CN203335086U - Shield end strengthening structure - Google Patents
Shield end strengthening structure Download PDFInfo
- Publication number
- CN203335086U CN203335086U CN2013204081808U CN201320408180U CN203335086U CN 203335086 U CN203335086 U CN 203335086U CN 2013204081808 U CN2013204081808 U CN 2013204081808U CN 201320408180 U CN201320408180 U CN 201320408180U CN 203335086 U CN203335086 U CN 203335086U
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- cup
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- building envelope
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Abstract
The utility model discloses a shield end strengthening structure which comprises a building envelope arranged on the periphery of a shield reception well, wherein a strengthening body is arranged in front of the building envelope in the horizontal direction, the strengthening body is a cup-shaped body, the wall of the cup-shaped body enters the building envelope, and no clearance exists between the cup-shaped body and building envelope. According to the shield end strengthening structure, in the shield reception well, the problem that an end can not be strengthened in a horizontal strengthening mode due to an earth surface controlled building or a special environment is solved, and the cup bottom and the cup wall of the cup-shaped strengthening body, the cup wall and the reception well building envelope form a reliable enclosing structure to effectively prevent underground water from flocking in. Complementary grouting for strengthening the clearance between the shield tail and the cup wall in the shield driving process can be used as an effective method of secondary remedy.
Description
Technical field
The utility model relates to the tunnel construction technology field, refers to particularly a kind of shield end ruggedized construction.
Background technology
Shield machine is a kind of tunnel construction machinery commonly used, it is by adjusting the interior pressure realization of balance bunker and the Water And Earth Pressures balance of tunnel excavation face, and outside by conveying worm, the quarrel soil of cutting being carried and appears, shield launching, normally driving and the process such as shield structure reception are arranged, and wherein to receive the position soil stabilization be the main heavy difficult point of shield-tunneling construction to arrival.
Existing shield end is reinforced the methods that adopt the ground strengthening vertical more, specifically be exactly to adopt high-pressure rotary jet grouting pile or agitation pile or freezing vertically downward the soil body in the tunnel certain limit to be reinforced from ground, as shown in Figure 1, existing shield end ruggedized construction, it comprises the space enclosing structure 2 that is arranged on shield structure received well 1 periphery, horizontal the place ahead of space enclosing structure 2 is provided with reinforcing body 3, and this reinforcing body 3 is cubic form.
Adopt above-mentioned shield end ruggedized construction to there is following shortcoming:
1, the volume because of cubical termination ruggedized construction is larger, on earth's surface, has in controlled building or particular surroundings situation, and existing ground strengthening vertical can't be implemented.
2, existing earth's surface strengthening vertical form only depends on the pressure of high-pressure rotary jet grouting pile or agitation pile and slurries closely and space between reinforcement by connection body and space enclosing structure, once this space leakiness or occur that flaw will cause that underground water pours in, ground subsidence, construction risk is large.
3, the interim antipriming waterproof effect that structure arrives is poor, once percolating water lacks the means that secondary is remedied, constructional difficulties.
Therefore, need be improved prior art.
Summary of the invention
The purpose of this utility model is exactly the deficiency that will solve the above-mentioned background technology, and a kind of simple in structure, good water-proof effect, shield end ruggedized construction that construction risk is low are provided.
The technical solution of the utility model is: a kind of shield end ruggedized construction, it comprises the space enclosing structure that is arranged on shield structure received well periphery, horizontal the place ahead of described space enclosing structure is provided with reinforcing body, its special character is: described reinforcing body is cup shell, the wall of cup of described cup shell enters in space enclosing structure, gapless between described cup shell and space enclosing structure.
The utility model has the advantage of:
In the utility model, in shield structure received well, take the mode of horizontal reinforcing to solve and reinforce impracticable problem because of surface control building or particular surroundings termination; The cup end of cup-shaped reinforcing body and wall of cup, wall of cup and received well space enclosing structure form reliable closing structure and can effectively stop that underground water pours in; The supplementary slip casting of strengthening space between shield tail and wall of cup during shield driving can be used as the effective means that secondary is remedied.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of existing shield end ruggedized construction;
Fig. 2 is the shield end ruggedized construction schematic diagram in the utility model;
Fig. 3 is the required hole schematic diagram of cup-shaped reinforcing body in the utility model;
Fig. 4 is elevational schematic view at the bottom of cup-shaped reinforcing body cup in the utility model;
Fig. 5 is cup-shaped reinforcing body wall of cup sectional schematic diagram in utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Existing shield end ruggedized construction as shown in Figure 1 is explained in detail in background technology, in this, repeats no more.
As shown in Figure 2, a kind of shield end ruggedized construction of the present utility model, it comprises the space enclosing structure 2 that is arranged on shield structure received well 1 periphery, in horizontal the place ahead of space enclosing structure 2, is provided with reinforcing body 3, this reinforcing body 3 is cup shell, and cup-shaped reinforcing body has that volume is small and exquisite, the characteristics flexibly of constructing.The wall of cup of cup shell enters in space enclosing structure 2, gapless between cup shell and space enclosing structure, and the packing material in cup shell can be replaced according to specific requirement.
In the utility model, in shield structure received well 1, take the mode of horizontal reinforcing to solve and reinforce impracticable problem because of surface control building or particular surroundings termination, and the cup end and wall of cup, wall of cup and the received well space enclosing structure of cup-shaped reinforcing body form reliable closing structure and can effectively stop that underground water pours in, and during shield driving between reinforcement shield tail and wall of cup the supplementary slip casting in space can be used as the effective means that secondary is remedied.
When implementing:
1, as shown in Figure 3, at the pre-buried orifice tube with non retern valve 2.1 of space enclosing structure 2 side walls, orifice tube 2.1 is evenly laid along the tunnel hoop;
2, as shown in Figure 4, until 1 main structure construction of shield structure received well complete and reach design strength after, the stake of the interior enforcement inner ring of pre-buried orifice tube 2.1 horizontal jet grouting with form cup-shaped reinforcing body the cup end, construction at the bottom of the reinforcing body cup, should implement from inside to outside, in order to check the quality of a upper cyclical level rotary churning pile;
3, as shown in Figure 5, implement successively the stake of outermost layer horizontal jet grouting to form the reinforcing body wall of cup in 2.1 mouthfuls of pipes of embedded hole, jet grouting pile construction should carry out according to the sequence of construction drawn near, near rotary churning pile and space enclosing structure contact surface the time, should strengthen grouting pressure, slow down and move back the drilling speed degree, to form waterstop comparatively reliably.In case of necessity, can set up partial freezing to strengthen stagnant water effect.
In the utility model, wall of cup length is got the length that shield machine head length adds an endless tube sheet again and is advisable.The rim of a cup cross dimensions in the situation that meet the shield structure by additionally extending out 300mm, is shield synchronization slip casting and secondary grouting headspace.
In the utility model, the cup end and fully interlock of wall of cup, and cup end intensity allows the shield structure directly to cut and pass through.Cup base thickness degree is got the shield duct piece ring width, and it is concordant with the cup end to enter cup-shaped reinforcing body first ring section of jurisdiction by shield duct piece typesetting control shield structure, and this endless tube sheet should be set up injected hole.
The reinforcing body that horizontal reinforcing measure in the utility model forms can be the horizontal jet grouting stake, can be also the frost wall of freezing formation or the reinforcing body that other material forms.
Claims (1)
1. a shield end ruggedized construction, it comprises the space enclosing structure that is arranged on shield structure received well periphery, horizontal the place ahead of described space enclosing structure is provided with reinforcing body, it is characterized in that: described reinforcing body is cup shell, the wall of cup of described cup shell enters in space enclosing structure, gapless between described cup shell and space enclosing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204081808U CN203335086U (en) | 2013-07-09 | 2013-07-09 | Shield end strengthening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204081808U CN203335086U (en) | 2013-07-09 | 2013-07-09 | Shield end strengthening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335086U true CN203335086U (en) | 2013-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204081808U Expired - Lifetime CN203335086U (en) | 2013-07-09 | 2013-07-09 | Shield end strengthening structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203335086U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018842A (en) * | 2014-05-04 | 2014-09-03 | 广东水电二局股份有限公司 | Receiving structure and receiving method used when shield tunneling machine reaches tunneling end point |
| CN104314575A (en) * | 2014-08-14 | 2015-01-28 | 中国矿业大学(北京) | Strengthening method for starting and arriving end heads of shield tunnel |
| CN111677519A (en) * | 2020-07-08 | 2020-09-18 | 北京建工土木工程有限公司 | Shield starting end reinforcing structure, reinforcing method and shield starting method |
| CN111677518A (en) * | 2020-07-08 | 2020-09-18 | 北京建工土木工程有限公司 | Shield receiving end reinforcing structure, reinforcing method and shield receiving method |
| CN113187490A (en) * | 2021-04-13 | 2021-07-30 | 中国电建集团华东勘测设计研究院有限公司 | Water intake structure arranged in combination with shield machine receiving well and construction method thereof |
-
2013
- 2013-07-09 CN CN2013204081808U patent/CN203335086U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018842A (en) * | 2014-05-04 | 2014-09-03 | 广东水电二局股份有限公司 | Receiving structure and receiving method used when shield tunneling machine reaches tunneling end point |
| CN104018842B (en) * | 2014-05-04 | 2016-11-02 | 广东水电二局股份有限公司 | A kind of shield machine arrives reception structure and the method for reseptance thereof of driving terminal |
| CN104314575A (en) * | 2014-08-14 | 2015-01-28 | 中国矿业大学(北京) | Strengthening method for starting and arriving end heads of shield tunnel |
| CN111677519A (en) * | 2020-07-08 | 2020-09-18 | 北京建工土木工程有限公司 | Shield starting end reinforcing structure, reinforcing method and shield starting method |
| CN111677518A (en) * | 2020-07-08 | 2020-09-18 | 北京建工土木工程有限公司 | Shield receiving end reinforcing structure, reinforcing method and shield receiving method |
| CN111677518B (en) * | 2020-07-08 | 2022-05-13 | 北京建工土木工程有限公司 | Shield receiving end reinforcing structure, reinforcing method and shield receiving method |
| CN111677519B (en) * | 2020-07-08 | 2022-05-13 | 北京建工土木工程有限公司 | Reinforcing structure and reinforcing method for shield launching end and shield launching method |
| CN113187490A (en) * | 2021-04-13 | 2021-07-30 | 中国电建集团华东勘测设计研究院有限公司 | Water intake structure arranged in combination with shield machine receiving well and construction method thereof |
| CN113187490B (en) * | 2021-04-13 | 2024-04-02 | 中国电建集团华东勘测设计研究院有限公司 | Water intake structure combined with shield machine receiving well and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |