Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Semi-reinforced non-soil-squeezing pile for reducing negative friction in collapsible loess area and construction method of semi-reinforced non-soil-squeezing pile
The invention relates to the technical field of civil engineering, in particular to a semi-reinforced non-soil-squeezing pile for reducing negative friction in a collapsible loess area and a construction method. Comprising one or more groups of first bearing slurry uniformly arranged on the concrete side surface of a pile hole and arranged below the neutral point of the concrete; firstly, a pile hole is drilled, a first high-pressure grouting pipe is pre-buried in the side face of the pile hole, and then concrete is injected into the pile hole; after the pile foundation is solidified, high-pressure grouting is conducted through the first high-pressure grouting pipe, so that the first bearing slurry is formed; the peripheral side of the upper portion of the pile foundation is annularly cut, and an annular cavity is formed; and finally, the annular cavity is filled with sand. On one hand, the first bearing slurry is arranged below the neutral point of the pile foundation, and the bearing capacity of the pile foundation is increased; and on the other hand, by filling sand, collapsible loess is effectively isolated, the pile foundation is supported, the depth of the pile foundation is greatly reduced, construction is convenient, and the method is suitable for various construction occasions.
本发明涉及土木工程技术领域，具体涉及一种用于湿陷性黄土区域消减负摩阻的半增强型非挤土桩及施工方法；包括均匀设置在桩孔的混凝土侧面的第一承载浆体，其设置于混凝土中性点以下位置，设置一组或多组；首先钻桩孔，在桩孔侧面预埋第一高压注浆管，再向桩孔内注入混凝土；桩基凝固后，第一高压注浆管进行高压注浆，使第一承载浆体成型；再对桩基上部外周侧进行环切，形成环形空腔；最后，在环形空腔内填充砂；一方面通过在桩基中性点以下位置设置第一承载浆体，加大桩基承载力；另一方面通过填充砂，不仅有效地隔离湿陷性黄土，还对桩基起到了支持的作用，大大缩减桩基的深度，施工方便，适于多种施工场合。
Semi-reinforced non-soil-squeezing pile for reducing negative friction in collapsible loess area and construction method of semi-reinforced non-soil-squeezing pile
The invention relates to the technical field of civil engineering, in particular to a semi-reinforced non-soil-squeezing pile for reducing negative friction in a collapsible loess area and a construction method. Comprising one or more groups of first bearing slurry uniformly arranged on the concrete side surface of a pile hole and arranged below the neutral point of the concrete; firstly, a pile hole is drilled, a first high-pressure grouting pipe is pre-buried in the side face of the pile hole, and then concrete is injected into the pile hole; after the pile foundation is solidified, high-pressure grouting is conducted through the first high-pressure grouting pipe, so that the first bearing slurry is formed; the peripheral side of the upper portion of the pile foundation is annularly cut, and an annular cavity is formed; and finally, the annular cavity is filled with sand. On one hand, the first bearing slurry is arranged below the neutral point of the pile foundation, and the bearing capacity of the pile foundation is increased; and on the other hand, by filling sand, collapsible loess is effectively isolated, the pile foundation is supported, the depth of the pile foundation is greatly reduced, construction is convenient, and the method is suitable for various construction occasions.
本发明涉及土木工程技术领域，具体涉及一种用于湿陷性黄土区域消减负摩阻的半增强型非挤土桩及施工方法；包括均匀设置在桩孔的混凝土侧面的第一承载浆体，其设置于混凝土中性点以下位置，设置一组或多组；首先钻桩孔，在桩孔侧面预埋第一高压注浆管，再向桩孔内注入混凝土；桩基凝固后，第一高压注浆管进行高压注浆，使第一承载浆体成型；再对桩基上部外周侧进行环切，形成环形空腔；最后，在环形空腔内填充砂；一方面通过在桩基中性点以下位置设置第一承载浆体，加大桩基承载力；另一方面通过填充砂，不仅有效地隔离湿陷性黄土，还对桩基起到了支持的作用，大大缩减桩基的深度，施工方便，适于多种施工场合。
Semi-reinforced non-soil-squeezing pile for reducing negative friction in collapsible loess area and construction method of semi-reinforced non-soil-squeezing pile
一种用于湿陷性黄土区域消减负摩阻的半增强型非挤土桩及施工方法
ZHANG ZHAOJI (Autor:in) / WANG ZHIZHONG (Autor:in) / LI LEI (Autor:in) / TONG HAOXIN (Autor:in) / SUN XUANKE (Autor:in) / FAN HAOHUA (Autor:in) / LIANG JIANXUN (Autor:in) / WEI JINGHE (Autor:in)
16.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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