CN203285457U - Bored tunnel structure with high water resistance and high air impermeability - Google Patents
Bored tunnel structure with high water resistance and high air impermeability Download PDFInfo
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- CN203285457U CN203285457U CN2013202486621U CN201320248662U CN203285457U CN 203285457 U CN203285457 U CN 203285457U CN 2013202486621 U CN2013202486621 U CN 2013202486621U CN 201320248662 U CN201320248662 U CN 201320248662U CN 203285457 U CN203285457 U CN 203285457U
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Abstract
The utility model discloses a bored tunnel structure with high water resistance and high air impermeability. The bored tunnel structure comprises a primary support and a secondary tunnel lining. The secondary tunnel lining comprises a steel bar framework composed of load-bearing steel bars and distributing steel bars, and a steel plate waterproof layer is welded on the inner surface of the secondary tunnel lining. The steel plate waterproof layer comprises a longitudinal steel plate belt, a transverse steel plate ring and a plurality of steel plate waterproof units. The longitudinal steel plate belt and the transverse steel plate ring are flush with the inner surface of the secondary tunnel lining and are welded on the steel bar framework. The steel plate waterproof units are welded on the longitudinal steel plate belt and the transverse steel plate ring. The bored tunnel structure can greatly improve the water resistance and the air impermeability of a bored tunnel and solve the problems of the water resistance and the air impermeability in the bored tunnel.
Description
Technical field
The utility model belongs to underground construction tunneling design, technical field of construction, relates in particular to a kind of waterproof and tightness concealed tunneling structure preferably.
Background technology
At present, domestic waterproof for tunnel and bubble-tight research also are in the exploratory stage, and data that can reference is less.In traditional tunnel water proofing, airtight design, for the tunnel that waterproof requirement is arranged, the method for employing is for arranging drainage systems between supporting in the early stage and Tunnel Second Lining; , for the tunnel that airtight requirement is arranged, further improve on the basis of the above the coefficient of permeability index of splash guard and the density of raising Tunnel Second Lining structure (concrete).In gas tunnel, except secondary liner structure adopts the density concrete, also introduced the gas division board to improve the tightness in tunnel.
Because drainage systems easily damages in work progress, and joint and constuction joint etc. are located the waterproof ability weakness, therefore of crucial importance or demanding underground constructions of classification of waterproof for some, as underground subway station, high ferro tunnel etc., even its highest classification of waterproof is one-level, but still can exist the wet even Seepage that steeps to occur.Draw by existing literature research: although the existing tunnel secondary liner structure adopts the density concrete, still there is the phenomenon of Leakage Gas, even add the gas tunnel of gas division board, can not isolate the effusion of gas fully, operation still need take necessary venting practice to ensure safety.
As from the foregoing, be necessary to provide a kind of and can improve bored tunnel water proofing property and bubble-tight concealed tunneling structure.
The utility model content
Goal of the invention of the present utility model is to provide a kind of high waterproof, high-air-tightness concealed tunneling structure, and it has good water proofing property and tightness.
According to embodiment of the present utility model, a kind of high waterproof, high-air-tightness concealed tunneling structure are provided, comprise preliminary bracing and Tunnel Second Lining, described Tunnel Second Lining comprises the cage of reinforcement that steel bar stress and distribution reinforcement form, the inner surface of described Tunnel Second Lining is welded with the steel plate waterproofing course, described steel plate waterproofing course comprises: vertically steel plate strip and laterally steel plate ring, described vertical steel plate strip and horizontal steel plate ring all flush with the inner surface of described Tunnel Second Lining, and are welded on described cage of reinforcement; Some steel plate waterproof unit, be welded on described vertical steel plate strip and horizontal steel plate ring.
Further, be coated with anticorrosive coat on described steel plate waterproofing course, be used for avoiding described steel plate waterproofing course to be corroded.
Further, high waterproof, high-air-tightness concealed tunneling structure also comprise:
Waterproofing course, be arranged between described preliminary bracing and described Tunnel Second Lining, and the moisture that is used for the obstruct country rock is permeated to described Tunnel Second Lining by described preliminary bracing.
Wherein, described vertical steel plate strip and horizontal steel plate ring are welded on described cage of reinforcement by dowel.
The anticorrisive agent that described anticorrosive coat is selected is wherein a kind of in polyurethane, epoxy coating, inorganic zinc rich paint, organic zinc rich paint, lead orthoplumbate rustproof paint or solvent asphalt rubber.
The thickness of described steel plate waterproof unit is 4～5mm.
Vertically the thickness of steel plate strip and horizontal steel plate ring is 1cm.
As shown from the above technical solution, high waterproof in the utility model, high-air-tightness concealed tunneling structure are at the inner surface welding steel waterproofing course in Tunnel Second Lining, because steel plate has reliable intensity and toughness, be difficult for during construction being damaged, and the steel plate internal construction is careful, therefore the steel plate layer increases the water proofing property of the concealed tunneling structure in the utility model and tightness greatly, thereby thoroughly solves waterproof and a bubble-tight difficult problem in bored tunnel.
Description of drawings
, in order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described.Apparently, the accompanying drawing in below describing is only embodiment more of the present utility model, for those of ordinary skills, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 shows the structural representation of high waterproof in the utility model, high-air-tightness concealed tunneling structure;
Fig. 2 shows the flow chart that performs concealed tunneling structure;
Fig. 3 shows vertical steel plate strip and the horizontal pre-buried schematic diagram of steel plate ring in tunnel;
Fig. 4 shows the schematic diagram of welding steel waterproof unit on vertical steel plate strip and horizontal steel plate ring.
The specific embodiment
, for making the purpose of this utility model, technical scheme and advantage clearer, referring to accompanying drawing and enumerate preferred embodiment, the utility model is further described.Yet, need to prove, many details of listing in manual are only in order to make the reader, to one or more aspects of the present utility model, a thorough understanding be arranged, even if do not have these specific details also can realize these aspects of the present utility model.
Existing bored tunnel improves water proofing property and coefficient of permeability index and the raising Tunnel Second Lining concrete density of bubble-tight method for improving splash guard between Tunnel and Tunnel Second Lining.Inner surface welding steel waterproofing course in Tunnel Second Lining and improve bored tunnel waterproof and bubble-tight method in the utility model.Because the steel plate internal construction is careful, and have reliable intensity and toughness, be difficult for during construction being damaged, so the water proofing property of the bored tunnel in the utility model and tightness increase greatly, thereby thoroughly solve bored tunnel waterproof and a bubble-tight difficult problem.
Fig. 1 shows the structural representation of high waterproof in the utility model, high-air-tightness concealed tunneling structure.As shown in Figure 1, concealed tunneling structure comprises preliminary bracing 101, Tunnel Second Lining 102 and steel plate waterproofing course 103.
Tunnel Second Lining 102 is established the reinforced concrete structure of cage of reinforcement in being.Wherein, cage of reinforcement comprises steel bar stress 104 and the distribution reinforcement 105 vertical with steel bar stress 104.Distribution reinforcement 105 is positioned at all turning points of steel bar stress 104 inboards and steel bar stress 104, and with steel bar stress 104 use thin wire colligations or weld together.
Steel plate waterproofing course 103 comprises vertical steel plate strip 1, horizontal steel plate ring 2 and some steel plate waterproof unit 3.Wherein,
Vertically steel plate strip 1 and horizontal steel plate ring 2 all flush with the inner surface of Tunnel Second Lining 102.And vertically steel plate strip 1 and horizontal steel plate ring 2 are welded on the distribution reinforcement 105 of cage of reinforcement by dowel 108.In the present embodiment, the surface that definition Tunnel Second Lining 102 contacts with preliminary bracing 101 is the external surface of Tunnel Second Lining 102, and the surface relative with Tunnel Second Lining 102 inner surfaces is defined as the inner surface of Tunnel Second Lining 102.
Steel plate waterproofing course 103 is welded on vertical steel plate strip 1 and horizontal steel plate ring 2.Steel plate waterproofing course 103 makes bored tunnel have good water proofing property and tightness.
Further, better for the durability that makes steel plate waterproofing course 103, be coated with anticorrosive coat 106 on steel plate waterproofing course 103.Wherein, the anticorrisive agent selected of anticorrosive coat 106 can be wherein a kind of in polyurethane, epoxy coating, inorganic zinc rich paint, organic zinc rich paint, lead orthoplumbate rustproof paint or solvent asphalt rubber.Perhaps anticorrosive coat 106 also can be and utilizes the hot modes such as metallic zinc or cathodic protection of spraying to form.
Further, also be provided with waterproofing course 107 between preliminary bracing 101 and Tunnel Second Lining 102, the moisture that is used for the obstruct country rock is permeated to described Tunnel Second Lining 102 by described preliminary bracing 101, thereby makes the water proofing property of bored tunnel better.
Fig. 2 shows the flow chart that performs high waterproof, high-air-tightness concealed tunneling structure.As shown in Figure 2, comprise following flow process:
S201: tunneling is also carried out preliminary bracing to the tunnel that excavates.
In the utility model, utilize Mining Method to carry out tunnel excavation.In the tunnel excavation process, the tunnel trunk that has excavated is carried out preliminary bracing.
S202: the surface at Tunnel after described preliminary bracing reaches design strength applies waterproofing course.
The waterproofing course that the surface of Tunnel applies can be spray film waterproofing course, drainage systems or has adhering waterproof sheet.
S203: Tunnel Second Lining Construction.
After waterproofing course has applied, carry out Tunnel Second Lining Construction.Wherein, Tunnel Second Lining Construction comprises the steps:
31: the cage of reinforcement of colligation Tunnel Second Lining.Cage of reinforcement comprises steel bar stress and the distribution reinforcement vertical with steel bar stress.Distribution reinforcement is positioned at all turning points of steel bar stress inboard and steel bar stress, and with steel bar stress with the thin wire colligation or weld together.
32: according to overall size in tunnel and characteristics, vertically bury vertical steel plate strip in tunnel underground, laterally bury horizontal steel plate ring underground.Fig. 3 shows vertical steel plate strip and the horizontal pre-buried schematic diagram of steel plate ring in tunnel.As shown in Figure 3, vertically steel plate strip 1 becomes some frame units with horizontal steel plate ring 2 with the surface segmentation in tunnel.Wherein, the division of framework unit should be accomplished as far as possible: unit is regular, kind is few, quantity is little.
In the utility model, vertically the thickness of steel plate strip 1 and horizontal steel plate ring 2 is preferably 1cm.
33: vertical steel plate strip and horizontal steel plate boxing are connected on the distribution reinforcement of cage of reinforcement.
For make vertical steel plate strip 1 and laterally steel plate ring 2 conveniently be welded on distribution reinforcement, vertically steel plate strip 1 and laterally steel plate ring 2 need weld dowel thereon man-hour adding.When vertical steel plate strip 1 with after laterally steel plate ring 2 is had good positioning, the other end of dowel is welded on distribution reinforcement and can realizes vertical steel plate strip 1 and be connected being connected of steel plate ring 2 and cage of reinforcement.Wherein, the welding at dowel two ends must be firm, and make after welding vertical steel plate strip 1 and laterally the external surface of steel plate ring 2 and tunnel clearance outline line at same plane.
34: set up the secondary lining template.
At vertically steel plate strip 1 and the laterally peripheral installation form chassis of steel plate ring 2, set up the secondary lining template, the secondary lining template needs closely connected with the external surface of steel plate strip and steel plate ring.
35: build the Tunnel Second Lining concrete.
To concreting in the Tunnel Second Lining cage of reinforcement between Tunnel Second Lining template and waterproofing course.
36: after the Tunnel Second Lining concrete reaches design strength, remove the secondary lining template.
S204: welding steel waterproofing course.
After the Tunnel Second Lining concrete reaches design strength, vertically welding the steel plate waterproofing course that is formed by some steel plate waterproof unit on steel plate strip 1 and horizontal steel plate ring 2.Fig. 4 shows the schematic diagram of welding steel waterproof unit on vertical steel plate strip and horizontal steel plate ring.As shown in Figure 4, steel plate waterproof unit 3 is welded on the frame unit of vertical steel plate strip 1 and horizontal 2 layers of formation of steel plate ring, after all welding upper steel plate waterproof unit 3 on each frame unit, just can form continuous steel plate waterproofing course.Wherein, the size of steel plate waterproof unit 3 is with vertically steel plate strip 1 is corresponding with the area of the frame unit of horizontal steel plate ring 2 formations, and its thickness is 4～5mm.
S205: steel plate waterproof unit weld seam detection.
Steel plate waterproof unit 3 welding is complete in time adopts the magnetic method of nondestructive inspection to detect to the weld seam between steel plate waterproof unit 3 afterwards, if find that crack in time carries out Welding Repair, until the steel plate waterproofing course meets waterproof and bubble-tight requirement.
S206: the steel plate waterproofing course is carried out preservative treatment.
In the utility model, the steel plate waterproofing course is carried out preservative treatment be included in brushing anticorrisive agent on the steel plate waterproofing course, heat spray metallic zinc or cathodic protection etc.Wherein, the anticorrisive agent of brushing can be selected wherein a kind of in polyurethane, epoxy coating, inorganic zinc rich paint, organic zinc rich paint, lead orthoplumbate rustproof paint or solvent asphalt rubber.
as known from the above, high waterproof in the utility model, the high-air-tightness concealed tunneling structure, its welding steel of inner surface in Tunnel Second Lining 102 waterproofing course 103, because steel plate has reliable intensity and toughness, be difficult for during construction being damaged, and the steel plate internal construction is careful, therefore water proofing property and the tightness of the concealed tunneling structure in the utility model improve greatly, the utility model also arranges spray film waterproofing course 107 and improves the concrete density of Tunnel Second Lining between Tunnel and Tunnel Second Lining 102 simultaneously, water proofing property and the tightness of the concealed tunneling structure in the utility model are further increased, thereby thoroughly solve waterproof and a bubble-tight difficult problem in bored tunnel.
The foregoing is only preferred embodiment of the present utility model, not be used for limiting protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a high waterproof, high-air-tightness concealed tunneling structure, comprise preliminary bracing and Tunnel Second Lining, described Tunnel Second Lining comprises the cage of reinforcement that steel bar stress and distribution reinforcement form, it is characterized in that, the inner surface of described Tunnel Second Lining is welded with the steel plate waterproofing course, and described steel plate waterproofing course comprises:
Vertically steel plate strip and laterally steel plate ring, described vertical steel plate strip and horizontal steel plate ring all flush with the inner surface of described Tunnel Second Lining, and are welded on described cage of reinforcement;
Some steel plate waterproof unit, be welded on described vertical steel plate strip and horizontal steel plate ring.
2. concealed tunneling structure according to claim 1, is characterized in that, is coated with anticorrosive coat on described steel plate waterproofing course.
3. concealed tunneling structure according to claim 1, is characterized in that, also comprises:
Waterproofing course, be arranged between described preliminary bracing and described Tunnel Second Lining, and the moisture that is used for the obstruct country rock is permeated to described Tunnel Second Lining by described preliminary bracing.
4. concealed tunneling structure according to claim 1, wherein, described vertical steel plate strip and laterally the steel plate ring be welded on described cage of reinforcement by dowel.
5. concealed tunneling structure according to claim 2, wherein, the anticorrisive agent that described anticorrosive coat is selected is wherein a kind of in polyurethane, epoxy coating, inorganic zinc rich paint, organic zinc rich paint, lead orthoplumbate rustproof paint or solvent asphalt rubber.
6. concealed tunneling structure according to claim 1, wherein, the thickness of described steel plate waterproof unit is 4～5mm.
7. concealed tunneling structure according to claim 1, wherein, vertically steel plate strip and laterally the thickness of steel plate ring be 1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202486621U CN203285457U (en) | 2013-05-09 | 2013-05-09 | Bored tunnel structure with high water resistance and high air impermeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202486621U CN203285457U (en) | 2013-05-09 | 2013-05-09 | Bored tunnel structure with high water resistance and high air impermeability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285457U true CN203285457U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202486621U Withdrawn - After Issue CN203285457U (en) | 2013-05-09 | 2013-05-09 | Bored tunnel structure with high water resistance and high air impermeability |
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| CN (1) | CN203285457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291329A (en) * | 2013-05-09 | 2013-09-11 | 中铁工程设计咨询集团有限公司 | Waterproofing and gas tightness construction method and structure for subsurface tunnel |
| CN104405420A (en) * | 2014-10-29 | 2015-03-11 | 中铁建大桥工程局集团第五工程有限公司 | Method applied to airtight and waterproof treatment of gas tunnel |
-
2013
- 2013-05-09 CN CN2013202486621U patent/CN203285457U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291329A (en) * | 2013-05-09 | 2013-09-11 | 中铁工程设计咨询集团有限公司 | Waterproofing and gas tightness construction method and structure for subsurface tunnel |
| CN104405420A (en) * | 2014-10-29 | 2015-03-11 | 中铁建大桥工程局集团第五工程有限公司 | Method applied to airtight and waterproof treatment of gas 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: 20131113 Effective date of abandoning: 20150520 |
|
| RGAV | Abandon patent right to avoid regrant |