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A platform for research: civil engineering, architecture and urbanism
Pile bottom sediment treatment method for cast-in-place concrete pile
The invention is applicable to the technical field of pile bottom sediment of cast-in-place piles, and provides a pile bottom sediment treatment method of a concrete cast-in-place pile, which comprises the following steps: construction preparation; arranging drill holes; performing high-pressure jet grouting cutting; burying an orifice pipe; and grouting and grouting for hole sealing. According to the method, high-pressure rotary spraying (fixed spraying) cutting is conducted on the defect portion of the pile bottom through high-pressure water, sediment at the pile bottom is cut off, particulate matter is cleaned out of the pile through a slag returning method, then cement paste is prepared through high-grade cement, a grouting pipe is put down to the bottom of the pile for reverse grouting, thick slurry is injected through another hole position, and the pile bottom is subjected to grouting. And the clear water in the cavity of the pile bottom is replaced, and then the cavity of the pile bottom is tightly connected with a concrete body and a bearing layer through an orifice grouting method, so that the purpose of treating the defects of the pile bottom is achieved.
本发明适用于灌注桩的桩底沉渣技术领域，提供了一种混凝土灌注桩的桩底沉渣处理方法，包括以下步骤：施工准备；钻孔布置；高压旋喷切割；孔口管埋设；注浆以及压浆封孔。本发明采用高压水对桩底缺陷部位进行高压旋喷（定喷）切割，使其桩底沉渣物被削落，并通过返渣的方法将颗粒物清洗出桩外，然后采用高标号水泥配制水泥浆，下入注浆管到桩底部进行反向注浆，并通过另一个孔位注入浓浆，替换出桩底空腔里的清水，再通过孔口压浆的方法使其与砼体及持力层紧密连接，从而达到处理桩底缺陷的目的。
Pile bottom sediment treatment method for cast-in-place concrete pile
The invention is applicable to the technical field of pile bottom sediment of cast-in-place piles, and provides a pile bottom sediment treatment method of a concrete cast-in-place pile, which comprises the following steps: construction preparation; arranging drill holes; performing high-pressure jet grouting cutting; burying an orifice pipe; and grouting and grouting for hole sealing. According to the method, high-pressure rotary spraying (fixed spraying) cutting is conducted on the defect portion of the pile bottom through high-pressure water, sediment at the pile bottom is cut off, particulate matter is cleaned out of the pile through a slag returning method, then cement paste is prepared through high-grade cement, a grouting pipe is put down to the bottom of the pile for reverse grouting, thick slurry is injected through another hole position, and the pile bottom is subjected to grouting. And the clear water in the cavity of the pile bottom is replaced, and then the cavity of the pile bottom is tightly connected with a concrete body and a bearing layer through an orifice grouting method, so that the purpose of treating the defects of the pile bottom is achieved.
本发明适用于灌注桩的桩底沉渣技术领域，提供了一种混凝土灌注桩的桩底沉渣处理方法，包括以下步骤：施工准备；钻孔布置；高压旋喷切割；孔口管埋设；注浆以及压浆封孔。本发明采用高压水对桩底缺陷部位进行高压旋喷（定喷）切割，使其桩底沉渣物被削落，并通过返渣的方法将颗粒物清洗出桩外，然后采用高标号水泥配制水泥浆，下入注浆管到桩底部进行反向注浆，并通过另一个孔位注入浓浆，替换出桩底空腔里的清水，再通过孔口压浆的方法使其与砼体及持力层紧密连接，从而达到处理桩底缺陷的目的。
Pile bottom sediment treatment method for cast-in-place concrete pile
一种混凝土灌注桩的桩底沉渣处理方法
LUO BOQING (author)
2023-04-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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