CN109209433B - pre-embedding method of segment sealing gasket - Google Patents
pre-embedding method of segment sealing gasket Download PDFInfo
- Publication number
- CN109209433B CN109209433B CN201811283471.2A CN201811283471A CN109209433B CN 109209433 B CN109209433 B CN 109209433B CN 201811283471 A CN201811283471 A CN 201811283471A CN 109209433 B CN109209433 B CN 109209433B
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- sealing gasket
- embedding
- duct piece
- concrete
- caulking groove
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
Abstract
The invention relates to a method for embedding a sealing gasket of a pipe sheet, which comprises the following steps: providing a duct piece steel die, wherein an embedding groove is formed in the surface of the duct piece steel die, and a through hole is formed in the bottom surface of the embedding groove; providing an adsorption device and a sealing gasket, penetrating the adsorption device into the through hole, partially placing the sealing gasket into the caulking groove, enabling the rest part of the sealing gasket to protrude out of the surface of the duct piece steel die, enabling the sealing gasket to be attached to the surface opposite to the adsorption device, and applying adsorption force to the sealing gasket through the adsorption device to enable the sealing gasket to be fixed in the caulking groove; enclose the section of jurisdiction steel mould into the space of pouring of section of jurisdiction to concreting in the space of pouring, making sealed pad protrusion bury in the concrete in the part on section of jurisdiction steel mould surface, treat that the concrete solidifies the back, demolish the section of jurisdiction steel mould, sealed pad is pre-buried in the section of jurisdiction promptly. According to the invention, the sealing gasket is fixed in an embedded manner through the steps, so that the step of sticking is omitted, and the construction efficiency is high.
Description
Technical Field
the invention relates to the technical field of tunnel construction, in particular to a method for pre-embedding a tube sheet sealing gasket.
Background
generally, the main water seepage channel for water seepage at the joint of the pipe piece is water seepage through the contact surface of the pipe piece and the sealing gasket. Traditional segment sealing gasket, chinese antecedent patent CN205078287U for example, is to fix the sealing gasket on the segment by means of pasting after the segment is produced, however, pasting construction steps are cumbersome, and the situation of water seepage is easy to occur if the pasting tightness is not good.
disclosure of Invention
the invention aims to overcome the defects of the prior art and provides a method for embedding a tube sheet sealing gasket, which can solve the problem that the traditional adhesive sealing gasket is easy to seep water.
the technical scheme for realizing the purpose is as follows:
The invention provides a method for embedding a sealing gasket of a pipe sheet, which comprises the following steps:
Providing a duct piece steel die, wherein an embedding groove is formed in the surface of the duct piece steel die, and a through hole is formed in the bottom surface of the embedding groove;
providing an adsorption device and a sealing gasket, penetrating the adsorption device through the through hole, partially placing the sealing gasket in the caulking groove, enabling the rest part of the sealing gasket to protrude out of the surface of the duct piece steel die, enabling the sealing gasket to be attached to the surface opposite to the adsorption device, and applying adsorption force to the sealing gasket through the adsorption device to enable the sealing gasket to be fixed in the caulking groove;
the method comprises the steps of enclosing a duct piece steel die into a pouring space of the duct piece, pouring concrete in the pouring space, enabling the part, protruding out of the surface of the duct piece steel die, of the sealing gasket to be buried in the concrete, removing the duct piece steel die after the concrete is solidified, and enabling the sealing gasket to be buried in the duct piece in a pre-buried mode.
The invention has the beneficial effects that the caulking groove is formed on the duct piece steel die, the sealing gasket is adsorbed in the caulking groove through an adsorption device penetrating through the duct piece steel die, the sealing gasket is fixed in a pre-embedded mode, the step of pasting is omitted, and the construction efficiency is high.
The invention further improves the embedding method of the segment sealing gasket, wherein the adsorption device comprises a vacuum-pumping tube and a vacuum pump, and the embedding method further comprises the following steps:
one end of the vacuumizing pipe is arranged in the through hole in a penetrating mode, and the vacuum pump is connected to the other end of the vacuumizing pipe;
And starting the vacuum pump, and pumping air in the vacuum pumping pipe away by using the vacuum pump, so that the vacuum pumping pipe generates adsorption force on the sealing gasket to fix the sealing gasket in the caulking groove.
the invention further improves the embedding method of the segment sealing gasket, wherein the vacuum-pumping pipe comprises an adsorption pipe positioned at the end part, and the embedding method also comprises the following steps:
A sucker structure is arranged at one end of the adsorption tube;
Will the adsorption tube wear to locate in the through-hole and with the section of jurisdiction steel mould is fixed, and makes sucker structure corresponds the caulking groove sets up, makes the gasket portion arrange in back in the caulking groove, sucker structure paste in the surface of sealed pad.
The invention further improves the embedding method of the segment sealing gasket, and a corrugated structure attached to the surface of the sealing gasket is formed at the edge of the sucker structure.
The invention further improves the embedding method of the segment sealing gasket, wherein the diameter of the sucker structure is gradually increased along with the approach of the segment sealing gasket, and the embedding method further comprises the following steps:
The utility model discloses a suction tube, including suction tube, suction disc structure, suction tube, nut, the suction tube is kept away from the surface of the one end of suction disc structure sets up the screw thread the suction tube is worn to locate behind the through-hole, with the nut spiro union in the suction tube and screw until the nut support to lean on in the section of jurisdiction steel mould is kept away from one side of caulking groove, and suction disc structure along with the nut is screwed and is supported to lean on in the section of jurisdiction steel mould is located one side of caulking groove bottom surface, thereby will the suction tube with the section of jurisdiction steel mould.
The invention further improves the embedding method of the segment sealing gasket, wherein the adsorption pipe comprises a first pipe joint and a second pipe joint, and the embedding method further comprises the following steps:
a circle of clamping grooves are formed in the inner surface of the first pipe joint;
And arranging a circle of clamping bulges on the outer surface of the second pipe joint corresponding to the clamping groove, and inserting the second pipe joint into the first pipe joint to clamp the clamping bulges in the clamping groove.
The invention further improves the embedding method of the segment sealing gasket, wherein the vacuum tube also comprises a hose connected with the adsorption tube, and the embedding method also comprises the following steps:
Connecting one end of the hose to the end part of the adsorption pipe far away from the sucker structure, and connecting the other end of the hose to the vacuum pump;
And providing an air valve, wherein the air valve is arranged in the middle of the hose.
The invention further improves the embedding method of the segment sealing gasket, and also comprises the following steps:
In the sealing gasket is correspondingly located the notch department of caulking groove sets up two and ends thick liquid portions, will sealing gasket part is arranged in during the caulking groove, end the surface of thick liquid portion with the surface laminating of section of jurisdiction steel mould to realized blockking that the concrete that pours the section of jurisdiction gets into in the caulking groove.
The invention further improves the embedding method of the segment sealing gasket, and also comprises the following steps:
The part of the sealing gasket protruding out of the surface of the duct piece steel die is provided with at least two convex anchor angle structures, and when concrete is poured, the anchor angle structures are embedded in the concrete, so that a contact surface between the embedded part and the duct piece is a non-straight surface.
The invention further improves the embedding method of the segment sealing gasket, and also comprises the following steps:
The anchor angle structure is obliquely arranged close to the surface of the intrados of the duct piece, so that the part, far away from the duct piece steel die, of the anchor angle structure is close to the extrados of the duct piece;
After concrete is poured, the concrete is vibrated, so that bubbles in the concrete float upwards and are discharged along the surface of the anchor angle structure, which is close to the intrados of the duct piece.
Drawings
Fig. 1 is a schematic view of the segment gasket of the present invention adsorbed to a segment steel die by an adsorption device.
Fig. 2 is a schematic view of the adsorption tube of the present invention inserted into a tube sheet steel die.
Fig. 3 is a schematic structural view of a first pipe joint according to the present invention.
fig. 4 is a schematic structural view of a second pipe joint according to the present invention.
Fig. 5 is a schematic cross-sectional view of a segment gasket of the present invention.
FIG. 6 is a schematic illustration of the pouring and vibrating of concrete in the present invention.
FIG. 7 is a schematic view of the application of a pair of gaskets during segment splicing.
description of reference numerals:
41-a sorbent tube; 411-a suction cup structure; 412-a corrugated structure; 413-threads; 414-a nut; 415-a card slot; 416-snap; 417-limit projection; 42-a vacuum pump; 43-air valve; 44-a hose; 441-hose connection;
10-a seal gasket; 11-an insert; 111-a faying surface; 112-a boss; 12-pre-embedding part; 121-anchor angle configuration; 122-a guide surface; 123-water stopping surface; 124-transition surface; 13-a pulp stop part; 131-starch stopping surface;
20-a pipe sheet steel die; 21-a limiting structure;
30-a segment; 31-concrete; 311-bubbles.
Detailed Description
the invention is further described with reference to the following figures and specific examples.
referring to fig. 1 to 7, the present invention provides a method for embedding a gasket of a pipe sheet, which can improve the construction efficiency and prevent water from leaking, thereby solving the problem that the conventional adhesive gasket is prone to water leakage. The segment gasket 10 of the present invention is a full-length rubber gasket, which is disposed along the circumferential and/or longitudinal seams of the segment 30, and is used to prevent water leakage at the circumferential and/or longitudinal seams of the segment. In fig. 7, the upper surface of the segment 30 is the outer arc surface, which is the surface of the segment that is close to the soil body after installation. For simplicity of description, the following will be referred to by "upper" as the direction approaching the extrados of the segment and "lower" as the direction approaching the intrados of the segment. The method for embedding the segment sealing gasket according to the present invention will be described below with reference to the accompanying drawings.
The pre-burying method of the segment sealing gasket comprises the following steps:
as shown in fig. 1, a segment die 20 is provided, and a caulking groove is formed on the surface of the segment die 20, and a through hole penetrating the segment die 20 is formed on the bottom surface of the caulking groove.
Providing an adsorption device and a sealing gasket 10, penetrating the adsorption device into the through hole, partially placing the sealing gasket 10 into the caulking groove, enabling the rest part of the sealing gasket 10 to protrude out of the surface of the duct piece steel die 20, and enabling the sealing gasket 10 to be attached to the surface opposite to the adsorption device.
specifically, the adsorption device includes an evacuation tube and a vacuum pump 42, one end of the evacuation tube is inserted into the through hole, and the vacuum pump 42 is connected to the other end of the evacuation tube.
wherein, as shown in fig. 2, the evacuation tube includes a suction tube 41 at the end. A suction cup structure 411 is disposed at one end of the suction pipe 41, and the diameter of the suction cup structure 41 gradually increases as it approaches the sealing pad. The adsorption tube 41 is inserted into the through hole and fixed with the duct piece steel die 20, and the suction cup structure 411 is arranged corresponding to the caulking groove, so that after the sealing gasket 10 is partially arranged in the caulking groove, the suction cup structure 411 is attached to the surface of the sealing gasket 10. The area of the adsorption device for adsorbing the sealing gasket 10 is increased through the arrangement of the sucker structure 411, so that the sealing gasket 10 can be better adsorbed.
preferably, the shape of the through hole is matched with the shape of the suction tube 41, and one side of the through hole near the caulking groove is formed in a funnel shape corresponding to the suction cup structure 411.
The edge of the suction cup structure 411 is formed with a corrugated structure 412 attached to the surface of the gasket 10. The corrugated structure 412 enables the contact position of the sucker structure 411 and the sealing gasket 10 to have certain flexibility, so that the sealing performance of the contact position of the adsorption device and the sealing gasket 10 is ensured, and the sealing gasket 10 can be better adsorbed.
The outer surface of the end of the suction pipe 41 away from the suction cup structure 411 is provided with a thread 414, and after the suction pipe 41 is inserted into the through hole, a nut 414 is screwed on the suction pipe 41. Since the diameter of the nut 414 is larger than that of the through hole, the nut 414 is tightened so that the nut abuts against the surface of the segment steel die 20, and since the diameter of the suction cup structure 411 is gradually increased as approaching the caulking groove, the suction cup structure 411 abuts against one side of the segment steel die 20 on the bottom surface of the caulking groove as the nut 414 is tightened. The suction pipe 41 is fixed to the segment steel mold 20 by abutting the suction cup structure 411 and the nut 414 against both sides of the segment steel mold.
Further, as shown in fig. 3 and 4, the adsorption pipe 41 includes a first pipe section and a second pipe section. The pre-burying method further comprises the following steps: the inner surface of the first pipe joint is provided with a circle of clamping grooves 415, the outer surface of the second pipe joint is provided with a circle of clamping protrusions 416 corresponding to the clamping grooves 415, the second pipe joint is inserted into the first pipe joint, and the clamping protrusions 416 are clamped in the clamping grooves 415, so that the connection strength of the second pipe joint and the first pipe joint is improved, and the air tightness of the joint of the second pipe joint and the first pipe joint is also ensured.
The evacuation tube further comprises a hose 44 connected to the suction tube, one end of the hose 44 is connected to the end of the suction tube far away from the suction cup structure, and the other end of the hose is connected to the vacuum pump;
preferably, the hose 44 is connected to the second pipe section by a hose connector 441. A limiting bulge 417 is arranged on the inner surface of the second pipe section far away from the first pipe section, the hose connector 441 is inserted into the second pipe section, and at the moment, due to the arrangement of the limiting bulge 417, the second pipe section and the hose connector 441 are in interference connection, so that the tight connection between the second pipe section and the hose connector 441 is ensured.
Preferably, as shown in fig. 1, the pre-burying method further includes: an air valve 43 is provided, and the air valve 43 is provided in the middle of the hose 44. Through the setting of pneumatic valve 43 for every evacuation pipe accessible closes pneumatic valve 43 and makes the evacuation intraductal vacuum state that keeps after utilizing vacuum pump 42 evacuation, and then makes vacuum pump 42 accomplish the evacuation work of an evacuation pipe after, can move to another evacuation pipe department, has enough to meet the need like this and has used vacuum pump 42 and effectively reduced equipment cost.
then, the vacuum pump 42 is started, and the air in the evacuation tube is evacuated by the vacuum pump 42, so that negative pressure is formed in the evacuation tube and an adsorption force is generated to the gasket 10 to fix the gasket 10 in the caulking groove.
finally, as shown in fig. 6, the segment steel die 20 is enclosed to form a casting space of the segment, the part of the sealing gasket 10 protruding from the surface of the segment steel die 20 is located in the casting space, concrete 31 is cast in the casting space, the part of the sealing gasket 10 located in the casting space of the segment is embedded in the concrete, and then the concrete 31 is vibrated to float and discharge the air bubbles 311 in the concrete.
As shown in fig. 7, after the concrete is solidified to form the duct piece 30, the vacuum pump is turned off and the duct piece steel die 20 is removed, since the sealing pad has a part which is pre-embedded in the duct piece 30, and the vacuum pump is turned off during removal of the die, the sealing pad does not receive the adsorption force any more, the part of the sealing pad embedded in the caulking groove can be easily separated from the duct piece steel die 20 and exposed on the surface of the circumferential joint and/or the longitudinal joint of the duct piece 30, and at this time, the sealing pad 10 is pre-embedded in the duct piece 30.
In a preferred embodiment, as shown in fig. 5 and fig. 6, for convenience of description, the portion of the sealing gasket inserted into the embedding groove is defined as an embedded portion 11, the portion embedded in the concrete is defined as an embedded portion 12, and an abutting surface 111 is formed on the side of the embedded portion 11 away from the segment. A boss 112 is provided at the embedding portion 11 of the sealing gasket near the attaching surface 111, and preferably, two bosses 112 are provided, and the two bosses 112 respectively protrude toward the direction of the intrados and extrados of the tube sheet. When the caulking groove is formed, a limiting structure 21 matched with the boss 112 is formed in the caulking groove. When placing embedding part 11 in the caulking groove, the surface of embedding part 11 and the laminating of caulking groove surface, boss 112 card reach the effect that further prevents sealed the pad and drop in limit structure 21.
Two grout stopping parts 13 are arranged on the sealing gasket corresponding to the notches of the caulking grooves, and the grout stopping parts 13, the embedding parts 11 and the embedding parts 12 are integrally formed. When putting embedding portion in the caulking groove, only starch portion 13 ends starch face 131 and the laminating of section of jurisdiction steel mould 20's surface to when concreting 31, only starch portion 13 receives concrete 31 to its pressure and closely laminate with section of jurisdiction steel mould 20's surface, effectively prevents in the caulking groove that the concrete thick liquid flowed into on section of jurisdiction steel mould 20.
at least two convex anchor angle structures 121 are arranged on the embedded part 12, and when concrete is poured, the anchor angle structures 121 are embedded in the concrete. In order to enable the sealing gasket to be tightly adhered, the contact surface of the sealing gasket and the duct piece is required to be a plane, so that the water seepage channel is straight and easy to seep water.
preferably, the number of the anchor corner structures 121 is two, and the anchor corner structures are disposed at the corners of the embedded part 12, and the surface of the embedded part 12 between the two anchor corner structures 121 is designed to be a vertical plane, so that the contact surface between the embedded part 12 and the segment 30 is a plane in a shape of a Chinese character 'bow'.
further, the width of the part of the anchor corner structure 121 far away from the embedding part 11 is designed to be larger than that of the part of the anchor corner structure 121 near the embedding part 11, so that after the concrete 31 is solidified, the anchor corner structure 121 can be embedded in the duct piece more firmly, and the sealing gasket is prevented from falling off.
the surface of the anchor corner structure 121 that is closer to the intrados of the tube sheet is a guide surface 122, and the guide surface 122 is arranged obliquely so that the portion of the anchor corner structure 121 that is away from the embedded portion 11 is closer to the extrados of the tube sheet. Similarly, the surface of the pre-buried portion 12 close to the intrados of the segment is a transition surface 124, and the transition surface 124 is also inclined upward (i.e., in the direction close to the extrados of the segment), thereby facilitating the discharge of the bubbles 311. When the concrete 31 is vibrated, the air bubbles 311 in the concrete 31 float up along the transition surface 124 and the guide surface 122 and are discharged.
the upper surface (i.e. the surface close to the segment extrados) of the anchor corner structure 121 is defined as a waterstop surface 123, because the width of the part of the anchor corner structure 121 far away from the embedding part 11 is designed to be larger than the width of the part of the anchor corner structure 11 close to the embedding part 11, and the guide surface 122 is obliquely arranged, the waterstop surface 123 is also an inclined surface and inclines upwards (i.e. the direction close to the segment extrados), so that the groundwater can pass through the contact surface after flowing back along the waterstop surface 123 when permeating from the contact surface, and the water seepage can be effectively prevented.
as shown in fig. 5 and 7, after the embedding, the embedded portion of the sealing gasket is embedded in the duct piece 30, and the embedded portion 11 is exposed out of the end surface of the duct piece 30, so that the pair of sealing gaskets are arranged oppositely at the circumferential seam and/or the longitudinal seam of the duct piece. When the duct piece 30 is spliced, the joint surfaces 111 of the pair of sealing gaskets are jointed to achieve the effects of sealing and water seepage prevention.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. a method for embedding a tube sheet sealing gasket is characterized by comprising the following steps:
providing a duct piece steel die, wherein an embedding groove is formed in the surface of the duct piece steel die, and a through hole is formed in the bottom surface of the embedding groove;
Providing an adsorption device and a sealing gasket, penetrating the adsorption device through the through hole, partially placing the sealing gasket in the caulking groove, enabling the rest part of the sealing gasket to protrude out of the surface of the duct piece steel die, enabling the sealing gasket to be attached to the surface opposite to the adsorption device, and applying adsorption force to the sealing gasket through the adsorption device to enable the sealing gasket to be fixed in the caulking groove;
the method comprises the steps of enclosing a duct piece steel die into a pouring space of the duct piece, pouring concrete in the pouring space, enabling the part, protruding out of the surface of the duct piece steel die, of the sealing gasket to be buried in the concrete, removing the duct piece steel die after the concrete is solidified, and enabling the sealing gasket to be buried in the duct piece in a pre-buried mode.
2. the method for embedding a segment seal gasket according to claim 1, wherein the adsorption device includes an evacuation tube and a vacuum pump, and the embedding method further comprises:
one end of the vacuumizing pipe is arranged in the through hole in a penetrating mode, and the vacuum pump is connected to the other end of the vacuumizing pipe;
And starting the vacuum pump, and pumping air in the vacuum pumping pipe away by using the vacuum pump, so that the vacuum pumping pipe generates adsorption force on the sealing gasket to fix the sealing gasket in the caulking groove.
3. The method for embedding a segment seal gasket according to claim 2, wherein the evacuation tube includes an adsorption tube at an end portion, and the embedding method further comprises:
a sucker structure is arranged at one end of the adsorption tube;
Will the adsorption tube wear to locate in the through-hole and with the section of jurisdiction steel mould is fixed, and makes sucker structure corresponds the caulking groove sets up, makes the gasket portion arrange in back in the caulking groove, sucker structure paste in the surface of sealed pad.
4. A method for embedding a segment gasket according to claim 3, wherein a corrugated structure attached to the surface of the gasket is formed on the edge of the suction cup structure.
5. The method of embedding a segment seal gasket according to claim 3, wherein the diameter of the suction cup structure gradually increases as the suction cup structure approaches the caulking groove, and the method further comprises:
The utility model discloses a suction tube, including suction tube, suction disc structure, suction tube, nut, the suction tube is kept away from the surface of the one end of suction disc structure sets up the screw thread the suction tube is worn to locate behind the through-hole, with the nut spiro union in the suction tube and screw until the nut support to lean on in the section of jurisdiction steel mould is kept away from one side of caulking groove, and suction disc structure along with the nut is screwed and is supported to lean on in the section of jurisdiction steel mould is located one side of caulking groove bottom surface, thereby will the suction tube with the section of jurisdiction steel mould.
6. The method for embedding the segment sealing gasket according to claim 5, wherein the adsorption pipe comprises a first pipe section and a second pipe section, and the embedding method further comprises the following steps:
A circle of clamping grooves are formed in the inner surface of the first pipe joint;
And arranging a circle of clamping bulges on the outer surface of the second pipe joint corresponding to the clamping groove, and inserting the second pipe joint into the first pipe joint to clamp the clamping bulges in the clamping groove.
7. The method for embedding a segment seal gasket according to any one of claims 3 to 6, wherein the evacuation tube further comprises a hose connected to the suction tube, and the embedding method further comprises:
connecting one end of the hose to the end part of the adsorption pipe far away from the sucker structure, and connecting the other end of the hose to the vacuum pump;
And providing an air valve, wherein the air valve is arranged in the middle of the hose.
8. The method for embedding the segment gasket of claim 1, further comprising:
In the sealing gasket correspond notch department of caulking groove sets up two and ends thick liquid portions, will sealing gasket part is arranged in during the caulking groove, end the surface of thick liquid portion with the surface laminating of section of jurisdiction steel mould to realized blockking that the concrete that pours the section of jurisdiction gets into in the caulking groove.
9. The method for embedding the segment gasket of claim 1, further comprising:
The part of the sealing gasket, which protrudes out of the surface of the pipe piece steel die, is provided with a convex anchor angle structure, and when concrete is poured, the anchor angle structure is embedded in the concrete, so that the contact surface between the part of the sealing gasket, which is embedded in the concrete, and the pipe piece is a non-straight surface.
10. The method for embedding the segment gasket of claim 9, further comprising:
the anchor angle structure is obliquely arranged close to the surface of the intrados of the duct piece, so that the part, far away from the duct piece steel die, of the anchor angle structure is close to the extrados of the duct piece;
after concrete is poured, the concrete is vibrated, so that bubbles in the concrete float upwards and are discharged along the surface of the anchor angle structure, which is close to the intrados of the duct piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283471.2A CN109209433B (en) | 2018-10-31 | 2018-10-31 | pre-embedding method of segment sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283471.2A CN109209433B (en) | 2018-10-31 | 2018-10-31 | pre-embedding method of segment sealing gasket |
Publications (2)
| Publication Number | Publication Date |
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| CN109209433A CN109209433A (en) | 2019-01-15 |
| CN109209433B true CN109209433B (en) | 2019-12-06 |
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| CN201811283471.2A Active CN109209433B (en) | 2018-10-31 | 2018-10-31 | pre-embedding method of segment sealing gasket |
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| CN110005642A (en) * | 2019-03-28 | 2019-07-12 | 盐城海纳汽车零部件有限公司 | Easily removable and washable water pump |
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| CN106393422A (en) * | 2016-03-29 | 2017-02-15 | 徐公科 | Fixing device for embedded channel |
| CN106285729A (en) * | 2016-10-27 | 2017-01-04 | 中国石油天然气集团公司 | A kind of waterproof method for high hydraulic pressure light section shield tunnel seam |
| CN106285728B (en) * | 2016-10-27 | 2018-12-25 | 中国石油天然气集团公司 | A kind of flexible joint of shield tunnel and vertical shaft junction |
| CN206847863U (en) * | 2017-04-21 | 2018-01-05 | 中铁第四勘察设计院集团有限公司 | A kind of waterproof test device of tunnel duct piece elastic sealing gasket |
| CN107060814B (en) * | 2017-04-25 | 2018-11-23 | 中南大学 | A kind of prefabricated shield duct piece earth pressure gauge method for embedding |
| CN107503521B (en) * | 2017-08-22 | 2023-03-10 | 中国建筑第七工程局有限公司 | Accurate positioning and fixing device for embedded part of prefabricated part and using method of accurate positioning and fixing device |
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2018
- 2018-10-31 CN CN201811283471.2A patent/CN109209433B/en active Active
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