A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dam foundation grouting construction method
The invention discloses a dam foundation grouting construction method. The dam foundation grouting construction method particularly comprises the steps that 1, drilling positioning is conducted, grouting holes are measured and positioned on a construction face according to a design drawing and numbered in a unified mode; 2, drilling is conducted, drilling is conducted according to a serial number,and recording needs to be conducted in the drilling process for reference of grouting operation; 3, a grouting pipe is pre-buried, and the pre-buried grouting pipe is positioned in an outer rock-soillayer to be grouted and constructed; 4, hole washing is conducted, after the pre-buried grouting pipe is positioned, the section is washed, and during the hole washing, a method that large-flow waterflow is introduced through a guide pipe, and washing is conducted from the bottom of the hole to the outside of the hole is adopted; 5, pipe feeding is conducted; 6, hole sealing is conducted; 7, grouting is conducted in a floral tube sectional mode, the grouting length of each section is called as a grouting step pitch, and the length of the floral tube is a grouting step pitch length; and 8, pipe retracting is conducted. According to the dam foundation grouting construction method, sediments are cleaned up, grouting is compact, grouting quality is good, and the construction method is simpleand effective, and the construction cost is low.
本发明公开一种坝基注浆施工工法，具体包括：步骤一：钻孔定位，根据设计图纸注浆孔在施工面上进行测量定位并统一编号；步骤二：钻孔，按照编号进行钻孔，在钻孔过程中要做好记录，以供注浆作业参考；步骤三：预埋注浆管，将预埋注浆管定位在待注浆施工的外岩土层内；步骤四：洗孔，当将预埋注浆管定位好后对该段进行冲洗，洗孔时采用导管通入大流量水流，从孔底向孔外冲洗的方法进行；步骤五：下管；步骤六：封孔；步骤七：注浆采用花管分段式注浆，每段注浆长度称为注浆步距，花管长度为注浆步距长度；步骤八：收管，本施工工法沉渣清洗干净、注浆密实，注浆质量好，且施工方法简单有效、施工成本低廉。
Dam foundation grouting construction method
The invention discloses a dam foundation grouting construction method. The dam foundation grouting construction method particularly comprises the steps that 1, drilling positioning is conducted, grouting holes are measured and positioned on a construction face according to a design drawing and numbered in a unified mode; 2, drilling is conducted, drilling is conducted according to a serial number,and recording needs to be conducted in the drilling process for reference of grouting operation; 3, a grouting pipe is pre-buried, and the pre-buried grouting pipe is positioned in an outer rock-soillayer to be grouted and constructed; 4, hole washing is conducted, after the pre-buried grouting pipe is positioned, the section is washed, and during the hole washing, a method that large-flow waterflow is introduced through a guide pipe, and washing is conducted from the bottom of the hole to the outside of the hole is adopted; 5, pipe feeding is conducted; 6, hole sealing is conducted; 7, grouting is conducted in a floral tube sectional mode, the grouting length of each section is called as a grouting step pitch, and the length of the floral tube is a grouting step pitch length; and 8, pipe retracting is conducted. According to the dam foundation grouting construction method, sediments are cleaned up, grouting is compact, grouting quality is good, and the construction method is simpleand effective, and the construction cost is low.
本发明公开一种坝基注浆施工工法，具体包括：步骤一：钻孔定位，根据设计图纸注浆孔在施工面上进行测量定位并统一编号；步骤二：钻孔，按照编号进行钻孔，在钻孔过程中要做好记录，以供注浆作业参考；步骤三：预埋注浆管，将预埋注浆管定位在待注浆施工的外岩土层内；步骤四：洗孔，当将预埋注浆管定位好后对该段进行冲洗，洗孔时采用导管通入大流量水流，从孔底向孔外冲洗的方法进行；步骤五：下管；步骤六：封孔；步骤七：注浆采用花管分段式注浆，每段注浆长度称为注浆步距，花管长度为注浆步距长度；步骤八：收管，本施工工法沉渣清洗干净、注浆密实，注浆质量好，且施工方法简单有效、施工成本低廉。
Dam foundation grouting construction method
一种坝基注浆施工工法
WANG XIANGPENG (author) / LIU WEI (author) / ZHANG XIANG (author) / HE DINGQIAO (author) / JIAO JUNJIE (author) / CHENG RUIHONG (author) / ZHAO CHONGFU (author)
2021-03-19
Patent
Electronic Resource
Chinese
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