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A platform for research: civil engineering, architecture and urbanism
Steel concrete column pile and construction method thereof
The invention provides a steel concrete column pile. The steel concrete column pile comprises a precast tubular pile, an H steel pile and an expansion part, wherein the expansion part is located at the top of the precast tubular pile, and the H steel pile is mounted at the expansion part; when the steel concrete column pile extends in the vertical direction, and in the horizontal direction, the peripheral surface of the expansion part outward exceeds the peripheral surface of the precast tubular pile; the expansion part comprises a steel barrel fixedly connected to the precast tubular pile, one end of a filled steel reinforcement cage extends into a central hole of the precast tubular pile, the other end extends into the steel barrel, and a concrete core extending into the central hole ofthe precast tubular pile is cast into the steel barrel; and after a bottom plate of an underground structure reaches the maintenance period, at least part of the H steel pile, which upwards exceeds the bottom plate, is dismounted. The invention also provides a construction method of the steel concrete column pile. The problems that the stability of a support pillar in a base pit in a soft soil layer is poorer and the water stop effect is poor can be better solved.
本申请提出了一种钢砼立柱桩，其包括预制管桩、H钢桩和扩大部，该扩大部位于该预制管桩的桩顶，H钢桩安装在该扩大部上；当该钢砼立柱桩沿竖直方向延伸时，在水平方向上，该扩大部的外周面向外超出预制管桩的外周面；该扩大部包括一钢筒，该钢筒固定连接在预制管桩上，灌芯钢筋笼的一端伸入到预制管桩的中心孔内、另一端伸入到钢筒内，在钢筒内浇注有延伸到预制管桩的中心孔内的混凝土芯；在地下结构的底板达到养护期限后，至少部分向上超过所述底板的H钢桩被拆除。本申请还提出了该钢砼立柱桩的施工方法。本申请能够较好地解决软弱土层内，基坑内部的支撑立柱的稳定性较差，以及止水效果差的问题。
Steel concrete column pile and construction method thereof
The invention provides a steel concrete column pile. The steel concrete column pile comprises a precast tubular pile, an H steel pile and an expansion part, wherein the expansion part is located at the top of the precast tubular pile, and the H steel pile is mounted at the expansion part; when the steel concrete column pile extends in the vertical direction, and in the horizontal direction, the peripheral surface of the expansion part outward exceeds the peripheral surface of the precast tubular pile; the expansion part comprises a steel barrel fixedly connected to the precast tubular pile, one end of a filled steel reinforcement cage extends into a central hole of the precast tubular pile, the other end extends into the steel barrel, and a concrete core extending into the central hole ofthe precast tubular pile is cast into the steel barrel; and after a bottom plate of an underground structure reaches the maintenance period, at least part of the H steel pile, which upwards exceeds the bottom plate, is dismounted. The invention also provides a construction method of the steel concrete column pile. The problems that the stability of a support pillar in a base pit in a soft soil layer is poorer and the water stop effect is poor can be better solved.
本申请提出了一种钢砼立柱桩，其包括预制管桩、H钢桩和扩大部，该扩大部位于该预制管桩的桩顶，H钢桩安装在该扩大部上；当该钢砼立柱桩沿竖直方向延伸时，在水平方向上，该扩大部的外周面向外超出预制管桩的外周面；该扩大部包括一钢筒，该钢筒固定连接在预制管桩上，灌芯钢筋笼的一端伸入到预制管桩的中心孔内、另一端伸入到钢筒内，在钢筒内浇注有延伸到预制管桩的中心孔内的混凝土芯；在地下结构的底板达到养护期限后，至少部分向上超过所述底板的H钢桩被拆除。本申请还提出了该钢砼立柱桩的施工方法。本申请能够较好地解决软弱土层内，基坑内部的支撑立柱的稳定性较差，以及止水效果差的问题。
Steel concrete column pile and construction method thereof
钢砼立柱桩及其施工方法
LI RENMIN (author) / GE LIRUI (author) / WANG TAO (author) / WANG JIANLAN (author)
2020-08-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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