CN108104150A - Transmission tower cast-in-situ reinforced concrete hollow borehole class basis and its construction method - Google Patents
Transmission tower cast-in-situ reinforced concrete hollow borehole class basis and its construction method Download PDFInfo
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- CN108104150A CN108104150A CN201711238251.3A CN201711238251A CN108104150A CN 108104150 A CN108104150 A CN 108104150A CN 201711238251 A CN201711238251 A CN 201711238251A CN 108104150 A CN108104150 A CN 108104150A
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- Prior art keywords
- borehole
- cast
- reinforced concrete
- transmission tower
- situ reinforced
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Foundations (AREA)
Abstract
The present invention relates to a kind of transmission tower cast-in-situ reinforced concrete hollow borehole class basis and its construction methods；The basis includes steel reinforcement cage, internal lining pipe and fixing piece, and spoir during borehole can be backfilled in the internal lining pipe, and rest part has poured concrete in the borehole.The foundation construction flow includes basic pore-forming, internal lining pipe and steel reinforcement cage positioning, backfill spoir and internal lining pipe bind, fixing piece positions and cast concrete.The cast-in-situ reinforced concrete hollow borehole class basis of the present invention and its construction method, the dosage and reduction for reducing concrete abandon earth volume, have many advantages, such as cost-effective, environmentally friendly.
Description
Technical field
The invention belongs to transmission line foundation construction methods, and in particular to a kind of transmission tower cast-in-situ reinforced concrete hollow
Borehole class basis and its construction method.
Background technology
Transmission tower is the carrier for building transmission line of electricity, is important lifeline engineering；Pole and tower foundation is as transmission tower
A part and ultra-high-tension power transmission line in one of important composition；Pole and tower foundation can ensure the stability of shaft tower, for transmission of electricity
The safe operation of circuit provides safeguard.
At present, common pole and tower foundation has cast in situ concrete foundation, can ensure the stability of shaft tower to a certain extent；But
There are the following problems for cast in situ concrete foundation：Spoir is more, big to ambient contamination after excavation, and cast-in-place concrete pile cost is high,
Prefabricated tubular pile transport is inconvenient, and the splicing of cast-in-place concrete steel-pipe pile steel pipe is cumbersome and corrosion resistance is low etc.；And China's high pressure is defeated
The construction of electric line is remained in based on manpower, and the state supplemented by machinery, mechanization of building operation degree is not high enough, adds work
Cost and operation intensity；Therefore, there is an urgent need for one kind can construction technology it is simple, it is workable, convenient for quality control, supervision and ring
Protect the pole and tower foundation saved.
The content of the invention
It is more that the object of the invention predominantly solves spoir after conventional foundation excavates, big to ambient contamination, cost is high, is difficult to
It transports and the problems such as cumbersome and corrosion resistance of constructing is low, provides a kind of transmission tower cast-in-situ reinforced concrete hollow borehole class base
Plinth and its construction method.
The structural shape of the present invention is as follows：
A kind of transmission tower cast-in-situ reinforced concrete hollow borehole class basis, the hollow borehole basis is less than including diameter
The steel reinforcement cage of the borehole, the fixing piece and internal lining pipe set gradually from top to bottom in the steel reinforcement cage, it is improved in that
The internal lining pipe upper end is equipped with the open tube for placing filler, and the filler is spoir when digging the borehole；Except described
Outside filler, the gap of the hollow borehole is filled with concrete.
Further, the upper end of the fixing piece is basseted, and its part basseted is equipped with fixed connection
Part, lower end are equipped with the anchor disk for being laterally connected in institute's fixing piece.
Preferably, the composition proportion of the concrete is as follows：
General 653-732 kilograms of 42.5 cement of silicon；SiO2More than 85%, 0.31 μm of average grain diameter；Admixture 189-235kg,
Maximum particle diameter is 0.5 μm；Quartz sand 1125-1310kg, grain size 0.16-1.25mm；Additive 35-70kg；Water 110-
145kg。
Preferably, the filler is spoir when digging the borehole.
Preferably, the transmission tower includes the angular pole erect by 4 and 4 horizontal side rods surround a square-shaped frame, institute
It states and diameter of Spherical Volume energy consumer is equipped in frame, the annulus that the diameter of Spherical Volume energy consumer is formed by two bar steel plate curlings mutually hangs down
Orthogonal fork is formed, and horizontal plane where the centre of sphere is symmetrical arranged 4 T-shaped companies being connected with the horizontal side rod with annulus intersection
Fitting；The T-shaped connector is connected with the Corner Strapped of the frame；
The circle diameter is the 60% of the frame catercorner length；
The angular pole is by the connector or is fixedly welded on the fixing piece.
The construction process of the present invention is as follows：
A kind of construction process on transmission tower cast-in-situ reinforced concrete hollow borehole class basis, it is improved in that should
Flow includes the following steps：
Step 1：Borehole；
Step 2：Internal lining pipe and steel reinforcement cage are positioned；
Step 3：Filler is filled out in the internal lining pipe, and is bound to the internal lining pipe；
Step 4：Fixing piece is positioned；
Step 5：To remaining gap cast concrete in the borehole and vibrate.
Further, the step 1 includes：According to design drawing to the foundation location, determine the key dimension, dig
Hole is simultaneously levelling to the bottom hole portion clear bottom of progress.
Further, after the completion of the step 2 includes steel reinforcement cage binding, the internal lining pipe is positioned and fixed
It is then whole to transfer in the borehole and the steel reinforcement cage is positioned and fixed in the steel reinforcement cage.
Further, the step 3 includes the use of filler described in funnel and fills to the internal lining pipe.
Further, the step 4 includes：The fixing piece direction is determined according to design drawing requirement, and utilizes anchor disk
Position the fixing piece.
The beneficial effects of the present invention are：
(1) basis provided by the invention is convenient for construction, internal lining pipe, backfill and the concrete of use it is all easily prepared or
It arrives, engineering efficiency is improved from the angle of material.
(2) basic durability provided by the invention is good, and internal lining pipe of the invention adds the high-strength lights such as sandpipe using fiberglass
Anti-corrosion material, solve basis endurance issues；
(3) basic economical environment-protective provided by the invention enters the method for internal lining pipe by using backfill earthen backfill, has saved mixed
Solidifying soil dosage；Spoir amount is reduced simultaneously, reduces the pollution to ambient enviroment；
(4) construction method provided by the invention ensure that mass of foundation, steel reinforcement cage binding and concrete cast and common filling
It is identical to note stake, technology maturation, pile quality is stablized.
Description of the drawings
Fig. 1 is the structure diagram on cast-in-situ reinforced concrete hollow borehole class basis of the present invention；
Fig. 2 is the A-A cross-section diagrams of the present invention；
Fig. 3 is the B-B cross-section diagrams of the present invention；
Fig. 4 is the shaft tower figure of the present invention；
Fig. 5 is the step 1 of the construction process of the present invention；
Fig. 6 is the step 2 of the construction process of the present invention；
Fig. 7 is the step 3 of the construction process of the present invention；
Fig. 8 is the step 4 of the construction process of the present invention；
Fig. 9 is the step 5 of the construction process of the present invention；
Wherein, 1- fixing pieces；2- connectors；3- concrete；4- ground；5- anchor disks；6- steel reinforcement cages；7- internal lining pipes；8- is abandoned
Soil；A-A cross-section diagrams, B-B cross-section diagrams difference are as shown in Figure 2 and Figure 3；9- angular poles, the horizontal side rods of 10-, 11-T type connectors, 12- balls
Shape space energy consumer.
Specific embodiment
The cast-in-situ reinforced concrete hollow borehole class basis of the present invention and its construction method are done into one below in conjunction with the accompanying drawings
Walk detailed description.
The present invention is mainly by fixing piece 1, connector 2, concrete 3, anchor disk 5, steel reinforcement cage 6, internal lining pipe 7, spoir 8, angular pole
9th, a few part compositions such as horizontal side rod 10, T-shaped connector 11 and diameter of Spherical Volume energy consumer 12, as shown in Figure 1, A-A cross-section diagrams, B-
B cross-section diagrams difference is as shown in Figure 2 and Figure 3；
A kind of transmission tower cast-in-situ reinforced concrete hollow borehole class basis, acting section are hollow cast-in-situ steel reinforced concrete knot
Configuration formula, the internal lining pipe 7 including upper end opening, the spoir 8 during by basic pore-forming are backfilling into internal lining pipe 7, and internal lining pipe is below 7
3 back cover of cast-in-situ steel reinforced concrete.
The composition proportion of the concrete 3 is as follows：
General 653-732 kilograms of 42.5 cement of silicon；SiO2 is more than 85%, 0.31 μm of average grain diameter；Admixture 189-235kg,
Maximum particle diameter is 0.5 μm；Quartz sand 1125-1310kg, grain size 0.16-1.25mm；Additive 35-70kg；Water 110-
145kg。
7 material of internal lining pipe adds the anti-corrosion material of the high-strength lights such as sandpipe using fiberglass.
The internal lining pipe 7 is positioned and secured in steel reinforcement cage 6, is integrally fastened in the borehole on the basis.
Fixing piece 1 is placed in 7 top of internal lining pipe, and the number of the fixing piece is at least 4,1 upper end and is exposed to ground and leads to
The angular pole of connector 2 and the shaft tower is crossed, lower end acting section is placed in by connector 2 and the fixation of anchor disk 5 in steel reinforcement cage 6.
As shown in figure 4, the transmission tower includes the angular pole erect by 4 and 4 horizontal side rods surround a square-shaped frame,
Diameter of Spherical Volume energy consumer is equipped in the frame, the diameter of Spherical Volume energy consumer is mutual by the annulus that two bar steel plate curlings form
Square crossing is formed, horizontal plane where the centre of sphere and annulus intersection be symmetrical arranged 4 be connected with the horizontal side rod it is T-shaped
Connector；The T-shaped connector is connected with the Corner Strapped of the frame；The circle diameter is the frame catercorner length
60%.
Make including being cast in steel reinforcement cage 6, internal lining pipe 7 and fixing piece 1 on the cast-in-situ reinforced concrete hollow borehole class basis
With the concrete 3 of section.
Its of the invention construction process is：
Step 1：Borehole；
As shown in figure 5, being positioned according to design drawing to the basis, key dimension is determined, borehole is carried out to basis
Operation is simultaneously levelling to the clear bottom of the borehole.
Step 2：Internal lining pipe and steel reinforcement cage are positioned；
As shown in fig. 6, after the completion of steel reinforcement cage 6 is bound, internal lining pipe 7 be located and fixed in steel reinforcement cage 6 and then whole
Body transfers in the borehole and it is positioned and is fixed.
Step 3：Filler is filled out in the internal lining pipe, and is bound to the internal lining pipe；
As shown in fig. 7, the spoir 8 during by pore-forming is backfilling into internal lining pipe 7, when backfill, should take corresponding measure that soil is avoided to fall
Foundation bottom is fallen on, mass of foundation is influenced, such as is backfilled using funnel.Internal lining pipe 7 binds after the completion of backfill.
Step 4：Fixing piece is positioned；
As shown in figure 8, determining fixing piece direction according to design drawing requirement, fixing piece 1 is positioned.
Step 5：To remaining gap cast concrete in the borehole and vibrate；
As shown in figure 9, concrete 3 should be poured into a mould and vibrated by concrete structure engineering job specfication when pouring into a mould.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Pipe is described in detail the present invention with reference to above-described embodiment, those of ordinary skills in the art should understand that：Still
The specific embodiment of the present invention can be modified or replaced equivalently, and without departing from any of spirit and scope of the invention
Modification or equivalent substitution, should be covered by the scope of the claims of the present invention.
Claims (11)
1. a kind of transmission tower cast-in-situ reinforced concrete hollow borehole class basis, the hollow borehole include diameter and are less than the digging
The fixing piece and internal lining pipe set gradually from top to bottom in the steel reinforcement cage in hole, the steel reinforcement cage, which is characterized in that the internal lining pipe
Upper end is equipped with the open tube for placing filler；In addition to the filler, the gap of the hollow borehole is filled with concrete.
A kind of 2. transmission tower cast-in-situ reinforced concrete hollow borehole class basis as described in claim 1, which is characterized in that institute
The upper end for stating fixing piece is basseted, and its part basseted is equipped with fixed connector, and lower end, which is equipped with, laterally to be connected
It is connected to the anchor disk of institute's fixing piece.
A kind of 3. transmission tower cast-in-situ reinforced concrete hollow borehole class basis as claimed in claim 2, which is characterized in that institute
The number for stating fixing piece is at least 4.
A kind of 4. transmission tower cast-in-situ reinforced concrete hollow borehole class basis as described in claim 1, which is characterized in that institute
The composition proportion for stating concrete is as follows：
General 653-732 kilograms of 42.5 cement of silicon；SiO2More than 85%, 0.31 μm of average grain diameter；Admixture 189-235kg, maximum grain
Footpath is 0.5 μm；Quartz sand 1125-1310kg, grain size 0.16-1.25mm；Additive 35-70kg；Water 110-145kg.
5. a kind of transmission tower rock foundation cast-in-situ reinforced concrete hollow borehole class basis as described in claim 1, special
Sign is that the filler is spoir when digging the borehole.
A kind of 6. transmission tower cast-in-situ reinforced concrete hollow borehole class basis as described in claim 1, which is characterized in that institute
It states angular pole and 4 piece horizontal side rods of the transmission tower including being erect by 4 and surrounds a square-shaped frame, diameter of Spherical Volume is equipped in the frame
Energy consumer, the diameter of Spherical Volume energy consumer are mutually perpendicular to intersect and be formed by the annulus that two bar steel plate curlings form, the centre of sphere
Place horizontal plane is symmetrical arranged 4 T-shaped connectors being connected with the horizontal side rod with annulus intersection；The T-shaped connection
Part is connected with the Corner Strapped of the frame；
The circle diameter is the 60% of the frame catercorner length；
The angular pole is by the connector or is fixedly welded on the fixing piece.
A kind of 7. construction process on transmission tower cast-in-situ reinforced concrete hollow borehole class basis, which is characterized in that the flow bag
Include following steps：
Borehole；
Internal lining pipe and steel reinforcement cage are positioned；
Filler is filled out in the internal lining pipe, and is bound to the internal lining pipe；
Fixing piece is positioned；
To remaining gap cast concrete in the borehole and vibrate.
8. a kind of construction process on transmission tower cast-in-situ reinforced concrete hollow borehole class basis as claimed in claim 7,
It is characterized in that, the borehole includes：According to design drawing to the foundation location, the key dimension is determined, borehole and to institute
It is levelling to state the bottom hole portion clear bottom of progress.
9. a kind of construction process on transmission tower cast-in-situ reinforced concrete hollow borehole class basis as claimed in claim 7,
It is characterized in that, it is described that internal lining pipe and steel reinforcement cage positioning are included after the completion of the steel reinforcement cage binds, to determine the internal lining pipe
Position is simultaneously fixed in the steel reinforcement cage, then whole to transfer in the borehole and the steel reinforcement cage is positioned and fixed.
10. a kind of construction process on transmission tower cast-in-situ reinforced concrete hollow borehole class basis as claimed in claim 7,
It is characterized in that, it is described filler is filled out into the internal lining pipe to include, the filler is filled to the liner using funnel
Pipe.
11. a kind of construction process on transmission tower cast-in-situ reinforced concrete hollow borehole class basis as claimed in claim 7,
It is characterized in that, it is described that fixing piece positioning is included：The fixing piece direction is determined according to design drawing requirement, and is made using anchor disk
The fixing piece positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711238251.3A CN108104150A (en) | 2017-11-30 | 2017-11-30 | Transmission tower cast-in-situ reinforced concrete hollow borehole class basis and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711238251.3A CN108104150A (en) | 2017-11-30 | 2017-11-30 | Transmission tower cast-in-situ reinforced concrete hollow borehole class basis and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108104150A true CN108104150A (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711238251.3A Pending CN108104150A (en) | 2017-11-30 | 2017-11-30 | Transmission tower cast-in-situ reinforced concrete hollow borehole class basis and its construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106910A (en) * | 2019-06-12 | 2019-08-09 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of major diameter manually digging hole steel-pipe pile for mountain area overhead transmission line |
| CN112796316A (en) * | 2020-12-26 | 2021-05-14 | 北京工业大学 | Manual hole digging annular foundation pile soil core backfill thin steel template system and construction method |
| CN113373966A (en) * | 2021-06-25 | 2021-09-10 | 中国电建集团福建省电力勘测设计院有限公司 | Semi-fabricated pier foundation and construction method thereof |
| CN114150723A (en) * | 2021-10-20 | 2022-03-08 | 中铁十六局集团电气化工程有限公司 | Rod pit backfilling device for electric power engineering |
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|---|---|---|---|---|
| JP2004285721A (en) * | 2003-03-24 | 2004-10-14 | Tokyo Electric Power Co Inc:The | Power transmission steel tower foundation using small anchor material |
| CN101446088A (en) * | 2008-11-11 | 2009-06-03 | 中国电力科学研究院 | Construction method for pole and tower foundation in Gobi Desert gravelly soil area |
| CN104929147A (en) * | 2015-06-25 | 2015-09-23 | 中国电力工程顾问集团中南电力设计院有限公司 | Hollow hole-digging foundation with major diameter and manufacture method thereof |
| CN105003116A (en) * | 2015-06-09 | 2015-10-28 | 广东电网有限责任公司电力科学研究院 | Overhead power transmission tower with high integral wind-resistant performance |
| CN106759444A (en) * | 2017-02-22 | 2017-05-31 | 宁夏回族自治区电力设计院 | One kind draws digging formula hyollow foundation |
-
2017
- 2017-11-30 CN CN201711238251.3A patent/CN108104150A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004285721A (en) * | 2003-03-24 | 2004-10-14 | Tokyo Electric Power Co Inc:The | Power transmission steel tower foundation using small anchor material |
| CN101446088A (en) * | 2008-11-11 | 2009-06-03 | 中国电力科学研究院 | Construction method for pole and tower foundation in Gobi Desert gravelly soil area |
| CN105003116A (en) * | 2015-06-09 | 2015-10-28 | 广东电网有限责任公司电力科学研究院 | Overhead power transmission tower with high integral wind-resistant performance |
| CN104929147A (en) * | 2015-06-25 | 2015-09-23 | 中国电力工程顾问集团中南电力设计院有限公司 | Hollow hole-digging foundation with major diameter and manufacture method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106910A (en) * | 2019-06-12 | 2019-08-09 | 中国电力工程顾问集团西南电力设计院有限公司 | A kind of major diameter manually digging hole steel-pipe pile for mountain area overhead transmission line |
| CN112796316A (en) * | 2020-12-26 | 2021-05-14 | 北京工业大学 | Manual hole digging annular foundation pile soil core backfill thin steel template system and construction method |
| CN112796316B (en) * | 2020-12-26 | 2022-07-22 | 北京工业大学 | Manual hole digging annular foundation pile soil core backfill thin steel template system and construction method |
| CN113373966A (en) * | 2021-06-25 | 2021-09-10 | 中国电建集团福建省电力勘测设计院有限公司 | Semi-fabricated pier foundation and construction method thereof |
| CN114150723A (en) * | 2021-10-20 | 2022-03-08 | 中铁十六局集团电气化工程有限公司 | Rod pit backfilling device for electric power engineering |
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