A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for forming hole in lower part of thick-layer loose slope volume gravelly soil high slope
The invention discloses a method for forming holes in the lower portion of a thick-layer loose slope volume gravelly soil high slope, relates to the field of slope engineering and tunnel engineering, and aims to improve construction safety and operability, accelerate construction progress and save engineering investment. According to the technical scheme, the method comprises the steps that firstly, emergency treatment is conducted, specifically, accumulated slag reversely presses a slope toe, and dangerous sources of a slope top and a slope surface are cleaned; secondly, slope supporting is conducted, specifically, a natural slope surface on the outer side of a slope opening line is locked through a first locking anchor rod, and slope surface supporting is conducted; (3) tunnel advance supporting and opening locking are conducted, specifically, second opening locking anchor rods are constructed along the outer side of the tunnel excavation contour line, grouting is conducted, a large pipe shed is constructed, and guide walls are constructed at the arch part and the side wall part of an opening; 4, slope toe retaining walls are constructed on the two sides of the hole to reversely press the bottom of the slope; and fifthly, tunnel supporting and excavation are carried out, wherein advance supporting, excavation and primary supporting are carried out on the tunnel, and then secondary lining is carried out on the tunnel. The method is used for supporting loose slope collapse block gravelly soil at the tunnel entrance.
本发明公开了一种在厚层松散坡积碎石土高边坡下部成洞的方法，涉及边坡工程及隧道工程领域，目的是提高施工的安全性和可操作性，加快施工进度，节约工程投资。本发明采用的技术方案是：步骤一、应急处理：堆渣反压坡脚，清理坡顶及坡面危险源；步骤二、边坡支护：对边坡开口线外侧的自然坡面通过第一锁口锚杆进行锁口，进行坡面支护；步骤三、隧道超前支护及锁口：沿隧道开挖轮廓线的外侧施工第二锁口锚杆并注浆，施工大管棚，在洞口拱部及边墙部位施工导向墙；步骤四、在洞口两侧施工坡脚挡墙反压边坡底部；步骤五、隧道支护及开挖：对隧道进行超前支护、开挖、初期支护，再对隧道进行二次衬砌。本发明用于隧道进口为松散崩坡积块碎石土的支护。
Method for forming hole in lower part of thick-layer loose slope volume gravelly soil high slope
The invention discloses a method for forming holes in the lower portion of a thick-layer loose slope volume gravelly soil high slope, relates to the field of slope engineering and tunnel engineering, and aims to improve construction safety and operability, accelerate construction progress and save engineering investment. According to the technical scheme, the method comprises the steps that firstly, emergency treatment is conducted, specifically, accumulated slag reversely presses a slope toe, and dangerous sources of a slope top and a slope surface are cleaned; secondly, slope supporting is conducted, specifically, a natural slope surface on the outer side of a slope opening line is locked through a first locking anchor rod, and slope surface supporting is conducted; (3) tunnel advance supporting and opening locking are conducted, specifically, second opening locking anchor rods are constructed along the outer side of the tunnel excavation contour line, grouting is conducted, a large pipe shed is constructed, and guide walls are constructed at the arch part and the side wall part of an opening; 4, slope toe retaining walls are constructed on the two sides of the hole to reversely press the bottom of the slope; and fifthly, tunnel supporting and excavation are carried out, wherein advance supporting, excavation and primary supporting are carried out on the tunnel, and then secondary lining is carried out on the tunnel. The method is used for supporting loose slope collapse block gravelly soil at the tunnel entrance.
本发明公开了一种在厚层松散坡积碎石土高边坡下部成洞的方法，涉及边坡工程及隧道工程领域，目的是提高施工的安全性和可操作性，加快施工进度，节约工程投资。本发明采用的技术方案是：步骤一、应急处理：堆渣反压坡脚，清理坡顶及坡面危险源；步骤二、边坡支护：对边坡开口线外侧的自然坡面通过第一锁口锚杆进行锁口，进行坡面支护；步骤三、隧道超前支护及锁口：沿隧道开挖轮廓线的外侧施工第二锁口锚杆并注浆，施工大管棚，在洞口拱部及边墙部位施工导向墙；步骤四、在洞口两侧施工坡脚挡墙反压边坡底部；步骤五、隧道支护及开挖：对隧道进行超前支护、开挖、初期支护，再对隧道进行二次衬砌。本发明用于隧道进口为松散崩坡积块碎石土的支护。
Method for forming hole in lower part of thick-layer loose slope volume gravelly soil high slope
在厚层松散坡积碎石土高边坡下部成洞的方法
WU XUEZHI (author) / XIONG XING (author) / QING HUABIN (author) / ZHANG SHUFA (author) / CHEN MAO (author)
2023-06-27
Patent
Electronic Resource
Chinese
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