CN207109842U - A kind of rock foundation pole and tower foundation structure - Google Patents

A kind of rock foundation pole and tower foundation structure Download PDF

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Publication number
CN207109842U
CN207109842U CN201721030702.XU CN201721030702U CN207109842U CN 207109842 U CN207109842 U CN 207109842U CN 201721030702 U CN201721030702 U CN 201721030702U CN 207109842 U CN207109842 U CN 207109842U
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drilling platform
rock
horizontal drilling
concrete
reinforcement cage
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CN201721030702.XU
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杨大楼
张鹰
邵明山
高学存
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Henan And Germany New Energy Co Ltd
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Henan And Germany New Energy Co Ltd
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Abstract

The utility model discloses a kind of rock foundation pole and tower foundation structure, including concrete horizontal drilling platform;The basic hole on concrete horizontal drilling platform surface is opened in vertically downward, and basic hole extends to rock interior;Basic hole is provided with more earth anchor reinforcing bars on concrete horizontal drilling platform, the lower end of every earth anchor reinforcing bar all extends to rock interior;Steel reinforcement cage built-in fitting is provided with basic hole, has spiral stiffener set around steel reinforcement cage built-in fitting and Duo Gen earth anchor steel-bar arrangements;More earth anchor reinforcing bars of spiral stiffener set, steel reinforcement cage built-in fitting and stretching concrete horizontal drilling platform upper surface are respectively positioned in concrete plummer.The utility model advantage is mainly reflected in the stability that overall pole and tower foundation structure takes full advantage of rock in ground.70% expense can be saved through site operation checking, shortened for 60% duration.Due to not needing explosion and large area to excavate, the steadiness of original ground is not destroyed, eliminates the potential safety hazard that ground loosening belt comes.

Description

A kind of rock foundation pole and tower foundation structure
Technical field
Pole and tower foundation structure is the utility model is related to, more particularly, to a kind of rock foundation pole and tower foundation structure.
Background technology
Pole and tower foundation is to fix shaft tower on the ground, for stablizing shaft tower, ensure shaft tower not run-off the straight, collapse, under It is heavy and on the facility that pulls out etc..On the basis of shaft tower is fixed on by foundation bolt.Shaft tower include photovoltaic plant tower bar, communication iron tower, Electric force pole tower etc..The selection of pole and tower foundation pattern, should be with reference to the features such as shaft tower construction regional geology, execution conditions and shaft tower pattern Consider;Pole and tower foundation construction generally use digging up and filling in mode, the force request of shaft tower is met by concrete chassis.
For ragstone ground, generally use rock anchor assembly class basis, dowel or foundation bolt are directly embedded into petrosal foramen It is interior, then dowel or foundation bolt is become entirety with rock by concrete grouting.Rock anchor assembly class basis
There are rigors for the intensity of rock in ground, and engineering site geological environment complexity is various, differs surely full The requirement of sufficient rock anchored pile foundation, such as hard crisp stone body, the relatively low stone body of compression strength etc.;And the prospecting of field geology environment is difficult Degree is high, and cost is high, and time-consuming.Also, the relatively low roughness of rock surface of most rate of decay is low, is combined loosely with concrete Gu if building concrete frame tower foundation directly on rock foundation, overall construction intensity is low, anti-to topple over ability, it is impossible to real Apply on border.Unstable problem is combined for rock and concrete, if strengthening two by squeezing into stiffener in rock Person's adhesion, problem be present is rock foundation surface irregularity, and miniature portable churn can not work, and part mountain area large power drill Machine can not show up, and cause constructional difficulties.If destroying rock texture using the method for explosion, then repaiied by the method for digging up and filling in The problem of building pole and tower foundation, existing be:1st, explosion can cause the region ground to loosen, and destroy the stability of original ground, backfill Though soil is also difficult to the native structural strength that restores to the original state by compacting;To meet the stability requirement on basis, it is necessary to increase basis Size, construction cost increase.2nd, without utilizing the rock stability with periphery soil layer strong bonded in itself.3rd, needed for digging up and filling in Construction cost, cost of labor and equipment cost it is all higher, and conditions of transportation it is severe mountain environment construction not side Just.
Utility model content
The utility model purpose is to provide low a kind of safe and reliable, stabilized structure, construction cost, short time limit, geographical ring The small rock foundation pole and tower foundation structure of border limitation.
To achieve the above object, the utility model takes following technical proposals:
A kind of rock foundation pole and tower foundation structure described in the utility model, including it is arranged on the pole and tower foundation construction model It is used for the concrete horizontal drilling platform of one-shot job in enclosing;The concrete horizontal drilling platform surface is opened in vertically downward Basic hole, the rock interior that the basic hole is extended to below concrete horizontal drilling platform;Concrete horizontal drills Basic hole is provided with more earth anchor reinforcing bars on platform, the lower end of the every earth anchor reinforcing bar all extends to the rock interior And concrete horizontal drilling platform upper surface is extended in upper end;Steel reinforcement cage built-in fitting, the reinforcing bar are provided with basic hole Concrete horizontal drilling platform upper surface is extended in the upper end of cage built-in fitting, is set around steel reinforcement cage built-in fitting and Duo Gen earth anchor reinforcing bars It is equipped with spiral stiffener set;On the spiral stiffener set, steel reinforcement cage built-in fitting and stretching concrete horizontal drilling platform The more earth anchor reinforcing bars on surface are respectively positioned in concrete plummer.
The upper and lower part of the spiral stiffener set is set in the upper and lower part of the steel reinforcement cage built-in fitting, The middle part of spiral stiffener set is sleeved on the earth anchor reinforcing bar for extending the horizontal drilling platform.
The steel reinforcement cage built-in fitting is by more vertical main reinforcements and the stirrup being fixed on the more vertical main reinforcements The rectangle stand formed;The lower end of more vertical main reinforcements is the U-shaped structure extended laterally, more vertical main reinforcements Upper end is foundation bolt structure.
Longitudinal section positioned at the concrete plummer of the horizontal drilling platform upper surface is inverted T-shaped structure.
The utility model advantage major embodiment is in the following areas:
1st, overall pole and tower foundation structure takes full advantage of the stability of rock in ground.Concrete plummer bottom it is each pre- Embedded part and concrete integrative-structure form " mortise and tenon " structure of high bonding strength with rock foundation down into rock interior.
2nd, there are some earth anchor reinforcing bars between concrete plummer and rock, add pole and tower foundation structural strength, enhance The anti-ability of toppling over of shaft tower;By pre-buried spiral stiffener set, the connection between concrete plummer and ground is enhanced, together When effect of contraction is played to concrete, enhance cracking resistance, the rupture strength of concrete plummer;Pre-buried spiral stiffener set Certain effect of contraction is also played to the rock in ground with earth anchor reinforcing bar collective effect, make rock formed one it is integrated High-strength structure body, reduce dependence of the overall structure to rock strength.
3rd, construction process does not need explosion, is excavated without large area, without backfill and backfill rammed earth, both reduces cost Ensure safety again;Concrete horizontal drilling platform is built on rock, construction bar is provided for small portable large-diameter drill Part, work progress do not need large scale equipment, and small portable instrument can be completed, easy for construction, affected by environment small, practicality By force, be advantageous in the severe Mountainous Regions popularization and application of conditions of transportation, can save 70% expense through site operation checking, contract Short 60% duration.Simultaneously as explosion and large area excavation need not be carried out, reduce vegetation deterioration, do not destroy original ground Steadiness, eliminate the potential safety hazard that ground loosening belt comes.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of steel reinforcement cage built-in fitting described in the utility model.
Fig. 3 is Fig. 2 A-A to cross section structure diagram.
Embodiment
Embodiment of the present utility model is elaborated below in conjunction with the accompanying drawings, the present embodiment is with the utility model technology Implemented under premised on scheme, give detailed embodiment and specific operating process, but protection of the present utility model Scope is not limited to following embodiments.
As Figure 1-3, a kind of rock foundation pole and tower foundation structure described in the utility model, including it is arranged on shaft tower base It is used for the concrete horizontal drilling platform 3 of one-shot job in plinth boundary of works area;It is flat that concrete horizontal drilling is opened in vertically downward The basic hole on the surface of platform 3, basic hole are extended to inside the rock 2 of the lower section of concrete horizontal drilling platform 3;Concrete horizontal Basic hole is provided with more earth anchor reinforcing bars 4 on drilling platform 3, the lower end of every earth anchor reinforcing bar 4 is all extended to inside rock 2 And the upper surface of concrete horizontal drilling platform 3 is extended in upper end;Steel reinforcement cage built-in fitting is provided with basic hole, steel reinforcement cage is pre- The upper surface of concrete horizontal drilling platform 3 is extended in the upper end of embedded part, is set around steel reinforcement cage built-in fitting and Duo Gen earth anchors reinforcing bar 4 There is spiral stiffener to cover 5, the upper and lower part of spiral stiffener set 5 is set in the top of steel reinforcement cage built-in fitting with Portion, the middle part of spiral stiffener set 5 are sleeved on the earth anchor reinforcing bar 4 for extending the upper surface of concrete horizontal drilling platform 3;Spiral shell Revolve stiffener set 5, steel reinforcement cage built-in fitting and the 4 equal position of more earth anchor reinforcing bars for stretching out the upper surface of concrete horizontal drilling platform 3 In in concrete plummer 6, the longitudinal section positioned at the concrete plummer 6 of the upper surface of concrete horizontal drilling platform 3 is inverted T-shaped Structure.
Steel reinforcement cage built-in fitting is by four vertical main reinforcement 7 and 8 structures of stirrup being fixed on four vertical main reinforcements 7 Into rectangle stand;The lower end of four vertical main reinforcements 7 is the structure of U-shaped 9 extended laterally, four vertical main reinforcements 7 Upper end is the structure of foundation bolt 10.
Rock foundation pole and tower foundation construction method described in the utility model is:
The first step, debris earthing is cleared up to the surface of rock 2 is exposed on the ground 1 of the pole and tower foundation position determined, so One-shot job horizontal plane is built as horizontal drilling platform 2 by the use of concrete in pole and tower foundation boundary of works area afterwards, and horizontal drilling is put down Platform 3 flushes with or slightly higher than the peak of rock 2 with the peak of rock 2;
Second step, the position that pole and tower foundation central point and steel reinforcement cage built-in fitting are placed is determined, bored using portable heavy caliber Machine bores downwards basic hole on the surface of horizontal drilling platform 3, and basic hole extends to the rock interior, forms connection " mortise and tenon " knot Structure;The diameter in basic hole determines according to the shapes and sizes of steel reinforcement cage built-in fitting, meets that filling requires;
3rd step, on the surface of horizontal drilling platform 3, bore several earth anchor steel downwards using portable impact drill around basic hole Muscle hole, each earth anchor reinforced hole are all extended to inside rock 2, the diameter of earth anchor reinforced hole, position, quantity by rock 2 size, The size of pole and tower foundation determines according to design discipline;
4th step, steel reinforcement cage built-in fitting is placed in basic hole, earth anchor reinforcing bar 4 is placed in each earth anchor reinforced hole, steel Extend the surface of horizontal drilling platform 3 in the top of muscle cage built-in fitting and earth anchor reinforcing bar 4;
5th step, spiral stiffener set 5 is made, the upper and lower part of spiral stiffener set 5 is set in reinforcing bar The upper and lower part of cage built-in fitting, the middle part of spiral stiffener set 5 are sleeved on the earth anchor reinforcing bar for extending horizontal drilling platform 3 On 4;Spiral stiffener set 5 can prevent that the concrete foundation after solidification from being influenceed and fractureed by external force in use;
6th step, concrete cast template is installed on horizontal drilling platform 3, it is pre- that casting concrete forms cladding reinforcing steel bar cage The concrete plummer 6 of embedded part, earth anchor reinforcing bar 4 and spiral stiffener set 5;It is noted that steel reinforcement cage built-in fitting in casting process Whether whether deviation, upper surface are horizontal for position, if any deviation, adjust built-in fitting position in time, steel is reaffirmed after the completion of pouring Whether muscle cage built-in fitting position waits concrete plummer 6 to solidify, pole and tower foundation is conserved after deviation, waits shaft tower base Plinth stabilized structure is molded;Longitudinal section positioned at the concrete plummer 6 of the upper surface of horizontal drilling platform 3 is inverted T-shaped structure.
In 5th step, as shown in Figure 2,3, steel reinforcement cage built-in fitting is to be fixed on four by four vertical main reinforcements 7 and interval The rectangle stand that multiple stirrups 8 on vertical main reinforcement 7 are formed(Certainly, steel reinforcement cage built-in fitting is alternatively other structures form Stand);The lower end of four vertical main reinforcements 7 is the structure of U-shaped 9 extended laterally, and the upper end of four vertical main reinforcements 7 is equal For the structure of foundation bolt 10, for the shaft tower that is connected.

Claims (4)

  1. A kind of 1. rock foundation pole and tower foundation structure, it is characterised in that:Used including being arranged in the pole and tower foundation boundary of works area In the concrete horizontal drilling platform of one-shot job;The basis on the concrete horizontal drilling platform surface is opened in vertically downward Hole, the rock interior that the basic hole is extended to below concrete horizontal drilling platform;On concrete horizontal drilling platform Basic hole is provided with more earth anchor reinforcing bars, the lower end of the every earth anchor reinforcing bar all extends to the rock interior and upper end Extend concrete horizontal drilling platform upper surface;Steel reinforcement cage built-in fitting is provided with basic hole, the steel reinforcement cage is pre-buried Concrete horizontal drilling platform upper surface is extended in the upper end of part, has spiral shell around steel reinforcement cage built-in fitting and Duo Gen earth anchor steel-bar arrangements Revolve stiffener set;The spiral stiffener set, steel reinforcement cage built-in fitting and stretch out concrete horizontal drilling platform upper surface More earth anchor reinforcing bars are respectively positioned in concrete plummer.
  2. A kind of 2. rock foundation pole and tower foundation structure according to claim 1, it is characterised in that:The spiral stiffener The upper and lower part of set is set in the upper and lower part of the steel reinforcement cage built-in fitting, the middle part suit of spiral stiffener set On the earth anchor reinforcing bar for extending the horizontal drilling platform.
  3. A kind of 3. rock foundation pole and tower foundation structure according to claim 1 or 2, it is characterised in that:The steel reinforcement cage is pre- Embedded part is the rectangle stand that is made up of more vertical main reinforcements and the stirrups being fixed on the more vertical main reinforcements;It is more The lower end of the vertical main reinforcement of root is the U-shaped structure extended laterally, and the upper end of more vertical main reinforcements is foundation bolt knot Structure.
  4. A kind of 4. rock foundation pole and tower foundation structure according to claim 1 or 2, it is characterised in that:Positioned at the level The longitudinal section of the concrete plummer of drilling platform upper surface is inverted T-shaped structure.
CN201721030702.XU 2017-08-17 2017-08-17 A kind of rock foundation pole and tower foundation structure Active CN207109842U (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721030702.XU CN207109842U (en) 2017-08-17 2017-08-17 A kind of rock foundation pole and tower foundation structure

Publications (1)

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CN207109842U true CN207109842U (en) 2018-03-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112411602A (en) * 2020-11-17 2021-02-26 同济大学 Anchor bolt group device for improving anti-cracking performance of power transmission tower pile foundation and manufacturing method
CN112411605A (en) * 2020-11-30 2021-02-26 国网四川省电力公司电力科学研究院 Reinforcement reinforcing method and system for foundation anchor bolt of power transmission tower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112411602A (en) * 2020-11-17 2021-02-26 同济大学 Anchor bolt group device for improving anti-cracking performance of power transmission tower pile foundation and manufacturing method
CN112411605A (en) * 2020-11-30 2021-02-26 国网四川省电力公司电力科学研究院 Reinforcement reinforcing method and system for foundation anchor bolt of power transmission tower

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