Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for excavating and breaking middle part of defective cast-in-place pile
The invention relates to the technical field of building construction, and discloses a method for excavating and breaking the middle of a defective cast-in-place pile. Comprising the following construction steps that S1, a drilling positioning machine is moved to the position above the defective cast-in-place pile, and the drilling positioning machine is fixed; s2, a positioning mechanism is started, and the drilling position is determined according to the diameter of the defective cast-in-place pile; s3, a drilling mechanism is started, water mill drilling is conducted, and a through annular space is formed through communication; s4, a detection core-pulling hole is reserved in a concrete column in the middle of the defective cast-in-place pile, and a plurality of drill holes are additionally formed through a pneumatic hammer machine; s5, a hammer head and a steel wedge are arranged in the outer ring water mill drill hole, so that the concrete column is separated from the concrete body of the pile body; s6, the block concrete is hoisted out of the hole through a winch and a hoisting hopper; s7, after concrete of the pile body of the defective pile on the top layer is chiseled away, construction of the next layer is conducted; and S8, repeating the step of breaking the middle concrete column after the water milling and drilling occlusion annular coring until the defect position is excavated.
本发明涉及建筑施工技术领域，公开了缺陷灌注桩中部开挖破除方法。包括以下施工步骤：S1：将钻孔定位机移动至缺陷灌注桩的上方，固定钻孔定位机；S2：启动定位机构，按照缺陷灌注桩的直径确定钻孔位置；S3：启动钻孔机构，水磨钻孔并连通为贯通的环形空间；S4：缺陷灌注桩中部的混凝土柱上留有检测抽芯孔，再利用风炮机增加若干个钻孔；S5：在外环水磨钻孔内置入锤头与钢楔子，使混凝土柱从桩身混凝土本体中脱离；S6：利用卷扬机和吊斗将分块混凝土起吊出孔；S7：完成顶层缺陷桩桩身混凝土凿除后，进行下一层施工；S8：重复上述先水磨钻咬合环状取芯后破除中部混凝土柱的步骤，直至开挖至缺陷位置。
Method for excavating and breaking middle part of defective cast-in-place pile
The invention relates to the technical field of building construction, and discloses a method for excavating and breaking the middle of a defective cast-in-place pile. Comprising the following construction steps that S1, a drilling positioning machine is moved to the position above the defective cast-in-place pile, and the drilling positioning machine is fixed; s2, a positioning mechanism is started, and the drilling position is determined according to the diameter of the defective cast-in-place pile; s3, a drilling mechanism is started, water mill drilling is conducted, and a through annular space is formed through communication; s4, a detection core-pulling hole is reserved in a concrete column in the middle of the defective cast-in-place pile, and a plurality of drill holes are additionally formed through a pneumatic hammer machine; s5, a hammer head and a steel wedge are arranged in the outer ring water mill drill hole, so that the concrete column is separated from the concrete body of the pile body; s6, the block concrete is hoisted out of the hole through a winch and a hoisting hopper; s7, after concrete of the pile body of the defective pile on the top layer is chiseled away, construction of the next layer is conducted; and S8, repeating the step of breaking the middle concrete column after the water milling and drilling occlusion annular coring until the defect position is excavated.
本发明涉及建筑施工技术领域，公开了缺陷灌注桩中部开挖破除方法。包括以下施工步骤：S1：将钻孔定位机移动至缺陷灌注桩的上方，固定钻孔定位机；S2：启动定位机构，按照缺陷灌注桩的直径确定钻孔位置；S3：启动钻孔机构，水磨钻孔并连通为贯通的环形空间；S4：缺陷灌注桩中部的混凝土柱上留有检测抽芯孔，再利用风炮机增加若干个钻孔；S5：在外环水磨钻孔内置入锤头与钢楔子，使混凝土柱从桩身混凝土本体中脱离；S6：利用卷扬机和吊斗将分块混凝土起吊出孔；S7：完成顶层缺陷桩桩身混凝土凿除后，进行下一层施工；S8：重复上述先水磨钻咬合环状取芯后破除中部混凝土柱的步骤，直至开挖至缺陷位置。
Method for excavating and breaking middle part of defective cast-in-place pile
缺陷灌注桩中部开挖破除方法
CHEN ZHENGJIE (Autor:in)
31.05.2022
Patent
Elektronische Ressource
Chinesisch
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