CN206859235U - For the edge slope structure after the precast lattice beam of slope reinforcement and reinforcing - Google Patents

For the edge slope structure after the precast lattice beam of slope reinforcement and reinforcing Download PDF

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Publication number
CN206859235U
CN206859235U CN201720424356.7U CN201720424356U CN206859235U CN 206859235 U CN206859235 U CN 206859235U CN 201720424356 U CN201720424356 U CN 201720424356U CN 206859235 U CN206859235 U CN 206859235U
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CN
China
Prior art keywords
unit
slope
anchor
crossbeam
groove
Prior art date
Application number
CN201720424356.7U
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Chinese (zh)
Inventor
张爱军
刘声向
李会超
何堃
王传智
郑其溢
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深圳市路桥建设集团有限公司
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Priority to CN201720424356.7U priority Critical patent/CN206859235U/en
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Publication of CN206859235U publication Critical patent/CN206859235U/en

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Abstract

The utility model provides a kind of precast lattice beam and its edge slope structure for slope reinforcement, including some prefabricated cross beam body units are arranged in arrays is formed by connecting;Each cross beam body unit is crossbeam and the intersecting reinforced concrete structure formed of longeron, and anchor head is offered at the central crossbar of cross beam body unit;Institute's anchor head includes concrete groove and is positioned over the backing plate of groove upper surface, and the anchor hole penetrated for anchor pole is opened up on groove and backing plate;L-type hook portion reversely with each other is extended at the crossbeam both ends and longeron both ends of cross beam body unit respectively;The crossbeam of each cross beam body unit and the crossbeam of adjacent cross beam body unit, longeron and the mutually mounting respectively of the L-type hook portion on the longeron of adjacent cross beam body unit, form the precast lattice beam that multiple " well " fonts are put together.The utility model has the characteristics of reducing site operation step, shortening construction period, realize standardized management production, ensure quality, be economic and environment-friendly.

Description

For the edge slope structure after the precast lattice beam of slope reinforcement and reinforcing
Technical field
Slope reinforcement, the engineering field of restoration of the ecosystem are the utility model is related to, is used for slope reinforcement more particularly, to one kind Precast lattice beam and reinforcing after edge slope structure.
Background technology
China is the country on more mountains, and plateau, hills and mountain region account for China's land area about 70%, can all occur every year Substantial amounts of landslide, avalanche and mud-stone flow disaster.Furthermore be frequently run onto in civil engineering during smooth location massif heavy excavation, Situations such as slope, is, it is necessary to cut periphery massif, and cutting operation can destroy original balance.In order to ensure side slope and its The safety of environment, it is necessary to which side slope takes supporting, reinforcing and safeguard procedures.Side slope anchor pole (rope) lattice reinforcement technique has arrangement Flexibly, lattice is various informative, section is easy to adjust, with it is domatic it is closely connected, the remarkable advantage such as can make use of momentum with slope, be in slope reinforcement often A kind of method.
When in the prior art, using anchor pole (rope) lattice girder reinforcing side slope, the mode of construction of its concrete lattice beam is usual It is by the way of cast in situs, its shortcoming is:(1) when cast-in-place lattice girder makes, due to side slope grooving, template processing, reinforcing bar The processes such as colligation, concreting, maintenance are more, and work progress entirety mechanization degree is low, causes required construction period It is partially long;(2) cast in situs process is more, and influence factor is more so that the quality of cast-in-place concrete lattice girder cannot ensure;(3) The outer anchor structures such as the tensioning palpus of prestressed anchor (rope) could be carried out after reaching design strength, and the integral construction cycle is usually due to outer The maintenance of anchor structure thing and seriously delay;(4) the cast-in-place armored concrete lattice girder of tradition is running into the larger feelings of anchorage cable anchoring power During condition, by drawing crack stiffness of structural member may be caused to decline in span centre position, influence overall stability.
Utility model content
After the technical problems to be solved in the utility model is to provide a kind of precast lattice beam for slope reinforcement and reinforcing Edge slope structure, have and reduce site operation step, shorten construction period, realize standardized management production, ensure quality, economy The characteristics of environmentally friendly.
In order to solve the above-mentioned technical problem, the utility model provides a kind of precast lattice beam for slope reinforcement, including Some prefabricated cross beam body units are arranged in arrays to be formed by connecting;Each cross beam body unit is crossbeam and indulged Beam intersects the reinforced concrete structure formed, and anchor head is offered at the central crossbar of the cross beam body unit;The anchor Head includes concrete groove and is positioned over the backing plate of groove upper surface, opens up on the groove and backing plate and is penetrated for anchor pole Anchor hole;
L-type hook reversely with each other is extended at the crossbeam both ends and longeron both ends of the cross beam body unit respectively Portion;The crossbeam of each cross beam body unit and the crossbeam of adjacent cross beam body unit, longeron and adjacent cross L-type hook portion mutually mounting respectively on the longeron of type beam body unit, forms the precast lattice beam that multiple " well " fonts are put together.
It is preferred that the crossbeam of the cross beam body unit and the longitudinal cross-section of longeron are rectangles or trapezoidal.
It is preferred that the backing plate is steel backing plate.
It is preferred that the concrete strength of the cross beam body unit is not less than C25;The rail inner reinforcing bar Size be not less than Ф 14;The size of reinforcing bar is not less than Ф 6 inside the crossbeam.
It is preferred that prefabricated cross beam body is prestressed concrete member or non-prestressed component.
It is preferred that the cross beam body is prestressed component, the concrete strength of the cross beam body is not Less than C40.
The utility model also provides a kind of edge slope structure reinforced using precast lattice beam, by some prefabricated cross beam bodies The precast lattice beam that unit mutually mounts formation is placed parallel to side slope, anchor hole and side slope on each cross beam body unit On the side slope anchor hole that opens up align, anchor pole sequentially passes through anchor hole on the groove and backing plate of cross beam body unit, is inserted in institute In the duct for stating side slope anchor hole;Slurry is poured in the duct of the side slope anchor hole to be blocked;Anchor pole positioned at backing plate top Use nut check;Closure protection is carried out to the exposed parts of groove, anchor pole and nut.
It is preferred that filling the closure of C25 concrete to the exposed parts of groove, anchor pole and nut, or add steel Cover protection, or smear anti-corrosion grease.
The edge slope structure after a kind of precast lattice beam for slope reinforcement and reinforcing is the utility model is related to, its advantage exists In:(1) precast lattice beam is mutually spliced by some prefabricated cross beam body units, and cross beam body unit makes more Easily adjusted when lighter and installation is installed simply,;(2) cross beam body end is designed as L-type hook portion, assembles lattice girder Shi Gengjia is convenient, mutual buckle makes structure more firm;(3) precast lattice beam can be prestressed concrete lattice girder, can improve The section performance of beam, can bear bigger anchor force, solve the cast-in-place armored concrete lattice girder of tradition and running into anchor cable During the larger situation of anchor force, the defects of by drawing crack stiffness of structural member may being caused to decline in span centre position;Prefabricated prestressing force mixes The thickness of beam body can also be reduced or reduce steel bar stress by coagulating native lattice girder, stock utilization be improved, so as to more economical.
During precast lattice beam is prefabricated in the factory, it is possible to achieve standardized management, production, make precast lattice beam stress and Optimum state can be reached in moulding, ensure that the quality of precast lattice beam.
The cross beam body unit of critical piece of precast lattice beam is to be completed in advance in factory, only need to be in side slope anchor Precast lattice beam is transported to side slope scene after the completion of bar construction and carries out lifting anchoring, eliminating in conventional method needs in side slope Fluting, formwork, assembling reinforcement, the process such as pour, conserve, being stripped, detecting, largely shortening construction period, save Cost;
Precast lattice beam of the present utility model is spliced by several prefabricated mutual buckles of cross-bar body phase, compared to Prior art is for the construction technology of the lattice girder of domatic cast in situs, and scene only needs lifting, and easy construction is efficient, skill Art requires low;
It need not be needed when being installed using precast lattice beam in domatic grooving, during compared to cast in situs in Slope dough figurine To make lattice girder be embedded in domatic certain depth, the utility model is more time saving and energy saving for work grooving.
Brief description of the drawings
Fig. 1 is the precast lattice beam schematic diagram that the utility model is used for slope reinforcement;
Fig. 2 is the schematic diagram of the cross beam body of the utility model;
Fig. 3 is the A portions close-up schematic view of the cross beam body of the utility model;
Fig. 4 is the cross beam body B-B longitudinal sectional drawings of the utility model;
Fig. 5 is the horizontal mounting schematic diagram of the cross beam body of the utility model;
Fig. 6 is the slope reinforcement schematic diagram of the cross beam body of the utility model.
Reference is as follows:
The cross beam body units of 1-, 2- precast lattice beams, 3- anchor heads, 11- crossbeams, 12- longerons, 13-L types hook portion, 31- grooves, 32- backing plates, 33- anchor holes, 34- anchor poles, 131- grooves, 132- hook portions, 4- side slopes, 41- side slopes anchor hole, 5- slurries Material, the closure of 6- nuts, 7- concrete.
Embodiment
As shown in figures 1 to 6, it the utility model is related to a kind of precast lattice beam for slope reinforcement, including it is prefabricated a plurality of By the intersecting cross beam body unit 1 forming, reinforced concrete structure of crossbeam 11 and longeron 12, the cross beam body unit 1 concrete strength is not less than C25;The size of the inside reinforcing bar of longeron 12 is not less than Ф 14;The inside reinforcing bar of crossbeam 11 Size be not less than Ф 6.As shown in Fig. 2 offer anchor head 3 at the central crossbar of the cross beam body unit 1;The anchor Head 3 includes concrete groove 31 and is positioned over the backing plate 32 of groove surfaces, and anchor hole 33 is opened up on groove 31 and backing plate 32, Penetrated during installation for anchor pole 34.The both ends of crossbeam 11 and the both ends of longeron 12 of the cross beam body unit 1 are extended respectively Reciprocal L-type hook portion 13, the both ends hook of crossbeam 11 is reversely with each other, and longeron both ends hook is reversely with each other, its groove 131 Width is not less than the width of hook portion 132.Wherein, as shown in figure 3, groove 31 is rectangular, the high inner edge in outside is low, and backing plate 32 is steel Backing plate processed, the lifting surface area of anchor pole is increased during installation, plays pressure-bearing, for protecting the concrete structure of precast lattice beam to exist It will not be damaged during anchor pole tensioning.
As shown in Figure 1,5, the every four cross beam body units 1 mutually splice back wall into interior octagonal aperture;Each institute State the crossbeam of cross beam body unit 1 and the adjacent cross crossbeam of beam body unit 1 mutually mount, longeron with it is adjacent cross L-type hook portion 13 on the longeron of beam body unit 1 mutually mounts, and forms multiple " well " fonts and arranges, several " well " font splits, i.e., Form the precast lattice beam 2 for slope reinforcement.The L-type hook portion 13 of the present embodiment makes the splicing between cross beam body unit 1 Fixation is eased, also enhances the overall steadiness of precast lattice beam 2.
Preferably, the crossbeam 11 of cross beam body unit 1 and the longitudinal cross-section of longeron 12 are rectangles or trapezoidal.Such as Fig. 4 institutes Show, the longitudinal direction height of cross beam body unit 1 tapers into from centre to both ends, to improve the bearing capacity of anchor head.
The prefabricated cross beam body unit 1 of the utility model can be prestressed concrete member or non-prestressed component. When cross beam body unit 1 is prestressed component, the concrete strength of the cross beam body unit 1 is not less than C40.
The preparation method that the utility model is used for the prefabricated cross beam body of slope reinforcement, comprises the following steps:
Step 1, the mould processing of prefabricated cross beam body unit 1;
In factory, according to manufacturing and designing the mould that produces pre-cast concrete concrete;Make and install by design drawing, be made There is the mould of the cross beam body of L-type hook portion 13 end;Crossbeam, longeron intersection in mould reserve groove 31, can be with It is to form above-mentioned groove using an abaculus;The duct of anchor hole 33 is reserved at the position that anchor pole 34 is penetrated on mould, can use One abaculus forms above-mentioned anchor hole duct;
Mould should be assembled and disassembled manually, each position size be carried out after installation to examine Check adjustment, assembled error should reach design And code requirement.
Step 2, in precasting yard according to design banding steel cage;
Bar types, diameter, size, quantity are first checked during Steel Reinforcing Bar Material, cutting length is calculated, is then blocked, steel Muscle takes a platform when bending on bender;Reinforcing bar after bending should be listed after meeting the requirements on inspection and deposit in clean and tidy field In ground, prevent the different reinforcing bar of specifications and models from mixing heap and leaving about.
Bar spacing line is arranged on base, to control cloth muscle size, the cage bar and horizontal stroke in colligation longeron 12 again afterwards Stirrup in beam 11, form the steel reinforcement cage of cross beam body unit.
Step 3, concreting;
In precasting yard, the installation form on fixed base, and it is put into the reinforcing bar of the good prefabricated cross beam body unit 1 of colligation Cage;
Using intensity C25 concrete, before pouring, the seam of the cross mould of beam body unit 1, stay-bolt, mould are checked Plate connecting bolt and footing chock, the branch of mould are stood solid and reliable;When pouring, the blanking of uniformly continuous ground;At the intensive place of reinforcing bar, make With plug-in type vibrating rod to aid in blanking;During filling concrete, formwork reinforcement situation is checked at any time, should be timely at spillage Blocked.
Step 4, concrete curing;
The concrete to have vibrated is moved into health area, the cross beam body of concrete is conserved, by prefabrication type beam body Lid sets cover, forbids the material covering prefabricated component easily to be decolourized using water breakthroughs such as straw bag classes, to prevent polluting its outward appearance.
Timing is to sprinkling water on cover, and watering number is using the surface moisture of cross beam body to spend;Curing time is no less than 7 My god, the form removal after concrete reaches design strength and modulus of elasticity.
Step 5, pile storage;
After prefabricated cross beam body maintenance reaches design strength, it is transported to pile area from maintenance area and carries out pile, storage is treated With;Handled with care in transhipment journey, forbid damaged member, prefabricated components stacking height is no more than 2 meters.
Step 6, the steel for being provided with the anchor hole 33 passed through for anchor pole is placed in the groove 31 of the cross beam body unit 1 Backing plate 32 processed.
The utility model also provides a kind of edge slope structure reinforced using precast lattice beam, as shown in fig. 6, by some prefabricated Cross beam body unit 1 precast lattice beam 2 that mutually mounting is formed is placed parallel to side slope 4, each cross beam body list Anchor hole 33 aligns with the side slope anchor hole 41 opened up in side slope 4 in member 1, and anchor pole 34 sequentially passes through the recessed of cross beam body unit 1 Anchor hole 33 on groove 31 and backing plate 32, it is plugged in the duct of side slope anchor hole 41;Slurry 5 has been poured into the duct of side slope anchor hole 41 Blocked;Anchor pole 34 positioned at the top of backing plate 32 is locked using nut 6;To the exposed parts of groove 31, anchor pole 34 and nut 6 Carry out closure protection.Preferably, C25 concrete closure 7 is filled to the exposed parts of groove 31, anchor pole 34 and nut 6, or added If steel cage is protected, or smears anti-corrosion grease.
The utility model uses the construction method of precast lattice beam reinforcing side slope, comprises the following steps:
Step 1, the preparation before reinforcing;
(1) side slope surface 4 to be reinforced sets up scaffold, removes domatic and rock slag, surface dust or the crag of side slope bottom, dabbing Smooth scar, prevents phenomenon of slipping;
(2) side slope surface 4 to be reinforced is repaired, if domatic too high, is cut with pneumatic pick;If domatic too low, with slurry Build the embedding benefit of slabstone;If meeting compared with large fracture, grouting or jointing processing can be used, so that side slope surface is straight.
Step 2, carry out domatic anchor bolt construction;
(1) carry out the measuring of side slope anchor hole 41 on domatic and mark, the deviations of side slope anchor hole 41 are not more than 20mm, its The degree of skewness at hole position inclination angle is not more than 5%;
(2) side slope anchor hole 41 is drilled with using mark of the rig on side slope surface 4, drilling machine is lifted with three-legged support To stablizing on smooth bamboo springboard, fixed rig, and strict conscientiously progress seat in the plane tune are accurately installed according to the hole position of domatic measuring It is whole, it is ensured that anchor hole drill hole of drilling machine inclination angle and direction meet design and code requirement, drilling depth should not more than Soil Anchor Design length Less than 0.5m.
(3) after the completion of drilling, water, scum silica frost and dust in high pressure air pressure gun cleaning hole and at aperture, borehole cleaning order can be used It is from top to bottom;After the completion of borehole cleaning, aperture should temporarily be blocked, avoid chip debris from entering in side slope anchor hole 41.
Step 3, it is implanted into anchor pole 34;
Anchor pole 34 uses HRB335 level spiralsReinforcing bar does locating support and is made.First with probe inspection before rockbolt installation Whether intact side slope anchor hole 41 is looked into, if thering is collapse hole, chip off-falling to clear up or handle in advance;Anchor pole 34 must not rotate when entering hole, anchor pole 34 Enter firmly uniform during hole.
Step 4, the slip casting into side slope anchor hole;
Using grouting pump, the slurry 5 that material is cement mortar is poured into side slope anchor hole;Cement mortar slurry 5 uses P.0.42.5R cement, the ratio of mud are 0.45~0.5, and the intensity of cement mortar slurry 5 is more than 25MPa.
Step 5, hoisting prefabricated cross beam body;
Leveling is carried out to domatic backing, so that cross beam body unit 1 can be brought into close contact with domatic 4;
The prefabricated cross beam body unit 1 that precasting yard is made is transported to side slope scene with flat car, handling successively is spelled The position that several prefabricated cross beam body units 1 are set to side slope surface 4 is filled, in each prefabricated cross beam body unit 1 The bottom of groove 31 is placed with steel backing plate 32, and anchor pole 34 sequentially passes through the anchor hole 33 on the groove 31 and backing plate 32;Some The crossbeam 11 of the cross beam body unit 1 mutually mounts with crossbeam 11, longeron 12 and the L-type hook portion 13 on longeron 12, is formed The precast lattice beam 2 that multiple " well " fonts are put together.
Step 6, anchor head processing;
Anchor pole 34 positioned at the top of backing plate 32 is locked using nut 6, and nut 6 is tightened.At the position of groove 31, filling C25 is mixed Solidifying grave stifled 7, to prevent backing plate 32, leakage anchor pole 34 and nut 6 from getting rusty;Steel cage protection or preservation fat can also be used Protected.
Step 7, the tensioning and locking of anchor pole 34;
The tensioning fixation technique determined according to live pulling test, classification apply tensile load, and every grade of tensile load is stable Carry out the application of next stage tensile load again afterwards;If after completing 48 hours stress relaxation occurs for the tensioning of anchor pole 34, compensate Tensioning.
Step 8, secondary grouting;
After the tension test of anchor pole 34 is qualified, the note of slurry 5 progress two that material is cement system or synthetic resin system is utilized Secondary injecting treatment.

Claims (8)

1. a kind of precast lattice beam for slope reinforcement, it is characterised in that including some prefabricated cross beam body units (1) it is arranged in arrays to be formed by connecting;Each cross beam body unit (1) is crossbeam (11) and longeron (12) intersects and formed Reinforced concrete structure, anchor head (3) is offered at the central crossbar of the cross beam body unit (1);The anchor head (3) Including concrete groove (31) and the backing plate (32) of groove (31) upper surface is positioned over, on the groove (31) and backing plate (32) Open up the anchor hole (33) penetrated for anchor pole (34);
Crossbeam (11) both ends and longeron (12) both ends of the cross beam body unit (1) are extended reversely with each other respectively L-type hook portion (13);The crossbeam of each cross beam body unit (1) and the crossbeam of adjacent cross beam body unit (1), indulge Beam and the mutually mounting respectively of the L-type hook portion (13) on the longeron of adjacent cross beam body unit (1), form multiple " well " fonts The precast lattice beam (2) being put together.
A kind of 2. precast lattice beam for slope reinforcement according to claim 1, it is characterised in that the cross beam The crossbeam (11) of body unit (1) and the longitudinal cross-section of longeron (12) are rectangles or trapezoidal.
A kind of 3. precast lattice beam for slope reinforcement according to claim 1 or 2, it is characterised in that the backing plate (32) it is steel backing plate.
A kind of 4. precast lattice beam for slope reinforcement according to claim 1 or 2, it is characterised in that the cross The concrete strength of type beam body unit (1) is not less than C25;The size of the internal reinforcing bar of the longeron (12) is not less than Ф 14;It is described The size of the internal reinforcing bar of crossbeam (11) is not less than Ф 6.
A kind of 5. precast lattice beam for slope reinforcement according to claim 1 or 2, it is characterised in that prefabricated cross Type beam body unit (1) is prestressed concrete member or non-prestressed component.
A kind of 6. precast lattice beam for slope reinforcement according to claim 1 or 2, it is characterised in that the cross Type beam body unit (1) is prestressed component, and the concrete strength of the cross beam body unit (1) is not less than C40.
7. the edge slope structure that a kind of 1 precast lattice beam of usage right requirement is reinforced, it is characterised in that by some prefabricated crosses Type beam body unit (1) precast lattice beam (2) that mutually mounting is formed is placed parallel to side slope (4), each cross beam body Anchor hole (33) aligns with the side slope anchor hole (41) opened up in side slope (4) on unit 1, and anchor pole (34) sequentially passes through cross beam body Anchor hole (33) on the groove (31) and backing plate (32) of unit (1), it is inserted in the duct of the side slope anchor hole (41);The side slope Slurry (5) has been poured in the duct of anchor hole (41);Anchor pole (34) positioned at backing plate (32) top is locked using nut (6);It is described The exposed parts of groove (31), anchor pole (34) and nut (6) carry out closure protection.
8. a kind of edge slope structure reinforced using precast lattice beam according to claim 7, it is characterised in that to groove (31), the exposed parts of anchor pole (34) and nut (6) filling C25 concrete closure, or steel cage protection is added, or smear antiseptic oil Fat.
CN201720424356.7U 2017-04-20 2017-04-20 For the edge slope structure after the precast lattice beam of slope reinforcement and reinforcing CN206859235U (en)

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CN201720424356.7U CN206859235U (en) 2017-04-20 2017-04-20 For the edge slope structure after the precast lattice beam of slope reinforcement and reinforcing

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Application Number Priority Date Filing Date Title
CN201720424356.7U CN206859235U (en) 2017-04-20 2017-04-20 For the edge slope structure after the precast lattice beam of slope reinforcement and reinforcing

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108729453A (en) * 2018-05-31 2018-11-02 亓新广 A kind of prefabricated protective slope structure and its construction method
CN109098196A (en) * 2018-10-25 2018-12-28 四川宏洲绿高生态科技有限公司 Protective slope structure
CN109518701A (en) * 2018-12-21 2019-03-26 河海大学 A kind of contrary flexure anchoring ground beam and its construction method for high slope landslide-proofing
CN110761304A (en) * 2019-11-14 2020-02-07 成都城投城建科技有限公司 Assembled anchor rod frame slope protection structure and construction method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108729453A (en) * 2018-05-31 2018-11-02 亓新广 A kind of prefabricated protective slope structure and its construction method
CN108729453B (en) * 2018-05-31 2020-10-09 亓新广 Prefabricated slope protection structure and construction method thereof
CN109098196A (en) * 2018-10-25 2018-12-28 四川宏洲绿高生态科技有限公司 Protective slope structure
CN109518701A (en) * 2018-12-21 2019-03-26 河海大学 A kind of contrary flexure anchoring ground beam and its construction method for high slope landslide-proofing
CN110761304A (en) * 2019-11-14 2020-02-07 成都城投城建科技有限公司 Assembled anchor rod frame slope protection structure and construction method thereof

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