CN214194626U - Mountain area transmission tower anchor rope assembled basis - Google Patents

Abstract

The utility model discloses a mountain area transmission tower anchor rope assembled basis, including the anchor rope assembled foundation structure body that is used for installing transmission tower, anchor rope assembled foundation structure body mainly includes precast concrete bottom plate and sets up the precast concrete stand at precast concrete bottom plate top, the bottom of precast concrete bottom plate is provided with the lower part anchor rope that the slope extends downwards; the prefabricated concrete bottom plate and the prefabricated concrete upright post are respectively formed by splicing a plurality of bottom plate blocks and upright post blocks, two adjacent bottom plate blocks or upright post blocks are fixedly connected through a tenon clamping structure, the tenon clamping structure comprises a plug arranged on the bottom plate blocks or upright post blocks and a mortise matched with the plug and arranged on the other bottom plate block or upright post block, and a connecting bolt for fixing the two adjacent bottom plate blocks or upright post blocks is arranged at the joint of the plug and the mortise; it has the characteristics of simple structure, clear stress, reasonable manufacturing cost and the like.

Description

Mountain area transmission tower anchor rope assembled basis

Technical Field

The utility model relates to a transmission line field, concretely relates to mountain area transmission tower anchor rope assembled basis.

Background

Under the realistic conditions that land resources are in short supply and the requirements for environmental protection and mechanized construction are improved, the electric transmission line projects such as extra-high voltage, multi-loop on the same tower, large span and the like are increased day by day, the scale of the tower is increased, meanwhile, the vertical load and the horizontal load born by the lower foundation are very huge and are limited by an electric transmission line corridor, and a plurality of lines are wired to mountainous areas with less smoke. At present, mountain circuits mainly adopt traditional foundation types such as digging type foundations, manual hole digging foundations, rock embedded foundations and the like. In recent years, for tower positions with gentle topography, good rock properties and thin covering layers in mountain areas, a rock anchor rod foundation type is generally recommended, the foundation consists of a rock embedded foundation with the upper part embedded into bedrock at a certain depth and a vertical anchor rod with the bottom part anchored into the bedrock, the pulling resistance bearing capacity of the bedrock can be fully utilized, and the size of the upper digging foundation is effectively reduced. And for the thick tower position of overburden, the buried depth of the upper portion digging foundation increases, and the economy of adopting the rock anchor rod foundation will constantly reduce. In a word, no matter which type of foundation is adopted for the mountain area line, the problems that the transportation of basic construction raw materials such as cement, gravel, reinforcing steel bars and water and corresponding pore-forming equipment is difficult, the mechanized construction rate of the foundation is low, the basic construction quality is difficult to guarantee and the like exist due to the limitation of the traffic conditions of the mountain area.

Aiming at the problem of low mechanized construction rate of mountain line foundations, an assembly type foundation form is gradually created in recent years, concrete members of the foundation can be processed and produced in a factory in a standardized, modularized and batch mode, the concrete members are delivered to a site for assembly construction, the foundation quality is easy to guarantee, and the construction period can be shortened. In view of the above advantages of the fabricated foundation, the foundation pattern is gradually popularized and used in special power transmission line areas such as mountainous areas, deserts, gobi deserts and the like, and has remarkable economic and environmental effects. According to the introduced difficult point of designing the mountain line foundation with thicker covering soil and inconvenient traffic conditions, the respective advantages of the assembly foundation and the rock anchor rod foundation are integrated, and the design concept of the novel anchor cable assembly foundation is provided.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a mountain area transmission tower anchor rope assembled basis that simple structure, novelty, atress are clear and definite, economy is reasonable.

The utility model aims at providing a mountain area transmission tower anchor rope assembled foundation, which comprises an anchor rope assembled foundation structure body for installing a transmission tower, wherein the anchor rope assembled foundation structure body mainly comprises a precast concrete bottom plate and a precast concrete upright post arranged at the top of the precast concrete bottom plate, and the bottom of the precast concrete bottom plate is provided with a lower anchor rope which obliquely extends downwards; the precast concrete bottom plate and the precast concrete upright post are respectively formed by splicing a plurality of bottom plate blocks and upright post blocks, and the two adjacent bottom plate blocks or upright post blocks are fixedly connected through a connecting structure.

Furthermore, the connection structure is a tenon structure, the tenon structure comprises a plug arranged on the bottom plate block or the upright column block and a mortise matched with the plug and arranged on the other bottom plate block or the upright column block, and a connection bolt used for fixing the two adjacent bottom plate blocks or the upright column blocks is arranged at the connection position of the plug and the mortise.

Furthermore, the connecting bolts comprise vertical connecting bolts for fixing the two adjacent bottom plate blocks and horizontal connecting bolts for fixing the two adjacent upright post blocks, and reserved bolt cup openings are preset in the mounting positions of the vertical connecting bolts and the horizontal connecting bolts.

Further, the reserved bolt cup is filled with C40 fine-stone concrete after the bolt is installed.

Compared with the prior art, at the great mountain area circuit tower position of earthing thickness, the utility model has the advantages of: firstly, the anchor cable assembly type foundation can fully exert the advantages of the assembly type foundation and the anchor cable, and the upper assembly type foundation only bears the pressing load and the force transmission; through the inclined arrangement of the anchor cables, the pulling-up and horizontal loads on the whole foundation are borne by the anchor cables, so that the burial depth of the upper foundation can be greatly reduced. Secondly, the anchor cable assembly type foundation is very convenient to transport, hoist and splice on site, the mechanical construction degree of the novel foundation is greatly improved, the construction efficiency of the mountain tower foundation can be effectively improved, and the economy is obvious; especially the utility model provides a components such as trip, connecting bolt can be adopted on the basis of trip socket joint formula concrete assembled with stand and bottom plate precast concrete piecemeal and assemble on site, and foundation structure's wholeness is strong, and the component connection department atress is reasonable, and construction simple operation, efficient.

Drawings

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

FIG. 2 is a schematic structural view of the precast concrete floor of the present invention;

fig. 3 is the utility model discloses a precast concrete stand's structural schematic.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-3, the anchor cable assembly foundation for transmission tower in mountainous area of the present invention comprises an anchor cable assembly foundation structure body for installing transmission tower, wherein the anchor cable assembly foundation structure body mainly comprises a precast concrete bottom plate 1 and a precast concrete upright post 2 arranged on the top of the precast concrete bottom plate 1, and the bottom of the precast concrete bottom plate 1 is provided with a lower anchor cable 3 extending obliquely downwards; the precast concrete base plate 1 and the precast concrete upright post 2 are respectively formed by splicing a plurality of base plate blocks 11 and upright post blocks 21, and the two adjacent base plate blocks 11 or upright post blocks 12 are fixedly connected through a connecting structure; the precast concrete base plate 1 and the precast concrete upright posts 2 can be precast and finished in a factory by adopting concrete and reinforcing steel bars with corresponding grade labels respectively according to the load size and geological conditions of the foundation, and are transported to the site for assembling the fabricated foundation.

Referring to fig. 1 to 3, the connecting structure is a tenon structure 4, the tenon structure 4 includes a plug 41 disposed on a bottom plate segment 11 or an upright column segment 21 and a mortise 42 connected with the plug 41 in a matching manner and disposed on another bottom plate segment 11 or an upright column segment 21, and a connecting bolt 5 for fixing two adjacent bottom plate segments 11 or upright column segments 21 is disposed at a connection position of the plug 41 and the mortise 42; 4 mutual staggered arrangement of tenon structure, for the prefabricated mode of assembling of tradition, the more effective load transfer of ability of tenon socket joint makes by connection structure's wholeness stronger, and construction operation is simple and convenient simultaneously, avoids additionally adding unnecessary components such as connection cover plate.

Referring to fig. 1-3, the connecting bolt 5 includes a vertical connecting bolt for fixing two adjacent bottom plate blocks and a horizontal connecting bolt for fixing two adjacent upright column blocks, and a reserved bolt cup 6 is preset at the installation position of the vertical connecting bolt and the horizontal connecting bolt, and the reserved bolt cup 6 is filled with C40 fine stone concrete after the bolts are installed. The number of the horizontal connecting bolts and the number of the vertical connecting bolts can be respectively determined according to the bending moment and the shearing force of the upright post and the bottom plate, and the length of the connecting bolts is determined according to the thickness of the bottom plate or the width of the upright post at the passing position and the fastening requirement of the bolts; a flange plate is reserved at the root part of the upright column and is connected with the foundation slab by adopting foundation bolts; the lower anchor cable 8 mainly bears tension, the tension of the lower anchor cable 8 is used for bearing the pulling load of the foundation, and the horizontal component force after the anchor cable is obliquely arranged resists the external horizontal load, so that the pulling stability and the anti-overturning stability of the whole foundation are ensured.

The upper part mortise and tenon socket type precast concrete foundation ensures effective connection between a segmented bottom plate and a stand column through reasonable arrangement of mortises and socket heads and bolt anchoring, the lower part anchor cable penetrates through a soil layer and is directly anchored into the complete bedrock at the bottom, the anchor cable is arranged in a tilted mode in space, excellent uplift performance of the original bedrock and the high-strength anchor cable can be fully exerted, the whole uplift bearing capacity and water resistance of the foundation are ensured to be stable, the burial depth of the upper part assembly type foundation is effectively reduced, and the precast concrete foundation is economical and environment-friendly.

At the great mountain area circuit tower position of earthing thickness, the advantage of anchor rope assembled basis lies in: firstly, the anchor cable assembly type foundation can fully exert the advantages of the assembly type foundation and the anchor cable, and the upper assembly type foundation only bears the pressing load and the force transmission; through the inclined arrangement of the anchor cables, the pulling-up and horizontal loads on the whole foundation are borne by the anchor cables, so that the burial depth of the upper foundation can be greatly reduced. Secondly, the anchor cable assembly type foundation is very convenient to transport, hoist and splice on site, the mechanical construction degree of the novel foundation is greatly improved, the construction efficiency of the mountain tower foundation can be effectively improved, and the economy is obvious; especially the utility model provides a components such as trip, connecting bolt can be adopted on the basis of trip socket joint formula concrete assembled with stand and bottom plate precast concrete piecemeal and assemble on site, and foundation structure's wholeness is strong, and the component connection department atress is reasonable, and construction simple operation, efficient.

Through calculation and comparison, under the same geological and topographic conditions, the comprehensive cost of the anchor cable assembly type foundation is reduced by 10-15% compared with that of the traditional hole digging foundation, and the economic benefit is remarkable.

The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.

Claims (4)

1. The utility model provides a mountain area transmission tower anchor rope assembled basis, includes the anchor rope assembled foundation structure body that is used for installing transmission tower, its characterized in that: the anchor cable assembly type foundation structure body mainly comprises a precast concrete bottom plate and a precast concrete upright column arranged at the top of the precast concrete bottom plate, wherein the bottom of the precast concrete bottom plate is provided with a lower anchor cable which extends obliquely downwards; the precast concrete bottom plate and the precast concrete upright post are respectively formed by splicing a plurality of bottom plate blocks and upright post blocks, and the two adjacent bottom plate blocks or upright post blocks are fixedly connected through a connecting structure.

2. The mountain area transmission tower anchor cable fabricated foundation of claim 1, wherein: the connecting structure is a tenon structure, the tenon structure comprises a plug arranged on the bottom plate block or the stand column block and a mortise matched with the plug and arranged on another bottom plate block or another stand column block, and a connecting bolt used for fixing the two adjacent bottom plate blocks or the stand column blocks is arranged at the joint of the plug and the mortise.

3. The mountain area transmission tower anchor cable fabricated foundation of claim 2, wherein: the connecting bolts comprise vertical connecting bolts used for fixing the two adjacent bottom plate blocks and horizontal connecting bolts used for fixing the two adjacent stand column blocks, and reserved bolt cup openings are preset in the mounting positions of the vertical connecting bolts and the horizontal connecting bolts.

4. The mountain area transmission tower anchor cable fabricated foundation of claim 3, wherein: and the reserved bolt cup is filled with C40 fine-stone concrete after the bolt is installed.

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