CN2871849Y - Lane sharpening stand against side-pressure bottom drum - Google Patents
Lane sharpening stand against side-pressure bottom drum Download PDFInfo
- Publication number
- CN2871849Y CN2871849Y CN 200620069645 CN200620069645U CN2871849Y CN 2871849 Y CN2871849 Y CN 2871849Y CN 200620069645 CN200620069645 CN 200620069645 CN 200620069645 U CN200620069645 U CN 200620069645U CN 2871849 Y CN2871849 Y CN 2871849Y
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- CN
- China
- Prior art keywords
- tunnel
- floor lift
- force
- distension
- lane
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- 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.)
- Expired - Fee Related
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a tunnel cutting force support device that can withstand side pressure and floor heave when excavating and using the underground tunnel, tunnel and chamber. The device has two symmetrical reverse floor heave beams, which are connected by a movable joint in the middle, the other end of the reverse floor heave beam is close to two wall bodies and fixed on two wall bodies using a corner fixing anchor rod. The device can utilize natural force to balance natural force and counteract floor heave force and displacement force of two wall bodies to balance. The utility model has the advantages of low cost, high support efficiency and quick speed.
Description
Technical field
The utility model relates to the bracing or strutting arrangement that uses in the chambers such as a kind of tunnel, tunnel, specifically a kind of can lateral pressure resistant at the bottom of at the bottom of the lane sharpening stand of distension.
Background technology
Chamber engineerings such as underground construction tunnel, tunnel in the excavation use owing to be subjected to the effect of multiple factors such as the pressure effect of top ground and country rock self imbibition, very easily produce surrouding rock deformation, that is: the distortion inbreaks of crushing such as tunnel, tunnel, chamber, base plate is upwards heaved, two help to the displacement of center, tunnel, and the result reduces chamber cross section deformations such as tunnel.For preventing that the excessive distortion in tunnel damages in Underground Engineering Excavation and the use, in using, excavation neutralization in time apply supporting usually, and commonly used have forms such as active support, passive protecting and combined supporting.Active support is to apply metallic support, steel concrete or other form supportings around in the tunnel etc., but distension amount and two helps the excessive of deflection that support is damaged at the bottom of this kind support pattern Chang Yin; Passive protecting is to apply metal material such as anchor pole control surrouding rock deformation in country rocks such as tunnel, though the deformation energy that top board and two is helped is significantly controlled, but base plate is difficult to control effectively, and often the distension of the violent end because of base plate damages to the tunnel, influences its use; Combined supporting is the combining form of active support and passive protecting, and effect is apparent in view, but the control of end distension is still finished by the distension support of the anti-end of general structure, so distension ability of the anti-end is still relatively poor.
In sum, main to the base plate control of engineerings such as underground engineering tunnel, tunnel, chamber at present by the anti-floor lift beam on the integral support, or distension concrete of the anti-end or distension anchor pole of the anti-end etc. are controlled, engineering practice shows, Chang Yinqi unreasonable structure and end distension can not be effectively controlled makes the tunnel whole deformation failure occur.
Summary of the invention:
The purpose of this utility model just provide a kind of can lateral pressure resistant at the bottom of the lane sharpening stand of distension, to overcome the deficiencies in the prior art.
The utility model be achieved in that a kind of can lateral pressure resistant at the bottom of the lane sharpening stand of distension, it is characterized in that, two the anti-floor lift beams and the flexible connection head that is connected two anti-floor lift beams that comprise symmetrical mounting, respectively install a foundation fixing anchor bar on two anti-floor lift beams, the foundation fixing anchor bar passes the hole from anti-floor lift beam.
Using method and operating principle are:
At first chamber base plates such as tunnel, tunnel are excavated into anti-distension shape, then with about two anti-floor lift beams be put on the anti-distension that excavation is shaped, and the centre couples together with flexibly connecting head, body of wall is helped near two in the both sides of anti-floor lift beam, and with the foundation fixing anchor bar with about two anti-floor lift beams be fixed in the foundation rock.When at the bottom of tunnel, the tunnel during distension, about power upwards acted on two anti-floor lift beams.Because there is the flexible connection head centre, make anti-floor lift beam to move upward along flexibly connecting a direction, since about two anti-floor lift beams be fixed in the foundation rock by anchor pole, simultaneously, will the power of moving upward pass to two and help body of wall, and two help body of wall level of displacement power to act on the anti-floor lift beam, makes anti-floor lift beam act on base plate downwards, with the control floor lift in gallery.This kind sharpening stand can affact most of floor lift force of end distension two of engineerings such as tunnel and help, floor lift force is big more, help the active force of body of wall also big more to two, and with floor lift force affact two help after, cause and two helps the displacement force direction of body of wall opposite, offset two and helped the displacement force of body of wall, can make two to help wall stability to the centre; On the contrary, two to help the active force of body of wall to act on the base plate direction again opposite with the floor lift force direction, and the result has controlled end distension again.
The beneficial effects of the utility model are: this structure has helps the cancel out each other characteristics of balanced action of body of wall displacement with floor lift force and two, is by the elemental effective ways of natural force balance.Not only reduce the supporting expense, and had supporting efficient height, fireballing advantage.
Description of drawings
Below in conjunction with accompanying drawing the utility model is elaborated:
Fig. 1 is the lane sharpening stand structural front view of distension at the bottom of the lateral pressure resistant
Fig. 2 is the lane sharpening stand structure vertical view of distension at the bottom of the lateral pressure resistant
1 body of wall among the figure, 2 foundation fixing anchor bars, 3 left anti-floor lift beams, 4 connect movable head, 5 right anti-floor lift beams, 6 holes.
The specific embodiment
As shown in Figure 1 and Figure 2, in the middle of the anti-floor lift beam (3) of two symmetrical mountings, (5) with head (4) connection that is slidingly connected, the other end of anti-floor lift beam porose (6), corner fixing anchor bar (2) penetrates from hole (6), the corner fixing anchor bar is fixedly on the body of wall (1).When at the bottom of tunnel, the tunnel during distension, about power upwards acted on two anti-floor lift beams (3), (5).Because there is the head of flexible connection (4) centre, make anti-floor lift beam (3), (5) to move upward along flexibly connecting head (4) direction, since about two anti-floor lift beams (3), (5) be fixed in the foundation rock by anchor pole (2), simultaneously, will the power of moving upward pass to two and help body of wall (1), and two help body of wall (1) level of displacement power to act on the anti-floor lift beam (3) (5), makes anti-floor lift beam act on base plate downwards, with the control floor lift in gallery.
Claims (1)
1, the lane sharpening stand of distension at the bottom of a kind of energy lateral pressure resistant, it is characterized in that, comprise two anti-floor lift beams (3), (5) of symmetrical mounting and be connected the flexible connection head (4) of two anti-floor lift beams (3), (5), respectively install a foundation fixing anchor bar (2) on two anti-floor lift beams (3), (5), foundation fixing anchor bar (2) passes the hole (6) from anti-floor lift beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069645 CN2871849Y (en) | 2006-02-24 | 2006-02-24 | Lane sharpening stand against side-pressure bottom drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069645 CN2871849Y (en) | 2006-02-24 | 2006-02-24 | Lane sharpening stand against side-pressure bottom drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2871849Y true CN2871849Y (en) | 2007-02-21 |
Family
ID=37740195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620069645 Expired - Fee Related CN2871849Y (en) | 2006-02-24 | 2006-02-24 | Lane sharpening stand against side-pressure bottom drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2871849Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349155B (en) * | 2007-07-20 | 2011-04-13 | 河南理工大学 | Device for controlling floor heave of roadway |
| CN102797486A (en) * | 2012-08-30 | 2012-11-28 | 中国矿业大学 | Fabricated grilling anti-invert method for treating pucking |
| CN111997657A (en) * | 2020-08-04 | 2020-11-27 | 天地科技股份有限公司 | Fixed bottom angle arc-shaped frame for coal mine stoping roadway bottom plate and mounting method thereof |
-
2006
- 2006-02-24 CN CN 200620069645 patent/CN2871849Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349155B (en) * | 2007-07-20 | 2011-04-13 | 河南理工大学 | Device for controlling floor heave of roadway |
| CN102797486A (en) * | 2012-08-30 | 2012-11-28 | 中国矿业大学 | Fabricated grilling anti-invert method for treating pucking |
| CN111997657A (en) * | 2020-08-04 | 2020-11-27 | 天地科技股份有限公司 | Fixed bottom angle arc-shaped frame for coal mine stoping roadway bottom plate and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |