CN111347537A - Production process and assembly method of shield tunnel segment - Google Patents
Production process and assembly method of shield tunnel segment Download PDFInfo
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- CN111347537A CN111347537A CN202010228660.0A CN202010228660A CN111347537A CN 111347537 A CN111347537 A CN 111347537A CN 202010228660 A CN202010228660 A CN 202010228660A CN 111347537 A CN111347537 A CN 111347537A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/384—Treating agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
- B28B23/024—Supporting means
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a production process of shield tunnel segments and an assembling method thereof, wherein the shield tunnel segments comprise segment bodies, inserts and bolts, three inserts are fixedly arranged on one side of each segment body, four mounting holes are fixedly arranged on the surfaces of the segment bodies, PVC pipes are fixedly arranged in the segment bodies at one ends of the mounting holes, the bolts are arranged in the PVC pipes at two ends of the mounting holes, and clamping grooves are formed in the surfaces at two ends of the segment bodies. According to the invention, the polypropylene reticular fiber additive is added into the concrete, so that early plastic shrinkage and settlement cracks of the concrete and cement mortar can be effectively controlled, the PVC pipe is installed, stress concentration when the bolt is in contact with the concrete is favorably reduced, the concrete is protected, the shear resistance function of the duct piece is improved, the sealing performance between the duct pieces can be increased when the sealing gasket is used, and the phenomenon that the duct pieces are permeated after being installed is avoided.
Description
Technical Field
The invention relates to the technical field of tunnel segment production, in particular to a production process and an assembling method of shield tunnel segments.
Background
With the mass concentration of expanded vehicles in urban population, traffic jam gradually becomes a big problem of people's life and work, in order to solve the problem, underground rail traffic is developed in large cities, at present, subway construction mainly adopts shield construction, the shield construction is to assemble a tunnel structure main body by a plurality of prefabricated shield segments, as the tunnel needs to bear peripheral soil layer pressure, underground water pressure and some special loads, and simultaneously, the quality requirements of engineering construction such as crack width, assembly precision, impermeability and leakage prevention indexes are required to be met, the quality of the shield segments is particularly important, the shield segments directly relate to the whole quality and safety of the tunnel and influence the waterproof performance and the durability of the tunnel, the shield segments are main assembly members of the shield construction, are innermost barriers of the tunnel and bear the functions of resisting the soil layer pressure, the underground water pressure and some special loads, therefore, the use performance of the shield segment is directly related to the overall quality and safety of the tunnel.
Disclosure of Invention
The invention aims to provide a production process of shield tunnel segments and an assembling method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a production process of shield tunnel segment and its assembly method, its construction flow has mould assembly → spraying release agent → embedded part installation → concrete pouring → segment maintenance → segment demoulding → segment maintenance → transportation and assembly, characterized in that: the method comprises the following seven steps:
the method comprises the following steps: assembling the die: before the die assembly, all positions of the die are checked, according to the sequence of closing the end die plate firstly and closing the side die secondly, all bolts are unfolded and pulled away when the side die is closed, fixing bolts of the bottom die and the side die are installed, the fixing bolts are screwed by hands firstly, and then special tools are sequentially screwed from the middle to the two ends;
step two: the spraying release agent is as follows: checking whether residual concrete exists on the inner surface of the mold, selecting a water-soluble release agent for spraying after confirmation, and spraying by using a mist sprayer and then uniformly coating by using a mop when spraying the release agent;
step three: installing the embedded part: fixing the positions of the reinforcement cage and the PVC pipeline embedded parts in the mold by using the plastic cushion blocks, and checking the number of supports of a concrete protective layer of the reinforcement cage, the height of the protective layer, the number of the installed embedded parts and the fitting degree of the embedded parts and the mold;
step four: pouring the concrete: the method comprises the following steps of pouring newly-prepared concrete into a duct piece mould by adopting pneumatic integral vibration, reducing the content of gas in the concrete to the maximum extent, wherein when the temperature is lower than 25 ℃, the interval time of discharging the concrete from a stirrer and pouring the concrete into the mould after transportation is not longer than 3 hours, and when the temperature is higher than 25 ℃, the interval time is not longer than 2.5 hours;
step five: and (3) maintaining the duct pieces: the maintenance of the duct piece comprises maintenance before demolding and maintenance after demolding, wherein the maintenance before demolding adopts steam maintenance, the maintenance is performed after filling for 2 hours to carry out temperature rise steam maintenance, and water cooling is immediately adopted after demolding, so that the phenomenon that the duct piece loses water and generates crack is avoided;
step six: demolding of the duct piece: the horizontal lifting appliance is adopted for demoulding the shield segment, demoulding can be carried out after the strength of the segment is more than 20MPa, the side plates are firstly dismounted and the end mould is then dismounted in the demoulding process, and in order to avoid the phenomenon that the segment is damaged in the demoulding process, the whole demoulding process cannot be forcibly dismounted;
seventhly, transporting and assembling, namely marking the type, mark, model, production serial number, production date and inspection state of the duct piece on the side surface of the duct piece and the upper right corner of the inner arc surface after the maintenance of the duct piece is finished, and transporting the duct piece on 3 hard square timbers of 0.1m × 0.1.1 m to a construction site for assembling after the marking is finished.
Furthermore, the concrete is formed by mixing ordinary portland cement, fly ash, coarse aggregate, fine aggregate, a water reducing agent, water and polypropylene reticular fiber, wherein the strength of the ordinary portland cement is not lower than 32.5Mpa, and the doping amount of the polypropylene reticular fiber is not more than 5% of the mass of the cement.
Further, clear up the mould before carrying out the group mould, do not have remaining concrete in the requirement mould, use film and sponge cooperation clearance mould internal surface, do not allow to use ironware to clear away at the mould surface, after the clean up remaining concrete, follow mould internal surface clean up with debris.
Furthermore, the temperature needs to be controlled in the curing process before demolding in the fifth step, the duct piece is subjected to standing and stopping and then subjected to three stages of temperature rise, constant temperature and temperature reduction, the temperature rise and the speed rise need to be controlled to be below 15 ℃/h or 15 ℃/h, and the upper temperature limit is 60 ℃; keeping the temperature for 2 hours, wherein the relative humidity needs to be maintained at 90% or above, and the temperature can be properly adjusted according to climate change when the temperature is kept constant; the upper limit of the cooling rate is 20 ℃/h, and the temperature is reduced to the same room temperature and maintained below 15 ℃.
Further, in order to guarantee the welding quality of the segment mould and eliminate welding stress, high-temperature quenching treatment is carried out after the mould is welded and formed, precision testing needs to be carried out when the mould enters a field for the first time or the turnover frequency reaches 100 times, and the permitted deviation needs to meet the standard requirement.
Compared with the prior art, the invention has the beneficial effects that: the production process of the shield tunnel segment and the preparation method of the splicing method thereof can effectively control the early plastic shrinkage and settlement cracks of the concrete and cement mortar by adding the polypropylene reticular fiber additive into the concrete, greatly improve the anti-permeability, anti-crushing and anti-impact properties of the concrete, enhance the toughness and wear resistance of the concrete, by installing the PVC pipe, the stress concentration of the bolt in contact with concrete is favorably reduced, the concrete is protected, the shear resistance function of the duct piece is improved, the top and the bottom of the duct piece can be assembled when in use through bolts, the front and the back surfaces of the duct piece can be connected when in use through the insertion piece and the receiving hole, thereby make things convenient for the user of service to assemble the section of jurisdiction more, utilize sealed the pad can increase the leakproofness between the section of jurisdiction when using in the time, avoid the section of jurisdiction to appear the phenomenon of infiltration after the installation.
Drawings
FIG. 1 is a schematic flow chart of a shield tunnel segment production process and an assembling method thereof according to the present invention;
fig. 2 is a structural diagram of a shield tunnel segment production process and an assembling method thereof according to the present invention;
fig. 3 is a front view of a shield tunnel segment production process and an assembling method thereof according to the present invention;
fig. 4 is a side view of the shield tunnel segment production process and the splicing method thereof according to the present invention;
fig. 5 is a schematic view of a segment body and a bolt local structure of the shield tunnel segment production process and the splicing method thereof.
In the figure: 1. an insert; 2. a segment body; 3. a bolt; 301. a nut; 302. a nut; 4. mounting holes; 5. hoisting holes; 6. a card slot; 7. a gasket; 8. a receiving aperture; 9. PVC pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, an embodiment of the present invention: a production process of shield tunnel segment and its assembly method, its construction flow has mould assembly → spraying release agent → embedded part installation → concrete pouring → segment maintenance → segment demoulding → segment maintenance → transportation and assembly, characterized in that: the method comprises the following seven steps:
the method comprises the following steps: assembling the die: before the die assembly, all positions of the die are checked, according to the sequence of closing the end die plate firstly and closing the side die secondly, all bolts are unfolded and pulled away when the side die is closed, fixing bolts of the bottom die and the side die are installed, the fixing bolts are screwed by hands firstly, and then special tools are sequentially screwed from the middle to the two ends;
step two: the spraying release agent is as follows: checking whether residual concrete exists on the inner surface of the mold, selecting a water-soluble release agent for spraying after confirmation, and spraying by using a mist sprayer and then uniformly coating by using a mop when spraying the release agent;
step three: installing the embedded part: the positions of the reinforcement cage and the PVC pipeline embedded parts in the mold are fixed by using the plastic cushion blocks, the number of the supports of the concrete protective layer of the reinforcement cage, the height of the protective layer, the number of the installed embedded parts and the fit degree with the mold are checked, and the PVC pipes are installed, so that the stress concentration when the bolts are in contact with the concrete is favorably reduced, the concrete is protected, and the shear resistance function of the duct piece is improved;
step four: pouring the concrete: the new concrete is poured into the segment mould by pneumatic integral vibration, the content of gas in the concrete is reduced to the maximum extent, when the temperature is lower than 25 ℃, the interval time of the concrete discharged from a mixer and transported and poured into the mould is not longer than 3 hours, and when the temperature is higher than 25 ℃, the interval time is not longer than 2.5 hours, the pneumatic integral vibration is adopted for concrete forming, the content of gas in the concrete is reduced to the maximum extent, but the concrete is easy to separate into layers and float on the surface when the vibration is too long, so the concrete is fed in three layers when in use, the high-frequency vibration is adopted when the concrete is poured into the mould, then the low-frequency vibration is adopted after the feeding, the vibration time and the vibration frequency of each time are adjusted according to the working performance of the concrete, the total vibration time is controlled within ten minutes, the layered feeding vibration mode can stop the over-vibration and separate into layers of the concrete, and simultaneously the void ratio and the gas content of the concrete can be reduced as much as possible, the quality problems of honeycomb pitted surface and the like on the surface of the duct piece are avoided;
step five: and (3) maintaining the duct pieces: the maintenance of the duct piece comprises maintenance before demolding and maintenance after demolding, wherein the maintenance before demolding adopts steam maintenance, the maintenance is performed after filling for 2 hours to carry out temperature rise steam maintenance, and water cooling is immediately adopted after demolding, so that the phenomenon that the duct piece loses water and generates crack is avoided;
step six: demolding of the duct piece: the horizontal lifting appliance is adopted for demoulding the shield segment, demoulding can be carried out after the strength of the segment is more than 20MPa, the side plates are firstly dismounted and the end mould is then dismounted in the demoulding process, and in order to avoid the phenomenon that the segment is damaged in the demoulding process, the whole demoulding process cannot be forcibly dismounted;
seventhly, transporting and assembling, namely marking the type, mark, model, production serial number, production date and inspection state of the duct piece on the side surface of the duct piece and the upper right corner of the inner arc surface after the maintenance of the duct piece is finished, and transporting the duct piece on 3 hard square timbers of 0.1m × 0.1.1 m to a construction site for assembling after the marking is finished.
Furthermore, the concrete is formed by mixing ordinary portland cement, fly ash, coarse aggregate, fine aggregate, a water reducing agent, water and polypropylene reticular fiber, wherein the strength of the ordinary portland cement is not lower than 32.5Mpa, and the doping amount of the polypropylene reticular fiber is not more than 5% of the mass of the cement.
Further, clear up the mould before carrying out the group mould, do not have remaining concrete in the requirement mould, use film and sponge cooperation clearance mould internal surface, do not allow to use ironware to clear away on the mould surface, after the clean up remaining concrete, with debris from mould internal surface clean up, after each steel sheet of mould folds the work and accomplishes, all will arrange quality testing personnel to detect the steel mould internal clear width size to carry out the record, the accuracy nature of very high device.
Furthermore, the temperature needs to be controlled in the curing process before demolding in the fifth step, the duct piece is subjected to standing and stopping and then subjected to three stages of temperature rise, constant temperature and temperature reduction, the temperature rise and the speed rise need to be controlled to be below 15 ℃/h or 15 ℃/h, and the upper temperature limit is 60 ℃; keeping the temperature for 2 hours, wherein the relative humidity needs to be maintained at 90% or above, and the temperature can be properly adjusted according to climate change when the temperature is kept constant; the upper limit of the cooling rate is 20 ℃/h, and the temperature is reduced to the same room temperature and maintained below 15 ℃.
Further, in order to guarantee the welding quality of the segment mould and eliminate welding stress, high-temperature quenching treatment is carried out after the mould is welded and formed, precision testing needs to be carried out when the initial entrance or turnover frequency of the mould reaches 100 times, the permitted deviation meets the standard requirement, lubrication of each clamping position, each bolt connecting point and each running position of the steel mould is detected at regular time, and the bolts, the positioning mechanisms and the bent bolts are fastened and periodically injected with butter.
Example 2
A production process and an assembling method of shield tunnel segments are disclosed:
1. a production process and an assembling method of shield tunnel segments comprise segment bodies (2), inserts (1) and bolts (3), and are characterized in that: one side fixed mounting of section of jurisdiction body (2) has three inserts (1), four fixed mounting in surface of section of jurisdiction body (2) have mounting hole (4), and the inside fixed mounting of section of jurisdiction body (2) of mounting hole (4) one end has PVC pipe (9), the PVC pipe (9) internally mounted at mounting hole (4) both ends has bolt (3), the surface at section of jurisdiction body (2) both ends is provided with draw-in groove (6).
2. The production process and the assembling method of the shield tunnel segment according to claim 1, wherein the production process comprises the following steps: the peripheral screw thread of bolt (3) is installed nut (301), the top fixed mounting of bolt (3) has nut (302).
3. The production process and the assembling method of the shield tunnel segment according to claim 1, wherein the production process comprises the following steps: the novel duct piece is characterized in that a sealing gasket (7) is arranged inside a clamping groove (6) between the two duct piece bodies (2), and the sealing gasket (7) is made of rubber water stop strips.
4. The production process and the assembling method of the shield tunnel segment according to claim 1, wherein the production process comprises the following steps: the surface of the segment body (2) between the mounting holes (4) is provided with four hoisting holes (5) at equal intervals.
5. The production process and the assembling method of the shield tunnel segment according to claim 1, wherein the production process comprises the following steps: the surface of the other side of the duct piece body (2) is provided with three receiving holes (8), and the receiving holes (8) are overlapped with the inserting pieces (1).
The working principle is as follows: by arranging three receiving holes 8 on the surface of the other side of the duct piece body 2, wherein the receiving holes 8 are coincided with the inserts 1, three inserts 1 are fixedly arranged on one side of the duct piece body 2, the front end and the rear end of the duct piece body 2 can be assembled by using the inserts 1 and the receiving holes 8 when in use, mounting holes 4 are fixedly arranged on four sides of the surface of the duct piece body 2, bolts 3 are arranged inside PVC pipes 9 at two ends of the mounting holes 4, the upper end and the lower end of the duct piece body 2 can be spliced by the bolts when in use, thereby improving the practicability and the stability of the device, a PVC pipe 9 is fixedly arranged inside the duct piece body 2 at one end of the mounting holes 4, being beneficial to reducing the stress concentration when the bolts are contacted with concrete, protecting the concrete, improving the shearing resistance of the duct piece, clamping grooves 6 are arranged on the surfaces at two ends of the duct piece body 2, a sealing gasket 7 is arranged, the leakproofness between the section of jurisdiction can increase when using in the time, avoids the section of jurisdiction to appear the phenomenon of infiltration after the installation.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. A production process of shield tunnel segment and its assembly method, its construction flow has mould assembly → spraying release agent → embedded part installation → concrete pouring → segment maintenance → segment demoulding → segment maintenance → transportation and assembly, characterized in that: the method comprises the following seven steps:
the method comprises the following steps: assembling the die: before the die assembly, all positions of the die are checked, according to the sequence of closing the end die plate firstly and closing the side die secondly, all bolts are unfolded and pulled away when the side die is closed, fixing bolts of the bottom die and the side die are installed, the fixing bolts are screwed by hands firstly, and then special tools are sequentially screwed from the middle to the two ends;
step two: the spraying release agent is as follows: checking whether residual concrete exists on the inner surface of the mold, selecting a water-soluble release agent for spraying after confirmation, and spraying by using a mist sprayer and then uniformly coating by using a mop when spraying the release agent;
step three: installing the embedded part: fixing the positions of the reinforcement cage and the PVC pipeline embedded parts in the mold by using the plastic cushion blocks, and checking the number of supports of a concrete protective layer of the reinforcement cage, the height of the protective layer, the number of the installed embedded parts and the fitting degree of the embedded parts and the mold;
step four: pouring the concrete: the method comprises the following steps of pouring newly-prepared concrete into a duct piece mould by adopting pneumatic integral vibration, reducing the content of gas in the concrete to the maximum extent, wherein when the temperature is lower than 25 ℃, the interval time of discharging the concrete from a stirrer and pouring the concrete into the mould after transportation is not longer than 3 hours, and when the temperature is higher than 25 ℃, the interval time is not longer than 2.5 hours;
step five: and (3) maintaining the duct pieces: the maintenance of the duct piece comprises maintenance before demolding and maintenance after demolding, wherein the maintenance before demolding adopts steam maintenance, the maintenance is performed after filling for 2 hours to carry out temperature rise steam maintenance, and water cooling is immediately adopted after demolding, so that the phenomenon that the duct piece loses water and generates crack is avoided;
step six: demolding of the duct piece: the horizontal lifting appliance is adopted for demoulding the shield segment, demoulding can be carried out after the strength of the segment is more than 20MPa, the side plates are firstly dismounted and the end mould is then dismounted in the demoulding process, and in order to avoid the phenomenon that the segment is damaged in the demoulding process, the whole demoulding process cannot be forcibly dismounted;
seventhly, transporting and assembling, namely marking the type, mark, model, production serial number, production date and inspection state of the duct piece on the side surface of the duct piece and the upper right corner of the inner arc surface after the maintenance of the duct piece is finished, and transporting the duct piece on 3 hard square timbers of 0.1m × 0.1.1 m to a construction site for assembling after the marking is finished.
2. The production process and the assembling method of the shield tunnel segment according to claim 1, wherein the production process comprises the following steps: the concrete is formed by mixing ordinary portland cement, fly ash, coarse aggregate, fine aggregate, a water reducing agent, water and polypropylene reticular fiber, wherein the strength of the ordinary portland cement is not lower than 32.5Mpa, and the doping amount of the polypropylene reticular fiber is not more than 5% of the mass of the cement.
3. The production process and the assembling method of the shield tunnel segment according to claim 1, wherein the production process comprises the following steps: the mould is cleaned before mould assembling, residual concrete does not exist in the mould, the inner surface of the mould is cleaned by matching rubber sheets and sponge, an ironware is not allowed to be used for cleaning the surface of the mould, and impurities are cleaned from the inner surface of the mould after the residual concrete is cleaned.
4. The production process and the assembling method of the shield tunnel segment according to claim 1, wherein the production process comprises the following steps: fifthly, controlling the temperature in the curing process before demolding, allowing the duct piece to be subjected to standing, and then to heating, constant temperature and cooling, wherein the heating and rising speed is controlled to be 15 ℃/h or below 15 ℃/h, and the upper temperature limit is 60 ℃; keeping the temperature for 2 hours, wherein the relative humidity needs to be maintained at 90% or above, and the temperature can be properly adjusted according to climate change when the temperature is kept constant; the upper limit of the cooling rate is 20 ℃/h, and the temperature is reduced to the same room temperature and maintained below 15 ℃.
5. The production process and the assembling method of the shield tunnel segment according to claim 1, wherein the production process comprises the following steps: in order to ensure the welding quality of the segment mould and eliminate welding stress, the high-temperature quenching treatment is carried out after the mould is welded and formed, the precision test needs to be carried out when the mould is firstly put into the field or the turnover frequency reaches 100 times, and the allowable deviation meets the standard requirement.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589993A (en) * | 2020-11-19 | 2021-04-02 | 绍兴中亚工贸园有限公司 | Segment embedded part fixing base and segment forming method thereof |
| CN114458337A (en) * | 2022-01-28 | 2022-05-10 | 青岛理工大学 | Shield tunneling machine pipe piece cleaning and splicing machine safe operation cooperative system and method |
| CN114878277A (en) * | 2022-05-27 | 2022-08-09 | 中铁隧道局集团有限公司 | Adjustable-density duct piece component and using method thereof |
| CN118478433A (en) * | 2024-07-16 | 2024-08-13 | 深地科学与工程云龙湖实验室 | Novel energy shield tunnel segment prefabricating die and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017209849A (en) * | 2016-05-25 | 2017-11-30 | 東日本旅客鉄道株式会社 | Production method of reinforced concrete product |
| CN207813627U (en) * | 2017-11-27 | 2018-09-04 | 江苏迅拓机械有限公司 | A kind of shield segment assembling location lug set |
| CN209637770U (en) * | 2019-01-31 | 2019-11-15 | 沈阳建筑大学 | A kind of metro shield section of jurisdiction |
-
2020
- 2020-03-27 CN CN202010228660.0A patent/CN111347537A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017209849A (en) * | 2016-05-25 | 2017-11-30 | 東日本旅客鉄道株式会社 | Production method of reinforced concrete product |
| CN207813627U (en) * | 2017-11-27 | 2018-09-04 | 江苏迅拓机械有限公司 | A kind of shield segment assembling location lug set |
| CN209637770U (en) * | 2019-01-31 | 2019-11-15 | 沈阳建筑大学 | A kind of metro shield section of jurisdiction |
Non-Patent Citations (3)
| Title |
|---|
| 上海大师建筑装饰环境设计研究所: "《建筑装饰材料图鉴大全》", 31 January 2012, 上海科学技术出版社 * |
| 杨宏旭: ""盾构管片生产施工技术"", 《国防交通工程与技术》 * |
| 王相东: ""盾构隧道混凝土管片生产工艺及质量控制措施"", 《建设科技》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589993A (en) * | 2020-11-19 | 2021-04-02 | 绍兴中亚工贸园有限公司 | Segment embedded part fixing base and segment forming method thereof |
| CN114458337A (en) * | 2022-01-28 | 2022-05-10 | 青岛理工大学 | Shield tunneling machine pipe piece cleaning and splicing machine safe operation cooperative system and method |
| CN114878277A (en) * | 2022-05-27 | 2022-08-09 | 中铁隧道局集团有限公司 | Adjustable-density duct piece component and using method thereof |
| CN118478433A (en) * | 2024-07-16 | 2024-08-13 | 深地科学与工程云龙湖实验室 | Novel energy shield tunnel segment prefabricating die and using method thereof |
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