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A platform for research: civil engineering, architecture and urbanism
Construction method and secant pile construction device
The invention provides a construction method and a secant pile construction device, and relates to the technical field of construction. The construction method is used for deep foundation pit supportconstruction in a sandy cobble stratum narrow space. The construction method comprises the following steps that S1, drilling secant form distribution is adopted on the premise of meeting support depthrequirements, and a drilling sequence is applied in an every-other-hole to from first-class holes; and S2, a positioning plate is placed on the upper portions of the first-class holes, and pre-buriedpile cores are inserted into the first-class holes by means of through holes of the positioning plate. The construction method is used for deep foundation pit support construction in the sandy cobblestratum narrow space, and the pre-buried pile cores occupy the secant positions of concrete piles formed by the first-class holes and other concrete piles so that the parts, where the concrete pilesare formed, of the first-class holes do not form the concrete piles, pile bodies do not need to be cut, concrete waste is reduced, the construction progress is accelerated, and the construction efficiency is improved.
本发明提供了一种施工方法及咬合桩施工装置，涉及建设施工的技术领域，该施工方法用于砂卵石地层狭窄空间深基坑支护施工，包括以下步骤：步骤S1：在满足支护深度要求前提下采用钻孔咬合形式布置，钻孔顺序按照钻一跳一方式施作，形成一类孔；步骤S2：将定位板放置在一类孔的上方，并将预埋桩芯经定位板的通孔插入到一类孔中；本发明提供的施工方法，该施工方法用于砂卵石地层狭窄空间深基坑支护施工，在一类孔形成的混凝土桩与其他混凝土柱咬合位置被预埋桩芯占据，使形成的混凝土柱的这部分未形成混凝土柱，不需要对桩体进行切割，减少混凝土的浪费，加快了施工进度，提高了施工效率较高。
Construction method and secant pile construction device
The invention provides a construction method and a secant pile construction device, and relates to the technical field of construction. The construction method is used for deep foundation pit supportconstruction in a sandy cobble stratum narrow space. The construction method comprises the following steps that S1, drilling secant form distribution is adopted on the premise of meeting support depthrequirements, and a drilling sequence is applied in an every-other-hole to from first-class holes; and S2, a positioning plate is placed on the upper portions of the first-class holes, and pre-buriedpile cores are inserted into the first-class holes by means of through holes of the positioning plate. The construction method is used for deep foundation pit support construction in the sandy cobblestratum narrow space, and the pre-buried pile cores occupy the secant positions of concrete piles formed by the first-class holes and other concrete piles so that the parts, where the concrete pilesare formed, of the first-class holes do not form the concrete piles, pile bodies do not need to be cut, concrete waste is reduced, the construction progress is accelerated, and the construction efficiency is improved.
本发明提供了一种施工方法及咬合桩施工装置，涉及建设施工的技术领域，该施工方法用于砂卵石地层狭窄空间深基坑支护施工，包括以下步骤：步骤S1：在满足支护深度要求前提下采用钻孔咬合形式布置，钻孔顺序按照钻一跳一方式施作，形成一类孔；步骤S2：将定位板放置在一类孔的上方，并将预埋桩芯经定位板的通孔插入到一类孔中；本发明提供的施工方法，该施工方法用于砂卵石地层狭窄空间深基坑支护施工，在一类孔形成的混凝土桩与其他混凝土柱咬合位置被预埋桩芯占据，使形成的混凝土柱的这部分未形成混凝土柱，不需要对桩体进行切割，减少混凝土的浪费，加快了施工进度，提高了施工效率较高。
Construction method and secant pile construction device
施工方法及咬合桩施工装置
XU CHAO (author) / XIE YAOWEN (author) / TIAN SHIQI (author) / YU XIANGYIN (author) / LAN XIN (author)
2020-07-31
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2021