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A platform for research: civil engineering, architecture and urbanism
Karst cave stratum pile foundation structure and pile forming process
The invention relates to a karst cave stratum pile foundation structure and a pile forming process, and belongs to the technical field of pile foundation construction. The karst cave stratum pile foundation structure comprises a drill hole formed in a karst cave stratum and a pile casing arranged in the drill hole. The drill hole vertically penetrates through a top plate of a karst cave and a wall body of the karst cave and then extends into a rock mass at the bottom of the karst cave, the length of the pile casing is larger than the height of a cavity of the karst cave, the top end of the pile casing is arranged in the drill hole of the top plate of the karst cave, the bottom end of the pile casing is arranged in the drill hole of the rock mass at the bottom of the karst cave, and concrete is poured into the steel pile casing. The pile casing is arranged in the cavity of the karst cave, the protective wall is formed in the position, in the cavity of the karst cave, of the pile casing, concrete is blocked by the pile casing and is not prone to flowing into the cavity of the karst cave in the concrete pouring process, so that it is guaranteed that the pouring amount of the concrete is consistent with the designed amount, waste of a large amount of concrete caused by the existence of the karst cave is avoided, and the quality of the formed pile foundation is correspondingly improved.
本申请涉及一种溶洞地层桩基结构及成桩工艺，属于桩基施工的技术领域，其包括开设在溶洞地层上的钻孔、置于钻孔内的护筒；所述钻孔竖直穿过溶洞的顶板和溶洞的墙体后延伸至溶洞的底部岩体内，所述护筒的长度大于溶洞腔体的高度，所述护筒的顶端置于溶洞顶板的钻孔中，所述护筒的底端置于溶洞底部岩体的钻孔中，且所述钢护筒内灌注有混凝土。通过在溶洞的腔体内设置护筒，令护筒在溶洞腔体的位置形成护壁，使灌注混凝土的过程时，混凝土受到护筒的阻拦而不易向溶洞腔体中流动，以此保证混凝土的灌注量与设计量一致，不会因溶洞的存在而造成大量混凝土的浪费，也相应的提高了桩基成型后的质量。
Karst cave stratum pile foundation structure and pile forming process
The invention relates to a karst cave stratum pile foundation structure and a pile forming process, and belongs to the technical field of pile foundation construction. The karst cave stratum pile foundation structure comprises a drill hole formed in a karst cave stratum and a pile casing arranged in the drill hole. The drill hole vertically penetrates through a top plate of a karst cave and a wall body of the karst cave and then extends into a rock mass at the bottom of the karst cave, the length of the pile casing is larger than the height of a cavity of the karst cave, the top end of the pile casing is arranged in the drill hole of the top plate of the karst cave, the bottom end of the pile casing is arranged in the drill hole of the rock mass at the bottom of the karst cave, and concrete is poured into the steel pile casing. The pile casing is arranged in the cavity of the karst cave, the protective wall is formed in the position, in the cavity of the karst cave, of the pile casing, concrete is blocked by the pile casing and is not prone to flowing into the cavity of the karst cave in the concrete pouring process, so that it is guaranteed that the pouring amount of the concrete is consistent with the designed amount, waste of a large amount of concrete caused by the existence of the karst cave is avoided, and the quality of the formed pile foundation is correspondingly improved.
本申请涉及一种溶洞地层桩基结构及成桩工艺，属于桩基施工的技术领域，其包括开设在溶洞地层上的钻孔、置于钻孔内的护筒；所述钻孔竖直穿过溶洞的顶板和溶洞的墙体后延伸至溶洞的底部岩体内，所述护筒的长度大于溶洞腔体的高度，所述护筒的顶端置于溶洞顶板的钻孔中，所述护筒的底端置于溶洞底部岩体的钻孔中，且所述钢护筒内灌注有混凝土。通过在溶洞的腔体内设置护筒，令护筒在溶洞腔体的位置形成护壁，使灌注混凝土的过程时，混凝土受到护筒的阻拦而不易向溶洞腔体中流动，以此保证混凝土的灌注量与设计量一致，不会因溶洞的存在而造成大量混凝土的浪费，也相应的提高了桩基成型后的质量。
Karst cave stratum pile foundation structure and pile forming process
一种溶洞地层桩基结构及成桩工艺
LIU YONG (author) / WANG XIULI (author) / YANG HUI (author) / CUI WENZHI (author) / HAN YONGLIANG (author) / LI MIN (author) / HAN XIUMAO (author) / YAO PENG (author)
2021-06-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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