Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bidirectional stress relief and inclination rectification method for piled raft foundation
The invention relates to the field of buildings, and provides a piled raft foundation two-way stress relieving and inclination rectifying method, which comprises the following steps of: punching a row of horizontal stress relieving holes in the outer side ground of the edge of a raft plate with minimum settlement of the piled raft foundation to relieve the side resistance when a building tilts back and the drag force when the building further sinks; a plurality of vertical stress relief holes are drilled downwards from the top face of the raft into a pile end bearing layer, soil is dug out in the bearing layer of the arrangement area of the vertical stress relief holes for disturbance, stress at the lower end of a foundation pile is relieved, and the building is promoted to settle, so that inclination rectification is achieved. The method has the beneficial effects that the damage to the building and the piled raft foundation is small, and the safety of the rectification method is obviously improved; the stress relief hole is convenient to construct and high in adaptability to the stratum; and the rectification efficiency is obviously improved.
本发明涉及建筑领域，提供一种桩筏基础双向应力解除纠倾方法，在桩筏基础沉降最小的筏板边缘的外侧地面，打一排水平应力解除孔，解除建筑物回倾时的侧阻力和进一步下沉时的拖曳力；自筏板顶面向下打多个竖向应力解除孔至桩端持力层内，并在竖向应力解除孔的布置区域的持力层内掏土扰动，解除基桩下端的应力，促使建筑物沉降从而实现纠倾。本发明的有益效果在于：对建筑物及桩筏基础本身损伤小，纠倾方法安全性显著提高；应力解除孔施工便利，对地层的适应性强；纠倾效率显著提高。
Bidirectional stress relief and inclination rectification method for piled raft foundation
The invention relates to the field of buildings, and provides a piled raft foundation two-way stress relieving and inclination rectifying method, which comprises the following steps of: punching a row of horizontal stress relieving holes in the outer side ground of the edge of a raft plate with minimum settlement of the piled raft foundation to relieve the side resistance when a building tilts back and the drag force when the building further sinks; a plurality of vertical stress relief holes are drilled downwards from the top face of the raft into a pile end bearing layer, soil is dug out in the bearing layer of the arrangement area of the vertical stress relief holes for disturbance, stress at the lower end of a foundation pile is relieved, and the building is promoted to settle, so that inclination rectification is achieved. The method has the beneficial effects that the damage to the building and the piled raft foundation is small, and the safety of the rectification method is obviously improved; the stress relief hole is convenient to construct and high in adaptability to the stratum; and the rectification efficiency is obviously improved.
本发明涉及建筑领域，提供一种桩筏基础双向应力解除纠倾方法，在桩筏基础沉降最小的筏板边缘的外侧地面，打一排水平应力解除孔，解除建筑物回倾时的侧阻力和进一步下沉时的拖曳力；自筏板顶面向下打多个竖向应力解除孔至桩端持力层内，并在竖向应力解除孔的布置区域的持力层内掏土扰动，解除基桩下端的应力，促使建筑物沉降从而实现纠倾。本发明的有益效果在于：对建筑物及桩筏基础本身损伤小，纠倾方法安全性显著提高；应力解除孔施工便利，对地层的适应性强；纠倾效率显著提高。
Bidirectional stress relief and inclination rectification method for piled raft foundation
一种桩筏基础双向应力解除纠倾方法
XIAO JUNHUA (Autor:in) / SUN JIANPING (Autor:in) / GAO XIANG (Autor:in) / KONG LINGYANG (Autor:in)
19.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
| TIBKAT | 1976
| NTIS | 1976
Soil-Piled Raft Foundation Interaction
| British Library Conference Proceedings | 1991