Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In-situ protection method for underground cable penetrating through subway foundation pit excavation
Relates to the field of subway construction engineering, and provides an in-situ protection method for penetrating through an underground cable during excavation of a subway foundation pit, which comprises the following steps: S1, oppositely excavating the subway foundation pit from two sides of the cable, and reserving a soil layer with the width of A to support the cable; s2, a foundation pit enclosure structure is constructed on the inner side face of the subway foundation pit, and a notch with the width A is formed in the cable; s3, in-situ protection structures at least borne on the foundation pit support structures on the two sides of the cable are constructed for the cable; S4, the soil layer with the height H for supporting the cable is excavated from top to bottom until the soil layer with the height H in the notch is completely excavated; s5, a reinforced concrete baffle is constructed in the notch, the foundation pit support structures on the two sides of the notch are connected, and then the remaining soil layer is excavated; and S6, the step S4 and the step S5 are repeated to excavate and construct the reinforced concrete baffle layer by layer until the bottom of the subway foundation pit is reached. The method is used for solving the technical problems of slow construction progress, unstable power supply network and investment waste of urban underground cable channels.
涉及地铁建筑工程领域，提供一种地铁基坑开挖穿过地下电缆的原位保护方法，包括以下步骤：S1从电缆两侧相对开挖地铁基坑保留宽度为A的土层支撑电缆；S2在地铁基坑内侧面施作基坑围护结构并在电缆处形成宽度为A的缺口；S3针对电缆施作至少承载于电缆两侧的基坑围护结构上的原位保护结构：S4由上而下开挖高度H的支撑电缆的土层至所述缺口内高度H的土层全部挖出；S5在所述缺口内施作钢筋混泥土挡板，并连接缺口两侧的基坑围护结构，再开挖剩余的土层；S6重复步骤S4和S5逐层开挖和施作钢筋混凝土挡板，直至地铁基坑底部。用于解决城市地下电缆通道的施工进度慢，供电网络不稳定及投资浪费的技术问题。
In-situ protection method for underground cable penetrating through subway foundation pit excavation
Relates to the field of subway construction engineering, and provides an in-situ protection method for penetrating through an underground cable during excavation of a subway foundation pit, which comprises the following steps: S1, oppositely excavating the subway foundation pit from two sides of the cable, and reserving a soil layer with the width of A to support the cable; s2, a foundation pit enclosure structure is constructed on the inner side face of the subway foundation pit, and a notch with the width A is formed in the cable; s3, in-situ protection structures at least borne on the foundation pit support structures on the two sides of the cable are constructed for the cable; S4, the soil layer with the height H for supporting the cable is excavated from top to bottom until the soil layer with the height H in the notch is completely excavated; s5, a reinforced concrete baffle is constructed in the notch, the foundation pit support structures on the two sides of the notch are connected, and then the remaining soil layer is excavated; and S6, the step S4 and the step S5 are repeated to excavate and construct the reinforced concrete baffle layer by layer until the bottom of the subway foundation pit is reached. The method is used for solving the technical problems of slow construction progress, unstable power supply network and investment waste of urban underground cable channels.
涉及地铁建筑工程领域，提供一种地铁基坑开挖穿过地下电缆的原位保护方法，包括以下步骤：S1从电缆两侧相对开挖地铁基坑保留宽度为A的土层支撑电缆；S2在地铁基坑内侧面施作基坑围护结构并在电缆处形成宽度为A的缺口；S3针对电缆施作至少承载于电缆两侧的基坑围护结构上的原位保护结构：S4由上而下开挖高度H的支撑电缆的土层至所述缺口内高度H的土层全部挖出；S5在所述缺口内施作钢筋混泥土挡板，并连接缺口两侧的基坑围护结构，再开挖剩余的土层；S6重复步骤S4和S5逐层开挖和施作钢筋混凝土挡板，直至地铁基坑底部。用于解决城市地下电缆通道的施工进度慢，供电网络不稳定及投资浪费的技术问题。
In-situ protection method for underground cable penetrating through subway foundation pit excavation
一种地铁基坑开挖穿过地下电缆的原位保护方法
WANG XIAORAN (Autor:in) / LIU HEFENG (Autor:in) / ZHONG CE (Autor:in) / SHI QINFANG (Autor:in) / WAN ZHIYUN (Autor:in) / WANG CHONGKANG (Autor:in) / DENG XIAONAN (Autor:in) / HE YONGQUAN (Autor:in) / LIU QINGQUAN (Autor:in) / LI YONGQUAN (Autor:in)
30.12.2022
Patent
Elektronische Ressource
Chinesisch
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