Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cast-in-place pile bottom sediment multi-medium high-pressure hole washing and slurry closed grouting repairing method
The invention relates to the technical field of cast-in-place pile repairing, and discloses a cast-in-place pile bottom sediment multi-medium high-pressure hole washing and slurry closed grouting repairing method which comprises the following construction steps that (1) an air compressor is started for high-air-pressure hole washing; (2) an air compressor and a grouting pump are started respectively for high-air-pressure and high-water-pressure mixed hole washing; (3) the grouting pump injects cement grout into the core-pulling hole, the grouting pump is replaced with an air compressor, and the air compressor conveys highly compressed air into the core-pulling hole; (4) the air compressor is replaced with the grouting pump, and the cement grout is injected into the core-pulling hole; and (5) hole sealing and grouting are conducted on the core-pulling hole through the expansion hole packer. The core-pulling hole is used as a channel, sediment at the bottom of the pile is cleaned through mixed hole washing of single media such as water, gas and slurry and multi-media, and the sediment section at the bottom of the pile, the interior of the core-pulling hole, the interior of a pile body and slightly-weathered rock cracks are densely filled with cement slurry through high-pressure closed grouting, so that the effect of repairing the pile with the sediment defect is achieved.
本发明涉及灌注桩修复的技术领域，公开了灌注桩底沉渣多介质高压洗孔与浆液封闭注浆修复方法，包括以下施工步骤：1)、启动空压机进行高风压洗孔；2)、分别启动空压机以及注浆泵进行高风压和高水压混合洗孔；3)、注浆泵往抽芯孔内注入水泥浆液，将注浆泵更换为空压机，空压机往抽芯孔内输送高压缩空气，4)、再将空压机更换为注浆泵，往抽芯孔内注入水泥浆液，5)、通过膨胀封孔器将抽芯孔进行封孔注浆；利用抽芯孔作为通道，通过水、气、浆等单介质和多介质混合洗孔，将桩底沉渣清洗干净，并通过高压封闭注浆，使桩底沉渣段、抽芯孔内及桩身中、微风化岩裂隙被水泥浆液填充密实，从而达到对沉渣缺陷桩修复的效果。
Cast-in-place pile bottom sediment multi-medium high-pressure hole washing and slurry closed grouting repairing method
The invention relates to the technical field of cast-in-place pile repairing, and discloses a cast-in-place pile bottom sediment multi-medium high-pressure hole washing and slurry closed grouting repairing method which comprises the following construction steps that (1) an air compressor is started for high-air-pressure hole washing; (2) an air compressor and a grouting pump are started respectively for high-air-pressure and high-water-pressure mixed hole washing; (3) the grouting pump injects cement grout into the core-pulling hole, the grouting pump is replaced with an air compressor, and the air compressor conveys highly compressed air into the core-pulling hole; (4) the air compressor is replaced with the grouting pump, and the cement grout is injected into the core-pulling hole; and (5) hole sealing and grouting are conducted on the core-pulling hole through the expansion hole packer. The core-pulling hole is used as a channel, sediment at the bottom of the pile is cleaned through mixed hole washing of single media such as water, gas and slurry and multi-media, and the sediment section at the bottom of the pile, the interior of the core-pulling hole, the interior of a pile body and slightly-weathered rock cracks are densely filled with cement slurry through high-pressure closed grouting, so that the effect of repairing the pile with the sediment defect is achieved.
本发明涉及灌注桩修复的技术领域，公开了灌注桩底沉渣多介质高压洗孔与浆液封闭注浆修复方法，包括以下施工步骤：1)、启动空压机进行高风压洗孔；2)、分别启动空压机以及注浆泵进行高风压和高水压混合洗孔；3)、注浆泵往抽芯孔内注入水泥浆液，将注浆泵更换为空压机，空压机往抽芯孔内输送高压缩空气，4)、再将空压机更换为注浆泵，往抽芯孔内注入水泥浆液，5)、通过膨胀封孔器将抽芯孔进行封孔注浆；利用抽芯孔作为通道，通过水、气、浆等单介质和多介质混合洗孔，将桩底沉渣清洗干净，并通过高压封闭注浆，使桩底沉渣段、抽芯孔内及桩身中、微风化岩裂隙被水泥浆液填充密实，从而达到对沉渣缺陷桩修复的效果。
Cast-in-place pile bottom sediment multi-medium high-pressure hole washing and slurry closed grouting repairing method
灌注桩底沉渣多介质高压洗孔与浆液封闭注浆修复方法
LI JIHONG (Autor:in) / FENG DONGDONG (Autor:in) / LEI BIN (Autor:in) / LI SHUQING (Autor:in) / WANG GUANGHUI (Autor:in) / LONG YAN (Autor:in) / DENG YIXIN (Autor:in) / ZHOU XINGHAI (Autor:in) / ZHANG CHENGWU (Autor:in) / XU CHAO (Autor:in)
04.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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