Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Jet grouting pile for in-pit composite water stop and curtain construction method
The invention relates to the technical field of buildings, and discloses a jet grouting pile for in-pit composite water stop and a curtain construction method. The jet grouting pile comprises a rock-soil layer. According to the jet grouting pile for in-pit composite water stop and the curtain construction method, the upper part, matched with a sleeve, of a pressing plate and the outer surface, facing the inner hole wall of the rock-soil layer are arranged to be the inclined face, so that when a grouting pipe and the sleeve are drilled downwards, the bottom of the pressing plate is pressed, and a compression spring shrinks; and when holes are punched and grouting is required, the grouting pipe and the sleeve are firstly lifted, the pressure of the spring is released, the pressing plate stretches out, grout sprayed out of the bottom end of the grouting pipe can enter a separation cavity of the grouting pipe and the sleeve, in the ascending process of the grouting pipe and the sleeve, the bottom of an inner hole of the rock-soil layer is filled with the grout, soil blocks in the sleeve are not prone to being discharged, the soil blocks are blocked by a baffle, the pressure is increased, the pressing plate is inclined outwards under internal pressure, a gap between the sleeve and the inner hole of the rock-soil layer is sealed, and grout is prevented from rising through the gap under the action of the pressure.
本发明涉及建筑技术领域，且公开了一种用于坑内复合止水的旋喷桩及帷幕施工方法，包括岩土层。该用于坑内复合止水的旋喷桩及帷幕施工方法，通过压紧板与套管配合的上部分，且朝向岩土层内孔壁的外表面设置为斜面，使得注浆管与套管在向下钻孔时，压紧板的底部受到压力，压缩弹簧收缩，当孔打完需要进行注浆时，注浆管与套管首先抬起，弹簧的压力释放，压紧板伸出，在注浆管底端喷出的浆液会进入到注浆管与套管的隔腔中，在注浆管与套管的上升过程中，由于岩土层内孔底部被浆液填充，套管内土块不易的排出，被挡板挡柱，压力增大，压紧板受到内部的压力，会向外倾斜，将套管与岩土层内孔之间的缝隙封闭，防止浆液在压力作用下通过缝隙上升。
Jet grouting pile for in-pit composite water stop and curtain construction method
The invention relates to the technical field of buildings, and discloses a jet grouting pile for in-pit composite water stop and a curtain construction method. The jet grouting pile comprises a rock-soil layer. According to the jet grouting pile for in-pit composite water stop and the curtain construction method, the upper part, matched with a sleeve, of a pressing plate and the outer surface, facing the inner hole wall of the rock-soil layer are arranged to be the inclined face, so that when a grouting pipe and the sleeve are drilled downwards, the bottom of the pressing plate is pressed, and a compression spring shrinks; and when holes are punched and grouting is required, the grouting pipe and the sleeve are firstly lifted, the pressure of the spring is released, the pressing plate stretches out, grout sprayed out of the bottom end of the grouting pipe can enter a separation cavity of the grouting pipe and the sleeve, in the ascending process of the grouting pipe and the sleeve, the bottom of an inner hole of the rock-soil layer is filled with the grout, soil blocks in the sleeve are not prone to being discharged, the soil blocks are blocked by a baffle, the pressure is increased, the pressing plate is inclined outwards under internal pressure, a gap between the sleeve and the inner hole of the rock-soil layer is sealed, and grout is prevented from rising through the gap under the action of the pressure.
本发明涉及建筑技术领域，且公开了一种用于坑内复合止水的旋喷桩及帷幕施工方法，包括岩土层。该用于坑内复合止水的旋喷桩及帷幕施工方法，通过压紧板与套管配合的上部分，且朝向岩土层内孔壁的外表面设置为斜面，使得注浆管与套管在向下钻孔时，压紧板的底部受到压力，压缩弹簧收缩，当孔打完需要进行注浆时，注浆管与套管首先抬起，弹簧的压力释放，压紧板伸出，在注浆管底端喷出的浆液会进入到注浆管与套管的隔腔中，在注浆管与套管的上升过程中，由于岩土层内孔底部被浆液填充，套管内土块不易的排出，被挡板挡柱，压力增大，压紧板受到内部的压力，会向外倾斜，将套管与岩土层内孔之间的缝隙封闭，防止浆液在压力作用下通过缝隙上升。
Jet grouting pile for in-pit composite water stop and curtain construction method
一种用于坑内复合止水的旋喷桩及帷幕施工方法
LI LIANGHUI (Autor:in) / CAO XIAOPIN (Autor:in) / LIU ZHENG (Autor:in) / WANG SONG (Autor:in) / FANG LIANG (Autor:in)
16.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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