A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of carrier pile
The invention relates to the technical field of civil engineering foundation piles, and discloses a construction method of a carrier pile. Three cement sand mixtures with different proportions and the strength changing from low to high are respectively filled in three tamping positions with different depths for tamping, a pile end carrier composed of a lower tamping body, a middle tamping body and an upper tamping body is formed, the strength of the upper tamping body is the highest to avoid penetration of a pile body, the strength of the middle tamping body is slightly reduced for connection and transition, and the strength of the middle tamping body is slightly reduced to avoid penetration of the pile body. The strength of the lower ramming and expanding body is slightly higher than that of the undisturbed soil body, so that the strength and modulus are gradually reduced from inside to outside, the peripheral compaction soil body and the influence soil body are equivalent to a five-level extended foundation, the pressure of the upper load is gradually diffused and reduced in the transfer process, meanwhile, the number and efficiency of the filler are remarkably improved, and rapid forming of the carrier is promoted. And the stress volume and the influence range of a carrier are increased, so that the bearing capacity of the pile is greatly improved, and the problems of insufficient bearing capacity and overlarge settling volume are avoided.
本发明涉及土建基桩技术领域，公开了一种载体桩的施工方法。本发明通过在三个不同深度的夯击位、分别填入三种不同配比的强度由低变高的水泥砂拌合物进行夯实，形成了由下、中、上三个夯扩体组成的桩端载体，上夯扩体强度最高避免桩身刺入，中夯扩体强度稍降用于衔接和过度，下夯扩体强度稍高于原状土体，使得从内到外强度和模量逐渐降低，再加上外周挤密土体和影响土体，相当于多达5级的扩展基础，上部荷载在传递过程中压力逐级扩散、消减，同时显著提升填料的数量和效率、促进载体的快速成型，增加载体的和受力体积和影响范围，从而大幅提高桩的承载能力，避免出现承载力不足和沉降量过大的问题。
Construction method of carrier pile
The invention relates to the technical field of civil engineering foundation piles, and discloses a construction method of a carrier pile. Three cement sand mixtures with different proportions and the strength changing from low to high are respectively filled in three tamping positions with different depths for tamping, a pile end carrier composed of a lower tamping body, a middle tamping body and an upper tamping body is formed, the strength of the upper tamping body is the highest to avoid penetration of a pile body, the strength of the middle tamping body is slightly reduced for connection and transition, and the strength of the middle tamping body is slightly reduced to avoid penetration of the pile body. The strength of the lower ramming and expanding body is slightly higher than that of the undisturbed soil body, so that the strength and modulus are gradually reduced from inside to outside, the peripheral compaction soil body and the influence soil body are equivalent to a five-level extended foundation, the pressure of the upper load is gradually diffused and reduced in the transfer process, meanwhile, the number and efficiency of the filler are remarkably improved, and rapid forming of the carrier is promoted. And the stress volume and the influence range of a carrier are increased, so that the bearing capacity of the pile is greatly improved, and the problems of insufficient bearing capacity and overlarge settling volume are avoided.
本发明涉及土建基桩技术领域，公开了一种载体桩的施工方法。本发明通过在三个不同深度的夯击位、分别填入三种不同配比的强度由低变高的水泥砂拌合物进行夯实，形成了由下、中、上三个夯扩体组成的桩端载体，上夯扩体强度最高避免桩身刺入，中夯扩体强度稍降用于衔接和过度，下夯扩体强度稍高于原状土体，使得从内到外强度和模量逐渐降低，再加上外周挤密土体和影响土体，相当于多达5级的扩展基础，上部荷载在传递过程中压力逐级扩散、消减，同时显著提升填料的数量和效率、促进载体的快速成型，增加载体的和受力体积和影响范围，从而大幅提高桩的承载能力，避免出现承载力不足和沉降量过大的问题。
Construction method of carrier pile
一种载体桩的施工方法
WANG JIZHONG (author) / ZHANG LITING (author) / JANG JIN-HOON (author) / ZHANG LIANXI (author) / XU TONG (author) / WANG GUANGLIANG (author) / YANG QI'AN (author) / LI XIANGMING (author) / ZHANG SHAOXIONG (author)
2023-03-28
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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