Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for horizontal jet grouting pile advance support crossing water-rich sandstone section surrounding rock tunnel
The invention discloses a construction method for a horizontal jet grouting pile advance support to penetrate through a water-rich sandstone section surrounding rock tunnel. The construction method comprises the following steps that a, construction preparation is conducted, specifically, construction drawings and geological data are familiar, a construction scheme is determined, materials, equipment and tools needed by construction are prepared, and a construction site is cleaned and leveled; and b, measuring and positioning according to the design axis and mileage of the tunnel. The method has the beneficial effects that the stability of surrounding rock is improved, a curtain body can be formed on the periphery of the tunnel to bear part of stratum pressure, the stability of sandy soil soft rock after excavation is kept, and vault slump, collapse and ground surface settlement are effectively controlled; the degree of mechanization is high, equipment matching is perfect, for example, a pst-60 horizontal rotary spraying drilling machine and the like are adopted, the construction efficiency is improved, and the construction safety risk is reduced; and safety guarantee is provided for tunnel excavation, and the possibility of dangerous conditions such as collapse and collapse in the construction process is reduced.
本发明公开了一种水平旋喷桩超前支护穿越富水砂岩段围岩隧道施工方法，包括以下步骤：步骤a：施工准备：包括熟悉施工图纸和地质资料，确定施工方案，准备施工所需的材料、设备和工具，并对施工现场进行清理和平整；步骤b：测量定位：根据隧道的设计轴线和里程。本发明的有益效果如下：提高围岩稳定性：可以在隧道周边形成帷幕体，承受部分地层压力，保持砂土软岩在开挖后的稳定，有效控制拱顶滑塌、坍塌和地表沉降；机械化程度高：设备配套完善，如采用pst—60水平旋喷钻机等，提高了施工功效，降低了施工安全风险；保证施工安全：为隧道开挖提供安全保障，减少施工过程中出现溜塌、滑塌等危险情况的可能性。
Construction method for horizontal jet grouting pile advance support crossing water-rich sandstone section surrounding rock tunnel
The invention discloses a construction method for a horizontal jet grouting pile advance support to penetrate through a water-rich sandstone section surrounding rock tunnel. The construction method comprises the following steps that a, construction preparation is conducted, specifically, construction drawings and geological data are familiar, a construction scheme is determined, materials, equipment and tools needed by construction are prepared, and a construction site is cleaned and leveled; and b, measuring and positioning according to the design axis and mileage of the tunnel. The method has the beneficial effects that the stability of surrounding rock is improved, a curtain body can be formed on the periphery of the tunnel to bear part of stratum pressure, the stability of sandy soil soft rock after excavation is kept, and vault slump, collapse and ground surface settlement are effectively controlled; the degree of mechanization is high, equipment matching is perfect, for example, a pst-60 horizontal rotary spraying drilling machine and the like are adopted, the construction efficiency is improved, and the construction safety risk is reduced; and safety guarantee is provided for tunnel excavation, and the possibility of dangerous conditions such as collapse and collapse in the construction process is reduced.
本发明公开了一种水平旋喷桩超前支护穿越富水砂岩段围岩隧道施工方法，包括以下步骤：步骤a：施工准备：包括熟悉施工图纸和地质资料，确定施工方案，准备施工所需的材料、设备和工具，并对施工现场进行清理和平整；步骤b：测量定位：根据隧道的设计轴线和里程。本发明的有益效果如下：提高围岩稳定性：可以在隧道周边形成帷幕体，承受部分地层压力，保持砂土软岩在开挖后的稳定，有效控制拱顶滑塌、坍塌和地表沉降；机械化程度高：设备配套完善，如采用pst—60水平旋喷钻机等，提高了施工功效，降低了施工安全风险；保证施工安全：为隧道开挖提供安全保障，减少施工过程中出现溜塌、滑塌等危险情况的可能性。
Construction method for horizontal jet grouting pile advance support crossing water-rich sandstone section surrounding rock tunnel
一种水平旋喷桩超前支护穿越富水砂岩段围岩隧道施工方法
LI KEJUN (Autor:in) / CHEN DE (Autor:in) / ZHOU ZHOU (Autor:in) / ZHAO JUNKE (Autor:in) / LIU XIU (Autor:in) / SHI PENGZHI (Autor:in) / LUO JIN (Autor:in) / DANG SHENGLIN (Autor:in) / SU ZHAO (Autor:in) / LI CHUN (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
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