A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Device for reducing dewatering and desanding rate of foundation pit
The invention discloses a device for reducing the dewatering and desanding rate of a foundation pit, which comprises a well casing part and a drainage part, a filter material layer is arranged between the well casing part and a dewatering well, the well casing part comprises a permeable pipe and a filter sleeve, the permeable pipe and the filter sleeve are both provided with filter holes, and the filter holes are communicated with the drainage part. The diameter of a filtering hole formed in the filtering sleeve is larger than that of a filtering hole formed in the pervious pipe, the pervious pipe is made of non-fine concrete, the pervious pipe is divided into a plurality of independent sections in the length direction of the pervious pipe, the end, facing the bottom of the dewatering well, of the filtering sleeve is of a closed structure, and the pervious pipe is sleeved with the filtering sleeve. The filter sleeve is used for preventing extrusion force generated in the filling process of the filter material layer from being transmitted to the permeable pipe. The filtering sleeve is arranged outside the water permeable pipe, extrusion force generated in the filling process of the filtering material layer can be prevented from being transmitted to the water permeable pipe, and therefore loosening/dislocation of the connecting portion of the water permeable pipe is avoided, and the sand filtering effect of the water permeable pipe in construction is ensured.
本发明公开了一种降低基坑降水除砂率的装置，包括井管部件和排水部件，井管部件与降水井之间还设置有滤料层，井管部件包括透水管和过滤套管，透水管和过滤套管上均设置有过滤孔，过滤套管上设置的过滤孔的直径大于透水管上设置的过滤孔的直径，透水管采用无砂混凝土制作，透水管沿其长度方向划分为若干独立的节段，过滤套管朝向降水井井底的一端设置为封闭结构，过滤套管套合在透水管的外部，过滤套管用于阻断滤料层填充过程中产生的挤压力传递至透水管。本发明在透水管外部设置过滤套管，可阻断滤料层填充过程中产生的挤压力传递至透水管，从而避免了透水管连接部位产生松脱/错位，确保了本发明在实施施工使用中过滤砂粒的效果。
Device for reducing dewatering and desanding rate of foundation pit
The invention discloses a device for reducing the dewatering and desanding rate of a foundation pit, which comprises a well casing part and a drainage part, a filter material layer is arranged between the well casing part and a dewatering well, the well casing part comprises a permeable pipe and a filter sleeve, the permeable pipe and the filter sleeve are both provided with filter holes, and the filter holes are communicated with the drainage part. The diameter of a filtering hole formed in the filtering sleeve is larger than that of a filtering hole formed in the pervious pipe, the pervious pipe is made of non-fine concrete, the pervious pipe is divided into a plurality of independent sections in the length direction of the pervious pipe, the end, facing the bottom of the dewatering well, of the filtering sleeve is of a closed structure, and the pervious pipe is sleeved with the filtering sleeve. The filter sleeve is used for preventing extrusion force generated in the filling process of the filter material layer from being transmitted to the permeable pipe. The filtering sleeve is arranged outside the water permeable pipe, extrusion force generated in the filling process of the filtering material layer can be prevented from being transmitted to the water permeable pipe, and therefore loosening/dislocation of the connecting portion of the water permeable pipe is avoided, and the sand filtering effect of the water permeable pipe in construction is ensured.
本发明公开了一种降低基坑降水除砂率的装置，包括井管部件和排水部件，井管部件与降水井之间还设置有滤料层，井管部件包括透水管和过滤套管，透水管和过滤套管上均设置有过滤孔，过滤套管上设置的过滤孔的直径大于透水管上设置的过滤孔的直径，透水管采用无砂混凝土制作，透水管沿其长度方向划分为若干独立的节段，过滤套管朝向降水井井底的一端设置为封闭结构，过滤套管套合在透水管的外部，过滤套管用于阻断滤料层填充过程中产生的挤压力传递至透水管。本发明在透水管外部设置过滤套管，可阻断滤料层填充过程中产生的挤压力传递至透水管，从而避免了透水管连接部位产生松脱/错位，确保了本发明在实施施工使用中过滤砂粒的效果。
Device for reducing dewatering and desanding rate of foundation pit
一种降低基坑降水除砂率的装置
WEN XUESONG (author) / SONG BIN (author) / WEI QIANJIANG (author) / LIU GUANFU (author) / PAN GANG (author) / ZHOU YI (author) / DENG LONGHUANG (author) / LI SHENGSONG (author) / ZHAO JIANXUE (author) / YUAN NEIMENG (author)
2024-07-19
Patent
Electronic Resource
Chinese
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