CN204920983U - Pipe installation suitable for collapsible loess tunnel advance support - Google Patents
Pipe installation suitable for collapsible loess tunnel advance support Download PDFInfo
- Publication number
- CN204920983U CN204920983U CN201520456614.0U CN201520456614U CN204920983U CN 204920983 U CN204920983 U CN 204920983U CN 201520456614 U CN201520456614 U CN 201520456614U CN 204920983 U CN204920983 U CN 204920983U
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- slip casting
- grouting pipe
- pipe
- casting pipe
- scale
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Abstract
The utility model discloses a pipe installation suitable for collapsible loess tunnel advance support, including the support of arch steelframe, on supporting, the arch steelframe is equipped with the concrete placement layer, and the concrete placement in situ is equipped with arch keel frame, and arch keel frame is connected with the slip casting pipe through the spliced pole, and the slip casting pipe includes small -size slip casting pipe and large -scale slip casting pipe, and one side of small -size slip casting pipe and large -scale slip casting pipe is passed to spliced pole one end, and small -size slip casting pipe and large -scale slip casting pipe interval set up. The utility model discloses a slip casting method that big ductule interval set up, to packing, solidify in hole, the gap in tunnel solution -cavity filling district, for the tunnel becomes to encircle, the condition that provides that is difficult for caving in, keel frame sets up the fastness of having strengthened overall structure, and one side of small -size slip casting pipe and large -scale slip casting pipe is passed to connecting rod one end simultaneously for connection structure is more firm.
Description
Technical field
The utility model relates to a kind of suspension device, is specifically related to a kind of pipe guide being applicable to collapsible loess tunnel advance support.
Background technology
Karst is geologic process and the phenomenon of a kind of uniqueness of growing in carbonate solublerock distributed area, and the distribution of China Karst landforms is wide, area is large, and therefore highway tunnel construction unavoidably will pass through karst area.The tunnel, the Xi Mage village of speedway Baoding, such as Zhangjiakou to Zhuozhou section LJ-S4 contract section is positioned at the low mountain zone in Taihang Mountain, it passes through stratum, district and is mainly in Paleozoic group Cambrian system group stratum, Fengshan of uniting, principal lithologic is limestone, joint, crack are comparatively grown, and karst extensively distributes and in stratiform and beading uneven distribution, connectedness is good, in half charges shape, charges are limestone gravel and sandy soil mainly, and water outlet form in tunnel is based on humidity and drips, and may occur rainy season drenching stream.Common support apparatus is exactly support with arch girder steel the tunnel excavated, between the neighboring and crag of arch support, set up one deck steel mesh reinforcement, concrete perfusion between the gap between girder steel support with crag.But, due to the geology characteristic of big cross section karst, very easily produce in work progress and cave in and roof fall.
Utility model content
For solving the problem, the utility model provides a kind of pipe guide being applicable to collapsible loess tunnel advance support.
For achieving the above object, the technical scheme that the utility model is taked is:
A kind of pipe guide being applicable to collapsible loess tunnel advance support, comprise arch-shaped steel frame to support, arch-shaped steel frame supports and is provided with concrete lift, arch keel shoe is provided with in concrete lift, arch keel shoe is connected with grouting pipe by joint pin, grouting pipe comprises small-sized grouting pipe and large-scale grouting pipe, and the side of small-sized grouting pipe and large-scale grouting pipe is passed in joint pin one end, and small-sized grouting pipe and large-scale grouting pipe interval are arranged.
As preferably, described small-sized grouting pipe and large-scale grouting pipe all adopt hot rolled seamless steel tube, and arrange injected hole along pipe shaft circumference interval, steel pipe leading section is coniform, and afterbody is welded with reinforcing rib.
The utility model has following beneficial effect:
Adopt the spaced grouting method of large ductule, the hole in tunnel solution-cavity filling district, gap are filled, consolidation, for tunnel arching, not easily cave in and provide condition, the setting of keel shoe strengthens integrally-built fastness, the side of small-sized grouting pipe and large-scale grouting pipe is passed in connecting rod one end simultaneously, makes syndeton more firm.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Detailed description of the invention
In order to make the purpose of this utility model and advantage clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of pipe guide being applicable to collapsible loess tunnel advance support, comprise arch-shaped steel frame and support 1, arch-shaped steel frame supports 1 and is provided with concrete lift 2, arch keel shoe 6 is provided with in concrete lift 2, arch keel shoe 6 is connected with grouting pipe by joint pin 3, grouting pipe comprises small-sized grouting pipe 4 and large-scale grouting pipe 5, the side of small-sized grouting pipe 4 and large-scale grouting pipe 5 is passed in joint pin 3 one end, and small-sized grouting pipe 4 and large-scale grouting pipe 5 interval are arranged.
Described small-sized grouting pipe 4 and large-scale grouting pipe 5 all adopt hot rolled seamless steel tube, and arrange injected hole along pipe shaft circumference interval, steel pipe leading section is coniform, and afterbody is welded with reinforcing rib.
Wherein, between adjacent two joint pins 3, be provided with reinforcing rib, joint pin 3 one end and keel shoe affixed, the other end is provided with external screw thread.
This concrete enforcement adopts the spaced grouting method of large ductule, the hole in tunnel solution-cavity filling district, gap are filled, consolidation, for tunnel arching, not easily cave in and provide condition, the setting of keel shoe strengthens integrally-built fastness, the side of small-sized grouting pipe 4 and large-scale grouting pipe 5 is passed in connecting rod one end simultaneously, makes syndeton more firm.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. one kind is applicable to the pipe guide of collapsible loess tunnel advance support, it is characterized in that, comprise arch-shaped steel frame and support (1), arch-shaped steel frame supports (1) and is provided with concrete lift (2), arch keel shoe (6) is provided with in concrete lift (2), arch keel shoe (6) is connected with grouting pipe by joint pin (3), grouting pipe comprises small-sized grouting pipe (4) and large-scale grouting pipe (5), the side of small-sized grouting pipe (4) and large-scale grouting pipe (5) is passed in joint pin (3) one end, small-sized grouting pipe (4) and large-scale grouting pipe (5) interval are arranged.
2. a kind of pipe guide being applicable to collapsible loess tunnel advance support according to claim 1, it is characterized in that, described small-sized grouting pipe (4) and large-scale grouting pipe (5) all adopt hot rolled seamless steel tube, along pipe shaft circumference interval, injected hole is set, steel pipe leading section is coniform, and afterbody is welded with reinforcing rib;
Wherein, the distance between described small-sized grouting pipe (4) and large-scale grouting pipe (5) can adjust as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456614.0U CN204920983U (en) | 2015-06-26 | 2015-06-26 | Pipe installation suitable for collapsible loess tunnel advance support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456614.0U CN204920983U (en) | 2015-06-26 | 2015-06-26 | Pipe installation suitable for collapsible loess tunnel advance support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204920983U true CN204920983U (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520456614.0U Expired - Fee Related CN204920983U (en) | 2015-06-26 | 2015-06-26 | Pipe installation suitable for collapsible loess tunnel advance support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204920983U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917627A (en) * | 2017-03-24 | 2017-07-04 | 中建交通建设集团有限公司 | The advanced support method of pilot tunnel under a kind of water rich strata boring construction |
| CN108590713A (en) * | 2018-06-12 | 2018-09-28 | 北京市政路桥股份有限公司 | A kind of Tunnel Passing cavity canopy protection structure and method for protecting support |
| 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 |
-
2015
- 2015-06-26 CN CN201520456614.0U patent/CN204920983U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917627A (en) * | 2017-03-24 | 2017-07-04 | 中建交通建设集团有限公司 | The advanced support method of pilot tunnel under a kind of water rich strata boring construction |
| CN108590713A (en) * | 2018-06-12 | 2018-09-28 | 北京市政路桥股份有限公司 | A kind of Tunnel Passing cavity canopy protection structure and method for protecting support |
| CN108590713B (en) * | 2018-06-12 | 2024-05-14 | 北京市政路桥股份有限公司 | Tunnel crossing cavity canopy protection structure and supporting method |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160626 |