CN109812279B - Shock insulation duct piece for shield tunnel - Google Patents
Shock insulation duct piece for shield tunnel Download PDFInfo
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- CN109812279B CN109812279B CN201910083447.2A CN201910083447A CN109812279B CN 109812279 B CN109812279 B CN 109812279B CN 201910083447 A CN201910083447 A CN 201910083447A CN 109812279 B CN109812279 B CN 109812279B
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Abstract
The invention discloses a shock insulation duct piece for a shield tunnel, which comprises a duct piece main body and a rubber shock insulation layer fixed at the connecting end of the duct piece; the duct piece main body is made of nickel-titanium alloy cement-based composite materials, namely, coarse aggregate in the concrete preparation process in the prior art is replaced by a proper amount of nickel-titanium alloy fibers, and the nickel-titanium alloy fibers comprise the following specific components in percentage by weight: 55.9% nickel, 44.1% titanium; the volume ratio of the nickel-titanium alloy fiber to the sum of the components of the nickel-titanium alloy cement-based composite material is 1.8%; the rubber shock insulation layer is made of a viscoelastic high-damping rubber material; the rubber shock insulation layer is fixed with the duct piece main body by adopting an adhesive and nested structure. The invention utilizes the nickel-titanium alloy cement-based engineering composite material and the rubber shock insulation layer to obstruct the propagation of the earthquake waves, thereby ensuring the relative safety of the tunnel under the action of the earthquake waves. On the premise of not changing the original construction method, the safety of the structure can be improved, and the capability of the tunnel structure for resisting earthquake damage is improved.
Description
Technical Field
The invention relates to the field of underground structure construction, in particular to a shock insulation duct piece for a shield tunnel.
Background
With the national strategic demands, urban subway tunnels have become the most important rail traffic way for metropolitan areas. In high-intensity earthquake areas, due to the scarcity of channels, the tunnel cannot select lines so that the tunnel cannot avoid poor geology or faults, the influence of earthquake action on tunnel structures built under the complex geological conditions is more remarkable, and the earthquake-resistant problem of the tunnel becomes an important problem to be solved. At present, the duct piece for tunnel construction is single in form. The technology is mature but lacks consideration for shock resistance. The shield segment is a main assembly component for shield construction, is the innermost barrier of a tunnel, and plays roles of resisting soil layer pressure, underground water pressure and some special loads. Therefore, improvement of shield segments is necessary.
Disclosure of Invention
In order to solve the problems, the invention provides a shock insulation segment for a shield tunnel. The nickel-titanium alloy cement-based engineering composite material is used, and the segment has a certain absorption effect on the propagation of seismic waves. The shock insulation duct piece is used for replacing the original traditional duct piece, so that the tunnel structure can be protected from being damaged to a great extent, and the safety and personal safety of the tunnel structure are ensured.
In order to solve the technical problems, the invention provides a shock insulation pipe piece for a shield tunnel, which comprises a pipe piece main body and a rubber shock insulation layer fixed at the connecting end of the pipe piece; the duct piece main body is made of nickel-titanium alloy cement-based composite materials, and the nickel-titanium alloy cement-based composite materials comprise the following components in parts by weight: 540-560 parts of cement, 220-240 parts of quartz sand, 300-310 parts of water, 990-1020 parts of fly ash and 2-3 parts of water reducer; the nickel-titanium alloy fiber comprises the following specific components in percentage by weight: 55.9% nickel, 44.1% titanium; the volume ratio of the nickel-titanium alloy fiber to the sum of the components of the nickel-titanium alloy cement-based composite material is 1.8%; the rubber shock insulation layer is made of a viscoelastic high-damping rubber material; the rubber shock insulation layer is fixed with the duct piece main body by adopting an adhesive and nested structure.
The invention relates to a shock insulation duct piece for a shield tunnel, wherein a nested structure is connected by adopting T-shaped groove blocks, namely, a T-shaped groove is arranged on one side of a duct piece main body connected with a rubber shock insulation layer, and a T-shaped block matched with the T-shaped groove is arranged on one side of the rubber shock insulation layer connected with the duct piece main body.
In the nickel-titanium alloy cement-based composite material, the cement is common silicate cement with the mark number not lower than P.042.5; the average grain diameter of the quartz sand is 110 mu m, and the maximum grain diameter is 300 mu m; the fly ash is first-grade fly ash; the length of the nickel-titanium alloy fiber is about 3cm, and the diameter is about 0.25mm; the water reducer adopts a high-performance water reducer of the polymeric completion acid salt, the alkali content is less than 10%, the water reducing rate is more than 25%, and the normal pressure water-clearing rate is less than 20%.
The invention has the following beneficial effects:
according to the invention, the vibration isolation pipe piece made of the nickel-titanium alloy cement-based composite material can reduce the relative displacement between the pipe pieces, so that the displacement reaction of the tunnel during earthquake action can be reduced. The rubber shock insulation layer can absorb the energy of the earthquake waves, so that the influence of the earthquake on a tunnel structure is reduced, and the purpose of shock insulation is achieved. The invention has reasonable structure and simple construction, and can effectively improve the shock absorption and disaster prevention performance of the tunnel segment.
Drawings
FIG. 1 is a schematic view of a shock insulation segment for a shield tunnel according to the present invention
In the figure: 1-segment body; 2-nested structure; 3-rubber shock insulation layer.
Detailed Description
The present invention will be described in further detail with reference to examples in order to make the objects and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention is further described below with reference to the accompanying drawings.
The design idea of the shock insulation pipe piece is as follows: the pipe piece main body is made of nickel-titanium alloy and cement-based engineering composite materials, coarse aggregate in the concrete preparation process is replaced by a proper amount of nickel-titanium alloy fibers, and the pipe piece is made of the shock insulation pipe piece with the function of absorbing wave propagation in the lining structure.
As shown in FIG. 1, the invention provides a shock insulation duct piece for a shield tunnel, which comprises a duct piece main body 1 and rubber shock insulation layers 3 fixed on the periphery of the duct piece; the rubber shock insulation layer 3 is fixed with the duct piece main body by adopting an adhesive and nested structure 2. The rubber shock insulation layer 3 is used for preventing the propagation of seismic waves, absorbing the energy of the seismic waves and having a waterproof effect. The nested structure 2 is used for facilitating the installation and fixation of the rubber shock insulation layer 3 on four planes of the duct piece body 1.
The duct piece main body 1 is made of nickel-titanium alloy cement-based composite materials, wherein the nickel-titanium alloy cement-based composite materials comprise the following components in parts by weight: 540-560 parts of cement, 220-240 parts of quartz sand, 300-310 parts of water, 990-1020 parts of fly ash and 2-3 parts of water reducer; the nickel-titanium alloy fiber comprises the following specific components in percentage by weight: 55.9% nickel, 44.1% titanium; the volume ratio of the nickel-titanium alloy fiber to the sum of the components of the nickel-titanium alloy cement-based composite material is 1.8%. In the concrete implementation, the cement is ordinary Portland cement with the number not lower than P.042.5; the average grain diameter of the quartz sand is 110 mu m, and the maximum grain diameter is 300 mu m; the fly ash is first-grade fly ash; the nickel-titanium alloy fiber comprises the following specific components in percentage by weight: 55.9% nickel, 44.1% titanium, said nitinol fibers having a length of about 3cm and a diameter of about 0.25mm; the water reducer adopts a high-performance water reducer of the polymeric completion acid salt, the alkali content is less than 10%, the water reducing rate is more than 25%, and the normal pressure water-clearing rate is less than 20%.
The rubber shock insulation layer 3 is made of a viscoelastic high-damping rubber material,
the nested structure 2 adopts the connection of T type groove piece, namely be equipped with T type groove on the section of jurisdiction main part 1 with the one side that rubber shock insulation layer 3 is connected be equipped with on the rubber shock insulation layer 3 with one side that section of jurisdiction main part 1 is connected with T type groove complex T type piece.
The invention relates to a preparation method of a shock insulation segment for a shield tunnel, which mainly comprises the following steps:
the nickel-titanium alloy cement-based engineering composite material is prepared according to the components and the parts by weight, and is mainly prepared by replacing coarse aggregate in the concrete preparation process in the prior art with a proper amount of nickel-titanium alloy fibers.
The segment template size is recalculated, taking into account the shape of the nesting structure 2 provided in the present invention and changing the shape of the template with this as a criterion. In addition, due to the introduction of the rubber shock insulation layer 3, the size of the mold plate is reduced to some extent.
And (3) gluing an adhesive on the part of the demolded nickel-titanium alloy cement-based engineering composite material segment nested structure 2, and then installing a viscoelastic high-damping rubber material to enable the size of a finished product to be the same as that of a standard segment.
The viscoelastic high damping rubber material adopted by the rubber shock insulation layer is prepared by adding an additive taking carbon black as a main raw material into natural rubber. The carbon black can not only physically adsorb rubber molecules, but also chemically combine with the rubber molecules, so that the rubber finally forms an integral network structure, and the carbon black has a great promotion effect on the physical properties of high elasticity, high hardness, high strength and the like of the rubber.
The invention changes the preparation material of the duct piece from common concrete to nickel-titanium alloy cement-based engineering composite material. The earthquake-proof performance of the structure prepared by the material can be greatly improved, and the earthquake-proof pipe piece has certain deformability and restorability when an earthquake occurs, and has remarkable effect on blocking earthquake waves. The damage degree of the tunnel under the action of earthquake waves can be greatly reduced.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (3)
1. The shock insulation pipe piece for the shield tunnel is characterized by comprising a pipe piece main body (1) and a rubber shock insulation layer (3) fixed at the connecting end of the pipe piece;
the duct piece main body (1) is made of nickel-titanium alloy cement-based composite materials, and the nickel-titanium alloy cement-based composite materials comprise the following components in parts by weight: 540-560 parts of cement, 220-240 parts of quartz sand, 300-310 parts of water, 990-1020 parts of fly ash and 2-3 parts of water reducer; the nickel-titanium alloy fiber comprises the following specific components in percentage by weight: 55.9% nickel, 44.1% titanium; the volume ratio of the nickel-titanium alloy fiber to the sum of the components of the nickel-titanium alloy cement-based composite material is 1.8%;
the rubber vibration isolation layer (3) is made of a viscoelastic high-damping rubber material;
the rubber shock insulation layer (3) is fixed with the duct piece main body (1) by adopting an adhesive and nested structure (2).
2. The shock insulation segment for shield tunnel according to claim 1, wherein the nested structure (2) adopts connection of T-shaped groove blocks, namely, a T-shaped groove is arranged on one side of the segment main body (1) connected with the rubber shock insulation layer (3), and a T-shaped block matched with the T-shaped groove is arranged on one side of the rubber shock insulation layer (3) connected with the segment main body (1).
3. The shock insulation segment for a shield tunnel according to claim 1, wherein: in the nickel-titanium alloy cement-based composite material, the cement is common silicate cement with the mark number not lower than P.042.5; the average grain diameter of the quartz sand is 110 mu m, and the maximum grain diameter is 300 mu m; the fly ash is first-grade fly ash; the length of the nickel-titanium alloy fiber is about 3cm, and the diameter is about 0.25mm; the water reducer adopts a high-performance water reducer of the polymeric completion acid salt, the alkali content is less than 10%, the water reducing rate is more than 25%, and the normal pressure water-clearing rate is less than 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083447.2A CN109812279B (en) | 2019-01-29 | 2019-01-29 | Shock insulation duct piece for shield tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083447.2A CN109812279B (en) | 2019-01-29 | 2019-01-29 | Shock insulation duct piece for shield tunnel |
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| CN109812279A CN109812279A (en) | 2019-05-28 |
| CN109812279B true CN109812279B (en) | 2023-09-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550762A (en) * | 2021-08-06 | 2021-10-26 | 东南大学 | Vibration reduction type shield segment joint structure and shield segment vibration reduction method |
| CN115368059A (en) * | 2022-09-20 | 2022-11-22 | 广州大学 | Tunnel synchronous grouting shock insulation material and application thereof |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6458800A (en) * | 1987-08-26 | 1989-03-06 | Tokyu Kensetsu Kk | Earthquakeproof joint for tunnel |
| JPH11336107A (en) * | 1998-05-29 | 1999-12-07 | Taisei Corp | Joint structure for underwater tunnel |
| JP2000130092A (en) * | 1998-10-29 | 2000-05-09 | Kumagai Gumi Co Ltd | Injecting method of vibration isolation material in shield tunnel |
| JP2000328888A (en) * | 1999-05-19 | 2000-11-28 | Kumagai Gumi Co Ltd | Joint structure for segment |
| CN1789664A (en) * | 2005-12-27 | 2006-06-21 | 武汉理工大学 | Shield tunnel lining segment and preparation method thereof |
| CN204729106U (en) * | 2015-05-28 | 2015-10-28 | 北京工业大学 | A kind of prefabricated pipe section for subway sectional tunnel vibration and noise reducing |
| CN105041336A (en) * | 2015-07-06 | 2015-11-11 | 中国建筑股份有限公司 | Ultra-high performance hybrid fiber concrete shield segment and preparation method thereof |
| CN204920980U (en) * | 2015-07-31 | 2015-12-30 | 中铁第六勘察设计院集团有限公司 | Shield tunnel structure antidetonation device under water |
| CN106050263A (en) * | 2016-07-15 | 2016-10-26 | 苏州大学 | Shield tunnel segment structure and connecting structure thereof |
| CN106220068A (en) * | 2016-07-29 | 2016-12-14 | 兰州理工大学 | A kind of material for tunnel shock insulation and construction method thereof |
| CN106495621A (en) * | 2016-09-22 | 2017-03-15 | 黄贺明 | A kind of inorganic high-performance duct pieces of shield tunnel |
| CN206035499U (en) * | 2016-06-24 | 2017-03-22 | 中国电建集团华东勘测设计研究院有限公司 | Adaptable shield tunnel structure of damping shock insulation |
| CN206111203U (en) * | 2016-09-29 | 2017-04-19 | 深圳市巍特工程技术有限公司 | Shield tunnel |
| CN106593464A (en) * | 2016-11-24 | 2017-04-26 | 山东科技大学 | Tunnel axial damping and energy absorbing device and tunnel lining structure with same |
| CN107366544A (en) * | 2017-08-03 | 2017-11-21 | 华东交通大学 | A kind of piston type particle damping energy dissipation vibration damping subway segment |
| CN107842372A (en) * | 2017-11-22 | 2018-03-27 | 浙江海洋大学 | A kind of tunnel structure of high-strength anti-seismic |
| CN207934906U (en) * | 2018-03-02 | 2018-10-02 | 北京交通大学 | Underwater shield tunnel shock resisting composite lining structure |
| CN208024359U (en) * | 2018-04-08 | 2018-10-30 | 济南轨道中铁管片制造有限公司 | A kind of shield duct piece with safeguard structure |
-
2019
- 2019-01-29 CN CN201910083447.2A patent/CN109812279B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6458800A (en) * | 1987-08-26 | 1989-03-06 | Tokyu Kensetsu Kk | Earthquakeproof joint for tunnel |
| JPH11336107A (en) * | 1998-05-29 | 1999-12-07 | Taisei Corp | Joint structure for underwater tunnel |
| JP2000130092A (en) * | 1998-10-29 | 2000-05-09 | Kumagai Gumi Co Ltd | Injecting method of vibration isolation material in shield tunnel |
| JP2000328888A (en) * | 1999-05-19 | 2000-11-28 | Kumagai Gumi Co Ltd | Joint structure for segment |
| CN1789664A (en) * | 2005-12-27 | 2006-06-21 | 武汉理工大学 | Shield tunnel lining segment and preparation method thereof |
| CN204729106U (en) * | 2015-05-28 | 2015-10-28 | 北京工业大学 | A kind of prefabricated pipe section for subway sectional tunnel vibration and noise reducing |
| CN105041336A (en) * | 2015-07-06 | 2015-11-11 | 中国建筑股份有限公司 | Ultra-high performance hybrid fiber concrete shield segment and preparation method thereof |
| CN204920980U (en) * | 2015-07-31 | 2015-12-30 | 中铁第六勘察设计院集团有限公司 | Shield tunnel structure antidetonation device under water |
| CN206035499U (en) * | 2016-06-24 | 2017-03-22 | 中国电建集团华东勘测设计研究院有限公司 | Adaptable shield tunnel structure of damping shock insulation |
| CN106050263A (en) * | 2016-07-15 | 2016-10-26 | 苏州大学 | Shield tunnel segment structure and connecting structure thereof |
| CN106220068A (en) * | 2016-07-29 | 2016-12-14 | 兰州理工大学 | A kind of material for tunnel shock insulation and construction method thereof |
| CN106495621A (en) * | 2016-09-22 | 2017-03-15 | 黄贺明 | A kind of inorganic high-performance duct pieces of shield tunnel |
| CN206111203U (en) * | 2016-09-29 | 2017-04-19 | 深圳市巍特工程技术有限公司 | Shield tunnel |
| CN106593464A (en) * | 2016-11-24 | 2017-04-26 | 山东科技大学 | Tunnel axial damping and energy absorbing device and tunnel lining structure with same |
| CN107366544A (en) * | 2017-08-03 | 2017-11-21 | 华东交通大学 | A kind of piston type particle damping energy dissipation vibration damping subway segment |
| CN107842372A (en) * | 2017-11-22 | 2018-03-27 | 浙江海洋大学 | A kind of tunnel structure of high-strength anti-seismic |
| CN207934906U (en) * | 2018-03-02 | 2018-10-02 | 北京交通大学 | Underwater shield tunnel shock resisting composite lining structure |
| CN208024359U (en) * | 2018-04-08 | 2018-10-30 | 济南轨道中铁管片制造有限公司 | A kind of shield duct piece with safeguard structure |
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| CN109812279A (en) | 2019-05-28 |
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