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A platform for research: civil engineering, architecture and urbanism
Construction method for hard rock deep foundation pit in limited blasting area
The invention discloses a hard rock deep foundation pit construction method in a limited blasting area, which comprises the following steps of: cleaning accumulated soil above the top surface of hard rock in an excavation area, and constructing a soil supporting structure on the wall surface of an excavated deep foundation pit; the deep foundation pit is layered, specifically, the deep foundation pit soil body in the excavation area is divided into N layers of mixed soil bodies and M layers of hard rock-soil bodies from top to bottom, each layer of mixed soil body comprises accumulated soil and hard rock, and each layer of hard rock-soil body is hard rock; excavating N layers of mixed layer soil bodies: excavating the first layer to the Nth layer of the mixed layer soil bodies layer by layer from top to bottom according to the excavating step of each layer of the mixed layer soil bodies; and M layers of hard rock-soil bodies are excavated, specifically, excavation of the first layer to the Mth layer of the hard rock-soil bodies is completed layer by layer from top to bottom according to the excavation step of each layer of hard rock-soil bodies. According to the construction method of the hard rock deep foundation pit, the time for constructing the hard rock deep foundation pit in the limited blasting area is shortened, the construction cost is saved, and the construction efficiency is improved.
本发明公开了一种限制爆破区域内硬岩深基坑施工方法，包括以下步骤：清理开挖区域内硬岩顶面以上的积土，在已开挖深基坑壁面上施工土质支护结构；深基坑分层步骤：将开挖区域内的深基坑土体由上至下划分为N层混合土体和M层硬岩土体，每层混合土体包括积土和硬岩，每层硬岩土体为硬岩；N层混合层土体开挖步骤：混合层土体按照每层混合层土体开挖步骤由上至下逐层完成第一层至第N层土体的开挖；M层硬岩土体开挖步骤：硬岩土体按照每层硬岩土体开挖步骤由上至下逐层完成第一层至第M层土体的开挖。本发明硬岩深基坑的施工方法缩短在限制爆破区域内进行硬岩深基坑施工的时间，节省施工所用成本，提升施工效率。
Construction method for hard rock deep foundation pit in limited blasting area
The invention discloses a hard rock deep foundation pit construction method in a limited blasting area, which comprises the following steps of: cleaning accumulated soil above the top surface of hard rock in an excavation area, and constructing a soil supporting structure on the wall surface of an excavated deep foundation pit; the deep foundation pit is layered, specifically, the deep foundation pit soil body in the excavation area is divided into N layers of mixed soil bodies and M layers of hard rock-soil bodies from top to bottom, each layer of mixed soil body comprises accumulated soil and hard rock, and each layer of hard rock-soil body is hard rock; excavating N layers of mixed layer soil bodies: excavating the first layer to the Nth layer of the mixed layer soil bodies layer by layer from top to bottom according to the excavating step of each layer of the mixed layer soil bodies; and M layers of hard rock-soil bodies are excavated, specifically, excavation of the first layer to the Mth layer of the hard rock-soil bodies is completed layer by layer from top to bottom according to the excavation step of each layer of hard rock-soil bodies. According to the construction method of the hard rock deep foundation pit, the time for constructing the hard rock deep foundation pit in the limited blasting area is shortened, the construction cost is saved, and the construction efficiency is improved.
本发明公开了一种限制爆破区域内硬岩深基坑施工方法，包括以下步骤：清理开挖区域内硬岩顶面以上的积土，在已开挖深基坑壁面上施工土质支护结构；深基坑分层步骤：将开挖区域内的深基坑土体由上至下划分为N层混合土体和M层硬岩土体，每层混合土体包括积土和硬岩，每层硬岩土体为硬岩；N层混合层土体开挖步骤：混合层土体按照每层混合层土体开挖步骤由上至下逐层完成第一层至第N层土体的开挖；M层硬岩土体开挖步骤：硬岩土体按照每层硬岩土体开挖步骤由上至下逐层完成第一层至第M层土体的开挖。本发明硬岩深基坑的施工方法缩短在限制爆破区域内进行硬岩深基坑施工的时间，节省施工所用成本，提升施工效率。
Construction method for hard rock deep foundation pit in limited blasting area
一种限制爆破区域内硬岩深基坑施工方法
MIAO YUTAO (author) / LIANG XIN (author) / WANG XIN (author) / LU PEIPEI (author) / QU JING (author) / ZHANG ZHIYONG (author)
2022-04-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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