CN105862930B - A kind of protection structure to creating existing tunnel below underground engineering - Google Patents
A kind of protection structure to creating existing tunnel below underground engineering Download PDFInfo
- Publication number
- CN105862930B CN105862930B CN201610379597.4A CN201610379597A CN105862930B CN 105862930 B CN105862930 B CN 105862930B CN 201610379597 A CN201610379597 A CN 201610379597A CN 105862930 B CN105862930 B CN 105862930B
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- existing tunnel
- uplift pile
- uplift
- tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims description 23
- 239000004567 concrete Substances 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 6
- 230000010412 perfusion Effects 0.000 claims description 5
- 238000002513 implantation Methods 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
-
- 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
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Pulmonology (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Business, Economics & Management (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Technical field is built the present invention relates to underground engineering, in particular to a kind of protection structure to creating existing tunnel below underground engineering.Including the more uplift piles at left and right sides of existing tunnel extending direction and the steel pipe being set up in above existing tunnel, the uplift pile positioned at existing tunnel homonymy is spaced evenly distributed successively, and steel pipe is fixed on the upper end of two opposite uplift piles of existing tunnel both sides.The purpose of the present invention is to overcome the above shortcomings and defect; solve the problems, such as excavation of foundation pit above current existing tunnel; it is proposed a kind of excavation to existing tunnel and guard method, operation tunnel is closed before reaching top excavation of foundation pit, reaches the effect that excavation of foundation pit disturbs existing tunnel zero.
Description
Technical field
Technical field is built the present invention relates to underground engineering, in particular to one kind to creating existing tunnel below underground engineering
The protection structure in road.
Background technology
With the construction of urban rail traffic project, substantial amounts of Tunnel Engineering has been built in each big city main city zone, after
When phase carries out Urban Underground Space Excavation or urban road tunnel construction above existing tunnel, the unloading meeting of stratum soil excavation
Existing tunnel is caused to be swelled upwards with the rebound of the soil body.It is more using to tunnel two at present in order to reduce the protuberance of existing tunnel
Side and top grouting in soil mass or stirring reinforcement protection, and set uplift pile to take into account certain buffer action in tunnel both sides, then
Piecemeal carries out pouring for soil excavation and newly-built structure, by increasing ground stiffness layer, reducing each excavation area, utilizes space-time
Effect reduces the uplift capacity in tunnel.Such as Nanjing Long Pan roads tunnel, Shanghai Dongfang Road lower cervical spine engineering, Hangzhou Jinsha lake oasis
The engineerings such as subsidence observation engineering, employ similar construction method.
After existing construction method tunnel upper soil excavation, excavation pit bottom surface in the vertical direction does not constrain, institute
Cannot fundamentally avoid the protuberance on lower section stratum.Foundation pit piecemeal excavates can utilize bottom of foundation ditch uplift of soil in theory
Tau-effect, reduces uplift capacity, but due to reducing construction efficiency, objectively adds foundation pit bottom open-assembly time again, final right
The control action of pit accident is very limited.From the point of view of practice effect, caused lower section during engineering soil excavation is partly descended
Tunnel heaving amount has exceeded the permission shift standards of tunnel normal operation.
It is proposed that forming concrete protective shell around tunnel in advance, existing tunnel caused by excavation of foundation pit is reduced
Protuberance.Such as the middle promulgated by the State Council of entitled " a kind of foundation ditch on top of underground railway tunnel excavation method " of Patent No. " CN104532849A "
Bright patent, the patent describe one kind and coordinates jacking tube coupling using diaphram wall and coordinate cast in place concrete plate to form protection
Shell, the method then protected on the construction method progress existing tunnel of excavation section by section, this method is first in the both sides of existing tunnel
Safeguard structure is built, the reinforced concrete wall which forms for tube pile structure with concreting, then in existing tunnel
Top tube coupling is laid in the top of existing tunnel using jacking, casting concrete and connect in push pipe with the underground of both sides
Continuous wall pours integral structure, completes the construction of protection structure, then starts construction second apart from the place of protection structure 5m
A protection structure, 5 meters of gap is connected by cast-in-place concrete between push pipe, then alternation excavation successively.This method utilizes perpendicular
To diaphram wall and horizontal push pipe be collectively forming protection structure, then reduce the engineering excavated every time by being spaced construction
Amount, reduces the probability of tunnel heaving.But influence during this method tunnel both sides construction of diaphragm wall to existing tunnel is very big,
Easily cause tunnel occurred level displacement and horizontal ovalizing deflection；In addition, subway sectional tunnel is parallel in Practical Project
Two tunnels, this will cause protect structure in horizontal concrete slab span it is too big, when bottom-up protuberance, concrete slab with
And arch upward.If by increasing the thickness resistance to deformation of plate, concrete slab thickness at least needs more than 3 meters, which greatly increases
Construction investment and difficulty of construction, are unfavorable for promoting the use of.
The content of the invention
Present invention aim to solve to mention in above-mentioned background technology existing alternation excavation, section construction technology with
And low construction efficiency existing for the protection scheme that proposes of existing invention, the problems such as protecting effect difference and poor scheme exploitativeness,
A kind of new protection structure of existing tunnel below underground engineering is provided.
The technical scheme is that：A kind of protection structure to creating existing tunnel below underground engineering, its feature exist
In：Including the more uplift piles at left and right sides of existing tunnel extending direction and the steel pipe being set up in above existing tunnel, position
It is spaced successively in the uplift pile of existing tunnel homonymy evenly distributed, steel pipe is fixed on two opposite resistance to pluckings of existing tunnel both sides
The upper end of stake.
The further steel pipe offers opening with uplift pile upper end corresponding position, and uplift pile upper end, which is provided with, to be arranged in
Reinforcing bar in the opening, uplift pile form overall structure by reinforcing bar with steel pipe together with concreting.
The reinforcing bar be L-type structure, including extend into uplift pile along the length direction arrangement of uplift pile
Interior lower rib and it is extend into from steel pipe opening in steel pipe along the length direction arrangement of steel pipe and hooks the upper rib of steel pipe.
The further pipe diameter meets that personnel enter and carries out pipe cutting job requirements.
Spacing distance is 20~30cm between further adjacent steel pipe
A kind of construction method to creating the protection structure of existing tunnel below underground engineering, it is characterised in that：Including with
Lower step：
1st, it is arranged at intervals armored concrete uplift pile in the both sides of existing tunnel extending direction；
2nd, push pipe is excavated on side ground of the side uplift pile away from existing tunnel and originates working pit, in opposite side resistance to plucking
Stake excavates reception working pit corresponding with originating working pit on remote existing tunnel side ground；
3rd, steel pipe one end is pushed into reception working pit from working pit is originated using push bench process；
4th, manually casting concrete forms steel tube concrete beam, and uplift pile corresponding with existing tunnel both sides in steel pipe
It is fixed together；
5th, construct successively, until all steel tube concrete beams are fixedly connected with the upper end of uplift pile, form existing tunnel
Protection structure, then excavate steel pipe above the soil body, proposed underground structure of constructing.
It is manually entered in steel pipe in the further step, first cuts open steel pipe and uplift pile upper end junction,
The rib under the implantation of the upper end of uplift pile again, upper rib is extend into steel pipe from the opening cut open, finally in steel pipe and anti-
Uplift pile, lower rib, upper rib and steel pipe are fixedly connected as overall structure by concrete perfusion in pile pulling.
Advantages of the present invention has：With the fast development in city, city space is more and more nervous, in Process of Urban Development not
It is evitable to run into the situation that foundation pit is built above operation tactics.In conventional method, to retain above operation tunnel big
Amount is undisturbed the soil body, and method of the method for the present invention by building protection structure on the outside of existing tunnel in advance can be effective
Prevent that because existing tunnel swells caused by excavation the problem of, excavation of foundation pit can be excavated to the position of 2~3m above tunnel roof,
The underground space can be utilized to greatest extent.
In the work progress for building the protection structure on the outside of existing tunnel, disturbance of each construction procedure to existing tunnel is equal
Very little, greatly improves the security reliability during subway tunnel operation.
The existing tunnel protection structure that the present invention is built can be along any extension in longitudinal direction of existing tunnel, therefore need not make
With the construction method of excavation section by section, foundation pit of the invention, which can be excavated disposably, to be completed and asking without worry tunnel heaving deformation
Topic, drastically increases the progress of foundation pit construction and the globality of structure.
In addition, the method for the present invention can be adapted for the parallel situation in several tunnels, it is anti-by being added between parallel tunnels
Pile pulling, and be connected with horizontal concrete filled steel tube, reduces the span of horizontal protection structure, can prevent it is horizontal protect structure with
Stratum protuberance produces excessive arch upward.
In general, the purpose of the present invention is to overcome the above shortcomings and defect, solves foundation pit above current operation tunnel
The influence problem to existing tunnel is excavated, a kind of guard method to operation tunnel is proposed, realizes excavation of foundation pit to operation tunnel
Substantially undisturbed effect.
Brief description of the drawings
Fig. 1：The structure diagram of the step 1 of the present embodiment；
Fig. 2：The structure diagram of the step 2 of the present embodiment；
Fig. 3：The structure diagram of the step 3 of the present embodiment；
Fig. 4：The structure diagram of the step 4 of the present embodiment；
Fig. 5：The structure diagram of the step 5 of the present embodiment；
Fig. 6：The A-A views of Fig. 5 of the present invention；
Wherein：1-existing tunnel；2-uplift pile；3-originate working pit；4-receive working pit；5-steel pipe；6-ground
Lower structure；7-excavation pit；8-go up rib；9-lower rib.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1~5, the protection structure of the present embodiment is " π " type frame structure, including is 1 extending direction two of existing tunnel
More uplift piles 2 of side, the uplift pile 2 positioned at 1 homonymy of existing tunnel are spaced evenly distributed successively, and uplift pile 2 is centered around existing
The left and right sides (as shown in Figure 1, the left and right sides of existing tunnel is the left and right directions of existing tunnel 1 in figure) in tunnel 1, uplift pile
2 are not less than 1m apart from the distance of existing tunnel 1.The uplift pile 2 of 1 both sides of existing tunnel is positioned opposite, and the upper end of uplift pile 2 is set
There is steel pipe 5, steel pipe 5 is the steel-tube construction being set up between excavation pit 7 and existing tunnel 1, steel pipe 5 is installed using push bench process
In the top of existing tunnel 1.
The construction method of uplift pile 2 is：First drill in the both sides of existing tunnel 1, reinforcing bar is then irrigated in hole mixes
Solidifying soil forms uplift pile 2.Uplift pile 2 is reinforced concrete structure, perfusion mortar in the hole of 2 upper end of uplift pile, easy to steel pipe 5
Jacking construction.
Concrete perfusion forms steel tube concrete beam in steel pipe 5, and pair of 1 both sides of existing tunnel is separately fixed in the middle part of beam
2 upper end of uplift pile of position is answered, " π " type frame structure is formed with two uplift piles 2, is arranged along 1 extending direction of existing tunnel more
A " π " type frame structure, 20~30cm is spaced between adjacent " π " type frame structure, and multiple " π " type frame structures are formed and are centered around
The protection structure in the outside of existing tunnel 1.
The position of 5 face uplift pile 2 of steel pipe offers opening, the upper end implantation reinforcing bar of anti-tabular 2, and reinforcing bar passes through concrete
Pour and be fixed in uplift pile 2 and steel pipe 5, form overall structure, as shown in Figure 4.Reinforcing bar includes the length direction along uplift pile 2
The upper rib 8 of the lower rib 9 arranged and the length direction arrangement along steel pipe 5, lower rib 9 are cast in uplift pile 2, upper rib 8
It is cast in steel pipe 5, upper rib 8 is fixed on the upper end of lower rib 9 and lower rib 9 forms L-type structure.
Specific work progress comprises the following steps：
1st, as shown in Figure 1, being arranged at intervals reinforcing bar uplift pile 2 in the both sides of 1 extending direction of existing tunnel, uplift pile 2 uses
Drill-pouring method is constructed, and is arranged successively along the extending direction of existing tunnel 1；
2nd, as shown in Fig. 2, push pipe is excavated on side ground of the side uplift pile 2 away from existing tunnel 1 originates working pit
3, in opposite side uplift pile 2 away from reception working pit 4 corresponding with originating working pit 3 is excavated on 1 side ground of existing tunnel, begin
The both sides that working pit 3 is located at excavation pit 7 with receiving working pit 4 respectively are sent out, due to originating working pit 3 with receiving working pit 4 simultaneously
The top of existing tunnel 1 it is not located at, excavating the two holes can't cause the protuberance of existing tunnel 1 to deform, and existing tunnel 1
Both sides be already provided with uplift pile 2, uplift pile 2 forms lateral protection structure, can also prevent existing tunnel 1 from occurring to both sides
Horizontal displacement；
3rd, as shown in figure 3, being pushed into 5 one end of steel pipe in reception working pit 4 from working pit 3 is originated using push bench process, steel
Perpendicular to the extending direction of existing tunnel 1, steel pipe 5 passes through pipe 5 from the mortar of 2 upper end of uplift pile；
4th, as shown in figure 4, two opposite uplift piles 2 of steel pipe 5 and 1 both sides of existing tunnel are fixed together shape
Into " π " shape frame, specific process is that staff is entered in steel pipe 5, and steel pipe 5 and 2 upper end junction of uplift pile are cut open,
Again uplift pile 2 upper end be implanted into reinforcing bar, upper rib 8 is inserted into the steel pipe 5 cut open, casting concrete by upper rib 8,
Steel pipe 5, lower rib 9 and uplift pile 2 are poured and are fixed together, the concrete perfusion in steel pipe 5；
5th, as shown in figure 5, constructing successively, until all steel pipes 5 are fixedly connected with the upper end of uplift pile 2, steel pipe 5 is excavated
The top soil body, proposed underground structure 6 of constructing.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (4)
- A kind of 1. protection structure to creating existing tunnel below underground engineering, it is characterised in that：Including positioned at existing tunnel (1) More uplift piles (2) at left and right sides of extending direction and the steel pipe (5) being set up in above existing tunnel (1), positioned at existing tunnel (1) uplift pile (2) of homonymy is spaced evenly distributed successively, steel pipe (5) be fixed on two of existing tunnel (1) both sides it is opposite anti- The upper end of pile pulling (2)；Described steel pipe (5) internal diameter meets that personnel enter and carries out pipe cutting job requirements；The steel pipe (5) Opening is offered with uplift pile (2) upper end corresponding position, uplift pile (2) upper end is provided with the reinforcing bar being arranged in the opening, resistance to plucking Stake (2) forms overall structure by reinforcing bar with steel pipe (5) together with concreting；The reinforcing bar is L-type structure, including The lower rib (9) extending into uplift pile (2) and the length direction along steel pipe (5) arranged along the length direction of uplift pile (2) Arrange the upper rib (8) for being extend into from steel pipe (5) opening in steel pipe (5) and hooking steel pipe (5).
- A kind of 2. protection structure to creating existing tunnel below underground engineering as claimed in claim 1, it is characterised in that：Phase Spacing distance is 20~30cm between adjacent steel pipe (5).
- A kind of a kind of 3. construction party to creating the protection structure of existing tunnel below underground engineering as claimed in claim 1 Method, it is characterised in that：Comprise the following steps：1), reinforcing bar uplift pile (2) is arranged at intervals in the both sides of existing tunnel (1) extending direction；2) push pipe, is excavated on side ground of the side uplift pile (2) away from existing tunnel (1) and originates working pit (3), another Side uplift pile (2) excavates reception working pit (4) corresponding with originating working pit (3) on remote existing tunnel (1) side ground；3), steel pipe (5) one end is pushed into reception working pit (4) from working pit (3) is originated using push bench process；4), it is manually entered in steel pipe (5) that two opposite uplift piles (2) of steel pipe (5) and existing tunnel (1) both sides are fixed Link together；5), construct successively, until all steel pipes (5) are fixedly connected with the upper end of uplift pile (2), excavate necromancer on steel pipe (5) Body, proposed underground structure (6) of constructing.
- 4. a kind of construction method to creating the protection structure of existing tunnel below underground engineering as claimed in claim 3, its It is characterized in that：It is manually entered in the step 4) in steel pipe (5), first cuts steel pipe (5) and uplift pile (2) upper end junction Open, then the rib (9) under the implantation of the upper end of uplift pile (2), upper rib (8) is extend into from the opening cut open in steel pipe (5), Finally in steel pipe (5) and uplift pile (2) concrete perfusion by uplift pile (2), lower rib (9), upper rib (8) and steel pipe (5) It is fixedly connected as overall structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610379597.4A CN105862930B (en) | 2016-05-31 | 2016-05-31 | A kind of protection structure to creating existing tunnel below underground engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610379597.4A CN105862930B (en) | 2016-05-31 | 2016-05-31 | A kind of protection structure to creating existing tunnel below underground engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105862930A CN105862930A (en) | 2016-08-17 |
| CN105862930B true CN105862930B (en) | 2018-05-15 |
Family
ID=56643320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610379597.4A Active CN105862930B (en) | 2016-05-31 | 2016-05-31 | A kind of protection structure to creating existing tunnel below underground engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105862930B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218938A (en) * | 2020-01-07 | 2020-06-02 | 中国建筑第八工程局有限公司 | Excavation construction method for foundation pit above existing tunnel |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108517871A (en) * | 2018-03-15 | 2018-09-11 | 大连交通大学 | A kind of control excavation of foundation pit induces the structure and its construction method of tunnel upward floating |
| CN109235507B (en) * | 2018-10-26 | 2023-09-22 | 中铁四局集团第一工程有限公司 | Stratum reinforcing system and method for reinforcing existing tunnel |
| CN110409418A (en) * | 2019-06-12 | 2019-11-05 | 苏州市轨道交通集团有限公司 | Control the foundation reinforcing structure and construction method of existing subway tunnel deformation |
| CN110241863B (en) * | 2019-07-06 | 2024-04-16 | 福建省水利水电勘测设计研究院有限公司 | Soft soil foundation pit excavation process pipe gallery deformation control device and control method thereof |
| CN110725344A (en) * | 2019-10-25 | 2020-01-24 | 安徽省城建设计研究总院股份有限公司 | Method for preventing existing tunnel from floating upwards during earthwork unloading |
| CN110952563A (en) * | 2019-12-05 | 2020-04-03 | 广州地铁设计研究院股份有限公司 | Temporary anti-floating structure for excavation of foundation pit above existing subway tunnel |
| CN112523265A (en) * | 2020-11-27 | 2021-03-19 | 广州地铁设计研究院股份有限公司 | Protective structure for excavating foundation pit and spanning existing tunnel and construction method thereof |
| CN114541408B (en) * | 2022-03-03 | 2023-06-02 | 中铁四局集团有限公司 | Front upper part wind-containing well structure of underground station end well and underpass construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203161244U (en) * | 2013-01-30 | 2013-08-28 | 中铁二院工程集团有限责任公司 | Existing subway underground excavation running tunnel protection structure |
| KR101381325B1 (en) * | 2013-05-30 | 2014-04-04 | 성은주 | The non-open cut tunnel construction method using the multistage small diameter steel pipe |
| CN203569698U (en) * | 2013-10-16 | 2014-04-30 | 中信建筑设计研究总院有限公司 | Prestressed concrete beam and concrete-filled steel tube column joint structure |
| CN204418391U (en) * | 2015-01-16 | 2015-06-24 | 济南轨道交通集团有限公司 | A kind of concrete composite beam and concrete filled steel tube column jointing gusset |
| CN204781355U (en) * | 2015-05-22 | 2015-11-18 | 中南建筑设计院股份有限公司 | Reinforced concrete roof beam and circular steel tube concrete column connected node |
| CN205742292U (en) * | 2016-05-31 | 2016-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of to the protection structure of existing tunnel below newly-built underground engineering |
-
2016
- 2016-05-31 CN CN201610379597.4A patent/CN105862930B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203161244U (en) * | 2013-01-30 | 2013-08-28 | 中铁二院工程集团有限责任公司 | Existing subway underground excavation running tunnel protection structure |
| KR101381325B1 (en) * | 2013-05-30 | 2014-04-04 | 성은주 | The non-open cut tunnel construction method using the multistage small diameter steel pipe |
| CN203569698U (en) * | 2013-10-16 | 2014-04-30 | 中信建筑设计研究总院有限公司 | Prestressed concrete beam and concrete-filled steel tube column joint structure |
| CN204418391U (en) * | 2015-01-16 | 2015-06-24 | 济南轨道交通集团有限公司 | A kind of concrete composite beam and concrete filled steel tube column jointing gusset |
| CN204781355U (en) * | 2015-05-22 | 2015-11-18 | 中南建筑设计院股份有限公司 | Reinforced concrete roof beam and circular steel tube concrete column connected node |
| CN205742292U (en) * | 2016-05-31 | 2016-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of to the protection structure of existing tunnel below newly-built underground engineering |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218938A (en) * | 2020-01-07 | 2020-06-02 | 中国建筑第八工程局有限公司 | Excavation construction method for foundation pit above existing tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105862930A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105862930B (en) | A kind of protection structure to creating existing tunnel below underground engineering | |
| CN105041349B (en) | A kind of excavating construction method that station is digged on the basis of Subway Tunnel shield tunnel | |
| CN106801417B (en) | Tunnel Passing structures steel pipe isolation pile stratum consolidation system and its construction method | |
| CN105064397B (en) | Open excavation construction method for expanding excavation of station on metro interzone shield tunnel foundation | |
| CN106638673B (en) | A kind of construction method of compound retaining structure | |
| CN205742213U (en) | Foundation pit supporting construction | |
| CN104452809A (en) | Ultra-shallow buried tunnel cover-excavation construction method | |
| CN106958256A (en) | A kind of placement layer by layer, the open caisson construction technique repeatedly sunk | |
| CN104264688A (en) | Manual hole digging non-uniform pile support construction technology | |
| CN105089670B (en) | Construction method for enlarging and excavating subway station on basis of parallel interval shield tunnel | |
| CN103938634B (en) | A kind of deep foundation pit supporting structure and construction method | |
| CN103696784A (en) | Large-diameter long pipe curtain construction method for shallowly-buried large-span under-tunnel-passing architectural structure | |
| CN108842819A (en) | A kind of urban track traffic cable run method for tunnel construction | |
| CN113669073B (en) | Construction method for controlling adjacent building deformation of water-rich sandy stratum by tunneling before station | |
| CN110004991A (en) | Underground structure anti-floating system and construction method based on raised type tangs plate | |
| WO2023213117A1 (en) | Widening structure and construction method for existing subgrade embankment wall section near river | |
| CN104894926B (en) | Retaining structure and its construction method on the high embankment of existing railway | |
| CN113653105A (en) | Anti-floating system of existing subway structure and construction method thereof | |
| CN109577322A (en) | A kind of constructing device for inside soil body existing pile foundation pile extension | |
| CN104453915B (en) | Big cross section vertical shaft pre-pouring grout reinforces Rapid Excavation method | |
| CN109881683A (en) | A kind of more sublevel retaining structures and its construction method for combining artificial earth fill's grouting reinforcement technique | |
| CN109610473A (en) | A kind of construction method of the large-scale pool structure foundation pit supporting system of municipal administration | |
| CN101215840A (en) | Airplane-type foundation reinforcement given-force construction method | |
| CN211144503U (en) | High steep topography bridge tunnel meets section open cut tunnel and connects long structure | |
| CN216765941U (en) | Tunnel decompression load shedding structure under bias voltage state |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |