CN220301242U - Debris flow blocking dam - Google Patents

Debris flow blocking dam Download PDF

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Publication number
CN220301242U
CN220301242U CN202321484284.7U CN202321484284U CN220301242U CN 220301242 U CN220301242 U CN 220301242U CN 202321484284 U CN202321484284 U CN 202321484284U CN 220301242 U CN220301242 U CN 220301242U
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steel concrete
dam
precast
prefabricated
drain pipe
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CN202321484284.7U
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Chinese (zh)
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王春磊
张宝河
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Gansu Geological Engineering Survey Institute Co ltd
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Gansu Geological Engineering Survey Institute Co ltd
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Abstract

The utility model provides a debris flow blocking dam which comprises a foundation layer, a slurry stone dam body, a precast steel concrete drain pipe, a precast steel concrete supporting beam and a precast steel concrete relief groove, wherein the slurry stone dam body is arranged above the foundation layer, an upstream water facing surface, a top end surface and a downstream overflow surface of the slurry stone dam body are respectively provided with the water facing surface steel concrete dam surface, the top end surface steel concrete dam surface and the overflow surface steel concrete dam surface, the precast steel concrete drain pipe and the precast steel concrete supporting beam are pre-buried in the middle of the slurry stone dam body, two ends of the precast steel concrete drain pipe and the precast steel concrete supporting beam are respectively connected with the water facing surface steel concrete dam surface and the overflow surface steel concrete dam surface, and the precast steel concrete relief groove is positioned at the bottom of the overflow surface steel concrete dam surface. The utility model has the advantages of high structural strength, strong shock resistance of the steel concrete panel and high construction efficiency.

Description

Debris flow blocking dam
Technical Field
The utility model relates to the technical field of debris flow treatment engineering, in particular to a debris flow blocking dam.
Background
The debris flow has the characteristics of strong impact and silt burying capability, high flow speed and high destructive power. The occurrence of debris flow can destroy traffic roads, farmland facilities, houses and the like, and cause huge life and property losses for surrounding residents. The mud-rock flow treatment mode mainly comprises blocking and drainage. The most common use in debris flow blocking projects is a blocking dam. The blocking dam can block part of debris flow solid phase substances, reduce the scale of debris flow and stabilize mountain ditch slopes. The existing common retaining dam body structure comprises a slurry stone structure, a steel concrete structure and a steel concrete and slurry stone combined structure, the mud-rock flow retaining dam with the slurry stone structure is convenient to construct, the stone is available locally, the manufacturing cost is low, the application is wide, but the problems of low structural strength, local easy crack occurrence, weak anti-scouring capability and the like exist; the mud-rock flow blocking dam with the steel concrete structure has the advantages of high structural strength, strong anti-scouring capability, high bearing capacity, high manufacturing cost, low construction efficiency and the like; the retaining dam with the combined structure of the steel concrete and the serous masonry in the prior art has the problems of low construction efficiency, low shock resistance of the steel concrete panel, easy detachment of the steel concrete panel from the serous masonry dam body and the like.
Disclosure of Invention
The utility model aims to provide a debris flow blocking dam. The blocking dam has the advantages of high structural strength, strong shock resistance of the steel concrete panel and high construction efficiency.
The utility model adopts the following technical scheme: the utility model provides a mud-rock flow blocking dam which characterized in that: comprises a foundation layer, a slurry stone dam body, a precast steel concrete drain pipe, a precast steel concrete supporting beam and a precast steel concrete absorption groove, wherein the slurry stone dam body is arranged above the foundation layer, an upstream water facing surface, a top end surface and a downstream overflow surface of the slurry stone dam body are respectively provided with a water facing surface steel concrete dam surface, a top end steel concrete dam surface and an overflow surface steel concrete dam surface, the precast steel concrete drain pipe and the precast steel concrete supporting beam are pre-buried in the middle of the slurry stone dam body, the prefabricated steel concrete drain pipe and the prefabricated steel concrete support beam are respectively connected with the water-facing steel concrete dam surface and the overflow surface steel concrete dam surface at two ends, the prefabricated steel concrete absorption groove is positioned at the bottom of the overflow surface steel concrete dam surface, the prefabricated steel concrete absorption groove is filled with rubble, and water outlets communicated with the prefabricated steel concrete drain pipe are arranged on the water-facing steel concrete dam surface and the overflow surface steel concrete dam surface.
Further, the bottoms of the upstream face steel concrete dam face and the top end steel concrete dam face are provided with reinforcing rib beams protruding downwards, and the reinforcing rib beams are embedded into the masonry dam body.
Further, the prefabricated steel concrete drain pipe and the prefabricated steel concrete supporting beam are reserved with connecting steel bar heads connected with the steel bar net of the upstream face steel concrete dam face and the steel bar net of the top end steel concrete dam face during prefabrication.
Further, the joint of the prefabricated steel concrete relief groove and the overflow surface steel concrete dam surface is provided with a lap joint tongue-and-groove.
The utility model has the following beneficial effects:
the prefabricated steel concrete drain pipe and the prefabricated steel concrete supporting beam are connected into a whole between the upstream face steel concrete dam face and the overflow face steel concrete dam face, and are embedded in the middle of the masonry dam body, so that the whole dam body is tightly combined into a whole, and the overall stability of the retaining dam is improved. The prefabricated steel concrete drain pipe and the prefabricated steel concrete supporting beam form an effective support for the steel concrete dam surface of the upstream surface, and the anti-collision performance of the steel concrete dam surface of the upstream surface is greatly improved. The bottoms of the upstream face steel concrete dam face and the top end steel concrete dam face are provided with the reinforced rib beams protruding downwards, so that the structural strength of the upstream face steel concrete dam face is improved, and meanwhile the separation of the upstream face steel concrete dam face and the masonry dam body can be effectively avoided. The prefabricated steel concrete drain pipe and the prefabricated steel concrete supporting beam adopt a mode of prefabricating in advance, and can be directly embedded in the starching stone dam body during site construction, so that the construction efficiency can be greatly improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
fig. 2 is a schematic view of the structure of the prefabricated steel concrete drain pipe of the present utility model.
FIG. 3 is a schematic view of a precast reinforced concrete support beam structure of the present utility model.
FIG. 4 is a schematic diagram of the prefabricated steel concrete stilling groove structure of the utility model.
The corresponding component names in the figure are: 1 a base layer; 2, slurry stone dam body; 3, prefabricating a steel concrete drain pipe; 4, prefabricating a steel concrete supporting beam; 5, prefabricating a steel concrete force dissipating groove; 6, facing the steel concrete dam surface of the water surface; 7, top end steel concrete dam surface; 8 overflow surface reinforced concrete dam surface; 9, a water outlet; 10 reinforcing rib beams; 11 lap joint rabbets; 12 are connected with the steel bar heads.
Description of the embodiments
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1-4, the utility model provides a debris flow blocking dam, which comprises a foundation layer 1, a slurry stone dam body 2, a prefabricated steel concrete drain pipe 3, a prefabricated steel concrete supporting beam 4 and a prefabricated steel concrete relief groove 5, wherein the slurry stone dam body 2 is arranged above the foundation layer 1, an upstream water facing surface, a top end surface and a downstream overflow surface of the slurry stone dam body are respectively provided with a water facing surface steel concrete dam surface 6, a top end surface steel concrete dam surface 7 and an overflow surface steel concrete dam surface 8, the prefabricated steel concrete drain pipe 3 and the prefabricated steel concrete supporting beam 4 are pre-buried in the middle of the slurry stone dam body, two ends of the prefabricated steel concrete drain pipe 3 and the prefabricated steel concrete supporting beam 4 are respectively connected with the water facing surface steel concrete dam surface 6 and the overflow surface steel concrete dam surface 8, the prefabricated steel concrete relief groove 5 is arranged at the bottom of the overflow surface steel concrete dam surface 7, and water outlet steel concrete drain ports 9 communicated with the water facing surface steel concrete dam surface and the overflow surface steel concrete dam surface are respectively filled with. The bottoms of the upstream face steel concrete dam face 6 and the top end steel concrete dam face 7 are provided with reinforcing rib beams 10 protruding downwards, and the reinforcing rib beams are embedded into the masonry dam body. The prefabricated steel concrete drain pipe 3 and the prefabricated steel concrete supporting beam 4 are reserved with a connecting steel bar head 12 connected with a water facing surface steel concrete dam surface and a top steel concrete dam surface steel bar net during prefabrication. And the joint of the prefabricated steel concrete stilling groove 5 and the overflow surface steel concrete dam surface 8 is provided with a lap joint tongue-and-groove 11. The lap joint rabbet 11 can improve the connection strength of the prefabricated steel concrete absorption groove 5 and the dam body, and prevent the dam body foundation layer from being impacted by water flow.
The prefabricated steel concrete drain pipe 3, the prefabricated steel concrete supporting beam 4 and the prefabricated steel concrete stilling groove 5 are manufactured in a factory prefabricated mode, and are transported to a construction site during construction. When in site construction, a foundation layer 1 is firstly constructed, a slurry stone dam body is constructed above the foundation layer 1, a precast steel concrete drain pipe 3 and a precast steel concrete supporting beam 4 are pre-buried while the slurry stone dam body is constructed, and precast steel concrete relief grooves 5 are simultaneously arranged, wherein the number and arrangement modes of the precast steel concrete drain pipe 3 and the precast steel concrete supporting beam 4 are set according to the height and the width of the dam body. The prefabricated steel concrete stilling grooves 5 are arranged in a multi-section side-by-side mode. And then installing a reinforced net frame of the upstream face reinforced concrete dam face 6, the top end reinforced concrete dam face 7 and the overflow face reinforced concrete dam face 8 on the slurry masonry dam body, connecting the prefabricated reinforced net frame with the connecting reinforced heads 12 of the prefabricated reinforced concrete drain pipe 3 and the prefabricated reinforced concrete support beam 4, and finally pouring concrete to form the upstream face reinforced concrete dam face 6, the top end reinforced concrete dam face 7 and the overflow face reinforced concrete dam face 8. The prefabricated steel concrete drain pipe 3 and the prefabricated steel concrete supporting beam 4 are connected into a whole between the water facing surface steel concrete dam surface 6 and the overflow surface steel concrete dam surface 8, the prefabricated steel concrete drain pipe 3 and the prefabricated steel concrete supporting beam 4 form effective support for the water facing surface steel concrete dam surface, and meanwhile, the whole dam body can be tightly combined into a whole, so that the overall stability of the retaining dam is improved. Greatly improves the anti-collision performance of the steel concrete dam surface on the upstream surface. The bottoms of the upstream face steel concrete dam face and the top end steel concrete dam face are provided with the reinforced rib beams protruding downwards, so that the structural strength of the upstream face steel concrete dam face is improved, and meanwhile the separation of the upstream face steel concrete dam face and the masonry dam body can be effectively avoided. The prefabricated steel concrete drain pipe and the prefabricated steel concrete supporting beam adopt a mode of prefabricating in advance, and can be directly embedded in the starching stone dam body during site construction, so that the construction efficiency can be greatly improved.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make many possible variations and modifications to the technical solution of the present utility model using the above disclosed method without departing from the scope of the technical solution of the present utility model, which is defined in the claims.

Claims (4)

1. The utility model provides a mud-rock flow blocking dam which characterized in that: comprises a foundation layer, a slurry stone dam body, a precast steel concrete drain pipe, a precast steel concrete supporting beam and a precast steel concrete absorption groove, wherein the slurry stone dam body is arranged above the foundation layer, an upstream water facing surface, a top end surface and a downstream overflow surface of the slurry stone dam body are respectively provided with a water facing surface steel concrete dam surface, a top end steel concrete dam surface and an overflow surface steel concrete dam surface, the precast steel concrete drain pipe and the precast steel concrete supporting beam are pre-buried in the middle of the slurry stone dam body, the prefabricated steel concrete drain pipe and the prefabricated steel concrete support beam are respectively connected with the water-facing steel concrete dam surface and the overflow surface steel concrete dam surface at two ends, the prefabricated steel concrete absorption groove is positioned at the bottom of the overflow surface steel concrete dam surface, the prefabricated steel concrete absorption groove is filled with rubble, and water outlets communicated with the prefabricated steel concrete drain pipe are arranged on the water-facing steel concrete dam surface and the overflow surface steel concrete dam surface.
2. The debris flow barrage of claim 1, wherein: the bottoms of the upstream face steel concrete dam face and the top end steel concrete dam face are provided with reinforcing rib beams protruding downwards, and the reinforcing rib beams are embedded into the masonry dam body.
3. The debris flow barrage of claim 1, wherein: and the prefabricated steel concrete drain pipe and the prefabricated steel concrete supporting beam are reserved with connecting steel bar heads connected with the steel bar net of the water-facing steel concrete dam surface and the steel bar net of the top steel concrete dam surface during prefabrication.
4. The debris flow barrage of claim 1, wherein: and the joint of the prefabricated steel concrete stilling groove and the overflow surface steel concrete dam surface is provided with a lap joint tongue-and-groove.
CN202321484284.7U 2023-06-12 2023-06-12 Debris flow blocking dam Active CN220301242U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321484284.7U CN220301242U (en) 2023-06-12 2023-06-12 Debris flow blocking dam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321484284.7U CN220301242U (en) 2023-06-12 2023-06-12 Debris flow blocking dam

Publications (1)

Publication Number Publication Date
CN220301242U true CN220301242U (en) 2024-01-05

Family

ID=89375553

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321484284.7U Active CN220301242U (en) 2023-06-12 2023-06-12 Debris flow blocking dam

Country Status (1)

Country Link
CN (1) CN220301242U (en)

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