CN215925595U - Steel temporary bridge device for transporting earth outside cross pipeline - Google Patents
Steel temporary bridge device for transporting earth outside cross pipeline Download PDFInfo
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- CN215925595U CN215925595U CN202121594521.6U CN202121594521U CN215925595U CN 215925595 U CN215925595 U CN 215925595U CN 202121594521 U CN202121594521 U CN 202121594521U CN 215925595 U CN215925595 U CN 215925595U
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Abstract
The utility model relates to a steel temporary bridge device for transporting earth outside across a pipeline. The sleeper comprises a lower sleeper layer, an upper sleeper layer, a lower steel structure frame, an upper steel structure frame and a steel plate layer from bottom to top in sequence; the lower sleeper layer comprises a first lower sleeper and a second lower sleeper which are arranged separately, the upper sleeper layer comprises a first upper sleeper and a second upper sleeper which are arranged separately, the first upper sleeper is positioned on the first lower sleeper, and the second upper sleeper is positioned on the second lower sleeper; the lower steel structure frame is composed of a plurality of I-shaped steels, the upper steel structure frame is composed of a plurality of I-shaped steels, and the I-shaped steels of the lower steel structure frame and the I-shaped steels of the upper steel structure frame are connected in a welding mode at the connecting position; the steel plate layer is formed by splicing steel plates, and each steel plate is welded with the I-shaped steel of the upper steel frame; one end of the combined bridge body is provided with a first soil slope, and the other end of the combined bridge body is provided with a second soil slope. The steel temporary bridge device can be quickly constructed, provides enough support for an earth moving vehicle and plays a role in protecting a buried pipeline.
Description
Technical Field
The utility model belongs to the technical field of earthwork engineering facilities, and particularly relates to a steel temporary bridge device for transporting earthwork outside a pipeline.
Background
Earthwork engineering is one of the main engineering in construction engineering, including the aspects of all earthwork lashing, filling, transportation, drainage, precipitation and the like. In civil engineering, the earthwork is as follows: the method comprises the steps of field leveling, roadbed excavation, civil air defense engineering excavation, terrace filling, roadbed filling and foundation pit backfilling. The reasonable deployment scheme of the earthwork is needed to be made and the arrangement is planned in a comprehensive way in order to reasonably arrange a construction plan and avoid arranging the earthwork in rainy season as much as possible and simultaneously implement the principles of not occupying or occupying less farmland and being beneficial to land improvement and field building in order to reduce the construction cost of the earthwork and stone engineering.
In some earthwork projects, a construction access needs to cross a gas pipeline (including other pipelines such as a tap water pipeline, an oil pipeline and the like), the gas pipeline is generally buried underground, when an earthwork vehicle passes above the gas pipeline, the underground gas pipeline is generally subjected to the pressure transmitted by an upper soil layer to easily generate structural damage and cause the leakage of the gas pipeline due to the problems of high load of the earthwork vehicle, large transportation amount outside the earthwork, frequent passing and moving of the earthwork vehicle and the like, and therefore, the protection of the pipeline which is already detected and is positioned on the passing path of the earthwork vehicle in the earthwork projects becomes one of important contents for the earthwork construction.
In the existing protection measures, the strength of the soil layer is generally enhanced by arranging a thick steel plate on the surface of the soil layer above the pipeline, and an earth vehicle passes through the thick steel plate when passing across the pipeline. In practice, it has been found that the above reinforcement does not sufficiently solve the problem of pipe damage, and that the pressure from the earth moving vehicle can be transmitted through the thick steel plate also to the soil layer below and to the pipe. In order to solve the above problems, it is necessary to develop and design a bridge device spanning a pipeline, and considering the particularity of an earthwork, the bridge device needs to meet the requirements of rapid construction, i.e. the construction process is required to be convenient and rapid (so it may be called as a temporary bridge), and the prior art does not have such temporary bridge facilities, and needs to be developed and designed according to the requirements.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel temporary bridge device which can be quickly constructed and provides enough support for an earthwork vehicle for transporting outside the earthwork across a pipeline, and the steel temporary bridge device is arranged above a soil layer where the pipeline is located and plays a role in protecting an underground pipeline.
The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: a steel temporary bridge device for cross-pipeline earthwork outward transportation sequentially comprises a lower sleeper layer, an upper sleeper layer, a lower steel structure frame, an upper steel structure frame and a steel plate layer from bottom to top, wherein the lower sleeper layer is arranged on the surface of a soil layer where a pipeline is located; the lower sleeper layer comprises a first lower sleeper and a second lower sleeper which are arranged separately, the upper sleeper layer comprises a first upper sleeper and a second upper sleeper which are arranged separately, the first upper sleeper is positioned on the first lower sleeper, and the second upper sleeper is positioned on the second lower sleeper; the lower steel structure frame is composed of a plurality of I-shaped steels, the upper steel structure frame is composed of a plurality of I-shaped steels, and the I-shaped steels of the lower steel structure frame and the I-shaped steels of the upper steel structure frame are connected in a welding mode at the connecting position; the steel plate layer is formed by splicing steel plates, and each steel plate is welded with the I-shaped steel of the upper steel frame; one end of the combined bridge body is provided with a first soil slope, and the other end of the combined bridge body is provided with a second soil slope.
The utility model has the advantages and positive effects that:
compared with the existing device for protecting the buried pipeline applied to the earthwork engineering, the steel temporary bridge device for the earthwork outward transportation of the cross pipeline, which is reasonable in structural design, has the advantages that the main body part is composed of the lower sleeper layer, the upper sleeper layer, the lower steel structure frame, the upper steel structure frame and the steel plate layer, so that the whole steel temporary bridge device is easy to construct on site, and convenience is provided for the earthwork outward transportation engineering.
The first sleeper and first sleeper, second sleeper and second on sleeper have constituted the buttress at the both ends of steel temporary bridge under the separation set up, make two steel structure frames and the steel deck at middle part constitute stable bridge structures, provide sufficient support for current earth moving vehicle, have promoted the current stability of vehicle. Meanwhile, the two buttresses enable the bridge structure to cross two sides above the pipeline, and when an earthwork vehicle passes on the steel temporary bridge, the pressure generated by the earthwork vehicle cannot be transmitted to a soil layer and the pipeline below the earthwork vehicle, so that the pipeline is well protected. The steel temporary bridge device is applied to earthwork engineering, effectively ensures the safety of an underground pipeline, eliminates potential safety hazards of construction, and is favorable for smooth progress of engineering.
Preferably: the length direction of the sleeper on the lower sleeper layer is parallel to the central line direction of the pipeline, and the length direction of the sleeper on the upper sleeper layer is parallel to the central line direction of the pipeline.
Preferably: no gap exists between the sleepers of the first lower sleeper, between the sleepers of the second lower sleeper, between the sleepers of the first upper sleeper and between the sleepers of the second upper sleeper.
Preferably: the I-steel of lower steel structure frame is parallel and equidistant setting, and the I-steel of lower steel structure frame sets up with the sleeper on last sleeper layer is perpendicular.
Preferably: the I-steel of the upper steel structure frame is parallel to and arranged at equal intervals, and the I-steel of the upper steel structure frame is perpendicular to the I-steel of the lower steel structure frame.
Preferably: the steel plates forming the steel plate layer are continuously spliced, and no gap exists between the steel plates.
Preferably: the slopes of the first soil slope and the second soil slope are both 1: 5.
Preferably: the center and the left and right edges of the steel temporary bridge are respectively provided with a settlement auxiliary observation assembly, and the settlement auxiliary observation assemblies are observation steel plates welded at the center of the steel deck and the left and right edges of the lower steel framework.
Preferably: and a surface soil covering layer is arranged above the steel plate layer, and two ends of the surface soil covering layer are respectively connected with the tops of the first soil slope and the second soil slope.
Drawings
Fig. 1 is a schematic front view of the present invention.
In the figure:
1. a first soil slope; 2. a steel plate layer; 3. covering a soil layer on the surface; 4. feeding a steel structure frame; 5. a steel structure frame is arranged; 6. putting a sleeper layer on the pillow; 7. a lower sleeper layer; 8. a second soil slope; 9. a pipeline.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail.
Referring to fig. 1, the steel temporary bridge device for transporting earth over a pipeline outwards comprises a lower sleeper layer 7, an upper sleeper layer 6, a lower steel frame 5, an upper steel frame 4 and a steel plate layer 2 from bottom to top in sequence. Wherein, the lower sleeper layer 7 is arranged on the surface of the soil layer where the pipeline 9 is positioned. As shown in the figure, the pipeline 9 is located below the approximate middle of the constructed steel temporary bridge device, namely the steel temporary bridge spans above the pipeline 9, so that the pressure generated by the earth moving vehicles passing through the steel temporary bridge is not transferred to the soil layer above the pipeline 9 and is not transferred to the pipeline 9, and the steel temporary bridge has effective protection effect on the buried pipeline 9.
Lower sleeper layer 7 is including the first sleeper and the second sleeper that the separation set up down, and upper sleeper layer 6 is including the first sleeper and the second sleeper that the separation set up on, and first sleeper is located first sleeper, and the second is located second sleeper. As shown in the figure, the first upper sleeper and the first lower sleeper form a buttress at one end of the steel temporary bridge, and the second upper sleeper and the second lower sleeper form a buttress at the other end of the steel temporary bridge, wherein the two buttresses stably support the bridge structure in the middle.
Specifically, as shown in the figure, the first lower sleeper includes 2-4 individual sleepers, the second upper sleeper includes 2-4 individual sleepers, and the second lower sleeper includes 2-4 individual sleepers. In this embodiment, the length direction of the crossties of the lower crosstie layer 7 is parallel to the center line direction of the duct 9, and the length direction of the crossties of the upper crosstie layer 6 is parallel to the center line direction of the duct 9.
In order to ensure the compactness of the formed buttress, in the embodiment, no gap exists among the sleepers of the first lower sleeper, among the sleepers of the second lower sleeper, among the sleepers of the first upper sleeper and among the sleepers of the second upper sleeper, namely, the sleepers at all positions are densely arranged, and no gap is formed in the middle. This has guaranteed the support intensity of buttress, has effectively avoided the buttress to become loose under the repeated roll of the above earth vehicle.
The lower steel framework 5 is composed of a plurality of I-shaped steels, the upper steel framework 4 is composed of a plurality of I-shaped steels, the I-shaped steels of the lower steel framework 5 are connected with the I-shaped steels of the upper steel framework 4 in a welding mode at the connected positions, and the lower steel framework 5 is placed on the upper sleeper layer 6. In this embodiment, the i-beams of the lower steel frame 5 are arranged in parallel and at equal intervals, and the i-beams of the lower steel frame 5 are arranged perpendicular to the sleepers of the upper sleeper layer 6, that is, the length direction of the i-beams of the lower steel frame 5 is perpendicular to the central line of the pipeline 9.
Furthermore, the i-beams of the upper steel frame 4 are parallel and equally spaced, and the i-beams of the upper steel frame 4 are perpendicular to the i-beams of the lower steel frame 5, that is, the length direction of the i-beams of the upper steel frame 4 is parallel to the central line of the pipeline 9.
The steel plate layer 2 is formed by splicing steel plates, the steel plates are connected with I-shaped steel of the upper steel structure frame 4 in a welding mode, and the steel plates are spliced on the surface of the steel temporary bridge to obtain a supporting surface. In this embodiment, the steel plates constituting the steel plate layer 2 are continuously spliced, and no gap is formed between the steel plates, that is, a complete support surface is formed on the surface of the steel temporary bridge.
One end of the combined bridge body is provided with a first soil slope 1, the other end of the combined bridge body is provided with a second soil slope 8, and an earthwork vehicle goes up the bridge from one soil slope, runs along a steel temporary bridge, passes through the area where the pipeline 9 is located, and then goes down the bridge from the other soil slope. In the present embodiment, the slopes of both the first soil slope 1 and the second soil slope 8 are 1: 5. It is of course conceivable to selectively set the slopes of both the first soil slope 1 and the second soil slope 8 according to the actual needs of the work.
In this embodiment, a surface soil covering layer 3 is disposed above the steel plate layer 2, and both ends of the surface soil covering layer 3 are respectively connected to the tops of the first soil slope 1 and the second soil slope 8. The surface cover layer 3 serves to cover the surface of the relatively smooth steel plate layer 2, thereby forming a surface more suitable for the traveling of an earth moving vehicle.
In order to monitor the form of the steel temporary bridge device and timely find the abnormality (mainly the settlement problem caused by repeated rolling of the earth vehicle) of the steel temporary bridge device, in the embodiment, settlement auxiliary observation assemblies are arranged at the center and the left and right edges of the steel temporary bridge, and the settlement auxiliary observation assemblies are observation steel plates welded and installed at the center of the steel deck 2 and the left and right edges of the lower steel framework 5. Specifically, after the steel deck 2 is welded and spliced, a front observation steel plate and a rear observation steel plate are welded and installed on an approximate center line of the steel deck 2, and the front observation steel plate and the rear observation steel plate are respectively welded on the i-beams on the edges of two sides of the lower steel framework 5, so that six observation steel plates are arranged in total.
The observation steel plate is in an upright state, and the size of the observation steel plate can be observed from the side position of the steel temporary bridge by adopting a leveling instrument without influencing the traffic behavior of the vehicle. When an earth vehicle passes through the steel temporary bridge, tires of the earth vehicle cannot pass through the central position of the steel deck 2 (the middle position of the vehicle passes through the upper part of the central position of the steel deck 2), so that the passing of the vehicle cannot be influenced by the observation steel plate arranged in the middle of the steel deck 2, and after the surface soil covering layer 3 is arranged on the steel deck 2 and compacted, the observation steel plate is exposed from the surface soil covering layer 3 and can be observed. After the steel temporary bridge device is found to be in a stable state (namely no longer settled) through observation and monitoring, the observation steel plate can be cut off by a cutting machine.
The construction mode of the steel temporary bridge is as follows:
according to a buried pipeline wiring drawing given by engineering, confirming the specific position of the pipeline 9 by combining field survey, and constructing a steel temporary bridge device right above the pipeline 9;
firstly, arranging a first lower-layer sleeper and a second lower-layer sleeper of a lower sleeper layer 7 on the surface of a soil layer above a pipeline 9, then arranging an upper sleeper layer 6 on the lower sleeper layer 7, namely arranging a first upper sleeper on the first lower-layer sleeper, and arranging a second upper sleeper on the second lower-layer sleeper, namely forming a left buttress and a right buttress, wherein the pipeline 9 is positioned below the middle position of the two buttresses in section;
hoisting and transporting the I-beams of the lower steel framework 5 between the two buttresses by adopting an engineering machine, adjusting the positions of the I-beams, hoisting and transporting the I-beams of the upper steel framework 4 onto the lower steel framework 5 by adopting the engineering machine, adjusting the positions of the I-beams, and welding and fixing the contact positions of the I-beams of the two layers of steel framework; then, paving a plurality of steel plates on the surface of the upper steel framework 4 to form a steel plate layer 2, and welding and fixing the steel plates and I-shaped steel below;
arranging observation steel plates at corresponding positions on the steel temporary bridge;
depositing and tamping cohesive soil on one end of the steel temporary bridge to form a first soil slope 1, depositing and tamping cohesive soil on the other end of the steel temporary bridge to form a second soil slope 8, and paving clay on the surface of the steel plate layer 2 and tamping to form a surface soil covering layer 3; obtaining a steel temporary bridge;
arranging a level gauge at the side position of the constructed steel temporary bridge device, recording the height of each observation steel plate by matching with a staff, measuring the height of each observation steel plate by the level gauge after the steel temporary bridge device is put into use for a certain time, and obtaining the front-back height difference, namely obtaining the height of the steel temporary bridge device which is settled during the use; generally, the initial settlement of the steel temporary bridge is relatively large, and after the steel temporary bridge is used for a certain period of time, the steel temporary bridge device and the soil layer below the steel temporary bridge tend to be stable, so that the settlement in the middle and later periods is reduced or no longer settled.
Claims (9)
1. The utility model provides a steel temporary bridge device for striding pipeline earthwork outward transport which characterized by: the device comprises a lower sleeper layer (7), an upper sleeper layer (6), a lower steel structure frame (5), an upper steel structure frame (4) and a steel plate layer (2) from bottom to top in sequence, wherein the lower sleeper layer (7) is arranged on the surface of a soil layer where a pipeline (9) is located; the lower sleeper layer (7) comprises a first lower sleeper and a second lower sleeper which are arranged in a separated mode, the upper sleeper layer (6) comprises a first upper sleeper and a second upper sleeper which are arranged in a separated mode, the first upper sleeper is located on the first lower sleeper, and the second upper sleeper is located on the second lower sleeper; the lower steel structure frame (5) is composed of a plurality of I-shaped steels, the upper steel structure frame (4) is composed of a plurality of I-shaped steels, and the I-shaped steels of the lower steel structure frame (5) are welded and connected with the I-shaped steels of the upper steel structure frame (4) at the connecting position; the steel plate layer (2) is formed by splicing steel plates, and each steel plate is welded with the I-shaped steel of the upper steel frame (4); one end of the combined bridge body is provided with a first soil slope (1), and the other end is provided with a second soil slope (8).
2. The steel access bridge assembly for the transport of earth across a pipeline as claimed in claim 1 wherein: the length direction of the sleepers of the lower sleeper layer (7) is parallel to the central line direction of the pipeline (9), and the length direction of the sleepers of the upper sleeper layer (6) is parallel to the central line direction of the pipeline (9).
3. The steel access bridge assembly for the transport of earth across a pipeline as claimed in claim 2 wherein: no gap exists between the sleepers of the first lower sleeper, between the sleepers of the second lower sleeper, between the sleepers of the first upper sleeper and between the sleepers of the second upper sleeper.
4. A steel access bridge assembly for the transport of earth across a pipeline as claimed in claim 3 wherein: the I-steel of the lower steel structure frame (5) is arranged in parallel at equal intervals, and the I-steel of the lower steel structure frame (5) is perpendicular to the sleepers of the upper sleeper layer (6).
5. The steel access bridge assembly for the transport of earth across a pipeline as claimed in claim 4 wherein: the I-steel of the upper steel structure frame (4) is arranged in parallel at equal intervals, and the I-steel of the upper steel structure frame (4) is perpendicular to the I-steel of the lower steel structure frame (5).
6. The steel access bridge assembly for the transport of earthwork across a pipeline according to claim 5 further comprising: the steel plates forming the steel plate layer (2) are continuously spliced, and no gap exists between the steel plates.
7. The steel access bridge assembly for the transport of earth across a pipeline of claim 6 wherein: the gradient of the first soil slope (1) and the gradient of the second soil slope (8) are both 1: 5.
8. The steel access bridge assembly for the transport of earth across a pipeline of claim 7 wherein: the center and the left and right edges of the steel temporary bridge are respectively provided with a settlement auxiliary observation assembly, and the settlement auxiliary observation assemblies are observation steel plates welded at the center of the steel deck (2) and the left and right edges of the lower steel framework (5).
9. The steel access bridge installation for the transport of earth across a pipeline as claimed in claim 8 wherein: a surface soil covering layer (3) is arranged above the steel plate layer (2), and two ends of the surface soil covering layer (3) are respectively connected with the tops of the first soil slope (1) and the second soil slope (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121594521.6U CN215925595U (en) | 2021-07-14 | 2021-07-14 | Steel temporary bridge device for transporting earth outside cross pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121594521.6U CN215925595U (en) | 2021-07-14 | 2021-07-14 | Steel temporary bridge device for transporting earth outside cross pipeline |
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| CN215925595U true CN215925595U (en) | 2022-03-01 |
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| CN202121594521.6U Active CN215925595U (en) | 2021-07-14 | 2021-07-14 | Steel temporary bridge device for transporting earth outside cross pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323863A (en) * | 2022-08-26 | 2022-11-11 | 中国水利水电第十一工程局有限公司 | Temporary pavement construction method for extra-heavy equipment transport vehicle to pass through light small bridge |
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2021
- 2021-07-14 CN CN202121594521.6U patent/CN215925595U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323863A (en) * | 2022-08-26 | 2022-11-11 | 中国水利水电第十一工程局有限公司 | Temporary pavement construction method for extra-heavy equipment transport vehicle to pass through light small bridge |
| CN115323863B (en) * | 2022-08-26 | 2023-12-05 | 中国水利水电第十一工程局有限公司 | Temporary road construction method for special heavy equipment transportation vehicle passing through light small bridge |
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