Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of underground pump station high-rotating-speed unit anti-vibration structure
The invention discloses a construction method of an underground pump station high-rotating-speed unit anti-vibration structure. The construction method comprises the following steps that S1, when an underground pump station plant is excavated, anti-vibration grooves are excavated in the positions, extending to a motor floor slab from the top of a water inlet pipe/water outlet pipe, of the rock walls on the outer sides of the upstream side wall and the downstream side wall of the underground pump station plant; S2, concrete is sprayed on the surfaces of the anti-vibration grooves, system anchor rods are installed in the anti-vibration grooves, one ends of the system anchor rods are anchored into the rock walls of the plant, and the other ends of the system anchor rods are bent to be bound or welded to side wall steel bars; and S3, concrete is poured into the anti-vibration grooves and the upstream and downstream side walls of the plant at the same time, and the surrounding rock and the underground pump station plant structure are combined into a whole. By the adoption of the method, the integrity of the surrounding rock and the plant structure can be effectively improved, the natural vibration frequency of the plant structure is increased, the staggered opening degree of the natural vibration frequency and the rotating frequency of a high-rotating-speed unit is increased, and therefore a resonance area is avoided, and the anti-vibration safety of the underground pump station plant structure is guaranteed.
本发明公开了一种地下泵站高转速机组抗振结构的施工方法，包括以下步骤：S1：在地下泵站厂房开挖时，在地下泵站厂房的上游侧边墙和下游侧边墙外侧的岩壁上，从进水管/出水管的顶部开始延伸到电动机层楼板位置开挖抗振槽；S2：在抗振槽表面喷设混凝土，在抗振槽内安装系统锚杆，系统锚杆一端锚入厂房岩壁内，另一端弯折与边墙钢筋绑扎或焊接；S3：抗振槽与厂房上下游侧边墙同时浇筑混凝土，将围岩和地下泵站厂房结构结合为一体。采用本发明的方法可有效提高围岩和厂房结构的整体性，通过增加厂房结构自振频率，加大与高转速机组转动频率的错开度，从而避开共振区域，保证了地下泵站厂房结构的抗振安全。
Construction method of underground pump station high-rotating-speed unit anti-vibration structure
The invention discloses a construction method of an underground pump station high-rotating-speed unit anti-vibration structure. The construction method comprises the following steps that S1, when an underground pump station plant is excavated, anti-vibration grooves are excavated in the positions, extending to a motor floor slab from the top of a water inlet pipe/water outlet pipe, of the rock walls on the outer sides of the upstream side wall and the downstream side wall of the underground pump station plant; S2, concrete is sprayed on the surfaces of the anti-vibration grooves, system anchor rods are installed in the anti-vibration grooves, one ends of the system anchor rods are anchored into the rock walls of the plant, and the other ends of the system anchor rods are bent to be bound or welded to side wall steel bars; and S3, concrete is poured into the anti-vibration grooves and the upstream and downstream side walls of the plant at the same time, and the surrounding rock and the underground pump station plant structure are combined into a whole. By the adoption of the method, the integrity of the surrounding rock and the plant structure can be effectively improved, the natural vibration frequency of the plant structure is increased, the staggered opening degree of the natural vibration frequency and the rotating frequency of a high-rotating-speed unit is increased, and therefore a resonance area is avoided, and the anti-vibration safety of the underground pump station plant structure is guaranteed.
本发明公开了一种地下泵站高转速机组抗振结构的施工方法，包括以下步骤：S1：在地下泵站厂房开挖时，在地下泵站厂房的上游侧边墙和下游侧边墙外侧的岩壁上，从进水管/出水管的顶部开始延伸到电动机层楼板位置开挖抗振槽；S2：在抗振槽表面喷设混凝土，在抗振槽内安装系统锚杆，系统锚杆一端锚入厂房岩壁内，另一端弯折与边墙钢筋绑扎或焊接；S3：抗振槽与厂房上下游侧边墙同时浇筑混凝土，将围岩和地下泵站厂房结构结合为一体。采用本发明的方法可有效提高围岩和厂房结构的整体性，通过增加厂房结构自振频率，加大与高转速机组转动频率的错开度，从而避开共振区域，保证了地下泵站厂房结构的抗振安全。
Construction method of underground pump station high-rotating-speed unit anti-vibration structure
一种地下泵站高转速机组抗振结构的施工方法
ZHU XUJIE (Autor:in) / WU KUI (Autor:in) / YAN PEILIN (Autor:in) / XU AIZHONG (Autor:in) / WANG YONG (Autor:in) / LIU YONG (Autor:in) / LU DONGSHENG (Autor:in)
18.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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