A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for super large pile distance deep foundation pit supporting system
The invention provides a construction method for a super large pile distance deep foundation pit supporting system. Two rows of supporting piles are constructed at equal distances in the length direction of a foundation pit; when an existing structure exists at the construction part of the supporting piles, the supporting piles are constructed after crossing of the existing structure; after the supporting piles are constructed, crown beams are constructed at the tops of the supporting piles, and then board walls are constructed between the supporting piles located on the two sides of the existing structure, wherein the board walls are constructed with a reverse method; and after the board walls are constructed, the supporting system is constructed. The distance of the equal distance construction of the supporting piles is not larger than two times the diameter of the supporting piles, and the distance between the supporting piles on the two sides of the existing structure is larger than two times the diameter of the supporting piles. Compared with the prior art, row pile supporting and the reverse building method construction are combined, the advantages of the row pile supportingand the reverse building method construction are fully utilized, the structure is simple, safety and reliability are achieved, construction is convenient, and the manufacturing cost is low. Meanwhile,no anchor rope is used, an existing building and existing pipelines are protected while the foundation pit is protected, and good application prospects in foundation pit supporting in the fields suchas city municipal administration are achieved.
本发明提供了一种超大桩间距深基坑支护体系的施工方法，沿基坑的长度方向等间距施工两排支护桩，当支护桩的施工处有既有构筑物时，跨越既有构筑物后施工支护桩，支护桩施工完后，在支护桩顶部施工冠梁，然后在既有构筑物两侧的支护桩之间施工板墙，板墙采用逆法施工，板墙施工完成后，施工支撑系统。支护桩等间距施工的间距不大于支护桩桩径的2倍，既有构筑物两侧的支护桩间距大于支护桩桩径的2倍。与现有技术相比，通过将排桩支护和逆作法施工结合起来，充分利用二者的优点，结构简单、安全可靠、施工方便、造价低。同时避免使用锚索，对基坑保护的同时也实现了对既有建筑及管线的保护，在城市市政等领域的基坑支护中有较好的应用前景。
Construction method for super large pile distance deep foundation pit supporting system
The invention provides a construction method for a super large pile distance deep foundation pit supporting system. Two rows of supporting piles are constructed at equal distances in the length direction of a foundation pit; when an existing structure exists at the construction part of the supporting piles, the supporting piles are constructed after crossing of the existing structure; after the supporting piles are constructed, crown beams are constructed at the tops of the supporting piles, and then board walls are constructed between the supporting piles located on the two sides of the existing structure, wherein the board walls are constructed with a reverse method; and after the board walls are constructed, the supporting system is constructed. The distance of the equal distance construction of the supporting piles is not larger than two times the diameter of the supporting piles, and the distance between the supporting piles on the two sides of the existing structure is larger than two times the diameter of the supporting piles. Compared with the prior art, row pile supporting and the reverse building method construction are combined, the advantages of the row pile supportingand the reverse building method construction are fully utilized, the structure is simple, safety and reliability are achieved, construction is convenient, and the manufacturing cost is low. Meanwhile,no anchor rope is used, an existing building and existing pipelines are protected while the foundation pit is protected, and good application prospects in foundation pit supporting in the fields suchas city municipal administration are achieved.
本发明提供了一种超大桩间距深基坑支护体系的施工方法，沿基坑的长度方向等间距施工两排支护桩，当支护桩的施工处有既有构筑物时，跨越既有构筑物后施工支护桩，支护桩施工完后，在支护桩顶部施工冠梁，然后在既有构筑物两侧的支护桩之间施工板墙，板墙采用逆法施工，板墙施工完成后，施工支撑系统。支护桩等间距施工的间距不大于支护桩桩径的2倍，既有构筑物两侧的支护桩间距大于支护桩桩径的2倍。与现有技术相比，通过将排桩支护和逆作法施工结合起来，充分利用二者的优点，结构简单、安全可靠、施工方便、造价低。同时避免使用锚索，对基坑保护的同时也实现了对既有建筑及管线的保护，在城市市政等领域的基坑支护中有较好的应用前景。
Construction method for super large pile distance deep foundation pit supporting system
一种超大桩间距深基坑支护体系的施工方法
LYU JIAOJIAO (author) / GAO XUJUN (author) / ZHANG YOUKE (author) / LIU YUAN (author) / SU GUOXING (author) / LIU XINGWANG (author) / BAI HE (author) / GAN PENGSHAN (author) / QIN QINGYANG (author) / HAN WENBIN (author)
2020-07-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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