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A platform for research: civil engineering, architecture and urbanism
Precast pile vertical compression resistance static load test pile cap rapid manufacturing method
The invention belongs to the technical field of engineering, and particularly relates to a quick manufacturing method for a vertical compressive static test pile cap of a precast pile, which aims at solving the problems of low compressive strength, large crack width and large permeable porosity in the prior art and comprises the following steps: S1, preparing a mold and a vertical compressive static test pile cap material of the precast pile; the pile cap material for the vertical compressive static test of the precast pile comprises micro-expansive fine aggregate concrete, a reinforcing mesh and stirrups, the micro-expansive fine aggregate concrete comprises 20-25 parts of cement, 30-40 parts of modified quartz sand, 35-40 parts of fine aggregate, 1-3 parts of an expanding agent, 1-2 parts of an additive and 1-2 parts of modified fibers, and the reinforcing mesh and the stirrups are used as a supporting framework. The micro-expansive fine aggregate concrete is used as a material, so that the compressive strength of the pile cap can be enhanced, the number of gaps can be reduced, the width of the gaps becomes smaller, the permeable porosity also becomes smaller, and the performance of the pile cap is enhanced.
本发明属于工程技术领域，尤其是一种预制桩竖向抗压静载试验桩帽快速制作方法，针对现有的抗压强度低，裂缝宽度和渗透孔隙率大的问题，现提出如下方案，其包括以下步骤：S1：准备好模具和预制桩竖向抗压静载试验桩帽材料，预制桩竖向抗压静载试验桩帽材料包括微膨胀细石混凝土、钢筋网片和箍筋，微膨胀细石混凝土包括20份～25份的水泥、30份～40份的改性石英砂、35份～40份的细骨料、1份～3份的膨胀剂、1份～2份的添加剂和1份～2份的改性纤维，利用钢筋网片和箍筋作为支撑骨架，微膨胀细石混凝土作为材料，从而可以增强桩帽的抗压强度，并可以减少缝隙数量，出现的缝隙宽度变小，渗透孔隙率也变小，增强桩帽的性能。
Precast pile vertical compression resistance static load test pile cap rapid manufacturing method
The invention belongs to the technical field of engineering, and particularly relates to a quick manufacturing method for a vertical compressive static test pile cap of a precast pile, which aims at solving the problems of low compressive strength, large crack width and large permeable porosity in the prior art and comprises the following steps: S1, preparing a mold and a vertical compressive static test pile cap material of the precast pile; the pile cap material for the vertical compressive static test of the precast pile comprises micro-expansive fine aggregate concrete, a reinforcing mesh and stirrups, the micro-expansive fine aggregate concrete comprises 20-25 parts of cement, 30-40 parts of modified quartz sand, 35-40 parts of fine aggregate, 1-3 parts of an expanding agent, 1-2 parts of an additive and 1-2 parts of modified fibers, and the reinforcing mesh and the stirrups are used as a supporting framework. The micro-expansive fine aggregate concrete is used as a material, so that the compressive strength of the pile cap can be enhanced, the number of gaps can be reduced, the width of the gaps becomes smaller, the permeable porosity also becomes smaller, and the performance of the pile cap is enhanced.
本发明属于工程技术领域，尤其是一种预制桩竖向抗压静载试验桩帽快速制作方法，针对现有的抗压强度低，裂缝宽度和渗透孔隙率大的问题，现提出如下方案，其包括以下步骤：S1：准备好模具和预制桩竖向抗压静载试验桩帽材料，预制桩竖向抗压静载试验桩帽材料包括微膨胀细石混凝土、钢筋网片和箍筋，微膨胀细石混凝土包括20份～25份的水泥、30份～40份的改性石英砂、35份～40份的细骨料、1份～3份的膨胀剂、1份～2份的添加剂和1份～2份的改性纤维，利用钢筋网片和箍筋作为支撑骨架，微膨胀细石混凝土作为材料，从而可以增强桩帽的抗压强度，并可以减少缝隙数量，出现的缝隙宽度变小，渗透孔隙率也变小，增强桩帽的性能。
Precast pile vertical compression resistance static load test pile cap rapid manufacturing method
一种预制桩竖向抗压静载试验桩帽快速制作方法
ZHENG JIESHENG (author)
2023-08-04
Patent
Electronic Resource
Chinese
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