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A platform for research: civil engineering, architecture and urbanism
Point laying periodic cushion layer vibration reduction ballast bed
The invention provides a point laying periodic cushion layer vibration reduction ballast bed which comprises a periodic composite ballast bed plate and a concrete base arranged below the periodic composite ballast bed plate, the periodic composite ballast bed plate and the concrete base are limited through a limiting structure, and relative displacement is prevented. The periodic composite roadbed bed plate is formed by alternately arranging and solidifying concrete slabs and periodic cushion layers from top to bottom, and the projections of the concrete slabs in the vertical direction completely coincide. Each concrete slab and the adjacent periodic cushion layer below the concrete slab form a basic unit, and the number of periodic repetitions of the basic units in the vertical direction is not less than 2; and the periodic cushion layer is formed by regularly and discretely distributing square cushion plates along the driving direction. Elastic wave forbidden bands are formed in the vertical direction, the transverse direction and the longitudinal direction of the vibration reduction ballast bed, propagation of vibration in the three directions can be effectively controlled, the forbidden band range can be actively adjusted by changing the geometric dimension of the structure and material composition, and adjustability is high.
本发明提供一种点铺周期垫层减振道床，包括周期复合道床板及设置在其下方的混凝土基底，所述周期复合道床板与所述混凝土基底之间通过限位结构限位，防止发生相对位移，其中，所述周期复合道床板由混凝土板和周期垫层由上至下交替排列固结而成，且混凝土板在竖直方向的投影完全重合；每一混凝土板和其下方相邻的周期垫层构成一个基本单元，所述基本单元沿竖直方向周期重复数不少于2；所述周期垫层由方形垫板沿行车方向按规律离散分布。该减振道床在竖直方向、横向和纵向上形成弹性波禁带，能有效控制三个方向振动的传播，通过改变结构几何尺寸和材料组成能主动调节禁带范围，可调节性强。
Point laying periodic cushion layer vibration reduction ballast bed
The invention provides a point laying periodic cushion layer vibration reduction ballast bed which comprises a periodic composite ballast bed plate and a concrete base arranged below the periodic composite ballast bed plate, the periodic composite ballast bed plate and the concrete base are limited through a limiting structure, and relative displacement is prevented. The periodic composite roadbed bed plate is formed by alternately arranging and solidifying concrete slabs and periodic cushion layers from top to bottom, and the projections of the concrete slabs in the vertical direction completely coincide. Each concrete slab and the adjacent periodic cushion layer below the concrete slab form a basic unit, and the number of periodic repetitions of the basic units in the vertical direction is not less than 2; and the periodic cushion layer is formed by regularly and discretely distributing square cushion plates along the driving direction. Elastic wave forbidden bands are formed in the vertical direction, the transverse direction and the longitudinal direction of the vibration reduction ballast bed, propagation of vibration in the three directions can be effectively controlled, the forbidden band range can be actively adjusted by changing the geometric dimension of the structure and material composition, and adjustability is high.
本发明提供一种点铺周期垫层减振道床，包括周期复合道床板及设置在其下方的混凝土基底，所述周期复合道床板与所述混凝土基底之间通过限位结构限位，防止发生相对位移，其中，所述周期复合道床板由混凝土板和周期垫层由上至下交替排列固结而成，且混凝土板在竖直方向的投影完全重合；每一混凝土板和其下方相邻的周期垫层构成一个基本单元，所述基本单元沿竖直方向周期重复数不少于2；所述周期垫层由方形垫板沿行车方向按规律离散分布。该减振道床在竖直方向、横向和纵向上形成弹性波禁带，能有效控制三个方向振动的传播，通过改变结构几何尺寸和材料组成能主动调节禁带范围，可调节性强。
Point laying periodic cushion layer vibration reduction ballast bed
一种点铺周期垫层减振道床
QI CHUNYU (author) / JIANG BOLONG (author) / LIU JIZHAO (author) / HU WENLIN (author) / WANG SHAOLIN (author) / HE BIN (author) / YANG BAOFENG (author) / YANG QIZHEN (author) / LIU DAOTONG (author) / TAN DAZHENG (author)
2021-04-09
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
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