A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Arch support foundation pit blasting excavation structure and method
The invention discloses a skewback foundation pit blasting excavation structure and method.The skewback foundation pit blasting excavation structure comprises an existing foundation pit slope platform, the existing foundation pit slope platform comprises a left bank skewback and a right bank skewback which are arranged in a spaced mode, and the left bank skewback and the right bank skewback are each provided with a step to be blasted; a plurality of blast holes are formed in the step to be blasted; the number of the charging structures is consistent with that of the blast holes, the charging structures and the blast holes are arranged in a one-to-one correspondence mode, and the corresponding blast holes are filled with the charging structures; wherein the blast holes are obliquely formed in the to-be-blasted step relative to the bottom face of the to-be-blasted step, and the blast holes are formed in the to-be-blasted step at intervals. According to the method, the blast hole is formed in the existing foundation pit, the specific forming structure of the blast hole is controlled, the blasting excavation effect of the blast hole is improved, the engineering construction quality is improved, and reference is provided for a similar construction mode.
本发明公开了一种拱座基坑爆破开挖结构及方法，所述拱座基坑爆破开挖结构包括既有基坑边坡平台，所述既有基坑边坡平台包括间隔设置的左岸拱座和右岸拱座，所述左岸拱座和所述右岸拱座上均设置有待爆破台阶，所述待爆破台阶上开设有多个炮孔；多个装药结构，所述装药结构与所述炮孔的数量一致且一一对应设置，各所述装药结构填塞于对应的所述炮孔中；其中，各所述炮孔相较于所述待爆破台阶的底面倾斜设置于待爆破台阶内，且各所述炮孔之间间隔设置。本发明通过在既有基坑上设置炮孔，并控制炮孔的具体形成结构，提升了炮孔的爆破开挖效果，提升工程施工质量，为类似的施工模式提供参考。
Arch support foundation pit blasting excavation structure and method
The invention discloses a skewback foundation pit blasting excavation structure and method.The skewback foundation pit blasting excavation structure comprises an existing foundation pit slope platform, the existing foundation pit slope platform comprises a left bank skewback and a right bank skewback which are arranged in a spaced mode, and the left bank skewback and the right bank skewback are each provided with a step to be blasted; a plurality of blast holes are formed in the step to be blasted; the number of the charging structures is consistent with that of the blast holes, the charging structures and the blast holes are arranged in a one-to-one correspondence mode, and the corresponding blast holes are filled with the charging structures; wherein the blast holes are obliquely formed in the to-be-blasted step relative to the bottom face of the to-be-blasted step, and the blast holes are formed in the to-be-blasted step at intervals. According to the method, the blast hole is formed in the existing foundation pit, the specific forming structure of the blast hole is controlled, the blasting excavation effect of the blast hole is improved, the engineering construction quality is improved, and reference is provided for a similar construction mode.
本发明公开了一种拱座基坑爆破开挖结构及方法，所述拱座基坑爆破开挖结构包括既有基坑边坡平台，所述既有基坑边坡平台包括间隔设置的左岸拱座和右岸拱座，所述左岸拱座和所述右岸拱座上均设置有待爆破台阶，所述待爆破台阶上开设有多个炮孔；多个装药结构，所述装药结构与所述炮孔的数量一致且一一对应设置，各所述装药结构填塞于对应的所述炮孔中；其中，各所述炮孔相较于所述待爆破台阶的底面倾斜设置于待爆破台阶内，且各所述炮孔之间间隔设置。本发明通过在既有基坑上设置炮孔，并控制炮孔的具体形成结构，提升了炮孔的爆破开挖效果，提升工程施工质量，为类似的施工模式提供参考。
Arch support foundation pit blasting excavation structure and method
拱座基坑爆破开挖结构及方法
XU HAO (author) / LIN JUNMIN (author) / ZHOU GUANGHUI (author) / JIA WENBING (author) / JIAO KAILI (author) / LI XIAN (author)
2023-05-09
Patent
Electronic Resource
Chinese
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