Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement soil enclosure wall-precast pile cantilever type combination support
The invention relates to a cement soil enclosure wall-precast pile cantilever type combination support. A precast pile is driven in a sleeving manner in a tensile region outside a cement soil stirringpile enclosure wall and the combination support is formed by means of a bonding force between a cement soil stirring pile and the precast pile. A steel tube and a reinforcing steel bar are inserted into the cement soil stirring pile enclosure wall, so that the strength of the cement soil enclosure wall is improved. A concrete crown beam and a coping plate are arranged on the top of the combination support, the reinforcing steel bar of the precast pile is anchored into the crown beam and a joint bar and the steel tube of the cement soil stirring pile are anchored into the coping plate, so thatthe integrity of an enclosure structure is improved. The bottom of a foundation pit is reinforced, so that the stability of the enclosure structure is improved and heave deformation at the bottom ofthe foundation pit is controlled. The cement soil enclosure wall-precast pile cantilever type combination support can be used in a circumstance that the construction conditions of the enclosure structure are limited or a structure (building) needed to be protected exists outside the pit, so that the rigidity of the enclosure structure is improved effectively under a circumstance of not increasingthe width of the enclosure structure, the lateral displacement of the enclosure structure and ground surface settlement outside the pit are reduced, influences of foundation pit excavation to a surrounding environment are reduced, and the engineering construction period is shortened. The cement soil enclosure wall-precast pile cantilever type combination support is good in applicability and socialbenefit.
一种水泥土围护墙‑预制桩悬臂式组合支护，在水泥土搅拌桩围护墙外侧受拉区套打预制桩，利用水泥土搅拌桩与预制桩之间的粘结力形成组合支护；水泥土搅拌桩围护墙内插入钢管和钢筋，增大水泥土围护墙强度；组合支护顶设置混凝土冠梁和压顶板，预制桩钢筋锚入冠梁、水泥土搅拌桩的插筋和钢管锚入压顶板，增加围护结构整体性；基坑底进行坑底加固，增大围护结构的稳定性，控制坑底隆起变形。本发明可用于围护结构施工条件受限或坑外有需保护构（建）筑物的情况，可在不增大围护结构宽度的条件下有效增大围护结构刚度，减少围护结构的侧向位移及坑外地表沉降，降低对基坑开挖对周边环境的影响，减少工程施工周期，具有良好的适用性和社会效益。
Cement soil enclosure wall-precast pile cantilever type combination support
The invention relates to a cement soil enclosure wall-precast pile cantilever type combination support. A precast pile is driven in a sleeving manner in a tensile region outside a cement soil stirringpile enclosure wall and the combination support is formed by means of a bonding force between a cement soil stirring pile and the precast pile. A steel tube and a reinforcing steel bar are inserted into the cement soil stirring pile enclosure wall, so that the strength of the cement soil enclosure wall is improved. A concrete crown beam and a coping plate are arranged on the top of the combination support, the reinforcing steel bar of the precast pile is anchored into the crown beam and a joint bar and the steel tube of the cement soil stirring pile are anchored into the coping plate, so thatthe integrity of an enclosure structure is improved. The bottom of a foundation pit is reinforced, so that the stability of the enclosure structure is improved and heave deformation at the bottom ofthe foundation pit is controlled. The cement soil enclosure wall-precast pile cantilever type combination support can be used in a circumstance that the construction conditions of the enclosure structure are limited or a structure (building) needed to be protected exists outside the pit, so that the rigidity of the enclosure structure is improved effectively under a circumstance of not increasingthe width of the enclosure structure, the lateral displacement of the enclosure structure and ground surface settlement outside the pit are reduced, influences of foundation pit excavation to a surrounding environment are reduced, and the engineering construction period is shortened. The cement soil enclosure wall-precast pile cantilever type combination support is good in applicability and socialbenefit.
一种水泥土围护墙‑预制桩悬臂式组合支护，在水泥土搅拌桩围护墙外侧受拉区套打预制桩，利用水泥土搅拌桩与预制桩之间的粘结力形成组合支护；水泥土搅拌桩围护墙内插入钢管和钢筋，增大水泥土围护墙强度；组合支护顶设置混凝土冠梁和压顶板，预制桩钢筋锚入冠梁、水泥土搅拌桩的插筋和钢管锚入压顶板，增加围护结构整体性；基坑底进行坑底加固，增大围护结构的稳定性，控制坑底隆起变形。本发明可用于围护结构施工条件受限或坑外有需保护构（建）筑物的情况，可在不增大围护结构宽度的条件下有效增大围护结构刚度，减少围护结构的侧向位移及坑外地表沉降，降低对基坑开挖对周边环境的影响，减少工程施工周期，具有良好的适用性和社会效益。
Cement soil enclosure wall-precast pile cantilever type combination support
一种水泥土围护墙-预制桩悬臂式组合支护
ZHENG JIANJIAN (Autor:in) / HE JIANPING (Autor:in) / LU CHEN (Autor:in) / XU DAPENG (Autor:in) / LYU ZHE (Autor:in)
18.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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