CN106801417A - Tunnel Passing structures steel pipe isolation pile stratum consolidation system and its construction method - Google Patents
Tunnel Passing structures steel pipe isolation pile stratum consolidation system and its construction method Download PDFInfo
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- CN106801417A CN106801417A CN201611108764.8A CN201611108764A CN106801417A CN 106801417 A CN106801417 A CN 106801417A CN 201611108764 A CN201611108764 A CN 201611108764A CN 106801417 A CN106801417 A CN 106801417A
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- steel pipe
- isolation pile
- pipe isolation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
Abstract
The present invention relates to Tunnel Passing structures steel pipe isolation pile stratum consolidation system and its construction method.Influenceed by surrounding enviroment, during Tunnel Passing structures, may be limited with surrounding enviroment by site condition, the isolation pile of conventional cast-in-situ bored pile pattern without implementation condition, such as when net level length is not enough between tunnel and structures, or when wearing structures under tunnel.The present invention is in existing buildings（Basement）Set steel pipe isolation pile in a row between Under-cross tunnel, the tunnel arch following certain distance in bottom is goed deep into its bottom, and steel pipe isolation pile is oblique or vertically squeezes into, and top is linked to be entirety by stake top Guan Liang；Between steel pipe isolation pile and structures basement, then set mini-valve tube in a row, the following certain distance of structures basement is goed deep into its bottom, is tracked slip casting.The present invention has that floor space is small, construction is flexibly and the characteristics of adapt to all kinds of environmental requirements, can meet it is various in the case of the requirement of structures consolidation process.
Description
Technical field
The invention belongs to Tunnel Engineering technical field, and in particular to a kind of Tunnel Passing structures steel pipe isolation pile stratum adds
Solid system and its construction method.
Background technology
For the railway traffic engineering of current cities in China, with the continuous encryption of subway gauze, follow-up subway line
When road is built, influenceed by built subway line and surrounding enviroment, in line alignment and paving mode, spatial relationship and structural type
The requirement of the aspects such as formula and construction method and engineering measure is stricter.When Tunnel Passing existing buildings, by space away from
From the influence with underground utilities, the isolation pile of conventional cast-in-situ bored pile pattern may be without implementation condition.
The content of the invention
It is an object of the invention to provide a kind of Tunnel Passing structures steel pipe isolation pile stratum consolidation system and its construction party
Method, is acted on by the isolation effect of steel-pipe pile under complex environment with the tracking grouting of mini-valve tube, and achievable Tunnel Passing is constructed
During thing, structure base bearing capacity is substantially unaffected.
The technical solution adopted in the present invention is：
Tunnel Passing structures steel pipe isolation pile stratum consolidation system, it is characterised in that：
Set steel pipe isolation pile in a row between existing buildings basement and Under-cross tunnel, steel pipe isolation pile is oblique or vertically beats
Enter, steel pipe isolation pile top is linked to be entirety by stake top Guan Liang.
Mini-valve tube is set in a row between steel pipe isolation pile and structures basement.
Steel pipe isolation pile is formed by the framework of steel reinforcement in steel pipe and steel pipe by concrete perfusion, and framework of steel reinforcement includes joint bar
With the stirrup of annular configuration.
Stake top Guan Liang is stretched at steel pipe isolation pile top, and steel pipe isolation pile stake top position is provided with the U-shaped reinforcing bar of outward opening,
Steel pipe is firmly welded with U-shaped reinforcing bar；
Perpendicular Guan Liang reinforcing bar is welded with U-shaped reinforcing bar.
At least 2m below tunnel arch bottom is goed deep into steel pipe isolation pile bottom, stake top Guan Liang top surface and ground at the top of steel pipe isolation pile
Table is concordant；
Steel pipe isolation pile and horizontal plane angle >=30 °；
The longitudinal pitch of steel pipe isolation pile is not less than 0.5m.
At least 3m below structures basement bottom board is goed deep into mini-valve tube bottom, and top is concordant with earth's surface；
Mini-valve tube and horizontal plane angle >=30 °；
The longitudinal pitch of mini-valve tube is not less than 0.5m.
The construction method of Tunnel Passing structures steel pipe isolation pile stratum consolidation system, it is characterised in that：
Comprise the following steps：
Step one：Setting-out is measured between existing buildings and tunnel, according to design coordinate, steel pipe isolation pile is marked with sleeve
Valve pipe is in earth's surface respective coordinates point position；
Step 2：Mounting and positioning device, according to design angle, using roof-bolter or other rig pore-formings, drilling diameter is slightly larger than
Steel pipe isolation pile diameter, to ensure pore-forming effect, needs strictly to control rig angle using pipe-following drilling technique, in pore forming process,
Ensure to be crept into along design direction high accuracy；
Step 3：In pore forming process, steel pipe is put into according to depth of pore forming in time, every section of length of steel pipe is considered by 3~5m, steel pipe
Joint is firmly connected using screw thread, it is ensured that steel pipe bottom gos deep at least 2m below tunnel arch bottom；；After pore-forming terminates, by steel pipe every
Space between stake and pore-forming hole wall, is backfilled closely knit using cement mortar；
Step 4：Before treating that steel pipe is placed into specified location on request, the joint bar in steel pipe and stirrup are welded on request whole
, then be put into framework of steel reinforcement in steel pipe by body framework of steel reinforcement, and slightly expanded concrete is finally irrigated on request, and being formed has certain resisting
The steel pipe isolation pile of curved rigidity；
Step 5：After steel pipe isolation pile is all implemented in place, stake top is excavated, U-shaped steel is welded in stake top steel pipe wall site
Muscle, subsequent colligation Guan Liang reinforcing bar, and U-shaped reinforcing bar is welded on request with Guan Liang reinforcing bar, subsequent casting concrete, form Guan Liang；
Step 6：Roof-bolter or other rig pore-formings are used according to mini-valve tube setting-out coordinate again, drilling diameter is slightly larger than sleeve valve
Pipe diameter, needs strictly to control rig angle in pore forming process, it is ensured that crept into along design direction high accuracy；
Step 7：After mini-valve tube pore-forming terminates, pre-buried mini-valve tube on request, mini-valve tube bottom is deeply by protection structures underground
At least 3m below the base plate of room；
Step 8：During Tunnel Passing structures, according to monitoring situation, mini-valve tube tracking grouting is carried out in time, by tunnel excavation
The stratum settlement for causing effectively is made up in the influence of structures bottom by sleeve valve barrel grouting.
The present invention has advantages below：
The present invention sets steel-pipe pile, mini-valve tube in earth's surface, is inserted into steel reinforcement cage, pressure injection micro-expansion cement in steel-pipe pile, in stake top
Guan Liang is poured, steel pipe isolation pile reinforcement system is formed, the steel being related to, cement mortar and steel-pipe pile set machinery used
Equipment etc. is conventional material（Equipment）, its corresponding size is general type, is easy to processing and manufacturing；And steel-pipe pile, mini-valve tube are long
Degree can be adjusted according to tunnel with structures buried depth, and steel-pipe pile, the horizontal layout of mini-valve tube can be distributed feelings according to underground utilities
The relative position relation of condition, tunnel and structures is adjusted, and steel-pipe pile rigidity can be according to the slightly expanded concrete of internal filling
Grade, steel reinforcement cage and steel pipe stiffness by itself information summary determine, steel-pipe pile, the quantity of mini-valve tube, setting angle can be according to being added
Gu it is adjusted the need for structures.By the blanketing effect of steel pipe isolation pile, the tracking grouting effect of mini-valve tube, it can be ensured that tunnel
Road pass through structures during surrounding enviroment safety, reach that can to meet surrounding enviroment harsh small with floor space, can reach again
The requirement of stratum consolidation, during conventional cast-in-situ bored pile can be avoided to implement, noise is big, it is big to take up an area, while it may also be desirable to carry out
Underground utilities move the adverse effect for changing.With economic benefit and social benefit higher, in urban track traffic, railway, highway
Etc. having wide practical use in engineering.
Brief description of the drawings
Fig. 1 is that steel pipe isolation pile reinforces schematic diagram.
Fig. 2 is joint bar drawing in steel pipe isolation pile.
Fig. 3 is the short muscle welding schematic diagram of steel pipe top.
In figure, 1- existing buildings, 2- structures basements, 3- tunnels, 4- steel pipe isolation piles, 5- mini-valve tubes, 6- stake tops
Guan Liang, 7- Guan Liang reinforcing bars, 8-U steel bars, 9- joint bars, 10- stirrups.
Specific embodiment
With reference to specific embodiment, the present invention will be described in detail.
Tunnel Passing structures steel pipe isolation pile stratum consolidation system of the present invention, in constructing for existing buildings 1
Thing basement 2 and under set steel pipe isolation pile 4 in a row between the tunnel 3 worn, steel pipe isolation pile 4 is oblique or vertically squeezes into, steel pipe
The top of isolation pile 4 is linked to be entirety by horizontal stake top Guan Liang 6.Steel pipe isolation pile 4 and existing buildings 1 have certain level away from
From, with ensure reinforcement measure implement during existing buildings 1 safety.Set between steel pipe isolation pile 4 and structures basement 2
The mini-valve tube 5 being arranged in rows.
Existing buildings 1 may include various type of foundations, structural shape, and structures basement 2 is general by being examined within 3 layers
Consider；Tunnel 3 can be similar round or shape of a hoof Tunneling by mining method, circular shield tunnel, or rectangle open trench tunnel.
Steel pipe isolation pile 4 is formed by the framework of steel reinforcement in steel pipe and steel pipe by concrete perfusion, and framework of steel reinforcement includes inserting
The stirrup 10 of muscle 9 and annular configuration.Stretch into the certain distance of stake top Guan Liang 6, the stake top of steel pipe isolation pile 4 in the top of steel pipe isolation pile 4
Position is provided with the U-shaped reinforcing bar 8 of outward opening, and steel pipe is welded to connect with U-shaped reinforcing bar 8；It is welded with U-shaped reinforcing bar 8 perpendicular
Guan Liang reinforcing bar 7.The following certain distance in the bottom of tunnel 3 is goed deep into the bottom of steel pipe isolation pile 4（Not less than 2m）, to ensure isolation effect
Really, 4 top Guan Liang of steel pipe isolation pile, 6 top surfaces are concordant with ground；Steel pipe isolation pile 4 and horizontal plane angle >=30 °；Steel pipe isolation pile
4 longitudinal pitch is not less than 0.5m.
The following certain distance of base plate of structures basement 2 is goed deep into the bottom of mini-valve tube 5（Not less than 3m）, top is put down with ground
Together；Mini-valve tube 5 and horizontal plane angle >=30 °；The longitudinal pitch of mini-valve tube 5 is not less than 0.5m.
The construction method of above-mentioned Tunnel Passing structures steel pipe isolation pile stratum consolidation system, comprises the following steps：
Step one：Setting-out is measured between existing buildings 1 and Under-cross tunnel 3, according to design coordinate, steel pipe isolation is marked
Stake 4 is with mini-valve tube 5 in earth's surface respective coordinates point position；
Step 2：Mounting and positioning device, according to design angle, using roof-bolter or other rig pore-formings, drilling diameter is slightly larger than
The diameter of steel pipe isolation pile 3, to ensure pore-forming effect, needs strictly to control rig angle using pipe-following drilling technique, in pore forming process,
Ensure to be crept into along design direction high accuracy；
Step 3：In pore forming process, steel pipe is put into according to depth of pore forming in time, every section of length of steel pipe is considered by 3~5m, steel pipe
Joint is firmly connected using screw thread；After pore-forming terminates, by the space between steel pipe isolation pile 3 and pore-forming hole wall, using cement mortar
Backfill is closely knit；
Step 4：Before treating that steel pipe is placed into specified location on request, the joint bar 9 in steel pipe and stirrup 10 are welded on request
, then be put into framework of steel reinforcement in steel pipe by overall framework of steel reinforcement, and slightly expanded concrete is finally irrigated on request, and being formed has necessarily
The steel pipe isolation pile 4 of bending rigidity；
Step 5：After steel pipe isolation pile 4 is all implemented in place, stake top is excavated, weld U-shaped reinforcing bar 8 at stake top position, then
Colligation Guan Liang reinforcing bar 6, and U-shaped reinforcing bar 8 is welded on request with Guan Liang reinforcing bar 6, subsequent casting concrete, form Guan Liang 6；
Step 6：Roof-bolter or other rig pore-formings are used according to the setting-out coordinate of mini-valve tube 5 again, drilling diameter is slightly larger than sleeve valve
Pipe diameter, needs strictly to control rig angle in pore forming process, it is ensured that crept into along design direction high accuracy；
Step 7：After mini-valve tube pore-forming terminates, pre-buried mini-valve tube 5 on request, the bottom of mini-valve tube 5 is deeply by protection structures ground
3m below the lower base plate of room 2；
Step 8：During Tunnel Passing structures, according to monitoring situation, the tracking grouting of mini-valve tube 5 is carried out in time, by tunnel excavation
The stratum settlement for causing effectively is made up in the influence of the bottom of structures 1 by sleeve valve barrel grouting.
Steel pipe isolation pile with the structures safeguard measure that mini-valve tube is combined have flexible and changeable, strong adaptability, safety can
By the features such as.Steel-pipe pile plan-position can be adjusted as needed with angle is set, and this is essential characteristic of the invention, stake top
Steel reinforcement cage and slightly expanded concrete that Guan Liang, steel-pipe pile are inserted into are to ensure that the basic measures of its overall isolation effect, add
The tracking grouting effect of mini-valve tube, it can be ensured that the Environmental security during Tunnel Passing structures.
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 claim of the invention and is covered.
Claims (7)
1. Tunnel Passing structures steel pipe isolation pile stratum consolidation system, it is characterised in that：
In existing buildings（1）Basement and Under-cross tunnel（3）Between set steel pipe isolation pile in a row（4）, steel pipe isolation pile（4）
It is oblique or vertically squeeze into, steel pipe isolation pile（4）Top passes through stake top Guan Liang（6）It is linked to be entirety.
2. Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 1, it is characterised in that：
Steel pipe isolation pile（4）With structures basement（2）Between set mini-valve tube in a row（5）.
3. Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 1, it is characterised in that：
Steel pipe isolation pile（4）Formed by concrete perfusion by the framework of steel reinforcement in steel pipe and steel pipe, framework of steel reinforcement includes joint bar
（9）With the stirrup of annular configuration（10）.
4. Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 1, it is characterised in that：
Steel pipe isolation pile（4）Stretch into stake top Guan Liang in top（6）, steel pipe isolation pile（4）Stake top position is provided with the U-shaped of outward opening
Reinforcing bar（8）, steel pipe and U-shaped reinforcing bar（8）Firmly welding；
U-shaped reinforcing bar（8）On be welded with perpendicular Guan Liang reinforcing bar（7）.
5. Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 1, it is characterised in that：
Steel pipe isolation pile（4）Tunnel is goed deep into bottom（3）At least 2m, steel pipe isolation pile below arch bottom（4）The stake top Guan Liang at top（6）
Top surface is concordant with earth's surface；
Steel pipe isolation pile（4）With horizontal plane angle >=30 °；
Steel pipe isolation pile（4）Longitudinal pitch be not less than 0.5m.
6. Tunnel Passing structures steel pipe isolation pile stratum consolidation system according to claim 2, it is characterised in that：
Mini-valve tube（5）Structures basement is goed deep into bottom（2）At least 3m below base plate, top is concordant with earth's surface；
Mini-valve tube（5）With horizontal plane angle >=30 °；
Mini-valve tube（5）Longitudinal pitch be not less than 0.5m.
7. the construction method of Tunnel Passing structures steel pipe isolation pile stratum consolidation system, it is characterised in that：
Comprise the following steps：
Step one：In existing buildings（1）With tunnel（3）Between measure setting-out, according to design coordinate, mark steel pipe isolation
Stake（4）With mini-valve tube（5）In earth's surface respective coordinates point position；
Step 2：Mounting and positioning device, according to design angle, using roof-bolter or other rig pore-formings, drilling diameter is slightly larger than
Steel pipe isolation pile（3）Diameter, to ensure pore-forming effect, needs strictly to control rig angle using pipe-following drilling technique, in pore forming process
Degree, it is ensured that crept into along design direction high accuracy；
Step 3：In pore forming process, steel pipe is put into according to depth of pore forming in time, every section of length of steel pipe is considered by 3~5m, steel pipe
Joint is firmly connected using screw thread, it is ensured that steel pipe bottom gos deep into tunnel（3）At least 2m below arch bottom；；After pore-forming terminates, by steel pipe
Isolation pile（3）With the space between pore-forming hole wall, backfilled using cement mortar closely knit；
Step 4：Before treating that steel pipe is placed into specified location on request, on request by the joint bar in steel pipe（9）With stirrup（10）Weldering
Overall framework of steel reinforcement is connected into, then framework of steel reinforcement is put into steel pipe, slightly expanded concrete is finally irrigated on request, formation has
The steel pipe isolation pile of certain bending rigidity（4）；
Step 5：Treat steel pipe isolation pile（4）After all implementing in place, stake top is excavated, weld U-shaped in stake top steel pipe wall site
Reinforcing bar（8）, subsequent colligation Guan Liang reinforcing bar（6）, and by U-shaped reinforcing bar（8）With Guan Liang reinforcing bar（6）Weld on request, it is mixed with after-pouring
Solidifying soil, forms Guan Liang（6）；
Step 6：According to mini-valve tube（5）Setting-out coordinate uses roof-bolter or other rig pore-formings again, and drilling diameter is slightly larger than sleeve
Valve pipe diameter, needs strictly to control rig angle in pore forming process, it is ensured that crept into along design direction high accuracy；
Step 7：After mini-valve tube pore-forming terminates, pre-buried mini-valve tube on request（5）, mini-valve tube（5）Bottom is deeply constructed by protection
Thing basement（2）At least 3m below base plate；
Step 8：During Tunnel Passing structures, according to monitoring situation, mini-valve tube is carried out in time（5）Tracking grouting, tunnel is opened
The stratum settlement that digging causes is in structures（1）The influence of bottom, is effectively made up by sleeve valve barrel grouting.
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| CN108049808A (en) * | 2017-12-07 | 2018-05-18 | 浙江省化工工程地质勘察院 | A kind of drilling drilling tool and boring method |
| CN109667276A (en) * | 2018-12-22 | 2019-04-23 | 广州市天作建筑规划设计有限公司 | A kind of karst cave treatment and tracking grouting construction method |
| CN109899085A (en) * | 2019-03-08 | 2019-06-18 | 中铁十二局集团有限公司 | The construction method on steel-pipe pile and crown beam punishment tunnel portal landslide |
| CN109944236A (en) * | 2019-03-22 | 2019-06-28 | 中国建筑第八工程局有限公司 | Root pile actively follows track delamination pour slurry system and construction method |
| CN109972668A (en) * | 2019-03-29 | 2019-07-05 | 北京市劳动保护科学研究所 | Vibration isolation barrier, preparation method and the system of building vibration caused by subway is isolated |
| CN110939127A (en) * | 2019-11-28 | 2020-03-31 | 中建四局土木工程有限公司 | Steel pipe pile construction method for protecting subway pier |
| CN111648788A (en) * | 2020-06-11 | 2020-09-11 | 中铁十四局集团大盾构工程有限公司 | Tunnel protection construction method adjacent to subway line |
| CN111997097A (en) * | 2020-09-03 | 2020-11-27 | 西南交通大学 | Composite isolation pile for tunnel side-through house and reinforcing construction method thereof |
| CN112726692A (en) * | 2020-12-17 | 2021-04-30 | 机械工业勘察设计研究院有限公司 | Multi-defense line vibration control method for ancient building |
| CN113529830A (en) * | 2021-07-05 | 2021-10-22 | 山东建筑大学 | Shallow tunnel adjacent building isolation-underpinning combined reinforcement structure and construction process thereof |
| CN113585319A (en) * | 2021-08-30 | 2021-11-02 | 中庆建设有限责任公司 | Pile foundation construction method |
| CN114293993A (en) * | 2021-12-09 | 2022-04-08 | 中国建筑第五工程局有限公司 | Vertical deformation repairing structure for construction of up-down overlapped tunnel and construction method |
| CN114482042A (en) * | 2022-03-15 | 2022-05-13 | 中铁四局集团有限公司 | Construction method of stiff composite isolation pile structure |
| CN115299275A (en) * | 2022-07-11 | 2022-11-08 | 北京市政路桥股份有限公司 | Funnel type ancient tree protection structure construction method for upper part of slope terrain tunnel |
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| CN108049808A (en) * | 2017-12-07 | 2018-05-18 | 浙江省化工工程地质勘察院 | A kind of drilling drilling tool and boring method |
| CN108049808B (en) * | 2017-12-07 | 2019-06-28 | 浙江省化工工程地质勘察院 | A kind of drilling drilling tool and boring method |
| CN109667276A (en) * | 2018-12-22 | 2019-04-23 | 广州市天作建筑规划设计有限公司 | A kind of karst cave treatment and tracking grouting construction method |
| CN109899085A (en) * | 2019-03-08 | 2019-06-18 | 中铁十二局集团有限公司 | The construction method on steel-pipe pile and crown beam punishment tunnel portal landslide |
| CN109944236A (en) * | 2019-03-22 | 2019-06-28 | 中国建筑第八工程局有限公司 | Root pile actively follows track delamination pour slurry system and construction method |
| CN109972668A (en) * | 2019-03-29 | 2019-07-05 | 北京市劳动保护科学研究所 | Vibration isolation barrier, preparation method and the system of building vibration caused by subway is isolated |
| CN110939127A (en) * | 2019-11-28 | 2020-03-31 | 中建四局土木工程有限公司 | Steel pipe pile construction method for protecting subway pier |
| CN111648788A (en) * | 2020-06-11 | 2020-09-11 | 中铁十四局集团大盾构工程有限公司 | Tunnel protection construction method adjacent to subway line |
| CN111997097A (en) * | 2020-09-03 | 2020-11-27 | 西南交通大学 | Composite isolation pile for tunnel side-through house and reinforcing construction method thereof |
| CN112726692A (en) * | 2020-12-17 | 2021-04-30 | 机械工业勘察设计研究院有限公司 | Multi-defense line vibration control method for ancient building |
| CN113529830A (en) * | 2021-07-05 | 2021-10-22 | 山东建筑大学 | Shallow tunnel adjacent building isolation-underpinning combined reinforcement structure and construction process thereof |
| CN113585319A (en) * | 2021-08-30 | 2021-11-02 | 中庆建设有限责任公司 | Pile foundation construction method |
| CN114293993A (en) * | 2021-12-09 | 2022-04-08 | 中国建筑第五工程局有限公司 | Vertical deformation repairing structure for construction of up-down overlapped tunnel and construction method |
| CN114482042A (en) * | 2022-03-15 | 2022-05-13 | 中铁四局集团有限公司 | Construction method of stiff composite isolation pile structure |
| CN115299275A (en) * | 2022-07-11 | 2022-11-08 | 北京市政路桥股份有限公司 | Funnel type ancient tree protection structure construction method for upper part of slope terrain tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106801417B (en) | 2019-11-15 |
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