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A platform for research: civil engineering, architecture and urbanism
Semi-cutting construction method for diaphragm wall
The invention relates to an underground diaphragm wall half-cutting construction method which is used for cutting a local wall body on the inner side of an enclosure type underground diaphragm wall and comprises the following steps: S1, forming a grouting hole c in a set position on the outer side of the underground diaphragm wall, and grouting into a soil body on the outer side of the underground diaphragm wall through the grouting hole c to reinforce the soil body; s2, transverse continuous drilling is conducted on the bottom, corresponding to the to-be-cut local wall body, of the inner side of the diaphragm wall through a water drill, and a layer hole groove e with the depth equal to the thickness of the to-be-cut local wall body is formed; s3, longitudinal continuous drilling is conducted on the two sides, corresponding to the local wall to be cut, of the top of the diaphragm wall through a water drill; according to the method, the soil body on the outer side of the diaphragm wall in the to-be-cut area is reinforced in an alternate grouting mode, and during local cutting operation of the diaphragm wall in the cut area, the soil body on the outer side of the diaphragm wall cannot generate large pressure on the diaphragm wall, so that the supporting stability of the wall body before and after semi-cutting operation of the diaphragm wall is improved, and the service life of the diaphragm wall is prolonged. And the safety of the semi-cutting operation of the diaphragm wall is ensured.
本发明涉及一种地连墙半切割施工方法，用于围护式地连墙内侧局部墙体的切割，包括如下步骤：S1、在地连墙外侧设定位置开设注浆孔c，并通过注浆孔c向地连墙外侧土体内注浆进行土体的加固；S2、在地连墙内侧对应待切割局部墙体的底部使用水钻进行横向连续钻孔，形成深度与待切割局部墙体厚度相同的层孔槽e；S3、在地连墙顶部对应待切割局部墙体的两侧分别使用水钻进行纵向连续钻孔；本申请通过采用交替注浆的形式加固待切割区域地连墙外侧的土体，随后进行切割区域地连墙局部切除作业时，地连墙外侧土体不会对地连墙产生较大的压力，以此来增加地连墙半切割作业前后墙体的支撑稳定性，并保障了地连墙半切割作业的安全性。
Semi-cutting construction method for diaphragm wall
The invention relates to an underground diaphragm wall half-cutting construction method which is used for cutting a local wall body on the inner side of an enclosure type underground diaphragm wall and comprises the following steps: S1, forming a grouting hole c in a set position on the outer side of the underground diaphragm wall, and grouting into a soil body on the outer side of the underground diaphragm wall through the grouting hole c to reinforce the soil body; s2, transverse continuous drilling is conducted on the bottom, corresponding to the to-be-cut local wall body, of the inner side of the diaphragm wall through a water drill, and a layer hole groove e with the depth equal to the thickness of the to-be-cut local wall body is formed; s3, longitudinal continuous drilling is conducted on the two sides, corresponding to the local wall to be cut, of the top of the diaphragm wall through a water drill; according to the method, the soil body on the outer side of the diaphragm wall in the to-be-cut area is reinforced in an alternate grouting mode, and during local cutting operation of the diaphragm wall in the cut area, the soil body on the outer side of the diaphragm wall cannot generate large pressure on the diaphragm wall, so that the supporting stability of the wall body before and after semi-cutting operation of the diaphragm wall is improved, and the service life of the diaphragm wall is prolonged. And the safety of the semi-cutting operation of the diaphragm wall is ensured.
本发明涉及一种地连墙半切割施工方法，用于围护式地连墙内侧局部墙体的切割，包括如下步骤：S1、在地连墙外侧设定位置开设注浆孔c，并通过注浆孔c向地连墙外侧土体内注浆进行土体的加固；S2、在地连墙内侧对应待切割局部墙体的底部使用水钻进行横向连续钻孔，形成深度与待切割局部墙体厚度相同的层孔槽e；S3、在地连墙顶部对应待切割局部墙体的两侧分别使用水钻进行纵向连续钻孔；本申请通过采用交替注浆的形式加固待切割区域地连墙外侧的土体，随后进行切割区域地连墙局部切除作业时，地连墙外侧土体不会对地连墙产生较大的压力，以此来增加地连墙半切割作业前后墙体的支撑稳定性，并保障了地连墙半切割作业的安全性。
Semi-cutting construction method for diaphragm wall
地连墙半切割施工方法
HE JUN (author) / NI JIAN (author) / LI GUANG (author) / JIANG SHUAI (author) / HU XIANGGANG (author) / WANG XIUPU (author) / CHAI XIAOMING (author) / NI CHEN (author)
2025-01-03
Patent
Electronic Resource
Chinese
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