CN102720266A - Siphon type dredging device for water storage and drainage tunnel - Google Patents
Siphon type dredging device for water storage and drainage tunnel Download PDFInfo
- Publication number
- CN102720266A CN102720266A CN2012101998567A CN201210199856A CN102720266A CN 102720266 A CN102720266 A CN 102720266A CN 2012101998567 A CN2012101998567 A CN 2012101998567A CN 201210199856 A CN201210199856 A CN 201210199856A CN 102720266 A CN102720266 A CN 102720266A
- Authority
- CN
- China
- Prior art keywords
- storage
- drainage
- siphon
- tunnel
- drainage tunnel
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 11
- 239000010865 sewage Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000009991 scouring Methods 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Sewage (AREA)
Abstract
本发明公开了一种用于对蓄排水隧道淤积物清理的虹吸式蓄排水隧道清淤装置，主要包括入流竖井、蓄排水隧道、消力井、虹吸管和设置在蓄排水隧道末端的排淤池及排污泵，蓄排水隧道倾斜贯通设置在各个入流竖井之间，入流竖井连通下水道井口和蓄排水隧道，消力井设置在蓄排水隧道底部对应入流竖井的位置，相邻消力井之间设置有虹吸管。本发明的虹吸式蓄排水隧道清淤装置利用虹吸原理实现了无动力清理地下蓄排水隧道内的淤积沉淀物同时达到节能和入流消能的技术效果。
The invention discloses a siphon type storage and drainage tunnel dredging device for cleaning the silt of the storage and drainage tunnel, which mainly includes an inflow shaft, a storage and drainage tunnel, a stilling well, a siphon pipe and a silt discharge pool arranged at the end of the storage and drainage tunnel and sewage pumps, the storage and drainage tunnels are installed obliquely between the inflow shafts, the inflow shafts connect the sewer wellhead and the storage and drainage tunnels, the stilling wells are set at the bottom of the storage and drainage tunnels corresponding to the inflow shafts, and the adjacent stilling wells are arranged There is a siphon. The siphon type storage and drainage tunnel dredging device of the present invention utilizes the siphon principle to realize the non-powered cleaning of the silt deposits in the underground storage and drainage tunnel while achieving the technical effects of energy saving and inflow energy dissipation.
Description
技术领域 technical field
本发明涉及环境保护技术领域，尤其涉及一种用于城市防汛的虹吸式蓄排水隧道清淤装置。The invention relates to the technical field of environmental protection, in particular to a siphon type storage and drainage tunnel dredging device for urban flood control.
背景技术 Background technique
由于我国城市防汛排水系统的规划和建设的滞后，导致我国大中城市普遍存在雨季内涝的问题。当短时强降雨引起的内涝现象发生时，地表径流携带大量的污染物进入城市水体，导致水体水质受到严重污染，给城市带来巨大的经济损失和严重的生态破坏。Due to the lag in the planning and construction of urban flood control and drainage systems in my country, the problem of waterlogging in the rainy season is common in large and medium-sized cities in my country. When the waterlogging phenomenon caused by short-term heavy rainfall occurs, the surface runoff carries a large amount of pollutants into the urban water body, resulting in serious pollution of the water quality, bringing huge economic losses and serious ecological damage to the city.
为解决城市内涝问题，惯常的思路是扩建或新建排水管网及雨水处理厂站。但是，受工程用地、道路、建筑物和地下管线等多方面因素的制约，扩建或新建管网和雨水处理厂的实施难度很大。针对我国目前大中城市人口数量大、用地数量少、建筑和街道以及管线布局复杂等特点，通过高效利用深层地下空间，采用具有调蓄容量可提升、对环境影响小、可分散和集中处理等特点的深层地下蓄排水隧道，地下蓄排水隧道多建设于城市深层地下空间，隧道直径及埋深均较大，可调蓄数万甚至数十万平方米的雨污水。In order to solve the problem of urban waterlogging, the usual idea is to expand or build new drainage pipe networks and rainwater treatment plants. However, restricted by many factors such as project land, roads, buildings and underground pipelines, it is very difficult to expand or build new pipeline networks and rainwater treatment plants. In view of the large population, small amount of land, and complex layout of buildings, streets, and pipelines in my country's large and medium-sized cities, through efficient use of deep underground space, it adopts a system that can increase the storage capacity, has little impact on the environment, and can be distributed and centralized. The characteristic deep underground storage and drainage tunnels, underground storage and drainage tunnels are mostly built in the deep underground space of cities, with large tunnel diameters and buried depths, which can store tens of thousands or even hundreds of thousands of square meters of rainwater and sewage.
但是，由于蓄排水隧道的运行是以入流、调蓄和排水为主要程序，隧道埋深较大，在隧道水流入流时存在入流水流落水高度较大对隧道底部形成较大冲击负荷，易引起构筑物破坏、隧道水流产生水击水锤等不利现象，同时，雨污水中常携带有大量悬浮颗粒物，在隧道的入流、调蓄和排水过程中逐渐沉积于隧道内形成淤泥影响隧道的调蓄能力。However, since the operation of the storage and drainage tunnel is based on inflow, storage and drainage as the main procedures, the buried depth of the tunnel is relatively large, and when the tunnel water flows into the tunnel, there is a large impact load on the bottom of the tunnel due to the high inflow water falling height, which is likely to cause structural damage. At the same time, rainwater and sewage often carry a large amount of suspended particles, which are gradually deposited in the tunnel during the inflow, storage and drainage processes of the tunnel to form silt, which affects the storage capacity of the tunnel.
针对地下隧道内的淤积问题，尚无良好的技术及工程解决方案。国外已建的地下调蓄隧道系统多采用人工清淤的方案，在隧道闲置期安排清淤人员及设备进入隧道清楚淤积的沉积物，该办法由于隧道埋深较大，人员进入隧道前需要进行长时间的通风，考虑隧道内长时间缺氧产生的多种有毒有害气体，清淤人员工作时还需配备氧气设备，增加了人员的负重。也有部分项目通过建设冲淤沟提高断面水流速度或者在隧道闲置期采用外加水流管道冲淤等办法进行隧道清淤，但冲淤沟易受淤积物板结的影响，冲淤效果较差。而外加冲淤管道需要向隧道内引入大量的外加水源，且需消耗较多的电能，这些缺陷的存在限制了该方法的应用。There is no good technical and engineering solution to the siltation problem in underground tunnels. Most of the underground storage tunnel systems built in foreign countries adopt the scheme of manual dredging. During the idle period of the tunnel, dredging personnel and equipment are arranged to enter the tunnel to clear the deposited sediment. Due to the large buried depth of the tunnel, personnel need to carry out dredging before entering the tunnel. Long-term ventilation, considering the various toxic and harmful gases produced by long-term lack of oxygen in the tunnel, dredging personnel need to be equipped with oxygen equipment when working, which increases the burden of personnel. There are also some projects that build scour-silting ditches to increase the water flow velocity at the cross-section or use methods such as adding water flow pipes to scour the tunnels during the idle period to desilt the tunnels. However, scour-silt ditches are easily affected by sediment compaction, and the scour-silt effect is poor. However, the external scouring and silting pipeline needs to introduce a large amount of external water source into the tunnel, and consumes a lot of electric energy. The existence of these defects limits the application of this method.
因此，隧道淤积、入流消能成为城市地下调蓄隧道系统应用的限制性因素和亟待解决的问题，故本领域的技术人员致力于开发一种蓄排水隧道清淤系统以解决上述问题。Therefore, tunnel silting and inflow energy dissipation have become limiting factors and problems to be solved urgently for the application of urban underground storage tunnel systems. Therefore, those skilled in the art are committed to developing a storage and drainage tunnel dredging system to solve the above problems.
发明内容 Contents of the invention
有鉴于现有技术的上述缺陷，本发明所要解决的技术问题是提供一种虹吸式蓄排水隧道清淤装置，实现无动力清理地下蓄排水隧道内的淤积沉淀物同时达到节能和入流消能的技术效果。In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a siphon type storage and drainage tunnel dredging device, which realizes unpowered cleaning of the silt deposits in the underground storage and drainage tunnel while achieving energy saving and inflow energy dissipation. technical effect.
为实现上述目的，本发明提供了一种虹吸式蓄排水隧道清淤装置，包括设置在所述蓄排水隧道的末端的排淤池及排污泵；所述清淤系统还包括：若干入流竖井，所述蓄排水隧道倾斜贯通设置在多个所述入流竖井之间，所述蓄排水隧道底部对应所述入流竖井处设置有消力井，相邻所述消力井之间设置有虹吸管。In order to achieve the above object, the present invention provides a siphon type storage and drainage tunnel dredging device, including a silt discharge tank and a sewage pump arranged at the end of the storage and drainage tunnel; the dredging system also includes: several inflow shafts, The storage and drainage tunnel is obliquely arranged between a plurality of inflow shafts, a stilling well is provided at the bottom of the storage and drainage tunnel corresponding to the inflow shafts, and a siphon is provided between adjacent stilling wells.
较优的，所述蓄排水隧道上设置有冲淤沟。Preferably, scour-silting ditches are arranged on the storage and drainage tunnel.
较优的，所述冲淤沟为两条，横截面为倒三角形。Preferably, there are two scour-silting ditches, and the cross-section is an inverted triangle.
较优的，所述虹吸管上设置有逆止阀。Preferably, the siphon is provided with a check valve.
较优的，所述虹吸管的两端头设置有吸泥头。Preferably, both ends of the siphon are provided with suction heads.
本发明的有益效果是：The beneficial effects of the present invention are:
本发明的虹吸式蓄排水隧道清淤装置，利用虹吸原理，由于上述结构巧妙设计虹吸管、蓄排水隧道和消力井，雨污水通过入流竖井冲入蓄排水隧道底部的消力井，通过设置的消力井来克服雨污水由于高度差产生的冲击负荷及水击水锤现象，同时沉积雨污水中的淤泥。设置的虹吸管使消力井之间或消力井与最总的排淤池之间产生虹吸现象，实现无动力、节能、方便快捷的清理地下蓄排水隧道内的淤积沉淀物的目的。加设吸泥头、逆止阀和冲淤沟进一步强化了清淤系统的清淤效果。The siphon type storage and drainage tunnel dredging device of the present invention utilizes the principle of siphon, and due to the ingenious design of the siphon pipe, the storage and drainage tunnel and the stilling well of the above-mentioned structure, the rainwater and sewage rush into the stilling well at the bottom of the storage and drainage tunnel through the inflow shaft, and pass through the set The stilling well is used to overcome the impact load and water hammer phenomenon caused by the height difference of the rainwater and sewage, and at the same time deposit the silt in the rainwater. The set siphon causes a siphon phenomenon between the stilling wells or between the stilling wells and the most general silt discharge tank, so as to realize the purpose of no power, energy saving, convenient and quick cleaning of the sediment in the underground storage and drainage tunnel. The dredging effect of the dredging system is further strengthened by adding a dredging head, a check valve and a scouring ditch.
以下将结合附图对本发明的构思、具体结构及产生的技术效果作进一步说明，以充分地了解本发明的目的、特征和效果。The idea, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present invention.
附图说明 Description of drawings
图1是本发明一实施例的整体结构示意图。Fig. 1 is a schematic diagram of the overall structure of an embodiment of the present invention.
图2是图1中A-A局部剖面结构示意图。Fig. 2 is a schematic diagram of a partial cross-sectional structure of A-A in Fig. 1 .
具体实施方式 Detailed ways
如图1所示，位于地下深处的一种虹吸式蓄排水隧道清淤装置，入流污水由各个入流竖井1进入蓄排水隧道2，最后经过设置在蓄排水隧道2末端的排淤池7及排污泵8排除，进入污水管网。在此过程中，雨污水中的淤积物会沉淀在蓄排水隧道2的管底。As shown in Figure 1, a siphon type storage and drainage tunnel dredging device located deep underground, the inflow sewage enters the storage and
本实施例的虹吸式蓄排水隧道清淤装置一实施例，用于对蓄排水隧道淤积物的清理，主要包括入流竖井1、蓄排水隧道2、消力井3、虹吸管4和设置在蓄排水隧道末端的排淤池7及排污泵8。An embodiment of the siphon type storage and drainage tunnel dredging device of this embodiment is used to clean up the silt in the storage and drainage tunnel, mainly including the inflow shaft 1, the storage and
蓄排水隧道2贯通设置在各个入流竖井1之间，并与水平面倾斜设置，即蓄排水隧道2的一端高于另一端。入流竖井1连通下水道井口（图中未示出）和蓄排水隧道2，消力井3设置在蓄排水隧道2底部对应每一入流竖井1的位置，相邻消力井3之间设置有虹吸管4。The storage and
具体的，如图1和图2所示，虹吸管4的两端头设置有吸泥头5，以及逆止阀6。吸泥头5伸入消力井3的底部，在蓄排水隧道2的底部上设置有截面为倒三角形的两条冲淤沟9，加快流速，进一步强化清淤系统的清淤效果。Specifically, as shown in FIG. 1 and FIG. 2 ,
本实施例中，三个入流竖井1穿插入倾斜的蓄排水隧道2上，在三个入流竖井1各自的正下方分别设置一个消力井3，然后通过虹吸管4依次连接相邻的消力井3，最靠近排淤池的消力井3与排淤池7之间也设置有虹吸管4。In this embodiment, three inflow shafts 1 are inserted into the inclined storage and
显然，在不同的具体实施例中，本发明的实现方式不局限于上述结构，例如，可以根据实际情况适配相应的入流竖井和消力井，虹吸管可以连接相邻的消力井，也可以都分别直接连接到排淤池或其他不相邻的消力井，同时相邻入流竖井之间设置的蓄排水隧道也可以是其他空间结构，只要最后确保各个入流竖井的贯通以及消力井之间存在高度差即可。Obviously, in different specific embodiments, the implementation of the present invention is not limited to the above structure, for example, the corresponding inflow shaft and stilling well can be adapted according to the actual situation, the siphon can be connected to the adjacent stilling well, or They are directly connected to the silt discharge tank or other non-adjacent stilling wells, and the storage and drainage tunnels set between adjacent inflow shafts can also be other spatial structures, as long as the penetration of each inflow shaft and the connection between the stilling wells are ensured in the end. There is a height difference between them.
以下说明本发明的应用：The application of the present invention is illustrated below:
本虹吸式蓄排水隧道清淤装置可应用到城市防汛中的地下隧道领域中，当短时强降雨或暴雨等原因引起的城市内涝，雨污水通过入流竖井冲入蓄排水隧道底部的消力井，通过设置的消力井来克服雨污水由于高度差产生的冲击负荷及水击水锤现象，同时沉积淤泥；通过设置虹吸管使消力井之间或消力井和排淤池之间产生虹吸现象，实现自动、节能、方便快捷的清理地下蓄排水隧道内的淤积沉淀物的目的；另外通过加设吸泥头、逆止阀和冲淤沟进一步强化了清淤系统的清淤效果；最后的淤积沉淀物都将通过虹吸管或冲淤沟汇集到排淤池内，通过排污泵抽出。This siphon type storage and drainage tunnel dredging device can be applied to the field of underground tunnels in urban flood control. When urban waterlogging is caused by short-term heavy rainfall or heavy rain, the rainwater and sewage will rush into the stilling well at the bottom of the storage and drainage tunnel through the inflow shaft. , by setting stilling wells to overcome the impact load and water hammer phenomenon caused by the height difference of rainwater and sewage, and deposit silt at the same time; by setting siphon pipes, siphon phenomenon occurs between stilling wells or between stilling wells and silt discharge tanks to realize The purpose of automatic, energy-saving, convenient and quick cleaning of the sediment in the underground storage and drainage tunnel; in addition, the dredging effect of the dredging system is further strengthened by adding a suction head, a check valve and a silting ditch; the final silting and sedimentation All the waste will be collected into the silt discharge tank through the siphon or the silt scouring ditch, and then pumped out by the sewage pump.
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall be within the scope of protection defined by the claims.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101998567A CN102720266A (en) | 2012-06-18 | 2012-06-18 | Siphon type dredging device for water storage and drainage tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101998567A CN102720266A (en) | 2012-06-18 | 2012-06-18 | Siphon type dredging device for water storage and drainage tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720266A true CN102720266A (en) | 2012-10-10 |
Family
ID=46946120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101998567A Pending CN102720266A (en) | 2012-06-18 | 2012-06-18 | Siphon type dredging device for water storage and drainage tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720266A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951969A (en) * | 2016-06-30 | 2016-09-21 | 中国电建集团中南勘测设计研究院有限公司 | Water storage and flood drainage system and storage and drainage method |
| CN107419795A (en) * | 2017-09-10 | 2017-12-01 | 沈阳建筑大学 | Deep layer tunnel variable cross-section precipitates cabin of removing contamination |
| CN112012789A (en) * | 2020-07-26 | 2020-12-01 | 中铁二院工程集团有限责任公司 | Collection and Drainage System at Bottom of Long Inclined Shaft in Railway Tunnel |
| CN113684906A (en) * | 2021-08-16 | 2021-11-23 | 长江生态环保集团有限公司 | Deep system drainage structure and using method |
| CN114215161A (en) * | 2021-12-03 | 2022-03-22 | 天津一冶建设工程有限公司 | Anti-clogging structure for inverted siphon pipeline and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916471A (en) * | 1974-06-10 | 1975-11-04 | Raymond Lee Organization Inc | Culvert cleaning tool |
| CN2844228Y (en) * | 2005-11-29 | 2006-12-06 | 常州创新给排水设备有限公司 | Suction dredge |
| CN101324084A (en) * | 2008-07-29 | 2008-12-17 | 四川大学 | Shaft bottom rectifier energy dissipator |
| CN101892705A (en) * | 2010-07-23 | 2010-11-24 | 浙江大学 | A self-siphon hydraulic desilting device for intercepting deep wells |
| CN201704787U (en) * | 2009-09-30 | 2011-01-12 | 重庆大学 | Large-diameter sewage conduit dredging system |
| CN102493547A (en) * | 2011-12-01 | 2012-06-13 | 上海市城市建设设计研究总院 | Automatic dredging system for underground storage-capacity-regulating pipe culvert |
| CN202610962U (en) * | 2012-06-18 | 2012-12-19 | 上海市城市建设设计研究总院 | Siphon-type desilting device of water storage and drainage tunnel |
-
2012
- 2012-06-18 CN CN2012101998567A patent/CN102720266A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916471A (en) * | 1974-06-10 | 1975-11-04 | Raymond Lee Organization Inc | Culvert cleaning tool |
| CN2844228Y (en) * | 2005-11-29 | 2006-12-06 | 常州创新给排水设备有限公司 | Suction dredge |
| CN101324084A (en) * | 2008-07-29 | 2008-12-17 | 四川大学 | Shaft bottom rectifier energy dissipator |
| CN201704787U (en) * | 2009-09-30 | 2011-01-12 | 重庆大学 | Large-diameter sewage conduit dredging system |
| CN101892705A (en) * | 2010-07-23 | 2010-11-24 | 浙江大学 | A self-siphon hydraulic desilting device for intercepting deep wells |
| CN102493547A (en) * | 2011-12-01 | 2012-06-13 | 上海市城市建设设计研究总院 | Automatic dredging system for underground storage-capacity-regulating pipe culvert |
| CN202610962U (en) * | 2012-06-18 | 2012-12-19 | 上海市城市建设设计研究总院 | Siphon-type desilting device of water storage and drainage tunnel |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951969A (en) * | 2016-06-30 | 2016-09-21 | 中国电建集团中南勘测设计研究院有限公司 | Water storage and flood drainage system and storage and drainage method |
| CN105951969B (en) * | 2016-06-30 | 2018-02-09 | 中国电建集团中南勘测设计研究院有限公司 | A kind of water storage flood drainage system and storage discharge method |
| CN107419795A (en) * | 2017-09-10 | 2017-12-01 | 沈阳建筑大学 | Deep layer tunnel variable cross-section precipitates cabin of removing contamination |
| CN107419795B (en) * | 2017-09-10 | 2023-02-28 | 沈阳建筑大学 | Deep tunnel variable cross section deposits cabin of decontaminating |
| CN112012789A (en) * | 2020-07-26 | 2020-12-01 | 中铁二院工程集团有限责任公司 | Collection and Drainage System at Bottom of Long Inclined Shaft in Railway Tunnel |
| CN113684906A (en) * | 2021-08-16 | 2021-11-23 | 长江生态环保集团有限公司 | Deep system drainage structure and using method |
| CN114215161A (en) * | 2021-12-03 | 2022-03-22 | 天津一冶建设工程有限公司 | Anti-clogging structure for inverted siphon pipeline and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204163745U (en) | A kind of tunnel props up hole counter-slope drainage system | |
| CN102720266A (en) | Siphon type dredging device for water storage and drainage tunnel | |
| CN102966165B (en) | System for eliminating and reducing urban inland inundation by utilizing adsorption layer of green area and inland inundation eliminating and reducing method | |
| CN202610962U (en) | Siphon-type desilting device of water storage and drainage tunnel | |
| CN102493547A (en) | Automatic dredging system for underground storage-capacity-regulating pipe culvert | |
| CN202324179U (en) | Automatic dredging system of underground regulation pipe culvert | |
| CN219826919U (en) | Permanent-temporary-combination sewage discharge precipitation structure in water-rich mountain tunnel excavation construction | |
| CN106638917A (en) | Splitting type rainwater recycling, storage and regulation system and construction method thereof | |
| CN207892008U (en) | A kind of drainage arrangement for municipal water conservancy | |
| CN106242029B (en) | A kind of karez formula underground water pollution repair system | |
| CN201952879U (en) | Cutoff apparatus used in municipal rainwater pipe network for cutting off the rainwater flow of the initial period | |
| CN202157297U (en) | Gate control type urban rain and flood regulation, control and utilization system | |
| CN104963383B (en) | A hydraulic automatic silting device for an inverted siphon in a pressurized water delivery pipeline | |
| CN203487619U (en) | Water resource recycling system for city underground engineering construction | |
| CN203769039U (en) | Rainwater storage and drainage system for urban road | |
| CN205116086U (en) | Be used for fluviolacustrine bank self -loopa formula aeration sediment removal device of view | |
| CN204491797U (en) | A kind of sports ground dmp filter stacking device | |
| CN206512818U (en) | A kind of plastic stone rockery construction waste water drainage system device | |
| CN102535579A (en) | Ecological storing system for road rainwater | |
| CN210712893U (en) | Deep foundation pit drainage and drainage integrated system | |
| CN211691124U (en) | Environment-friendly water receiving well based on low-influence development | |
| CN112127461A (en) | Reverse drainage method and structure for poor water tunnel | |
| CN104878826A (en) | Urban road rainwater storage and drainage system and urban road rainwater storage and drainage method | |
| CN206625337U (en) | A kind of sewage sludge is collected and cleaning plant | |
| CN206233351U (en) | A kind of sponge community in urban areas ecotype water-storing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121010 |