A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foundation pit support construction scheme and pre-stressed anchor cable construction scheme thereof
The invention relates to the field of foundation pit construction, in particular to a foundation pit supporting construction scheme and a pre-stressed anchor cable construction scheme thereof, which comprises the following steps: drilling: forming a blind hole in a stable rock, and forming a through hole communicated with the blind hole in a sliding body of a foundation pit; an anchor cable is arranged, specifically, one end of the anchor cable penetrates through the through hole and is arranged in the blind hole; primary grouting is conducted, specifically, grouting is conducted on the through holes of the slip mass and the blind holes of the stable rock stratum; secondary grouting is conducted, specifically, after the slurry obtained after primary grouting is initially set, grouting is conducted on the through hole of the slip mass and the blind hole of the stable rock stratum again; and tensioning and locking are conducted, specifically, the anchor cables are tensioned and fixed, so that the sliding body and the stable rock stratum are relatively fixed. After drilling, primary manufacturing, anchor cable arrangement, primary grouting, secondary grouting, tensioning and locking are conducted, a sliding body and a stable rock stratum are connected through anchor cables, a slope and the stable rock stratum form a whole, the strength of the slope of a foundation pit is enhanced, and therefore the possibility of collapse is reduced.
本发明涉及基坑施工领域，尤其涉及一种基坑支护施工方案及其预应力锚索施工方案，包括以下步骤：钻孔：在稳固岩开设有盲孔，在基坑的滑体开设与盲孔连通的通孔；设置锚索：将锚索的一端穿设于通孔且设于盲孔内；一次注浆：向滑体的通孔和稳固岩层的盲孔注浆；二次注浆：待一次注浆的浆料初凝后，向滑体的通孔和稳固岩层的盲孔再次注浆；张拉和锁定：将所述锚索拉紧、固定，使滑体和所述稳固岩层相对固定。经过钻孔、一次制作和设置锚索、一次注浆、二次注浆、张拉和锁定后，锚索将滑体和稳固岩层连接，边坡和稳固岩层之间形成一个整体，使得基坑的边坡的强度得以加强，从而减少了发生塌方的可能性。
Foundation pit support construction scheme and pre-stressed anchor cable construction scheme thereof
The invention relates to the field of foundation pit construction, in particular to a foundation pit supporting construction scheme and a pre-stressed anchor cable construction scheme thereof, which comprises the following steps: drilling: forming a blind hole in a stable rock, and forming a through hole communicated with the blind hole in a sliding body of a foundation pit; an anchor cable is arranged, specifically, one end of the anchor cable penetrates through the through hole and is arranged in the blind hole; primary grouting is conducted, specifically, grouting is conducted on the through holes of the slip mass and the blind holes of the stable rock stratum; secondary grouting is conducted, specifically, after the slurry obtained after primary grouting is initially set, grouting is conducted on the through hole of the slip mass and the blind hole of the stable rock stratum again; and tensioning and locking are conducted, specifically, the anchor cables are tensioned and fixed, so that the sliding body and the stable rock stratum are relatively fixed. After drilling, primary manufacturing, anchor cable arrangement, primary grouting, secondary grouting, tensioning and locking are conducted, a sliding body and a stable rock stratum are connected through anchor cables, a slope and the stable rock stratum form a whole, the strength of the slope of a foundation pit is enhanced, and therefore the possibility of collapse is reduced.
本发明涉及基坑施工领域，尤其涉及一种基坑支护施工方案及其预应力锚索施工方案，包括以下步骤：钻孔：在稳固岩开设有盲孔，在基坑的滑体开设与盲孔连通的通孔；设置锚索：将锚索的一端穿设于通孔且设于盲孔内；一次注浆：向滑体的通孔和稳固岩层的盲孔注浆；二次注浆：待一次注浆的浆料初凝后，向滑体的通孔和稳固岩层的盲孔再次注浆；张拉和锁定：将所述锚索拉紧、固定，使滑体和所述稳固岩层相对固定。经过钻孔、一次制作和设置锚索、一次注浆、二次注浆、张拉和锁定后，锚索将滑体和稳固岩层连接，边坡和稳固岩层之间形成一个整体，使得基坑的边坡的强度得以加强，从而减少了发生塌方的可能性。
Foundation pit support construction scheme and pre-stressed anchor cable construction scheme thereof
一种基坑支护施工方案及其预应力锚索施工方案
LIU MENG (author) / CHEN XINRONG (author) / LI JIEMING (author) / LI SONGZHOU (author) / WU SHUIQUN (author) / XU JIYUAN (author) / XIE YUJUAN (author)
2022-07-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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