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A platform for research: civil engineering, architecture and urbanism
Foundation treatment method for applying subsidence-reducing sparse piles and reinforced gravel structure to fill stratum
The invention belongs to the technical field of foundation treatment, and discloses a composite foundation based on a sinking-reducing sparse pile and a reinforced gravel structure and a treatment method of the composite foundation. The sinking-reducing sparse pile is arranged on the lower side of the reinforced gravel structure, the top of the pile extends into the reinforced gravel structure, a cast-in-situ bored pile is adopted, and the arrangement mode is determined according to the form of a building foundation; the reinforced gravel structure is laid on the lower side of a building foundation and is formed by mixing 1-3 cm graded gravel and medium-coarse sand according to the proportion of 7: 3 and then laying the mixture in a layered mode, and one or more geogrids are arranged in the middle of the reinforced gravel structure. According to the method, the settlement reducing and scattering piles are combined with the reinforced gravel structure, the settlement reducing and scattering piles are arranged to penetrate through the soil filling layer, the upper reinforced gravel structure layer and the lower foundation soil with the good property can be effectively connected, the upper load is transmitted to the well-underlying soil layer, meanwhile, the reinforced gravel structure layer serves as a building foundation bearing layer and can also bear part of the load, and therefore the bearing capacity of the building is improved. And the foundation settlement is effectively controlled through the combined action of the two.
本发明属于地基处理技术领域，公开了一种基于减沉疏桩和加筋碎石结构的复合地基及其处理方法，减沉疏桩设置在加筋碎石结构下侧，桩顶伸入加筋碎石结构，采用钻孔灌注桩，根据建筑物基础形式确定布置方式；加筋碎石结构铺设在建筑物基础下侧，采用1～3cm级配碎石和中粗砂按照7：3的比例拌合后分层铺筑而成，中间设置一道或多道土工格栅；本发明是将减沉疏桩与加筋碎石结构结合，通过布置减沉疏桩穿过填土层，能有效的连接上部加筋碎石结构层和下部性质较好的地基土，将上部荷载传递至下伏较好的土层，同时，加筋碎石结构层作为建筑物基础持力层也能承受部分荷载，通过两者共同作用来有效地控制地基沉降。
Foundation treatment method for applying subsidence-reducing sparse piles and reinforced gravel structure to fill stratum
The invention belongs to the technical field of foundation treatment, and discloses a composite foundation based on a sinking-reducing sparse pile and a reinforced gravel structure and a treatment method of the composite foundation. The sinking-reducing sparse pile is arranged on the lower side of the reinforced gravel structure, the top of the pile extends into the reinforced gravel structure, a cast-in-situ bored pile is adopted, and the arrangement mode is determined according to the form of a building foundation; the reinforced gravel structure is laid on the lower side of a building foundation and is formed by mixing 1-3 cm graded gravel and medium-coarse sand according to the proportion of 7: 3 and then laying the mixture in a layered mode, and one or more geogrids are arranged in the middle of the reinforced gravel structure. According to the method, the settlement reducing and scattering piles are combined with the reinforced gravel structure, the settlement reducing and scattering piles are arranged to penetrate through the soil filling layer, the upper reinforced gravel structure layer and the lower foundation soil with the good property can be effectively connected, the upper load is transmitted to the well-underlying soil layer, meanwhile, the reinforced gravel structure layer serves as a building foundation bearing layer and can also bear part of the load, and therefore the bearing capacity of the building is improved. And the foundation settlement is effectively controlled through the combined action of the two.
本发明属于地基处理技术领域，公开了一种基于减沉疏桩和加筋碎石结构的复合地基及其处理方法，减沉疏桩设置在加筋碎石结构下侧，桩顶伸入加筋碎石结构，采用钻孔灌注桩，根据建筑物基础形式确定布置方式；加筋碎石结构铺设在建筑物基础下侧，采用1～3cm级配碎石和中粗砂按照7：3的比例拌合后分层铺筑而成，中间设置一道或多道土工格栅；本发明是将减沉疏桩与加筋碎石结构结合，通过布置减沉疏桩穿过填土层，能有效的连接上部加筋碎石结构层和下部性质较好的地基土，将上部荷载传递至下伏较好的土层，同时，加筋碎石结构层作为建筑物基础持力层也能承受部分荷载，通过两者共同作用来有效地控制地基沉降。
Foundation treatment method for applying subsidence-reducing sparse piles and reinforced gravel structure to fill stratum
减沉疏桩和加筋碎石结构应用于填土地层的地基处理方法
LI QIANG (author) / LI HUIZHONG (author) / ZHAO HAIFENG (author) / LIU GUODONG (author) / LUO FEI (author) / YE ZIYI (author) / JIA JING (author) / YANG JINBAO (author) / XIAO SHU (author) / DU JINLONG (author)
2023-08-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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