CN-224213235-U - Filling type debris flow blocking dam

CN224213235UCN 224213235 UCN224213235 UCN 224213235UCN-224213235-U

Abstract

The utility model discloses a filling type debris flow blocking dam which is characterized by comprising a plurality of rows of blocking dam units which are horizontally arranged in rows along the width direction of a trench, wherein each row of blocking dam units are overlapped along the vertical direction to form a blocking dam body, the blocking dam units are of a hollow hexahedral structure with an inner cavity, and sand and stone fillers are filled in the inner cavity. The utility model can be conveniently and rapidly constructed, reduces the construction period and the cost, can conveniently realize dredging after the debris flow is smoothed, and is particularly suitable for implementation and application in debris flow channels needing emergency treatment.

Inventors

SHI XIANGYANG
WANG YUNXING
SU XING
ZHANG MANYIN
SUN ZHIZHONG

Assignees

甘肃省科学院地质自然灾害防治研究所

Dates

Publication Date: 20260508
Application Date: 20250721

Claims (10)

1. The utility model provides a filling type mud-rock flow blocking dam which characterized in that, includes the blocking dam unit that the horizontal row of channel width direction was set up of multirow, and each row of blocking dam unit overlaps along vertical direction and forms blocking dam body, and blocking dam unit is the hollow hexahedral structure that has the inner chamber and has packed the grit filler in the inner chamber.
2. The filled debris flow dam of claim 1, wherein the dam unit comprises an I-type dam unit positioned at a lowermost row and a II-type dam unit positioned at an uppermost row, the I-type dam unit having an upper end face open and a remaining side face closed design, the II-type dam unit having an upper end face open and a lower end face closed design.
3. The filled debris flow dam of claim 2, wherein the type I dam units and the type II dam units are arranged in overlapping relationship with each other and equal in the width direction.
4. The filled debris flow dam of claim 2, wherein the dam unit is a concrete preform with reinforcing steel bars built therein.
5. The filled debris flow dam of claim 2, wherein the overall side view of the dam body is in the form of a right trapezoid with a vertical face at the rear side of the dam.
6. The filled debris flow dam of claim 2, wherein two symmetrical tie beams are horizontally disposed within the open end of each dam unit.
7. The filled debris flow dam according to claim 2, wherein each dam unit is further provided with an L-shaped drainage groove penetrating in the front-rear direction at edge positions of both left and right sides of the abutting end surface in the up-down direction.
8. The filled debris flow dam according to claim 2, wherein the abutting end surfaces of the respective dam units in the up-down direction are further provided with a concave-convex snap-fit structure for realizing the abutting.
9. The filled debris flow blocking dam according to claim 2, wherein left and right through mounting holes are reserved on the left and right wall bodies of each blocking dam unit, and connecting rods are fixedly arranged in the left and right through mounting holes between the left and right adjacent blocking dam units; an upper row of mounting holes and a lower row of mounting holes are formed in the wall bodies on the left side and the right side of each blocking dam unit, and fixing plates are further arranged at the two ends of connecting rods in the adjacent mounting holes between the upper blocking dam units and the lower blocking dam units in an up-down connection mode; The connecting rod and the fixing plate are made of steel materials.
10. The filled debris flow retaining dam of claim 2, wherein the lower end of the back side of the I-shaped dam unit is provided with a horizontally outwardly extending dam heel, wherein 2 symmetrical anchor holes are reserved on the dam heel and are anchored on the foundation of the retaining dam through anchors; the foundation is arranged lower than the bottom surface of the channel, and backfill soil is filled above the foundation; The front and rear surfaces of the I-shaped dam unit positioned in the middle position are provided with a water passing hole and a water passing pipeline, so that the I-shaped dam unit forms a III-shaped dam unit; The upper end of the II-type dam unit is correspondingly covered with a dam cover, the lower surface of the dam cover is in butt joint with the upper end surface of the II-type dam unit through a concave-convex clamping fit structure, and the upper end of the dam cover is also provided with a hanging ring.

Description

Filling type debris flow blocking dam Technical Field The utility model relates to the technical field of debris flow control, in particular to a filling type debris flow blocking dam. Background The blocking dam is an important engineering structure in debris flow prevention and treatment engineering, and is mainly used for reducing the destructiveness of debris flow by intercepting solid substances, reducing energy, improving erosion reference surfaces and the like. Most of existing debris flow blocking dams are constructed by adopting cast-in-place concrete, and the defects of long engineering construction period and difficult later dredging exist. Therefore, when the retaining dam is designed, how to better improve the construction convenience, reduce the construction time and the cost, and facilitate the quick dredging of the mud-rock flow after the leveling, thus being the direction of the study to be considered by the technicians in the field. Disclosure of utility model Aiming at the defects of the prior art, the utility model aims to provide a filling type debris flow blocking dam which can be conveniently and rapidly constructed, reduce the construction period and the cost, can conveniently realize dredging after debris flows are restored, and is particularly suitable for implementation and application in debris flow channels needing emergency treatment. In order to solve the technical problems, the utility model adopts the following technical scheme: The utility model provides a filling type mud-rock flow blocking dam which characterized in that, includes the blocking dam unit that the horizontal row of channel width direction was set up of multirow, and each row of blocking dam unit overlaps along vertical direction and forms blocking dam body, and blocking dam unit is the hollow hexahedral structure that has the inner chamber and has packed the grit filler in the inner chamber. Therefore, each blocking dam unit can be prefabricated and loaded to site pile construction in advance, and the reproduction site is filled with sand and gravel fillers to finish dam construction. Therefore, the construction is convenient and quick, and the construction period and the cost are reduced. Meanwhile, after debris flow occurs, sediment can be cleaned after each blocking dam unit is detached, so that the obstruction of the self structure of the dam body to dredging work is avoided, and efficient and rapid dredging work is realized. Further, the blocking dam unit comprises an I-shaped dam unit positioned at the lowest row and a II-shaped dam unit positioned at the uppermost row, the upper end face of the I-shaped dam unit is open, the other side faces of the I-shaped dam unit are closed, and the upper end face and the lower end face of the II-shaped dam unit are open, and the other side faces of the II-shaped dam unit are closed. Thus, sand and stone fillers can be conveniently recharged after the dam body is piled up. Further, the I-type dam units and the II-type dam units are equal in width direction and are arranged in a one-to-one correspondence overlapping mode. This facilitates filling of the filler. Further, the dam unit is a concrete prefabricated member with reinforced bars arranged inside. This ensures that the device itself has sufficient structural strength. Further, the whole side view of the dam body of the dam presents a right trapezoid with the rear side of the dam (the defined direction in the application is that water flows forwards, so the downstream direction is the front, and the opposite upstream direction is the rear) as a vertical plane. Thus, the debris flow impact can be better resisted. Further, two symmetrical tie beams are horizontally arranged in the opening end of each blocking dam unit. Thus, the integral strength of the structure can be improved and the hoisting is convenient. Further, L-shaped drainage grooves penetrating in the front-back direction are further formed in the edges of the left side and the right side of the butt joint end surface of each blocking dam unit in the up-down direction. Thus, water can be conveniently discharged when mud-rock flow is intercepted. Further, the abutting end surface of each dam unit in the up-down direction is also provided with a concave-convex snap-fit structure (groove or protrusion) for realizing abutting. Therefore, the blocking dam units in the up-down direction are convenient to realize butt joint. Further, left and right through mounting holes are reserved on the left and right wall bodies of the blocking dam units, and connecting rods are fixedly installed in the left and right through mounting holes between the left and right adjacent blocking dam units. Thus, the fixed connection between the left and right adjacent barrage units is better realized. The connecting rod is provided with threads and is fastened by adopting nuts during implementation. Further, upper and lower two rows of mounting holes are formed in the wall bodies