CN216474595U - Rockfall protection shed tunnel - Google Patents
Rockfall protection shed tunnel Download PDFInfo
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- CN216474595U CN216474595U CN202122909360.1U CN202122909360U CN216474595U CN 216474595 U CN216474595 U CN 216474595U CN 202122909360 U CN202122909360 U CN 202122909360U CN 216474595 U CN216474595 U CN 216474595U
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Abstract
The utility model provides a rockfall protection shed tunnel, relates to highway railway bridge tunnel construction technical field, and it includes that bottom basis, steel buckled plate pipe are contained, shaped steel skeleton, protection network connector, multilayer protection network, the outside installation shaped steel skeleton of steel buckled plate pipe are contained, a plurality of protection network connectors are installed along the hoop in proper order to going up of shaped steel skeleton, shaped steel skeleton's bottom is fixed on the basis of bottom, upward installs multilayer protection net piece by the bottom in proper order on the protection network connector, constitutes multilayer protection network structure. The utility model solves the problems of complex engineering, high implementation difficulty, high investment, large influence by terrain and the like of the traditional dangerous rockfall comprehensive treatment scheme, and has the advantages of high shock resistance, convenient construction and easy maintenance.
Description
Technical Field
The utility model relates to the technical field of highway, railway, bridge and tunnel construction, in particular to a rockfall protection shed tunnel and a construction method thereof.
Background
At present, most of medium and small bridges and culverts in China are of traditional masonry or reinforced concrete structures, and have obvious defects. The masonry amount is large, the design construction period is long, the structure is easy to crack, the later maintenance cost is huge, the construction of the reinforced concrete structure is influenced by the environmental temperature, the health-preserving age and the like, and the application is limited under the conditions of bad weather and short construction period.
In view of the existing problems, it has become a trend to replace the traditional materials with a novel structure which is reasonable, economical, convenient and fast. The corrugated steel plate is a novel product which can be widely applied to various roads and bridges, has the advantages of small interface, good flexibility, light weight, convenience in production and transportation, simplicity in construction, short construction period and the like compared with a reinforced concrete structure, is generally applied to road culverts, and also begins to be applied to small and medium bridges in nearly two years. At present, the technology of the steel corrugated plate bridge is still a new field in China, and the span of the constructed bridge is small. Because the bridge structure is in an open section form, the bearing capacity of the steel corrugated plate has a certain limit, so that the stability of the structure is ensured, the spanning capacity of the structure is increased, the application range of the structure is expanded, the dead weight of filling soil on the arch is further reduced, and the strength and the rigidity of the main arch ring are improved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model aims to provide the rockfall protection shed tunnel and the construction method thereof, which solve the problems of complex engineering, high implementation difficulty, high investment, great influence by terrain and the like of the traditional dangerous rockfall comprehensive treatment scheme, and have the advantages of high impact resistance, convenience in construction, easiness in maintenance and the like.
In order to solve the problems, the utility model adopts the following technical scheme: a rockfall protection shed tunnel is characterized by comprising a bottom foundation, a corrugated steel plate pipe culvert, a profile steel framework, a protective net connector and a plurality of layers of protective nets,
the outer side of the corrugated steel plate pipe culvert is provided with a steel skeleton,
a plurality of protective net connectors are sequentially arranged on the upper edge of the profile steel framework in the circumferential direction, the bottom of the profile steel framework is fixed on a bottom foundation,
the protective net connector is sequentially provided with a plurality of layers of protective net sheets from bottom to top to form a multi-layer protective net structure.
Further: the steel buckled plate pipe culvert is formed by the concatenation of polylith arc steel buckled plate, the bottom of steel buckled plate pipe culvert is passed through the built-in fitting and is linked to each other with the bottom basis.
Further: the middle parts of the profile steel skeletons are connected through profile steel clamping plates; the section steel framework is connected with the corrugated steel pipe culvert through section steel wing plates; the bottom of the profile steel framework is independently connected with a bottom foundation through an embedded part.
Further: the protective net connector is fixedly connected with the section steel framework through a bolt; the protective net connectors are sequentially fixed along the circumferential direction of the section steel framework; a plurality of supporting rope through holes are arranged on the protective net connector in a layered mode.
Further: the multilayer protective net consists of multiple layers of protective net sheets; the protective net piece is sewn on the protective net connector through the sewing rope on each layer.
The utility model has the beneficial effects that:
1. the construction method solves the problems of complex engineering, high implementation difficulty, high investment, great influence by terrain and the like of the traditional dangerous rockfall comprehensive treatment scheme, and has the advantages of high impact resistance, convenient construction and easy maintenance.
2. The shed tunnel of the construction method mainly adopts the steel corrugated plates, the profile steel and the protective net, has light self-weight and strong load bearing capacity, can be widely applied to various steep terrain areas in mountainous areas such as tunnel portals of highway bridges and railway bridges, and has wide application range.
3. The construction is convenient, the main components are all processed in factories and assembled on site, the construction efficiency is high, the quality is easy to control, and the method is environment-friendly and energy-saving. The used corrugated steel plate, the section steel and the protective net are light in weight of a single component, flexible in field implementation and more suitable for assembly type construction.
4. The direct impact object of falling rocks is protection network and shaped steel skeleton, and rethread shaped steel skeleton unloads power to whole corrugated steel pipe culvert structure on, can play the protection inlayer buckled plate, makes it receive the disease to reduce to the minimum, structure safe and reliable.
Drawings
The utility model is further described with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of B in FIG. 2;
FIG. 4 is an enlarged view of A in FIG. 2;
fig. 5 is a schematic structural view of the protection net connector of the present invention;
in the figure: 1-bottom foundation, 101-embedded part, 2-steel corrugated pipe culvert, 201-steel corrugated plate, 3-steel skeleton, 301-steel joint connecting plate, 302-steel wing plate, 4-protective net connector, 401-supporting rope via hole, 5-multilayer protective net and 501 protective net piece.
Detailed Description
As shown in fig. 1 to 5, a rockfall protection shed tunnel includes a bottom foundation 1, corrugated steel plate pipe culverts 2, a steel skeleton 3, a protective net connector 4, and a plurality of layers of protective nets 5.
And the steel framework 3 is arranged on the outer side of the steel corrugated plate pipe culvert 2.
A plurality of protective net connectors 4 are sequentially installed on the upper edge of the steel skeleton 3 in the circumferential direction, and the bottom of the steel skeleton 3 is fixed on the bottom foundation 1.
The protective net connectors 4 are sequentially provided with a plurality of layers of protective net sheets 501 from bottom to top to form a multi-layer protective net 5 structure.
Steel buckled plate pipe culvert 2 form by the concatenation of polylith arc steel buckled plate 201, the bottom of steel buckled plate pipe culvert 2 is passed through built-in fitting 101 and is linked to each other with bottom basis 1.
The middle parts of the section steel frameworks 3 are connected through section steel clamping plates; the steel section framework 3 is connected with the corrugated steel pipe culvert 2 through a steel section wing plate 302; the bottom of the steel skeleton 3 is independently connected with the bottom foundation 1 through an embedded part 101.
The protective net connector 4 is fixedly connected with the steel skeleton 3 through bolts; the protective net connectors 4 are sequentially fixed along the circumferential direction of the steel skeleton 3; a plurality of support rope through holes 401 are arranged on the protective net connector 4 in a layered manner.
The multi-layer protective net 5 consists of a plurality of layers of protective net sheets 501; the protective mesh 501 is sewn on the protective mesh connector 4 through the suture ropes of each layer.
The construction method of the rockfall protection shed tunnel comprises the following steps:
step 1: according to the maximum impact energy required to be protected by the shed tunnel, the structural sizes of a corrugated steel plate, a steel section skeleton 3, a protective net connector 4, foundation bolts and an independent foundation 1 are designed;
step 2: binding reinforcement cage rings of two strip-shaped independent foundations 1 on site, binding and fixing embedded parts 101 on the reinforcement cage rings in advance, and pouring the strip-shaped foundations by using a formwork;
and step 3: a temporary construction platform is erected, arc-shaped steel corrugated plates 201 are fixed on a bottom foundation 1 through embedded parts 101, then the arc-shaped steel corrugated plates 201 are sequentially installed, and the arc-shaped steel corrugated plates are spliced into an arched steel corrugated plate pipe culvert 2 through bolts;
and 4, step 4: fixing the profile steel framework 3 on the bottom foundation 1 through the embedded part 101, and splicing the multi-section profile steel and the bottom profile steel into the arched profile steel framework 3 through the profile steel node connecting plate 301; the section steel wing plate is arranged above the steel corrugated plate 201 and is fixed in an overlapping mode by penetrating bolts through bolt holes on the steel corrugated plate 201 and bolt holes on the section steel outer side wing plate in an annular mode;
and 5: the protective net connector 4 is fixedly connected with the section steel framework 3 through bolts through holes of the flange plate at the bottom of the protective net connector 4, and the protective net connector and the section steel framework are sequentially installed along the annular direction of the section steel framework 3;
step 6: repeating the step 4, the step 5 and the step 6 until all the steel corrugated pipes 2, the steel frameworks 3 and the protective connectors 4 are installed in the protective range;
and 7: a protective net supporting rope penetrates through the supporting rope through hole 401 at the innermost layer of the protective net connector 4, and the protective net 501 is connected to the protective net connector 4 through a sewing rope;
and 8: repeating the step 7 until all the innermost protective nets are connected;
and step 9: support ropes are arranged on the support rope through holes 401 in the middle layer of the protective net connector 4 in a penetrating mode, and the protective net piece 501 is connected to the protective net connector 4 through sewing ropes;
step 10: repeating the step 9 until all the middle-layer protective nets are connected;
step 11: support ropes are arranged on the support rope through holes 401 on the outermost layer of the protective net connector 4 in a penetrating mode, and the protective net piece 501 is connected to the protective net connector 4 through sewing ropes;
step 12: repeating the step 11 until all the outermost protective nets are connected;
step 13: and (5) constructing auxiliary facilities at the tunnel portal and carrying out traffic operation.
The present invention is not limited to the above-described embodiments.
Claims (5)
1. A rockfall protection shed tunnel is characterized by comprising a bottom foundation, a corrugated steel plate pipe culvert, a profile steel framework, a protective net connector and a plurality of layers of protective nets,
the outer side of the corrugated steel plate pipe culvert is provided with a steel skeleton,
a plurality of protective net connectors are sequentially arranged on the upper edge of the profile steel framework in the circumferential direction, the bottom of the profile steel framework is fixed on a bottom foundation,
the protective net connector is sequentially provided with a plurality of layers of protective net sheets from bottom to top to form a multi-layer protective net structure.
2. The rockfall protection shed tunnel according to claim 1, wherein the steel corrugated plate pipe culvert is formed by splicing a plurality of arc-shaped steel corrugated plates, and the bottom of the steel corrugated plate pipe culvert is connected with a bottom foundation through embedded parts.
3. A rockfall protection shed tunnel according to claim 1 or 2, wherein the steel frameworks are connected by steel clamping plates; the section steel framework is connected with the corrugated steel pipe culvert through section steel wing plates; the bottom of the profile steel framework is independently connected with a bottom foundation through an embedded part.
4. A rockfall protection shed tunnel according to claim 3, wherein the protective net connectors are fixedly connected with the steel skeleton through bolts; the protective net connectors are sequentially fixed along the circumferential direction of the section steel framework; a plurality of supporting rope through holes are arranged on the protective net connector in a layered mode.
5. A rockfall protection shed tunnel according to claim 3, wherein the multiple layers of protective nets are composed of multiple layers of protective net sheets; the protective net piece is sewn on the protective net connector through the sewing rope on each layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122909360.1U CN216474595U (en) | 2021-11-24 | 2021-11-24 | Rockfall protection shed tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122909360.1U CN216474595U (en) | 2021-11-24 | 2021-11-24 | Rockfall protection shed tunnel |
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| CN216474595U true CN216474595U (en) | 2022-05-10 |
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| CN202122909360.1U Active CN216474595U (en) | 2021-11-24 | 2021-11-24 | Rockfall protection shed tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016448A (en) * | 2021-11-24 | 2022-02-08 | 河北丞璐建设工程有限公司 | Rockfall protection shed tunnel and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016448A (en) * | 2021-11-24 | 2022-02-08 | 河北丞璐建设工程有限公司 | Rockfall protection shed tunnel and construction method thereof |
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