CN114278144A - High-voltage power transmission tower/communication tower anti-mountain-falling object impact base and preparation method thereof - Google Patents
High-voltage power transmission tower/communication tower anti-mountain-falling object impact base and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a high-voltage power transmission tower/communication tower anti-mountain-falling object impact base and a preparation method thereof, wherein the base comprises the following steps: the side surface of the base which is butted with the footing of the power transmission tower/communication tower is integrally cast and formed with a triangular protective body which protrudes upwards; the sharp corner at the front end of the triangular protective body corresponds to a collapse surface to be protected; the rear end of the triangular protection body is provided with an inner concave surface. The invention is beneficial to preventing serious damage to the high-voltage transmission tower/communication tower caused by direct impact of rolling stones and debris flow caused by geological disasters to a greater extent, improving the effective protection of the high-voltage transmission tower/communication tower under the geological disasters, avoiding accidents such as power failure or signal interruption caused by landslide and reducing unnecessary economic loss.
Description
Technical Field
The invention relates to the technical field of characteristic structure protection structures, in particular to a high-voltage power transmission tower/communication tower anti-mountain-falling object impact base and a preparation method thereof.
Background
With the development of modern society, higher requirements are put on electric power or communication, the height of a power transmission tower/communication tower and the span of a power transmission line are developed towards higher and larger directions, and the requirements on basic protection are also more strict in order to ensure the construction safety of the power transmission tower/communication tower. In western and east China power transmission projects, coal resources and hydraulic resources concentrated in western regions of China are converted into electric power resources to be transmitted to the east, high-level hydropower stations such as a Xiluodie hydropower station, a family dam hydropower station, a second beach hydropower station, a brocade first-level hydropower station and the like are built in Sichuan provinces, the hydropower stations are basically located in mountainous areas, most of power transmission towers are located in mountains, geological conditions are complex, and rockfall and debris flow caused by natural reasons can damage the power transmission towers. Meanwhile, with the rapid development of informatization, a large number of communication towers are also built on a hillside in order to realize the development strategies of beautiful villages such as power-on and network access of villages. The communication tower bodies are usually collapsed due to landslide or falling rock impact, so that accidents such as signal interruption and the like occur, and the difficulty is increased for maintenance and repair.
At present, most of power transmission tower/communication tower foundations at home and abroad are combined structures of cast-in-place concrete piles and reinforced concrete piers. The foundation is not only used for transverse protection of the power transmission tower, but also used for protection of natural disasters such as mountain rock fall, debris flow and the like; therefore, in order to avoid the damage of the power transmission tower/communication tower caused by the factors, the invention provides the base for preventing the mountain collapse objects of the high-voltage power transmission tower/communication tower from impacting the base, the shape and the height of the protective surface are changed, and the rolling stones are far away from the base from the two sides of the base when impacting the protective surface by utilizing the mechanical action, so that the direct impact of the mountain rolling stones on the power transmission tower/communication tower is effectively prevented.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter. To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a high voltage transmission tower/communication tower base for preventing impact of a mountain fall, comprising:
the side surface of the base which is butted with the footing of the power transmission tower/communication tower is integrally cast and formed with a triangular protective body which protrudes upwards; the sharp corner at the front end of the triangular protective body corresponds to a collapse surface to be protected; the rear end of the triangular protection body is provided with an inner concave surface.
Preferably, the preparation method of the base for preventing the mountain collapse object from impacting the base based on the high-voltage transmission tower/communication tower is characterized in that:
step one, arranging a triangular protective body on one side, close to a mountain, of an original base of a power transmission tower; the triangular protective body is a reinforced concrete cast-in-place member, and the section base angle alpha and the vertical height H of the triangular protective body are adjusted to be the optimal angle and height according to the situation.
Secondly, reinforcing bars are distributed on the base foundation, reinforcing bar meshes are distributed at the top and the bottom of the base foundation according to the construction safety construction requirement in a foundation reinforcing bar distribution mode, and if the foundation is too high, a reinforcing bar mesh I with the type slightly lower than that of a reinforcing bar at the top can be additionally distributed in the middle; the reinforcing mesh I is connected into a reinforcing cage I by adopting vertical constructional ribs.
Thirdly, reinforcing the three-edge type protection body, wherein the reinforcing steel bar arrangement of the connection part of the three-edge type protection body and the base foundation is realized by utilizing the transverse extension of the reinforcing steel bar net of the base foundation, the transverse reinforcing steel bar net is arranged at the top part higher than the base part according to the structural shape, and if the transverse reinforcing steel bar net is too high, the reinforcing steel bar net II with the type slightly lower than that of the reinforcing steel bar at the top part can be additionally arranged in the middle; and the reinforcing mesh II is connected by adopting vertical structural bars, so that a reinforcing cage II is formed.
And step four, supporting the base and the row bottom die of the triangular protection body after the reinforcement is completed according to the section bottom angle alpha and the vertical height H in the step one, wherein the template is a special steel template so as to meet the requirement on the structure of the triangular protection body.
And step five, performing concrete pouring on the bottom die supported in the step four, in order to ensure the integrity of the whole foundation, pouring the concrete of the foundation by using the same batch of cement, fly ash, mineral powder and additives in principle, and simultaneously performing pouring, and strictly controlling the pouring process and the condensation process according to the attention points of the concrete pouring.
Preferably, among them, a high voltage transmission tower/communication tower prevents the impact base of mountain collapsing thing, it includes: the side surface of the base which is butted with the footing of the power transmission tower/communication tower is integrally cast and formed with a triangular protective body which protrudes upwards; the sharp corner at the front end of the triangular protective body corresponds to a collapse surface to be protected; an inner concave surface is arranged at the rear end of the triangular protection body; a lower layer reinforcing mesh and a middle reinforcing mesh are arranged in the base at intervals from bottom to top; the lower layer reinforcing mesh and the middle reinforcing mesh are integrally cut and cut into specifications matched with the sharp angle at the front end of the triangular protective body after horizontally extending to the lower part of the triangular protective body; a plurality of vertical steel bars I are fixedly penetrated in a plurality of meshes of the lower layer steel bar mesh and the middle layer steel bar mesh; the lower ends of the vertical steel bars I are respectively lapped at a plurality of cross nodes of the lower layer steel bar mesh to form a plurality of lower layer fixed points; the upper ends of the vertical steel bars I are respectively lapped at a plurality of cross nodes of the middle steel bar mesh to form a plurality of middle fixing points; a plurality of two-end inverted U-shaped tie bars are respectively hung on a plurality of lower-layer fixed points and middle fixed points to be connected and fixed, and then a three-dimensional space reinforcement framework I for integral casting is formed.
Preferably, an upper layer of reinforcing mesh is arranged above the inside of the triangular protection body; the upper layer reinforcing mesh is cut into the same specification with the protruding part above the triangular protection body; the upper layer of reinforcing mesh is arranged right above the pointed angle part of the middle reinforcing mesh at intervals; a plurality of vertical steel bars II are respectively fixedly penetrated between the meshes of the sharp corner parts of the upper layer steel bar net and the middle layer steel bar net; the lower ends of the vertical reinforcing steel bars II are respectively lapped at a plurality of cross nodes of the pointed angle part of the middle reinforcing steel bar net to form a plurality of middle fixing points II; the upper ends of the vertical steel bars II are respectively lapped at a plurality of cross nodes of the upper-layer steel bar mesh to form a plurality of upper-layer fixed points; and after the middle reinforcing mesh and the upper reinforcing mesh are respectively fixed by using a plurality of U-shaped tie bars at two ends, a three-dimensional space reinforcing cage II for integral casting is formed.
Preferably, the lower end of the base is integrally cast with a plurality of reinforced concrete piles which are distributed in a 3 × 3 manner and are embedded into the foundation; the upper end of the supporting steel bar in the reinforced concrete pile is provided with a cross-shaped hanging joint; the cross hitching head is provided with a plurality of hooks with the configuration height higher than that of the lower layer reinforcing mesh.
Preferably, the preparation method of the base for preventing the impact of the mountain collapse object on the high-voltage transmission tower/communication tower comprises the following steps:
step one, respectively placing a plurality of supporting steel bars into foundation pile holes distributed by 3 multiplied by 3, penetrating two layers of horizontal steel bars above the foundation pile holes, and forming a lower layer steel bar mesh and a middle layer steel bar mesh after mutually crossing and lapping;
step two, cutting off redundant parts of the lower layer reinforcing mesh and the middle reinforcing mesh by using a reinforcing steel bar cutting machine, and stacking a plurality of reinforcing steel bars obtained by cutting to one side for later use;
step three, processing the plurality of steel bar rods with different lengths separated in the step two into proper lengths, and directly throwing the steel bar rods into each grid between the lower layer steel bar mesh and the middle part steel bar mesh, so as to form a plurality of vertical steel bars I; the upper ends and the lower ends of the vertical steel bars I are clamped and hooped on the middle fixing points and the lower fixing points by using the bending parts of the double-end inverted U-shaped tie bars, so that the assembly of the space steel bar framework I is completed; bending each end part of a cross-shaped hanging joint at the upper end of the supporting steel bar to a hook, and then overlapping the end part on the vertical steel bar I above the lower layer steel bar mesh, thereby completing the steel bar overlapping between the lower layer steel bar mesh and the plurality of reinforced concrete piles;
fourthly, a plurality of horizontal steel bars penetrate through one side of the upper end of the middle steel bar net, and an upper steel bar net is formed after the horizontal steel bars are mutually crossed and lapped;
fifthly, cutting off the redundant part of the upper layer of the reinforcing mesh by using a reinforcing steel bar cutting machine, and stacking a plurality of reinforcing steel bars obtained by cutting to one side for later use;
step six, processing the plurality of steel bar rods obtained in the step two and the step five into proper lengths, and directly throwing the steel bar rods into meshes at the sharp corners of the upper layer steel bar mesh and the middle layer steel bar mesh so as to form a plurality of vertical steel bars II; the upper ends and the lower ends of a plurality of vertical steel bars II are fastened, clamped and fixed on a plurality of upper layer fixed points and middle fixed points by using a plurality of bent parts of the tie bars with the two ends inverted U-shaped, so that the assembly of the steel space steel bar framework II is completed;
and seventhly, erecting up-down integrated templates around the space steel bar framework I and the space steel bar framework II, pouring concrete into the templates, and removing the templates after drying and condensation to finish the preparation of the base.
The invention at least comprises the following beneficial effects:
(1) when the collapsed object rushes to the base, the rolled collapsed object can be shunted after contacting the front sharp corner of the triangular protective body, the movement direction of the collapsed object is changed, and the collapsed object is rolled away from two sides of the front sharp corner of the triangular protective body, so that the collapsed object is prevented from directly rolling and impacting the base or the bottom foot of the power transmission tower to cause damage;
(2) the triangular protective body protrudes upwards and is built to be slightly higher than the base, and the triangular protective body is mainly used for preventing collapsed objects from bouncing and moving in rolling collision to cause direct impact damage to the bottom feet of the power transmission tower;
(3) the meaning that triangular type protection body rear end was provided with interior concave surface lies in, after keeping the front end closed angle that has core safeguard function on triangular type protection body, through setting up the pouring material of interior concave surface reduction triangular type protection body as far as, because the transmission tower footing has a plurality ofly usually, naturally need respectively the adaptation dock a plurality of bases, so when pouring this part of preparation in batches, through this kind of structural design, can practice thrift the considerable pouring material, very have realistic meaning, the suitability is very strong.
(4) Base angle alpha of the triangular protection body and height H of the upward bulge of the triangular protection body can be reasonably adjusted according to actual terrain and material stock to be protected during preparation, and the expansibility and the applicability of the design scheme are reflected.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a plan view of the overall structure of the present invention;
FIG. 2 is a side view of the steel reinforcement framework I and the steel reinforcement framework II of the invention integrally assembled and poured;
FIG. 3 is a top view of the assembly of the base of the present invention with the lower reinforcing bars of the three-edged protector;
FIG. 4 is a top view of the reinforcement assembly of the protruding portion of the upper layer of the three-edged protector according to the present invention;
fig. 5 is a top view of the lap joint assembly of the mesh reinforcement bars of the lower mesh reinforcement of the present invention;
fig. 6 is a top view of the lap joint assembly of the individual mesh reinforcement bars of the middle mesh reinforcement of the present invention;
fig. 7 is a structural view of the tie bar with two inverted U-shaped ends according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof. It is to be understood that in the description of the present invention, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are used only for convenience in describing the present invention and for simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically. Further, in the present invention, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. Fig. 1-7 illustrate one implementation of the present invention, including:
the side surface of a base 1 butted with the bottom foot of a power transmission tower is integrally cast and formed with a triangular protective body 2 protruding upwards; the sharp corner 21 at the front end of the triangular protective body 2 corresponds to a collapse surface to be protected; the rear end of the triangular protection body 2 is provided with an inner concave surface 22.
The technical scheme has the advantages that:
(1) when the collapsed object rushes to the base 1, the rolled collapsed object can be shunted after contacting the front-end sharp corner 21 of the triangular protective body 2, the movement direction of the collapsed object is changed, and the collapsed object can roll away from two sides of the front-end sharp corner 21 of the triangular protective body 2, so that the collapsed object is prevented from directly rolling and impacting the base 1 or the bottom foot of the power transmission tower to cause damage;
(2) the triangular protective body 2 protrudes upwards and is built slightly higher than the base 1, and the triangular protective body is mainly used for preventing collapsed objects from bouncing and moving in rolling collision to cause direct impact damage to the bottom feet of the power transmission tower;
(3) the meaning that triangular type protection body 2 rear end is provided with interior concave surface 22 lies in, after keeping behind the front end closed angle that has core safeguard function on triangular type protection body 2, through setting up the pouring material of interior concave surface 22 reduction triangular type protection body 2 as far as, because the transmission tower footing has a plurality ofly usually, naturally need respectively the adaptation dock a plurality of bases 1, so when pouring preparation this part in batches, through this kind of structural design, can practice thrift the pouring material of considerable degree, and realistic meaning has very much, and the suitability is very strong.
(4) Base angle alpha of the triangular-prism-shaped protection body 2 and the height H of the upward bulge of the triangular-prism-shaped protection body 2 can be reasonably adjusted according to actual terrain and material stock to be protected during preparation, and the expansibility and the applicability of the design scheme are reflected.
In another embodiment, a method for preparing a base for preventing mountain landslide from impacting on a high-voltage transmission tower comprises the following steps:
step one, arranging a triangular protective body 2 on one side, close to a mountain, of an original base 1 of a power transmission tower; the triangular protective body 2 is a reinforced concrete cast-in-place member, and the section base angle alpha and the vertical height H of the triangular protective body are adjusted to be the optimal angle and height according to the actual situation.
(the specific regulation rules are that alpha satisfies the control range and ensures that the rock rolling and the debris flow can be smoothly far away from the foundation from the two side surfaces of the triangular protective body, so that the alpha angle is not too large, which causes material waste, and the angle is not too small, which causes the rock rolling and the debris flow to be stacked under the foundation and can not achieve the expected protective effect, the vertical height H is too high, which is not favorable for the reasonable utilization of materials, and the height H is not too small, which can not block the high-elasticity bouncing rock)
Secondly, reinforcing bars are distributed on the foundation of the base 1, reinforcing bar meshes are distributed at the top and the bottom of the foundation of the base 1 in a foundation reinforcing bar distribution mode according to construction safety construction requirements, and if the foundation is too high, a reinforcing bar mesh I with the type slightly lower than that of a reinforcing bar at the top can be additionally distributed in the middle; the reinforcing mesh I is connected into a reinforcing cage I by adopting vertical constructional ribs.
Thirdly, reinforcing the three-edge type protection body 2, arranging reinforcing steel bars at the connection part of the three-edge type protection body 2 and the base 1 by utilizing the transverse extension of a reinforcing steel bar net of the base 1, arranging the transverse reinforcing steel bar net at the top part higher than the base part according to the structural shape, and arranging a reinforcing steel bar net II with the type slightly lower than that of the reinforcing steel bar at the top part in the middle if the reinforcing steel bar net is too high; and the reinforcing mesh II is connected by adopting vertical structural bars, so that a reinforcing cage II is formed.
And step four, supporting the base 1 and the row of bottom dies of the three-edged protection body 2 after the reinforcement is completed according to the section bottom angle alpha and the vertical height H in the step one, wherein the templates are specially-made steel templates so as to meet the structural requirement of the three-edged protection body 2.
And step five, performing concrete pouring on the bottom die supported in the step four, in order to ensure the integrity of the whole foundation, pouring the concrete of the foundation by using the same batch of cement, fly ash, mineral powder and additives in principle, and simultaneously performing pouring, and strictly controlling the pouring process and the condensation process according to the attention points of the concrete pouring.
In another embodiment, a lower layer reinforcing mesh and a middle reinforcing mesh are arranged inside the base at intervals from bottom to top; the lower layer reinforcing mesh 11 and the middle reinforcing mesh 12 are cut into specifications matched with the sharp corner at the front end of the triangular protective body 2 after horizontally extending to the lower part of the triangular protective body 2; a plurality of vertical steel bars I31 are fixedly penetrated in a plurality of meshes of the lower layer steel bar mesh 11 and the middle steel bar mesh 12; the lower ends of the vertical steel bars I31 are respectively lapped at a plurality of cross nodes of the lower-layer steel bar mesh 11 to form a plurality of lower-layer fixing points 111; the upper ends of the vertical steel bars I31 are respectively lapped at a plurality of cross nodes of the middle steel bar mesh 12 to form a plurality of middle fixing points 121; a plurality of two-end inverted U-shaped tie bars 10 are respectively hung on a plurality of lower layer fixing points 111 and middle fixing points 121 to be connected and fixed, and then a three-dimensional space steel reinforcement framework I8 for integral casting is formed.
(the advantage of this kind of structure lies in, many vertical reinforcing bars I31 use both ends to fall the U type lacing wire 10 and cramp, and the overlap joint assembly is easy, further promotes framework of steel reinforcement I8's intensity, framework of steel reinforcement I8 comprises two-layer reinforcing bar net, as the holistic lower extreme of base 1 after pouring the shaping, intensity and stability are better)
In another embodiment, an upper layer of reinforcing mesh 23 is arranged above the inside of the triangular protection body; the upper layer reinforcing mesh 23 is cut into the same specification with the protruding part above the triangular protection body 2; the upper layer reinforcing mesh 23 is arranged right above the sharp corner part of the middle reinforcing mesh 12 at intervals; a plurality of vertical steel bars II 32 are respectively fixedly arranged between the plurality of meshes of the sharp corner parts of the upper layer steel bar mesh 23 and the middle steel bar mesh 12 in a penetrating way; the lower ends of the vertical steel bars II 32 are respectively lapped at a plurality of cross nodes at the pointed parts of the middle steel bar mesh 12 to form a plurality of middle fixing points II 122; the upper ends of the vertical steel bars II 32 are respectively lapped at a plurality of cross nodes of the upper-layer reinforcing mesh 23 to form a plurality of upper-layer fixing points 231; and after the middle reinforcing mesh 12 and the upper reinforcing mesh 23 are respectively fixed by using a plurality of U-shaped tie bars 10 at two ends, a three-dimensional space steel reinforcement framework II 9 for integral casting forming is formed.
(the structure has the advantages that the vertical steel bars II 32 are matched with the tie bars 10 with the two ends inverted U-shaped, the assembly is easy, the strength of the steel bar framework II 9 is further improved, the steel bar framework II 9 is used as the protruding part of the triangular protective body 2 after pouring forming, the stability is better, the steel bar framework I8 and the steel bar framework II 9 integrally form a fully poured framework of the whole base 1 and the triangular protective body 2, the integrity is strong, and the strength of the device after integral pouring is further improved.)
In another embodiment, the lower end of the base is integrally cast and provided with a plurality of reinforced concrete piles 4 which are distributed in a 3 × 3 manner and are used for being embedded into a foundation; the upper end of the supporting steel bar 41 in the reinforced concrete pile 4 is provided with a cross-shaped hanging joint 42; the cross-shaped hanging joint 42 is provided with a plurality of hooks 43 which are higher than the lower layer reinforcing mesh 11 in configuration height.
(this structure is advantageous in that, by arranging a plurality of 3 x 3 reinforced concrete piles 4 at the lower end of the base 1, the load of the power transmission tower can be more uniformly fed into the foundation, further ensuring the support and stability of the whole base 1. the supporting steel bars 41 are matched with the cross-shaped hanging connectors 43 at the upper end, when the arrangement height of the plurality of hooks is higher than that of the lower layer steel bar net 11, the concrete can be hooked after the concrete is poured to form a larger anchoring force, the strength of the structure is improved, thereby forming a steel bar framework which can be connected into a whole, the integration degree is high, and the integral strength after the base 1 is poured is further improved)
In another embodiment, a method for preparing a base for preventing mountain landslide from impacting on a high-voltage transmission tower comprises the following steps:
step one, respectively placing a plurality of supporting steel bars 41 into foundation pile holes distributed by 3 multiplied by 3, penetrating two layers of horizontal steel bars above the foundation pile holes, and mutually crossing and overlapping to form a lower layer steel bar mesh 11 and a middle part steel bar mesh 12;
step two, cutting off redundant parts of the lower layer reinforcing mesh 11 and the middle reinforcing mesh 12 by using a reinforcing steel bar cutting machine, and stacking a plurality of reinforcing steel bars obtained by cutting to one side for later use;
step three, processing a plurality of reinforcing steel bars with different lengths separated in the step two into proper lengths, and directly throwing the reinforcing steel bars into each grid between the lower layer reinforcing mesh 11 and the middle reinforcing mesh 12, thereby forming a plurality of vertical reinforcing steel bars I31; the upper ends and the lower ends of the vertical steel bars I31 are clamped and hooped on the middle fixing points 121 and the lower fixing points 111 by using the bent parts of the double-end inverted U-shaped tie bars 10, so that the assembly of the space steel bar framework I8 is completed; bending each end part of the cross-shaped hanging connectors 42 at the upper ends of the supporting steel bars 41 to the hooks 43, and then overlapping the ends on the vertical steel bars I31 above the lower-layer steel bar mesh 11, thereby completing the steel bar overlapping between the lower-layer steel bar mesh 11 and the plurality of reinforced concrete piles 4;
fourthly, a plurality of horizontal steel bars penetrate through one side of the upper end of the middle steel bar net, and an upper steel bar net 23 is formed after the horizontal steel bars are mutually crossed and lapped;
fifthly, cutting off the redundant part of the upper layer reinforcing mesh 23 by using a reinforcing steel bar cutting machine, and stacking a plurality of reinforcing steel bars obtained by cutting to one side for later use;
step six, processing the plurality of steel bars obtained in the step two and the step five into proper lengths, and directly throwing the steel bars into meshes of the sharp corners of the upper layer steel bar mesh 23 and the middle part steel bar mesh 12, thereby forming a plurality of vertical steel bars II 32; the upper ends and the lower ends of a plurality of vertical steel bars II 23 are fastened, clamped and fixed on a plurality of upper fixing points 231 and a middle fixing point 121 by using a plurality of bent parts of the tie bars 10 with the two ends inverted U-shaped, so that the assembly of the steel space steel reinforcement framework II 9 is completed;
and seventhly, erecting an upper template and a lower template on the peripheries of the space steel bar framework I8 and the space steel bar framework II 9, pouring concrete into the templates, and removing the templates after drying and condensation to finish the preparation of the base 1.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art. While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. A mountain collapse object impact base is prevented to high voltage transmission tower/communication tower which characterized in that includes:
the side surface of the base which is butted with the footing of the power transmission tower/communication tower is integrally cast and formed with a triangular protective body which protrudes upwards; the sharp corner at the front end of the triangular protective body corresponds to a collapse surface to be protected; the rear end of the triangular protection body is provided with an inner concave surface.
2. The method for preparing the base for preventing the mountain collapse objects from impacting the high-voltage transmission tower/communication tower according to claim 1, wherein the method comprises the following steps:
step one, arranging a triangular protective body on one side, close to a mountain, of an original base of a power transmission tower; the triangular protective body is a reinforced concrete cast-in-place member, and the section base angle alpha and the vertical height H of the triangular protective body are adjusted to be the optimal angle and height according to the actual situation;
secondly, reinforcing bars are distributed on the base foundation, reinforcing bar meshes are distributed at the top and the bottom of the base foundation according to the construction safety construction requirement in a foundation reinforcing bar distribution mode, and if the foundation is too high, a reinforcing bar mesh I with the type slightly lower than that of a reinforcing bar at the top can be additionally distributed in the middle; the reinforcing mesh I is connected into a reinforcing cage I by adopting vertical constructional bars;
thirdly, reinforcing the three-edge type protection body, wherein the reinforcing steel bar arrangement of the connection part of the three-edge type protection body and the base foundation is realized by utilizing the transverse extension of the reinforcing steel bar net of the base foundation, the transverse reinforcing steel bar net is arranged at the top part higher than the base part according to the structural shape, and if the transverse reinforcing steel bar net is too high, the reinforcing steel bar net II with the type slightly lower than that of the reinforcing steel bar at the top part can be additionally arranged in the middle; the reinforcing mesh II is connected by adopting vertical constructional bars, so that a reinforcing cage II is formed;
step four, supporting the base and the row bottom die of the triangular protection body after the reinforcement is completed according to the section bottom angle alpha and the vertical height H in the step one, wherein the used template is a special steel template so as to meet the structural requirement of the triangular protection body;
and step five, performing concrete pouring on the bottom die supported in the step four, in order to ensure the integrity of the whole foundation, pouring the concrete of the foundation by using the same batch of cement, fly ash, mineral powder and additives in principle, and simultaneously performing pouring, and strictly controlling the pouring process and the condensation process according to the attention points of the concrete pouring.
3. A mountain collapse object impact base is prevented to high voltage transmission tower/communication tower which characterized in that includes: the side surface of the base which is butted with the footing of the power transmission tower/communication tower is integrally cast and formed with a triangular protective body which protrudes upwards; the sharp corner at the front end of the triangular protective body corresponds to a collapse surface to be protected; an inner concave surface is arranged at the rear end of the triangular protection body; a lower layer reinforcing mesh and a middle reinforcing mesh are arranged in the base at intervals from bottom to top; the lower layer reinforcing mesh and the middle reinforcing mesh are integrally cut and cut into specifications matched with the sharp angle at the front end of the triangular protective body after horizontally extending to the lower part of the triangular protective body; a plurality of vertical steel bars I are fixedly penetrated in a plurality of meshes of the lower layer steel bar mesh and the middle layer steel bar mesh; the lower ends of the vertical steel bars I are respectively lapped at a plurality of cross nodes of the lower layer steel bar mesh to form a plurality of lower layer fixed points; the upper ends of the vertical steel bars I are respectively lapped at a plurality of cross nodes of the middle steel bar mesh to form a plurality of middle fixing points; a plurality of two-end inverted U-shaped tie bars are respectively hung on a plurality of lower-layer fixed points and middle fixed points to be connected and fixed, and then a three-dimensional space reinforcement framework I for integral casting is formed.
4. The base for preventing the impact of the mountain-falling objects on the high-voltage transmission tower/communication tower as claimed in claim 3, wherein the triangular protective body is internally provided with an upper layer of reinforcing mesh; the upper layer reinforcing mesh is cut into the same specification with the protruding part above the triangular protection body; the upper layer of reinforcing mesh is arranged right above the pointed angle part of the middle reinforcing mesh at intervals; a plurality of vertical steel bars II are respectively fixedly penetrated between the meshes of the sharp corner parts of the upper layer steel bar net and the middle layer steel bar net; the lower ends of the vertical reinforcing steel bars II are respectively lapped at a plurality of cross nodes of the pointed angle part of the middle reinforcing steel bar net to form a plurality of middle fixing points II; the upper ends of the vertical steel bars II are respectively lapped at a plurality of cross nodes of the upper-layer steel bar mesh to form a plurality of upper-layer fixed points; and after the middle reinforcing mesh and the upper reinforcing mesh are respectively fixed by using a plurality of U-shaped tie bars at two ends, a three-dimensional space reinforcing cage II for integral casting is formed.
5. The base for preventing the mountain collapse objects from impacting the high-voltage transmission tower/communication tower as claimed in claim 4, wherein a plurality of 3 x 3 distributed reinforced concrete piles for embedding into the foundation are integrally cast and formed at the lower end of the base; the upper end of the supporting steel bar in the reinforced concrete pile is provided with a cross-shaped hanging joint; the cross hitching head is provided with a plurality of hooks with the configuration height higher than that of the lower layer reinforcing mesh.
6. The method for preparing the base for preventing the mountain collapse objects of the high-voltage transmission tower/communication tower from impacting the base according to claim 5, wherein the method comprises the following steps:
step one, respectively placing a plurality of supporting steel bars into foundation pile holes distributed by 3 multiplied by 3, penetrating two layers of horizontal steel bars above the foundation pile holes, and forming a lower layer steel bar mesh and a middle layer steel bar mesh after mutually crossing and lapping;
step two, cutting off redundant parts of the lower layer reinforcing mesh and the middle reinforcing mesh by using a reinforcing steel bar cutting machine, and stacking a plurality of reinforcing steel bars obtained by cutting to one side for later use;
step three, processing the plurality of steel bar rods with different lengths separated in the step two into proper lengths, and directly throwing the steel bar rods into each grid between the lower layer steel bar mesh and the middle part steel bar mesh, so as to form a plurality of vertical steel bars I; the upper ends and the lower ends of the vertical steel bars I are clamped and hooped on the middle fixing points and the lower fixing points by using the bending parts of the double-end inverted U-shaped tie bars, so that the assembly of the space steel bar framework I is completed; bending each end part of a cross-shaped hanging joint at the upper end of the supporting steel bar to a hook, and then overlapping the end part on the vertical steel bar I above the lower layer steel bar mesh, thereby completing the steel bar overlapping between the lower layer steel bar mesh and the plurality of reinforced concrete piles;
fourthly, a plurality of horizontal steel bars penetrate through one side of the upper end of the middle steel bar net, and an upper steel bar net is formed after the horizontal steel bars are mutually crossed and lapped;
fifthly, cutting off the redundant part of the upper layer of the reinforcing mesh by using a reinforcing steel bar cutting machine, and stacking a plurality of reinforcing steel bars obtained by cutting to one side for later use;
step six, processing the plurality of steel bar rods obtained in the step two and the step five into proper lengths, and directly throwing the steel bar rods into meshes at the sharp corners of the upper layer steel bar mesh and the middle layer steel bar mesh so as to form a plurality of vertical steel bars II; the upper ends and the lower ends of a plurality of vertical steel bars II are fastened, clamped and fixed on a plurality of upper layer fixed points and middle fixed points by using a plurality of bent parts of the tie bars with the two ends inverted U-shaped, so that the assembly of the steel space steel bar framework II is completed;
and seventhly, erecting up-down integrated templates around the space steel bar framework I and the space steel bar framework II, pouring concrete into the templates, and removing the templates after drying and condensation to finish the preparation of the base.
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|---|---|---|---|---|
| CN104313997A (en) * | 2014-09-30 | 2015-01-28 | 南宁市第一中学 | Buffer triangular protection body for flood resistance of bridge |
| CN207919448U (en) * | 2017-06-14 | 2018-09-28 | 合肥学院 | A kind of anti-Rolling Stone crash device of mountain area bridge pier |
| CN208668251U (en) * | 2017-11-28 | 2019-03-29 | 合肥学院 | A kind of protective device of mountain area bridge pier anti-Rolling Stone and mud-rock-flow-impact |
| CN213205160U (en) * | 2020-08-07 | 2021-05-14 | 成都鼎洋构件有限责任公司 | Protection base of electric power iron tower |
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2022
- 2022-01-05 CN CN202210008674.0A patent/CN114278144B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313997A (en) * | 2014-09-30 | 2015-01-28 | 南宁市第一中学 | Buffer triangular protection body for flood resistance of bridge |
| CN207919448U (en) * | 2017-06-14 | 2018-09-28 | 合肥学院 | A kind of anti-Rolling Stone crash device of mountain area bridge pier |
| CN208668251U (en) * | 2017-11-28 | 2019-03-29 | 合肥学院 | A kind of protective device of mountain area bridge pier anti-Rolling Stone and mud-rock-flow-impact |
| CN213205160U (en) * | 2020-08-07 | 2021-05-14 | 成都鼎洋构件有限责任公司 | Protection base of electric power iron tower |
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