阅读说明：本技术 混凝土坝内的孔口泄洪结构 (Orifice flood discharge structure in concrete dam ) 是由 刘小强 郑付刚 贺春晖 赖长江 于 2020-08-18 设计创作，主要内容包括：本发明公开涉及混凝土坝技术领域,尤其涉及一种混凝土坝内的孔口泄洪结构,其包括沿水流方向设置的孔口钢衬,孔口钢衬的四周浇筑有混凝土结构,孔口钢衬包括多个依次连接设置的钢衬节,钢衬节包括顶板、左侧板、底板、右侧板、第一连接折板、第二连接折板、第三连接折板、第四连接折板,各部件采用焊接形成的焊缝为对接焊缝,对接焊缝相对于现有技术中焊接所形成的角焊缝,更加方便切坡口和焊接施工,对接焊缝周边厚度一致,焊接质量及可靠性均得到提高,检测作业面为平面,也便于焊接质量检测。并且,钢衬节的四个角缘处不是直角,避免了四个直角角缘处应力集中的问题,更加利于混凝土结构振捣密实,提高施工质量。(The invention relates to the technical field of concrete dams, in particular to an orifice flood discharge structure in a concrete dam, which comprises an orifice steel lining arranged along the water flow direction, wherein a concrete structure is poured around the orifice steel lining, the orifice steel lining comprises a plurality of steel lining sections which are sequentially connected, each steel lining section comprises a top plate, a left side plate, a bottom plate, a right side plate, a first connecting folded plate, a second connecting folded plate, a third connecting folded plate and a fourth connecting folded plate, welding seams formed by welding are adopted by all the parts and are butt-jointed seams, and the butt-jointed seams are more convenient for groove cutting and welding construction compared with fillet welds formed by welding in the prior art, the peripheral thicknesses of the butt-jointed seams are consistent, the welding quality and the reliability are improved, a detection working face is a plane, and the welding quality detection is also convenient. And, four angular edge departments of steel lining festival are not the right angle, have avoided four right angle angular edge departments stress concentration's problem, do benefit to concrete structure more and vibrate closely knit, improve construction quality.)

1. Orifice flood discharge structure in concrete dam, including the drill way steel lining that sets up along the rivers direction, concrete structure has been pour around the drill way steel lining, and drill way steel lining includes a plurality of steel lining festival (1) that connect gradually the setting, and steel lining festival (1) includes roof (11), left side board (12), bottom plate (13), right side board (14), its characterized in that: the foldable roof is characterized by further comprising a first connecting folded plate (15), a second connecting folded plate (16), a third connecting folded plate (17) and a fourth connecting folded plate (18), wherein the left side and the right side of the roof plate (11) are respectively provided with the first connecting folded plate (15) in a connecting mode, the first connecting folded plate (15) is located below the roof plate (11), and an included angle between the roof plate (11) and the first connecting folded plate (15) is 90-180 degrees;

the upper side and the lower side of the left side plate (12) are respectively provided with a second connecting folded plate (16) in a connecting way, the right side of the left side plate (12) of the second connecting folded plate (16) is positioned at the right side of the left side plate (12), the included angle between the left side plate (12) and the second connecting folded plate (16) is between 90 degrees and 180 degrees, the left side and the right side of the bottom plate (13) are respectively provided with a third connecting folded plate (17) in a connecting way, the third connecting folded plate (17) is positioned above the bottom plate (13), the included angle between the bottom plate (13) and the third connecting folded plate (17) is between 90 degrees and 180 degrees, the upper side and the lower side of the right side plate (14) are respectively provided with a fourth connecting folded plate (18) in a connecting way, the fourth connecting folded plate (18) is positioned at the left side of the right side plate (14), and the included;

the first connecting folded plate (15) on the left side of the top plate (11) is connected with the second connecting folded plate (16) on the upper side of the left side plate (12) in a welding mode, and a welding seam formed by welding the first connecting folded plate (15) on the left side of the top plate (11) with the second connecting folded plate (16) on the upper side of the left side plate (12) is a butt welding seam;

the second connecting folded plate (16) on the lower side of the left side plate (12) is connected with the third connecting folded plate (17) on the left side of the bottom plate (13) in a welding mode, and a welding seam formed by welding the second connecting folded plate (16) on the lower side of the left side plate (12) and the third connecting folded plate (17) on the left side of the bottom plate (13) is a butt welding seam;

the third connecting folded plate (17) on the right side of the bottom plate (13) is connected with the fourth connecting folded plate (18) on the lower side of the right side plate (14) in a welding mode, and a welding seam formed by welding the third connecting folded plate (17) on the right side of the bottom plate (13) with the fourth connecting folded plate (18) on the lower side of the right side plate (14) is a butt welding seam;

the fourth connecting folded plate (18) on the upper side of the right side plate (14) is connected with the first connecting folded plate (15) on the right side of the top plate (11) in a welding mode, and a welding seam formed by welding the fourth connecting folded plate (18) on the upper side of the right side plate (14) and the first connecting folded plate (15) on the right side of the top plate (11) is a butt welding seam.

2. An aperture flood discharge structure in a concrete dam according to claim 1, wherein: the top plate (11) and the bottom plate (13) are the same in shape and size, the top plate (11) and the bottom plate (13) are arranged in parallel, the left side plate (12) and the right side plate (14) are the same in shape and size, and the left side plate (12) and the right side plate (14) are arranged in parallel.

3. An aperture flood discharge structure in a concrete dam according to claim 2, wherein: the included angle between the top plate (11) and the first connecting folded plate (15) is 135 degrees, the included angle between the left side plate (12) and the second connecting folded plate (16) is 135 degrees, the included angle between the bottom plate (13) and the third connecting folded plate (17) is 135 degrees, and the included angle between the right side plate (14) and the fourth connecting folded plate (18) is 135 degrees.

4. An aperture flood discharge structure in a concrete dam according to claim 3, wherein: the first connecting folded plate (15), the second connecting folded plate (16), the third connecting folded plate (17) and the fourth connecting folded plate (18) are all the same in shape and size.

5. An aperture flood discharge structure in a concrete dam according to claim 1, wherein: the top plate (11) and the first connecting folded plate (15) are of an integral structure.

6. An aperture flood discharge structure in a concrete dam according to claim 1, wherein: the left side plate (12) and the second connecting folded plate (16) are of an integral structure.

7. An aperture flood discharge structure in a concrete dam according to claim 1, wherein: the bottom plate (13) and the third connecting folded plate (17) are of an integral structure.

8. An aperture flood discharge structure in a concrete dam according to claim 1, wherein: the right side plate (14) and the fourth connecting folded plate (18) are of an integral structure.

Technical Field

The invention relates to the technical field of concrete dams, in particular to an orifice flood discharge structure in a concrete dam.

Background

Be provided with rectangle drill way flood discharge structure in the big-and-middle-sized concrete dam, rectangle drill way flood discharge structure includes the drill way steel lining that sets up along the rivers direction, concrete structure has been pour around the drill way steel lining, the drill way steel lining includes a plurality of steel lining festival that set gradually through the welding, the cross sectional shape of steel lining festival is the rectangle, it is by the roof, the left side board, the bottom plate, four steel sheets of right side board weld in proper order and form, because the roof, the left side board, the bottom plate, the right side board sets up mutually perpendicular in proper order, the welding seam that the welding formed is the fillet weld, the corner edge department shape of fillet weld is irregular, thickness is inconsistent, accurately detect and bring the degree of difficulty for detection means such as ray, influence welding quality. Meanwhile, stress concentration exists at four right-angle corner edges of the steel lining section, so that the vibration compaction of a concrete structure is not facilitated, and the construction quality of a rectangular orifice flood discharge structure is influenced.

Disclosure of Invention

The invention aims to provide an orifice flood discharge structure in a concrete dam, which is convenient for welding quality detection and has better construction quality.

The technical scheme adopted by the invention for solving the technical problems is as follows: a rectangular orifice flood discharge structure in a concrete dam comprises an orifice steel lining arranged along the water flow direction, a concrete structure is poured around the orifice steel lining, the orifice steel lining comprises a plurality of steel lining sections which are sequentially connected, each steel lining section comprises a top plate, a left side plate, a bottom plate, a right side plate, a first connecting folded plate, a second connecting folded plate, a third connecting folded plate and a fourth connecting folded plate, the left side and the right side of the top plate are respectively connected with the first connecting folded plate, the first connecting folded plate is positioned below the top plate, and the included angle between the top plate and the first connecting folded plate is 90-180 degrees;

the upper side and the lower side of the left side plate are respectively provided with a second connecting folded plate in a connecting way, the right side of the left side plate of the second connecting folded plate is positioned at the right side of the left side plate, the included angle between the left side plate and the second connecting folded plate is between 90 degrees and 180 degrees, the left side and the right side of the bottom plate are respectively provided with a third connecting folded plate in a connecting way, the third connecting folded plate is positioned above the bottom plate, the included angle between the bottom plate and the third connecting folded plate is between 90 degrees and 180 degrees, the upper side and the lower side of the right side plate are respectively provided with a fourth connecting folded plate in a connecting way, the fourth connecting folded plate is positioned at the left side of the right side plate;

the first connecting folded plate on the left side of the top plate is connected with the second connecting folded plate on the upper side of the left side plate in a welding mode, and a welding seam formed by welding the first connecting folded plate on the left side of the top plate and the second connecting folded plate on the upper side of the left side plate is a butt welding seam;

the second connecting folded plate on the lower side of the left side plate is connected with the third connecting folded plate on the left side of the bottom plate in a welding mode, and a welding seam formed by welding the second connecting folded plate on the lower side of the left side plate and the third connecting folded plate on the left side of the bottom plate is a butt welding seam;

the third connecting folded plate on the right side of the bottom plate and the fourth connecting folded plate on the lower side of the right side plate are connected together in a welding mode, and a welding seam formed by welding the third connecting folded plate on the right side of the bottom plate and the fourth connecting folded plate on the lower side of the right side plate is a butt welding seam;

the fourth connecting folded plate on the upper side of the right side plate is connected with the first connecting folded plate on the right side of the top plate in a welding mode, and a welding seam formed by welding the fourth connecting folded plate on the upper side of the right side plate and the first connecting folded plate on the right side of the top plate is a butt welding seam.

Furthermore, the top plate and the bottom plate are the same in shape and size, the top plate and the bottom plate are arranged in parallel, the left side plate and the right side plate are the same in shape and size, and the left side plate and the right side plate are arranged in parallel.

Further, the included angle between the top plate and the first connecting folded plate is 135 degrees, the included angle between the left side plate and the second connecting folded plate is 135 degrees, the included angle between the bottom plate and the third connecting folded plate is 135 degrees, and the included angle between the right side plate and the fourth connecting folded plate is 135 degrees.

Further, the first connecting folded plate, the second connecting folded plate, the third connecting folded plate and the fourth connecting folded plate are all the same in shape and size.

Further, the top plate and the first connecting folded plate are of an integral structure.

Further, the left side panel and the second connecting folded plate are of an integral structure.

Further, the bottom plate and the third connecting folded plate are of an integral structure.

Further, the right side plate and the fourth connecting folded plate are of an integral structure.

The invention has the beneficial effects that: through setting up first connection folded plate, the second connection folded plate, folded plate and fourth connection folded plate are connected to the third, the roof, the left side board, bottom plate and right side board are through first connection folded plate, the folded plate is connected to the second, folded plate and fourth connection folded plate weld into the steel lining festival in proper order, the welding seam that the welding formed is butt weld, butt weld is for the fillet weld that the welding formed among the prior art, make things convenient for cutting groove and welding construction more, the peripheral thickness of butt weld is unanimous, welding quality and reliability all obtain the improvement, it is the plane to detect the working face, also be convenient for welding quality to detect. And, four angular edge departments of steel lining festival are not the right angle, have avoided four right angle angular edge departments stress concentration's problem, do benefit to concrete structure more and vibrate closely knit, improve construction quality.

Drawings

FIG. 1 is a schematic structural view of an orifice steel liner;

FIG. 2 is a schematic structural view of a steel lining segment;

the label is: steel lining segment 1, top panel 11, left side panel 12, bottom panel 13, right side panel 14, first connecting flap 15, second connecting flap 16, third connecting flap 17, fourth connecting flap 18.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

The orientations referred to below are based on the orientation of the components in fig. 2.

As shown in fig. 1 and 2, the flood discharge structure for the orifice in the concrete dam of the invention comprises an orifice steel lining arranged along the water flow direction, a concrete structure is poured around the orifice steel lining, the orifice steel lining comprises a plurality of steel lining sections 1 which are sequentially connected and arranged, each steel lining section 1 comprises a top plate 11, a left side plate 12, a bottom plate 13, a right side plate 14, a first connecting folded plate 15, a second connecting folded plate 16, a third connecting folded plate 17 and a fourth connecting folded plate 18, the left side and the right side of the top plate 11 are respectively connected and provided with one first connecting folded plate 15, the first connecting folded plate 15 is positioned below the top plate 11, and the included angle between the top plate 11 and the first connecting folded plate 15 is 90-180 degrees;

the upper side and the lower side of the left side plate 12 are respectively provided with a second connecting folded plate 16 in a connecting way, the right side of the left side plate 12 of the second connecting folded plate 16 is positioned at the right side of the left side plate 12, the included angle between the left side plate 12 and the second connecting folded plate 16 is between 90 degrees and 180 degrees, the left side and the right side of the bottom plate 13 are respectively provided with a third connecting folded plate 17 in a connecting way, the third connecting folded plate 17 is positioned above the bottom plate 13, the included angle between the bottom plate 13 and the third connecting folded plate 17 is between 90 degrees and 180 degrees, the upper side and the lower side of the right side plate 14 are respectively provided with a fourth connecting folded plate 18 in a connecting way, the fourth connecting folded plate 18 is positioned at the left side of the right side plate 14, and;

the first connecting folded plate 15 on the left side of the top plate 11 is connected with the second connecting folded plate 16 on the upper side of the left side plate 12 in a welding mode, and a welding seam formed by welding the first connecting folded plate 15 on the left side of the top plate 11 and the second connecting folded plate 16 on the upper side of the left side plate 12 is a butt welding seam;

the second connecting folded plate 16 at the lower side of the left side plate 12 and the third connecting folded plate 17 at the left side of the bottom plate 13 are connected together in a welding mode, and a welding seam formed by welding the second connecting folded plate 16 at the lower side of the left side plate 12 and the third connecting folded plate 17 at the left side of the bottom plate 13 is a butt welding seam;

the third connecting folded plate 17 on the right side of the bottom plate 13 is connected with the fourth connecting folded plate 18 on the lower side of the right side plate 14 in a welding mode, and a welding seam formed by welding the third connecting folded plate 17 on the right side of the bottom plate 13 and the fourth connecting folded plate 18 on the lower side of the right side plate 14 is a butt welding seam;

the fourth connecting flap 18 on the upper side of the right side plate 14 is connected with the first connecting flap 15 on the right side of the top plate 11 by welding, and the welding seam formed by welding the fourth connecting flap 18 on the upper side of the right side plate 14 and the first connecting flap 15 on the right side of the top plate 11 is a butt welding seam.

The welding line formed by welding each part of the steel lining section 1 is a butt welding line, compared with the fillet welding line formed by welding in the prior art, the butt welding line is more convenient for groove cutting and welding construction, the peripheral thickness of the butt welding line is consistent, the welding quality and reliability are improved, the detection working face is a plane, and the detection of the welding quality is also convenient. And, four angular edge departments of steel lining festival 1 are not the right angle, have avoided four right angle angular edge departments stress concentration's problem, do benefit to concrete structure more and vibrate closely knit, improve construction quality.

Specifically, in order to ensure the strength of the steel lining structure of the orifice formed by the steel lining segment 1, as shown in fig. 2, the top plate 11, the left side plate 12, the bottom plate 13, and the right side plate 14 are all rectangular, the top plate 11 and the bottom plate 13 have the same shape and size, the top plate 11 and the bottom plate 13 are arranged in parallel, the left side plate 12 and the right side plate 14 have the same shape and size, and the left side plate 12 and the right side plate 14 are arranged in parallel. To further facilitate the welding operation, the angle between the top panel 11 and the first connecting flap 15 is 135 °, the angle between the left side panel 12 and the second connecting flap 16 is 135 °, the angle between the bottom panel 13 and the third connecting flap 17 is 135 °, and the angle between the right side panel 14 and the fourth connecting flap 18 is 135 °. The first connecting flap 15, the second connecting flap 16, the third connecting flap 17 and the fourth connecting flap 18 are preferably rectangular in shape, and the first connecting flap 15, the second connecting flap 16, the third connecting flap 17 and the fourth connecting flap 18 are all the same in shape and size. The steel lining section 1 is good in overall regularity and uniform in stress, and the quality and the service life of the steel lining section are improved.

To facilitate the processing of the top panel 11 and the first linkage flap 15, the top panel 11 and the first linkage flap 15 are integrally formed. Similarly, the bottom panel 13 and the third connecting flap 17 are integrally formed, and the right side panel 14 and the fourth connecting flap 18 are integrally formed.