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A platform for research: civil engineering, architecture and urbanism
Pile-anchor type supporting system for complex large special-shaped deep foundation pit and construction method
The invention relates to a complex large special-shaped deep foundation pit pile anchor type supporting system and a construction method. The complex large special-shaped deep foundation pit pile anchor type supporting system comprises a gradient variable-diameter stirring type anchor rod, a horizontal anchor cable prestressed reinforcement inner supporting device, a back pressure soil permeable point press-in anchoring steel plate leaking stoppage device, an anti-floating anchor cable and a jack. The grouting device has the beneficial effects that the gradient variable-diameter stirring type anchor rod is adopted, the first blade and the second blade which are different in opening direction and opening rotating speed are installed on the gradient stirring type anchor rod through the fixing plate and the one-way rotating hinge, the opening condition of the grouting hole is controlled through the pressurizing platform, and different diameters and different grouting amounts can be selected according to construction requirements; construction is flexible and controllable, and good technical benefits are achieved; the supporting mode that external prestress is arranged on concrete is adopted, the horizontal anchor cable prestressed reinforcement inner supporting device is matched with the auxiliary inclined strut, and the stability of the corner of the special-shaped foundation pit is guaranteed.
本发明涉及一种复杂大型异形深基坑桩锚式支护体系及施工方法，包括梯度变径搅拌式锚杆、水平锚索预应力钢筋内支撑装置、反压土透水点压入锚固钢板堵漏装置、抗浮锚索和千斤顶。本发明的有益效果是：采用了梯度变径搅拌式锚杆，通过固定板和单向旋转合页在梯度搅拌式锚杆安装打开方向和打开转速不同的第一叶片和第二叶片，并通过加压平台控制注浆孔的打开情况，可根据施工需求选择不同直径、不同注浆量，施工灵活可控，具有较好的技术效益；采用混凝土上设置体外预应力的支撑方式，通过水平锚索预应力钢筋内支撑装置配合辅助斜撑，保证了异形基坑角部的稳定性。
Pile-anchor type supporting system for complex large special-shaped deep foundation pit and construction method
The invention relates to a complex large special-shaped deep foundation pit pile anchor type supporting system and a construction method. The complex large special-shaped deep foundation pit pile anchor type supporting system comprises a gradient variable-diameter stirring type anchor rod, a horizontal anchor cable prestressed reinforcement inner supporting device, a back pressure soil permeable point press-in anchoring steel plate leaking stoppage device, an anti-floating anchor cable and a jack. The grouting device has the beneficial effects that the gradient variable-diameter stirring type anchor rod is adopted, the first blade and the second blade which are different in opening direction and opening rotating speed are installed on the gradient stirring type anchor rod through the fixing plate and the one-way rotating hinge, the opening condition of the grouting hole is controlled through the pressurizing platform, and different diameters and different grouting amounts can be selected according to construction requirements; construction is flexible and controllable, and good technical benefits are achieved; the supporting mode that external prestress is arranged on concrete is adopted, the horizontal anchor cable prestressed reinforcement inner supporting device is matched with the auxiliary inclined strut, and the stability of the corner of the special-shaped foundation pit is guaranteed.
本发明涉及一种复杂大型异形深基坑桩锚式支护体系及施工方法，包括梯度变径搅拌式锚杆、水平锚索预应力钢筋内支撑装置、反压土透水点压入锚固钢板堵漏装置、抗浮锚索和千斤顶。本发明的有益效果是：采用了梯度变径搅拌式锚杆，通过固定板和单向旋转合页在梯度搅拌式锚杆安装打开方向和打开转速不同的第一叶片和第二叶片，并通过加压平台控制注浆孔的打开情况，可根据施工需求选择不同直径、不同注浆量，施工灵活可控，具有较好的技术效益；采用混凝土上设置体外预应力的支撑方式，通过水平锚索预应力钢筋内支撑装置配合辅助斜撑，保证了异形基坑角部的稳定性。
Pile-anchor type supporting system for complex large special-shaped deep foundation pit and construction method
复杂大型异形深基坑桩锚式支护体系及施工方法
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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