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A platform for research: civil engineering, architecture and urbanism
Foundation pit dewatering system and foundation pit dewatering method for water-rich sandy gravel stratum
The invention discloses a foundation pit dewatering system and a foundation pit dewatering method for a water-rich sandy gravel stratum. The foundation pit dewatering system comprises a first pipe body, a second pipe body, a third pipe body and a filtering layer. The first pipe body is matched with the wall of the dewatering well; first filter holes are formed in the first pipe body; the second pipe body is arranged in the first pipe body; a second filter hole is formed in the second pipe body; the aperture of the second filter holes is smaller than that of the first filter holes; the third pipe body is arranged in the second pipe body; a third filter hole is formed in the third pipe body, and the aperture of the third filter hole is smaller than or equal to that of the second filter hole; the filter layer comprises a filter material filled between the second pipe body and the third pipe body. Therefore, particulate matters with larger sizes are intercepted through the first pipe body, and particulate matters with smaller sizes are intercepted through the second filter holes, the filter layer and the third filter holes, so that blockage is effectively avoided, and the drainage efficiency is ensured. The first pipe body can prevent the second pipe body, the third pipe body and the filtering layer from being damaged due to loosening of the sandy gravel stratum, and the stability and safety of rainfall are guaranteed.
本发明公开了基坑降水系统以及富水砂卵石地层的基坑降水方法。基坑降水系统包括第一管体、第二管体、第三管体和过滤层；第一管体与降水井井壁适配；第一管体上设有第一滤孔；第二管体设于第一管体的内部；第二管体上设有第二滤孔；第二滤孔的孔径＜第一滤孔的孔径；第三管体设于第二管体的内部；第三管体上设有第三滤孔，第三滤孔的孔径≤第二滤孔的孔径；过滤层包括填充于第二管体和第三管体之间的滤料。由此，通过第一管体拦截尺寸较大的颗粒物，利用第二滤孔、过滤层和第三滤孔拦截尺寸较小的颗粒物，从而有效避免堵塞，确保排水效率。第一管体可以防止砂卵石地层松动造成第二管体、第三管体和过滤层损坏，确保降水的稳定性和安全性。
Foundation pit dewatering system and foundation pit dewatering method for water-rich sandy gravel stratum
The invention discloses a foundation pit dewatering system and a foundation pit dewatering method for a water-rich sandy gravel stratum. The foundation pit dewatering system comprises a first pipe body, a second pipe body, a third pipe body and a filtering layer. The first pipe body is matched with the wall of the dewatering well; first filter holes are formed in the first pipe body; the second pipe body is arranged in the first pipe body; a second filter hole is formed in the second pipe body; the aperture of the second filter holes is smaller than that of the first filter holes; the third pipe body is arranged in the second pipe body; a third filter hole is formed in the third pipe body, and the aperture of the third filter hole is smaller than or equal to that of the second filter hole; the filter layer comprises a filter material filled between the second pipe body and the third pipe body. Therefore, particulate matters with larger sizes are intercepted through the first pipe body, and particulate matters with smaller sizes are intercepted through the second filter holes, the filter layer and the third filter holes, so that blockage is effectively avoided, and the drainage efficiency is ensured. The first pipe body can prevent the second pipe body, the third pipe body and the filtering layer from being damaged due to loosening of the sandy gravel stratum, and the stability and safety of rainfall are guaranteed.
本发明公开了基坑降水系统以及富水砂卵石地层的基坑降水方法。基坑降水系统包括第一管体、第二管体、第三管体和过滤层；第一管体与降水井井壁适配；第一管体上设有第一滤孔；第二管体设于第一管体的内部；第二管体上设有第二滤孔；第二滤孔的孔径＜第一滤孔的孔径；第三管体设于第二管体的内部；第三管体上设有第三滤孔，第三滤孔的孔径≤第二滤孔的孔径；过滤层包括填充于第二管体和第三管体之间的滤料。由此，通过第一管体拦截尺寸较大的颗粒物，利用第二滤孔、过滤层和第三滤孔拦截尺寸较小的颗粒物，从而有效避免堵塞，确保排水效率。第一管体可以防止砂卵石地层松动造成第二管体、第三管体和过滤层损坏，确保降水的稳定性和安全性。
Foundation pit dewatering system and foundation pit dewatering method for water-rich sandy gravel stratum
基坑降水系统以及富水砂卵石地层的基坑降水方法
ZENG YONG (author) / SU CHAO (author) / QIN ZHANGYUE (author) / LI MENGRAN (author) / SHUAI BOHAN (author) / SUN MINGHAO (author) / ZHANG CHUNGU (author) / XU ZHIHANG (author) / XU LANYUE (author) / ZENG ZIYUE (author)
2023-01-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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