CN202991057U - Pipe piece for a water release type tunnel lining - Google Patents
Pipe piece for a water release type tunnel lining Download PDFInfo
- Publication number
- CN202991057U CN202991057U CN 201220733293 CN201220733293U CN202991057U CN 202991057 U CN202991057 U CN 202991057U CN 201220733293 CN201220733293 CN 201220733293 CN 201220733293 U CN201220733293 U CN 201220733293U CN 202991057 U CN202991057 U CN 202991057U
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- Prior art keywords
- pipe piece
- jurisdiction
- section
- water
- self
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- Withdrawn - After Issue
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Abstract
The utility model discloses a pipe piece for a water release type tunnel lining. The pipe piece comprises a steel bar concrete pipe piece body (1), wherein one or two grouting holes or hoisting holes (1a), load-bearing steel bars (1b) and a concrete protective layer (1c) on the outer layer are arranged in the pipe piece body (1); a water stopping rubber block (2) which can expand when encounters water is pre-buried on the concrete protective layer opposite to the one or two grouting holes or hoisting holes (1a) of the pipe piece body (1); self-propelled hollow anchor rods (3) are inserted into the water stopping rubber block (2) from the one or two grouting holes or hoisting holes (1a) of the pipe piece body (1) and emerged from the concrete protective layer (1c); and water discharging holes (3a) are formed in rod walls at the outer ends of the self-propelled hollow anchor rods (3), and filtering columns (4) for filtering sand are filled in cavities of the self-propelled hollow anchor rods (3). The lining built by the pipe piece has a reliable water release function, water pressure at the periphery of a structure is well reduced, and the safety of a tunnel is guaranteed; and the pipe piece is convenient to construct, damage to the structure of the lining built by the pipe piece is low, and the building cost of the lining built by the pipe piece is low.
Description
Technical field
The utility model relates to a kind of tunnel lining and uses the section of jurisdiction.
Background technology
To Deep-buried Railway Tunnel, when adopting closed tunnel machine (TBM) construction, (lining cutting is by many endless tubes sheet is assembled longitudinally along the tunnel for corresponding assembling pipe-plate lining with it, every endless tube sheet is not waited by quantity again prefabricated reinforced concrete section of jurisdiction is formed by connecting by the hoop bolt) be all the closed lining cutting, can not draining to reduce the water pressure of structural perimeter.
Along with the development of China railways and highway tunnel, will the Deep-buried Railway Tunnel of buried depth large (200-500m) a large amount of scale long (length is greater than 10km) appear.Because it is buried greatly, ground water pressure is high, existing closed pipe-plate lining structure will be born external water pressure higher in country rock, strengthen the construction cost of pipe-plate lining.Simultaneously, ground water pressure is subjected to the impact of the uncontrollable factors such as weather, causes pipe-plate lining to have serious potential safety hazard.
The utility model content
The purpose of this utility model is to propose a kind of draining type tunnel lining use the section of jurisdiction, has reliable sluicing function, can reduce preferably the water pressure of structural perimeter with the lining cutting of this kind draining type section of jurisdiction construction, the safety in guarantee tunnel; And its easy construction, little to the pipe-plate lining structural damage, the construction cost of pipe-plate lining is low.
The technical scheme that its technical problem that solves the utility model adopts is: the section of jurisdiction is used in a kind of draining type tunnel lining, comprises the section of jurisdiction of steel concrete, the injected hole in the section of jurisdiction or hole for hoist, steel bar stress, outer field concrete cover; But and one or two injected hole of described section of jurisdiction over against the sealing blob of viscose of the pre-buried water-swellable of concrete cover; Described injected hole or hole for hoist insert the self-advancing type hollow bolt from the section of jurisdiction, pass the sealing blob of viscose, get out concrete cover, and have drain hole on the bar wall of self-advancing type hollow bolt outer end, be plugged with the Filter column for filter sand in its inner chamber.
Using method of the present utility model and principle are:
After the section of jurisdiction installs, Filter column is taken out, fill in supporting inner metal sleeve in self-advancing type hollow bolt inner chamber, make again the self-advancing type hollow bolt outwards pierce country rock (inner metal sleeve can avoid chip enters the anchor pole inner chamber by drain hole in this process), then take out inner metal sleeve, fill in Filter column; The inner with the self-advancing type hollow bolt is connected with the draining blind pipe of hoop again, and the outfall of draining blind pipe is positioned at the top of the centre drain in tunnel.
After pipe-plate lining was built up, the sealing blob of viscose of water-swellable can fill up the gap between the hollow bolt body of rod and section of jurisdiction, can prevent effectively that underground water from passing through body of rod outer wall and infiltrating tunnel inner wall.Like this, the high pressure crevice water in country rock can also can only enter the anchor pole inner chamber from the drain hole of self-advancing type hollow bolt bar wall, and flows to the inner of anchor pole by Filter column.The underground water that is advanced to each upper spare anchor rod guidance in piece section of jurisdiction by circle draining blind pipe collecting ring also will conflux to the centre drain discharge of tunnel bottom.
Compared with prior art, the beneficial effects of the utility model are:
1. the hollow bolt that passes the section of jurisdiction is introduced the draining blind pipe with the high pressure crevice water in country rock and is confluxed to centre drain and discharges; Consist of the hollow bolt on a plurality of sections of jurisdiction of encircling the section of jurisdiction, be distributed in some positions in one week of hoop, can produce the effect of full section sluicing step-down.And the tapping pipe loop is a vertical determining deviation setting along the tunnel, forms three-dimensional drainage system, and therefore, discharging capacity is strong, can well reduce the water pressure of structural perimeter, ensures the safety in tunnel; And need not strengthen the intensity of section of jurisdiction, reduced the construction cost of lining cutting.
2. the hollow bolt that passes the section of jurisdiction is introduced the draining blind pipe with crevice water in country rock, and than the mode that directly sluices in the section of jurisdiction perforate, a plug-hole difficult problem, promotion and implementation that the utility model has solved after in the TBM work progress, simultaneous grouting slurry solidifies are easy.
3. change Filter column in hollow bolt by timing, can effectively avoid fine grained plug-hole and blocked shot phenomenon, guaranteed chronicity and the validity of pipe-plate lining sluicing function.
4. water-swellable sealing blob of viscose can prevent effectively that underground water from passing through body of rod outer wall and infiltrating tunnel inner wall, has protected the tunnel outward appearance, has avoided infiltration on the electric impact that waits various device.Simultaneously, the sealing blob of viscose of water-swellable is embedded in concrete cover, on the also not impact of mechanical property of steel bar stress and whole section of jurisdiction.
5. hollow bolt is directly to utilize injected hole unnecessary on the section of jurisdiction or hole for hoist, but not redrilling separately is very little on the impact of whole section of jurisdiction mechanical property; Also make it easy to process, execute-in-place is easy.
The length that above-mentioned self-advancing type hollow bolt 3 stretches out concrete cover 1c is 2-3m; The thickness of blob of viscose 2 is 2-3cm.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the section of jurisdiction of the utility model embodiment.
Fig. 2 is the structural representation after hollow bolt is removed in the section of jurisdiction of the utility model embodiment.
Fig. 3 is that the section of the pipe-plate lining that becomes with the pipe sheet assembling of the utility model embodiment dwindles schematic diagram.
The specific embodiment
Embodiment
Fig. 1-3 illustrate, and the specific embodiment of the present utility model is that the section of jurisdiction is used in a kind of draining type tunnel lining, comprises the section of jurisdiction 1 of steel concrete, the injected hole in section of jurisdiction 1 or hole for hoist 1a, steel bar stress 1b, outer field concrete cover 1c.But one or two injected hole 1a of described section of jurisdiction 1 over against the sealing blob of viscose 2 of the pre-buried water-swellable of concrete cover 1c; 1 described injected hole or hole for hoist 1a insert self-advancing type hollow bolt 3 from the section of jurisdiction, pass sealing blob of viscose 2, get out concrete cover 1c, and have drain hole 3a on the bar wall of self-advancing type hollow bolt 3 outer ends, be plugged with the Filter column 4 for filter sand in its inner chamber.
The length that this routine self-advancing type hollow bolt 3 stretches out concrete cover 1c is 2-3m; The thickness of blob of viscose 2 is 2-3cm.
Fig. 3 illustrates, and the using method that this is routine and sluicing process are as follows:
After section of jurisdiction 1 installs, Filter column 4 is taken out, fill in supporting inner metal sleeve in self-advancing type hollow bolt 3 inner chambers, make again self-advancing type hollow bolt 3 outwards pierce country rock (inner metal sleeve can avoid chip enters the anchor pole inner chamber by drain hole in this process), then take out inner metal sleeve, again fill in Filter column 4; The inner with self-advancing type hollow bolt 3 is connected with circle draining blind pipe 5 again, and the outfall of circle draining blind pipe 5 is positioned at the top of the centre drain 6 in tunnel.
After pipe-plate lining was built up, the sealing blob of viscose of water-swellable 2 can fill up the gap of 1 of the body of rod of hollow bolt 3 and section of jurisdiction, can prevent effectively that underground water from passing through body of rod outer wall and infiltrating tunnel inner wall.Like this, the high pressure crevice water energy in country rock, also can only enter the anchor pole inner chamber from the drain hole 3a of self-advancing type hollow bolt 3 bar walls, and flow to the inner of anchor pole 3 by Filter column 4.By circle draining blind pipe 5 collecting rings to the hollow bolt 3 on each piece section of jurisdiction 1 lead into underground water, and will conflux to the centre drain 6 of tunnel bottom and discharge.
Claims (2)
1. the section of jurisdiction is used in a draining type tunnel lining, the section of jurisdiction (1) that comprises steel concrete, injected hole in section of jurisdiction (1) or hole for hoist (1a), steel bar stress (1b), outer field concrete cover (1c) is characterized in that: one or two injected hole (1a) of described section of jurisdiction (1) over against concrete cover (1c) but the sealing blob of viscose (2) of pre-buried water-swellable; Self-advancing type hollow bolt (3) is (1) described injected hole or hole for hoist (1a) insertion from the section of jurisdiction; pass sealing blob of viscose (2); get out concrete cover (1c), and have drain hole (3a) on the bar wall of self-advancing type hollow bolt (3) outer end, be plugged with the Filter column (4) for filter sand in its inner chamber.
2. the section of jurisdiction is used in a kind of draining type tunnel lining according to claim 1, it is characterized in that: the length that described self-advancing type hollow bolt (3) stretches out concrete cover (1c) is 2-3m; The thickness of blob of viscose (2) is 2-3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733293 CN202991057U (en) | 2012-12-27 | 2012-12-27 | Pipe piece for a water release type tunnel lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733293 CN202991057U (en) | 2012-12-27 | 2012-12-27 | Pipe piece for a water release type tunnel lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991057U true CN202991057U (en) | 2013-06-12 |
Family
ID=48562247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220733293 Withdrawn - After Issue CN202991057U (en) | 2012-12-27 | 2012-12-27 | Pipe piece for a water release type tunnel lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979535A (en) * | 2012-12-27 | 2013-03-20 | 西南交通大学 | Drain-type pipe piece for tunnel lining |
| CN105971635A (en) * | 2016-06-22 | 2016-09-28 | 余航 | Pipe for tunnel |
-
2012
- 2012-12-27 CN CN 201220733293 patent/CN202991057U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979535A (en) * | 2012-12-27 | 2013-03-20 | 西南交通大学 | Drain-type pipe piece for tunnel lining |
| CN102979535B (en) * | 2012-12-27 | 2015-12-02 | 西南交通大学 | Draining type section of jurisdiction is used in a kind of tunnel lining |
| CN105971635A (en) * | 2016-06-22 | 2016-09-28 | 余航 | Pipe for tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |