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A platform for research: civil engineering, architecture and urbanism
Rotary excavating cast-in-situ bored pile and construction process thereof
The invention relates to the field of pile foundation construction, in particular to a rotary excavating cast-in-situ bored pile and a construction process thereof. The rotary excavating cast-in-situ bored pile is prepared from a concrete mixture; the concrete mixture is prepared from the following components in parts by weight: 853 to 965 parts of coarse aggregate, 486 to 558 parts of fine sand, 186 to 198 parts of cement, 25 to 38 parts of bentonite, 169 to 178 parts of water, 4.0 to 8.5 parts of a water reducing agent, 1.9 to 3.0 parts of polysilicate aluminum sulfate, 2.1 to 3.5 parts of sodium polyacrylate and 5.3 to 6.7 parts of sodium silicate; and the preparation method comprises the steps of field leveling, pile foundation positioning, pile casing embedding, hole cleaning, reinforcement cage mounting, concrete guide pipe mounting and concrete mixture pouring. The method has the advantage that the situation of pile breaking is reduced.
本申请涉及桩基施工领域，更具体地说，它涉及旋挖钻孔灌注桩及其施工工艺。旋挖钻孔灌注桩，由混凝土拌合料制备而成；按重量份数，混凝土拌合料包括853‑965份粗骨料、486‑558份细砂、186‑198份水泥、25‑38份膨润土、169‑178份水、4.0‑8.5份减水剂、1.9‑3.0份聚合硅酸硫酸铝、2.1‑3.5份聚丙烯酸钠和5.3‑6.7份硅酸钠；其制备方法为：平整场地、桩基定位、埋设护筒、清孔、安装钢筋笼、安装混凝土导管、浇注混凝土拌合料。本申请具有减少“断桩”的情况发生优点。
Rotary excavating cast-in-situ bored pile and construction process thereof
The invention relates to the field of pile foundation construction, in particular to a rotary excavating cast-in-situ bored pile and a construction process thereof. The rotary excavating cast-in-situ bored pile is prepared from a concrete mixture; the concrete mixture is prepared from the following components in parts by weight: 853 to 965 parts of coarse aggregate, 486 to 558 parts of fine sand, 186 to 198 parts of cement, 25 to 38 parts of bentonite, 169 to 178 parts of water, 4.0 to 8.5 parts of a water reducing agent, 1.9 to 3.0 parts of polysilicate aluminum sulfate, 2.1 to 3.5 parts of sodium polyacrylate and 5.3 to 6.7 parts of sodium silicate; and the preparation method comprises the steps of field leveling, pile foundation positioning, pile casing embedding, hole cleaning, reinforcement cage mounting, concrete guide pipe mounting and concrete mixture pouring. The method has the advantage that the situation of pile breaking is reduced.
本申请涉及桩基施工领域，更具体地说，它涉及旋挖钻孔灌注桩及其施工工艺。旋挖钻孔灌注桩，由混凝土拌合料制备而成；按重量份数，混凝土拌合料包括853‑965份粗骨料、486‑558份细砂、186‑198份水泥、25‑38份膨润土、169‑178份水、4.0‑8.5份减水剂、1.9‑3.0份聚合硅酸硫酸铝、2.1‑3.5份聚丙烯酸钠和5.3‑6.7份硅酸钠；其制备方法为：平整场地、桩基定位、埋设护筒、清孔、安装钢筋笼、安装混凝土导管、浇注混凝土拌合料。本申请具有减少“断桩”的情况发生优点。
Rotary excavating cast-in-situ bored pile and construction process thereof
旋挖钻孔灌注桩及其施工工艺
GAO YUNFEI (author) / YAN PENG (author) / ZHANG WENJUN (author) / YANG SHUIXIN (author) / WANG YECHENG (author)
2021-09-28
Patent
Electronic Resource
Chinese
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