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A platform for research: civil engineering, architecture and urbanism
Non-autoclaved residual-slurry-free concrete prefabricated tubular pile
The invention discloses a non-autoclaved residual-slurry-free concrete prefabricated pipe pile and a preparation method, the product has high toughness, high elastic modulus, good bending resistance, low prestress loss and strong chlorine salt corrosion resistance and freeze thawing resistance, and the quality defects that a super-long pile type of the pipe pile is easy to bend, ring cracks and the like are effectively overcome. The bearing capacity of the pipe pile is improved; by optimizing the raw material composition and the preparation process of the concrete prefabricated pipe pile, the non-autoclaved preparation of the residual-slurry-free concrete prefabricated pipe pile is realized, the design strength of C80 can be met only by normal-pressure low-temperature curing, and the production cost of the concrete prefabricated pipe pile is remarkably reduced; two pipe piles can be effectively installed, connected and used through structural optimization, the connection stability is improved through a fixing structure, the use position of the limiting rod is limited by pulling the pull block to enable the arc-shaped insertion block at the arc-shaped groove block to be inserted into the arc-shaped insertion groove at the limiting rod, the connection stability is high, and installation is efficient.
本发明公开了一种免蒸压无余浆混凝土预制管桩及制备方法，产品具有韧性高、高弹性模量、良好的抗弯性能和较低的预应力损失，同时具有较强的抗氯盐侵蚀和抗冻融性能，在有效解决管桩超长规格桩型易弯曲、环裂等质量缺陷的同时，提高了管桩承载力；通过对混凝土预制管桩原料组成、制备工艺的优化，实现了免蒸压制备无余浆混凝土预制管桩，只需常压低温养护即可满足C80的设计强度，显著降低了混凝土预制管桩的生产成本；本发明通过结构优化可有效将两个管桩进行安装连接使用，通过固定结构来提高连接稳定性，通过拉动拉块来使弧形槽块处弧形插块插入到限位杆处弧形插槽内对限位杆的使用位置进行限定，连接稳定性强，安装高效。
Non-autoclaved residual-slurry-free concrete prefabricated tubular pile
The invention discloses a non-autoclaved residual-slurry-free concrete prefabricated pipe pile and a preparation method, the product has high toughness, high elastic modulus, good bending resistance, low prestress loss and strong chlorine salt corrosion resistance and freeze thawing resistance, and the quality defects that a super-long pile type of the pipe pile is easy to bend, ring cracks and the like are effectively overcome. The bearing capacity of the pipe pile is improved; by optimizing the raw material composition and the preparation process of the concrete prefabricated pipe pile, the non-autoclaved preparation of the residual-slurry-free concrete prefabricated pipe pile is realized, the design strength of C80 can be met only by normal-pressure low-temperature curing, and the production cost of the concrete prefabricated pipe pile is remarkably reduced; two pipe piles can be effectively installed, connected and used through structural optimization, the connection stability is improved through a fixing structure, the use position of the limiting rod is limited by pulling the pull block to enable the arc-shaped insertion block at the arc-shaped groove block to be inserted into the arc-shaped insertion groove at the limiting rod, the connection stability is high, and installation is efficient.
本发明公开了一种免蒸压无余浆混凝土预制管桩及制备方法，产品具有韧性高、高弹性模量、良好的抗弯性能和较低的预应力损失，同时具有较强的抗氯盐侵蚀和抗冻融性能，在有效解决管桩超长规格桩型易弯曲、环裂等质量缺陷的同时，提高了管桩承载力；通过对混凝土预制管桩原料组成、制备工艺的优化，实现了免蒸压制备无余浆混凝土预制管桩，只需常压低温养护即可满足C80的设计强度，显著降低了混凝土预制管桩的生产成本；本发明通过结构优化可有效将两个管桩进行安装连接使用，通过固定结构来提高连接稳定性，通过拉动拉块来使弧形槽块处弧形插块插入到限位杆处弧形插槽内对限位杆的使用位置进行限定，连接稳定性强，安装高效。
Non-autoclaved residual-slurry-free concrete prefabricated tubular pile
一种免蒸压无余浆混凝土预制管桩
YAN HAOJIE (author) / LI SHOUKAI (author) / GUO XUELI (author) / SHANG FANHUA (author) / ZHANG KUIBO (author) / YAN DINGDING (author) / CHEN BAOYU (author) / LIU GUOLI (author) / JIA QIANQIAN (author) / ZHANG FENG (author)
2022-05-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C04B
Kalk
,
LIME
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