Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Leaking stoppage structure and construction method of SMW pile wall for gravel stratums
The invention discloses a leaking stoppage structure and construction method of a SMW pile wall for gravel stratums. The structure comprises an SMW pile and grouting steel pipes; the SMW pile is composed of multiple pieces of parallel H-shaped steel and a cement soil mixing pile; and the two grouting steel pipes are welded to the flanges of the H-shaped steel in the length direction of the H-shaped steel, so that double-pipe synchronous grouting is achieved. The method comprises the steps that a plurality of grout overflow holes are formed in the lower middle portions of the grouting steel pipes in advance, the two grouting steel pipes are welded to the flanges of the H-shaped steel, the H-shaped steel with the grouting steel pipes is inserted into the cement soil mixing pile along positioning clamps, double-pipe double-liquid synchronous grouting is conducted, and the H-shaped steel and the grouting steel pipes are pulled out when the strength of a pile body reaches the design strength. According to the method, the two grouting steel pipes are used for injecting water glass and cement grout respectively to conduct anti-seepage and leaking stoppage on the SMW pile, cracks in the SMW pile and holes between the gravel stratums can be rapidly filled, and the water stopping effect of the SMW pile wall is enhanced.
一种用于砾石地层SMW工法桩墙堵漏结构及方法，所述结构包括SMW工法桩和注浆钢管；SMW工法桩由多根相互平行的H型钢和水泥土搅拌桩构成；两根注浆钢管沿H型钢的长度方向焊接在H型钢的翼缘上，实现双管同步注浆。所述方法包括在注浆钢管的中下部预置多个溢浆孔、两根注浆钢管焊接至H型钢的翼缘上、将带有注浆钢管的H型钢沿定位卡插入水泥土搅拌桩、进行双管双液同步注浆、桩体达到设计强度时对H型钢与注浆钢管拔除、桩体达到设计强度时，进行H型钢与注浆钢管的拔除。本发明利用两根注浆钢管分别注入水玻璃与水泥浆液对SMW工法桩进行防渗堵漏，能够快速填充SMW工法桩内的裂隙与砾石地层间的孔隙，增强了SMW工法桩墙的止水效果。
Leaking stoppage structure and construction method of SMW pile wall for gravel stratums
The invention discloses a leaking stoppage structure and construction method of a SMW pile wall for gravel stratums. The structure comprises an SMW pile and grouting steel pipes; the SMW pile is composed of multiple pieces of parallel H-shaped steel and a cement soil mixing pile; and the two grouting steel pipes are welded to the flanges of the H-shaped steel in the length direction of the H-shaped steel, so that double-pipe synchronous grouting is achieved. The method comprises the steps that a plurality of grout overflow holes are formed in the lower middle portions of the grouting steel pipes in advance, the two grouting steel pipes are welded to the flanges of the H-shaped steel, the H-shaped steel with the grouting steel pipes is inserted into the cement soil mixing pile along positioning clamps, double-pipe double-liquid synchronous grouting is conducted, and the H-shaped steel and the grouting steel pipes are pulled out when the strength of a pile body reaches the design strength. According to the method, the two grouting steel pipes are used for injecting water glass and cement grout respectively to conduct anti-seepage and leaking stoppage on the SMW pile, cracks in the SMW pile and holes between the gravel stratums can be rapidly filled, and the water stopping effect of the SMW pile wall is enhanced.
一种用于砾石地层SMW工法桩墙堵漏结构及方法，所述结构包括SMW工法桩和注浆钢管；SMW工法桩由多根相互平行的H型钢和水泥土搅拌桩构成；两根注浆钢管沿H型钢的长度方向焊接在H型钢的翼缘上，实现双管同步注浆。所述方法包括在注浆钢管的中下部预置多个溢浆孔、两根注浆钢管焊接至H型钢的翼缘上、将带有注浆钢管的H型钢沿定位卡插入水泥土搅拌桩、进行双管双液同步注浆、桩体达到设计强度时对H型钢与注浆钢管拔除、桩体达到设计强度时，进行H型钢与注浆钢管的拔除。本发明利用两根注浆钢管分别注入水玻璃与水泥浆液对SMW工法桩进行防渗堵漏，能够快速填充SMW工法桩内的裂隙与砾石地层间的孔隙，增强了SMW工法桩墙的止水效果。
Leaking stoppage structure and construction method of SMW pile wall for gravel stratums
一种用于砾石地层SMW工法桩墙堵漏结构及施工方法
JIANG YALONG (Autor:in) / XU ZHENZHEN (Autor:in) / XU CHANGJIE (Autor:in) / ZHU BITANG (Autor:in)
06.07.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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