CN104948201A - Tunnel antiknock protection composite steel plate - Google Patents
Tunnel antiknock protection composite steel plate Download PDFInfo
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- CN104948201A CN104948201A CN201510383702.7A CN201510383702A CN104948201A CN 104948201 A CN104948201 A CN 104948201A CN 201510383702 A CN201510383702 A CN 201510383702A CN 104948201 A CN104948201 A CN 104948201A
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Abstract
The invention discloses a tunnel antiknock protection composite steel plate, and belongs to the technical field of underground construction disaster prevention and reduction. The tunnel antiknock protection composite steel plate is designed to solve the technical problems that the tunnel antiknock protection capacity is low. The tunnel antiknock protection composite steel plate is composed of a fiberglass reinforced plastic layer, polyester fiber layers, a concrete layer and an alloy quenched and tempered steel plate layer. The fiberglass reinforced plastic layer is located on the outer side of the tunnel antiknock protection composite steel plate and has the advantages of being light in weight, high in strength and resistant to high temperature. The two polyester fiber layers are arranged, located below the fiberglass reinforced plastic layer and above the alloy quenched and tempered steel plate layer respectively and capable of absorbing energy of explosive shock waves effectively. The concrete layer is located in the middle of the tunnel antiknock protection composite steel plate and is the main part for bearing the explosive impact load. The alloy quenched and tempered steel plate layer has the advantages of being high in strength and good in toughness and located on the inner side of the tunnel antiknock protection composite steel plate. The tunnel antiknock protection composite steel plate is simple in structure, convenient to mount, high in engineering practicability and capable of improving the antiknock protection capacity of a tunnel effectively.
Description
Technical field
The invention belongs to underground construction to prevent and reduce natural disasters technical field, be specifically related to a kind of composite steel plate, particularly relate to tunnel antiknock protection composite steel plate.
Background technology
Since the sixties in 20th century, terrorist activity is spread unchecked day by day, and tunnel, as a kind of important public transit facility, is important lifeline engineering, very easily becomes the target of the attack of terrorism.Tunnel easily causes a large amount of casualtiess when attacked by the terrorist bombings, as tunnel structure produces destruction simultaneously, will cause the disaster and economic loss that are difficult to expect, therefore, must carry out the antiknock Protective Research in tunnel.
At present, antiknock means of defence in tunnel both domestic and external mainly comprises injection strong concrete, lays polyester fiber or foamed material, employing high intensity carbon fiber material or High Strength Steel Wire Mesh And Polymer Mortar layer reinforced steel concrete component etc.Engineering practice shows, the effect of these methods in tunnel antiknock protection is not fairly obvious, therefore, needs to invent a kind of new tunnel antiknock protection composite steel plate, effectively to improve the antiknock barrier propterty in tunnel.
Summary of the invention
The object of this invention is to provide a kind of tunnel antiknock protection composite steel plate, this composite steel plate not only effectively can solve the low technical barrier of tunnel antiknock protective capacities under Blast Loads, and structure is simple, easy construction, Technological Economy are feasible.
The technical solution used in the present invention is: tunnel antiknock protection composite steel plate, and it is made up of polyester fiberglass steel layer, layer of polyester fiber, layer of concrete and quenching and tempering steel flaggy; Described polyester fiberglass steel layer is positioned at the outside of tunnel antiknock protection composite steel plate, has high-strength light and resistant to elevated temperatures feature; Described layer of polyester fiber is divided into two-layer, lays respectively at the below of polyester fiberglass steel layer and the top of quenching and tempering steel flaggy, effectively can absorb the energy of explosion wave; Described layer of concrete is positioned at the centre of tunnel antiknock protection composite steel plate, is the major part of bearing Blast Load; Described quenching and tempering steel flaggy has that intensity is high, the feature of good toughness, is positioned at the inner side of tunnel antiknock protection composite steel plate.
Construction usage method of the present invention is: tunnel antiknock protection composite steel plate, during use, first the tunnel antiknock protection composite steel plate of corresponding length is intercepted according to the cross dimensions in tunnel, then the foreign material of tunnel surface are removed, and according to the relevant position construction set bolt of designing requirement in tunnel, then by the method that polyester fiberglass steel layer is outside, tunnel antiknock protection composite steel plate is fixed on the inwall in tunnel, finally by nut, tunnel antiknock protection composite steel plate is fixed.
Operating principle of the present invention is: tunnel antiknock protection composite steel plate, it is made up of polyester fiberglass steel layer, layer of polyester fiber, layer of concrete and quenching and tempering steel flaggy, and polyester fiberglass steel layer has high-strength light, corrosion-resistant, resistant to elevated temperatures feature, can bear the percussion of explosive load preferably; Layer of polyester fiber has good tensile property, effectively can absorb the energy of explosion wave; The compressive property of layer of concrete is better, is the major part of bearing Blast Load; The intensity of quenching and tempering steel flaggy is high, good toughness, can strengthen the ability that composite steel plate bears explosive load.Polyester fiberglass steel layer, layer of polyester fiber, layer of concrete and quenching and tempering steel flaggy jointly carry, mutually coordinate, thus reach the object of energy and the opposing blast impulse absorbing explosion wave, effectively reduce the impact damage of explosive load to tunnel.
The invention has the beneficial effects as follows: lightweight, the structure of tunnel antiknock protection composite steel plate is simple, easy construction, engineering practicability are strong, and there is the function absorbing blast impulse wave energy and opposing Blast Shock simultaneously, thus effectively improve the antiknock barrier propterty in tunnel.
Accompanying drawing explanation
Fig. 1 is tunnel of the present invention antiknock protection composite steel plate overall structure schematic diagram.
Fig. 2 is tunnel of the present invention antiknock protection composite steel plate cross-sectional view.
Fig. 3 is tunnel of the present invention antiknock protection composite steel plate using state schematic diagram.
Marginal data: 1-tunnel antiknock protection composite steel plate; 2-polyester fiberglass steel layer; 3-layer of polyester fiber; 4-layer of concrete; 5-quenching and tempering steel flaggy; 6-tunnel; 7-set bolt; 8-nut.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As depicted in figs. 1 and 2, tunnel of the present invention antiknock protection composite steel plate 1, it is made up of polyester fiberglass steel layer 2, layer of polyester fiber 3, layer of concrete 4 and quenching and tempering steel flaggy 5; Described polyester fiberglass steel layer 2 is positioned at the outside of tunnel antiknock protection composite steel plate 1, has high-strength light and resistant to elevated temperatures feature; Described layer of polyester fiber 3 is divided into two-layer, lays respectively at the below of polyester fiberglass steel layer 2 and the top of quenching and tempering steel flaggy 5, effectively can absorb the energy of explosion wave; Described layer of concrete 4 is positioned at the centre of tunnel antiknock protection composite steel plate 1, is the major part of bearing Blast Load; Described quenching and tempering steel flaggy 5 has that intensity is high, the feature of good toughness, is positioned at the inner side of tunnel antiknock protection composite steel plate 1.
As shown in Figure 3, during use, first the tunnel antiknock protection composite steel plate 1 of corresponding length is intercepted according to the cross dimensions in tunnel 6, then the foreign material on surface, tunnel 6 are removed, and according to the relevant position construction set bolt 7 of designing requirement in tunnel 6, then by the method that polyester fiberglass steel layer 2 is outside, tunnel antiknock protection composite steel plate 1 is fixed on the inwall in tunnel 6, finally by nut 8, tunnel antiknock protection composite steel plate 1 is fixed.
Claims (1)
1. a tunnel antiknock protection composite steel plate, it is characterized in that, it is made up of polyester fiberglass steel layer, layer of polyester fiber, layer of concrete and quenching and tempering steel flaggy; Described polyester fiberglass steel layer is positioned at the outside of tunnel antiknock protection composite steel plate, has high-strength light and resistant to elevated temperatures feature; Described layer of polyester fiber is divided into two-layer, lays respectively at the below of polyester fiberglass steel layer and the top of quenching and tempering steel flaggy, effectively can absorb the energy of explosion wave; Described layer of concrete is positioned at the centre of tunnel antiknock protection composite steel plate, is the major part of bearing Blast Load; Described quenching and tempering steel flaggy has that intensity is high, the feature of good toughness, is positioned at the inner side of tunnel antiknock protection composite steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510383702.7A CN104948201A (en) | 2015-07-03 | 2015-07-03 | Tunnel antiknock protection composite steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510383702.7A CN104948201A (en) | 2015-07-03 | 2015-07-03 | Tunnel antiknock protection composite steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948201A true CN104948201A (en) | 2015-09-30 |
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ID=54163209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510383702.7A Pending CN104948201A (en) | 2015-07-03 | 2015-07-03 | Tunnel antiknock protection composite steel plate |
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| Country | Link |
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| CN (1) | CN104948201A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367197A (en) * | 2017-09-01 | 2017-11-21 | 包头北方嘉瑞防务科技有限公司 | A kind of high drag modularization the library protective unit of lightweight |
| CN111473707A (en) * | 2020-04-14 | 2020-07-31 | 中国五冶集团有限公司 | Tunnel blasting construction protection shed |
| CN117266878A (en) * | 2023-11-09 | 2023-12-22 | 湖南省交通规划勘察设计院有限公司 | Prefabricated explosion-proof box culvert that tunnel was used |
-
2015
- 2015-07-03 CN CN201510383702.7A patent/CN104948201A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367197A (en) * | 2017-09-01 | 2017-11-21 | 包头北方嘉瑞防务科技有限公司 | A kind of high drag modularization the library protective unit of lightweight |
| CN107367197B (en) * | 2017-09-01 | 2024-02-06 | 包头北方嘉瑞防务科技有限公司 | Light high-resistance modularized warehouse body protection unit |
| CN111473707A (en) * | 2020-04-14 | 2020-07-31 | 中国五冶集团有限公司 | Tunnel blasting construction protection shed |
| CN111473707B (en) * | 2020-04-14 | 2023-07-18 | 中国五冶集团有限公司 | Tunnel blasting construction protection canopy |
| CN117266878A (en) * | 2023-11-09 | 2023-12-22 | 湖南省交通规划勘察设计院有限公司 | Prefabricated explosion-proof box culvert that tunnel was used |
| CN117266878B (en) * | 2023-11-09 | 2024-03-15 | 湖南省交通规划勘察设计院有限公司 | Prefabricated explosion-proof box culvert that tunnel was used |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |