A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Negative pressure grouting construction process for fractured stratum
The invention provides a negative pressure grouting construction process for fractured stratum.The negative pressure grouting construction process comprises the following steps that the distribution range of a curtain wall is determined, the two sides of the distribution range are each provided with at least one column of grouting hole set, and each column of grouting hole set comprises a plurality of grouting holes distributed in the extending direction of the distribution range; three adjacent grouting holes distributed in a triangular shape are defined as grouting units, and negative pressure holes are formed in the outer centers of the grouting units; the multiple grouting holes are filled with prefabricated grout; and pumping air in the negative pressure hole to form a negative pressure environment until seeping slurry appears in the negative pressure hole. According to the negative pressure grouting construction technology for the fractured stratum, when grouting is conducted from the grouting holes, the negative pressure holes pump liquid outwards, diffusion of grout is guided through the negative pressure effect of the negative pressure holes, and the situation that the grout is diffused around the grouting holes at will is avoided.
本发明提供了一种用于破碎地层的负压注浆施工工艺，包括如下步骤：确定帷幕幕墙的分布范围，在所述分布范围的两侧分别设置至少一列注浆孔组，每列所述注浆孔组均包含多个沿所述分布范围的延伸方向分布的注浆孔；定义相邻且呈三角形分布的三个所述注浆孔为注浆单元，在所述注浆单元的外心设置负压孔；在多个所述注浆孔内均灌满预制浆液；使所述负压孔内抽气形成负压环境，直至所述负压孔内出现渗出浆液。本发明提供的用于破碎地层的负压注浆施工工艺，从注浆孔进行注浆时，负压孔向外抽液体，通过负压孔的负压效果，引导浆液的扩散，避免了浆液在注浆孔四周随意扩散。
Negative pressure grouting construction process for fractured stratum
The invention provides a negative pressure grouting construction process for fractured stratum.The negative pressure grouting construction process comprises the following steps that the distribution range of a curtain wall is determined, the two sides of the distribution range are each provided with at least one column of grouting hole set, and each column of grouting hole set comprises a plurality of grouting holes distributed in the extending direction of the distribution range; three adjacent grouting holes distributed in a triangular shape are defined as grouting units, and negative pressure holes are formed in the outer centers of the grouting units; the multiple grouting holes are filled with prefabricated grout; and pumping air in the negative pressure hole to form a negative pressure environment until seeping slurry appears in the negative pressure hole. According to the negative pressure grouting construction technology for the fractured stratum, when grouting is conducted from the grouting holes, the negative pressure holes pump liquid outwards, diffusion of grout is guided through the negative pressure effect of the negative pressure holes, and the situation that the grout is diffused around the grouting holes at will is avoided.
本发明提供了一种用于破碎地层的负压注浆施工工艺，包括如下步骤：确定帷幕幕墙的分布范围，在所述分布范围的两侧分别设置至少一列注浆孔组，每列所述注浆孔组均包含多个沿所述分布范围的延伸方向分布的注浆孔；定义相邻且呈三角形分布的三个所述注浆孔为注浆单元，在所述注浆单元的外心设置负压孔；在多个所述注浆孔内均灌满预制浆液；使所述负压孔内抽气形成负压环境，直至所述负压孔内出现渗出浆液。本发明提供的用于破碎地层的负压注浆施工工艺，从注浆孔进行注浆时，负压孔向外抽液体，通过负压孔的负压效果，引导浆液的扩散，避免了浆液在注浆孔四周随意扩散。
Negative pressure grouting construction process for fractured stratum
用于破碎地层的负压注浆施工工艺
YUAN SHENGCHAO (author) / LIU DAJIN (author) / XUE XIAOFENG (author) / YU ZHONGXIN (author) / ZHOU BING (author) / LIU ZHIXIAN (author) / HU JIAN (author) / HAN GUILEI (author) / WANG ZHIQI (author) / WANG YUN (author)
2023-01-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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