CN105064428B - Foundation reinforcement and protection method for telegraph pole near deep foundation pit - Google Patents
Foundation reinforcement and protection method for telegraph pole near deep foundation pit Download PDFInfo
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- CN105064428B CN105064428B CN201510430135.6A CN201510430135A CN105064428B CN 105064428 B CN105064428 B CN 105064428B CN 201510430135 A CN201510430135 A CN 201510430135A CN 105064428 B CN105064428 B CN 105064428B
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Abstract
The invention relates to a foundation reinforcement and protection method for a telegraph pole near a deep foundation pit. The foundation reinforcement and protection method comprises the following steps that S1 high-pressure jet grouting piles are driven into the side, near the foundation pit, of the telegraph pole in the direction of an underground wall; S2 a plurality of steel channels are inserted into the high-pressure jet grouting piles; S3 a plurality of steel channels are driven into the two sides of the telegraph pole perpendicular to the direction of the underground wall, and the steel channels on the three sides surround the three sides of the telegraph pole; S4 steel purlins are arranged on the outer sides of the steel channels, and the steel purlins and the steel channels are welded into a whole. The method that the high-pressure jet grouting piles and the steel channels are used for reinforcing the foundation of the telegraph pole is adopted, so that the safety of the telegraph pole and constructors in the excavation process of the foundation pit is guaranteed without the lengthy procedures of removing the telegraph pole of an electric power department; construction progress is accelerated; cost is reduced; in addition, the method is flexible and suitable for various different construction conditions.
Description
Technical field
The present invention relates in work progress existing building protection, a kind of more particularly to electric pole base of neighbouring deep basal pit
Plinth method for reinforcing and protecting.
Background technology
At present, developing rapidly with urban construction, the groups of building in city are rised sheer from level ground, and building is constantly sent out to the underground space
Exhibition, newly-built building is almost respectively provided with the basement of various functions.And when basement excavation pit is constructed, often encounter base
The other situation close to high-voltage line electric pole in hole, if not processing it, during excavation, it may occur that electricity
Line bar even workmen of collapsing such as gets an electric shock at the major accident, and conventional processing mode can only coordinate power department to high-voltage line
Electric pole is moved, but resettlement is less efficient, it is difficult to keep up with the rhythm of Development control area, but also need to pay high compensation for removal
With with cable expense.
Therefore, how to provide a kind of while the progress of foundation pit construction is not affected, additionally it is possible to guarantee Excavation Process
The wire pole base method for reinforcing and protecting of the safe neighbouring deep basal pit of middle electric pole and workmen is those skilled in the art
A technical problem urgently to be resolved hurrily.
The content of the invention
The present invention provides a kind of wire pole base method for reinforcing and protecting of neighbouring deep basal pit, to solve on of the prior art
State technical problem.
To solve above-mentioned technical problem, the present invention provides a kind of wire pole base method for reinforcing and protecting of neighbouring deep basal pit,
Comprise the steps：
S1：In electric pole near the side of foundation ditch, high-pressure rotary jet grouting pile is squeezed in the direction along subterranean wall；
S2：Some channel-section steels are inserted in the high-pressure rotary jet grouting pile；
S3：In the both sides of the electric pole perpendicular to the direction of the subterranean wall, some channel-section steels are squeezed into, the channel-section steel in three faces exists
Three sides of the electric pole are formed to be surrounded；
S4：Steel is set along the outside of the channel-section steel and encloses purlin, the steel is enclosed into purlin and is welded as entirety with the steel tank.
It is preferred that before step S1, first carry out drawing anchor to fix to the electric pole temporarily.
It is preferred that the method for drawing anchor to fix is temporarily：3 steel wire ropes, institute are fixed in the medium position of the electric pole
The other end for stating steel wire rope is fixedly connected respectively with 3 angle steel of insertion underground.
It is preferred that 3 angle steel are uniformly distributed in around the electric pole, and the angle steel inserts the depth of underground
For more than 1.5m.
It is preferred that after the completion of the retaining wall construction on the outside of foundation ditch, the channel-section steel is pulled out.
It is preferred that in step sl, along subterranean wall direction, beaten toward each 1.5m scopes in both sides centered on the electric pole
Entering 7 specifications isHigh-pressure rotary jet grouting pile.
It is preferred that the high-pressure rotary jet grouting pile presses 1:Below 1 insertion digging depth more native than the first skin of insertion.
It is preferred that in step s 2, the channel-section steel inserts the 5.5m of the depth of the high-pressure rotary jet grouting pile, the height for basseting
Spend for 0.5m.
It is preferred that in step S3, some channel-section steels of the electric pole both sides are arranged at, the opening of its two adjacent channel-section steel
It is in opposite direction, and side wall is mutually clamped socket.
It is preferred that the high-pressure rotary jet grouting pile adopts high-pressure rotary-spray drilling machine construction, the channel-section steel to insert using digging machine or manipulator
Enter.
Compared with prior art, the wire pole base method for reinforcing and protecting of a kind of neighbouring deep basal pit that the present invention is provided has
Following advantage：
1st, method of the present invention using strengthening of foundation is carried out to electric pole, it is not necessary to which power department migrates the tediously long of electric pole
Flow process, electric pole reinforcement protection can in the lump be implemented with the soil stabilization stage, be not take up the duration, convenient, construction speed of constructing
It is improved；
2nd, using the method reinforced to wire pole base, it is not necessary to pay the removal charge and cable of costliness to power department
Expense, and high-pressure rotary jet grouting pile workload is few and univalent relatively low, repeats after channel-section steel dismounting and utilizes, and greatlys save engineering cost；
3rd, wire pole base reinforcing process only needs minitype high voltage rotary churning pile machine, digging machine or manipulator, without the need for a large amount of artificial and
Big machinery coordinates, and saves artificial and mechanical engagement expense, in addition, high-pressure rotary jet grouting pile and channel-section steel retaining wall belong to the construction of maturation
Technique, operates ease and degree of safety higher；
4th, closing on the electric pole reinforcing scope and depth of deep basal pit can be adjusted flexibly position, scope according to the change of foundation ditch condition
And length etc., implement flexible, it is adaptable to a variety of Construction Conditions.
Description of the drawings
Fig. 1 is to carry out the schematic diagram of drawing anchor fixation temporarily to the electric pole of neighbouring deep basal pit in the present invention；
Fig. 2 is the construction plan that the wire pole base of neighbouring deep basal pit in the present invention is reinforced；
Fig. 3 is around high-pressure rotary jet grouting pile, the construction plane enlarged diagram of channel-section steel of electric pole in the present invention；
Fig. 4 is the profile that the wire pole base of neighbouring deep basal pit in the present invention is reinforced.
In figure：10- electric poles, 11- steel wire ropes, 12- angle steel, 20- foundation ditches, 21- subterranean walls, 22- retaining walls, 23- first
Support is enclosed purlin, 30- high-pressure rotary jet grouting piles, 40- channel-section steels, 50- steel and encloses purlin.
Specific embodiment
For the technical scheme for stating foregoing invention more in detail, being exemplified below specific embodiment proves that technology is imitated
Really；It is emphasized that these embodiments are used to illustrate the present invention and be not limited to limit the scope of the present invention.
The wire pole base method for reinforcing and protecting of a kind of neighbouring deep basal pit that the present invention is provided, refer to Fig. 2 to Fig. 4, wrap
Include following steps：
S1：In electric pole 10 near the side of foundation ditch 20, along the direction of subterranean wall 21 high-pressure rotary jet grouting pile 30 is squeezed into；
S2：Some channel-section steels 40 are inserted in the high-pressure rotary jet grouting pile 30；
S3：In the both sides of the electric pole 10 perpendicular to the direction of the subterranean wall 21, (this enforcement of some channel-section steels 40 is squeezed into
Per side 5 in example), the channel-section steel 40 in three faces is formed in three sides of the electric pole 10 and surrounded；
S4：Along the channel-section steel 40 outside arrange steel enclose purlin 50, by the steel enclose purlin 50 be welded as with the steel tank 40 it is whole
Body, in the present embodiment, the steel is enclosed purlin 50 and is constituted using the channel-section steel Two bors d's oeuveres of model 14a.
The present invention is consolidated into whole in the side of 10 closing foundation ditch of electric pole 20 using the channel-section steel 40 and high-pressure rotary jet grouting pile 30
Body, to electric pole 10 strengthening of foundation protection is carried out, and causes electric pole 10 to collapse or deform so as to prevent the soil body from caving in, it is ensured that construction
Safety；And need not to power department pay costliness removal charge and cable expense, greatly save construction cost；In addition,
The principle of the invention is simple, easy construction, shortens the duration, and using safety.
It is preferred that asking emphasis to refer to Fig. 1, before step S1, first the electric pole 10 is carried out to draw anchor to fix temporarily, institute
Stating the method for drawing anchor temporarily fixed is：Fix 3 steel wire ropes 11 in the medium position of the electric pole 10, the steel wire rope 11 it is another
One end is fixedly connected respectively with 3 angle steel 12 of insertion underground, using the angle steel 12 of insertion underground by steel wire rope 11 to electric wire
Bar 10 produces pulling force, and then electric pole 10 is fixed temporarily, it is preferred that 3 angle steel 12 are uniformly distributed in the electricity
Around line bar 10, that is, guarantee that 3 steel wire ropes 11 form intersecting angle to the pulling force of electric pole 10, make the side of 3 pulling force
To not in same direction；And depth h1 of the insertion of angle steel 12 underground is more than 1.5m, to provide enough pulling force, is prevented
In the follow-up work progress of high-pressure rotary jet grouting pile 30, the basis of electric pole 10 deforms inclination.
It is preferred that ask emphasis to refer to Fig. 4, and after the completion of the retaining wall 22 in the outside of foundation ditch 20 is constructed, can be by the channel-section steel 40
Pull out, that is to say, that when soil body lateral pressure by the assembly of high-pressure rotary jet grouting pile 30 and channel-section steel 40 be delivered to the first skin earthwork with
Under retaining design；First support is enclosed after the completion of purlin 23 and the construction of retaining wall 22, is passed to the first support and is enclosed purlin 23 and retaining wall
22；After retaining wall 22 reaches predetermined strength, the outer lateral earth pressure of foundation ditch 20 undertakes mainly by retaining wall 22, and the soil body is in stablizes shape
State, can now pull out channel-section steel 40, so far complete the reinforcement protection to the basis of electric pole 10 and operate, and the channel-section steel 40 after dismantling can be again
It is multiple to utilize, further save engineering cost.
It is preferred that asking emphasis referring to figs. 2 and 3 in step sl, along the direction of subterranean wall 21, with the electric pole 10
Centered on squeeze into 7 specifications toward both sides each 1.5m scopes and beHigh-pressure rotary jet grouting pile 30, in other words, 7 high pressure
The total length h2 of rotary churning pile 30 is 3m, a diameter of 0.6m of every high-pressure rotary jet grouting pile 30, two adjacent high-pressure rotary jet grouting piles 30 it
Between distance be 0.4m, while enough support forces are provided, do not result in the waste of material.
It is preferred that asking emphasis to refer to Fig. 4, the high-pressure rotary jet grouting pile 30 presses 1:1 insertion is cut the earth deep than insertion the first skin soil
Degree is following, specifically, due to the present embodiment in, first supports and encloses the digging depth h3 that purlin 23 constructs and be about 3m, according to 1:1 insertion
Than, then the height h4 of high-pressure rotary jet grouting pile 30 is ground down 6m, before the first skin earth excavation, high-pressure rotary jet grouting pile 30 and channel-section steel 40
Electric pole 10 is surrounded to form a stronger soil body retaining structure system of bearing capacity.Every electric pole 10 sets 7 high-pressure rotary-sprays
Stake 30 is reinforced, and the construction requirement of high-pressure rotary jet grouting pile 30 is typically identical with the jet grouting pile construction requirement of soil stabilization, also exists
The soil stabilization stage implements in the lump, is not take up the extra duration, does not interfere with construction speed.
It is preferred that please continue to refer to Fig. 4, in step s 2, the channel-section steel 40 inserts the depth of the high-pressure rotary jet grouting pile 30
The 5.5m of h5, the height h6 for basseting are 0.5m, there is provided while enough support forces, be easy to the later stage to pull out in channel-section steel 40.
It is preferred that asking emphasis to refer to Fig. 3, in step S3, some channel-section steels 40 of the both sides of the electric pole 10, its phase are arranged at
The opening direction of two adjacent channel-section steels 40 conversely, and side wall is mutually clamped socket, that is to say, that two side walls of channel-section steel 40 are distinguished
In the channel-section steel 40 of the adjacent both sides of insertion, so, when enclosing purlin 50 using steel channel-section steel 40 being connected as into overall, can further increase whole
The firmness of individual reinforcement protection structure.
It is preferred that the high-pressure rotary jet grouting pile 30 is constructed using XP-20B or XP-30B minitype high voltages jet drill rig, the groove
The length of steel 40 is 6m, and specification is 32a, and is inserted using digging machine or manipulator, is coordinated without the need for a large amount of artificial and big machineries, section
About artificial and mechanical engagement expense, and high-pressure rotary jet grouting pile 30 and channel-section steel 40 do the construction technology that retaining wall belongs to maturation, operation is simple
Yi Du and degree of safety are greatly improved.
In sum, the wire pole base method for reinforcing and protecting of a kind of neighbouring deep basal pit that the present invention is provided, including it is as follows
Step：S1：In electric pole 10 near the side of foundation ditch, along the direction of subterranean wall 21 high-pressure rotary jet grouting pile 30 is squeezed into；S2：In the height
Pressure rotary-spraying stake 30 is inserted into some channel-section steels 40；S3：In the both sides of the electric pole 10 perpendicular to the direction of the subterranean wall 21, beat
Enter some channel-section steels 40, the channel-section steel 40 in three faces is formed in three sides of the electric pole 10 and surrounded；S4：Outside along the channel-section steel 40 sets
Put steel and enclose purlin 50, the steel is enclosed into purlin 50 and is welded as entirety with the steel tank 40.The present invention is using high-pressure rotary jet grouting pile 30 and channel-section steel
The method that 40 pairs of electric poles 10 carry out strengthening of foundation, it is ensured that the safety of electric pole 10 and workmen in the digging process of foundation ditch 20,
And do not need power department to migrate the tediously long flow process of electric pole 10, so as to accelerate construction speed, save cost, and the method
Flexibility is high, it is adaptable to a variety of Construction Conditions.
Obviously, those skilled in the art can carry out the spirit of various changes and modification without deviating from the present invention to invention
And scope.So, if these modifications of the present invention and modification belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including including these changes and modification.
Claims (9)
1. a kind of wire pole base method for reinforcing and protecting of neighbouring deep basal pit, it is characterised in that comprise the steps：
S1：In electric pole near the side of foundation ditch, high-pressure rotary jet grouting pile is squeezed in the direction along subterranean wall；
S2：Some channel-section steels are inserted in the high-pressure rotary jet grouting pile；
S3：In the both sides of the electric pole perpendicular to the direction of the subterranean wall, some channel-section steels are squeezed into, the channel-section steel in three faces is described
Three sides of electric pole are formed to be surrounded；In step S3, some channel-section steels of the electric pole both sides are arranged at, its two adjacent channel-section steel
Opening direction conversely, and side wall is mutually clamped socket；
S4：Steel is set along the outside of the channel-section steel and encloses purlin, the steel is enclosed into purlin and is welded as entirety with the steel tank.
2. as claimed in claim 1 adjacent to the wire pole base method for reinforcing and protecting of deep basal pit, it is characterised in that in step S1
Before, first carry out drawing anchor to the electric pole to fix temporarily.
3. as claimed in claim 2 adjacent to the wire pole base method for reinforcing and protecting of deep basal pit, it is characterised in that the drawing anchor
Temporarily fixed method is：Fix 3 steel wire ropes in the medium position of the electric pole, the other end of the steel wire rope respectively with insert
3 angle steel for entering underground are fixedly connected.
4. as claimed in claim 3 adjacent to the wire pole base method for reinforcing and protecting of deep basal pit, it is characterised in that described 3
Angle steel is uniformly distributed in around the electric pole, and the depth of angle steel insertion underground is more than 1.5m.
5. as claimed in claim 1 adjacent to the wire pole base method for reinforcing and protecting of deep basal pit, it is characterised in that when outside foundation ditch
After the completion of the retaining wall construction of side, the channel-section steel is pulled out.
6. as claimed in claim 1 adjacent to the wire pole base method for reinforcing and protecting of deep basal pit, it is characterised in that in step S1
In, along subterranean wall direction, it is 7 specifications are squeezed into toward each 1.5m scopes in both sides centered on the electric pole
High-pressure rotary jet grouting pile.
7. as claimed in claim 1 adjacent to the wire pole base method for reinforcing and protecting of deep basal pit, it is characterised in that the high pressure
Rotary churning pile presses 1:Below 1 insertion digging depth more native than the first skin of insertion.
8. as claimed in claim 1 adjacent to the wire pole base method for reinforcing and protecting of deep basal pit, it is characterised in that in step S2
In, the channel-section steel inserts the 5.5m of the depth of the high-pressure rotary jet grouting pile, and the height for basseting is 0.5m.
9. as claimed in claim 1 adjacent to the wire pole base method for reinforcing and protecting of deep basal pit, it is characterised in that the high pressure
Rotary churning pile adopts high-pressure rotary-spray drilling machine construction, the channel-section steel to insert using digging machine or manipulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430135.6A CN105064428B (en) | 2015-07-21 | 2015-07-21 | Foundation reinforcement and protection method for telegraph pole near deep foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510430135.6A CN105064428B (en) | 2015-07-21 | 2015-07-21 | Foundation reinforcement and protection method for telegraph pole near deep foundation pit |
Publications (2)
| Publication Number | Publication Date |
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| CN105064428A CN105064428A (en) | 2015-11-18 |
| CN105064428B true CN105064428B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510430135.6A Active CN105064428B (en) | 2015-07-21 | 2015-07-21 | Foundation reinforcement and protection method for telegraph pole near deep foundation pit |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484270B (en) * | 2015-12-01 | 2017-05-10 | 广州市恒盛建设工程有限公司 | Reinforcement protection construction method of high steep old rubble retaining wall adjacent to deep foundation pit |
| CN109537418B (en) * | 2018-12-10 | 2020-11-24 | 五河县智凯环保科技有限公司 | Method for constructing building support through highway |
| CN110593590B (en) * | 2019-08-15 | 2021-05-18 | 中电建十一局工程有限公司 | In-situ protection method for existing high-voltage line pole in deep foundation pit excavation area |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB319133A (en) * | 1928-09-08 | 1929-09-19 | Arthur Hugh Seabrook | Improvements in or relating to poles, masts and the like for supporting overhead electric wires and for similar purposes |
| GB653223A (en) * | 1948-11-25 | 1951-05-09 | Colcrete Ltd | Improvements in or relating to the reinforcement in situ of tapered tubular poles with concrete or grout |
| CN101487355B (en) * | 2009-02-23 | 2010-07-28 | 廖力锋 | Telegraph pole and its mounting and fixing method |
| CN202347529U (en) * | 2011-09-16 | 2012-07-25 | 中国电力科学研究院 | Metal assembly type tower foundation |
-
2015
- 2015-07-21 CN CN201510430135.6A patent/CN105064428B/en active Active
Non-Patent Citations (2)
| Title |
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| 吴金东.考虑经济效益的基坑围护结构选型研究.《中国优秀硕士学位论文全文数据库》.2009,第1-2页、第8页、第17-18页、第21-22页、第27页. * |
| 道路改建中管道埋设的基槽支护措施;王坚永;《山西建筑》;20080801;第34卷(第22期);第281-282页 * |
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