Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Inclined strut deformation control method for implementing foundation pit engineering through reverse construction method
The invention belongs to the field of underground space development, and relates to an inclined strut deformation control method for implementing foundation pit engineering through a reverse construction method. According to the main technical scheme, after a reverse construction structure beam plate reaches the design strength, a temporary bent frame is dismantled, and a lower inclined strut, an enclosing purlin and a stress transfer beam are constructed below the reverse construction structure beam plate; the enclosing purlins are located on the side faces of the foundation pit support structure. A supporting plate structure is arranged between the bottom of the enclosing purlin and the stress transfer beam and used for placing a servo jack in the later period; the stress transfer beams are effectively connected with the temporary supporting side columns and the lower inclined struts; one end of the lower inclined strut is connected with the stress conversion beam, and the other end is connected with the middle supporting pile; and a servo jack is arranged between the enclosing purlin and the stress transfer beam and is used for applying a jacking force. The construction method is suitable for the situation of large-depth multi-layer underground space development under the complex sensitive environment condition of the central urban area, and the construction method can effectively reduce the influence of the construction process on buildings and underground pipe networks around the foundation pit in the reverse construction method deep foundation pit engineering.
本发明属于地下空间开发领域的用于逆作法实施基坑工程的斜撑变形控制方法，主要技术方案为：待逆作结构梁板达到设计强度后拆除临时排架，在逆作结构梁板以下施工下斜撑、围檩和受力转换梁；围檩位于基坑围护结构的侧面上；围檩底部与受力转换梁之间设置托板结构用于后期放置伺服千斤顶；受力转换梁与临时支承边柱和下斜撑进行有效连接；下斜撑一端与受力转换梁连接，另一端与中间支承桩柱连接；在围檩和受力转换梁之间安装伺服千斤顶并施加顶推力。其适用于中心城区复杂敏感环境条件下的大深度多层地下空间开发的情况，该施工方法能够实现在逆作法深基坑工程中有效减小施工过程对基坑周边建构筑物及地下管网的影响。
Inclined strut deformation control method for implementing foundation pit engineering through reverse construction method
The invention belongs to the field of underground space development, and relates to an inclined strut deformation control method for implementing foundation pit engineering through a reverse construction method. According to the main technical scheme, after a reverse construction structure beam plate reaches the design strength, a temporary bent frame is dismantled, and a lower inclined strut, an enclosing purlin and a stress transfer beam are constructed below the reverse construction structure beam plate; the enclosing purlins are located on the side faces of the foundation pit support structure. A supporting plate structure is arranged between the bottom of the enclosing purlin and the stress transfer beam and used for placing a servo jack in the later period; the stress transfer beams are effectively connected with the temporary supporting side columns and the lower inclined struts; one end of the lower inclined strut is connected with the stress conversion beam, and the other end is connected with the middle supporting pile; and a servo jack is arranged between the enclosing purlin and the stress transfer beam and is used for applying a jacking force. The construction method is suitable for the situation of large-depth multi-layer underground space development under the complex sensitive environment condition of the central urban area, and the construction method can effectively reduce the influence of the construction process on buildings and underground pipe networks around the foundation pit in the reverse construction method deep foundation pit engineering.
本发明属于地下空间开发领域的用于逆作法实施基坑工程的斜撑变形控制方法，主要技术方案为：待逆作结构梁板达到设计强度后拆除临时排架，在逆作结构梁板以下施工下斜撑、围檩和受力转换梁；围檩位于基坑围护结构的侧面上；围檩底部与受力转换梁之间设置托板结构用于后期放置伺服千斤顶；受力转换梁与临时支承边柱和下斜撑进行有效连接；下斜撑一端与受力转换梁连接，另一端与中间支承桩柱连接；在围檩和受力转换梁之间安装伺服千斤顶并施加顶推力。其适用于中心城区复杂敏感环境条件下的大深度多层地下空间开发的情况，该施工方法能够实现在逆作法深基坑工程中有效减小施工过程对基坑周边建构筑物及地下管网的影响。
Inclined strut deformation control method for implementing foundation pit engineering through reverse construction method
用于逆作法实施基坑工程的斜撑变形控制方法
WENG QIPING (Autor:in) / LI JING (Autor:in) / WANG WEIDONG (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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