WO2018036317A1 - 一种集水排浸系统及其施工方法 - Google Patents

一种集水排浸系统及其施工方法 Download PDF

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Publication number
WO2018036317A1
WO2018036317A1 PCT/CN2017/093761 CN2017093761W WO2018036317A1 WO 2018036317 A1 WO2018036317 A1 WO 2018036317A1 CN 2017093761 W CN2017093761 W CN 2017093761W WO 2018036317 A1 WO2018036317 A1 WO 2018036317A1
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Prior art keywords
drainage
water
sand
water collecting
pipe
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PCT/CN2017/093761
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English (en)
French (fr)
Inventor
王志鹏
张高
贺双喜
陈海坤
赵继勇
杨鹏
祁伟强
韩纯杰
高勇
陈娟
王海燕
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中国电建集团贵阳勘测设计研究院有限公司
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Publication of WO2018036317A1 publication Critical patent/WO2018036317A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E03F3/046—Open sewage channels
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401—Gullies for use in roads or pavements
    • E03F5/0404—Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06—Gully gratings

Definitions

  • the invention belongs to the technical field of drainage in water conservancy and hydropower engineering, and particularly relates to a water collecting and discharging system and a construction method thereof.
  • the area where the impervious wall is installed on the embankment blocks the passage of the original groundwater in the protection zone into the channel for the prevention of the external river channel, thus raising the groundwater level of the protection zone and causing immersion.
  • the method of embedding sand-free concrete pipes behind the embankment is generally adopted to reduce the groundwater level and surface water that may occur in the immersion area, and the groundwater and surface water are led to the drainage stations of various protection areas through the sand-free concrete pipes. .
  • the geotextile filter is wrapped on the outside of the sand-free concrete pipe to prevent the fine particles from blocking the sand.
  • the wall of the concrete pipe often fails to achieve a good drainage effect during the rich period of groundwater in the flood season, and the single drainage tube structure has limitations on the ground drainage effect and cannot meet the drainage requirements of the surface water.
  • the present invention provides a water collecting and draining system and a construction method thereof. Therefore, the problem of drainage and drainage in the protection zone can be solved in a timely and effective manner, and the long-term effective drainage and drainage effect can be achieved.
  • a water collecting and discharging system comprising a drainage ditch, a drainage shaft, a drainage pipe and a water collecting channel, wherein the drainage shaft is respectively connected with a drainage ditch and a drainage pipe, and the water collecting channel is connected with the drainage ditch, and the drainage vertical shaft is connected
  • the drainage dip conduits are arranged with a plurality of lengths, and the drainage dip shaft comprises a sand-free concrete pipe, a geotextile screen and a water filter mesh pad, wherein the geotextile filter mesh is wrapped outside the sand-free concrete pipe, and the drainage mesh pad Wrapped outside the geotextile screen, the draining duct is placed perpendicular to the sand-free concrete pipe and communicates with the interior of the sand-free concrete pipe.
  • the water collecting and draining system further comprises a pumping station, wherein the pumping station is composed of a water collecting channel, a water inlet tank, a pump house and a steel pipe, the water collecting channel is connected with the drain pipe, the water inlet pool is arranged on the downstream side of the water collecting channel, and the pumping room is arranged in the water inlet pool. Downstream, the steel pipe is connected to the inlet pool through the pump house.
  • the pumping station is composed of a water collecting channel, a water inlet tank, a pump house and a steel pipe, the water collecting channel is connected with the drain pipe, the water inlet pool is arranged on the downstream side of the water collecting channel, and the pumping room is arranged in the water inlet pool. Downstream, the steel pipe is connected to the inlet pool through the pump house.
  • a grid is evenly arranged above the drainage channel.
  • a sand trap is arranged at the junction of the water collecting channel and the drainage ditch.
  • the drainage immersion conduit is arranged in a 2-3 row in a plum blossom shape on the drainage immersion shaft.
  • a construction method of a water collection and drainage system the specific method steps are as follows:
  • Buried drain pipe Firstly, a drain pipe is buried on the back side of the flood control embankment, and the drain pipe is connected to the drainage ditch of the ground through the drainage dip shaft;
  • the water collection channel is arranged on the ground, and the drainage ditch is connected, the surface water is collected into the drainage ditch, and finally drained into the drainage pipe through the drainage dip shaft, and the water collecting channel (4) is 50 m downstream. ⁇ 100m;
  • Parcel water filter mat Wrap the water filter mat on the outside of the geotextile filter and fix it.
  • the water collecting and discharging system can provide the drainage immersion conduit around the drainage immersion shaft while satisfying the ground water discharge requirement, thereby greatly improving the groundwater drainage effect and the drainage immersion strength. It has a good effect on reducing the groundwater level in flood season, and also plays a good protective role for the stability of the guard.
  • Figure 1 is a schematic perspective view of the present invention
  • Figure 2 is a transverse cross-sectional view of the present invention
  • Figure 3 is a plan view of the present invention.
  • Figure 4 is a schematic view showing the end face structure of the present invention.
  • Figure 5 is a cross-sectional view of the draining shaft of the present invention.
  • Figure 6 is a schematic structural view of a pump station in the present invention.
  • Figure 7 is a schematic illustration of an embodiment of the invention.
  • a water collecting and draining system includes a drainage ditch 1, a drainage shaft 2, a drain pipe 3, and a water collecting channel 4, and the drainage shaft 2 is connected to the drainage ditch 1 and the drain pipe 3, respectively.
  • the water collecting channel 4 is connected to the drainage ditch 1 and the drainage shaft 2 is clothed
  • the geotextile screen 203 wrapped on the outside of the sand-free concrete pipe 202 prevents the fine particles from clogging the pipe wall of the sand-free concrete pipe 202; the water-repellent mesh pad 204 prevents the large-diameter particles from silting up the blockage of the sand-free concrete pipe 202, and at the same time
  • the drainage conduit 201 achieves a better drainage effect.
  • the water collecting and draining system further comprises a pumping station 5, wherein the pumping station 5 is composed of a water collecting channel 501, a water inlet tank 502, a pump house 503 and a steel pipe 504, the water collecting channel 501 is connected with the drain pipe 3, and the water collecting pool 502 is arranged at the water collecting channel.
  • the pump house 503 On the downstream side of 501, the pump house 503 is disposed downstream of the inlet 502, and the steel pipe 504 is connected to the inlet 502 through the pump house 503.
  • the water is finally discharged into the river channel 7 through the steel pipe 504.
  • a grid 101 is evenly arranged above the drain 1 . To prevent debris from entering the drain 1.
  • the sand collecting tank 401 is disposed at the junction of the water collecting channel 4 and the drainage ditch 1. The sludge in the water collecting channel 4 is prevented from flowing into the drainage ditch 1 in the sand.
  • the drainage immersion conduit 201 is arranged in a 2-3 row in a plum blossom shape on the drainage immersion shaft 2.
  • the water collecting and draining system of the present invention is mainly implemented according to the following steps during construction:
  • (1) Buried drain pipe Firstly, a drain pipe 3 is buried on the rear side of the flood control dike 6, and the drain pipe 3 is connected to the drainage ditch 1 of the ground through the drainage dip shaft 2; the specific operation mode is to perform foundation excavation on the rear side of the flood control embankment 6
  • the excavation size is determined according to the size of the drain pipe 3.
  • the soil is trapezoidal excavation, the excavation slope is 1:0.5 ⁇ 1:1, the rock is vertically excavated, the drain pipe is buried after excavation, and the drain pipe 3 is made of steel.
  • the concrete structure has a diameter of 50 cm to 200 cm, and the drain pipe 3 is connected to the drainage ditch 1 of the ground through the drainage shaft 2, and the drainage ditch 1 is a reinforced concrete structure, and the width is set to 40 cm to 100 cm;
  • the water collection channels 4 are arranged on the ground, and the drainage ditch 1 is connected, and the ground water is collected into the drainage ditch 1 and finally discharged into the drainage pipe 3 through the drainage digging shaft 2, and the water collecting channel 4 is smooth.
  • the flow direction is 50m ⁇ 100m, or it is built according to the terrain; in this step, the water collecting channel 4 and the drainage ditch 1 are connected by plain concrete or reinforced concrete structure, and the connecting section form adopts a rectangular shape or a U shape;
  • wrapping the water filter mat wrapping the water filter mat 204 on the outside of the geotextile filter 203 and fixing it;
  • the pumping station 5 is composed of a water collecting channel 501, a water inlet 502, a pump room 503 and a 504 steel pipe, and finally the water is discharged into the river channel 7 through the steel pipe 504;

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

一种集水排浸系统，系统包括排水沟（1）、排浸竖井（2）、排水管（3）及集水渠道（4），排浸竖井（2）分别与排水沟（1）和排水管（3）相连，集水渠道（4）与排水沟（1）相连，排浸竖井（2）上布置有若干长度不等的排浸导管（201），排浸竖井（2）包括无砂混凝土管（202）、土工布滤网（203）和滤水网垫（204），其中，土工布滤网（203）包裹在无砂混凝土管（202）外部，滤水网垫（204）包裹在土工布滤网（203）外部，排浸导管（201）垂直于无砂混凝土管（202）布置，并与无砂混凝土管（202）内部连通。还提供了一种集水排浸系统的施工方法

Description

一种集水排浸系统及其施工方法 技术领域
本发明属于水利水电工程中排水技术领域，具体是涉及一种集水排浸系统及其施工方法。
背景技术
城镇防护区堤防修建后，堤基设置防渗墙的区域阻断了防护区原地下水排入提防外河道的通道，因此将抬高防护区的地下水位，造成浸没影响。目前为减少工程永久占地，一般采用在堤后埋设无砂混凝土管的方式，降低可能发生浸没区的地下水位及地表水，并通过无砂混凝土管将地下水及地表水引至各防护区域排涝站。但是目前常用的无砂混凝土管，在运行一段时间后，管壁极其容易发生堵塞现象，造成无法排浸或排浸排涝效果不佳，往往导致雨季防护区内雨水无法及时排走，给防护区带来极大安全隐患。
为增强排浸排涝效果，提高防护区的安全性，目前大部分采用多层结构的排浸管代替无砂混凝土管，即通过在无砂混凝土管外侧包裹土工布滤网防止细小颗粒堵塞无砂混凝土管的管壁。但是该结构在在汛期地下水丰富时段，往往不能达到很好的排浸效果，且单一的排浸管结构对于地面排水效果也有局限性，无法满足地面水的排泄要求。
发明内容
为解决上述技术问题，本发明提供了一种集水排浸系统及其施工方法。从而能够及时有效的解决防护区排浸及排涝问题，达到长期有效的排浸排涝效果。
本发明通过以下技术方案得以实现。
一种集水排浸系统，包括排水沟、排水竖井、排水管及集水渠道，所述排水竖井分别与排水沟和排水管相连，所述集水渠道与排水沟相连，所述排水竖井上布置有若干长度不等的排浸导管，所述排浸竖井包括无砂混凝土管、土工布滤网和滤水网垫，其中，土工布滤网包裹在无砂混凝土管外部，滤水网垫包裹在土工布滤网外部，所述排浸导管垂直于无砂混凝土管布置，并与无砂混凝土管内部连通。
所述集水排浸系统还包括泵站，其中泵站由汇水渠、进水池、泵房及钢管组成，汇水渠与排水管相连，进水池设置于汇水渠下游侧，泵房设置在进水池下游，钢管通过泵房与进水池相连。
所述排水沟上方均匀布置有格栅。
所述集水渠道与排水沟结合处设置拦沙坎。
所述排浸导管为2-3排呈梅花形布置在排浸竖井上。
一种集水排浸系统的施工方法，其具体方法步骤如下：
(1)埋设排水管：首先在防洪堤后侧埋设排水管，排水管通过排浸竖井与地面的排水沟相连接；
(2)铺设滤料：在排水管上方及排浸竖井周边铺设滤料，使地面水自然渗入排浸竖井；
(3)布置排浸导管：在排浸竖井周边设置2～3排排浸导管，竖向排距为1m～3m，呈梅花形布置，环向间距为60°，上层排浸导管长度为5m～8m，下层排浸导管长度为8m～10m，孔径为50mm～150mm；
(4)布置集水渠道：将集水渠道布置于地面，并连接排水沟，将地面水汇集入排水沟，并通过排浸竖井最终汇入排水管，集水渠道(4)顺流向间距50m～100m；
(5)设置拦沙坎：在集水渠道与排水沟结合处设置拦沙坎；
(6)布置格栅：在排水沟1上方布置格栅；
(7)安装无砂混凝土管：无砂混凝土管安装前，外侧首先包裹 土工布滤网；
(8)包裹滤水网垫：在土工布滤网外侧包裹滤水网垫，并进行固定。
本发明的有益效果在于：
与现有技术相比，采用本发明所述的集水排浸系统，在满足地面水排泄要求的同时，在排浸竖井周边设置排浸导管，大大提高了地下水排浸效果及排浸力度，对于降低汛期地下水位有着良好的效果，同时对于提防的稳定也起到较好的防护作用。
附图说明
图1是本发明的立体结构示意图；
图2是本发明的横向剖视图；
图3是本发明的俯视图；
图4是本发明的端面结构示意图；
图5是本发明中排浸竖井的剖视图；
图6是本发明中泵站的结构示意图；
图7是本发明实施例示意图。
图中：1-排水沟，2-排浸竖井，3-排水管，4-集水渠道，5-泵站，6-防洪堤，7-河道，8-滤料，101-格栅，201-排浸导管，202-无砂混凝土管，203-土工布滤网，204-滤水网垫，401-拦沙坎，501-汇水渠，502-进水池，503-泵房，504-钢管。
具体实施方式
下面进一步描述本发明的技术方案，但要求保护的范围并不局限于所述。
如图1至图6所示，一种集水排浸系统，包括排水沟1、排水竖井2、排水管3及集水渠道4，所述排水竖井2分别与排水沟1和排水管3相连，所述集水渠道4与排水沟1相连，所述排水竖井2上布 置有若干长度不等的排浸导管201，所述排浸竖井2包括无砂混凝土管202、土工布滤网203和滤水网垫204，其中，土工布滤网203包裹在无砂混凝土管202外部，滤水网垫204包裹在土工布滤网203外部，所述排浸导管201垂直于无砂混凝土管202布置，并与无砂混凝土管202内部连通。通过包裹在无砂混凝土管202外侧的土工布滤网203防止细小颗粒堵塞无砂混凝土管202的管壁；通过滤水网垫204防止较大直径颗粒淤积堵塞无砂混凝土管202，同时通过设置排浸导管201达到较好的排浸效果。
所述集水排浸系统还包括泵站5，其中泵站5由汇水渠501、进水池502、泵房503及钢管504组成，汇水渠501与排水管3相连，进水池502设置于汇水渠501下游侧，泵房503设置在进水池502下游，钢管504通过泵房503与进水池502相连。采用本技术方案，如图6所示，汇水最终通过钢管504排入河道7内。
所述排水沟1上方均匀布置有格栅101。，防止杂物进入排水沟1。
所述集水渠道4与排水沟1结合处设置拦沙坎401。阻止集水渠道4内淤泥、於沙流入排水沟1。
所述排浸导管201为2-3排呈梅花形布置在排浸竖井2上。
如图7所示，本发明所述的集水排浸系统在施工时，主要按照如下步骤实施：
(1)埋设排水管：首先在防洪堤6后侧埋设排水管3，排水管3通过排浸竖井2与地面的排水沟1相连接；具体操作方式是在防洪堤6后侧进行基础开挖，开挖尺寸根据排水管3尺寸而定，土质采用梯形开挖，开挖边坡1:0.5～1:1，岩质采用垂直开挖，开挖后埋设排水管3，排水管3采用钢筋混凝土结构，直径大小50cm～200cm，排水管3通过排浸竖井2与地面的排水沟1相连接，排水沟1为钢筋混凝土结构，宽度设置为40cm～100cm；
(2)铺设滤料：在排水管3上方及排浸竖井2周边铺设滤料8， 使地面水自然渗入排浸竖井2；该步骤中铺设滤料8采用分层铺设，且滤料8的颗粒大小自上而下由细变粗；
(3)布置排浸导管：在排浸竖井2周边设置2～3排排浸导管201，竖向排距为1m～3m，呈梅花形布置，环向间距为60°，上层排浸导管201长度为5m～8m，下层排浸导管201长度为8m～10m，孔径为50mm～150mm；
(4)布置集水渠道：将集水渠道4布置于地面，并连接排水沟1，将地面水汇集入排水沟1，并通过排浸竖井2最终汇入排水管3，集水渠道4顺流向间距50m～100m，或依地形而建；该步骤中集水渠道4与排水沟1采用素混凝土或钢筋混凝土结构连接，其连接断面形式采用矩形或U型；
(5)设置拦沙坎：在集水渠道4与排水沟1结合处设置拦沙坎401，阻止集水渠道401内淤泥、於沙流入排水沟1；所述拦沙坎401高度优先为5cm～15cm，采用该高度值，既不影响水流的正常流态，又有效的将水流中泥沙阻挡进入排水沟1。
(6)布置格栅：在排水沟1上方布置格栅101，防止杂物进入排水沟1；所述格栅101采用钢筋网或钢板焊接，孔间距10cm～20cm，采用该孔间距，既能保证地表水的自然进入，又可防止较大物块的进入。
(7)安装无砂混凝土管：无砂混凝土管202安装前，外侧首先包裹土工布滤网203，防止细小颗粒堵塞无砂混凝土管管壁202；
(8)包裹滤水网垫：在土工布滤网203外侧包裹滤水网垫204，并进行固定；
(9)布置泵站：泵站5由汇水渠501、进水池502、泵房503和504钢管组成，最终将汇水通过钢管504排入河道7内；
(10)排水管3内集水最终与泵站5前侧汇水渠501相连。
工业实用性：本申请可以在工业中使用，具有工业实用性。
应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。本实施例中未明确的各组成部分均可用现有技术加以实现。

Claims (6)

  1. 一种集水排浸系统，其特征在于：包括排水沟(1)、排水竖井(2)、排水管(3)及集水渠道(4)，所述排水竖井(2)分别与排水沟(1)和排水管(3)相连，所述集水渠道(4)与排水沟(1)相连，所述排水竖井(2)上布置有若干长度不等的排浸导管(201)，所述排浸竖井(2)包括无砂混凝土管(202)、土工布滤网(203)和滤水网垫(204)，其中，土工布滤网(203)包裹在无砂混凝土管(202)外部，滤水网垫(204)包裹在土工布滤网(203)外部，所述排浸导管(201)垂直于无砂混凝土管(202)布置，并与无砂混凝土管(202)内部连通。
  2. 根据权利要求1所述的一种集水排浸系统，其特征在于：所述集水排浸系统还包括泵站(5)，其中泵站(5)由汇水渠(501)、进水池(502)、泵房(503)及钢管(504)组成，汇水渠(501)与排水管(3)相连，进水池(502)设置于汇水渠(501)下游侧，泵房(503)设置在进水池(502)下游，钢管(504)通过泵房(503)与进水池(502)相连。
  3. 根据权利要求1所述的一种集水排浸系统，其特征在于：所述排水沟(1)上方均匀布置有格栅(101)。
  4. 根据权利要求1所述的一种集水排浸系统，其特征在于：所述集水渠道(4)与排水沟(1)结合处设置拦沙坎(401)。
  5. 根据权利要求1所述的一种集水排浸系统，其特征在于：所述排浸导管(201)为2-3排呈梅花形布置在排浸竖井(2)上。
  6. 一种如权利要求1至5任意一项所述集水排浸系统的施工方法，其特征在于：具体方法步骤如下：
    (1)埋设排水管：首先在防洪堤(6)后侧埋设排水管(3)，排水管(3)通过排浸竖井(2)与地面的排水沟(1)相连接；
    (2)铺设滤料：在排水管(3)上方及排浸竖井(2)周边铺设滤料(8)，使地面水自然渗入排浸竖井(2)；
    (3)布置排浸导管：在排浸竖井(2)周边设置2～3排排浸导管(201)，竖向排距为1m～3m，呈梅花形布置，环向间距为60°，上层排浸导管(201)长度为5m～8m，下层排浸导管(201)长度为8m～10m，孔径为50mm～150mm；
    (4)布置集水渠道：将集水渠道(4)布置于地面，并连接排水沟(1)，将地面水汇集入排水沟(1)，并通过排浸竖井(2)最终汇入排水管(3)，集水渠道(4)顺流向间距50m～100m；
    (5)设置拦沙坎：在集水渠道(4)与排水沟(1)结合处设置拦沙坎(401)；
    (6)布置格栅：在排水沟(1)上方布置格栅(101)；
    (7)安装无砂混凝土管：无砂混凝土管(202)安装前，外侧首先包裹土工布滤网(203)；
    (8)包裹滤水网垫：在(22)土工布滤网外侧包裹(23)滤水网垫，并进行固定。
PCT/CN2017/093761 2016-08-25 2017-07-21 一种集水排浸系统及其施工方法 WO2018036317A1 (zh)

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