CN205348204U - 一种轻型井点降水系统 - Google Patents
一种轻型井点降水系统 Download PDFInfo
- Publication number
- CN205348204U CN205348204U CN201620132244.XU CN201620132244U CN205348204U CN 205348204 U CN205348204 U CN 205348204U CN 201620132244 U CN201620132244 U CN 201620132244U CN 205348204 U CN205348204 U CN 205348204U
- Authority
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- China
- Prior art keywords
- water
- well point
- well
- point pipe
- foundation ditch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000001556 precipitation Methods 0.000 title claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 239000004033 plastic Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nODVweCcgaGVpZ2h0PSc4NXB4JyB2aWV3Qm94PScwIDAgODUgODUnPgo8IS0tIEVORCBPRiBIRUFERVIgLS0+CjxyZWN0IHN0eWxlPSdvcGFjaXR5OjEuMDtmaWxsOiNGRkZGRkY7c3Ryb2tlOm5vbmUnIHdpZHRoPSc4NS4wJyBoZWlnaHQ9Jzg1LjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8dGV4dCB4PScxMy4zJyB5PSc1My42JyBjbGFzcz0nYXRvbS0wJyBzdHlsZT0nZm9udC1zaXplOjIzcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7dGV4dC1hbmNob3I6c3RhcnQ7ZmlsbDojRTg0MjM1JyA+SDwvdGV4dD4KPHRleHQgeD0nMjguMicgeT0nNjIuOScgY2xhc3M9J2F0b20tMCcgc3R5bGU9J2ZvbnQtc2l6ZToxNXB4O2ZvbnQtc3R5bGU6bm9ybWFsO2ZvbnQtd2VpZ2h0Om5vcm1hbDtmaWxsLW9wYWNpdHk6MTtzdHJva2U6bm9uZTtmb250LWZhbWlseTpzYW5zLXNlcmlmO3RleHQtYW5jaG9yOnN0YXJ0O2ZpbGw6I0U4NDIzNScgPjI8L3RleHQ+Cjx0ZXh0IHg9JzM1LjAnIHk9JzUzLjYnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6MjNweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5PPC90ZXh0Pgo8L3N2Zz4K O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002689 soil Substances 0.000 claims abstract description 6
- 239000003673 groundwater Substances 0.000 claims abstract description 4
- 239000007943 implant Substances 0.000 claims abstract description 4
- 238000005086 pumping Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract 3
- 241000893018 Armeria Species 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Abstract
一种轻型井点降水系统，包括基坑、井点管、集水总管、抽水设备和塑料密封膜，井点管为若干根，其沿基坑的四周或一侧有间距地植入其底部以下的含水层内；集水总管水平设置，其与井点管上部垂直相通；抽水设备从集水总管内抽取地下水，其特征在于：所述的井点管和集水总管均为塑料排水板；所述塑料密封膜覆盖在集水总管的上部，且位于基坑四周坑口外部的土层之下；所述的抽水设备为射流泵。本实用新型采用塑料排水板替代金属井点管和集水总管，并通过塑料密封膜实现井点密封，因此能够大幅度减少工程造价、节约施工成本、提高施工工效；同时采用射流泵替代真空泵，加强了抽水设备的工作稳定性、降低了维修费用、提高了使用寿命。
Description
技术领域
[0001]本实用新型涉及一种轻型井点降水系统，尤其涉及一种用塑料排水板替代井点管的轻型井点降水系统，属于降低地下水位技术领域。
背景技术
[0002]轻型井点降水是人工降低地下水位的一种方法。传统的轻型井点降水系统通常沿基坑四周或一侧将长7〜8米、直径为51〜63mm的井点管沉入深于基底的含水层内，井点管上部与集水总管连接，集水总管与抽水设备连接，抽水设备启动将地下水从井点管、集水总管内不断抽出，从而使地下水位降低到基坑底面以下。这种降水系统具有以下技术不足:一、工程造价高，井点管为无缝金属钢管，且底端需设置滤管;二、施工难度大，需在开挖基坑前用水压为400〜700kpa的高压水冲开泥土，然后利用井点管自重沉没于含水土层中，且井点管与土层之间要用洁净粗砂填实作为砂滤层，还要在距地面约I米左右的深度内改用粘土封口捣实，以保证井点有较高的真空度;三、抽水设备为真空栗，其故障率高、维修费用大、使用寿命短；四、工程完工后，还需拔除井点管，造成后期拆卸费用高。
发明内容
[0003]本实用新型的目的在于克服现有降水系统的技术不足，而提供一种用塑料排水板替代井点管和集水总管、用射流栗替代真空栗的轻型井点降水系统。
[0004]本实用新型釆取以下技术方案实施:一种轻型井点降水系统，包括基坑、井点管、集水总管、抽水设备和塑料密封膜，井点管为若干根，其沿基坑的四周或一侧有间距地植入其底部以下的含水层内；集水总管水平设置，其与井点管上部垂直相通;抽水设备从集水总管内抽取地下水，其特征在于:
[0005]所述的井点管和集水总管均为塑料排水板；
[0006]所述塑料密封膜覆盖在集水总管的上部，且位于基坑四周坑口外部的表面土层之下；
[0007]所述的抽水设备为射流栗。
[0008]本实用新型采用塑料排水板替代金属井点管和集水总管，并通过塑料密封膜实现井点密封，因此能够大幅度减少工程造价、节约施工成本、提高施工工效；同时采用射流栗替代真空栗，加强了抽水设备的工作稳定性、降低了维修费用、提高了使用寿命。
[0009]本实用新型具有设计合理、结构简单、成本低廉、节能环保、经济适用的显著优点。
附图说明
[0010]附图1为实用新型的结构原理示意图。
[0011]在附图1中:I基坑、2和3塑料排水板、4塑料连接三通、5射流栗、6塑料密封膜。具体实施方式
[0012]以下结合附图对本实用新型作进一步解释说明:
[0013]如附图1所示，塑料排水板2为若干条，其沿基坑I的四周或一侧有间距地植入其底部以下的含水层内；塑料排水板3水平设置，其通过塑料连接三通4与塑料排水板2上部垂直相通；塑料密封膜6覆盖在塑料排水板3的上部，且位于基坑I四周坑口外部的表面土层之下;抽水设备为射流栗6，射流栗6的入口与塑料排水板3相通，基坑I下部的地下水经塑料排水板2、水平设置的塑料排水板3，被射流栗6抽出。
[0014]本实用新型采用塑料排水板替代金属井点管和集水总管，采用塑料密封膜实现井点区域内的密封，并采用射流栗替代真空栗，形成一完整的轻型井点降水系统，可节省井点管与土层之间作为砂滤层用的若干洁净粗砂;节省距地面约I米左右深度的粘土封口层;节省由无缝钢管制成的井点管和金属滤管及其加工费用;可节约抽水设备的维修费用和运行成本，提高运行寿命。本实用新型在工程完工后，塑料排水板直接留在地下，无需拔出，因而又能节约工程后期的拆卸费用。
Claims (1)
1.一种轻型井点降水系统，包括基坑、井点管、集水总管、抽水设备和塑料密封膜，井点管为若干根，其沿基坑的四周或一侧有间距地植入其底部以下的含水层内；集水总管水平设置，其与井点管上部垂直相通;抽水设备从集水总管内抽取地下水，其特征在于: 所述的井点管和集水总管均为塑料排水板； 所述塑料密封膜覆盖在集水总管的上部，且位于基坑四周坑口外部的表面土层之下； 所述的抽水设备为射流栗。
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