CN107905817A - The ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section - Google Patents
The ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section Download PDFInfo
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- CN107905817A CN107905817A CN201711247909.7A CN201711247909A CN107905817A CN 107905817 A CN107905817 A CN 107905817A CN 201711247909 A CN201711247909 A CN 201711247909A CN 107905817 A CN107905817 A CN 107905817A
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- pipe canopy
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- steel
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- 239000007787 solid Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- 238000010276 construction Methods 0.000 claims abstract description 34
- 239000011378 shotcrete Substances 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000004888 barrier function Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000007569 slipcasting Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011083 cement mortar Substances 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 229910000712 Boron steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 235000018927 edible plant Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 210000004911 serous fluid Anatomy 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention relates to the ground handling well Shed-pipe Advanced Support pre-add solid system that existing thing is worn under shield section, including working shaft, working shaft bottom is shaft floor, and well bore is combined bolting and shotcrete system；Pipe canopy supporting steel frame is provided with above the shaft floor of working shaft bottom, pipe canopy guide pipe is provided with the top of pipe canopy supporting steel frame and pipe canopy is peripherally set in layer.The present invention, which is directed to, to wear important construction of structures the technical barrier of advance support can not be performed in hole under shield, take full advantage of the reliability that shotcrete bolt construction method performs the advanced pre-reinforcement of convenience, flexibility and steel tube shed of working shaft, it is not only easy for construction, reduce investment outlay, influence of the surface pre reinforced to ground and its periphery construction of structures is also greatly reduced, while enhances the global reliability that shield is passed through safely.
Description
Technical field
The invention belongs to tunnel construction technical field, and in particular to the ground handling well of existing thing is worn under a kind of shield section
Shed-pipe Advanced Support pre-add solid system.
Background technology
21 century is the period that underground engineering develops rapidly, and the especially construction of China's subway engineering in recent years is even more such as fire
Such as the bitter edible plant.Extensive use of the rock tunnel(ling) machine in subway engineering so that under wear some constructions of structures and become safer, but for
Some especially important constructions of structures, if the improper influence for often causing unrepairable of Reinforcement Measures；Shield machine one
As do not possess stratum pre-reinforcement function, and the common method to existing building foundation stabilization is large-scale surface drilling note
Slurry is reinforced, but influences range of grouting and consolidation effect due to the problems such as setting angle and grouting pressure control；Ground at the same time
Slip casting needs large-scale ground to take up an area, and influences surrounding environment, Engineering concordance is difficult.Therefore pacify for Shield
Important construction of structures is passed through entirely, and to construction of structures ground, effectively advanced pre-reinforcement proposes the requirement of higher.
The content of the invention
The object of the present invention is to provide the ground handling well Shed-pipe Advanced Support pre-add solid that existing thing is worn under a kind of shield section
System, can be during shield crossing construction of structures, effectively by ground handling well Shed-pipe Advanced Support pre-reinforcement under complex environment
Limit the foundation settlement of construction of structures.
The technical solution adopted in the present invention is：
The ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section, it is characterised in that：
Including working shaft 1,1 bottom of working shaft is shaft floor 5, and well bore is combined bolting and shotcrete system 4；
The top of shaft floor 5 of 1 bottom of working shaft is provided with pipe canopy supporting steel frame 6, and the top of pipe canopy supporting steel frame 6 is provided with pipe
Canopy guide pipe 7 simultaneously peripherally sets pipe canopy 2 in layer.
1 top exterior walls of working shaft are provided with fore shaft collar tie beam 3.
Pipe canopy 2 is seamless steel pipe, is internally provided with small-sized steel reinforcement cage, and small-sized steel reinforcement cage includes the hoop 13 in center, hoop
13 peripheries are provided with interpolation reinforcing bar 11 and locating support ring 12.
Pipe canopy supporting steel frame 6 is made of crossbeam 9 and perpendicular support 10；
Based on shaft floor 5, head piece is oriented to steel pipe 7 for pipe canopy and provides carrier cross member, head piece and cross member it
Between perpendicular support 10 is set.
Pipe canopy is oriented to 7 one end of steel pipe and is placed on pipe canopy supporting steel frame 6, with 6 head piece of pipe canopy supporting steel frame, 9 welding by both sides
Connect, the other end is squeezed into 1 side wall of working shaft.
Combined bolting and shotcrete system 4 includes advanced anchor tube, steel grating, reinforced mesh and gunite concrete.
The construction method of the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section, its feature exists
In：
Comprise the following steps：
Step 1：Working shaft collar tie beam foundation pit is excavated, performs fore shaft collar tie beam 3；Using reverse construction working shaft 1, vertical shaft base
Hole performs combined bolting and shotcrete system 4 after often excavating 0.5m-1m；Vertical shaft excavation of foundation pit on earth after, perform shaft floor 5；
Step 2：After shaft floor 5 reaches design strength, then set Guan Peng sides and be close to shaft wall and perform pipe canopy supporting steel
Frame 6；6 cross member 9 of pipe canopy supporting steel frame will do necessary connection with shaft floor 5, to ensure that supporting steel frame 6 is stablized；Pipe canopy branch
After support steelframe 6 is installed in place, pipe canopy is equidistantly set into shaft wall along 9 upper limb of head piece and is oriented to steel pipe 7, and steel will be oriented to
Pipe 7 and 9 firm welding of head piece；
Step 3：It is oriented to along pipe canopy after steel pipe 7 drills and sets 2 steel pipe of pipe canopy, according to top construction of structures situation, is put into steel pipe
Enter small-sized steel reinforcement cage to improve 2 overall stiffness of pipe canopy；Into pipe canopy 2, grouting methol fills steel pipe, and reinforces surrounding formations；
Step 4：The timely backfilling working vertical shaft 1 after the completion of performing of pipe canopy 2, it is ensured that the safety of surrounding enviroment during shield crossing.
The present invention has the following advantages：
The present invention excavates working shaft in earth's surface, in well installing pipe canopy supporting steel frame, pipe canopy guide pipe is set, sets pipe canopy simultaneously
Steel reinforcement cage and grouting methol are inserted into steel pipe, forms pipe canopy pre-add solid system, the gunite concrete being related to, steel, cement
It is conventional material that slurry and steel pipe, which set mechanical equipment used etc.,（Equipment）, its corresponding size is general type, easy to add
Work manufactures；And pipe boron steel length of tube, horizontal layout can be adjusted according to tunnel and construction of structures relative space position relation, pipe
Canopy rigidity can be determined according to cement mortar grade, steel reinforcement cage and the steel pipe stiffness by itself information summary of inside filling, pass through advance pipe
The pre-add solid system of canopy, it can be ensured that the safety of surrounding enviroment during shield driven tunnel crossing construction of structures.Active well position can combine
Construction of structures position, ground and subsurface picture to be reinforced flexibly select, and avoid ground road occupying and pipeline to move the unfavorable shadow changed as far as possible
Ring, efficiently solve and the drawbacks of important construction of structures ground pre-reinforcement construction is difficult, effect is poor, scope is small, tool are worn under shield section
There are higher economic benefit and social benefit, have wide practical use in the engineerings such as urban track traffic, railway, highway.
Brief description of the drawings
Fig. 1 is shaft support structure and Guan Peng（Plane）Schematic diagram.
Fig. 2 is shaft support structural profile（Facade）Schematic diagram.
Fig. 3 is pipe canopy schematic cross-sectional view.
In figure, 1- working shafts, 2- pipe canopies, 3- fore shaft collar tie beams, 4- combined bolting and shotcrete systems, 5- shaft floors, 6- pipe canopy branch
Support steelframe, 7- pipe canopy guide pipes, 8- seamless steel pipes, 9- crossbeams, 10- erect support, 11- interpolation reinforcing bars, 12- locating support rings, 13- rings
Hoop.
Embodiment
With reference to embodiment, the present invention will be described in detail.
Ground handling well Shed-pipe Advanced Support pre-add solid system according to the present invention, drills in working shaft combined bolting and shotcrete side wall
Pipe canopy guide pipe is set, and pipe canopy guide pipe and pipe canopy support locating steel frame are welded, tube shed grouting is set along pipe canopy guide pipe
Steel pipe, pipe boron steel pipe is interior to set steel reinforcement cage and grouting methol, forms pipe canopy pre-add solid system, it is ensured that shield driven tunnel crossing construction
Build the safety of surrounding enviroment during thing.
Concrete structure includes working shaft 1, and 1 bottom of working shaft is shaft floor 5, and well bore is combined bolting and shotcrete system 4；Work
The top of shaft floor 5 for making 1 bottom of vertical shaft is provided with pipe canopy supporting steel frame 6, and the top of pipe canopy supporting steel frame 6 is provided with pipe canopy guiding
Pipe 7 simultaneously peripherally sets pipe canopy 2 in layer.Working shaft 1 sets condition for 2 offer level of pipe canopy.Working shaft 1 should be laid in
Surface condition is preferable, position smaller on traffic impact and not influencing construction of structures safety to be protected, and preferably avoids shield section
Surface.Combined bolting and shotcrete system 4 includes advanced anchor tube, steel grating, reinforced mesh and gunite concrete.Shaft floor 5 is generally adopted
With monolithic reinforced concrete structure, to strengthen Floor load-bearing capacity.
Working shaft 1 is generally constructed using shotcrete bolt construction method, and 1 top exterior walls of working shaft are provided with fore shaft collar tie beam 3.Beating
If Guan Peng sides, it is close to shaft wall and performs pipe canopy supporting steel frame 6, play a supportive role to pipe canopy 2.On pipe canopy locating steel frame 6
Welded pipe canopy is oriented to steel pipe 7, plays the role of positioning to pipe canopy 2.
Pipe canopy 2 is that seamless steel pipe is set, it is necessary to be oriented to from pipe canopy in steel pipe 7 into stratum, and precision is set to improve, and right
Slip casting is carried out in pipe；Inside can set small-sized steel reinforcement cage, improve 2 rigidity of pipe canopy, and small-sized steel reinforcement cage includes the hoop 13 in center, ring
Bind round 13 peripheries and be provided with interpolation reinforcing bar 11 and locating support ring 12.
Pipe canopy supporting steel frame 6 is made of crossbeam 9 and perpendicular support 10, generally using shaped steel；Cross member is used as base using shaft floor 5
Plinth, head piece are oriented to steel pipe 7 for pipe canopy and provide carrier, and perpendicular support 10 is set between head piece and cross member.Except 9 both ends of crossbeam need to be set
Put outside perpendicular support 10, according to 9 length of crossbeam, centre can also add perpendicular support 10, to shorten crossbeam span, subtract the overall change of small pipe shed
Shape.Pipe canopy is oriented to 7 one end of steel pipe and is placed on pipe canopy supporting steel frame 6, another with 6 head piece of pipe canopy supporting steel frame, 9 two-sided welding
End is squeezed into 1 side wall of working shaft, and avoids the steel grating in side wall combined bolting and shotcrete system 4.
The ground handling well Shed-pipe Advanced Support pre-add solid system that existing thing is worn under above-mentioned shield section has following architectural feature：
Working shaft 1 is positioned pipe canopy guide pipe 7 and the support of pipe canopy by performing pipe canopy guide pipe 7 in combined bolting and shotcrete side wall
Steelframe 6 welds realization and is accurately positioned, while carries out effective packing to drilling gap, with effective fixing pipe canopy guide pipe 7, it is ensured that pipe
Canopy 2 sets precision.Set pipe canopy 2 along pipe canopy guide pipe 7, bored on 2 slip casting steel pipe of pipe canopy injected hole and grouting methol with
Reinforce surrounding formation.7 diameter 180mm of pipe canopy guide pipe, wall thickness 6mm, long 500mm, pipe canopy guide pipe 7 should be positioned strictly, pipe canopy 2
Horizontal inclinometer should be used often to measure the degree of skewness of pipe canopy 2 in drilling process, it is found that when deviant exceed design requirement, answer and
When rectify a deviation；Steel pipe circumferential direction center spacing 400mm, about 1 °~2 ° of outer limb, steel pipe use diameter 159mm, the seamless steel of wall thickness 6mm
Pipe, merogenesis installation.Injected hole aperture on slip casting steel pipe is 10mm, and pitch of holes 200mm, is arranged in blossom type, steel pipe afterbody（Hole
Mouth section）Hell is not used as only slurry section at 2m.Grouting serous fluid uses cement mortar, just intends parameter：The cement mortar ratio of mud 0.8:1~1:
1, grouting pressure：Using 0.2~0.4MPa, related construction ginseng should be determined according to actual geological condition, and by testing in construction
Number.
The construction method of the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing, its feature are worn under above-mentioned shield section
It is：
Comprise the following steps：
Step 1：Working shaft collar tie beam foundation pit is excavated, performs fore shaft collar tie beam 3；Using reverse construction working shaft 1, vertical shaft base
Hole performs combined bolting and shotcrete system 4 after often excavating 0.5m-1m；Vertical shaft excavation of foundation pit on earth after, perform shaft floor 5；
Step 2：After shaft floor 5 reaches design strength, then set Guan Peng sides and be close to shaft wall and perform pipe canopy supporting steel
Frame 6；6 cross member 9 of pipe canopy supporting steel frame will do necessary connection with shaft floor 5, to ensure that supporting steel frame 6 is stablized；Pipe canopy branch
After support steelframe 6 is installed in place, pipe canopy is equidistantly set into shaft wall along 9 upper limb of head piece and is oriented to steel pipe 7, and steel will be oriented to
Pipe 7 and 9 firm welding of head piece；
Step 3：It is oriented to along pipe canopy after steel pipe 7 drills and sets 2 steel pipe of pipe canopy, according to top construction of structures situation, is put into steel pipe
Enter small-sized steel reinforcement cage to improve 2 overall stiffness of pipe canopy；Into pipe canopy 2, grouting methol fills steel pipe, and reinforces surrounding formations；
Step 4：The timely backfilling working vertical shaft 1 after the completion of performing of pipe canopy 2, it is ensured that the safety of surrounding enviroment during shield crossing.
The pre-add solid system of ground handling well Shed-pipe Advanced Support have it is flexible and changeable, it is adaptable, it is safe and reliable the features such as, have
Effect ground is solved when wearing important construction of structures under shield section, scarce to construction of structures foundation stabilization is difficult, effect is poor, scope is small
Point.The safety of surrounding enviroment, reduces engineering risk when can ensure that Tunnel Passing construction of structures by pipe canopy pre-add solid system.
Present disclosure is not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And any equivalent conversion taken technical solution of the present invention, it is that claim of the invention is covered.
Claims (7)
1. the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section, it is characterised in that：
Including working shaft（1）, working shaft（1）Bottom is shaft floor（5）, well bore is combined bolting and shotcrete system（4）；
Working shaft（1）The shaft floor of bottom（5）Top is provided with pipe canopy supporting steel frame（6）, pipe canopy supporting steel frame（6）Top
It is provided with pipe canopy guide pipe（7）And pipe canopy is peripherally set in layer（2）.
2. the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section according to claim 1, its
It is characterized in that：
Working shaft（1）Top exterior walls are provided with fore shaft collar tie beam（3）.
3. the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section according to claim 1, its
It is characterized in that：
Pipe canopy（2）For seamless steel pipe, small-sized steel reinforcement cage is internally provided with, small-sized steel reinforcement cage includes the hoop in center（13）, hoop
（13）Periphery is provided with interpolation reinforcing bar（11）With locating support ring（12）.
4. the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section according to claim 1, its
It is characterized in that：
Pipe canopy supporting steel frame（6）By crossbeam（9）With perpendicular support（10）Form；
Cross member is with shaft floor（5）Based on, head piece is oriented to steel pipe for pipe canopy（7）Carrier is provided, head piece is horizontal the bottom of with
Perpendicular support is set between beam（10）.
5. the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section according to claim 4, its
It is characterized in that：
Pipe canopy is oriented to steel pipe（7）One end is placed in pipe canopy supporting steel frame（6）On, with pipe canopy supporting steel frame（6）Head piece（9）It is two-sided
Welding, the other end squeeze into working shaft（1）In side wall.
6. the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section according to claim 1, its
It is characterized in that：
Combined bolting and shotcrete system（4）Including advanced anchor tube, steel grating, reinforced mesh and gunite concrete.
7. the construction method of the ground handling well Shed-pipe Advanced Support pre-add solid system of existing thing is worn under shield section, it is characterised in that：
Comprise the following steps：
Step 1：Working shaft collar tie beam foundation pit is excavated, performs fore shaft collar tie beam（3）；Using reverse construction working shaft（1）, erect
Well foundation pit performs combined bolting and shotcrete system after often excavating 0.5m-1m（4）；Vertical shaft excavation of foundation pit on earth after, perform shaft floor（5）；
Step 2：Treat shaft floor（5）After reaching design strength, then set Guan Peng sides be close to shaft wall perform pipe canopy support
Steelframe（6）；Pipe canopy supporting steel frame（6）Cross member（9）With shaft floor（5）Necessary connection is done, to ensure supporting steel frame（6）
Stablize；Pipe canopy supporting steel frame（6）After installation is in place, along head piece（9）Upper limb equidistantly sets pipe canopy guiding into shaft wall
Steel pipe（7）, and steel pipe will be oriented to（7）With head piece（9）Firm welding；
Step 3：Steel pipe is oriented to along pipe canopy（7）Pipe canopy is set after drilling（2）Steel pipe, according to top construction of structures situation, to steel pipe
Small-sized steel reinforcement cage is inside put into improve pipe canopy（2）Overall stiffness；To pipe canopy（2）Interior grouting methol fills steel pipe, and reinforces week
Side stratum；
Step 4：Pipe canopy（2）Timely backfilling working vertical shaft after the completion of performing（1）, it is ensured that the safety of surrounding enviroment during shield crossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247909.7A CN107905817B (en) | 2017-12-01 | 2017-12-01 | Pre-reinforcing system for ground working well advance pipe shed penetrating existing objects in shield region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247909.7A CN107905817B (en) | 2017-12-01 | 2017-12-01 | Pre-reinforcing system for ground working well advance pipe shed penetrating existing objects in shield region |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107905817A true CN107905817A (en) | 2018-04-13 |
| CN107905817B CN107905817B (en) | 2023-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711247909.7A Active CN107905817B (en) | 2017-12-01 | 2017-12-01 | Pre-reinforcing system for ground working well advance pipe shed penetrating existing objects in shield region |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107905817B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252876A (en) * | 2018-06-26 | 2019-01-22 | 中铁五局集团贵州工程有限公司 | A kind of advanced tubule angle positioning device |
| CN110067561A (en) * | 2019-04-26 | 2019-07-30 | 中铁二十三局集团有限公司 | Under wear both wired Urban Underground mining sectbn construction methods |
| CN111502674A (en) * | 2020-04-24 | 2020-08-07 | 中国十九冶集团有限公司 | Advanced support structure and construction method for shallow-buried underground tunnel in water-rich and impurity-filled soil area |
| CN112031778A (en) * | 2020-09-11 | 2020-12-04 | 北京住总集团有限责任公司 | Construction method for shaft excavation based on multi-angle pre-reinforcement |
| CN114876474A (en) * | 2022-05-26 | 2022-08-09 | 中铁第一勘察设计院集团有限公司 | Construction method for enlarging and digging shield well structure by mining method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110067561A (en) * | 2019-04-26 | 2019-07-30 | 中铁二十三局集团有限公司 | Under wear both wired Urban Underground mining sectbn construction methods |
| CN111502674A (en) * | 2020-04-24 | 2020-08-07 | 中国十九冶集团有限公司 | Advanced support structure and construction method for shallow-buried underground tunnel in water-rich and impurity-filled soil area |
| CN112031778A (en) * | 2020-09-11 | 2020-12-04 | 北京住总集团有限责任公司 | Construction method for shaft excavation based on multi-angle pre-reinforcement |
| CN114876474A (en) * | 2022-05-26 | 2022-08-09 | 中铁第一勘察设计院集团有限公司 | Construction method for enlarging and digging shield well structure by mining method |
| CN114876474B (en) * | 2022-05-26 | 2024-04-30 | 中铁第一勘察设计院集团有限公司 | Construction method for expanding and excavating shield well structure by mine method |
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| CN107905817B (en) | 2023-06-23 |
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