CN206916789U - Highly-breathable horizontal leakage preventing composite drainage material for stone cultural artifact protection - Google Patents
Highly-breathable horizontal leakage preventing composite drainage material for stone cultural artifact protection Download PDFInfo
- Publication number
- CN206916789U CN206916789U CN201720232798.1U CN201720232798U CN206916789U CN 206916789 U CN206916789 U CN 206916789U CN 201720232798 U CN201720232798 U CN 201720232798U CN 206916789 U CN206916789 U CN 206916789U
- Authority
- CN
- China
- Prior art keywords
- horizontal
- layer
- permeability cell
- breathable
- geotextile
- 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.)
- Active
Links
Landscapes
- Revetment (AREA)
Abstract
The utility model discloses a kind of highly-breathable horizontal leakage preventing composite drainage material for stone cultural artifact protection, including horizontal row water layer, horizontal impervious layer, horizontal air-permeable layer and vertical gas permeable devices.The horizontal row water layer plays anti-filter and drainage, for the underground water in white-out overlying Rock And Soil；The horizontal impervious layer, which is met water and can formed, stablizes lasting colloid waterproof layer, and the Groundwater infiltration bottom for obstructing preservation in the Rock And Soil of top need to carry out the Rock And Soil of antiseepage protection；The horizontal air-permeable layer is used to need the horizontal gas-permeable channels of Rock And Soil offer of antiseepage protection to underliing, and is connected with vertical gas permeable devices；The vertical gas permeable devices are used to provide vertical gas-permeable channels between horizontal air-permeable layer and air, and possessing prevents rainwater and surface water to be directly entered the ability of horizontal air-permeable layer.
Description
Technical field
It the utility model is related to antiseepage composite drainage material, especially a kind of highly-breathable water for stone cultural artifact protection
Flat antiseepage composite drainage material.
Background technology
With the development of society, great attention and concern of the historical relic's protection by government, society.Stone inscription, Cave Temple historical relic
It is an important component of historical relic, but by the Rock And Soil that stone inscription, Cave Temple historical relic are depended on it is joined directly together, stone
Carve, the water damage of Cave Temple historical relic into such cultural relic protection project an emphasis and difficult point.Horizontal leakage preventing, every ooze for such text
Thing protects a more effective means of engineering water hazard prediction, is often carried out in a manner of seepage by geo-textile blanket etc..Conventional geotechnique is anti-
Oozing blanket has preferable seepage capability, but the environmental effect of rock mass also interdependent to stone inscription, statue generates considerable influence, especially
It is the air circulation condition in Rock And Soil.This will cause the growth and development of rock mass in itself to deviate original trend, long-term in the past
Potential adverse effect is produced to the historical relic such as stone inscription, statue body.If the water vapour in stone inscription, the Cave Temple is by impervious barrier barrier nothing
Method discharge etc..
Geosynthetics is a kind of new geomaterial, may be disposed at the soil body in the engineerings such as ground, side slope
Between surface, inside or each soil layer, the effect such as anti-filter, draining, antiseepage, reinforcement protection is played.Geosynthetics is with high score
Sub- polymer is made for raw material, for example plastics, rubber and fiber.It is widely used to water conservancy, railway, highway, port at present
The every field of the engineerings such as mouth, building, while also make in canal engineering, sewage treatment project, refuse landfill seepage control project
Applied for antiseepage, the material that intercepts water.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of with draining, antiseepage, ventilative combination property
Composite, in the stone inscription statue that can not be applicable very well applied to existing seepage by geo-textile material, Cave Temple water hazard prediction engineering
Horizontal impervious layer.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：One kind is used for stone cultural artifact and protected
Highly-breathable horizontal leakage preventing composite drainage material, including horizontal composite construction and vertical gas permeable devices, the horizontal composite junction
Structure is followed successively by horizontal row water layer, horizontal impervious layer and horizontal air-permeable layer from top to bottom, and the horizontal row water layer is the row by upper strata
Water layer geotextile and the three-dimensional water discharge web-roll core of lower floor are combined；The horizontal impervious layer is knitted by impervious barrier upper strata geotechnique
Thing, middle level waterproof layer, impervious barrier lower floor geotextile are combined；The horizontal air-permeable layer is the three-dimensional breathable web-roll core by upper strata
It is combined with the air-permeable layer geotextile of lower floor；Above-mentioned three levels structure is combined into from top to bottom is integral stratiform knot
Structure, the multiple passages for penetrating horizontal row water layer and horizontal impervious layer are laid with overall layered composite structure；It is vertical ventilative
Device is fixed and is inserted in passage, covers required protection rock mass and atmosphere by under by horizontal air-permeable layer.
The vertical gas permeable devices include vertical permeability cell, the ventilation rainhat at the top of vertical permeability cell, be inserted in it is logical
Plastics eye button in stomata, the screens tarpaulin that plastics eye button and vertical permeability cell can be blocked on horizontal row water layer top surface,
The inner edge of the plastics eye button is provided with the internal thread to match with bottom of the tube linkage section outer rim pipe screw thread of vertically breathing freely, vertical saturating
The lower end of tracheae is connected with plastics eye button in a manner of pipe screw thread, and screens tarpaulin uses and vertical permeability cell, plastics eye button phase
The different diameter through joint for passing through vertical permeability cell matched somebody with somebody, the lower end of screens tarpaulin are connected by screw thread with plastics eye button.
Horizontal composite construction is formed using bonding connection between the horizontal row water layer, horizontal impervious layer, horizontal air-permeable layer.
The drainage blanket geotextile, impervious barrier upper strata geotextile, air-permeable layer geotextile are acupuncture perforated nonwoven
Geotextile, impervious barrier lower floor geotextile are needle punched non-woven fabrics and PE film composite earthwork cloths, the three-dimensional water discharge web-roll core
It is with the complex three-dimensional structures for forming connected space and the high density polyethylene (HDPE) of vertical supporting ability, institute with three-dimensional breathable web-roll core
It is natural sodium bentonite layer to state middle level waterproof layer.
The vertical permeability cell is managed for PVC-U, and the bottom connection end outer rim, top outer rim in vertical permeability cell set oblique angle
55 ° of pipe screw threads；The plastics eye button, ventilation rainhat are polyvinyl chloride material, are set in the inner edge of plastics eye button and vertical
The Internal Pipe Thread that bottom of the tube connection end outer rim pipe screw thread of breathing freely matches, and set in the inner edge of ventilation rainhat and breathed freely with vertical
The Internal Pipe Thread that tube top portion outer rim pipe screw thread matches, plastics eye button and ventilation rainhat pass through screw thread with vertical permeability cell respectively
Connection.
The middle level waterproof layer maximum natural sodium bentonite particle size is less than 32mm.
The beneficial effects of the utility model are：
1st, the highly-breathable horizontal leakage preventing composite drainage material provided by the utility model for stone cultural artifact protection, including
Horizontal row water layer, horizontal impervious layer, horizontal air-permeable layer and vertical gas permeable devices；Bonding is compound between three level courses, is easy to transport
Defeated and construction；Vertical gas permeable devices are detachable, easily transport, preservation and construction.
2nd, the highly-breathable horizontal leakage preventing composite drainage material provided by the utility model for stone cultural artifact protection, has
Good draining, barrier performance, are applicable the horizontal drainage antiseepage of all kinds of Rock And Soils, belong to composite geotextile material.
3rd, the highly-breathable horizontal leakage preventing composite drainage material provided by the utility model for stone cultural artifact protection, has
Good permeability, suitable for the stone inscription Cave Temple historical relic's protection water hazard prediction engineering that is required to Rock And Soil environmental effect
Horizontal leakage preventing, adverse effect of the conventional levels impervious barrier to the historical relic's protection stone inscription Cave Temple can be improved.
Brief description of the drawings
Fig. 1 is the structure of the highly-breathable horizontal leakage preventing composite drainage material of the present utility model for stone cultural artifact protection
Schematic diagram.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, the highly-breathable horizontal leakage preventing composite drainage material of the present utility model for stone cultural artifact protection,
Including horizontal composite construction and vertical gas permeable devices 4, the horizontal composite construction is followed successively by horizontal row water layer 1, water from top to bottom
Flat impervious barrier 2 and horizontal air-permeable layer 3, the horizontal row water layer 1 are by the drainage blanket geotextile 11 on upper strata and the three-dimensional of lower floor
Draining web-roll core 12 is combined；The horizontal impervious layer 2 is by impervious barrier upper strata geotextile 21, middle level waterproof layer 22, antiseepage
Layer lower floor geotextile 23 is combined；The horizontal air-permeable layer 3 is by the three-dimensional breathable web-roll core 31 on upper strata and breathing freely for lower floor
Layer geotextile 32 is combined；Above-mentioned three levels structure is combined into from top to bottom is integral layer structure, in integral layer
The multiple passages 5 for penetrating horizontal row water layer 1 and horizontal impervious layer 2 are laid with shape structure；Vertical gas permeable devices 4, which are fixed, to be inserted in
In passage 5, required protection rock mass and atmosphere are covered by under by horizontal air-permeable layer 3.
The vertical gas permeable devices 4 include vertical permeability cell 42, the ventilation rainhat 44 at the top of vertical permeability cell, inserted
Plastics eye button 41 in passage 5, plastics eye button 41 and vertical permeability cell 42 can be blocked on the top surface of horizontal row water layer 1
Screens tarpaulin 43, the inner edge of the plastics eye button 41 are provided with and the vertical bottom linkage section outer rim pipe screw thread phase of permeability cell 42
The internal thread matched somebody with somebody, the lower end of vertical permeability cell 42 are connected with plastics eye button 41 in a manner of pipe screw thread, screens tarpaulin 43 using with
The different diameter through joint for passing through vertical permeability cell 42 that vertical permeability cell 42, plastics eye button 41 match, screens tarpaulin 43
Lower end be connected by screw thread with plastics eye button 41.
It is preferred that level is formed using bonding connection between the horizontal row water layer 1, horizontal impervious layer 2, horizontal air-permeable layer 3
Composite construction.
It is preferred that the drainage blanket geotextile 11, impervious barrier upper strata geotextile 21, air-permeable layer geotextile 32 are pin
Pierced holes nonweaven geotextile, impervious barrier lower floor geotextile 23 are needle punched non-woven fabrics and PE film composite earthwork cloths, described
Three-dimensional water discharge web-roll core 12 and three-dimensional breathable web-roll core 31 are that have to form connected space and the high density polyethylene (HDPE) of vertical supporting ability
Complex three-dimensional structures, the middle level waterproof layer 22 is natural sodium bentonite layer.
It is preferred that the vertical permeability cell 42 is managed for PVC-U, outside the bottom connection end outer rim, top in vertical permeability cell 42
Edge sets 55 ° of oblique angle pipe screw thread；The plastics eye button 41, ventilation rainhat 44 are polyvinyl chloride material, in plastics eye button 41
Inner edge the Internal Pipe Thread to match with the vertical bottom connection end outer rim pipe screw thread of permeability cell 42 is set, and in ventilation rainhat 44
Inner edge the Internal Pipe Thread to match with the vertical top outer rim pipe screw thread of permeability cell 42, plastics eye button 41 and ventilation rainhat are set
44 are connected through a screw thread with vertical permeability cell 42 respectively.
Formed it is preferred that the middle level waterproof layer 22 spreads for natural sodium bentonite particle, maximum natural sodium bentonite
Particle size is less than 32mm.
The horizontal row water layer plays anti-filter and drainage, for the underground water in white-out overlying Rock And Soil；The water
Flat impervious barrier, which is met water and can formed, stablizes lasting colloid waterproof layer, for obstructing in the Rock And Soil of top under the Groundwater infiltration of preservation
Portion need to carry out the Rock And Soil of antiseepage protection；The horizontal air-permeable layer is used to give down the Rock And Soil offer for covering antiseepage protection horizontal ventilative
Passage, and connected with vertical gas permeable devices；The vertical gas permeable devices are used to provide vertically between horizontal air-permeable layer and air
Gas-permeable channels, and possessing prevents rainwater and surface water to be directly entered the ability of horizontal air-permeable layer.
Specifically, the structure of horizontal row water layer 1 includes：Acupuncture perforation nonweaven geotextile 11, three-dimensional water discharge web-roll core
12；The structure of horizontal waterproof layer 2 includes：Acupuncture perforation nonweaven geotextile 21, natural sodium bentonite layer 22, acupuncture nonwoven
Cloth and PE films composite earthwork cloth 23；The structure of horizontal air-permeable layer 3 includes：Three-dimensional breathable web-roll core 31, acupuncture perforated nonwoven geotechnique
Fabric 32；The vertical gas permeable devices 4 include：Plastics eye button 41, vertical permeability cell 42, screens tarpaulin 43, rainhat of ventilating
44。
The acupuncture perforation nonweaven geotextile 11 is bonded as one with three-dimensional water discharge web-roll core 12 by industrial adhesive, is made
Into the horizontal row water layer 1 of the utility model material；The horizontal impervious layer 2 is that natural sodium bentonite layer 22 is laid on into acupuncture
On non-woven fabrics and PE films composite earthwork cloth 23, overlying acupuncture perforation nonweaven geotextile 21, will by needling process processing and fabricating
Natural sodium bentonite layer 22 be mounted in needle punched non-woven fabrics and PE films composite earthwork cloth 23, acupuncture perforation nonweaven geotextile 21 it
Between, the horizontal impervious layer 2 of the utility model material is made；The three-dimensional breathable web-roll core 31 and acupuncture perforation nonweaven geotextile 32
It is bonded as one by industrial adhesive, the horizontal air-permeable layer 3 of the utility model material is made；The horizontal row water layer 1, level
It is bonded as one between impervious barrier 2, the three of horizontal air-permeable layer 3 by industrial adhesive, it is compound that level of the present utility model is made
Structure；And plastics eye button 41 is set on horizontal composite construction, to connect vertical permeability cell 42.
The vertical permeability cell 42, using PVC-U pipe processing and fabricatings, bottom connection end outer rim in vertical permeability cell 42,
Top outer rim sets 55 ° of oblique angle pipe screw thread；The plastics eye button 41, ventilation rainhat 44, using polyvinyl chloride processing and fabricating,
In the Internal Pipe Thread that the inner edge of plastics eye button 41 is set and the vertical bottom connection end outer rim pipe screw thread of permeability cell 42 matches, and
The inner edge of ventilation rainhat 44 sets the Internal Pipe Thread to match with the vertical top outer rim pipe screw thread of permeability cell 42；The screens is prevented
Water cap 43, using the PVC different diameter through joint processing and fabricatings to match with vertical permeability cell 42, plastics eye button 41；It is vertical ventilative
Pipe 42, the type selecting of plastics eye button 41 and size should meet engineering design requirements.The vertical permeability cell, by with certain strong
Degree and corrosion resistant tubing are made, and nominal outside diameter, according to project Air permenbility needs, is calculated and determined between 100mm~300mm.
The utility model highly-breathable horizontal leakage preventing composite drainage material, there is excellent draining, antiseepage, permeability；
Horizontal composite construction selected materials, it is easy to type selecting processing；Horizontal composite construction breadth, length, the model of each hierarchy material,
Specification and the specification of vertical permeability cell, distribution density, it can be based on engineering demand and customize, economy, practicality can be achieved
Purpose.Therefore, highly-breathable horizontal leakage preventing composite drainage material of the present utility model, in the situation for possessing horizontal leakage preventing ability
Under, the drainability of Rock And Soil is assigned in enhancing, and possess certain venting capability, to mitigate horizontal waterproof blanket to stone inscription, rock cave
The adverse effect of temple historical relic.
Embodiment described above is merely to illustrate technological thought of the present utility model and feature, and its object is to make ability
Technical staff in domain is it will be appreciated that content of the present utility model and implement according to this, it is impossible to only limits this practicality with the present embodiment
New the scope of the claims, i.e., the equal change or modification that the spirit disclosed in all the utility model is made, still fall new in this practicality
In the scope of the claims of type.
Claims (6)
1. a kind of highly-breathable horizontal leakage preventing composite drainage material for stone cultural artifact protection, it is characterised in that including level
Composite construction and vertical gas permeable devices (4), it is anti-that the horizontal composite construction is followed successively by horizontal row water layer (1), level from top to bottom
Infiltration layer (2) and horizontal air-permeable layer (3), the horizontal row water layer (1) are by the drainage blanket geotextile (11) on upper strata and lower floor
Three-dimensional water discharge web-roll core (12) is combined；The horizontal impervious layer (2) is by impervious barrier upper strata geotextile (21), middle level waterproof
Layer (22), impervious barrier lower floor geotextile (23) are combined；The horizontal air-permeable layer (3) is the three-dimensional breathable web-roll core by upper strata
(31) the air-permeable layer geotextile (32) with lower floor is combined；Above-mentioned three levels structure is combined into from top to bottom to be integral
Layer structure, the multiple ventilations for penetrating horizontal row water layer (1) and horizontal impervious layer (2) are laid with overall layered composite structure
Hole (5)；Vertical gas permeable devices (4) fixation is inserted in passage (5), and required protection rock mass is covered by under by horizontal air-permeable layer (3)
With atmosphere.
2. it is used for the highly-breathable horizontal leakage preventing composite drainage material of stone cultural artifact protection, its feature according to claim 1
It is, the vertical gas permeable devices (4) include vertical permeability cell (42), the ventilation rainhat at the top of vertical permeability cell
(44) the plastics eye button (41) that, is inserted in passage (5), plastics eye button (41) can be blocked on horizontal row water layer (1) top surface
With the screens tarpaulin (43) of vertical permeability cell (42), the inner edge of the plastics eye button (41) is provided with and vertical permeability cell (42)
The internal thread that bottom linkage section outer rim pipe screw thread matches, the lower end of vertical permeability cell (42) and plastics eye button (41) are with pipe screw thread
Mode connects, and screens tarpaulin (43) makes vertical permeability cell using with what vertical permeability cell (42), plastics eye button (41) matched
(42) different diameter through joint passed through, the lower end of screens tarpaulin (43) are connected by screw thread with plastics eye button (41).
3. it is used for the highly-breathable horizontal leakage preventing composite drainage material of stone cultural artifact protection, its feature according to claim 1
It is, level is formed again using bonding connection between the horizontal row water layer (1), horizontal impervious layer (2), horizontal air-permeable layer (3)
Close structure.
4. it is used for the highly-breathable horizontal leakage preventing composite drainage material of stone cultural artifact protection, its feature according to claim 1
It is, the drainage blanket geotextile (11), impervious barrier upper strata geotextile (21), air-permeable layer geotextile (32) are acupuncture
Perforated nonwoven geotextile, impervious barrier lower floor geotextile (23) are needle punched non-woven fabrics and PE film composite earthwork cloths, described
Three-dimensional water discharge web-roll core (12) and three-dimensional breathable web-roll core (31) are that have to form connected space and the high density of vertical supporting ability is gathered
The complex three-dimensional structures of ethene, the middle level waterproof layer (22) are natural sodium bentonite layer.
5. it is used for the highly-breathable horizontal leakage preventing composite drainage material of stone cultural artifact protection, its feature according to claim 2
It is, the vertical permeability cell (42) is managed for PVC-U, is set in bottom connection end outer rim, the top outer rim of vertical permeability cell (42)
Put 55 ° of oblique angle pipe screw thread；The plastics eye button (41), ventilation rainhat (44) are polyvinyl chloride material, in plastics eye button
(41) inner edge sets the Internal Pipe Thread to match with vertical permeability cell (42) bottom connection end outer rim pipe screw thread, and anti-in ventilation
The inner edge of rain cap (44) sets the Internal Pipe Thread to match with outer rim pipe screw thread at the top of vertical permeability cell (42), plastics eye button (41)
It is connected through a screw thread respectively with vertical permeability cell (42) with ventilation rainhat (44).
6. it is used for the highly-breathable horizontal leakage preventing composite drainage material of stone cultural artifact protection, its feature according to claim 4
It is, the maximum natural sodium bentonite particle size of middle level waterproof layer (22) is less than 32mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720232798.1U CN206916789U (en) | 2017-03-10 | 2017-03-10 | Highly-breathable horizontal leakage preventing composite drainage material for stone cultural artifact protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720232798.1U CN206916789U (en) | 2017-03-10 | 2017-03-10 | Highly-breathable horizontal leakage preventing composite drainage material for stone cultural artifact protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206916789U true CN206916789U (en) | 2018-01-23 |
Family
ID=61310435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720232798.1U Active CN206916789U (en) | 2017-03-10 | 2017-03-10 | Highly-breathable horizontal leakage preventing composite drainage material for stone cultural artifact protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206916789U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801442A (en) * | 2017-03-10 | 2017-06-06 | 中国电建集团北京勘测设计研究院有限公司 | For the highly-breathable horizontal leakage preventing composite drainage material of stone cultural artifact protection |
| CN110185020A (en) * | 2019-07-08 | 2019-08-30 | 北京盈丰园林工程有限公司 | A kind of siphon drainage collection system |
| CN110962358A (en) * | 2019-12-18 | 2020-04-07 | 李孟朋 | Coating device for composite geotechnical drainage net |
-
2017
- 2017-03-10 CN CN201720232798.1U patent/CN206916789U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801442A (en) * | 2017-03-10 | 2017-06-06 | 中国电建集团北京勘测设计研究院有限公司 | For the highly-breathable horizontal leakage preventing composite drainage material of stone cultural artifact protection |
| CN110185020A (en) * | 2019-07-08 | 2019-08-30 | 北京盈丰园林工程有限公司 | A kind of siphon drainage collection system |
| CN110962358A (en) * | 2019-12-18 | 2020-04-07 | 李孟朋 | Coating device for composite geotechnical drainage net |
| CN110962358B (en) * | 2019-12-18 | 2021-10-26 | 山东恒阳新材料有限公司 | Coating device for composite geotechnical drainage net |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206916789U (en) | Highly-breathable horizontal leakage preventing composite drainage material for stone cultural artifact protection | |
| CN105672365B (en) | GCL vertical impermeable walls and preparation method thereof | |
| CN106906888A (en) | A kind of residential quarter sponge urban facilities system | |
| CN212477839U (en) | Landfill treatment system | |
| CN106801442A (en) | For the highly-breathable horizontal leakage preventing composite drainage material of stone cultural artifact protection | |
| CN205475357U (en) | A compound lining seepage prevention structure of double -deck HDPE membrane that is used for domestic waste landfill yard that seepage discharge is big | |
| CN206529760U (en) | High-speed railway embankment substrate salinized soil resists molten sunken construction | |
| CN109235505A (en) | Three-dimensional environmental protection complex ecological closing structure | |
| CN206616662U (en) | A kind of residential quarter sponge urban facilities system | |
| CN204059424U (en) | Slope seepage control structure | |
| CN205604306U (en) | Perpendicular cut -pff wall of GCL | |
| CN207521404U (en) | Landfill gas collection system | |
| CN207521412U (en) | Refuse landfill exhaust apparatus | |
| CN108252269B (en) | Impervious watertight structure in hydraulic engineering | |
| CN206128142U (en) | Be applied to landfill yard seepage prevention structure of mountain valley type landfill yard sludge sump solidification back ground | |
| CN207597445U (en) | Landfill yard covers system | |
| CN203057815U (en) | Coastal saline-alkali soil greening alkali discharging system | |
| CN109653188A (en) | A kind of vacuum prepressing device and its construction method with sandbag bed course | |
| CN205975679U (en) | Top board layer structure plants | |
| CN202991066U (en) | Self-adhesion, infiltrating and draining macromolecular waterproof board | |
| CN209308076U (en) | A kind of dangerous waste disposition novel excavation type security landfill reservoir area | |
| CN206635905U (en) | A kind of new up concave type greenbelt guarded drainage construction | |
| CN106869082A (en) | Hydraulic Projects antiseepage method for exhausting | |
| CN207227881U (en) | Subgrade and pavement structure filled with argillaceous siltstone | |
| CN208830372U (en) | Refuse landfill bottom storehouse and library slope antiseepage bridging arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |