Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation pit supporting construction method with low stratum disturbance
The invention discloses a foundation pit supporting construction method with low disturbance to stratums, and aims to solve the problems of difficulty in anchor rod construction, easiness in soil body loss, water and sand burst and the like of stratums due to the fact that confined water or a fine sand layer is often encountered during height construction of a supporting anchor rod at the bottommost part of a supporting side wall. The construction mode that top anchor rod reinforcement is combined with bottom horizontal section steel combined supporting is provided, a triangular bracket is fixed to a support pile, a section steel enclosing purlin is arranged on the triangular bracket, finally, the section steel enclosing purlin is anchored into a raft through a section steel support, and the side pressure of the support pile is transmitted to a foundation bottom plate of a main body structure to be built. According to the construction method, the lateral pressure and lateral deformation of the support piles are reduced, it is guaranteed that reinforcement of the support piles can meet the excavation requirement, disturbance to nearby stratums is greatly reduced, the construction efficiency is improved, the construction cost is saved, and the construction method has popularization prospects.
本发明公开了一种对地层扰动较低的基坑支护施工方法，针对支护侧壁最底部一道支护锚杆的高度施工时，常常遇到承压水或细砂层，导致锚杆施工困难，并且地层容易土体流失、涌水涌砂等不利现象，提出了顶部锚杆加固结合底部水平型钢组合支撑的施工方式，在支护桩上固定一个三角托架，三角托架上布置型钢围檩，最后将型钢围檩通过型钢支撑锚入筏板内，将支护桩侧压力传递至拟建主体结构基础底板上，以减小支护桩侧压力和侧向变形，保证了支护桩的加固能够达到开挖要求，并且对附近地层产生的扰动大大降低，本施工方法提高了施工效率，节约了施工成本，具有推广的前景。
Foundation pit supporting construction method with low stratum disturbance
The invention discloses a foundation pit supporting construction method with low disturbance to stratums, and aims to solve the problems of difficulty in anchor rod construction, easiness in soil body loss, water and sand burst and the like of stratums due to the fact that confined water or a fine sand layer is often encountered during height construction of a supporting anchor rod at the bottommost part of a supporting side wall. The construction mode that top anchor rod reinforcement is combined with bottom horizontal section steel combined supporting is provided, a triangular bracket is fixed to a support pile, a section steel enclosing purlin is arranged on the triangular bracket, finally, the section steel enclosing purlin is anchored into a raft through a section steel support, and the side pressure of the support pile is transmitted to a foundation bottom plate of a main body structure to be built. According to the construction method, the lateral pressure and lateral deformation of the support piles are reduced, it is guaranteed that reinforcement of the support piles can meet the excavation requirement, disturbance to nearby stratums is greatly reduced, the construction efficiency is improved, the construction cost is saved, and the construction method has popularization prospects.
本发明公开了一种对地层扰动较低的基坑支护施工方法，针对支护侧壁最底部一道支护锚杆的高度施工时，常常遇到承压水或细砂层，导致锚杆施工困难，并且地层容易土体流失、涌水涌砂等不利现象，提出了顶部锚杆加固结合底部水平型钢组合支撑的施工方式，在支护桩上固定一个三角托架，三角托架上布置型钢围檩，最后将型钢围檩通过型钢支撑锚入筏板内，将支护桩侧压力传递至拟建主体结构基础底板上，以减小支护桩侧压力和侧向变形，保证了支护桩的加固能够达到开挖要求，并且对附近地层产生的扰动大大降低，本施工方法提高了施工效率，节约了施工成本，具有推广的前景。
Foundation pit supporting construction method with low stratum disturbance
一种对地层扰动较低的基坑支护施工方法
LIU SHUAIYANG (Autor:in) / LI DONGHUA (Autor:in) / YU HONGDA (Autor:in) / LU LINAN (Autor:in) / REN YANAN (Autor:in) / HUANG CHEN (Autor:in) / WANG WEI (Autor:in) / ZHANG PUWEN (Autor:in) / LI ZHE (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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