CN111852518A - Grid type steel-concrete combined roof pipe structure - Google Patents
Grid type steel-concrete combined roof pipe structure Download PDFInfo
- Publication number
- CN111852518A CN111852518A CN202010398426.2A CN202010398426A CN111852518A CN 111852518 A CN111852518 A CN 111852518A CN 202010398426 A CN202010398426 A CN 202010398426A CN 111852518 A CN111852518 A CN 111852518A
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- shaped
- steel
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- hollow ball
- concrete
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- 238000003466 welding Methods 0.000 claims abstract description 29
- 238000010276 construction Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 8
- 238000009412 basement excavation Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a grid type steel-concrete combined jacking pipe structure which is formed by welding a plurality of steel pipe sections coaxially, wherein each single steel pipe section consists of an outer steel plate, a grid-shaped steel framework and concrete, wherein the outer steel plate is annularly closed, and the inner wall of each steel plate is provided with the grid-shaped steel framework. The steel skeleton and the outer steel plate are prefabricated and assembled in factories, and then are jacked into the excavated tunnel through pipe jacking construction, and concrete is cast in the steel pipe joints to form a steel-concrete combined jacking pipe structure. The structure ensures the structural strength; the method is suitable for the construction of large-section underground structures such as subways and the like, and improves the space utilization efficiency.
Description
Technical Field
The invention relates to a jacking pipe structure, in particular to a grid type steel-concrete combined jacking pipe structure.
Background
In the subway construction, the traditional open cut method is adopted for construction, and projects such as early-stage dynamic removal, traffic guidance and modification, pipeline removal and modification and the like have large workload, high cost and high difficulty, and simultaneously the progress of the project is also influenced. Therefore, in recent years, trenchless technology has been rapidly developed and applied.
Common trenchless laying new pipeline construction techniques include pipe-jacking, shield, guided drilling, and pneumatic spear laying. The pipe-jacking method is a construction technology for carrying out rock-soil drilling and excavation under the condition of no environmental pollution and no excavation of the ground surface, and utilizes a hydraulic oil cylinder to jack a pipe section into a drilling hole formed by a cutting cutter head or excavation to form a lining. It has the following significant advantages: 1) the influence on the ground and surrounding buildings and underground pipelines is small, and the ground traffic is not influenced; 2) the influence of relevant noise, dust and harmful gas on the city is greatly reduced; 3) the road surface land acquisition cost and the building removal cost of the traditional method are saved, and the comprehensive cost is lower; 4) the construction efficiency is high. At present, the application field of the jacking pipes is mostly concentrated on underground spaces such as water supply and drainage projects, street crossing pedestrian ways, subway station access and exit, and the like, and most of the jacking pipes are small-size circular jacking pipes, small in cross section and low in space utilization rate.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a grid type steel-concrete combined jacking pipe structure, so that the jacking pipe has a larger cross section area to meet the use function requirements.
In order to achieve the purpose, the invention adopts the technical scheme that:
A grid type steel-concrete combined roof pipe structure is formed by welding a plurality of sections of steel pipe sections coaxially, wherein each steel pipe section comprises an outer steel plate which is annularly closed, the inner wall of the outer steel plate is fixedly welded with a grid-shaped steel framework, the grid-shaped steel framework comprises a plurality of rows of drum-shaped welding hollow ball nodes which are uniformly fixed at intervals along the circumferential direction of the outer steel plate, each row of drum-shaped welding hollow ball nodes are arranged along the axial direction of the outer steel plate, each row of drum-shaped welding hollow ball nodes comprises a plurality of drum-shaped welding hollow ball nodes which are uniformly arranged at intervals along the axial direction of the outer steel plate, two adjacent drum-shaped welding hollow balls in the same row of drum-shaped welding hollow ball nodes in the front and back direction are fixedly connected through H-shaped steel, two adjacent rows of drum-shaped welding hollow ball nodes in the left and right direction are fixedly connected through H-shaped steel, and a plurality of H-shaped steel for connecting the two adjacent rows of; one end of each H-shaped steel connected with each drum-shaped welded hollow ball joint in a spot welding mode is welded on the side wall of each drum-shaped welded hollow ball joint, the H-shaped steels are arranged along the radial direction of the same cross section of each drum-shaped welded hollow ball joint, the outer edges of the H-shaped steels at the front end and the rear end are fixedly connected through ring-shaped steel bars, concrete is cast in the multi-section steel pipe joints to form a combined jacking pipe, and concrete is filled between the upper flange and the lower flange of each H-shaped steel and a web plate.
Compared with the prior art, the invention has the following beneficial effects:
the concept of a space grid structure is continuously applied to the design of a roof pipe structure, so that the structural strength and the material use efficiency are improved; the method is suitable for the construction of large-section underground structures such as subways and the like, and improves the space utilization rate.
Drawings
FIG. 1 is a schematic structural diagram of a lattice steel-concrete composite roof structure of the present invention;
FIG. 2 is a schematic structural view of the steel skeleton of the grid structure shown in FIG. 1;
FIG. 3 is a schematic view of a node structure of the lattice-shaped steel skeleton shown in FIG. 2;
FIG. 4 is a schematic view of the integral steel-concrete composite structural system after concrete pouring is completed;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6-1 is a schematic structural view of a circular cross-section steel pipe joint;
fig. 6-2 is a schematic structural view of a steel pipe joint with a quasi-rectangular cross section.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The grid type steel-concrete combined roof pipe structure is formed by welding a plurality of steel pipe joints 1 in a coaxial line, and the cross section of each steel pipe joint 1 can be circular or similar to rectangular.
And one end of each H-shaped steel 3 connected with each drum-shaped welded hollow ball node 4 in a welding manner is welded on the side wall of each drum-shaped welded hollow ball node 4, and the H-shaped steels 3 are arranged along the radial direction of the same cross section of each drum-shaped welded hollow ball node 4. The outer edges of the H-shaped steels 3 positioned at the front end and the rear end are fixedly connected through ring-shaped steel bars. H-shaped steel is selected for the rod piece to ensure that the pipe jacking structure has enough circumferential rigidity; the nodes adopt drum-shaped welded hollow ball nodes, so that the rod pieces can be flexibly crossed and the construction is convenient; the outer steel sheet that sets up, inside H shaped steel is as the skeleton, plays the effect of hoop stiffening rib.
After the steel pipe joints are completely penetrated, concrete is cast in situ in the steel pipe joints to form a combined jacking pipe, so that the longitudinal rigidity of the structure is greatly increased.
After the steel pipe is jacked, concrete is sprayed between the steel formworks, and the concrete 6 is filled between the upper flange 5 and the lower flange 5 of each H-shaped steel and the web plate to play a supporting role, so that a steel-concrete combined structure system is formed.
The construction sequence is as follows: the method comprises the following steps of working pit construction, jacking equipment installation and debugging, steel pipe joint connection, jacking iron installation, jacking matched antifriction slurry grouting, temporary support setting, earthwork excavation and transportation, next pipe joint construction section jacking, channel communication, concrete spraying between steel templates, temporary support dismantling and secondary grouting for soil body reinforcement. The concrete construction process is referred to section 6.3 of 'Water supply and drainage pipeline engineering construction and acceptance Standard GB 50268-2008'.
Claims (1)
1. The utility model provides a grid formula steel-concrete combination roof pipe structure which characterized in that: is formed by welding a plurality of sections of steel pipe joints with a coaxial line, the steel pipe joints comprise outer steel plates which are annularly sealed, the inner wall of the outer steel plate is fixedly welded with a grid-shaped steel framework, the grid-shaped steel framework comprises a plurality of rows of drum-shaped welding hollow ball nodes which are uniformly fixed at intervals along the circumferential direction of the outer steel plate, each row of drum-shaped welding hollow ball nodes are arranged along the axial direction of the outer steel plate, each row of drum-shaped welding hollow ball nodes comprises a plurality of drum-shaped welding hollow ball nodes which are uniformly arranged at intervals along the axial direction of the outer steel plate, two adjacent drum-shaped welding hollow balls in the same row of drum-shaped welding hollow ball nodes in the front and back direction are fixedly connected through H-shaped steel, two adjacent rows of drum-shaped welding hollow ball nodes in the left and right direction are fixedly connected through H-shaped steel, and a plurality of H-shaped steel for connecting the two adjacent rows of; one end of each H-shaped steel connected with each drum-shaped welded hollow ball joint in a spot welding mode is welded on the side wall of each drum-shaped welded hollow ball joint, the H-shaped steels are arranged along the radial direction of the same cross section of each drum-shaped welded hollow ball joint, the outer edges of the H-shaped steels at the front end and the rear end are fixedly connected through ring-shaped steel bars, concrete is cast in the multi-section steel pipe joints to form a combined jacking pipe, and concrete is filled between the upper flange and the lower flange of each H-shaped steel and a web plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398426.2A CN111852518A (en) | 2020-05-12 | 2020-05-12 | Grid type steel-concrete combined roof pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398426.2A CN111852518A (en) | 2020-05-12 | 2020-05-12 | Grid type steel-concrete combined roof pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111852518A true CN111852518A (en) | 2020-10-30 |
Family
ID=72985889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398426.2A Pending CN111852518A (en) | 2020-05-12 | 2020-05-12 | Grid type steel-concrete combined roof pipe structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN111852518A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201351310Y (en) * | 2009-01-15 | 2009-11-25 | 西安建筑科技大学 | Concrete special-shaped column equipped with lattice type channel steel framework-steel reinforced concrete beam-frame joint |
| CN102121274A (en) * | 2010-12-28 | 2011-07-13 | 哈尔滨工业大学 | Section steel concrete column-steel girder node |
| CN102392488A (en) * | 2011-10-19 | 2012-03-28 | 东北石油大学 | Vertical reticulated shell steel-concrete combined structure |
| CN103437427A (en) * | 2013-08-28 | 2013-12-11 | 天津大学 | Aluminum alloy space grid structure slab rib node |
| CN103556714A (en) * | 2013-11-25 | 2014-02-05 | 哈尔滨工业大学 | Assembly type space structure C-type node device |
| CN205259360U (en) * | 2015-12-25 | 2016-05-25 | 安徽伟宏钢结构集团股份有限公司 | Hollow bulging node of space grid structural welding |
| CN106759858A (en) * | 2016-12-29 | 2017-05-31 | 山东科技大学 | The connecting node and preparation method of a kind of H profile steel beam and rectangular steel-tube concrete column |
| CN108005116A (en) * | 2017-12-15 | 2018-05-08 | 哈尔滨鸿盛房屋节能体系研发中心 | Assembled cast-in-place concrete structure non-dismantling formwork piping lane |
| CN109469204A (en) * | 2018-10-22 | 2019-03-15 | 中建五局第三建设有限公司 | Assembled steel reinforced concrete combination frame structure and construction method based on composite beam |
| CN110939468A (en) * | 2019-12-27 | 2020-03-31 | 中水北方勘测设计研究有限责任公司 | Assembly type supporting steel pipe piece of open type TBM (tunnel boring machine) and combined supporting method of assembly type supporting steel pipe piece and spray anchor |
| CN212563268U (en) * | 2020-05-12 | 2021-02-19 | 天津大学 | Grid type steel-concrete combined roof pipe structure |
-
2020
- 2020-05-12 CN CN202010398426.2A patent/CN111852518A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201351310Y (en) * | 2009-01-15 | 2009-11-25 | 西安建筑科技大学 | Concrete special-shaped column equipped with lattice type channel steel framework-steel reinforced concrete beam-frame joint |
| CN102121274A (en) * | 2010-12-28 | 2011-07-13 | 哈尔滨工业大学 | Section steel concrete column-steel girder node |
| CN102392488A (en) * | 2011-10-19 | 2012-03-28 | 东北石油大学 | Vertical reticulated shell steel-concrete combined structure |
| CN103437427A (en) * | 2013-08-28 | 2013-12-11 | 天津大学 | Aluminum alloy space grid structure slab rib node |
| CN103556714A (en) * | 2013-11-25 | 2014-02-05 | 哈尔滨工业大学 | Assembly type space structure C-type node device |
| CN205259360U (en) * | 2015-12-25 | 2016-05-25 | 安徽伟宏钢结构集团股份有限公司 | Hollow bulging node of space grid structural welding |
| CN106759858A (en) * | 2016-12-29 | 2017-05-31 | 山东科技大学 | The connecting node and preparation method of a kind of H profile steel beam and rectangular steel-tube concrete column |
| CN108005116A (en) * | 2017-12-15 | 2018-05-08 | 哈尔滨鸿盛房屋节能体系研发中心 | Assembled cast-in-place concrete structure non-dismantling formwork piping lane |
| CN109469204A (en) * | 2018-10-22 | 2019-03-15 | 中建五局第三建设有限公司 | Assembled steel reinforced concrete combination frame structure and construction method based on composite beam |
| CN110939468A (en) * | 2019-12-27 | 2020-03-31 | 中水北方勘测设计研究有限责任公司 | Assembly type supporting steel pipe piece of open type TBM (tunnel boring machine) and combined supporting method of assembly type supporting steel pipe piece and spray anchor |
| CN212563268U (en) * | 2020-05-12 | 2021-02-19 | 天津大学 | Grid type steel-concrete combined roof pipe structure |
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