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A platform for research: civil engineering, architecture and urbanism
Foundation pit supporting structure without inner support and construction method thereof
The invention discloses a foundation pit supporting structure without an inner support and a construction method of the foundation pit supporting structure, and belongs to the technical field of foundation pit supporting structures. The construction method comprises the following steps that S10, construction preparation is conducted, the field environment is determined, and perfect protection measures are established; s20, foundation pit fender post construction is conducted, and the soil retaining and water stopping effects are achieved; s30, top beam steel bars and corner compression pier steel bars are bound; s40, corner pressure-bearing piers and tension connecting pieces are pre-buried; s50, concrete is poured to the beam crown and the corner compression piers; s60, a section steel compression arch frame is installed, and the stress characteristic of the arch component is utilized to change a pressure transmission path; s70, reasonable prestress is applied to the tension connecting piece so as to cope with various emergencies; and S80, foundation pit soil body excavation is conducted. The construction method has the beneficial effects that the foundation pit soil pressure can be transmitted to the two sides of the foundation pit through the construction method, under the condition that it is guaranteed that no inner support exists in the foundation pit construction excavation range, the stability of the foundation pit is maintained, replacement and replacement of the inner support are avoided, and the effects of saving the construction period and reducing the manufacturing cost are achieved.
本发明公开了一种无内支撑的基坑支护结构及其施工方法，基坑支护结构技术领域，该施工方法包括以下步骤：S10：施工准备，确定现场环境，建立完善保护措施；S20：基坑围护桩施工，达到挡土、止水的作用；S30：对冠梁钢筋和角部受压墩钢筋进行绑扎；S40：预埋角部承压墩和受拉连接件；S50：对梁冠和角部受压墩浇灌混凝土；S60：安装型钢受压拱架，利用拱形构件的受力特点，改变压力传递路径；S70：对受拉连接件施加合理预应力，以应对各种突发情况；S80：基坑土体开挖。本发明的有益效果是：该施工方法能将基坑土压力传递至基坑两侧，在保证基坑施工开挖范围内没有内支撑的情况下，维护基坑稳定，且避免拆换内支撑，起到节约工期、降低造价的作用。
Foundation pit supporting structure without inner support and construction method thereof
The invention discloses a foundation pit supporting structure without an inner support and a construction method of the foundation pit supporting structure, and belongs to the technical field of foundation pit supporting structures. The construction method comprises the following steps that S10, construction preparation is conducted, the field environment is determined, and perfect protection measures are established; s20, foundation pit fender post construction is conducted, and the soil retaining and water stopping effects are achieved; s30, top beam steel bars and corner compression pier steel bars are bound; s40, corner pressure-bearing piers and tension connecting pieces are pre-buried; s50, concrete is poured to the beam crown and the corner compression piers; s60, a section steel compression arch frame is installed, and the stress characteristic of the arch component is utilized to change a pressure transmission path; s70, reasonable prestress is applied to the tension connecting piece so as to cope with various emergencies; and S80, foundation pit soil body excavation is conducted. The construction method has the beneficial effects that the foundation pit soil pressure can be transmitted to the two sides of the foundation pit through the construction method, under the condition that it is guaranteed that no inner support exists in the foundation pit construction excavation range, the stability of the foundation pit is maintained, replacement and replacement of the inner support are avoided, and the effects of saving the construction period and reducing the manufacturing cost are achieved.
本发明公开了一种无内支撑的基坑支护结构及其施工方法，基坑支护结构技术领域，该施工方法包括以下步骤：S10：施工准备，确定现场环境，建立完善保护措施；S20：基坑围护桩施工，达到挡土、止水的作用；S30：对冠梁钢筋和角部受压墩钢筋进行绑扎；S40：预埋角部承压墩和受拉连接件；S50：对梁冠和角部受压墩浇灌混凝土；S60：安装型钢受压拱架，利用拱形构件的受力特点，改变压力传递路径；S70：对受拉连接件施加合理预应力，以应对各种突发情况；S80：基坑土体开挖。本发明的有益效果是：该施工方法能将基坑土压力传递至基坑两侧，在保证基坑施工开挖范围内没有内支撑的情况下，维护基坑稳定，且避免拆换内支撑，起到节约工期、降低造价的作用。
Foundation pit supporting structure without inner support and construction method thereof
一种无内支撑的基坑支护结构及其施工方法
GE HUAKANG (author) / ZHANG YU (author) / GUO ZHIGANG (author) / ZHOU BAOSHENG (author) / LI SILIANG (author) / LI JIANSHENG (author) / REN LIWEI (author) / ZHANG WEI (author) / LI SHICHENG (author)
2023-08-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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