CN215164542U - Steel trestle structure for filling missing sidewalks of high and steep rock excavation slope - Google Patents
Steel trestle structure for filling missing sidewalks of high and steep rock excavation slope Download PDFInfo
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- CN215164542U CN215164542U CN202120885852.9U CN202120885852U CN215164542U CN 215164542 U CN215164542 U CN 215164542U CN 202120885852 U CN202120885852 U CN 202120885852U CN 215164542 U CN215164542 U CN 215164542U
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Abstract
The utility model relates to a mend steel trestle structure of neat high steep rock excavation slope disappearance packway. The utility model aims at providing a mend steel trestle structure of neat high steep rock excavation side slope disappearance packway can effectively solve the high slope excavation in-process and lead to the unable current problem of packway disappearance because of surpassing to dig to guarantee the current safety of side slope inspection staff or observation personnel on the high slope packway. The technical scheme of the utility model is that: the utility model provides a mend steel trestle structure of high steep rock excavation slope disappearance packway which characterized in that: the steel trestle is used for filling the missing part of the pavement, is fixed at the position horizontal to the pavement through a pavement supporting structure, and forms a new channel by combining the steel trestle and the pavement. The utility model is suitable for a side slope excavation engineering among civil engineering such as water conservancy and hydropower, building and traffic is particularly useful for arranging the high steep rock slope excavation packway of observation instrument.
Description
Technical Field
The utility model relates to a mend steel trestle structure of neat high steep rock excavation slope disappearance packway. The method is suitable for slope excavation engineering in civil engineering such as water conservancy and hydropower engineering, buildings, traffic engineering and the like, and is particularly suitable for excavating the packway on the steep rock slope with the observation instrument.
Background
In the construction of large-scale hydroelectric hydraulic engineering, high slope excavation engineering is mostly involved, such as high arch dam abutment excavation, stone yard excavation and the like. In order to ensure the safety of the construction period and the operation period of the excavated high slope and timely master the safety condition of key parts, a safety worker needs to regularly patrol the slope, monitoring instruments are arranged on the high and steep excavated slope, and an observer needs to regularly maintain the observation instruments, collect data and the like. In the actual side slope excavation process, when unfavorable geological structures such as unfavorable structural planes or steep dip cracks are met, the side slope berm is mostly subjected to an over-excavation phenomenon, so that the berm is lost, and personnel cannot pass.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the technical problem, the utility model provides a mend steel trestle structure of neat high steep rocky excavation side slope disappearance packway can effectively solve the high slope excavation in-process and lead to the unable current problem of packway disappearance because of the overexcavation to guarantee the current safety of side slope inspection personnel or observation personnel on the high slope packway.
The utility model adopts the technical proposal that: the utility model provides a mend steel trestle structure of high steep rock excavation slope disappearance packway which characterized in that: the steel trestle is used for filling the missing part of the pavement, is fixed at the position horizontal to the pavement through a pavement supporting structure, and forms a new channel by combining the steel trestle and the pavement.
Preferably, the pavement supporting structure is provided with a plurality of anchor bars, channel steel and connecting bars, the anchor bars are respectively arranged below the inner side and the outer side of the steel trestle, the anchor bars are inserted into bedrock of a missing part of the pavement, the channel steel for increasing the supporting stress area of the steel trestle is arranged between the anchor bars and the steel trestle, the channel steel is in welded connection with the anchor bars, the channel steel is in welded connection with the steel trestle, the anchor bars are connected with one another through the connecting bars, and the anchor bars are welded with the connecting bars.
As preferred, install handrail in the outside of steel trestle, handrail is formed by a plurality of horizontal handrails and the welding of vertical handrail, a plurality of dowel bars of evenly distributed around the bottom of vertical handrail, and in the dowel bar inserted the bedrock at packway disappearance position, dowel bar and vertical handrail welded connection.
Preferably, the steel trestle is made of a fish scale pattern steel plate.
The utility model has the advantages that: the utility model discloses simple structure, construction convenience, the construction does not relate to heavy material and equipment, is convenient for transport and construction on high abrupt slope packway. The steel trestle adopts the fish scale pattern steel plate, so that the safety of the riding track in the passing process is improved; channel steel is welded between the steel trestle and the anchor bars, so that the supporting stress area of the steel trestle is increased, and the structural stability of the steel trestle is ensured; the steel landing stage outside sets up the effective current safety of guarantee of handrail, and the last welding of handrail has the joint bar of anchor on the basement rock, has increased handrail's stability.
Drawings
Fig. 1 is a typical cross-sectional layout of the present invention.
Fig. 2 is a schematic plan view of the present invention.
Fig. 3 is a vertical view of the steel trestle structure of the present invention.
Fig. 4 is a layout view of the handrail of the present invention.
Fig. 5 is a sectional view a-a of fig. 4.
In the figure: 1. handrail, 101, dowel bar, 102, horizontal handrail, 103, vertical handrail, 2, steel trestle, 3, channel-section steel, 4, anchor bar, 401, the connection muscle.
Detailed Description
The embodiment is a steel trestle structure for filling up a high and steep rock excavation slope missing pavement, and the steel trestle structure is provided with a steel trestle, a handrail and a supporting structure.
In the embodiment, the steel trestle is erected on the missing part of the pavement formed by excavation through the supporting structure, the steel trestle is supported at the same horizontal position as the existing pavement, the steel trestle and the pavement are combined to form a new channel, and the steel trestle adopts the fish scale pattern steel plate, so that the anti-skidding capacity is good, and the passing requirement of personnel is met.
In this embodiment, the steel trestle passes through the anchor bar support, and the anchor bar is arranged respectively in the inside and outside of steel trestle bottom packway, and the anchor bar adopts the C32 reinforcing bar, and long 1m, anchor go into basement rock length and be not less than 0.5m, and anchor bar top welding channel-section steel increases the lifting surface area of steel trestle, makes the steel trestle structure more stable. The outside anchor bars of the packway are connected through the contact bars, the exposed length of the inside anchor bars of the packway exceeds 0.5m and is also connected through the contact bars, the contact bars are C16 steel bars, and the contact bars are welded with the anchor bars.
In this embodiment, the handrail installed in the steel trestle outside is formed by horizontal handrail and the welding of vertical handrail, and horizontal handrail interval 0.4m arranges, and vertical handrail interval 1m arranges, has enclosed 3 dowels respectively around the bottom of every vertical handrail, and the dowel adopts the C25 reinforcing bar, long 1m, and the dowel anchor goes into bed rock 0.6m, and every dowel all with the two-sided welding of vertical handrail.
The above-mentioned embodiment is only used for explaining the utility model concept, and not to the limit of the utility model protection, and all utilize this concept to be right the utility model discloses carry out insubstantial change, all shall fall into the scope of protection of the utility model.
Claims (4)
1. The utility model provides a mend steel trestle structure of high steep rock excavation slope disappearance packway which characterized in that: the steel trestle is used for filling the missing part of the pavement, is fixed at the position horizontal to the pavement through a pavement supporting structure, and is combined with the missing pavement to form a new channel.
2. The steel trestle structure for supplementing missing packways on steep rocky excavation slopes according to claim 1, wherein: the road surface supporting structure is provided with a plurality of anchor bars, channel steel and connection bars, the anchor bars are arranged below the inner side and the outer side of the steel trestle respectively, the anchor bars are inserted into bedrock of a missing part of a packway, the channel steel for increasing the supporting stress area of the steel trestle is arranged between the anchor bars and the steel trestle, the channel steel is connected with the anchor bars in a welding mode, the channel steel is connected with the steel trestle in a welding mode, the anchor bars are connected with the connection bars in a connecting mode, and the anchor bars are welded with the connection bars.
3. The steel trestle structure for supplementing missing packways on steep rocky excavation slopes according to claim 1, wherein: install handrail in the outside of steel trestle, handrail is formed by a plurality of horizontal handrail and the welding of vertical handrail, a plurality of dowel bars of evenly distributed around the bottom of vertical handrail, and in the dowel bar inserted the bedrock at packway disappearance position, dowel bar and vertical handrail welded connection.
4. The steel trestle structure for supplementing missing packways on steep rocky excavation slopes according to claim 1, wherein: the steel trestle is made of a fish scale pattern steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120885852.9U CN215164542U (en) | 2021-04-27 | 2021-04-27 | Steel trestle structure for filling missing sidewalks of high and steep rock excavation slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120885852.9U CN215164542U (en) | 2021-04-27 | 2021-04-27 | Steel trestle structure for filling missing sidewalks of high and steep rock excavation slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215164542U true CN215164542U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120885852.9U Active CN215164542U (en) | 2021-04-27 | 2021-04-27 | Steel trestle structure for filling missing sidewalks of high and steep rock excavation slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215164542U (en) |
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2021
- 2021-04-27 CN CN202120885852.9U patent/CN215164542U/en active Active
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