Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Combined blasting construction method for large-diameter deep foundation pit through reverse construction method
The invention discloses a combined blasting construction method for a large-diameter deep foundation pit through a reverse construction method. The combined blasting construction method comprises the following steps that S1, the actual depth of a blasting rock layer and the actual blasting depth of each section of a blasting area are determined; S2, based on the actual depth of the blasting rock layer and the actual depth of each section of blasting in the blasting area, zonal blasting design is conducted, and the center of the deep foundation pit serves as a base point and extends towards the outer side of the foundation pit to be sequentially divided into a V-shaped groove center blasting area, a deep hole blasting area, a shallow hole blasting area and a static blasting area; S3, after underground diaphragm wall construction and earthwork construction of the deep foundation pit are completed to a rock layer, blasting construction is conducted on the V-shaped groove center blasting area; S4, after construction of the V-shaped groove center blasting area is completed, subarea construction is conducted, and construction is conducted according to the sequence of the deep hole blasting area, the shallow hole blasting area and the static blasting area; S5, after the static blasting area of the section is constructed to the designed elevation, a lining wall is poured; and S6, after construction of the lining wall of the section is completed, static blasting area construction of the next section is conducted.
本发明公开了一种逆作法大直径深基坑组合爆破施工方法，包括如下步骤：S1.确定爆破岩石层的实际深度及爆破区每节爆破的实际深度；S2.基于爆破岩石层的实际深度和爆破区每节爆破的实际深度，进行分区爆破设计，自深基坑中心为基点向基坑外侧延伸依次划分为V字型沟槽中心爆破区、深孔爆破区、浅孔爆破区及静态爆破区；S3.在深基坑完成地下连续墙施工和土方施工至岩石层后，对V字型沟槽中心爆破区进行爆破施工；S4.V字型沟槽中心爆破区施工完成后，进行分区施工，施工顺序按照深孔爆破区、浅孔爆破区以及静态爆破区依次顺序施工；S5.将本节段的静态爆破区施工至设计标高后，浇筑内衬墙；S6.当本节段内衬墙施工完毕后，再进行下一节段的静态爆破区施工。
Combined blasting construction method for large-diameter deep foundation pit through reverse construction method
The invention discloses a combined blasting construction method for a large-diameter deep foundation pit through a reverse construction method. The combined blasting construction method comprises the following steps that S1, the actual depth of a blasting rock layer and the actual blasting depth of each section of a blasting area are determined; S2, based on the actual depth of the blasting rock layer and the actual depth of each section of blasting in the blasting area, zonal blasting design is conducted, and the center of the deep foundation pit serves as a base point and extends towards the outer side of the foundation pit to be sequentially divided into a V-shaped groove center blasting area, a deep hole blasting area, a shallow hole blasting area and a static blasting area; S3, after underground diaphragm wall construction and earthwork construction of the deep foundation pit are completed to a rock layer, blasting construction is conducted on the V-shaped groove center blasting area; S4, after construction of the V-shaped groove center blasting area is completed, subarea construction is conducted, and construction is conducted according to the sequence of the deep hole blasting area, the shallow hole blasting area and the static blasting area; S5, after the static blasting area of the section is constructed to the designed elevation, a lining wall is poured; and S6, after construction of the lining wall of the section is completed, static blasting area construction of the next section is conducted.
本发明公开了一种逆作法大直径深基坑组合爆破施工方法，包括如下步骤：S1.确定爆破岩石层的实际深度及爆破区每节爆破的实际深度；S2.基于爆破岩石层的实际深度和爆破区每节爆破的实际深度，进行分区爆破设计，自深基坑中心为基点向基坑外侧延伸依次划分为V字型沟槽中心爆破区、深孔爆破区、浅孔爆破区及静态爆破区；S3.在深基坑完成地下连续墙施工和土方施工至岩石层后，对V字型沟槽中心爆破区进行爆破施工；S4.V字型沟槽中心爆破区施工完成后，进行分区施工，施工顺序按照深孔爆破区、浅孔爆破区以及静态爆破区依次顺序施工；S5.将本节段的静态爆破区施工至设计标高后，浇筑内衬墙；S6.当本节段内衬墙施工完毕后，再进行下一节段的静态爆破区施工。
Combined blasting construction method for large-diameter deep foundation pit through reverse construction method
逆作法大直径深基坑组合爆破施工方法
MENG QINGLI (Autor:in) / CUI YUYIN (Autor:in) / CHENG PEICHUN (Autor:in) / DENG MEILONG (Autor:in) / PEI SHENGXU (Autor:in) / YU WENXIA (Autor:in) / ZHAO YAN (Autor:in) / ZHANG XIANGNING (Autor:in) / WANG YOUFA (Autor:in) / XIAO HUIRU (Autor:in)
18.06.2021
Patent
Elektronische Ressource
Chinesisch
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