Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for forming cast-in-place pile in karst development area
The invention relates to the technical field of cast-in-place piles, and discloses a method for forming a cast-in-place pile in a karst development area. The method comprises the following construction steps that (1) a full-slewing drilling machine is used for driving a sleeve to rotate and press downwards, and a pile hole is formed in the sleeve;(2) a slag removal barrel is put into the sleeve for primary hole cleaning, and sediment at the bottom of the pile hole falls into a containing cavity of the slag removal barrel from top to bottom;(3) a reinforcement cage is arranged below the interior of the pile hole, the periphery of the reinforcement cage is wrapped with a metal outer wire net, and the periphery of the metal outer wire net is wrapped with a dense-mesh nylon net;(4) a slag removing head is put into the pile hole for secondary hole cleaning, and the sediment is driven to upwards surge to be in a suspended state;(5) concrete is poured into the pile hole through a pouring pipe, and meanwhile the sleeve is upwards and longitudinally pulled out; the method for forming the cast-in-place pile in the karst development area has the following advantages that (1) drilling efficiency is high;(2) a problem of diffusion and loss of concrete towards a karst cave after the sleeve is pulled out is solved;(3) loss of the concrete is effectively controlled; and (4) on-site civilized construction condition is good.
本发明涉及灌注桩的技术领域，公开了岩溶发育区灌注桩成桩方法，包括以下施工步骤：1)、利用全回转钻机带动套管回转下压，套管内形成桩孔；2)、在套管内下入清渣桶进行第一次清孔，桩孔底部的沉渣自上而下落入在清渣桶的容腔中；3)、往桩孔内下方钢筋笼，钢筋笼的外周围裹有金属外丝网，金属外丝网的外周围裹有密目尼龙网；4)、往桩孔内下入清渣头进行第二次清孔，带动沉渣朝上涌起呈悬浮状；5)、通过灌注管往桩孔内灌注混凝土，同时朝上纵向起拔所述套管；岩溶发育区灌注桩成桩方法具有以下优点：1)、钻进效率高；2)、解决套管起拔后，混凝土朝溶洞的扩散流失问题；3)、有效控制了混凝土的流失；4)、现场文明施工条件好。
Method for forming cast-in-place pile in karst development area
The invention relates to the technical field of cast-in-place piles, and discloses a method for forming a cast-in-place pile in a karst development area. The method comprises the following construction steps that (1) a full-slewing drilling machine is used for driving a sleeve to rotate and press downwards, and a pile hole is formed in the sleeve;(2) a slag removal barrel is put into the sleeve for primary hole cleaning, and sediment at the bottom of the pile hole falls into a containing cavity of the slag removal barrel from top to bottom;(3) a reinforcement cage is arranged below the interior of the pile hole, the periphery of the reinforcement cage is wrapped with a metal outer wire net, and the periphery of the metal outer wire net is wrapped with a dense-mesh nylon net;(4) a slag removing head is put into the pile hole for secondary hole cleaning, and the sediment is driven to upwards surge to be in a suspended state;(5) concrete is poured into the pile hole through a pouring pipe, and meanwhile the sleeve is upwards and longitudinally pulled out; the method for forming the cast-in-place pile in the karst development area has the following advantages that (1) drilling efficiency is high;(2) a problem of diffusion and loss of concrete towards a karst cave after the sleeve is pulled out is solved;(3) loss of the concrete is effectively controlled; and (4) on-site civilized construction condition is good.
本发明涉及灌注桩的技术领域，公开了岩溶发育区灌注桩成桩方法，包括以下施工步骤：1)、利用全回转钻机带动套管回转下压，套管内形成桩孔；2)、在套管内下入清渣桶进行第一次清孔，桩孔底部的沉渣自上而下落入在清渣桶的容腔中；3)、往桩孔内下方钢筋笼，钢筋笼的外周围裹有金属外丝网，金属外丝网的外周围裹有密目尼龙网；4)、往桩孔内下入清渣头进行第二次清孔，带动沉渣朝上涌起呈悬浮状；5)、通过灌注管往桩孔内灌注混凝土，同时朝上纵向起拔所述套管；岩溶发育区灌注桩成桩方法具有以下优点：1)、钻进效率高；2)、解决套管起拔后，混凝土朝溶洞的扩散流失问题；3)、有效控制了混凝土的流失；4)、现场文明施工条件好。
Method for forming cast-in-place pile in karst development area
岩溶发育区灌注桩成桩方法
LEI BIN (Autor:in) / CHEN XIAOHUI (Autor:in) / TONG XIN (Autor:in) / LI SHUQING (Autor:in) / LIU XIAOMIN (Autor:in) / YANG JING (Autor:in) / WANG ZHIQUAN (Autor:in) / LI BO (Autor:in)
07.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Cast-in-place pile hole-forming construction process in strong karst development area
| Europäisches Patentamt | 2022
Cast-in-place pile forming method for karst cave stratum
| Europäisches Patentamt | 2023
Mechanical pore-forming cast-in-place pile karst cave blocking method
| Europäisches Patentamt | 2022
Pile-forming construction method for cast-in-situ bored pile in karst area
| Europäisches Patentamt | 2024
Cast-in-place pile karst cave treatment construction method
| Europäisches Patentamt | 2023