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A platform for research: civil engineering, architecture and urbanism
Precipitation inclined shaft in deep foundation pit and construction method of precipitation inclined shaft
The invention discloses a precipitation inclined shaft in a deep foundation pit and a construction method of the precipitation inclined shaft. A shaft pipe is arranged in the precipitation inclined shaft, a filling layer is arranged between the outer wall of the shaft pipe and the inner wall of the precipitation inclined shaft, the middle-lower section of the filling layer is a filter section, andthe upper section of the filling layer is a sealing section; the bottom end of the shaft pipe is closed, an opening is formed in the shaft wall of the shaft pipe of the filter section, and a 60-meshor 80-mesh filter screen is wound outside the shaft pipe; the filter section is filled with gravel with the particle size of 3-7 mm; the sealing section is filled with clay, and the filling degree isnot lower than 90%; centering supporting legs in three directions are arranged on the lower section, the middle section and the upper section of the shaft pipe in the circumferential direction, the interval between every two centering supporting legs is 120 degrees, a centering support is fixed to the outer wall of the shaft pipe wound with the filter screen through screws, and one supporting legfaces the position over the other supporting leg; and the included angle between the precipitation inclined shaft and the vertical direction is 30-70 degrees. The precipitation inclined shaft and theconstruction method thereof have the beneficial effects that the lower space around the foundation pit is fully utilized, the problem that the ground surface construction space is insufficient is thoroughly solved, and the construction risk of damaging underground facilities such as pipelines and structures is avoided; and the safety and the stability of foundation pit engineering are effectivelyimproved.
一种深基坑内降水斜井内设置有井管，所述井管外壁与降水斜井内壁之间设置有填充层，中下段填充层为过滤段，上段填充层为密封段；所述井管底端收口且过滤段井管井壁上设有开孔，所述井管外缠裹60或80目滤网；所述过滤段采用3至7mm粒径碎石充填；密封段采用黏土充填，填充度均不低于90%；在井管下段、中段及上段沿圆周方向设置有三个方向的对中支脚且两两对中支脚间隔120°，所述对中支架采用螺丝固定在缠裹滤网的井管外壁上，并使得其中一个支脚朝向正上方；所述降水斜井与竖直方向的夹角为30°至70°。有益效果：充分利用了基坑周边的下部空间，彻底解决了地表施工空间不足的问题，规避了破坏管线、构筑物等地下设施的施工风险；并有效提高了基坑工程的安全性、稳定性。
Precipitation inclined shaft in deep foundation pit and construction method of precipitation inclined shaft
The invention discloses a precipitation inclined shaft in a deep foundation pit and a construction method of the precipitation inclined shaft. A shaft pipe is arranged in the precipitation inclined shaft, a filling layer is arranged between the outer wall of the shaft pipe and the inner wall of the precipitation inclined shaft, the middle-lower section of the filling layer is a filter section, andthe upper section of the filling layer is a sealing section; the bottom end of the shaft pipe is closed, an opening is formed in the shaft wall of the shaft pipe of the filter section, and a 60-meshor 80-mesh filter screen is wound outside the shaft pipe; the filter section is filled with gravel with the particle size of 3-7 mm; the sealing section is filled with clay, and the filling degree isnot lower than 90%; centering supporting legs in three directions are arranged on the lower section, the middle section and the upper section of the shaft pipe in the circumferential direction, the interval between every two centering supporting legs is 120 degrees, a centering support is fixed to the outer wall of the shaft pipe wound with the filter screen through screws, and one supporting legfaces the position over the other supporting leg; and the included angle between the precipitation inclined shaft and the vertical direction is 30-70 degrees. The precipitation inclined shaft and theconstruction method thereof have the beneficial effects that the lower space around the foundation pit is fully utilized, the problem that the ground surface construction space is insufficient is thoroughly solved, and the construction risk of damaging underground facilities such as pipelines and structures is avoided; and the safety and the stability of foundation pit engineering are effectivelyimproved.
一种深基坑内降水斜井内设置有井管，所述井管外壁与降水斜井内壁之间设置有填充层，中下段填充层为过滤段，上段填充层为密封段；所述井管底端收口且过滤段井管井壁上设有开孔，所述井管外缠裹60或80目滤网；所述过滤段采用3至7mm粒径碎石充填；密封段采用黏土充填，填充度均不低于90%；在井管下段、中段及上段沿圆周方向设置有三个方向的对中支脚且两两对中支脚间隔120°，所述对中支架采用螺丝固定在缠裹滤网的井管外壁上，并使得其中一个支脚朝向正上方；所述降水斜井与竖直方向的夹角为30°至70°。有益效果：充分利用了基坑周边的下部空间，彻底解决了地表施工空间不足的问题，规避了破坏管线、构筑物等地下设施的施工风险；并有效提高了基坑工程的安全性、稳定性。
Precipitation inclined shaft in deep foundation pit and construction method of precipitation inclined shaft
一种深基坑内降水斜井及其施工方法
LIU WENBIN (author) / MA JIAN (author) / FENG KEMING (author) / LI JUNFENG (author) / SHANG CHUANCHUAN (author) / LI FANGNING (author) / YAN WEI (author) / FU WENBIN (author) / HU HAIJIANG (author)
2020-10-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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