Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel casing pre-reinforcement high-pressure jet grouting curtain grouting construction method
The invention relates to the technical field of building construction, in particular to a steel casing pre-reinforcement high-pressure jet grouting curtain grouting construction method which comprises the following steps: S1, leveling a site, and burying a steel casing; s2, installing a guide steel pipe; s3, drilling is conducted, and hole forming detection is conducted; s4, stirring and pulping; s5, high-pressure rotary jet grouting curtain grouting is conducted, specifically, the length of a jet pipe is measured firstly, whether the center line of a nozzle is consistent with the direction of the jet pipe or not is measured, then the jet pipe is lowered, water jetting and pipe inserting are conducted at the same time, then gas and cement slurry meeting the design requirement is jetted in through the jet pipe, and lifting is started after the slurry returns out of an orifice to be normal; s6, filling and grouting; s7, a reinforcement cage is installed; s8, hole cleaning; s9, sediment detection; and S10, concrete is poured. The influence of hole collapse, slurry leakage or underground river seepage and the like caused by karst caves in the pile foundation hole forming process is dealt with through a steel casing pre-reinforcement high-pressure jet grouting curtain grouting method, the construction period can be effectively shortened, the manufacturing cost is saved, and the pile forming quality is ensured.
本发明涉及建筑施工技术领域，具体涉及一种钢护筒预加固高压旋喷帷幕注浆施工工法，包括如下步骤：S1：平整场地、埋设钢护筒；S2：安装导向钢管；S3：钻孔并进行成孔检测；S4：搅拌制浆；S5：高压旋喷帷幕注浆，先测量喷射管长度、测量喷嘴中心线是否与喷射管方向一致，再下喷射管，边射水、边插管，再通过喷射管喷射入符合设计要求的气和水泥浆，待浆液返出孔口正常后，开始提升；S6：充填灌浆；S7：安装钢筋笼；S8：清孔；S9：沉渣检测；S10：灌注混凝土。本发明中采用钢护筒预加固高压旋喷帷幕注浆法来应对桩基础成孔过程中溶洞带来的塌孔、漏浆或地下暗河渗流等的影响，可有效地加快施工工期、节省造价成本，确保成桩质量。
Steel casing pre-reinforcement high-pressure jet grouting curtain grouting construction method
The invention relates to the technical field of building construction, in particular to a steel casing pre-reinforcement high-pressure jet grouting curtain grouting construction method which comprises the following steps: S1, leveling a site, and burying a steel casing; s2, installing a guide steel pipe; s3, drilling is conducted, and hole forming detection is conducted; s4, stirring and pulping; s5, high-pressure rotary jet grouting curtain grouting is conducted, specifically, the length of a jet pipe is measured firstly, whether the center line of a nozzle is consistent with the direction of the jet pipe or not is measured, then the jet pipe is lowered, water jetting and pipe inserting are conducted at the same time, then gas and cement slurry meeting the design requirement is jetted in through the jet pipe, and lifting is started after the slurry returns out of an orifice to be normal; s6, filling and grouting; s7, a reinforcement cage is installed; s8, hole cleaning; s9, sediment detection; and S10, concrete is poured. The influence of hole collapse, slurry leakage or underground river seepage and the like caused by karst caves in the pile foundation hole forming process is dealt with through a steel casing pre-reinforcement high-pressure jet grouting curtain grouting method, the construction period can be effectively shortened, the manufacturing cost is saved, and the pile forming quality is ensured.
本发明涉及建筑施工技术领域，具体涉及一种钢护筒预加固高压旋喷帷幕注浆施工工法，包括如下步骤：S1：平整场地、埋设钢护筒；S2：安装导向钢管；S3：钻孔并进行成孔检测；S4：搅拌制浆；S5：高压旋喷帷幕注浆，先测量喷射管长度、测量喷嘴中心线是否与喷射管方向一致，再下喷射管，边射水、边插管，再通过喷射管喷射入符合设计要求的气和水泥浆，待浆液返出孔口正常后，开始提升；S6：充填灌浆；S7：安装钢筋笼；S8：清孔；S9：沉渣检测；S10：灌注混凝土。本发明中采用钢护筒预加固高压旋喷帷幕注浆法来应对桩基础成孔过程中溶洞带来的塌孔、漏浆或地下暗河渗流等的影响，可有效地加快施工工期、节省造价成本，确保成桩质量。
Steel casing pre-reinforcement high-pressure jet grouting curtain grouting construction method
一种钢护筒预加固高压旋喷帷幕注浆施工工法
TANG SHILU (Autor:in) / LIAO YUNPENG (Autor:in) / DAI RONG (Autor:in) / DENG YANG (Autor:in) / FENG ZHISHENG (Autor:in) / LI LIANGYONG (Autor:in) / WANG ZHIJIA (Autor:in) / DUAN SHUSU (Autor:in) / XU HONGQING (Autor:in) / ZHANG JIANJING (Autor:in)
26.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
High-pressure jet grouting pile waterproof curtain construction method
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