CN207260180U - It is a kind of to protect the constructing device across the underground high voltage cable box culvert of foundation pit - Google Patents

It is a kind of to protect the constructing device across the underground high voltage cable box culvert of foundation pit Download PDF

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Publication number
CN207260180U
CN207260180U CN201721078059.8U CN201721078059U CN207260180U CN 207260180 U CN207260180 U CN 207260180U CN 201721078059 U CN201721078059 U CN 201721078059U CN 207260180 U CN207260180 U CN 207260180U
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China
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steel
box culvert
cable box
square steel
underground
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CN201721078059.8U
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Chinese (zh)
Inventor
张正
朱亮来
吴庆润
程波
金剑
曾毅
丁鹏飞
刘新功
陈红
邓江
陈霄
周祯淳
张建启
陈柯霖
沈水龙
吕海敏
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China Railway 24th Bureau Group Co Ltd
China Railway 24th Bureau Group Co Ltd Rail Transport Branch
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China Railway 24th Bureau Group Co Ltd
China Railway 24th Bureau Group Co Ltd Rail Transport Branch
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Abstract

The utility model provides a kind of constructing device for the underground high voltage cable box culvert protected and cross over foundation pit, including suspension device and protective device, wherein:Suspension device includes i-beam frame, the bar-mat reinforcement being welded by two steel I-beams and some I-steel connecting rods, and between bar-mat reinforcement is arranged at per adjacent two I-steel connecting rod under cable box culvert, and gunite concrete is anchored;Protective device is triangle square steel frame, is welded on the I-steel connecting rod of cable box culvert both sides, for constraining cable box culvert lateral displacement.The utility model is effectively guaranteed the safety of cable box culvert, avoids the relocating work of high-tension cable box culvert, has saved the duration for whole work progress, has improved construction efficiency, save removal charge, has alleviated the influence to society.

Description

It is a kind of to protect the constructing device across the underground high voltage cable box culvert of foundation pit
Technical field
It the utility model is related to the constructing device in a kind of underground structrue engineering technical field, and in particular, to Yi Zhongyong Constructing device of the cast-in-place I-steel protection across the underground high voltage cable box culvert of foundation pit.
Background technology
In recent years, with the quickening of Urbanization in China and the rapid growth of urban population, urban ground traffic system Increasingly congestion, urban track traffic are developed rapidly in each big and medium-sized cities.In the construction of urban track traffic, often Run into the City Buried Pipelines such as underground high voltage cable.In the construction process, part unit in charge of construction constructs by force to work to tight deadlines, and pole has The City Buried Pipelines such as underground high voltage cable may be forced large deformation occur or produce destruction.And the buried pipe such as underground high voltage cable Line is the important infrastructure for ensureing city operations, especially underground high voltage cable, and importance is high, is influenced big.And underground high-voltage Cable usually occurs at track traffic station foundation pit and constructing tunnel passage, it is difficult to avoids, it is necessary to be protected by.At present Safeguard measure to underground high voltage cable is typically to cut to change underground utilities, or by underground high voltage cable temporary shift to widened road Face, treats to then move to original position after the completion of engineering.But not only cost is high for the migration position that changes of underground high voltage cable, time-consuming, delays work Phase, and seriously hinder the normal life of resident nearby.If can be protected in underground high voltage cable original place, guarantor will be greatly simplified Shield measure, reduces the waste of manpower financial capacity, mitigates the influence to society.Therefore, a kind of in-situ conservation of high-tension cable is invented to apply Work technique has highly important engineering application value.
By being found to existing patent retrieval, the existing in-situ conservation construction method to high-tension cable relates generally to cable The suspension protection method of box culvert, Chinese Patent Application No. 201410853049.1, application publication number are 104518473 A of CN, Patent name is:Cable box culvert pipe line suspension protection structure and method, the patent readme are:" present invention is by cable box culvert The top of the stake of both sides is parallel longitudinal to shelve crossbeam, and some top shaped steel are arranged at intervals on the crossbeam, excavates box culvert both sides The soil body, steel plate is laid with box culvert bottom, corresponding top shaped steel sets bottom shaped steel, then connects top and bottom shaped steel with steel wire rope Box culvert is suspended in midair." however, the cable box culvert guard method described in the invention requires have parallel set beside box culvert position That puts shelves crossbeam, the protection of cable box culvert and is not applied on the constructing tunnel passage for not shelving crossbeam, if applying again Then cost is high for two crossbeams of work, and construction is slow.In addition, the technology carries out suspension protection using steel wire rope, it is prolonged under big load Suspention easily makes steel wire rope that creep occur, and since transporting equipment frequently comes in and goes out scene under site operation state, it is careless slightly The steel wire rope of suspension apparatus may be encountered, box culvert is rolled, and steel wire rope is then it is possible that unbalance stress, local to answer Power increases, and is broken, may cause the accident when serious, endangers construction personnel's life, wastes the wealth of society.
Utility model content
For track traffic construct the resettlement problem brought to underground high voltage cable box culvert or in-situ protection the defects of problem, The constructing device across the underground high voltage cable box culvert of foundation pit is protected the utility model proposes a kind of, the device is in rail vehicle Stand, the problem of the protection of underground high voltage cable box culvert that constructing tunnel passage construction is brought in.
The utility model is achieved through the following technical solutions:
It is a kind of to protect the constructing device across the underground high voltage cable box culvert of foundation pit, including suspension device and protective device, The suspension device is used to support cable box culvert gravity, prevents cable box culvert from producing excessive moment of flexure and destroying;The protective device For constraining the lateral displacement of cable box culvert, prevent cable box culvert from producing laterally offset because of wind load, earthquake load;Wherein:
The suspension device includes two steel I-beams, some I-steel connecting rods and bar-mat reinforcement, wherein:Two I-shapeds Girder steel is respectively arranged at the both sides of cable box culvert, some I-steel connecting rod intervals be welded on two steel I-beams with I-beam frame is formed, four direction end sockets difference casting concrete anchoring to the i-beam frame;The bar-mat reinforcement is arranged at Under cable box culvert between per the two neighboring I-steel connecting rod, and anchored by gunite concrete;
The protective device is triangle square steel frame, the triangle square steel frame joined end to end by three square steel be welded and Into the triangle square steel frame is corresponded to and is welded on the I-steel connecting rod of cable box culvert both sides.
Preferably, the distance between two steel I-beams, is divided into two kinds according to distance of the fender post away from cable box culvert:
(1) fender post is less than 40cm apart from cable box culvert, then distance is between two steel I-beams:The width+2 of cable box culvert × (radius+10cm of the cable box culvert to the distance+fender post for going along with sb. to guard him pile center);
(2) fender post is more than 40cm apart from cable box culvert, then distance is between two steel I-beams:The width of cable box culvert+ 20cm。
Preferably, to four direction end sockets of the i-beam frame, i.e., the both ends of two steel I-beams are set up respectively Concrete blinding, then anchored by casting concrete.
It is highly preferred that the I-steel connecting rod is just contacted with cable box culvert bottom, and it is vertical in the i-beam frame four To pad puts steel building block at gap between termination and the concrete blinding.
Preferably, the structure of two steel I-beams is identical, by two I20b I-steel and an I18 I-steel weldering Connect and form, the upper/lower terminal of I18 I-steel described in Yu Yigen is respectively welded in two I20b I-steel, and ensures two institutes The web of I20b I-steel and an I18 I-steel is stated in same perpendicular.
It is highly preferred that the length of the I20b I-steel and the I18 I-steel is:The foundation pit that cable box culvert is crossed over Width+2m.
Preferably, the I-steel connecting rod and the steel I-beam vertical welding, and some I-steel connecting rod interval 120cm Set.
It is highly preferred that the steel I-beam is clamping fixed by I-steel before being welded with the I-steel connecting rod, make work Word girder steel keeps vertical.
It is highly preferred that the length of the I-steel connecting rod is:Vertical range between two steel I-beams.
Preferably, with loop wheel machine adjustment i-beam frame position before four direction end socket casting concretes anchoring of the i-beam frame Put, I-steel connecting rod is just contacted with cable box culvert bottom, and in i-beam frame four between direction end socket and concrete blinding Pad puts steel building block at gap.
Preferably, the bar-mat reinforcement is 12@150mm bar-mat reinforcements.
Preferably, three square steel of the triangle square steel frame are respectively:Horizontal square steel, vertical square steel and bevel edge square steel, Wherein:Together with horizontal square steel is welded in the I-steel connecting rod edge of a wing, vertical square steel lower end is welded in horizontal square steel in connecting rod One end of point, the both ends of bevel edge square steel are respectively welded in the one end of the upper end of vertical square steel and horizontal square steel away from connecting rod midpoint.
It is highly preferred that the welding position of the horizontal square steel on I-steel connecting rod at 2~3cm of cable box culvert to work Word steel link end.
It is highly preferred that the horizontal square steel, vertical square steel and bevel edge square steel are the square steel of length of side 5cm.
It is highly preferred that the length of the horizontal square steel for the one end of I-steel connecting rod away from cable box culvert to apart from cable box Contain the position of 2~3cm on side.
It is highly preferred that the length of the vertical square steel is 2/3rds of cable box culvert height.
The operation principle of the utility model:
The purpose of the suspension device is support section cable box culvert and the common gravity of enclosure device, and prevents electricity There is downward deformation in cable box culvert;In suspension device, bar-mat reinforcement of the cable box culvert directly with I-steel connecting rod and spray anchor contacts, and leads to Cross I-steel connecting rod and bar-mat reinforcement and give both sides steel I-beam its weight transfer, the end anchorage of both sides steel I-beam is in foundation pit side Slope, steel I-beam is again the weight transfer of cable box culvert to slope ground;Spaced I-steel connecting rod and bar-mat reinforcement can have Effect reduces moment of flexure in the middle part of cable box culvert, prevents cable box culvert from occuring bending and deformation;
The purpose of the protective device is various in constraint cable box culvert because of wind load, earthquake load or work progress to be applied The construction equipment lateral displacement that accidentally factor such as touching produces;In protective device, triangle square steel frame leaves crack with cable box culvert Gap, for avoiding causing triangle side's steel frame deformation because initial contact produces prestressing force, reducing triangle square steel frame supporting energy Power, small gap also can help to the displacement of observation cable box culvert, to make counter-measure in time;Triangle square steel frame is in cable Horizontal square steel and oblique square steel are passed to by vertical square steel when lateral displacement stress occurs in box culvert, then pass through horizontal I-steel connecting rod Steel I-beam is passed to, then soil mass of foundation pit is passed to by the i-beam frame termination of anchoring, lateral force is born by soil mass of foundation pit, from And protective cable box culvert lateral displacement.
The utility model compared with prior art, has the advantages that:
The utility model efficiently solve construct passage on be embedded with underground high voltage cable box culvert the problem of, with supporting knot Structure and safeguard structure are effectively guaranteed the safety of cable box culvert, avoid the relocating work of high-tension cable box culvert, entirely to apply Work process has saved the duration, improves construction efficiency, saves removal charge, alleviates the influence to society.
Brief description of the drawings
High-tension cable box culvert constructing device embodiment under cast-in-place steelframe protecting field is made with reference to the following drawings by reading Detailed description, the other features, objects and advantages of the utility model will become more apparent upon:
Fig. 1 is the setting plane of one preferred embodiment of the utility model;
Fig. 2 is the device profile of one preferred embodiment of the utility model;
Fig. 3 is the device side view of one preferred embodiment of the utility model;
In figure:
1 is steel I-beam, and 1-1 is I20b I-steel, and 1-2 is I18 I-steel;2 be I10 I-steel connecting rods;3 be triangle Square steel frame, 3-1 are horizontal square steel, and 3-2 is vertical square steel, and 3-3 is bevel edge square steel;4 be bar-mat reinforcement;5 be cable box culvert;6 be C30 Slightly expanded concrete.
Embodiment
The utility model is described in detail with reference to specific embodiment.Following embodiments will be helpful to this area Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that to ability For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made, These belong to the scope of protection of the utility model.
By taking the light railways of Chongqing as an example, involved cable box culvert is 110KV high-tension cable box culverts, and sectional dimension is 1.7m (width) × 1.5m (height), is 21m across foundation pit length;Come in and go out positioned at tunnel on construction passage, be imbedded in underground about 1m depths Place.The a diameter of 70cm of fender post, the distance away from cable box culvert are 20cm.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of dress with the protection of cast-in-place i-beam frame across foundation pit underground high voltage cable box culvert Put, including suspension device and protective device;
The suspension device includes:Two steel I-beams 1, some I-steel connecting rods 2 and bar-mat reinforcement 4, its connection relation For:A piece steel I-beam 1 is respectively set in the arranged on left and right sides of cable box culvert 5, interval vertical welds I-shaped on two steel I-beams 1 Steel connecting rod 2 is to form a complete i-beam frame;To four direction end sockets of i-beam frame, i.e., the two of two steel I-beams 1 Long 100cm, width 50cm, the concrete-pouring template of high 100cm are set up in end respectively, and casting concrete anchors four of i-beam frame Direction end socket;Bar-mat reinforcement 4 is layed between adjacent I-steel connecting rod 2, and gunite concrete anchors.
Mode is preferably carried out as one, the steel I-beam 1 described in two is by two I20b I-steel 1-1 and one I18 I-steel 1-2 is welded;I20b I-steel 1-1 and I18 the I-steel 1-2 length is 23m;Two guarantors during welding The web of I20b I-steel and an I18 I-steel is held in a vertical plane.
Mode is preferably carried out as one, some I-steel connecting rods 2 are the I10 I-steel connecting rods of long 410cm, And set one every 120cm;Steel I-beam 1 is kept vertical using I-steel geometrical clamp before being welded with steel I-beam 1, weld Ensure that I10 I-steel connecting rod 2 is vertical with steel I-beam 1 when connecing.
In the present embodiment, the I-steel geometrical clamp in the case where casting concrete anchors four termination front dumps of i-beam frame, using hanging Machine lifting i-beam frame and 5 gentle touchdown of cable box culvert, set up the concrete-pouring template of long 100cm wide 50cm high 100cm, then Gap between 1 termination of steel I-beam and concrete blinding bottom is filled with steel building block.
Further, the concrete poured is C30 slightly expanded concretes 6.
Mode is preferably carried out as one, the specification of the bar-mat reinforcement 4 is 12@150mm.
Further, the concrete sprayed on the bar-mat reinforcement 4 is C25 early strength concretes.
As shown in Figure 1 and Figure 2, the maintenance device is triangle square steel frame 3, and triangle square steel frame 3 includes:Level side Steel 3-1, vertical square steel 3-2 and oblique square steel 3-3;Its connection mode is:
The lower end of the vertical square steel 3-2 is welded on the termination of the horizontal square steel 3-1, the oblique square steel 3-3's The upper end of the another end head and the vertical square steel 3-2 in the horizontal square steel 3-1 is respectively welded in both ends.
Mode is preferably carried out as one, horizontal square steel 3-1, the vertical square steel 3-2 of the triangle square steel frame and tiltedly The square steel that the length of side is 5cm is selected to square steel 3-3;
The length of the horizontal square steel 3-1 is 118cm, and the length of the vertical square steel 3-2 is 100cm, described The length of oblique square steel 3-3 is 155cm.
In the present embodiment, the maintenance device passes through weld horizontal square steel 3-1 and I10 I-steel with the suspension device Connecting rod 2 is attached, and ensures that the horizontal square steel 3-1 is apart from cable box culvert 5 close to 5 termination of cable box culvert in welding At 2cm.
All attached drawings of the present embodiment are intended merely to facilitate the technology contents for illustrating the utility model;Form optimal reality It is special to apply the technologies such as the size of correlation and parts used by mode between numeral, the position of parts, parts Sign does not form the restriction to technical solution in itself, and should extend to the whole field that the technical field is covered.
Although the content of the utility model is discussed in detail by above-mentioned preferred embodiment, it is to be understood that It is that the utility model is not limited to above-mentioned particular implementation, those skilled in the art can be within the scope of the claims Various deformations or amendments are made, this has no effect on the substantive content of the utility model.

Claims (10)

1. a kind of protect the constructing device across the underground high voltage cable box culvert of foundation pit, it is characterised in that including suspension device and Protective device, the suspension device are used to support cable box culvert gravity, prevent cable box culvert from producing excessive moment of flexure and destroying;It is described Protective device is used for the lateral displacement for constraining cable box culvert, prevents cable box culvert from producing laterally offset because of wind load, earthquake load; Wherein:
The suspension device includes two steel I-beams, some I-steel connecting rods and bar-mat reinforcement, wherein:Two steel I-beams The both sides of cable box culvert are respectively arranged at, some I-steel connecting rod intervals are welded on two steel I-beams to be formed I-beam frame, four direction end sockets difference casting concrete anchoring to the i-beam frame;The bar-mat reinforcement is arranged at every phase Under cable box culvert between adjacent two I-steel connecting rods, and anchored by gunite concrete;
The protective device is triangle square steel frame, and the triangle square steel frame is joined end to end by three square steel and is welded, institute Triangle square steel frame correspondence is stated to be welded on the I-steel connecting rod of cable box culvert both sides.
2. a kind of constructing device for protecting the underground high voltage cable box culvert for crossing over foundation pit according to claim 1, its feature It is, the distance between two steel I-beams, is divided into two kinds according to distance of the fender post away from cable box culvert:
(1) fender post is less than 40cm apart from cable box culvert, then distance is between two steel I-beams:The width+2 of cable box culvert × (radius+10cm of the cable box culvert to the distance+fender post for going along with sb. to guard him pile center);
(2) fender post is more than 40cm apart from cable box culvert, then distance is between two steel I-beams:Width+the 20cm of cable box culvert.
3. a kind of constructing device for protecting the underground high voltage cable box culvert for crossing over foundation pit according to claim 1, its feature It is, to four direction end sockets of the i-beam frame, i.e., concrete blinding is set up at the both ends of two steel I-beams respectively, Anchored again by casting concrete.
4. a kind of constructing device for protecting the underground high voltage cable box culvert for crossing over foundation pit according to claim 3, its feature Be, the I-steel connecting rod is just contacted with cable box culvert bottom, and described four direction end sockets of i-beam frame with it is described Pad puts steel building block at gap between concrete blinding.
5. a kind of constructing device for protecting the underground high voltage cable box culvert for crossing over foundation pit according to claim 1, its feature It is that there is one or more of feature:
The structure of-two steel I-beams is identical, is welded by two I20b I-steel and an I18 I-steel, and two The upper/lower terminal of I18 I-steel described in Yu Yigen is respectively welded in I20b I-steel described in root, and ensures two I20b I-shapeds The web of steel and an I18 I-steel is in same perpendicular;
The length of-I20b the I-steel and the I18 I-steel is:Foundation pit width+the 2m that cable box culvert is crossed over.
6. a kind of constructing device for protecting the underground high voltage cable box culvert for crossing over foundation pit according to claim 1, its feature It is that there is one or more of feature:
- I-steel the connecting rod and the steel I-beam vertical welding, and some I-steel connecting rod interval 120cm are set;
The length of-some I-steel connecting rods is:Vertical range between two steel I-beams;
- the steel I-beam is clamping fixed by I-steel before being welded with the I-steel connecting rod, steel I-beam is kept perpendicular Directly.
7. a kind of constructing device for protecting the underground high voltage cable box culvert for crossing over foundation pit according to claim 1, its feature It is, the bar-mat reinforcement is 12@150mm bar-mat reinforcements.
8. the construction across the underground high voltage cable box culvert of foundation pit is protected to fill according to claim 1-7 any one of them is a kind of Put, it is characterised in that three square steel of the triangle square steel frame are respectively:Horizontal square steel, vertical square steel and bevel edge square steel, its In:Together with the horizontal square steel is welded in the I-steel connecting rod edge of a wing, the vertical square steel lower end is welded in the level Square steel is respectively welded in the upper end of the vertical square steel and the water close to the one end at connecting rod midpoint, the both ends of the bevel edge square steel Square one end of steel away from connecting rod midpoint.
9. a kind of constructing device for protecting the underground high voltage cable box culvert for crossing over foundation pit according to claim 8, its feature It is, the welding position of the horizontal square steel is:Connect on the I-steel connecting rod at 2~3cm of cable box culvert to I-steel Rod end head.
10. a kind of constructing device for protecting the underground high voltage cable box culvert for crossing over foundation pit according to claim 8, its feature It is that there is one or more of feature:
- horizontal the square steel, the vertical square steel and square steel that the bevel edge square steel is length of side 5cm;
The length of-horizontal the square steel is the one end of I-steel connecting rod away from the cable box culvert to 2 on cable box culvert side The position of~3cm;
The length of-vertical the square steel is 2/3rds of the cable box culvert height.
CN201721078059.8U 2017-08-27 2017-08-27 It is a kind of to protect the constructing device across the underground high voltage cable box culvert of foundation pit Active CN207260180U (en)

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Application Number Priority Date Filing Date Title
CN201721078059.8U CN207260180U (en) 2017-08-27 2017-08-27 It is a kind of to protect the constructing device across the underground high voltage cable box culvert of foundation pit

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