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A platform for research: civil engineering, architecture and urbanism
Foundation pit supporting structure using steel sheet piles and concrete precast piles and supporting method thereof
The invention discloses a foundation pit supporting structure using steel sheet piles and concrete precast piles. The foundation pit supporting structure comprises supporting row piles, each supporting row pile comprises a top beam and a plurality of supporting piles which are arranged at intervals and inserted into a soil body, each supporting pile comprises a pile body, the end, inserted into the soil body, of each pile body is a pile tip, and the other end of each pile body is a pile tail; the pile tails of all the supporting piles are fixed to the top beams; each the supporting pile is composed of the steel sheet piles and the concrete precast piles which are alternately arranged at intervals, 1-2 steel sheet piles are arranged between every two adjacent concrete precast piles, and theincluded angle between each steel sheet pile and the gravity direction is alpha; the included angle between each concrete precast pile and the gravity direction is beta, alpha is larger than or equalto 0 degree and smaller than or equal to 30 degrees, beta is larger than or equal to 0 degree and smaller than or equal to 30 degrees, and alpha and beta are not 0 degree at the same time, so that the supporting piles and the top beams form a rigid frame, the supporting effect is improved, and the excavation depth of a foundation pit is increased. The steel sheet piles can be pulled out after foundation construction and backfilling are completed, parts of the concrete precast piles are reserved in a soil layer, resources are saved, and meanwhile displacement of the soil body on the rear sideof the foundation pit is well controlled.
本发明公开了一种利用钢板桩和混凝土预制桩的基坑支护结构，包括支护排桩，支护排桩包括冠梁和多个间隔布置插入土体的支护桩，每个支护桩包括桩体，桩体的位于插入土体的一端为桩尖，另一端为桩尾；所有支护桩的桩尾均与冠梁固定；支护桩由间隔交替布置的钢板桩和混凝土预制桩构成，在相邻的两个混凝土预制桩之间布置1‑2个钢板桩，钢板桩与重力方向的夹角为α；混凝土预制桩与重力方向的夹角为β，0°≥α≥30°，0°≥β≥30°，α和β不同时为0°，从而使支护桩和冠梁形成刚架，改善了支撑效果，增加基坑的开挖深度。钢板桩在基础施工完成、回填后可拔出，土层中留有部分混凝土预制桩，在节约资源的同时较好地控制基坑后侧土体的位移。
Foundation pit supporting structure using steel sheet piles and concrete precast piles and supporting method thereof
The invention discloses a foundation pit supporting structure using steel sheet piles and concrete precast piles. The foundation pit supporting structure comprises supporting row piles, each supporting row pile comprises a top beam and a plurality of supporting piles which are arranged at intervals and inserted into a soil body, each supporting pile comprises a pile body, the end, inserted into the soil body, of each pile body is a pile tip, and the other end of each pile body is a pile tail; the pile tails of all the supporting piles are fixed to the top beams; each the supporting pile is composed of the steel sheet piles and the concrete precast piles which are alternately arranged at intervals, 1-2 steel sheet piles are arranged between every two adjacent concrete precast piles, and theincluded angle between each steel sheet pile and the gravity direction is alpha; the included angle between each concrete precast pile and the gravity direction is beta, alpha is larger than or equalto 0 degree and smaller than or equal to 30 degrees, beta is larger than or equal to 0 degree and smaller than or equal to 30 degrees, and alpha and beta are not 0 degree at the same time, so that the supporting piles and the top beams form a rigid frame, the supporting effect is improved, and the excavation depth of a foundation pit is increased. The steel sheet piles can be pulled out after foundation construction and backfilling are completed, parts of the concrete precast piles are reserved in a soil layer, resources are saved, and meanwhile displacement of the soil body on the rear sideof the foundation pit is well controlled.
本发明公开了一种利用钢板桩和混凝土预制桩的基坑支护结构，包括支护排桩，支护排桩包括冠梁和多个间隔布置插入土体的支护桩，每个支护桩包括桩体，桩体的位于插入土体的一端为桩尖，另一端为桩尾；所有支护桩的桩尾均与冠梁固定；支护桩由间隔交替布置的钢板桩和混凝土预制桩构成，在相邻的两个混凝土预制桩之间布置1‑2个钢板桩，钢板桩与重力方向的夹角为α；混凝土预制桩与重力方向的夹角为β，0°≥α≥30°，0°≥β≥30°，α和β不同时为0°，从而使支护桩和冠梁形成刚架，改善了支撑效果，增加基坑的开挖深度。钢板桩在基础施工完成、回填后可拔出，土层中留有部分混凝土预制桩，在节约资源的同时较好地控制基坑后侧土体的位移。
Foundation pit supporting structure using steel sheet piles and concrete precast piles and supporting method thereof
利用钢板桩和混凝土预制桩的基坑支护结构及其支护方法
ZHOU HAIZUO (author) / ZHENG GANG (author) / WANG ENYU (author) / GUO ZHIYI (author) / HE XIAOPEI (author)
2020-06-16
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Foundation pit supporting device adopting steel sheet piles and construction method thereof
| European Patent Office | 2020
| Engineering Index Backfile | 1963
| Engineering Index Backfile | 1923
| TIBKAT | 1986
Engineering Index Backfile | 1961