CN215290202U - Underground space excavation closure flow guide structure containing inland river channel - Google Patents
Underground space excavation closure flow guide structure containing inland river channel Download PDFInfo
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- CN215290202U CN215290202U CN202121026983.8U CN202121026983U CN215290202U CN 215290202 U CN215290202 U CN 215290202U CN 202121026983 U CN202121026983 U CN 202121026983U CN 215290202 U CN215290202 U CN 215290202U
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Abstract
The utility model relates to an underground space excavation closure flow guide structure containing an inland river channel, which comprises an closure system and a flow guide system, wherein the closure system is arranged in a natural river channel and comprises two cofferdams and at least one dirt separation fence, and the two cofferdams are respectively positioned at the upstream and the downstream of the natural river channel; the diversion system comprises a diversion channel communicated with the downstream of the natural river channel, a water collecting well connected with the end part of the diversion channel, and a water suction pump used for pumping water at the upstream of the river channel to the water collecting well, wherein the sewage isolation fence is positioned on one side, far away from the cofferdam, of the water suction pump. This application dams and the water conservancy diversion is handled the river course before the underground space construction, and wherein, the river lateral pressure that the cofferdam can bear guarantees that the underground construction goes on, and the sump pit can play the effect of water storage on the one hand, and on the other hand can satisfy flood season drainage efficiency, and simultaneously, the dirt separation fence can intercept out the bold pollutant in the river, prevents that the bold pollutant from blockking up the suction pump.
Description
Technical Field
The application relates to the field of river channel construction, in particular to an underground space excavation closure flow guide structure with an inland river channel.
Background
With the rapid development of the building industry and the shortage of land, the utilization of underground space has become a trend and is developing more and more deeply, and the underground space can be used as an underground parking garage and other functional places. Particularly, when a river channel is involved in a red line of a building, the river channel is often interrupted when excavation and underground construction are carried out in the red line range, and in order to not affect the normal drainage function of the river channel, the original river channel needs to be cut off and guided by necessary flow, including a cut-off mode, a flow guiding mode, corresponding structures of the flow-off mode and the flow guiding mode, and the like.
In the related art, when diversion construction is carried out on a river channel, cofferdams are arranged at the upstream and the downstream of the river channel, flowing water of the river channel is blocked by the cofferdams, water in a construction site between the two cofferdams is taken out, meanwhile, a diversion channel is excavated ashore in the river channel, the river water at the upstream is discharged to the downstream by the diversion channel, after the construction of the construction site is finished, the cofferdams are removed, and the diversion channel is filled. In view of the above related art, the inventor found that in the design of the flow guide channel, the flow guide channel in the related art has the problems of insufficient drainage of stagnant water and flood discharge in the emergency flood season.
SUMMERY OF THE UTILITY MODEL
In order to improve the drainage flow when water conservancy diversion passageway water conservancy diversion, this application provides an underground space excavation interception water conservancy diversion structure that contains inland river way.
The application provides a contain underground space excavation diversion structure that dams of inland river course adopts following technical scheme:
an underground space excavation intercepting and flow guiding structure containing an inland river channel comprises an intercepting system and a flow guiding system,
the intercepting system is arranged in the natural river channel and comprises two cofferdams and at least one dirt separation fence, and the two cofferdams are respectively positioned at the upstream and the downstream of the natural river channel;
the diversion system comprises a diversion channel communicated with the downstream of the natural river channel, a water collecting well connected with the end part of the diversion channel, and a water suction pump used for pumping water at the upstream of the river channel to the water collecting well, wherein the sewage separation fence is positioned on one side, far away from the cofferdam, of the water suction pump.
By adopting the technical scheme, the two cofferdams enclose a construction site in the natural river channel, water at the middle upstream of the natural river channel is pumped to the water collecting well through the water pumping pump, then flows to the flow guide channel from the water collecting well, and finally is discharged to the downstream through the flow guide channel. Carry out damming and water conservancy diversion processing to the river course before the underground space construction, wherein, the river lateral pressure that the cofferdam can bear guarantees that underground construction goes on, and the sump pit can play the effect of water storage on the one hand, and on the other hand can satisfy flood season drainage efficiency, simultaneously, will separate dirty fence and set up the one side that the suction pump kept away from the cofferdam, separates dirty fence and can intercept out the bold pollutant in the river, prevents that the bold pollutant from blockking up the suction pump.
Preferably, the diversion channel comprises a diversion trench foundation and a diversion trench body paved on the diversion trench foundation, and the diversion trench foundation is formed by pouring reinforced concrete.
Through adopting above-mentioned technical scheme, the guiding gutter basis adopts reinforced concrete to pour, and reinforced concrete has higher structural strength and compressive strength, and non-deformable, has good supporting effect to the guiding gutter body, and the river of water conservancy diversion passes through the guiding gutter to act on the guiding gutter basis, and the guiding gutter basis satisfies the bearing capacity requirement, can guarantee the smooth water conservancy diversion of river.
Preferably, the flow guide groove body is formed by combining a plurality of steel plates and a profile steel back edge, and the steel plates are welded with each other.
Through adopting above-mentioned technical scheme, the water conservancy diversion cell body adopts the mode of the stupefied combination of steel sheet and shaped steel back of the body, and the steel sheet welds each other, has good leak protection ability, and the stupefied stability that has increased the steel sheet setting of shaped steel back of the body makes the whole good supporting effect that has of water conservancy diversion cell body when the drainage.
Preferably, a connecting angle steel is pre-embedded in the water collecting well, and the connecting angle steel is welded with the diversion trench body.
Through adopting above-mentioned technical scheme, pre-buried angle steel in the sump pit, angle steel can weld with the water conservancy diversion cell body, makes to be connected more stably between sump pit and the water conservancy diversion cell body, is difficult for leaking, and under rivers wash, the guiding gutter still can with sump pit firm connection.
Preferably, the width of the diversion groove body is gradually increased along the water flow direction at the end part close to the water collecting well.
Through adopting above-mentioned technical scheme, this kind of design makes the river in the guiding gutter can transition to the sump pit more smoothly.
Preferably, the diversion groove body is U-shaped, and a safety net is arranged at the upper part of the diversion groove body.
By adopting the technical scheme, the diversion trench is arranged into a U shape, so that the diversion trench has a water storage function, meets the diversion effect and is convenient to observe, maintain and repair during diversion. Meanwhile, the safety net is arranged on the upper portion, so that the safety of personnel is guaranteed, and the personnel are prevented from entering the diversion trench by mistake.
Preferably, the cofferdam consists of earth and stone bags and clay, and the earth and stone bags are respectively positioned on two sides of the clay.
Through adopting above-mentioned technical scheme, the cofferdam more has good manger plate function, provides good environment for the construction site, and clay is ventilative impervious, has further improved the manger plate effect.
Preferably, the cofferdam is in a trapezoidal arrangement.
By adopting the technical scheme, the cofferdam is designed to be narrow at the top and wide at the bottom, so that the lower part of the cofferdam can bear larger lateral pressure, and the cofferdam is ensured to be firm and save materials.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the river channel is subjected to interception and diversion treatment before underground space construction, wherein the cofferdam can bear the lateral pressure of the river water, underground construction is guaranteed, the water collecting well can play a role in water storage on one hand, and can meet the drainage effect in the flood season on the other hand, meanwhile, the sewage isolation fence is arranged on one side, away from the cofferdam, of the water suction pump, and can intercept large pollutants in the river water and prevent the water suction pump from being blocked by the large pollutants;
2. the diversion groove body adopts a mode of combining the steel plate and the profile steel back ridge, the steel plates are welded with each other, the good water leakage prevention capacity is achieved, the profile steel back ridge increases the stability of the steel plate arrangement, and the diversion groove body has a good supporting effect when the whole body drains water;
3. through pre-buried angle iron in the sump pit, angle iron can weld with the water conservancy diversion cell body, makes to be connected more stably between sump pit and the water conservancy diversion cell body, is difficult for leaking, and under rivers washout, the guiding gutter still can with sump pit firm connection.
Drawings
Fig. 1 is a plan view of a river diversion device according to an embodiment of the present application.
Fig. 2 is a plan view illustrating a cofferdam structure according to an embodiment of the present application.
Fig. 3 is a schematic side view of a flow guide channel according to an embodiment of the present disclosure.
FIG. 4 is a schematic top view of a flow channel according to an embodiment of the present disclosure.
Fig. 5 is a schematic view showing a joint between a sump and a diversion trench body according to an embodiment of the present application.
Fig. 6 is a schematic cross-sectional view of a water collection well in an embodiment of the present application.
Description of reference numerals: 1. a flow closure system; 11. cofferdam; 111. a soil and stone bag; 112. clay; 12. a dirt-isolating fence; 2. a flow directing system; 21. a flow guide channel; 211. a diversion trench foundation; 212. a diversion tank body; 2121. a steel plate; 2122. steel back arris; 22. a water collecting well; 23. a water pump; 3. a natural river channel; 31. an upstream section of the river; 32. a downstream section of the river; 4. a safety net; 5. connecting angle steel; 6. and (5) reinforcing the bracket.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses underground space excavation interception and flow guide structure containing an inland river channel.
Referring to fig. 1 and 2, an underground space excavation intercepting and guiding structure comprising an inner river channel comprises an intercepting system 1 and a guiding system 2, wherein the intercepting system 1 is arranged in a natural river channel 3, the natural river channel 3 is divided into a river channel upstream section 31 and a river channel downstream section 32, the intercepting system 1 is used for intercepting flowing water of the natural river channel 3 and enclosing a construction ground area in the natural river channel 3, and the construction is mainly carried out underground; the river water in the upstream section 31 of the river channel is discharged to the lower section of the river channel by using the diversion system 2, so that the normal drainage function of the river is kept normal during construction.
The intercepting system 1 comprises cofferdams 11 and dirt-separating fences 12, the number of the cofferdams 11 is two, the two cofferdams are respectively arranged at an upstream section 31 of a river channel and a downstream section 32 of the river channel, a construction ground area is formed between the two cofferdams 11, water in the upper area of a construction site is kept static due to the arrangement of the two cofferdams 11, the construction ground can be kept static relatively, and the influence of running water on the construction ground is reduced.
Cofferdam 11 comprises earth and rock bag 111 and clay 112, and clay 112 is airtight impervious, has good manger plate effect, and earth and rock bag 111 is located clay 112's both sides, can make cofferdam 11 wholly have higher structural strength, makes cofferdam 11 can bear great river lateral pressure. And the cofferdam 11 is wholly set to be trapezoidal, namely, the design of narrow top and wide bottom is adopted, so that the lower part of the cofferdam 11 can bear larger lateral pressure, the firmness of the cofferdam 11 is ensured, and materials can be saved. Reinforcing supports 6 are clamped on two sides of the cofferdam 11, and the reinforcing supports 6 mainly reinforce the structure of the cofferdam 11.
Referring to fig. 1 and 3, the intercepting system 1 includes a diversion channel 21 communicated with a downstream section 32 of the river channel, a water collecting well 22 communicated with the diversion channel 21, and a water pump 23 connected with an upstream section 31 of the river channel, wherein the water pump 23 pumps the river water in the upstream section 31 of the river channel into the water collecting well 22, then the river water is discharged to the diversion channel 21 from the water collecting well 22, and finally the river water is discharged to the downstream section 32 of the river channel by the diversion channel 21. Wherein, the dirt separation fence 12 is located one side that the suction pump 23 keeps away from the 31 cofferdams 11 of river course upper reaches section, and the dirt separation fence 12 can be for the netted or metal grid strip of sieve, and the dirt separation fence 12 can intercept out the bold pollutant in the river water, prevents that the bold pollutant from blockking up suction pump 23.
The diversion channel 21 comprises a diversion trench foundation 211 and a diversion trench body 212 laid on the diversion trench foundation 211, the diversion trench foundation 211 is formed by pouring reinforced concrete, the reinforced concrete has high structural strength and compressive strength, is not easy to deform, and has a good supporting effect on the diversion trench body 212. The diversion groove body 212 is formed by combining a plurality of steel plates 2121 and a section steel back edge 2122, the section steel back edge 2122 is made of channel steel and angle steel, the steel plates 2121 are laid along the diversion groove foundation 211, adjacent steel plates 2121 are welded with each other, and the section steel back edge 2122 plays a role in supporting and reinforcing the steel plates 2121, so that the steel plates 2121 have stronger connection strength, and can bear larger river discharge capacity during the flood season.
Referring to fig. 3 and 4, the flow guide groove body 212 is U-shaped as a whole, and the design manner of the U-shape enables the flow guide groove body 212 to have a water storage function, meet a flow guide effect, and facilitate observation, maintenance and repair during flow guide. The safety net 4 is installed on the upper portion of the diversion trench body 212, and the safety net 4 can guarantee the safety of personnel and prevent the personnel from entering the diversion trench by mistake. Referring to fig. 5, the width of the diversion trench body 212 gradually increases along the water flow direction near the end of the water collection well 22, so that the river water in the diversion trench can be smoothly transferred into the water collection well 22.
Referring to fig. 6, a connection angle steel 5 is embedded in the water collecting well 22, and the connection angle steel 5 is welded to the end of the steel plate 2121 in the diversion groove body 212, so that the connection between the water collecting well 22 and the diversion groove body 212 is more stable and is not easy to leak water, and the diversion groove can still be firmly connected with the water collecting well 22 under the flushing of water flow.
The implementation principle of the underground space excavation closure diversion structure comprising the inland river channel in the embodiment of the application is as follows: the two cofferdams 11 enclose a construction site in the natural river 3, water at the middle upstream of the natural river 3 is pumped to the water collecting well 22 through the water suction pump 23, then flows to the diversion channel 21 from the water collecting well 22, and finally is discharged to the downstream through the diversion channel 21. River channels are cut off and flow guide processed before underground space construction, wherein, the river lateral pressure that cofferdam 11 can bear guarantees in the underground construction process, and sump pit 22 can play the effect of water storage on the one hand, and on the other hand can satisfy flood season drainage efficiency, simultaneously, will separate dirty fence 12 and set up to one side that suction pump 23 kept away from cofferdam 11, separates dirty fence 12 and can intercept out the bulk pollutant in the river water, prevents that the bulk pollutant from blockking up suction pump 23.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An underground space excavation intercepting and flow guiding structure containing an inland river channel comprises an intercepting system (1) and a flow guiding system (2),
the intercepting system (1) is arranged in the natural river channel (3) and comprises two cofferdams (11) and at least one dirt separation fence (12), wherein the two cofferdams (11) are respectively positioned at the upstream and the downstream of the natural river channel (3);
the diversion system (2) comprises a diversion channel (21) communicated with the downstream of the natural river channel (3), a water collecting well (22) connected with the end part of the diversion channel (21), and a water suction pump (23) used for pumping water at the upstream of the river channel to the water collecting well (22), wherein the sewage isolation fence (12) is positioned on one side, away from the cofferdam (11), of the water suction pump (23).
2. The underground space excavation intercepting and guiding structure comprising the inland river channel according to claim 1, characterized in that: the diversion channel (21) comprises a diversion trench foundation (211) and a diversion trench body (212) paved on the diversion trench foundation (211), and the diversion trench foundation (211) is formed by pouring reinforced concrete.
3. The underground space excavation intercepting and guiding structure comprising the inland river channel as claimed in claim 2, wherein: the flow guide groove body (212) is formed by combining a plurality of steel plates (2121) and a profile steel back edge (2122), and the steel plates (2121) are welded with each other.
4. The underground space excavation intercepting and guiding structure comprising the inland river channel according to claim 3, characterized in that: connecting angle steel (5) is embedded in the water collecting well (22), and the connecting angle steel (5) is welded with the flow guide groove body (212).
5. The underground space excavation intercepting and guiding structure comprising the inland river channel according to claim 3, characterized in that: the width of the end part of the diversion groove body (212) close to the water collecting well (22) is gradually increased along the water flow direction.
6. The underground space excavation intercepting and guiding structure comprising the inland river channel according to claim 3, characterized in that: the diversion groove body (212) is arranged in a U shape, and a safety net (4) is arranged at the upper part of the diversion groove body.
7. The underground space excavation intercepting and guiding structure comprising the inland river channel according to claim 1, characterized in that: the cofferdam (11) is composed of earth and stone bags (111) and clay (112), wherein the earth and stone bags (111) are respectively positioned on two sides of the clay (112).
8. The underground space excavation intercepting and guiding structure comprising the inland river channel according to claim 1, characterized in that: the cofferdam (11) is in a trapezoidal arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026983.8U CN215290202U (en) | 2021-05-13 | 2021-05-13 | Underground space excavation closure flow guide structure containing inland river channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121026983.8U CN215290202U (en) | 2021-05-13 | 2021-05-13 | Underground space excavation closure flow guide structure containing inland river channel |
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| Publication Number | Publication Date |
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| CN215290202U true CN215290202U (en) | 2021-12-24 |
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| CN202121026983.8U Active CN215290202U (en) | 2021-05-13 | 2021-05-13 | Underground space excavation closure flow guide structure containing inland river channel |
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- 2021-05-13 CN CN202121026983.8U patent/CN215290202U/en active Active
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