CN110158601A - Ruggedized construction and its reinforcement means for shield tunnel - Google Patents

Ruggedized construction and its reinforcement means for shield tunnel Download PDF

Info

Publication number
CN110158601A
CN110158601A CN201910482078.4A CN201910482078A CN110158601A CN 110158601 A CN110158601 A CN 110158601A CN 201910482078 A CN201910482078 A CN 201910482078A CN 110158601 A CN110158601 A CN 110158601A
Authority
CN
China
Prior art keywords
shield
foundation pit
guide pipe
shield tunnel
ruggedized construction
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.)
Pending
Application number
CN201910482078.4A
Other languages
Chinese (zh)
Inventor
申浩
蔡昕宸
魏泽文
王亚明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Urban Rail Transit Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd
Original Assignee
Urban Rail Transit Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Urban Rail Transit Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd filed Critical Urban Rail Transit Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd
Priority to CN201910482078.4A priority Critical patent/CN110158601A/en
Publication of CN110158601A publication Critical patent/CN110158601A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/003Injection of material
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0026Metals
    • E02D2300/0029Steel; Iron

Abstract

The invention discloses the ruggedized constructions and its reinforcement means for shield tunnel, and wherein ruggedized construction includes the row hole drilling stake being arranged at intervals in main foundation pit, and main foundation pit is divided by drilled pile has shield foundation pit and without shield foundation pit;The position that no shield foundation pit is bordering on its bottom is equipped with guiding wall, and guide pipe is embedded between two neighboring drilled pile, and one end of guide pipe is fixedly connected with guiding wall;It is equipped at intervals with pilot hole identical with guide pipe on guiding wall, has and is horizontally arranged with steel pipe in shield foundation pit, steel pipe is located at the top of shield tunnel, and one end of steel pipe is docked with guide pipe, so that slurry is through in guide pipe injection steel pipe.The present invention effectively inhibits the problem of shield tunnel floats, the safety of shield tunnel when ensure that shield excavation of foundation pit.In addition, can construct in advance not by the main structure of shield tunnel impact position, merogenesis excavation length and construction efficiency are substantially increased.

Description

Ruggedized construction and its reinforcement means for shield tunnel
Technical field
The present invention relates to shield tunnels, more particularly for the ruggedized construction and its reinforcement means of shield tunnel.
Background technique
Currently, the mode that the reinforcing of shield tunnel generallys use be from ground construction point type rotary churning pile to shield tunnel above The soil body is reinforced, but not only construction efficiency is low in this way, and due to rotary churning pile under certain geological conditions pile It is ineffective and entirety cannot be formed, so as to cause poor to the effect for inhibiting shield tunnel to float.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide the ruggedized constructions and its reinforcing for shield tunnel Method.
To achieve the above object, the invention adopts the following technical scheme: being used for the ruggedized construction of shield tunnel, including interval The row hole drilling stake being set in main foundation pit, main foundation pit is divided by the drilled pile has shield foundation pit and without shield foundation pit;It is described The position that no shield foundation pit is bordering on its bottom is equipped with guiding wall, is embedded with guide pipe, the guiding between two neighboring drilled pile One end of pipe is fixedly connected with the guiding wall;Pilot hole identical with the guide pipe, institute are equipped at intervals on the guiding wall Stated and be horizontally arranged with steel pipe in shield foundation pit, the steel pipe is located at the top of the shield tunnel, one end of the steel pipe with The guide pipe docking, so that slurry is through in guide pipe injection steel pipe.
Its further technical solution are as follows: the diameter of the drilled pile is 120cm.
Its further technical solution are as follows: the spacing distance of the two neighboring drilled pile is 100cm.
Its further technical solution are as follows: the distance between the guiding wall and no shield bottom of foundation ditch are less than 1m.
Its further technical solution are as follows: the guiding wall is I-shaped steel material.
Its further technical solution are as follows: the spacing distance of the two neighboring pilot hole is 120cm.
Its further technical solution are as follows: the length of the guide pipe be 1m, diameter 127mm,
Its further technical solution are as follows: the diameter of the steel pipe is 108mm.
A kind of reinforcement means of the above-mentioned ruggedized construction for shield tunnel, comprising:
A row hole drilling stake is applied on main foundation pit;
The earthwork without shield foundation pit side is excavated, arrives projected depth until excavating;
Two rows of guiding walls are set within the scope of 1m under the substrate of no shield foundation pit, and interval opens up guiding on guiding wall Hole;
It is embedded with guide pipe between drilled pile, and guide pipe is welded on guiding wall, and pilot hole and guide pipe phase It is logical;
Two rows of steel pipes are laterally squeezed into shield foundation pit to having by guide pipe;
The slip casting into steel pipe.
Its further technical solution are as follows: the slip casting into steel pipe, the slip casting radius are not less than 0.6m.
Compared with the prior art, the invention has the advantages that: ruggedized construction provided by the present invention for shield tunnel and Its reinforcement means, being divided into main foundation pit by drilled pile has shield foundation pit and without shield foundation pit, will be without shield excavation of foundation pit to setting Construction guidance wall after meter depth, has construction steel pipe in shield foundation pit in the horizontal direction later and carries out grouting and reinforcing, make shield tunnel The mixed reinforcement layer that steel pipe concrete stake is formed above road, to be reinforced to the soil body above shield tunnel, to effectively press down The problem of shield tunnel floats, the safety of shield tunnel when ensure that shield excavation of foundation pit are made.In addition, can construct in advance not By the main structure of shield tunnel impact position, merogenesis excavation length and construction efficiency are substantially increased.
The above description is only an overview of the technical scheme of the present invention, can in order to better understand technical measure It is implemented in accordance with the contents of the specification, and in order to make above and other objects of the present invention, feature and advantage brighter Show understandable, special below to lift preferred embodiment, detailed description are as follows.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the present invention for the ruggedized construction specific embodiment of shield tunnel;
Fig. 2 is side view of the present invention for the ruggedized construction specific embodiment of shield tunnel;
Fig. 3 is flow chart of the present invention for the reinforcement means specific embodiment of the ruggedized construction of shield tunnel.
Appended drawing reference
1, drilled pile;2, there is shield foundation pit;3, without shield foundation pit;4, it is oriented to wall;5, guide pipe;6, steel pipe.
Specific embodiment
In order to more fully understand technology contents of the invention, combined with specific embodiments below to technical solution of the present invention into One step introduction and explanation, but not limited to this.
It should be appreciated that herein, relational terms such as first and second and the like are used merely to an entity/behaviour Work/object is distinguished with another entity/operation/object, without necessarily requiring or implying these entity/operation/objects Between there are any actual relationship or orders.
It is also understood that the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, So that the process, method, article or the system that include a series of elements not only include those elements, but also including not having The other element being expressly recited, or further include for this process, method, article or the intrinsic element of system.Do not having In the case where having more limitations, the element that is limited by sentence "including a ...", it is not excluded that include the element process, There is also other identical elements in method, article or system.
As shown in Figs. 1-2, the present invention provides a kind of ruggedized constructions for shield tunnel, including are arranged at intervals at main base A row hole drilling stake 1 in hole, main foundation pit is divided by drilled pile 1 has shield foundation pit 2 and without shield foundation pit 3;No shield foundation pit 3 is bordering on The position of its bottom is equipped with guiding wall 4, is embedded with guide pipe 5, one end of guide pipe 5 and guiding between two neighboring drilled pile 1 Wall 4 is fixedly connected;It is equipped at intervals with pilot hole identical with guide pipe 5 on guiding wall 4, has in shield foundation pit 2 and is horizontally arranged with steel Pipe 6, steel pipe 6 are located at the top of shield tunnel, and one end of steel pipe 6 is docked with guide pipe 5, so that slurry injects steel through guide pipe 5 In pipe 6.
Specifically, the diameter of drilled pile 1 is 120cm.The spacing distance of two neighboring drilled pile 1 is 100cm.It is oriented to wall 4 The distance between no 3 bottom of shield foundation pit is less than 1m.Guiding wall 4 is I-shaped steel material.The interval distance of two neighboring pilot hole From for 120cm.The length of guide pipe 5 is 1m, and diameter 127mm, the diameter of steel pipe 6 is 108mm.
The present invention also provides a kind of reinforcement means of above-mentioned ruggedized construction for shield tunnel, as shown in figure 3, should Method the following steps are included:
S10, a row hole drilling stake is applied on main foundation pit;
S20, the earthwork without shield foundation pit side is excavated, arrives projected depth until excavating;
S30, two rows of guiding walls are set within the scope of 1m under the substrate of no shield foundation pit, and is spaced to open up on guiding wall and lead Xiang Kong;
S40, it is embedded with guide pipe between drilled pile, and guide pipe is welded on guiding wall, and pilot hole and guiding Pipe communicates;
S50, two rows of steel pipes are laterally squeezed into having by guide pipe in shield foundation pit;
S60, the slip casting into steel pipe.
Specifically, slip casting radius is not less than 0.6m in step S60.Slip casting radius is not less than the reason of 0.6m: due to steel Tube spacing is 1.2m, therefore when slip casting radius is not less than 0.6m just can guarantee that adjacent reinforcing scope is formed continuously entirety.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand, but not It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by of the invention Protection.Protection scope of the present invention is subject to claims.

Claims (10)

1. being used for the ruggedized construction of shield tunnel, which is characterized in that including the row hole drilling stake being arranged at intervals in main foundation pit, institute Stating drilled pile and being divided into main foundation pit has shield foundation pit and without shield foundation pit;The position that the no shield foundation pit is bordering on its bottom is equipped with It is oriented to wall, is embedded with guide pipe between two neighboring drilled pile, one end of the guide pipe is fixedly connected with the guiding wall;Institute State and be equipped at intervals with pilot hole identical with the guide pipe on guiding wall, it is described have in shield foundation pit be horizontally arranged with steel pipe, institute The top that steel pipe is located at the shield tunnel is stated, one end of the steel pipe is docked with the guide pipe, so that slurry is through guide pipe It injects in steel pipe.
2. the ruggedized construction according to claim 1 for shield tunnel, which is characterized in that the diameter of the drilled pile is 120cm。
3. the ruggedized construction according to claim 1 for shield tunnel, which is characterized in that the two neighboring drilled pile Spacing distance be 100cm.
4. the ruggedized construction according to claim 1 for shield tunnel, which is characterized in that the guiding wall and no shield The distance between bottom of foundation ditch is less than 1m.
5. the ruggedized construction according to claim 1 for shield tunnel, which is characterized in that the guiding wall is I-steel Material.
6. the ruggedized construction according to claim 1 for shield tunnel, which is characterized in that the two neighboring pilot hole Spacing distance be 120cm.
7. the ruggedized construction according to claim 1 for shield tunnel, which is characterized in that the length of the guide pipe is 1m, diameter 127mm.
8. the ruggedized construction according to claim 1 for shield tunnel, which is characterized in that the diameter of the steel pipe is 108mm。
9. the reinforcement means described in a kind of claim 1-8 any one for the ruggedized construction of shield tunnel, feature exist In, comprising:
A row hole drilling stake is applied on main foundation pit;
The earthwork without shield foundation pit side is excavated, arrives projected depth until excavating;
Two rows of guiding walls are set within the scope of 1m under the substrate of no shield foundation pit, and interval opens up pilot hole on guiding wall;
It is embedded with guide pipe between drilled pile, and guide pipe is welded on guiding wall, and pilot hole is communicated with guide pipe;
Two rows of steel pipes are laterally squeezed into shield foundation pit to having by guide pipe;
The slip casting into steel pipe.
10. the reinforcement means of the ruggedized construction according to claim 9 for shield tunnel, which is characterized in that it is described to Slip casting in steel pipe, the slip casting radius are not less than 0.6m.
CN201910482078.4A 2019-06-04 2019-06-04 Ruggedized construction and its reinforcement means for shield tunnel Pending CN110158601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910482078.4A CN110158601A (en) 2019-06-04 2019-06-04 Ruggedized construction and its reinforcement means for shield tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910482078.4A CN110158601A (en) 2019-06-04 2019-06-04 Ruggedized construction and its reinforcement means for shield tunnel

Publications (1)

Publication Number Publication Date
CN110158601A true CN110158601A (en) 2019-08-23

Family

ID=67627479

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910482078.4A Pending CN110158601A (en) 2019-06-04 2019-06-04 Ruggedized construction and its reinforcement means for shield tunnel

Country Status (1)

Country Link
CN (1) CN110158601A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113217015A (en) * 2021-05-31 2021-08-06 湖南大学 Reinforcing structure and reinforcing method for shield tunnel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202866826U (en) * 2012-10-25 2013-04-10 中铁二院工程集团有限责任公司 Shield tunnel working well outer end socket stratum reinforced structure
CN204253056U (en) * 2014-11-19 2015-04-08 北京首尔工程技术有限公司 A kind of shield machine export & import reinforcing structure
CN104806267A (en) * 2015-04-29 2015-07-29 中铁第一勘察设计院集团有限公司 Shield end socket reinforcing system of scree soil layer advance large pipe roof and construction method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202866826U (en) * 2012-10-25 2013-04-10 中铁二院工程集团有限责任公司 Shield tunnel working well outer end socket stratum reinforced structure
CN204253056U (en) * 2014-11-19 2015-04-08 北京首尔工程技术有限公司 A kind of shield machine export & import reinforcing structure
CN104806267A (en) * 2015-04-29 2015-07-29 中铁第一勘察设计院集团有限公司 Shield end socket reinforcing system of scree soil layer advance large pipe roof and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113217015A (en) * 2021-05-31 2021-08-06 湖南大学 Reinforcing structure and reinforcing method for shield tunnel

Similar Documents

Publication Publication Date Title
CN106988302B (en) A kind of high inclination-angle competent bed rotary digging pile driving construction engineering method
CN103306289B (en) Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof
CN104947690B (en) Grooving construction method for embedding underground continuous wall into rock
CN103410156B (en) Support space enclosing structure and application process thereof before a kind of recyclable vertical type steel pipe
CN102162250B (en) Protective construction method of excavating large area deep foundation pit in running sand confined water soil layer
CN101781889A (en) H-shaped waterproof curtain construction process
CN106351312A (en) Pipeline and construction method thereof
CN108532586A (en) A kind of construction method of garage parking diaphram wall
CN207878473U (en) Layer depth foundation pit hangs foot stake supporting construction to Tu Yan in combination
CN107965325A (en) Just branch bow member replaces construction method to a kind of small interval shallow tunnel
CN211500658U (en) Shallow tunnel supporting construction that nearly connects that buries suitable for sand ground
CN104762982A (en) Construction method of watery red sandstone geological underground water level control
CN104131566B (en) A kind of basement is without the construction method of horizontal support foundation ditch
CN101798823B (en) Construction method of performing remote deviation rectification by passageway method
CN203822311U (en) Advanced detection and pre-reinforcing structure for shield tunnel crossing existing station construction
CN204851266U (en) Secretly dig shaft structure directly over station
CN104074184B (en) Pile base post-grouted expanded-base bored pile
CN110158601A (en) Ruggedized construction and its reinforcement means for shield tunnel
CN111926856A (en) Tunnel entering construction method based on longitudinal anti-skid open cut tunnel structure
CN110055973A (en) Construction space foundation pit enclosure structure and water-stopping method under by high metal bridge in limited time
CN109826201A (en) A kind of weak soil foundation pit step method for protecting support
CN211256877U (en) Hydraulic engineering cut-off wall
CN104389609A (en) No-blasting mechanical digging method
CN211113598U (en) Karst cave handling system for deep foundation pit pile foundation construction in karst area
JP2014202007A (en) Earth retaining wall and construction method for the same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190823