CN204238181U

CN204238181U - A kind of chain concrete precast block

Info

Publication number: CN204238181U
Application number: CN201420669818.8U
Authority: CN
Inventors: 胡东亮; 彭常青; 贺金仁
Original assignee: Zhejiang Design Institute of Water Conservancy and Hydroelectric Power
Current assignee: Zhejiang Design Institute of Water Conservancy and Hydroelectric Power
Priority date: 2014-11-11
Filing date: 2014-11-11
Publication date: 2015-04-01
Anticipated expiration: 2024-11-11

Abstract

A kind of chain concrete precast block, comprise several unit concrete precast blocks, described unit concrete precast block is regular prism, and the outer profile of its upstream face is regular polygon, and upstream face central authorities arrange groove; Back side is arranged alternately key and keyway along regular polygon periphery.Each unit concrete precast block, by the key of surrounding and the vertical chain effect of keyway, enables adjacent unit concrete precast block closely be interlocked, realizes the integral protection effect of concrete precast block, thus the water conservancy erosion control body that formation one is overall.The utility model appearance looks elegant, has good energy dissipating effect and production security, globality and stability of erosion control.

Description

A kind of chain concrete precast block

Technical field

The utility model relates to a kind of water conservancy erosion control body concrete prefabricated section, in particular for the chain concrete precast block of one that protection dykes and dams are domatic.

Background technology

Water conservancy erosion control body is divided into rigidity and flexible two classes.Rigidity erosion control body mainly contains concrete block, placed rockfill etc.Concrete block can be divided into interlock type, non-interlock type by the connected mode between block; Solid slug, hollow pot can be divided into by the section form of block.Regular prism, non-regular prism can be divided into by the shape of block.There is following shortcoming in non-interlock type solid regular prism concrete block conventional at present: upstream face is plane, paves rear flat appearance, too complanation, and with low uncertainty, aesthetic property is poor; Domatic roughness is little, and energy dissipating (wave) effect is poor; Slope leveling is cunning easily, be unfavorable for man and animal walking and overboard after save oneself, production security is poor; Block does not have linkage structure, and each block works alone, globality and poor security and stability.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming existed in above-mentioned prior art, provides the chain concrete precast block that a kind of appearance looks elegant, energy dissipating, safety, globality and stability of erosion control are good.

The technical solution adopted in the utility model is: a kind of chain concrete precast block, comprise several unit concrete precast blocks, it is characterized in that: described unit concrete precast block is regular prism, the outer profile of upstream face is regular hexagon or square, according to erosion control, the length of side and height of column require that calculating is determined; Described unit concrete precast block upstream face central authorities arrange groove; Described unit concrete precast block back side is arranged alternately key and keyway along regular hexagon or square perimeter, and the degree of depth of key and keyway is according to the size of concrete block and varied in thickness.Each concrete precast block, by the key of surrounding and the vertical chain effect of keyway, enables adjacent concrete precast block closely be interlocked, realizes the integral protection effect of concrete precast block, thus the water conservancy erosion control body that formation one is overall.

As preferably, the shape of described groove is regular hexagon or square, corresponding with the outer profile of unit concrete precast block upstream face.

As preferably, outside in described recessed circumferential bulge loop, corner cut is set.

The beneficial effects of the utility model are: at precast concrete block upstream face, central authorities arrange regular hexagon or square indentations, the roughness on its surface can be increased, improve the unrestrained ability that disappears, on average can reduce by the wave run-up value of 15% ~ 20% compared with the block of other surfacings; Simultaneously due to the existence of groove, its surface is no longer level and smooth, substantially increase man and animal walking and overboard after the possibility of saving oneself, thus improve the production security of engineering; Simultaneously due to the layout of groove, there has been U.S. of the geometrical pattern of concavo-convex change erosion control surface, adds aesthetics.In recessed circumferential bulge loop, outside arranges corner cut, can reduce the probability of upstream face corner breakage in structure manufacture installation process, highlight the geometrical pattern of single block simultaneously, increases the aesthetics on surface.By being arranged alternately key and keyway at concrete precast block periphery, block can being engaged each other, collaborative work, possessing certain globality, greatly strengthen the ability that prefabricated section monomer resists wave action.

Accompanying drawing explanation

Fig. 1 is the unit concrete precast block plan view of the utility model embodiment 1;

Fig. 2 is the A-A sectional drawing of Fig. 1;

Fig. 3 is the plan view of the utility model embodiment 1;

Fig. 4 is the B-B sectional drawing of Fig. 3.

Fig. 5 is the unit concrete precast block plan view of the utility model embodiment 2;

Fig. 6 is the C-C sectional drawing of Fig. 5;

Fig. 7 is the D-D sectional drawing of Fig. 5;

Fig. 8 is the plan view of the utility model embodiment 2;

Fig. 9 is the E-E sectional drawing of Fig. 8.

In figure: 1-unit concrete precast block; 2-groove; 3-key; 4-keyway; 5-corner cut.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed introduction is done to the utility model:

Embodiment 1: in Fig. 1, Fig. 2, the outer profile of the upstream face of unit concrete precast block 1 is regular hexagon, arranges regular hexagon groove 2 in upstream face central authorities, the dark 2 ~ 3cm of groove, and in recessed circumferential bulge loop, outside arranges corner cut 5, corner cut 5 height 1cm; Back side week, regular hexagon limit, edge was arranged alternately key 3 and keyway 4, and the degree of depth of key 3 and keyway 4 is determined according to the size of concrete block and thickness.In figs. 3 and 4, each unit concrete precast block 1 by key 3 and keyway 4 respectively with the keyway 4 of the unit concrete precast block 1 of its periphery and key 3 chain.Each unit concrete precast block 1 is by six keys 3 of surrounding and the vertical chain effect of keyway 4, adjacent unit concrete precast block 1 can be closely interlocked, realize the integral protection effect of concrete precast block 1, thus the water conservancy erosion control body that formation one is overall.

Embodiment 2: in Fig. 5, Fig. 6, Fig. 7, the outer profile of the upstream face of unit concrete precast block 1 is square, arranges square indentations 2, the dark 2 ~ 3cm of groove in upstream face central authorities, and in recessed circumferential bulge loop, outside arranges corner cut 5, corner cut 5 height 1cm; Back side week edge square limit is arranged alternately key 3 and keyway 4, and the degree of depth of key 3 and keyway 4 is determined according to the size of concrete block and thickness.In figs. 8 and 9, each unit concrete precast block 1 by key 3 and keyway 4 respectively with the keyway 4 of the unit concrete precast block 1 of its periphery and key 3 chain.Each unit concrete precast block 1 is by four keys 3 of surrounding and the vertical chain effect of keyway 4, adjacent unit concrete precast block 1 can be closely interlocked, realize the integral protection effect of concrete precast block 1, thus the water conservancy erosion control body that formation one is overall.

Claims

1. a chain concrete precast block, comprise several unit concrete precast blocks (1), it is characterized in that: described unit concrete precast block (1) is regular prism, the outer profile of its upstream face is regular hexagon or square, and upstream face central authorities arrange groove (2); Described unit concrete precast block (1) back side is arranged alternately key (3) and keyway (4) along regular polygon periphery.

2. chain concrete precast block according to claim 1, is characterized in that: the shape of described groove (2) is regular hexagon or square, corresponding with the outer profile of unit concrete precast block (1) upstream face.

3. chain concrete precast block according to claim 1 and 2, is characterized in that: in described groove (2) periphery bulge loop, outside arranges corner cut (5).