Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gravel grouting steel pipe pile and preparation method thereof
The invention relates to the technical field of pile foundations, and particularly relates to a gravel grouting steel pipe pile and a preparation method thereof. The gravel grouting steel pipe pile can be adopted in a common building construction site and can also be adopted when an existing building foundation with limited space is reinforced. Meanwhile, gravel grouting induration bodies are arranged on the inner side and the outer side of a steel pipe, so that the steel pipe is protected, and the steel pipe can be effectively prevented from being rusted. A primary grouting pipe and a secondary grouting pipe are arranged, so that the gravel grouting steel pipe pile can be grouted twice in the construction process, cement paste injected for the second time can enter a pile end and soil around the pile through the permeation and splitting effects, the soil within a certain thickness around the pile participates in stress of a pile body, the bearing capacity of the gravel grouting steelpipe pile is improved, and the vertical bearing capacity of the gravel grouting steel pipe pile is improved by 20-30% compared with that of a cast-in-situ bored pile with the same diameter.
本发明涉及桩基础技术领域，尤其涉及一种碎石注浆钢管桩及其制备方法，本发明提供的所述碎石注浆钢管桩可在一般建筑施工场地采用，也可在空间受限的既有建筑物地基基础加固时采用，同时通过在钢管内外侧设置碎石注浆固结体，形成对钢管的保护，能够有效的防止钢管锈蚀；通过设置一次注浆管和二次注浆管，保证所述碎石注浆钢管桩在施工过程中能够进行两次注浆，第二次注入的水泥浆可通过渗透、劈裂作用进入桩端和桩周土体，使桩周一定厚度内的土体参与桩体受力，提高了碎石注浆钢管桩的承载力，其竖向承载力较相同直径钻孔灌注桩提高了20～30％。
Gravel grouting steel pipe pile and preparation method thereof
The invention relates to the technical field of pile foundations, and particularly relates to a gravel grouting steel pipe pile and a preparation method thereof. The gravel grouting steel pipe pile can be adopted in a common building construction site and can also be adopted when an existing building foundation with limited space is reinforced. Meanwhile, gravel grouting induration bodies are arranged on the inner side and the outer side of a steel pipe, so that the steel pipe is protected, and the steel pipe can be effectively prevented from being rusted. A primary grouting pipe and a secondary grouting pipe are arranged, so that the gravel grouting steel pipe pile can be grouted twice in the construction process, cement paste injected for the second time can enter a pile end and soil around the pile through the permeation and splitting effects, the soil within a certain thickness around the pile participates in stress of a pile body, the bearing capacity of the gravel grouting steelpipe pile is improved, and the vertical bearing capacity of the gravel grouting steel pipe pile is improved by 20-30% compared with that of a cast-in-situ bored pile with the same diameter.
本发明涉及桩基础技术领域，尤其涉及一种碎石注浆钢管桩及其制备方法，本发明提供的所述碎石注浆钢管桩可在一般建筑施工场地采用，也可在空间受限的既有建筑物地基基础加固时采用，同时通过在钢管内外侧设置碎石注浆固结体，形成对钢管的保护，能够有效的防止钢管锈蚀；通过设置一次注浆管和二次注浆管，保证所述碎石注浆钢管桩在施工过程中能够进行两次注浆，第二次注入的水泥浆可通过渗透、劈裂作用进入桩端和桩周土体，使桩周一定厚度内的土体参与桩体受力，提高了碎石注浆钢管桩的承载力，其竖向承载力较相同直径钻孔灌注桩提高了20～30％。
Gravel grouting steel pipe pile and preparation method thereof
一种碎石注浆钢管桩及其制备方法
NIE QINGKE (Autor:in) / WANG GUOHUI (Autor:in) / CHEN JUNHONG (Autor:in) / LI YOUDONG (Autor:in) / LIU SHUANGCHEN (Autor:in) / CHEN JIAXI (Autor:in) / WANG QINGJUN (Autor:in) / ZHANG LIANG (Autor:in) / LIU SHUAI (Autor:in) / TAN KANG (Autor:in)
15.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
| Europäisches Patentamt | 2015
steel pipe pile for grouting and method of installation steel pipe pile for grouting
| Europäisches Patentamt | 2017
Steel pipe pile layered grouting device and grouting method
| Europäisches Patentamt | 2023
Pile end post-grouting steel pipe pile and construction method thereof
| Europäisches Patentamt | 2022