CN209703677U - Replacement of not cutting off the water supply passes in and out the device of sluice gate - Google Patents
Replacement of not cutting off the water supply passes in and out the device of sluice gate Download PDFInfo
- Publication number
- CN209703677U CN209703677U CN201821916573.9U CN201821916573U CN209703677U CN 209703677 U CN209703677 U CN 209703677U CN 201821916573 U CN201821916573 U CN 201821916573U CN 209703677 U CN209703677 U CN 209703677U
- Authority
- CN
- China
- Prior art keywords
- diversion pipe
- gate
- cofferdam
- water
- water inlet
- 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
Links
Landscapes
- Barrages (AREA)
Abstract
The utility model relates to one kind do not cut off the water supply replacement disengaging sluice gate device, be equipped with diversion pipe flow guiding structure: the water inlet line of gate shaft, gate shaft, gate shaft outlet conduit in, be continuously provided diversion pipe；Gate doorframe is equipped on the diversion pipe；Gap, diversion pipe between diversion pipe and water inlet line and the gap between outlet conduit, are blocked by plugging part respectively；The water inlet of gate shaft is sent along diversion pipe to pump house area or water outlet；Alternatively, being equipped with cofferdam adds diversion pipe flow guiding structure: cofferdam being arranged in gate shaft, faces gate to be replaced, is in close contact with the gate shaft on outlet conduit entrance periphery；Diversion pipe is provided in outlet conduit to connect with cofferdam；Gate doorframe is equipped on the diversion pipe；Gap between diversion pipe and outlet conduit, is blocked by plugging part；The water inlet of gate shaft is sent along diversion pipe to pump house area or water outlet.It is anhydrous in the work surface of the utility model guarantee replacement gate, it is convenient for changing gate.
Description
Technical field
The utility model relates to pumping plant, in particular to a kind of device for replacement disengaging sluice gate of not cutting off the water supply.
Background technique
After pumping station operation many years, under rugged environment, the overwhelming majority will corrode the disengaging gate for water cut-off function
Damage makes a big impact to pumping station operation and internal unit maintenance, needs replacing.The box culvert leak origin cause of formation is analyzed it is found that disengaging
The main material of well inner gate is mostly ironcasting and carbon steel adopts processing, gate installation region, bad environments, pumping station operation phase
Between most of gate all in open position, in exposure well in mixed gas, the acids such as H2S are contained in this mixed gas
Matter, easily corrosion gate, by running all the year round, gate main structure corrosion condition is serious, and gate is caused not to be available.
Every pumping plant is responsible for sewage or the rainwater conveying of each section, can not normally cut off the water supply, be in pumping plant Inlet and outlet water portion
The gate of position can not be replaced normally.In the past, inlet and outlet piping (box culvert) need to be blocked by replacing these gates, be cut off the water supply for working face.Separately
Outside, it need to also be set up in water inlet manifold and face pump, be responsible for transferring local rain sewage during replacement gate.This replacement technology cycle
Long, expensive, enforcement difficulty is big.
Utility model content
The utility model provides a kind of device of replacement disengaging sluice gate of not cutting off the water supply, by diversion pipe flow guiding structure, or
By the structure of steel cofferdam plus diversion pipe, guarantee anhydrous in the work surface of replacement gate.
In order to achieve the above object, a technical solution of the utility model is to provide a kind of replacement disengaging sluice of not cutting off the water supply
The device of door:
Equipped with diversion pipe flow guiding structure: the water inlet line of gate shaft, gate shaft, gate shaft outlet conduit in, continuously
Ground is provided with diversion pipe；Gate doorframe is equipped on the diversion pipe；Gap, diversion pipe between diversion pipe and water inlet line with
Gap between outlet conduit, is blocked by plugging part respectively；The water inlet of gate shaft send along diversion pipe to pump house area or
Water outlet；
Alternatively, being equipped with cofferdam adds diversion pipe flow guiding structure: cofferdam is set in gate shaft, faces gate to be replaced,
It is in close contact with the gate shaft on outlet conduit entrance periphery；Diversion pipe is provided in outlet conduit to connect with cofferdam；It is described to lead
Gate doorframe is equipped in flow tube；Gap between diversion pipe and outlet conduit, is blocked by plugging part；Gate shaft
Water inlet is sent along diversion pipe to pump house area or water outlet.
Optionally, water inlet line corresponding with the diversion pipe flow guiding structure is single, and water inlet line, outlet conduit are in same
One absolute altitude；
Add the corresponding water inlet line of diversion pipe flow guiding structure to have one or more and/or water inlet line with the cofferdam, go out
Waterpipe is not at same absolute altitude；
The caliber for adding the corresponding diversion pipe of diversion pipe flow guiding structure with the diversion pipe flow guiding structure or cofferdam, so that water conservancy diversion
The flow of pipe is not less than all water inlet lines not less than the water section of crossing of 50% or diversion pipe of the flow of all water inlet lines
Cross water section 50%.
Optionally, the diversion pipe corresponding with the diversion pipe flow guiding structure is steel pipe；The diversion pipe is segmentation knot
Structure, mutually with flanged joint；The steel bracket supported to it is equipped with below the diversion pipe；
Add the corresponding diversion pipe of diversion pipe flow guiding structure to be steel pipe with the cofferdam, described diversion pipe one end be equipped with flange with
The spare interface flange in cofferdam is connected；The steel bracket supported to it is equipped with below the diversion pipe.
Optionally, the shape in the cofferdam is arc-shaped or polygon；The cofferdam is overall structure either segmentation group
The structure of dress；
The cofferdam is steel, includes keel made of water fender made of steel plate and fashioned iron；The keel use
10# channel steel；The contact surface of gate shaft, the soft rubber band equipped with sealing by the cofferdam and outlet conduit entrance；
The height in the cofferdam, corresponding to the height above shaft bottom to gate guide；The cofferdam and pool wall and bottom of pond are pasted
Tightly, upper end is fixed with expansion bolt.
Optionally, the shape in the cofferdam is rectangular.
Optionally, corresponding with the diversion pipe flow guiding structure, at least penetrate into water inlet line, leading in outlet conduit
Seal ring is surrounded in flow tube；
Add the corresponding plugging part of diversion pipe flow guiding structure with the cofferdam, around the sealing piece of setting on diversion pipe
Outside, and be separated at a distance from setting between the sealing piece；
Add the corresponding plugging part of diversion pipe flow guiding structure with the diversion pipe flow guiding structure or the cofferdam, includes
The guidance tape paved layer by layer, and the viscous mixed soil of the specified thickness between adjacent guidance tape and between guidance tape and pipeline wall surface is set；
Nail builds the rake tip at a row interval between at the top of the guidance tape and pipeline；The viscous mixed soil setting is between the rake tip or falls to harrow
On the tip.
The utility model provides a kind of device of replacement disengaging sluice gate of not cutting off the water supply, by diversion pipe drainage way, by rain
Sewage is guided into water pump chamber or outfall sewer, is guaranteed anhydrous in the work surface of replacement gate；It is led alternatively, being added by steel cofferdam
The mode of flow tube will be separated into and out of rain sewage in well with gate region is needed to change, by steel cofferdam and water conservancy diversion by rain sewage every
From and lead to pump house or gargoyle of pumping station, guarantee anhydrous in the work surface of replacement gate.
Detailed description of the invention
Schematic diagram when Fig. 1 is diversion pipe drainage way；
Fig. 2 is the schematic diagram of diversion pipe；
Fig. 3 is schematic diagram when steel cofferdam adds diversion pipe mode.
Specific embodiment
The utility model provides a kind of device of replacement disengaging sluice gate of not cutting off the water supply, and embodiment one as shown in Figure 1 passes through
" diversion pipe drainage way " is realized.
Gate is replaced by " diversion pipe drainage way ", is more suitable for that 40 space of gate shaft is smaller, the small (pump of pumping plant flow
Total flow of standing is lower than 2.0m3/ s), water inlet line 21 is single, and water inlet line 21, the outlet conduit 22 of gate shaft 40 are in same mark
In the case where height, this operating condition is easily installed diversion pipe 10.This technology can restore pumping station operation, easy construction, nothing as early as possible
Complicated technique requirement, replacement gate are at low cost.
" diversion pipe drainage way " does not cut off the water supply when replacing gate, according to actual flow or Bureau of Water Resources's relevant regulations, to select
The caliber of diversion pipe 10.In this example, to guarantee that pumping plant operates normally, during non-flood control, pipeline flow cannot be below former water inlet pipe
Road 50%, therefore the caliber D selection of diversion pipe 10 need to expire water section is not less than former water inlet line 21 50%.
The diversion pipe 10 uses steel pipe, is connected in the inlet and outlet pipe lines of gate shaft 40, and the water inlet of gate shaft 40 is by leading
Flow tube 10 enters pump house area or water outlet, so that it is guaranteed that it is anhydrous (at label 41) in the gate shaft of replacement gate, in order to gate
Replacement.Label 50 is the gate needed to change.
" diversion pipe drainage way ", which does not cut off the water supply, replaces the construction method of gate, and include following below scheme: diversion pipe 10 makes；Point
Section, which is hung in gate shaft 40, to be placed in position；Gate doorframe is penetrated and is led before wherein final stage diversion pipe 10 connects by segmentation connection
In flow tube 10 (shown in label 60)；After connecting final section diversion pipe 10,10 integral position of diversion pipe is adjusted, and lower section is installed
Bracket；Gap diving blocks 30 between diversion pipe 10 and former inlet and outlet pipe lines road；Yu Shui is taken out after plug maintenance；Into next step lock
Door erection stage.
Width L1 with specific reference to the gate shaft 40 and length L2 for being respectively protruding into 40 inlet and outlet pipe lines of gate shaft, to make
The diversion pipe 10 of corresponding length.The general sectional making of diversion pipe 10, with the connection of flange 11, the length of every section of diversion pipe 10 needs basis
The width of gate shaft 40 meets lifting and installation requirement in well.Preferably, the length of every section of diversion pipe 10 is less than gate shaft 40
Width L1.Seal ring 12 (Fig. 2) is additionally provided on the outside of the diversion pipe 10 penetrated into inlet and outlet pipes.
When diversion pipe 10 is installed, the gate shaft 40 of normal operation can not generally cut off the water supply completely, usually select dry season and water inlet
Lower time progress (night) is measured to carry out；It is generally installed under erector's guidance by diver, this section of common erector is applied
Well operations are not descended between duration, just can guarantee installation safety (pumping station operation safety and operator's installation) in this way.Diversion pipe 10
Segmental hoisting is taken, after ` is installed, diversion pipe 10 is supported using steel bracket for the method assembled in well,
Guarantee that diversion pipe 10 is located at the center of former inlet and outlet pipe lines, gap is uniform between diversion pipe 10 and former pipeline, then by diving under water
Member is fallen gap plugging between diversion pipe 10 and former pipeline using the form of diving brick envelope, and water is made to enter pumping plant along diversion pipe 10
In pump chamber or gargoyle of pumping station, without entering in gate shaft 40, finally more than 40 water of gate shaft is transferred away with immersible pump again, this
Sample is it is ensured that anhydrous state in gate shaft 40.
When carrying out gap plugging, diver dresses JQ-83 type diving apparatus and enters closure orientation in gate shaft 40, first to envelope
The rubbish in blocked pipeline orientation is fished out clearly, and side walk slab (490*490*65) and mixed soil (cement: yellow mud: fast drying prescription are then used
=1:2:0.1) guidance tape is paved layer by layer is blocked, start to block below diversion pipe 10, gradually upwards, finally in diversion pipe
It closes up right above 10, and carries out plug maintenance.One layer of viscous mixed soil first is smeared in tube bottom face when making basis, then thorough is on it built
Guidance tape must have 2-3 centimeters of viscous mixed soil between guidance tape and guidance tape or between guidance tape and pipeline wall surface.The width root of the bottom of foundation
(it is recommended that being not less than 2 brick width) is determined according to the size and water level of caliber.The quality of closing in directly influence blocking pipe at
Lose, when guidance tape is built at the top of pipeline, at the top of the guidance tape and pipeline between nail build a row and fall to harrow the tip, nail is built repeatedly at interval, directly
Until clenching, then fall between the rake tip or smear thereon, fill in it is viscous mixed native.
The utility model embodiment two as shown in Figure 3 is realized " by way of steel cofferdam+diversion pipe ":
Gate is replaced " by way of steel cofferdam+diversion pipe ", it is big to be more suitable for 40 space of inlet gate well, has in well more
Road water inlet line 23, the different situation of multichannel pipeline absolute altitude in gate shaft 40, installation diversion pipe 10 is more complicated under this operating condition,
Difficulty is big, is not easy to construct, and can not replace gate using " diversion pipe drainage way ".Therefore, " diversion pipe drainage way " is carried out
Optimization and upgrading is formed " steel cofferdam+diversion pipe mode " to replace this kind of gate, is mainly replaced using steel cofferdam 70 to gate
Work surface carries out water proof, is drained in conjunction with diversion pipe 10, both can guarantee that operation side was anhydrous in this way, and also can guarantee pumping plant just
Often operation.
The choice of diameter principle of diversion pipe 10 in " steel cofferdam+diversion pipe mode ", with " the water conservancy diversion Tube Drain side of embodiment one
It is consistent in formula ".
" steel cofferdam+diversion pipe mode " does not cut off the water supply and replaces the construction method of gate, includes following below scheme: steel cofferdam 70
And diversion pipe 10 makes；Steel cofferdam 70 and the segmentation of diversion pipe 10 hang in gate shaft 40 and are placed in position；Steel cofferdam 70 assembles
Connection；The fixation of steel cofferdam 70 and gap plugging；Diversion pipe 10 penetrates gate doorframe in diversion pipe 10 before connecting；Diversion pipe
10 integral positions adjust and install underlying holder；Steel cofferdam 70 is connect with diversion pipe 10；Diversion pipe 10 and former pipeline enclosure gap
Diving blocks 30；Remaining water in cofferdam 70 is taken out after plug maintenance；Into the next step gate installation stage.
70 height of cofferdam is related with bottom depth, scene inflow Q and 10 caliber D of diversion pipe, the weight of usual diversion pipe 10
Force flow flow velocity is 1m/s, and water conservancy diversion bore is selected to must assure that the water inlet of gate shaft 40 by (Q=3.14* (D/2) 2*1), guarantees lock
Not ponding in door well 40, otherwise 40 water of gate shaft can overflow across the entrance of steel cofferdam 70, influence gate replacement construction.Steel cofferdam 70
Height is generally shaft bottom to gate guide height, if 40 upper inlet width of gate shaft is inadequate, steel cofferdam 70 can be with
Segmental machining is put into well again assembled.
The shape in cofferdam 70 generally uses arc-shaped, and structural strength can be enhanced, also according to the 40 practical shape in scene of gate shaft
Shape also can choose polygon, such as select rectangular.Steel cofferdam 70 uses steel plate and section steel manufacture, and keel use 10# slot
Steel, water fender use contact surface after steel plate, with gate shaft 40 to paste soft rubber band, are used for sealing.
Under 40 entrance of gate shaft generally all compares, when steel cofferdam 70 is installed, sectional well inner tissue, when underground work,
By mounting technique, personnel on site is instructed, and by teams and groups' downhole operations of diving under water, in well after the completion of assembly, then cofferdam 70 is moved on to and is needed to change
Gate immediately ahead of, be adjacent to cofferdam 70 as much as possible with pool wall and bottom of pond, upper end is simply fixed with expansion bolt.Pacify in cofferdam 70
After dress, diversion pipe 10 and 70 spare interface flanged joint of cofferdam are got up.After diversion pipe 10 is installed, then by diving under water
On the outside of 10 sealing piece of diversion pipe, closure method is taken, diversion pipe 10 is supported, while also guaranteeing 10 outflow water of diversion pipe
It is guided in cofferdam 70, apart from the gap sealing piece 10cm preferably at closure, can not shut completely, diversion pipe 10 is allowed to have certain activity
Space.After the above preparation is finished, using big flow water pump in a short time by Yu Shui is exhausted (at label 71) in cofferdam, lead to
It crosses hydraulic pressure cofferdam 70 is pressed on pool wall and bottom of pond, finally reexamines the leakage situation in cofferdam 70, then diving is taken by diver
Leakage point is blocked by the form of brick envelope.After cofferdam 70 is water-tight, gap between diversion pipe 10 and outlet conduit 24 is sealed off, is made
The anhydrous entrance of operation side can enter next step gate in this way and replace link.
In embodiment one and embodiment two, when gate normal mounting, doorframe is first installed, then door body is installed, lock is finally installed
Door guide rail, and headstock gear and connection wire rod are installed, by trial operation, without card resistance phenomenon, gate closes on earth gate, sealing surface seam
Gap must be uniform, then carries out back-grouting to doorframe, since former built-in fitting and former gate connect together, when removing former gate,
It is most of all to fall off, it cannot reuse, gate fixing bolt is fixed using stainless steel chemical bolt, and bolt material is
Stainless steel 304, model M24*480 (Sina appraises and decides specification), doorframe and guide rail grouting position, bar planting (14mm), bar planting spacing
It is double for 15cm, it longitudinally ties up and knits reinforcing bar (14mm).
Gate installation period length depends primarily on the concrete length of time of back-grouting, when in order to shorten gate replacement
Between and guarantee grouting quality, gate grouting concrete use dedicated grouting material (H-80 High Strength Non-shrinking Filling Material), this injection material
Material has the characteristics that high flowability, ungauged regions are strong early, high-strength, good from close performance；And reliable in quality, it can reach in 10 hours
Final set effect.
Product performance index:
It is discussed in detail although the content of the utility model has passed through above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read above content, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the protection scope of the utility model should be by appended
Claim limit.
Claims (9)
- The device of replacement disengaging sluice gate 1. one kind is not cut off the water supply, which is characterized in thatEquipped with diversion pipe flow guiding structure: the water inlet line of gate shaft, gate shaft, gate shaft outlet conduit in, continuously set It is equipped with diversion pipe；Gate doorframe is equipped on the diversion pipe；Gap, diversion pipe and water outlet between diversion pipe and water inlet line Gap between pipeline, is blocked by plugging part respectively；The water inlet of gate shaft is sent along diversion pipe to pump house area or water outlet Mouthful；Alternatively, be equipped with cofferdam add diversion pipe flow guiding structure: cofferdam is set in gate shaft, faces gate to be replaced, with go out The gate shaft on waterpipe entrance periphery is in close contact；Diversion pipe is provided in outlet conduit to connect with cofferdam；The diversion pipe On be equipped with gate doorframe；Gap between diversion pipe and outlet conduit, is blocked by plugging part；The water inlet of gate shaft It send along diversion pipe to pump house area or water outlet.
- 2. the device for replacement disengaging sluice gate of not cutting off the water supply as described in claim 1, which is characterized in thatWater inlet line corresponding with the diversion pipe flow guiding structure is single, and water inlet line, outlet conduit are in same absolute altitude；The corresponding water inlet line of diversion pipe flow guiding structure is added to have one or more and/or water inlet line, outlet pipe with the cofferdam Road is not at same absolute altitude.
- 3. the device for replacement disengaging sluice gate of not cutting off the water supply as described in claim 1, which is characterized in thatAdd the caliber of the corresponding diversion pipe of diversion pipe flow guiding structure with the diversion pipe flow guiding structure or cofferdam, so that diversion pipe The mistake crossing water section be not less than all water inlet lines of the flow not less than 50% or diversion pipe of the flow of all water inlet lines The 50% of water section.
- 4. the device for replacement disengaging sluice gate of not cutting off the water supply as described in claim 1, which is characterized in thatThe diversion pipe corresponding with the diversion pipe flow guiding structure is steel pipe；The diversion pipe is segmental structure, mutually with method Orchid connection；The steel bracket supported to it is equipped with below the diversion pipe；The corresponding diversion pipe of diversion pipe flow guiding structure is added to be steel pipe with the cofferdam, described diversion pipe one end is equipped with flange and cofferdam Spare interface flange be connected；The steel bracket supported to it is equipped with below the diversion pipe.
- 5. the device for replacement disengaging sluice gate of not cutting off the water supply as described in claim 1, which is characterized in thatThe shape in the cofferdam is arc-shaped or polygon；The cofferdam is the structure of overall structure either sectional；The cofferdam is steel, includes keel made of water fender made of steel plate and fashioned iron；The keel use 10# slot Steel；The contact surface of gate shaft, the soft rubber band equipped with sealing by the cofferdam and outlet conduit entrance.
- 6. the device for replacement disengaging sluice gate of not cutting off the water supply as described in claim 1, which is characterized in thatThe height in the cofferdam, corresponding to the height above shaft bottom to gate guide；The cofferdam is adjacent to pool wall and bottom of pond, on End is fixed with expansion bolt.
- 7. the device for replacement disengaging sluice gate of not cutting off the water supply as described in claim 1, which is characterized in thatIt is corresponding with the diversion pipe flow guiding structure, is at least penetrating into water inlet line, surround on the diversion pipe in outlet conduit It is provided with seal ring；Add the corresponding plugging part of diversion pipe flow guiding structure with the cofferdam, on diversion pipe outside the sealing piece of setting Side, and be separated at a distance from setting between the sealing piece.
- 8. the device for replacement disengaging sluice gate of not cutting off the water supply as claimed in claim 1 or 6, which is characterized in thatAdd the corresponding plugging part of diversion pipe flow guiding structure with the diversion pipe flow guiding structure or the cofferdam, comprising layer by layer The guidance tape paved, and the viscous mixed soil of the specified thickness between adjacent guidance tape and between guidance tape and pipeline wall surface is set；It is described Nail builds the rake tip at a row interval between at the top of guidance tape and pipeline；The viscous mixed soil setting fall between the rake tip or fall the rake tip it On.
- 9. the device for replacement disengaging sluice gate of not cutting off the water supply as claimed in claim 5, which is characterized in thatThe shape in the cofferdam is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916573.9U CN209703677U (en) | 2018-11-21 | 2018-11-21 | Replacement of not cutting off the water supply passes in and out the device of sluice gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916573.9U CN209703677U (en) | 2018-11-21 | 2018-11-21 | Replacement of not cutting off the water supply passes in and out the device of sluice gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209703677U true CN209703677U (en) | 2019-11-29 |
Family
ID=68636491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821916573.9U Expired - Fee Related CN209703677U (en) | 2018-11-21 | 2018-11-21 | Replacement of not cutting off the water supply passes in and out the device of sluice gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209703677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339215A (en) * | 2018-11-21 | 2019-02-15 | 上海市城市排水有限公司竹园第污水输送分公司 | Replacement of not cutting off the water supply passes in and out the device and method of sluice gate |
| CN112458932A (en) * | 2020-10-29 | 2021-03-09 | 上海市政工程设计研究总院（集团）有限公司 | Non-cutoff connection method for single-hole water diversion box culvert |
-
2018
- 2018-11-21 CN CN201821916573.9U patent/CN209703677U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339215A (en) * | 2018-11-21 | 2019-02-15 | 上海市城市排水有限公司竹园第污水输送分公司 | Replacement of not cutting off the water supply passes in and out the device and method of sluice gate |
| CN109339215B (en) * | 2018-11-21 | 2024-07-26 | 上海市城市排水有限公司竹园第一污水输送分公司 | Device and method for replacing water inlet and outlet gates without water interruption |
| CN112458932A (en) * | 2020-10-29 | 2021-03-09 | 上海市政工程设计研究总院（集团）有限公司 | Non-cutoff connection method for single-hole water diversion box culvert |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106961864B (en) | A kind of the alkaline land improving system and its modification method of wells connecting with canals | |
| CN105951859B (en) | Base pit dewatering well wears concrete of basement bottom plate closure sealing construction processing method | |
| CN107217691A (en) | For city underground leak stopping and the method for strengthening construction | |
| CN101070704A (en) | Controllable one-well lamina precipitation construction method | |
| CN109339215A (en) | Replacement of not cutting off the water supply passes in and out the device and method of sluice gate | |
| CN209339169U (en) | A kind of precipitation well in foundation pit plugging device | |
| CN109236367A (en) | A kind of tunnel structure and its frozen construction method with antiseepage drain function | |
| CN209703677U (en) | Replacement of not cutting off the water supply passes in and out the device of sluice gate | |
| CN109371918A (en) | With the dam structure and its construction method faced forever in conjunction with multi-functional drainage box culvert | |
| CN208982109U (en) | A kind of tunnel structure with antiseepage drain function | |
| CN108166532A (en) | A kind of groutable underground continuous wall connector and its construction method | |
| CN106120822A (en) | Supporting method and device for preventing mud rock landslide | |
| CN203768925U (en) | Seal device for dewatering well in foundation pit | |
| CN103374904B (en) | Farmland discharging-irrigating patten transformation saves land water-saving method | |
| CN209482261U (en) | With the dam structure faced forever in conjunction with multi-functional drainage box culvert | |
| CN112523170A (en) | Seepage-proofing treatment method for deep-buried karst seepage channel of reservoir | |
| CN204849713U (en) | Simple and easy distribution structure | |
| WO2023173569A1 (en) | Method for treating underground water disaster of weak-permeability soil layer slope | |
| CN207109745U (en) | Contain high water head plugging structure in a kind of dam foundation water delivery bottom | |
| CN103132528B (en) | Chemical grouting technology | |
| CN205876388U (en) | Grout system of backfilling of shaft in vertical heat exchanger | |
| CN201817801U (en) | Underground drainage device used in farmland | |
| CN104790380B (en) | Underground diaphragm wall framework | |
| CN107574792A (en) | Contain high water head plugging structure and its construction method in a kind of dam foundation water delivery bottom | |
| CN207211173U (en) | CFRD reverse drainage system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191129 Termination date: 20211121 |