CN201071726Y - Advanced double-row slip casting ductule device - Google Patents
Advanced double-row slip casting ductule device Download PDFInfo
- Publication number
- CN201071726Y CN201071726Y CNU2007201901123U CN200720190112U CN201071726Y CN 201071726 Y CN201071726 Y CN 201071726Y CN U2007201901123 U CNU2007201901123 U CN U2007201901123U CN 200720190112 U CN200720190112 U CN 200720190112U CN 201071726 Y CN201071726 Y CN 201071726Y
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- ductule
- row
- steel grating
- double
- slip casting
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Abstract
The utility model is related to a small pipe device of a lead double-row grouting, comprising double-row small pipes and a steel grid, each row of small pipes presents three-dimensional parallel arrangement with equal interval, and rear end parts of small pipes are fixedly connected with the steel grid; the steel grid is an arch-shaped frame structure, the obliquity of arc surface constituted by the small pipe first row and the steel grid contour line is 7-10 degrees, and a dip angle of arc surface constituted by the small pipe second row and the steel grid contour line is 30 - 60 degrees; a circumferential interval between small pipes is 0.3 - 0.4 m. The utility model has the advantages that aiming at undercut tunnel with large fractured surface, particularly when crossing bottom parts of buildings, the tunnel arch part is in strata such as unbonded sand bed with poor self-stability and grit (gravel) layer etc, construction of double-row grouting small pipe device on the strata can conduct complete reinforcement to the strata, and a second layer of cushion shell body on the basis of original reinforced shell body is formed, so as to further slow down or avoid strata settlement after damage and breakdown of construction of buildings.
Description
Technical field
The utility model relates to a kind of slip casting ductule device, is meant a kind of advanced double rows slip casting ductule device especially.It is applicable to big section bored tunnel as the anti-heavy supplementary means of subsiding of construction, and especially passing through building bottom, arch, tunnel are in does not have bonding, from stratum such as the layer of sand of steady power difference and gravel (ovum) stone layers.
Background technology
In the existing leading ductule device, ductule selects for use Φ 32 water gas pipes to make, and its length is controlled at 2～3m, adopts that single circumferential distance generally is not more than 400mm along the tunnel perimeter laying, and the extrapolation angle is controlled in 10～15 °.Its shortcoming is at big section bored tunnel, when passing through building bottoms and reply arch, tunnel and being in stratum such as the layer of sand that do not have bonding, self-stable ability difference and gravel (ovum) stone layer, because individual layer is reinforced, consolidation effect to the stratum is relatively poor, sedimentation is difficult to control, if the reinforcing housing reaches design effect major accident will not take place.
Summary of the invention
It is a kind of at big section bored tunnel that the purpose of this utility model is to provide, in the time of especially bottom the passing through building, as the advanced double rows slip casting ductule device of reinforcing usefulness.Use double reinforcing, can on the basis that reinforces, slow down foundation settlement, on arrange and stressed row down slowed down pressure, prevent to cave in thereby reach, guarantee the effect of safety.
The utility model is realized by following technical scheme, it is made up of double ductule and steel grating, double ductule is set on the steel grating, every row's ductule is equidistant solid by many sizes, ductule that shape is identical and is arranged in parallel, and the rear end part of every row's ductule is all affixed with steel grating; Steel grating is a gantry configuration, and its outline line is identical with the tunnel excavation outline line; It is 7 °～10 ° that first row's ductule and steel grating outline line constitute the cambered surface inclination angle, and it is 30 °～60 ° that second row's ductule and steel grating outline line constitute the cambered surface inclination angle; Circumferential distance is 0.3m～0.4m between the ductule.
The be provided with scope of double ductule on steel grating is 150 ° of angles of symmetrical centre with the steel grating center line.
Ductule adopts the seamless steel pipe of diameter 25～40mm, wall thickness 5～9mm, and length is 2.25～3.5m, visual stratum different mining different size.
The ductule front end is the coniform of 200～300mm length, and the not perforate of 1000mm of distance rear end (rear end part and steel grating are affixed), remainder is along the quincunx slurry hole of overflowing that is provided with of tube wall interval 200mm.With double rows slip casting ductule in accordance with regulations angle squeeze into the stratum, during slip casting, slurries overflow from the slurry hole of overflowing, and infiltrate in the stratum, reach the purpose of strengthening stratum in ductule.
The utility model has the advantages that: the advanced double rows slip casting ductule device is at big section bored tunnel, when especially passing through building bottom, arch, tunnel are in stratum such as the layer of sand that do not have bonding, self-stable ability difference and gravel (ovum) stone layer, the stratum is set the different double rows slip casting ductule device of angle, can reinforce the stratum comprehensively, compare with traditional slip casting ductule, on the basis of original reinforcing housing, form second layer bumper housing, further slow down or avoid the sedimentation behind the ground damage layer and the damage of building.
Description of drawings
Fig. 1 is provided with perspective view for double ductule longitudinal section;
Fig. 2 is an advanced double rows slip casting ductule device cross-sectional configuration schematic diagram;
Fig. 3 is the A-A sectional drawing of Fig. 2;
Fig. 4 is the ductule structural representation;
Among the figure: 1. first arrange ductule, 2. second arrange ductule, 3. steel grating 4. overflows and starches the hole.
The specific embodiment
The described advanced double rows slip casting ductule device of present embodiment, as shown in Figure 1 and Figure 2, double ductule is set on the steel grating 3, and every row's ductule is equidistant solid by many sizes, ductule that shape is identical and is arranged in parallel, and the rear end part of every row's ductule is all affixed with steel grating 3; Steel grating 3 is a gantry configuration, and its outline line is identical with the tunnel excavation outline line, and it is 7～10 ° that first row's ductule 1 constitutes the cambered surface inclination angle with steel grating 3 outline lines, and it is 30～60 ° that second row's ductule 2 constitutes the cambered surface inclination angle with steel grating 3 outline lines; Circumferential distance between the ductule is 0.3～0.4m.
The be provided with scope of double ductule on steel grating 3 is 150 ° of angles of symmetrical centre with the steel grating center line.
Ductule adopts the seamless steel pipe of diameter 25～40mm, wall thickness 5～9mm, and length is 2.25～3.5m, visual stratum different mining different size.
As shown in Figure 4, the ductule front end is the coniform of 200～300mm length, and in the not perforate of 1000mm of distance rear end, remainder is along the quincunx slurry hole 4 of overflowing that is provided with of tube wall interval 200mm.
As shown in Figure 3, the frame construction of steel grating 3 is a prior art, and every row's ductule is divided into spot welding with steel grating 3 Fixed Divisions and is connected.
During tunneling, steel grating is pressed tunnel excavation outline line size and is made, and with the rear end part and the steel grating welding of double rows slip casting ductule, when slip casting in ductule, slurries overflow from the slurry hole of overflowing, and infiltrate in the stratum, reach the purpose of double-deck strengthening stratum.Usually double rows slip casting ductule needs many Pin (a steel lattice coral is a Pin) are installed in construction, thus should guarantee that last time slip casting ductule did not excavate more than the part of horizontal length 1.0m, more than the front and back conduit overlap joint 1.0m.
Claims (4)
1. advanced double rows slip casting ductule device, it is characterized in that: it is made up of double ductule and steel grating (3), steel grating is provided with double ductule on (3), every row's ductule is equidistant solid by many sizes, ductule that shape is identical and is arranged in parallel, and the rear end part of every row's ductule is all affixed with steel grating (3); Steel grating (3) is a gantry configuration, its outline line is identical with the tunnel excavation outline line, it is 7～10 ° that first row's ductule (1) constitutes the cambered surface inclination angle with steel grating (3) outline line, and it is 30～60 ° that second row's ductule (2) constitutes the cambered surface inclination angle with steel grating (3) outline line; Circumferential distance is 0.3～0.4m between the ductule.
2. advanced double rows slip casting ductule device as claimed in claim 1 is characterized in that: the be provided with scope of double ductule on steel grating (3) is 150 ° of angles of symmetrical centre with the steel grating center line.
3. advanced double rows slip casting ductule device as claimed in claim 1 is characterized in that: ductule adopts the seamless steel pipe of diameter 25～40mm, wall thickness 5～9mm, and length is 2.25～3.5m.
4. advanced double rows slip casting ductule device as claimed in claim 1 or 2 is characterized in that: the ductule front end is the coniform of 200～300mm length, and in the not perforate of 1000mm of distance rear end, remainder is along the quincunx slurry hole (4) of overflowing that is provided with of tube wall interval 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201901123U CN201071726Y (en) | 2007-11-12 | 2007-11-12 | Advanced double-row slip casting ductule device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201901123U CN201071726Y (en) | 2007-11-12 | 2007-11-12 | Advanced double-row slip casting ductule device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201071726Y true CN201071726Y (en) | 2008-06-11 |
Family
ID=39550284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201901123U Expired - Fee Related CN201071726Y (en) | 2007-11-12 | 2007-11-12 | Advanced double-row slip casting ductule device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201071726Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161477A (en) * | 2013-02-04 | 2013-06-19 | 陕西煤业化工建设（集团）有限公司 | Sand layer space forepoling strengthening technology |
| CN109538236A (en) * | 2018-12-07 | 2019-03-29 | 中铁十局集团有限公司 | A kind of tunnel structure and tunnel construction method |
-
2007
- 2007-11-12 CN CNU2007201901123U patent/CN201071726Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161477A (en) * | 2013-02-04 | 2013-06-19 | 陕西煤业化工建设（集团）有限公司 | Sand layer space forepoling strengthening technology |
| CN109538236A (en) * | 2018-12-07 | 2019-03-29 | 中铁十局集团有限公司 | A kind of tunnel structure and tunnel construction method |
| CN109538236B (en) * | 2018-12-07 | 2024-04-02 | 中铁十局集团有限公司 | Tunnel entering structure and tunnel entering construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20131112 |