four driven wheels 52 and the four support feet 51 are provided with floating work The bottoms of the table 9, the four driven wheels 52 and the four supporting feet 51 are all in contact with the top of the floating table 9 but are not fixed. In this embodiment, the movement of the device is realized by the driven wheel 52 , and the device is stabilized by the supporting feet 51 .

Please refer to FIG. 2 , the outer wall of the connecting pipe 73 is provided with an outer thread 731 , the inner wall of the first flange 71 is provided with an inner thread 711 , the inner thread 711 and the outer thread 731 mesh with each other. In this embodiment, the connection between the two second slurry feeding pipes 7 is realized through the first flange 71 of one second slurry feeding pipe 7 and the connecting pipe 73 of the other second slurry feeding pipe 7, Easy to install.

Please refer to FIG. 3 , the bottom end of the grouting pipe 8 is welded with a conical grouting head 81 , and the outer walls of the grouting pipe 8 and the conical grouting head 81 are equally spaced with A plurality of grouting outlets 82, and the outer wall of the grouting pipe 8 is sleeved with a protective sleeve 10, the bottom end of the protective sleeve 10 is welded with a conical sleeve 101, the grouting pipe 8 and all The height of the conical grouting head 81 is the same as the height of the protective sleeve 10 and the conical sleeve 101 respectively. In this embodiment, the conical grouting head 81 and the grouting outlet 82 are used to realize the development of geological grouting in deep-water karst fissures and make the grouting uniform, so as to ensure the stability of the old bridge foundation. The pipe 101 is convenient for the grouting pipe 8 and the conical grouting head 81 to drill into the harsh geological environment such as deep-water karst fracture development geology, and the protective casing 10 needs to be removed when starting grouting.

The specific operation mode of the present invention is as follows:

First, inject the slurry into the slurry tank 2, then install the first slurry feeding pipe 31 on the booster pump 3, connect the other end of the first slurry feeding pipe 31 with the telescopic slurry feeding pipe 32, and then lower the The device 6 fixes the telescopic slurry feeding pipe 32 on the mounting frame 64, and connects the other end of the telescopic slurry feeding pipe 32 with one end of the second slurry feeding pipe 7 through the connecting elbow. Since the grouting hole is located in the deep water area, more The two second slurry feeding pipes 7 are connected so that the grouting pipes 8 can reach the position of the grouting hole. 711 and the external thread 731 of the connecting pipe 73 of the other second slurry feeding pipe 7, connect the two second slurry feeding pipes 7, and then connect the first flange 71 of the second slurry feeding pipe 7 to the other through bolts The second flange 72 of the second slurry feeding pipe 7 is further fixed, and in this way, a plurality of second slurry feeding pipes 7 are connected together until the grouting pipe 8 connected to one end of the last second slurry feeding pipe 7 can be Reach the position of the grouting hole, which is convenient for grouting work.

The invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner, as long as the non-substantial improvement of the method concept and technical solution of the present invention is adopted, or the invention is not improved without improvement. It is within the protection scope of the present invention that the ideas and technical solutions of the invention are directly applied to other occasions.

Claims (7)

1. The utility model provides an installation device of precast concrete tubular pile for overhead transmission line, including slip casting equipment (1), its characterized in that: the grouting equipment (1) comprises a slurry tank (2), a supporting seat (4) is arranged at the bottom of the slurry tank (2), and one end of the bottom of the slurry tank (2) extending to the position right below the supporting seat (4) is connected with a booster pump (3) through a guide pipe, the bottom of the booster pump (3) is provided with a base (5), the top of the base (5) is fixedly connected with the bottom of the booster pump (3) through a bolt, the output end of the booster pump (3) is provided with a first slurry conveying pipe (31), one end of the first slurry conveying pipe (31) is fixedly connected with the output end of the booster pump (3) through a connector, one end of the first slurry feeding pipe (31) far away from the booster pump (3) is connected with a telescopic slurry feeding pipe (32) through a connecting elbow, and one end of the top of the base (5) far away from the booster pump (3) is provided with a lifting device (6);

the lifting device (6) comprises a mounting frame (64), one end, far away from the first slurry conveying pipe (31), of the telescopic slurry conveying pipe (32) extends out of the mounting frame (64), one end, extending out of the mounting frame (64), of the telescopic slurry conveying pipe (32) is connected with a second slurry conveying pipe (7) through a connecting elbow, a first flange plate (71) and a second flange plate (72) are welded to the outer walls of the two ends of the second slurry conveying pipe (7) respectively, and a connecting pipe (73) is welded to one end, far away from the first flange plate (71), of the second flange plate (72);

one end of the second slurry feeding pipe (7) is provided with a grouting pipe (8), and the inner wall of the top end of the grouting pipe (8) is fixedly connected with the outer wall of the second slurry feeding pipe (7) through the connecting pipe (73).

2. The mounting device of the concrete precast tubular pile for the overhead transmission line according to claim 1, characterized in that: the bottom end of the grouting pipe (8) is welded with a conical grouting head (81), a plurality of grout outlets (82) are formed in the outer walls of the grouting pipe (8) and the conical grouting head (81) at equal intervals, a protective sleeve (10) is sleeved on the outer wall of the grouting pipe (8), and a conical sleeve (101) is welded at the bottom end of the protective sleeve (10);

the heights of the grouting pipe (8) and the conical grouting head (81) are respectively the same as those of the protective sleeve (10) and the conical sleeve (101).

3. The mounting device of the concrete precast tubular pile for the overhead transmission line according to claim 1, characterized in that: the bottom welding of mounting bracket (64) has telescopic link (62), telescopic link (62) are kept away from the cover is equipped with dead lever (61) on the outer wall of mounting bracket (64) one end, the bottom welding of dead lever (61) has fixing base (63), the bottom of fixing base (63) pass through the bolt with the top fixed connection of base (5).

4. The mounting device of the concrete precast tubular pile for the overhead transmission line according to claim 1, characterized in that: and the outer wall of the connecting pipe (73) is provided with an external thread (731).

5. The mounting device of the concrete precast tubular pile for the overhead transmission line according to claim 1, characterized in that: an internal thread (711) is arranged on the inner wall of the first flange plate (71), and the internal thread (711) is meshed with the external thread (731).

6. The mounting device of the concrete precast tubular pile for the overhead transmission line according to claim 1, characterized in that: one apex angle department of supporting seat (4) is equipped with controlling means (11), controlling means (11) through the wire with booster pump (3) electric connection.

7. The mounting device of the concrete precast tubular pile for the overhead transmission line according to claim 1, characterized in that: driven wheels (52) are connected to four bottom corners of the base (5) one by one through bolts, and supporting legs (51) are symmetrically arranged on two sides of the bottom of the base (5);

the four driven wheels (52) and the four supporting feet (51) are provided with floating type working tables (9) at the bottoms, and the four driven wheels (52) and the four supporting feet (51) are all in contact with but not fixed on the tops of the floating type working tables (9).

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