A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Subway vibration reduction composite foundation and construction method thereof
The invention is applicable to the technical field of subway construction, and provides a subway vibration reduction composite foundation which is arranged between a track plate and a lining and comprises at least one vibration reduction mortar cushion layer, and at least two layers of concrete foundations. The vibration reduction mortar cushion layer is located between two adjacent layers of concrete foundations for absorbing vibration energy; a track plate is installed on the concrete foundation located on the uppermost layer, and the concrete foundation located on the lowermost layer is arranged on the lining. The beneficial effects are that: the vibration reduction mortar cushion layer made of the high-damping cement-based material can be used for absorbing vibration energy of variousfrequencies; therefore, the original damping and vibration response of the concrete foundation are changed; the problem that an existing spring and an existing rubber vibration reduction support are insufficient in lateral rigidity is solved, the vibration reduction technology is developed towards diversified directions on the basis of the original technology, vibration energy transmitted to the ground through a soil body when a subway runs is effectively reduced, and then the influence of vibration on the surrounding environment is reduced.
本发明适用于地铁施工技术领域，提供了一种地铁减振复合基础，置于轨道板和衬砌之间，包括：减振砂浆垫层，数量为至少一个，处于相邻两层混凝土基础之间，用于吸收振动能量；以及混凝土基础，数量为至少两层，处于最上层的所述混凝土基础上安装有所述轨道板，处于最下层的所述混凝土基础设置在所述衬砌上，本发明的有益效果是：利用高阻尼水泥基材料制成的减振砂浆垫层可以吸收各种频率的振动能量，从而改变了混凝土基础的原有阻尼与振动响应，克服了现有弹簧和橡胶减振支座侧向刚度不足的问题，使得减振技术在原有的技术上朝着多样化的方向发展，有效的降低了地铁运行时通过土体传递到地面的振动能量，进而减小振动对周边环境的影响。
Subway vibration reduction composite foundation and construction method thereof
The invention is applicable to the technical field of subway construction, and provides a subway vibration reduction composite foundation which is arranged between a track plate and a lining and comprises at least one vibration reduction mortar cushion layer, and at least two layers of concrete foundations. The vibration reduction mortar cushion layer is located between two adjacent layers of concrete foundations for absorbing vibration energy; a track plate is installed on the concrete foundation located on the uppermost layer, and the concrete foundation located on the lowermost layer is arranged on the lining. The beneficial effects are that: the vibration reduction mortar cushion layer made of the high-damping cement-based material can be used for absorbing vibration energy of variousfrequencies; therefore, the original damping and vibration response of the concrete foundation are changed; the problem that an existing spring and an existing rubber vibration reduction support are insufficient in lateral rigidity is solved, the vibration reduction technology is developed towards diversified directions on the basis of the original technology, vibration energy transmitted to the ground through a soil body when a subway runs is effectively reduced, and then the influence of vibration on the surrounding environment is reduced.
本发明适用于地铁施工技术领域，提供了一种地铁减振复合基础，置于轨道板和衬砌之间，包括：减振砂浆垫层，数量为至少一个，处于相邻两层混凝土基础之间，用于吸收振动能量；以及混凝土基础，数量为至少两层，处于最上层的所述混凝土基础上安装有所述轨道板，处于最下层的所述混凝土基础设置在所述衬砌上，本发明的有益效果是：利用高阻尼水泥基材料制成的减振砂浆垫层可以吸收各种频率的振动能量，从而改变了混凝土基础的原有阻尼与振动响应，克服了现有弹簧和橡胶减振支座侧向刚度不足的问题，使得减振技术在原有的技术上朝着多样化的方向发展，有效的降低了地铁运行时通过土体传递到地面的振动能量，进而减小振动对周边环境的影响。
Subway vibration reduction composite foundation and construction method thereof
一种地铁减振复合基础及其施工方法
LIU TIEJUN (author) / SONG WEN (author) / ZOU DUJIAN (author) / ZHOU AO (author) / OU JINPING (author)
2020-07-17
Patent
Electronic Resource
Chinese
IPC:
E01B
PERMANENT WAY
,
Gleisoberbau
Subway foundation pit support structure and construction method thereof
| European Patent Office | 2023
Foamed aluminum/polyurethane vibration reduction pile foundation structure for subway tunnel
| European Patent Office | 2024
Vibration reduction barrier structure for subway tunnel and construction method
| European Patent Office | 2022
Subway pile foundation construction pre-grouting protection method and application thereof
| European Patent Office | 2020
Deep foundation pit structure above subway tunnel and construction method thereof
| European Patent Office | 2020