CN108316323A - A kind of precast lattice beam and its construction method - Google Patents
A kind of precast lattice beam and its construction method Download PDFInfo
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- CN108316323A CN108316323A CN201810346202.XA CN201810346202A CN108316323A CN 108316323 A CN108316323 A CN 108316323A CN 201810346202 A CN201810346202 A CN 201810346202A CN 108316323 A CN108316323 A CN 108316323A
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- 238000010276 construction Methods 0.000 title claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000007480 spreading Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 239000004567 concrete Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
Abstract
The invention discloses a kind of precast lattice beam and its construction method, which includes several unit lattice girders, and unit lattice girder intersects latticed beam body with position by crossbeam and longeron, the first groove is arranged at intervals with crossbeam beam；It is arranged at intervals with the second groove being connected with the first texturearunaperpendicular with longeron beam, the first groove mutually agrees with the second groove；The bottom of first groove and the second groove is offered for the hole across anchor pole or anchor cable；After crossbeam is engaged with longeron, the upper and lower surface of unit lattice girder is concordant, and the hole on the first groove and the second groove is located on same axis.Precast lattice beam main part is completed in processing factory, is not take up the space and place of construction site, is advantageously implemented industrialization, reduces construction site number of workers.Crossbeam is locally using cast-in-place, and size-constrained, the shortcomings such as Field adjustment is difficult for overcoming that full precast lattice beam brings, part is cast-in-place to be combined with prefabricated, is conducive to the implementation of precast lattice beam.
Description
Technical field
The present invention relates to building slope, highway and railway slope supporting construction field, especially a kind of precast lattice beam and
Its construction method.
Background technology
China topography Xi Gaodong is low, and mountainous region, plateau and hills account for about the 67% of land area, and landslide, mud can all occur every year
The natural calamities such as rock glacier.With the quickening of pace of construction, be frequently run onto in civil construction massif excavate, slope situations such as.Currently,
In order to ensure the safety constructed and used, it is necessary to which side slope takes supporting measure.Traditional building slope, highway and railway side
When slope uses lattice girder supporting, it is generally used cast-in-situ steel reinforced concrete.
But there are problems using cast-in-place construction：First, after the completion of lattice girder reinforcement installation, the concreting time compared with
It is long, so cause the construction period long；Second, the supporting module on side slope inclined-plane, it is big to install difficulty, low construction efficiency.Concrete
Pour the when of vibrating easily occur beam body vibrate leakiness, run mould and other issues.As slump control is improper or mixed
Solidifying soil vibrates cross to shake, can cause entire cant beam slump, prodigious difficulty of construction is brought to concrete construction.Third, reinforcing bar binding,
Concreting needs a large amount of workers, cannot achieve industrialization.
Invention content
The object of the present invention is to provide a kind of precast lattice beam and its construction methods, to solve the completion of lattice girder reinforcement installation
Afterwards, the concreting time is longer, construction period length, low construction efficiency, difficulty of construction and the problems such as cannot achieve industrialization.
To achieve the above object, the present invention adopts the following technical scheme that：
One aspect of the present invention provides a kind of precast lattice beam, which includes several unit lattice girders, unit lattice
Beam intersects latticed beam body by crossbeam 1 and longeron 3 with position, and the first groove 2 is arranged at intervals with 1 beam of crossbeam；
It is arranged at intervals with the second groove 4 being connected vertical with the first groove 2 with 3 beam of longeron, first groove 2 and the
Two grooves 4 mutually agree with；The bottom of first groove 2 and the second groove 4 is offered for the hole across anchor pole or anchor cable
7；After crossbeam 1 is engaged with longeron 3, the upper and lower surface of unit lattice girder is concordant, the hole position on the first groove 2 and the second groove 4
In on same axis.
Further, at least one and its depth of the first groove 2 are equal to the half of 1 height of crossbeam；Second groove 4 is at least
There are one and its depth be equal to 3 height of longeron half.
Further, 60 ° -120 ° of angle between the crossbeam 1 and longeron 3 of latticed beam body.
Further, 1 two ends of crossbeam have been centrally located third groove 5 and protrusion 6 respectively, and third groove 5 is mutually fitted with protrusion 6
Match.
Further, it is connected by the third groove 5 and protrusion 6 that are arranged on 1 end of crossbeam between unit lattice girder.
Further, it is embedded with reinforcing bar in crossbeam 1.
Further, by the way that the bar connecting in crossbeam 1 is arranged between unit lattice girder.
Further, bar connecting overlaps either welding or mechanical sleeves using binding.
Another aspect of the present invention also provides a kind of construction method of above-mentioned precast lattice beam, is as follows：
Step 1, according to design drawing, crossbeam 1 and longeron 3 are prefabricated in pre-fabricated factory completion；
Step 2 transports prefabricated crossbeam 1 and longeron 3 to construction site；
Prefabricated crossbeam 1 and longeron 3 are deposited in stockyard by step 3；
Step 4 is required according to construction drawing, measures positioning, and side slope is carried out to smooth, construct anchor pole or anchor cable；
Step 5 first hangs vertical longeron 3, after hang crossbeam 1, must ensure anchor pole or anchor cable in 1 cross junction of beam in length and breadth
Hole 7 is aligned with one heart；
Anchor pole or anchor cable are carried out tensioning fixation by step 6；
Crossbeam 1 and longeron 3 are pieced together unit lattice girder by step 7, by adjacent unit lattice girder spreading；
Anchor head is carried out sealing off and covering anchorage processing by step 8 using pea gravel concreten；
Step 9 sets up template, carries out concreting, continues anchor pole or anchor cable carries out tensioning fixation.
Further, step 8, spreading construction are specifically divided into：
The first situation, when 1 two ends of crossbeam have been centrally located third groove 5 and protrusion 6 respectively, adjacent unit lattice girder
Between pass through the third groove 5 that is arranged on 1 end of crossbeam and protrusion 6 connects；
The second situation, cell spreading crossbeam 1 or longeron 3 use cast-in-place joint form, then need to carry out joint area reinforcing bar company
It connects, set up template, and then carry out concreting.
Beneficial effects of the present invention are embodied in：
1, precast lattice beam and its construction method provided by the invention, simple structure is easy to operation, and system easy to control the quality is constructed into
This is low.The groove of crossbeam end and the splicing spreading of protrusion make full precast lattice beam saving of work and time, are more conducive to resource
Rationally utilize.
2, precast lattice beam and its construction method provided by the invention, main part are completed in processing factory, are not take up construction
The space and place at scene are advantageously implemented industrialization, reduce construction site number of workers, improve speed of application.Reduce biography
Unite supporting setting difficulty, improve construction efficiency, no longer occur beam body vibrate leakiness, run mould the problem of.More be not in
Since slump controls improper or concrete vibrating cross to shake, the case where the entire cant beam slump brought.
3, precast lattice beam and its construction method provided by the invention are easy for construction, process is simple, and crossbeam is locally using existing
Pour, size-constrained, dumb, the shortcomings such as Field adjustment is difficult for overcoming that full precast lattice beam brings, part it is cast-in-place with it is pre-
System is combined, and is more conducive to the implementation of precast lattice beam.
Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification
It is clear that understand through the implementation of the invention.The main object of the present invention and further advantage can be by specification, power
Specifically noted scheme is realized and is obtained in sharp claim.
Description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is unit lattice girder construction schematic diagram.
Fig. 2 a, 2b, 2c are that longeron plan view, longeron elevation and longeron are bowed side figure respectively；
Fig. 3 a, 3b, 3c are that 1 crossbeam plan view of embodiment, crossbeam elevation and crossbeam are bowed side figure respectively；
Fig. 4 is 1 precast lattice beam of embodiment splicing installation forming figure；
Fig. 5 a, 5b, 5c are that 2 crossbeam plan view of embodiment, crossbeam elevation and crossbeam are bowed side figure respectively；
Fig. 6 is 2 precast lattice beam bar connecting installation forming figure of embodiment.
Fig. 7 is use state diagram of the precast lattice beam on hillside.
Reference numeral：1- crossbeams, the first grooves of 2-, 3- longerons, the second grooves of 4-, 5- thirds groove, 6- protrusions, the holes 7-
Hole, 8- reinforcing bars.
Specific implementation mode
Embodiment 1, a kind of precast lattice beam provided by the invention, the precast lattice beam include several unit lattice girders,
Unit lattice girder intersects latticed beam body by crossbeam 1 and longeron 3 with position, and the upper and lower surface of unit lattice girder is concordant；Referring to
Shown in Fig. 1.As shown in Figure 3a, 3b and 3c as shown in, be arranged at intervals with the first groove 2 with 1 beam of crossbeam, the first groove 2 there are three and
Its depth is equal to the half of 1 height of crossbeam；1 two ends of crossbeam have been centrally located third groove 5 and protrusion 6, third groove 5 respectively
It is adapted with protrusion 6,5 depth of third groove is identical as the length of protrusion 6.
As shown in Fig. 2 a, 2b, 2c, longeron 3 is 8 concrete component of reinforcing bar, and section is rectangle, is being with 1 infall of crossbeam
Upper spill, 3 beam of longeron are arranged at intervals with the second groove 4 being connected vertical with the first groove 2 with it；First groove 2
Mutually agree with the second groove 4；Second groove 4 there are three and its depth be equal to the half of 3 height of longeron.First groove, 2 He
The bottom of second groove 4 is offered for the hole 7 across anchor pole or anchor cable, and after crossbeam 1 is engaged with longeron 3, first is recessed
Hole on slot 2 and the second groove 4 is located on same axis.Concrete is filled at the connection gap of crossbeam 1 and longeron 3.
As shown in figure 4, being connected by the third groove 5 and protrusion 6 that are arranged on 1 end of crossbeam between adjacent cells lattice girder
It connects.
Concrete construction method is as follows：
Step 1, according to design drawing, crossbeam 1 and longeron 3 are prefabricated in pre-fabricated factory completion；
Step 2 transports prefabricated crossbeam 1 and longeron 3 to construction site；
Prefabricated crossbeam 1 and longeron 3 are deposited in stockyard by step 3；
Step 4 is required according to construction drawing, measures positioning, and side slope is carried out to smooth, construct anchor pole or anchor cable；
Step 5 first hangs vertical longeron 3, after hang crossbeam 1, after crossbeam 1 is engaged with longeron 3, the first groove 2 and the second groove
Hole on 4 is located on same axis, and alignment is concentric；
Anchor pole or anchor cable are carried out tensioning fixation by step 6；
Step 7, the unit lattice girder that crossbeam 1 and longeron 3 are pieced together upper and lower surface is concordant（Refer to Fig. 4）, by adjacent unit
Lattice girder spreading；
Anchor head is carried out sealing off and covering anchorage processing by step 8 using pea gravel concreten；
Step 9 sets up template, carries out concreting, continues anchor pole or anchor cable carries out tensioning fixation.
Embodiment 2, as shown in Fig. 5 a, 5b, 5c, a kind of precast lattice beam, with embodiment 1, the difference is that：Crossbeam 1
Inside it is embedded with reinforcing bar 8.Binding overlap joint either the methods of welding or mechanical sleeves may be used in the connection of reinforcing bar 8.
Together refering to Fig. 6, connected by the reinforcing bar 8 being arranged in crossbeam 1 between unit lattice girder；8 junction of reinforcing bar is also
Concrete is poured.
Concrete construction method is as follows：
Step 1, according to design drawing, crossbeam 1 and longeron 3 are prefabricated in pre-fabricated factory completion；
Step 2 transports prefabricated crossbeam 1 and longeron 3 to construction site；
Prefabricated crossbeam 1 and longeron 3 are deposited in stockyard by step 3；
Step 4 is required according to construction drawing, measures positioning, and side slope is carried out to smooth, construct anchor pole or anchor cable；
Step 5 first hangs vertical longeron 3, after hang crossbeam 1, after crossbeam 1 is engaged with longeron 3, the first groove 2 and the second groove
Hole on 4 is located on same axis, and alignment is concentric；
Anchor pole or anchor cable are carried out tensioning fixation by step 6；
Step 7, the unit lattice girder that crossbeam 1 and longeron 3 are pieced together upper and lower surface is concordant, adjacent unit lattice girder is led to
It crosses reinforcing bar 8 pre-buried in crossbeam 1 and carries out spreading construction；
Anchor head is carried out sealing off and covering anchorage processing by step 8 using pea gravel concreten；
Step 9 sets up template, carries out concreting, continues anchor pole or anchor cable carries out tensioning fixation.
As shown in fig. 7, precast lattice beam size is flexible, facilitates Field adjustment.It can be arranged along the gradient of massif, massif
The local top precast lattice beam of turning is relatively narrow, lower hem width.60 ° of angle-between the crossbeam 1 and longeron 3 of latticed beam body
120 °, to adapt to the rugged state of massif.
A kind of precast lattice beam of present invention offer and its construction method, lattice girder is simple in structure, and operation is flexible, at low cost.
Main part is completed in processing factory, is not take up the space and place of construction site, is advantageously implemented industrialization, reduces construction site
Number of workers improves speed of application.The difficulty for reducing traditional supporting setting, improves construction efficiency, beam body no longer occurs and shake
It smashes leakiness, run the problem of mould.More be not in be brought since slump controls improper or concrete vibrating cross to shake
The case where entire cant beam slump.
The foregoing is merely the preferable specific implementation modes of the present invention, but scope of protection of the present invention is not limited thereto,
The change or replacement that any one skilled in the art is expected in the technical scope disclosed by the present invention should all be contained
Lid is within protection scope of the present invention.
Claims (10)
1. a kind of precast lattice beam, it is characterised in that：The precast lattice beam includes several unit lattice girders, unit lattice girder by
Crossbeam（1）And longeron（3）Latticed beam body, crossbeam are intersected with position（1）It is arranged at intervals with the first groove with beam（2）；
Longeron（3）It is arranged at intervals with and the first groove with beam（2）The second groove being vertically connected（4）, described first is recessed
Slot（2）With the second groove（4）Mutually agree with；First groove（2）With the second groove（4）Bottom offer for across anchor pole
Or the hole of anchor cable（7）；Crossbeam（1）With longeron（3）After occlusion, the upper and lower surface of unit lattice girder is concordant, the first groove（2）
With the second groove（4）On hole be located on same axis.
2. precast lattice beam as described in claim 1, which is characterized in that the first groove（2）At least one and its depth
Equal to crossbeam（1）The half of height；Second groove（4）At least one and its depth are equal to longeron（3）The half of height.
3. precast lattice beam as described in claim 1, which is characterized in that the crossbeam of latticed beam body（1）And longeron（3）It
Between 60 ° -120 ° of angle.
4. precast lattice beam as described in claim 1, which is characterized in that crossbeam（1）Two ends have been centrally located third respectively
Groove（5）And protrusion（6）, third groove（5）And protrusion（6）It is adapted.
5. precast lattice beam as claimed in claim 4, which is characterized in that by being arranged in crossbeam between unit lattice girder（1）
Third groove on end（5）And protrusion（6）Connection.
6. precast lattice beam as described in claim 1, which is characterized in that crossbeam（1）Inside it is embedded with reinforcing bar.
7. precast lattice beam as claimed in claim 6, which is characterized in that by being arranged in crossbeam between unit lattice girder（1）
Interior bar connecting.
8. precast lattice beam as claimed in claim 7, which is characterized in that bar connecting using binding overlap joint either welding or
Mechanical sleeves.
9. a kind of construction method of precast lattice beam as described in any one of claim 1-8, which is characterized in that specific step
It is rapid as follows：
Step 1, according to design drawing, crossbeam（1）And longeron（3）It is completed in pre-fabricated factory prefabricated；
Step 2, by prefabricated crossbeam（1）And longeron（3）It transports to construction site；
Step 3, by prefabricated crossbeam（1）And longeron（3）It is deposited in stockyard；
Step 4 is required according to construction drawing, measures positioning, and side slope is carried out to smooth, construct anchor pole or anchor cable；
Step 5 first hangs vertical longeron（3）, after hang crossbeam（1）, in beam in length and breadth（1）Cross junction must ensure anchor pole or
Person's anchor cable hole（7）Alignment is concentric；
Anchor pole or anchor cable are carried out tensioning fixation by step 6；
Step 7, by crossbeam（1）And longeron（3）Unit lattice girder is pieced together, by adjacent unit lattice girder spreading；
Anchor head is carried out sealing off and covering anchorage processing by step 8 using pea gravel concreten；
Step 9 sets up template, carries out concreting, continues anchor pole or anchor cable carries out tensioning fixation.
10. the construction method of precast lattice beam as claimed in claim 9, which is characterized in that step 8, specific point of spreading construction
For：
The first situation, works as crossbeam（1）Two ends have been centrally located third groove respectively（5）And protrusion（6）When, adjacent unit
By being arranged in crossbeam between lattice girder（1）Third groove on end（5）And protrusion（6）Connection；
The second situation, cell spreading crossbeam（1）Or longeron（3）Using cast-in-place joint form, then need to carry out joint area steel
Muscle connection sets up template, and then carries out concreting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346202.XA CN108316323A (en) | 2018-04-18 | 2018-04-18 | A kind of precast lattice beam and its construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346202.XA CN108316323A (en) | 2018-04-18 | 2018-04-18 | A kind of precast lattice beam and its construction method |
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| Publication Number | Publication Date |
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| CN108316323A true CN108316323A (en) | 2018-07-24 |
Family
ID=62897757
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| CN201810346202.XA Pending CN108316323A (en) | 2018-04-18 | 2018-04-18 | A kind of precast lattice beam and its construction method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024632A (en) * | 2018-09-14 | 2018-12-18 | 南华大学 | A kind of the precast lattice beam structure and assembly monolithic construction method of slope reinforcement |
| CN109487803A (en) * | 2018-11-16 | 2019-03-19 | 西南交通大学 | A kind of assembled skeleton slope protection and its construction method |
| 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 |
| CN109648696A (en) * | 2019-01-02 | 2019-04-19 | 深圳市路桥建设集团有限公司 | Side slope precast lattice beam of reinforcing bar connection and preparation method thereof and construction method |
| CN110055979A (en) * | 2019-04-15 | 2019-07-26 | 北京铁科特种工程技术有限公司 | For the precast prestressed concrete anchor pier of slope reinforcement and production and construction method |
| CN110130367A (en) * | 2019-04-10 | 2019-08-16 | 北京铁科特种工程技术有限公司 | It is a kind of for the precast lattice beam of slope reinforcement and its production and construction method |
| CN110374322A (en) * | 2019-07-23 | 2019-10-25 | 天津洪晟基业建材有限公司 | A kind of assembled waffle beam plate device |
| CN110578334A (en) * | 2019-08-26 | 2019-12-17 | 中国二十冶集团有限公司 | Lattice beam member, lattice beam, and method for laying lattice beam |
| CN110792086A (en) * | 2019-11-12 | 2020-02-14 | 深圳市路桥建设集团有限公司 | Hoisting construction method for prefabricated assembled lattice beam |
| CN110820770A (en) * | 2019-11-11 | 2020-02-21 | 安徽工程大学 | Prefabricated lattice beam and construction method thereof |
| CN111364484A (en) * | 2018-12-26 | 2020-07-03 | 天津师范大学 | Ecological protection plate |
| CN111501792A (en) * | 2020-04-29 | 2020-08-07 | 中铁二院工程集团有限责任公司 | Protective structure for high and steep slope and construction method thereof |
| CN111778925A (en) * | 2020-06-18 | 2020-10-16 | 上海河道建设有限公司 | River course ecological slope protection and construction method thereof |
| CN111926831A (en) * | 2020-08-14 | 2020-11-13 | 中建三局集团有限公司 | Prefabricated assembled slope protection lattice beam structure |
| CN111945748A (en) * | 2020-06-29 | 2020-11-17 | 大连大学 | Green and environment-friendly prefabricated fast-assembling lattice beam and construction method |
| CN112663564A (en) * | 2020-12-14 | 2021-04-16 | 邢台襄禹水利勘测设计有限公司 | Ecological slope protection structure and construction method |
| CN113202111A (en) * | 2021-05-07 | 2021-08-03 | 中交一公局集团有限公司 | Foundation pit slope supporting structure |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024632A (en) * | 2018-09-14 | 2018-12-18 | 南华大学 | A kind of the precast lattice beam structure and assembly monolithic construction method of slope reinforcement |
| CN109487803A (en) * | 2018-11-16 | 2019-03-19 | 西南交通大学 | A kind of assembled skeleton slope protection and its construction method |
| 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 |
| CN111364484A (en) * | 2018-12-26 | 2020-07-03 | 天津师范大学 | Ecological protection plate |
| CN109648696A (en) * | 2019-01-02 | 2019-04-19 | 深圳市路桥建设集团有限公司 | Side slope precast lattice beam of reinforcing bar connection and preparation method thereof and construction method |
| CN110130367A (en) * | 2019-04-10 | 2019-08-16 | 北京铁科特种工程技术有限公司 | It is a kind of for the precast lattice beam of slope reinforcement and its production and construction method |
| CN110055979A (en) * | 2019-04-15 | 2019-07-26 | 北京铁科特种工程技术有限公司 | For the precast prestressed concrete anchor pier of slope reinforcement and production and construction method |
| CN110374322A (en) * | 2019-07-23 | 2019-10-25 | 天津洪晟基业建材有限公司 | A kind of assembled waffle beam plate device |
| CN110578334A (en) * | 2019-08-26 | 2019-12-17 | 中国二十冶集团有限公司 | Lattice beam member, lattice beam, and method for laying lattice beam |
| CN110820770A (en) * | 2019-11-11 | 2020-02-21 | 安徽工程大学 | Prefabricated lattice beam and construction method thereof |
| CN110792086A (en) * | 2019-11-12 | 2020-02-14 | 深圳市路桥建设集团有限公司 | Hoisting construction method for prefabricated assembled lattice beam |
| CN111501792A (en) * | 2020-04-29 | 2020-08-07 | 中铁二院工程集团有限责任公司 | Protective structure for high and steep slope and construction method thereof |
| CN111778925A (en) * | 2020-06-18 | 2020-10-16 | 上海河道建设有限公司 | River course ecological slope protection and construction method thereof |
| CN111778925B (en) * | 2020-06-18 | 2022-02-18 | 上海河道建设有限公司 | River channel ecological slope protection structure and construction method thereof |
| CN111945748A (en) * | 2020-06-29 | 2020-11-17 | 大连大学 | Green and environment-friendly prefabricated fast-assembling lattice beam and construction method |
| CN111926831A (en) * | 2020-08-14 | 2020-11-13 | 中建三局集团有限公司 | Prefabricated assembled slope protection lattice beam structure |
| CN112663564A (en) * | 2020-12-14 | 2021-04-16 | 邢台襄禹水利勘测设计有限公司 | Ecological slope protection structure and construction method |
| CN113202111A (en) * | 2021-05-07 | 2021-08-03 | 中交一公局集团有限公司 | Foundation pit slope supporting structure |
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Application publication date: 20180724 |