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A platform for research: civil engineering, architecture and urbanism
Reclamation area hybrid foundation impact-cone concrete pile construction technology
A reclamation area hybrid foundation impact-cone concrete pile construction technology comprises the following steps that a measurement pile casting is buried, wherein according to a designed pile site, the measurement pile casting is buried; mud is made from clay, wherein a mud pit is formed, and mud is prepared; punching is conducted, wherein pile driver is adopted to conduct punching, and punching is stopped when the depth is away from the designed bottom elevation of a steel casing a certain distance; hole verification and primary hole cleaning are conducted, wherein the formed hole is inspected, accepted and cleaned; the steel casting is put down, wherein section-by-section installation is conducted, and the steel casting is put down; secondary punching is conducted, wherein after thesteel casting is well put down, secondary punching is conducted; hole verification and primary hole cleaning are conducted, wherein the formed hole is inspected, accepted and cleaned; a reinforcementsteel cage is made and installed; a conduit is installed, wherein the conduit starts to be installed, and the conduit is put into the hole section by section during installation; secondary hole cleaning is conducted, wherein after the conduit is installed, secondary cleaning is conducted by using the conduit; and concrete is poured. According to the technology, after punching is conducted by a certain distance, the steel casting is put down, the situation that the steel casting is put down too deep can be avoided, the wall protection effect can be achieved, and a collapse accident generated after hole formation is avoided.
一种填海区混合地基冲孔灌注桩的施工工艺，包括如下步骤：埋设措施护筒：根据设计桩位，埋设措施护筒；黏土造浆：设置泥浆池，并制备泥浆；冲孔：桩机冲孔，深度达到距钢护筒设计底标高还有一定距离时停止冲孔；检孔、一次清孔：对成孔进行检查和验收，并进行清孔；下放钢护筒：分节安装、下放钢护筒；第二阶段冲孔：钢护筒下放完成后进行第二阶段冲孔；检孔、一次清孔：对成孔进行检查和验收，并进行清孔；钢筋笼制作、安装；导管安装：开始安放导管，导管在安放时逐节入孔；二次清孔：导管安装后利用导管进行二次清孔；灌注混凝土。本发明在冲孔至一定距离后下放钢护筒，可避免钢护筒下放超深，也可起到护壁作用，避免成孔后坍塌事故的发生。
Reclamation area hybrid foundation impact-cone concrete pile construction technology
A reclamation area hybrid foundation impact-cone concrete pile construction technology comprises the following steps that a measurement pile casting is buried, wherein according to a designed pile site, the measurement pile casting is buried; mud is made from clay, wherein a mud pit is formed, and mud is prepared; punching is conducted, wherein pile driver is adopted to conduct punching, and punching is stopped when the depth is away from the designed bottom elevation of a steel casing a certain distance; hole verification and primary hole cleaning are conducted, wherein the formed hole is inspected, accepted and cleaned; the steel casting is put down, wherein section-by-section installation is conducted, and the steel casting is put down; secondary punching is conducted, wherein after thesteel casting is well put down, secondary punching is conducted; hole verification and primary hole cleaning are conducted, wherein the formed hole is inspected, accepted and cleaned; a reinforcementsteel cage is made and installed; a conduit is installed, wherein the conduit starts to be installed, and the conduit is put into the hole section by section during installation; secondary hole cleaning is conducted, wherein after the conduit is installed, secondary cleaning is conducted by using the conduit; and concrete is poured. According to the technology, after punching is conducted by a certain distance, the steel casting is put down, the situation that the steel casting is put down too deep can be avoided, the wall protection effect can be achieved, and a collapse accident generated after hole formation is avoided.
一种填海区混合地基冲孔灌注桩的施工工艺，包括如下步骤：埋设措施护筒：根据设计桩位，埋设措施护筒；黏土造浆：设置泥浆池，并制备泥浆；冲孔：桩机冲孔，深度达到距钢护筒设计底标高还有一定距离时停止冲孔；检孔、一次清孔：对成孔进行检查和验收，并进行清孔；下放钢护筒：分节安装、下放钢护筒；第二阶段冲孔：钢护筒下放完成后进行第二阶段冲孔；检孔、一次清孔：对成孔进行检查和验收，并进行清孔；钢筋笼制作、安装；导管安装：开始安放导管，导管在安放时逐节入孔；二次清孔：导管安装后利用导管进行二次清孔；灌注混凝土。本发明在冲孔至一定距离后下放钢护筒，可避免钢护筒下放超深，也可起到护壁作用，避免成孔后坍塌事故的发生。
Reclamation area hybrid foundation impact-cone concrete pile construction technology
填海区混合地基冲孔灌注桩的施工工艺
HUANG PENGJU (author) / SHENG BIN (author) / CHENG JIAJUN (author) / LI MINGQUAN (author) / LUO SHENG (author)
2020-06-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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