Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rock mass fracture negative pressure grouting reinforcement equipment
The invention provides a rock mass fracture negative pressure grouting reinforcement method and equipment, and the method comprises the following steps: spraying a concrete layer on the surface of a reinforced rock mass to form a relatively closed area with a certain area; a plurality of injection holes and a plurality of negative pressure holes are pre-drilled in the closed area, and a preset distance is kept between the injection holes and the negative pressure holes; connecting a negative pressure source at the negative pressure hole, generating a negative pressure difference between the injection hole and the negative pressure hole at the back of the crack, and gradually increasing the negative pressure of the negative pressure hole until the pressure difference is stable; cement slurry is pressed into a rock mass fracture area to be reinforced through the injection hole with wind pressure power, and flowing of the cement slurry in rock mass fractures is promoted by increasing the negative pressure of the negative pressure opening. The negative pressure hole is observed, negative pressure is closed when grout seeps out of the negative pressure hole, the negative pressure hole is closed immediately, cement paste is continuously injected till the grouting pressure reaches the designed grouting pressure, and grouting is completed. The technical scheme provided by the invention has the advantage of improving the mechanical property of the rock mass.
本申请提供一种岩体裂隙负压注浆加固方法及设备，所述方法包括如下步骤：对加固岩体表面喷射混凝土层，形成一定面积的相对封闭区域；在封闭区域内预钻多个注入孔和多个负压孔，注入孔与负压孔的间距保持预设距离；在负压孔处接通负压源，产生裂隙背部产生注入孔和负压孔之间的负压差，逐渐提高负压孔的负压直到压力差稳定；将水泥浆液通过注入孔，以风压动力，压入到待加固岩体裂隙区域，通过提高负压口负压促进水泥浆在岩体裂隙中的流动；观察负压孔，待负压孔中有浆液渗出时关闭负压并立刻将该负压孔封闭，持续注入水泥浆直至注浆压力达到设计注浆压力时，完成注浆。本申请提供的技术方案具有提高岩体力学性能的优点。
Rock mass fracture negative pressure grouting reinforcement equipment
The invention provides a rock mass fracture negative pressure grouting reinforcement method and equipment, and the method comprises the following steps: spraying a concrete layer on the surface of a reinforced rock mass to form a relatively closed area with a certain area; a plurality of injection holes and a plurality of negative pressure holes are pre-drilled in the closed area, and a preset distance is kept between the injection holes and the negative pressure holes; connecting a negative pressure source at the negative pressure hole, generating a negative pressure difference between the injection hole and the negative pressure hole at the back of the crack, and gradually increasing the negative pressure of the negative pressure hole until the pressure difference is stable; cement slurry is pressed into a rock mass fracture area to be reinforced through the injection hole with wind pressure power, and flowing of the cement slurry in rock mass fractures is promoted by increasing the negative pressure of the negative pressure opening. The negative pressure hole is observed, negative pressure is closed when grout seeps out of the negative pressure hole, the negative pressure hole is closed immediately, cement paste is continuously injected till the grouting pressure reaches the designed grouting pressure, and grouting is completed. The technical scheme provided by the invention has the advantage of improving the mechanical property of the rock mass.
本申请提供一种岩体裂隙负压注浆加固方法及设备，所述方法包括如下步骤：对加固岩体表面喷射混凝土层，形成一定面积的相对封闭区域；在封闭区域内预钻多个注入孔和多个负压孔，注入孔与负压孔的间距保持预设距离；在负压孔处接通负压源，产生裂隙背部产生注入孔和负压孔之间的负压差，逐渐提高负压孔的负压直到压力差稳定；将水泥浆液通过注入孔，以风压动力，压入到待加固岩体裂隙区域，通过提高负压口负压促进水泥浆在岩体裂隙中的流动；观察负压孔，待负压孔中有浆液渗出时关闭负压并立刻将该负压孔封闭，持续注入水泥浆直至注浆压力达到设计注浆压力时，完成注浆。本申请提供的技术方案具有提高岩体力学性能的优点。
Rock mass fracture negative pressure grouting reinforcement equipment
一种岩体裂隙负压注浆加固设备
LU HAIFENG (Autor:in) / HE ZE'AO (Autor:in) / KONG XIAOXUAN (Autor:in) / LIU XIAOYAN (Autor:in) / QIU JINKUI (Autor:in) / LIU ZHONGYANG (Autor:in) / XU FANG (Autor:in)
11.06.2024
Patent
Elektronische Ressource
Chinesisch
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