Prefabricated part assembling structure suitable for operation without stopping water
Technical Field
The invention relates to the technical field of underwater assembly of concrete buildings, in particular to a prefabricated member assembly structure suitable for operation without stopping water.
Background
When the flow of large diversion and water transfer engineering is increased, obvious Karman vortex street phenomena occur at the downstream of buildings such as part of bridge piers, aqueducts, inverted siphons and the like, even turbulent flow states are formed, and the increase of water transfer capacity is restricted. Therefore, the above buildings need to be optimized and modified, and the karman vortex street phenomenon is eliminated and the water delivery capacity is improved by adding a diversion structure at the upstream of the buildings. Because the scale of the water diversion project is large, the economic loss of water cut-off modification is overlarge, and the original building can be modified only under the condition of normal water delivery; meanwhile, the water surface of the diversion project is wide, piers, columns, guide walls and the like are all positioned in the center of a channel, the lifting capacity is obviously reduced after a conventional automobile crane arm is unfolded for a long distance, and although a crawler crane can lift large tonnage, the width and the bearing capacity of a maintenance road along the channel are limited, so that the safety of the original diversion building is influenced. In order to complete the optimization and reconstruction of aqueduct, inverted siphon and bridge pier stud of diversion works, most of the prior diversion buildings adopt fabricated structures, and after the prefabrication of each component in a factory is finished, hoisting equipment is hoisted on water to complete the on-site assembly and sinking in place. Influenced by the condition of the moving water, the diversion building with larger volume often has the defects of low assembly precision, poor water stopping effect and the like when being vertically connected.
Disclosure of Invention
In order to solve the problems, the invention provides a prefabricated part assembling structure suitable for operation without stopping water, which can adopt the following technical scheme:
the invention relates to a prefabricated part assembling structure suitable for non-stop operation, which is used between prefabricated part connecting surfaces which are vertically stacked, and comprises
The positioning groove is arranged at the periphery of the top surface of the lower-layer prefabricated part;
the inserting tenon is arranged on the bottom surface of the upper-layer prefabricated part corresponding to the positioning groove and is matched with the positioning groove;
the water stopping groove is arranged on the top surface of the lower-layer prefabricated part and is positioned outside the positioning groove;
and the waterstop is arranged in the waterstop groove and is extruded and deformed under the action of the upper-layer prefabricated member to form waterstop sealing.
The prefabricated part comprises a cavity structure formed by side walls in a surrounding mode, the positioning groove, the water stopping groove and the water stopping belt are arranged on the top surfaces of the side walls in the circumferential direction, the inserting tenon is arranged on the bottom surfaces of the side walls, and the bottom surfaces of the side walls corresponding to the water stopping groove are of a plane structure.
The cross section of the water stopping groove is of a semicircular structure.
The water stop belt is a hollow rubber rod, the outer diameter of the water stop belt is 0.6-0.7 times of the inner diameter of the water stopping tank, and the inner diameter of the water stop belt is 1.1-1.2 times of the difference value of the inner diameter of the water stop belt and the inner diameter of the water stopping tank.
The cavity structure is provided with a bottom plate, and a rubber sucker is arranged on the periphery of the lower surface of the bottom plate along the annular direction.
The prefabricated part assembling structure suitable for non-water-stop operation is simple in structure and convenient to construct, and can be used for quickly completing assembly through the interlaminar mortise and tenon joint structure, so that the vertical mounting precision of an assembly part is improved; meanwhile, a water stopping groove is formed between every two adjacent prefabricated parts, a hollow rubber rod is placed in the groove, the hollow rubber rod is compressed to achieve a water stopping function when assembly is completed, and the efficiency of assembling and sinking in place of the diversion building on site in the diversion project can be effectively improved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is an exploded view of fig. 1.
Detailed Description
The invention relates to a prefabricated part assembling structure suitable for non-stop operation, which is used between prefabricated part connecting surfaces vertically stacked, and comprises: the positioning groove is arranged at the periphery of the top surface of the lower prefabricated member; the inserting tenon is arranged on the bottom surface of the upper-layer prefabricated part corresponding to the positioning groove and is matched with the positioning groove; the water stopping groove is arranged on the top surface of the lower-layer prefabricated part and is positioned outside the positioning groove; and the water stop belt is arranged in the water stop groove, and is extruded and deformed under the action of the upper-layer prefabricated member to form water stop seal.
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific assembly process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 and 2, the diversion building to be built is a thin-walled upper-opening cavity structure with a bottom plate, the adopted prefabricated members 1 are vertically stacked, and the assembling structures are arranged between the connecting surfaces of the adjacent prefabricated members 1 for accurate positioning and forming sealing water stop.
The prefabricated parts 1 are divided into two types, one type is a cylindrical structure, the other type is an upper opening structure with a bottom plate, the prefabricated parts are all provided with annular side walls with the same shape and the same size, the top surface of each annular side wall of each prefabricated part 1 is provided with an annular positioning groove 2, and each positioning groove 2 is positioned at the periphery of the side wall of each prefabricated part 1 and is of an L-shaped groove structure arranged close to a cavity; an annular water stop groove 3 is formed in the outer side of each positioning groove 2, the cross section of each annular water stop groove 3 is of a semicircular structure, and hollow rubber rods 4 installed in the annular water stop grooves are connected end to form an annular water stop belt. Under normal conditions, the outer diameter of the hollow rubber rod 4 is 0.6-0.7 times of the inner diameter of the water stopping tank 3, and the inner diameter of the hollow rubber rod 4 is 1.1-1.2 times of the difference value of the inner diameter of the water stopping tank 3, so that the hollow rubber rod 4 can be filled in the water stopping tank 3 after being deformed under pressure to form a sealed water stopping structure. Secondly, the edge of the bottom surface of the side wall of the prefabricated part 1 with the tubular structure is provided with an inserting tenon matched with the positioning groove 2, and when the prefabricated part is installed, the positioning groove 2 supports the inserting tenon and is assembled and positioned. The position opposite to the water stop tank 3 on the bottom surface of the side wall of the prefabricated member 1 with the cylindrical structure is of a plane structure, so that the hollow rubber rod 4 can be fully extruded. In addition, in order to improve the assembly accuracy, a rubber suction cup 5 is installed on the bottom plate of the upper opening structure prefabricated member 1 positioned at the bottom, and when the rubber suction cup is contacted with the bottom surface of the channel, the rubber suction cup can be attracted with the bottom surface of the channel under the action of gravity, so that the assembly difficulty between the prefabricated members 1 is reduced. Further, above-mentioned rubber suction cup 5 sets up at the lower surface periphery of prefab 1 bottom plate hoop, makes the assembly part in the in-process that sinks, can produce certain buoyancy to slowly descend, avoid taking place to collide with and damage.
It should be noted that in the description of the present invention, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.