CN106245688A - A kind of prevention basement water leakage of floor constructing structure and construction technology thereof - Google Patents
A kind of prevention basement water leakage of floor constructing structure and construction technology thereof Download PDFInfo
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- CN106245688A CN106245688A CN201610855042.2A CN201610855042A CN106245688A CN 106245688 A CN106245688 A CN 106245688A CN 201610855042 A CN201610855042 A CN 201610855042A CN 106245688 A CN106245688 A CN 106245688A
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- 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
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a kind of prevention basement water leakage of floor constructing structure and construction technology thereof, including concrete topping and laying french drain therein, described french drain is laid on the upper surface of structural concrete base plate, described french drain includes being parallel to each other and forms filling slot between french drain wall and the french drain wall laid, described french drain wall is provided with some water holes excessively along longitudinal direction, graded broken stone all it is filled with in described filling slot and in crossing water hole, stiffener net and geotextiles it is equipped with the most successively between described concrete topping and french drain, the end of described french drain connects with water collection pit.Prevention basement water leakage of floor constructing structure of the present invention and construction technology thereof are applicable to all kinds of buildings with basement engineering, are especially suitable for by high water level area and all kinds of buildings with basement engineering in the area of area, coastal city and rich groundwater.
Description
Technical field
The invention belongs to construction engineering water-proof structure field, especially relate to a kind of prevention basement water leakage of floor construction knot
Structure and construction technology thereof.
Background technology
Basement in skyscraper occurs that seepage is to be difficult in construction project to overcome and headachy ask all the time
Topic, although along with current scientific and technological progress and the exploitation of new material and the continuous of utilization are released, had
A lot of seepages are resolved.But the construction quality caused due to various factors during practice of construction does not often reach rule
Model and technology explanation requirement, and cause basement that the Seepage of the degree such as not occurs during using.
For the seepage on basement ground, current most for the treatment of measures are used for " leak stopping " and process, and i.e. find leakage
Point, cut complete ground, slip casting or use additive method process, be finally reached the purpose of antiseep.
And in the construction work of leak stopping, after the breakthrough that often ground surface occurs is blocked, again on the ground that adnexa is adjacent
There is new breakthrough in side, and often leak stopping result produces little effect.
Analyzing its reason is after tiny crackle occurs in structural slab, basement water by under this crack-leakage to decorative layer,
Percolating water starts horizontal direction flowing seepage, starts to be gone out ground surface by crack-leakage after searching out decorative layer crack.Here it is it is past
The past main cause opening ground surface fracture plugging poor effect, the crack of ground surface is not that structural cracks cannot fundamentally hinder
Disconnected percolating water.
For coastal cities and inland high water level area, such issues that especially prominent, often due to the seepage of basement is made
Becoming basement cannot use or reduce use function, bring high economic loss to investor, meanwhile, unit in charge of construction is due to difficulty
To process the leak stopping substantial amounts of manpower and materials of input and financial resources, but result produces little effect.
There is history and the culture of 5,000 years in name race of China, and the phase is abundant for summing up in the improvement of rivers in the time immemorial
Experience, the famous dictum of " stifled not as dredge " this experience that ancients sum up out over the past thousands of years is equally applicable to current modern society
In the middle of engineering field, for above-mentioned occurred basement leakage problem, sump in design of basement, hole is utilized to arrange corresponding
Reasonably underground french drain carries out functional in organized water drainage, can thoroughly solve leakage problems, stop due to seepage, leak stopping brought each
Item economic loss.
Summary of the invention
In view of this, it is contemplated that propose one prevention basement water leakage of floor constructing structure and construction technology thereof, with
Solve current basement leakage problem.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of prevention basement water leakage of floor constructing structure, including concrete topping and laying french drain therein, institute
Stating french drain and be laid on the upper surface of structural concrete base plate, described french drain includes be parallel to each other the french drain wall laid and french drain wall
Between form filling slot, described french drain wall along be longitudinally provided with some cross water hole, described filling slot in and is all filled with in crossing water hole
Graded broken stone, is equipped with stiffener net and geotextiles the most successively between described concrete topping and french drain, described blind
The end of ditch connects with water collection pit.
Further, described french drain includes main french drain and time french drain being interconnected, and the filling slot of described main french drain is with secondary
The filling slot of french drain is interconnected.
Further, described main french drain is provided with the french drain wall that three roads are arranged in parallel, is positioned in the french drain wall of centre
Arranging connection hole, described time french drain is provided with the french drain wall that twice are arranged in parallel.
Further, described french drain wall is 40mm-50mm by the brick one-tenth of some concretes, the thickness of described concrete brick, and width is
60mm, arranged water hole every 2m-3m in described french drain wall, and the described width crossing water hole is 50mm-80mm, described filling slot
Width is 150mm-200mm.
Further, described graded broken stone selects particle diameter to be that 0.5mm, 1.5mm and 20mm rubble carries out grating, three kinds of particle diameters
The grating ratio of rubble is (15-25): (25-35): (40:60), it is preferable that described grating ratio is 20:30:50.
Further, described geotextiles is short blended fabric of silk and polyester or short silk polypropylene geotextile.
Further, the intensity level of described concrete brick is more than or equal to the intensity level of concrete topping.
Further, described stiffener net is not less than the reinforcing bar of 8mm by diameter, with the spacing not less than 200mm, in length and breadth
Two-way laying is formed.
Further, the end of described french drain connects the PVC overflow for the water in french drain is delivered to water collection pit,
The top of described water collection pit is covered with cover plate.
The construction technology of a kind of above-mentioned prevention basement water leakage of floor constructing structure, comprises the steps:
(1) structural concrete base plate cleans: ash is landed in cleaning structural concrete backplate surface foreign material and removing, cleaned
Whether journey there are crack, and labelling by observation structure concrete floor surface at any time, have seen whether that water oozes out；
(2) french drain unwrapping wire: carry out line setting according to french drain layout drawing, and at the crack that step (1) marks and
Inside outer wall of basement, post-cast strip, the structural concrete base plate thickness place of changing and be likely to occur the weak part of percolating water
Increasing the laying of french drain, and be together in series with neighbouring french drain, form the most unobstructed pipelined channel, water imports water the most at last
In collection pit；
(3) french drain is laid: build french drain wall and water hole is crossed in indwelling, mixed according to grating ratio by rubble, clean up
After be filled with in filling slot；
(4) geotextiles is covered: geotextiles is covered in graded broken stone upper surface, and covers the french drain wall of both sides；
(5) stiffener colligation: according to specification and the spacing of corresponding Structure Calculation reinforcing bar, by reinforcing steel bar laying in geotextiles
Upper surface forms stiffener net, and ensures that french drain top does not affect normal bearing capacity because cross section diminishes；
(6) the pouring of concrete topping or bed course: after french drain, geotextiles, reinforcing bar reinforcing mat acceptance(check), by concrete
Pour and form concrete topping or bed course on the net in stiffener；
(7) partition seam cutting, concrete curing: carry out cut-off rule cutting on the concrete topping surface poured, and carry out
Concrete curing.
Relative to prior art, prevention basement water leakage of floor constructing structure of the present invention and construction technology thereof have
Following advantage:
During prevention basement water leakage of floor constructing structure of the present invention and construction technology thereof utilize basement original design
All kinds of catch pits, sump, reasonably arrange weeper drain under ground decoration layer, by structural concrete base plate leakage out
Water carries out functional in organized water drainage, it is to avoid percolating water penetrates into more than decorative layer affects its use function.Save substantial amounts of leak stopping to use
Fund, reduces maintenance cost.The present invention is applicable to all kinds of buildings with basement engineering, is especially suitable for high water level ground
All kinds of buildings with basement engineering in the area of district and area, coastal city and rich groundwater.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the main french drain described in the embodiment of the present invention and the floor map of time french drain intersection；
Fig. 2 is the structural representation of the main french drain described in the embodiment of the present invention；
Fig. 3 is the structural representation of the secondary french drain described in the embodiment of the present invention；
Fig. 4 is the french drain elevation described in the embodiment of the present invention；
Fig. 5 is the french drain described in the embodiment of the present invention and water collection pit node structure schematic diagram；
Fig. 6 is the perspective view of the secondary french drain described in the embodiment of the present invention；
Fig. 7 is the construction flow chart of prevention basement water leakage of floor constructing structure of the present invention.
Description of reference numerals:
1-concrete brick；2-graded broken stone；3-crosses water hole；4-geotextiles；5-stiffener net；6-concrete topping；7-water is received
Ji Keng；8-PVC overflow；9-cover plate；10-concrete topping；11-connects hole.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Combination mutually.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score,
Orientation or the position relationship of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark
The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or hint phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can
To express or to implicitly include one or more this feature.In describing the invention, except as otherwise noted, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in figures 1 to 6, a kind of prevention basement water leakage of floor constructing structure, including concrete topping 6 be laid on it
Internal french drain, described french drain is laid on the upper surface of structural concrete base plate 10, and described french drain includes the laying that is parallel to each other
Forming filling slot between the french drain wall and the french drain wall that are built into by concrete brick 1, described french drain wall is provided with some water holes 3 excessively along longitudinal direction,
All it is filled with graded broken stone 2 in described filling slot and in crossing water hole 3, from top to bottom depends between described concrete topping 6 and french drain
Secondary being equipped with stiffener net 5 and geotextiles 4, the end of described french drain connects to have to be collected for the water in french drain is delivered to water
The PVC overflow 8 in hole 7, the top of described water collection pit 7 is covered with cover plate 9.
Described french drain includes main french drain and time french drain being interconnected, the filling slot of described main french drain and the filling of time french drain
Groove is interconnected.
Described main french drain is provided with the french drain wall that three roads are arranged in parallel, is positioned in the french drain wall of centre and arranges connection hole
11, described time french drain is provided with the french drain wall that twice are arranged in parallel.
The intensity level of the concrete brick 1 in the present invention is more than or equal to the intensity level of concrete topping 6.The method that employing is built by laying bricks or stones will
Concrete brick builds one layer by laying bricks or stones along layout drawing.The thickness of concrete brick 1 is 40mm-50mm, and width is 60mm, every 2m-3m in described french drain wall
Arranging water hole 3, the described width crossing water hole 3 is 50mm-80mm, and the width of described filling slot is 150mm-200mm.
Graded broken stone 2 in the present invention selects particle diameter to be that 0.5mm, 1.5mm and 20mm rubble carries out grating, and three kinds of particle diameters are broken
The grating ratio of stone is 20:30:50.Selected rubble must clean up before use, must not be containing tiny aggregate chips
And powder.Its objective is the pipelined channel preventing tiny aggregate chips and powder to be blocked in french drain.
In the present invention, geotextiles 4 is short blended fabric of silk and polyester geotextiles.Low price short blended fabric of silk and polyester geotextiles is selected to cover rubble table
Face, its effect is isolation top casting concrete surface layer 6, it is to avoid concrete slurry causes french drain to block in flowing into metalling, geotextiles width
Spend to cover to the concrete brick of both sides.
Described stiffener net 5 is not less than the reinforcing bar of 8mm by diameter, with the spacing not less than 200mm, the most two-way laying
Formed.Its purpose strengthens the bearing capacity at this position, and reinforcing bar transverse ends is anchored at concrete topping 6 by codes and standards requirement.Mixed
Solidifying soil surface layer 6 preferably selects fine-stone concrete, after above-mentioned end-of-job acceptance(check) completes, carries out concrete placings work.In casting process
It should be noted that the concrete brick of french drain both sides is not destroyed, keep the continued integrity of french drain.
The end of described french drain connects the PVC overflow 8 for the water in french drain is delivered to water collection pit 7, described water
The top of collection pit 7 is covered with cover plate 9.
The design principle of the present invention is: utilize the catch pit in basement engineering design, well, by basement concrete base plate leakage
Water be drained in catch pit, well by french drain is organized, then utilize the precipitation apparatus well of design in catch pit, well to collect
Percolating water get rid of.
The construction technology of above-mentioned prevention basement water leakage of floor constructing structure, shown in figure Fig. 7, comprises the steps:
(1) structural concrete base plate cleans: ash is landed in cleaning structural concrete backplate surface foreign material and removing, cleaned
Whether journey there are crack, and labelling by observation structure concrete floor surface at any time, have seen whether that water oozes out, especially at concrete wall
The positions such as plate and close exterior wall, conscientiously observe, and generally these positions are often the weak spot of basement leakage；
(2) french drain unwrapping wire: carry out line setting according to french drain layout drawing, and at the crack that step (1) marks and
Inside outer wall of basement, post-cast strip, the structural concrete base plate thickness place of changing and be likely to occur the weak part of percolating water
Increasing the laying of french drain, and be together in series with neighbouring french drain, form the most unobstructed pipelined channel, final remittance is to main blind
Ditch enters in water collection pit.
(3) french drain is laid: build french drain wall and water hole is crossed in indwelling, mixed according to grating ratio by rubble, clean up
After be filled with in filling slot；Graded broken stone is before use, it should all clean with water, by the most clear for drifting along of stone surface
Wash clean, in keeping french drain, flowing water is unimpeded, and is stirred by rubble.
(4) geotextiles is covered: select polypropylene short silk geotextiles to be covered in metalling surface, and cover the french drain wall of both sides,
Geotextiles lap-joint should be not less than 100mm, and its effect is to stop concrete slurry to penetrate in metalling to block french drain passage.
(5) stiffener colligation: according to specification and the spacing of corresponding Structure Calculation reinforcing bar, by reinforcing steel bar laying in geotextiles
Upper surface forms stiffener net, and ensures that french drain top does not affect normal bearing capacity because cross section diminishes.
The reinforcing bar at this position its be mainly used for being covered in above french drain, increase the bearing capacity of this position concrete, it is to avoid because of concrete
Cross section diminishes and affects its normal load, therefore, before the reinforcing bar at this position uses, should be obtained by corresponding Structure Calculation
Bar gauge and spacing are arranged, to ensure that this position does not affect normal bearing capacity because cross section diminishes.
(6) the pouring of concrete topping or bed course: after french drain, geotextiles, reinforcing bar reinforcing mat acceptance(check), by concrete
Pour and form concrete topping or bed course on the net in stiffener.
It is noted that do not destroy completed french drain during pouring concrete, and strengthen protecting work.Make completed blind
Ditch is unimpeded.
It addition, can according to design and code requirement before concrete topping pours stiffener on the net side colligation anticracking steel
Muscle prevents its concrete from ftractureing.
(7) partition seam cutting, concrete curing: carry out cut-off rule cutting on the concrete topping surface poured, and carry out
Concrete curing.
It addition, the laying of basement french drain should meet the requirement of the water percolating capacity of prediction, for outer wall of basement, post-cast strip etc.
It is possible that the position of infiltration wants emphasis to arrange, should suitably encrypt layout if necessary.
Answering in priority control french drain without other foreign material in work progress, block up without what, in holding french drain, current are unimpeded.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a prevention basement water leakage of floor constructing structure, it is characterised in that: this constructing structure includes concrete topping and paving
If french drain therein, described french drain is laid on the upper surface of structural concrete base plate, and described french drain includes the paving that is parallel to each other
If french drain wall and french drain wall between form filling slot, described french drain wall some crosses water hole, described filling slot along being longitudinally provided with
In and cross in water hole and be all filled with graded broken stone, be equipped with reinforcement steel between described concrete topping and french drain the most successively
Muscle net and geotextiles, the end of described french drain connects with water collection pit.
Prevention basement water leakage of floor constructing structure the most according to claim 1, it is characterised in that: described french drain includes phase
Intercommunicated main french drain and time french drain, the filling slot of described main french drain is interconnected with the filling slot of time french drain.
Prevention basement water leakage of floor constructing structure the most according to claim 2, it is characterised in that: described main french drain is arranged
Having the french drain wall that three roads are arranged in parallel, be positioned in the french drain wall of centre and arrange connection hole, described time french drain is provided with twice
French drain wall arranged in parallel.
Prevention basement water leakage of floor constructing structure the most according to claim 1 and 2, it is characterised in that: described french drain wall
By the brick one-tenth of some concretes, the thickness of described concrete brick is 40mm-50mm, and width is 60mm, arranges every 2m-3m in described french drain wall
Crossing water hole, the described width crossing water hole is 50mm-80mm, and the width of described filling slot is 150mm-200mm.
Prevention basement water leakage of floor constructing structure the most according to claim 4, it is characterised in that: described graded broken stone selects
Being that 0.5mm, 1.5mm and 20mm rubble carries out grating with particle diameter, the grating ratio of three kinds of Stones is (15-25): (25-
35): (40:60), it is preferable that described grating ratio is 20:30:50.
Prevention basement water leakage of floor constructing structure the most according to claim 4, it is characterised in that: described geotextiles is short
Blended fabric of silk and polyester or short silk polypropylene geotextile.
Prevention basement water leakage of floor constructing structure the most according to claim 4, it is characterised in that: the intensity of described concrete brick
Value is more than or equal to the intensity level of concrete topping.
Prevention basement water leakage of floor constructing structure the most according to claim 1, it is characterised in that: described stiffener net
By the diameter reinforcing bar not less than 8mm, with the spacing not less than 200mm, the most two-way laying is formed.
Prevention basement water leakage of floor constructing structure the most according to claim 1, it is characterised in that: the end of described french drain
Connecting has the PVC overflow for the water in french drain is delivered to water collection pit, the top of described water collection pit to be covered with cover plate.
10. a construction technology for prevention basement water leakage of floor constructing structure the most described in claim 1-9, its feature
It is: this technique comprises the steps:
(1) structural concrete base plate cleans: ash is landed in cleaning structural concrete backplate surface foreign material and removing, in cleaning process
Whether there are crack, and labelling by observation structure concrete floor surface at any time, to have seen whether that water oozes out；
(2) french drain unwrapping wire: carry out line setting according to french drain layout drawing, and at the crack that step (1) marks and underground
Room inner side of outer wall, post-cast strip, the structural concrete base plate thickness place of changing and be likely to occur percolating water weak part increase
The laying of french drain, and be together in series with neighbouring french drain, forming the most unobstructed pipelined channel, water imports water collection the most at last
In hole；
(3) french drain is laid: build french drain wall and water hole is crossed in indwelling, mixed according to grating ratio by rubble, will after cleaning up
It is filled in filling slot；
(4) geotextiles is covered: geotextiles is covered in graded broken stone upper surface, and covers the french drain wall of both sides；
(5) stiffener colligation: according to specification and the spacing of corresponding Structure Calculation reinforcing bar, by reinforcing steel bar laying table in geotextiles
Face forms stiffener net, and ensures that french drain top does not affect normal bearing capacity because cross section diminishes；
(6) the pouring of concrete topping or bed course: after french drain, geotextiles, reinforcing bar reinforcing mat acceptance(check), by concreting
Concrete topping or bed course is formed on the net in stiffener；
(7) partition seam cutting, concrete curing: carry out cut-off rule cutting on the concrete topping surface poured, and it is foster to carry out concrete
Protect.
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| CN201610855042.2A CN106245688B (en) | 2016-09-26 | 2016-09-26 | One kind prevention basement water leakage of floor constructing structure and its construction technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948383A (en) * | 2017-05-18 | 2017-07-14 | 中建局集团第三建筑有限公司 | Water seepage treatment structure for surface of foundation slab and construction method thereof |
| CN108643483A (en) * | 2018-07-10 | 2018-10-12 | 江苏万象建工集团有限公司 | A kind of basement waterproofing system |
| CN108729475A (en) * | 2017-04-25 | 2018-11-02 | 中国二十冶集团有限公司 | Underground structure multi-layer combined type expansion joint waterproof construction method |
| CN109457736A (en) * | 2018-11-16 | 2019-03-12 | 中铁二十三局集团有限公司 | One kind being used for underground engineering side wall and bottom plate water seepage treatment method |
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| US5845456A (en) * | 1989-03-06 | 1998-12-08 | Read; Robert R. | Basement waterproofing |
| CN201125391Y (en) * | 2007-09-11 | 2008-10-01 | 中国建筑第六工程局有限公司 | Basement waterproofing drainage structure |
| CN102720217A (en) * | 2012-06-12 | 2012-10-10 | 浙江城建建设集团有限公司 | Basement watertightness structure and construction method thereof |
| CN203531009U (en) * | 2013-10-21 | 2014-04-09 | 中国建筑第二工程局有限公司 | Basement bottom plate rubble layer hydrophobic structure |
| CN103821181A (en) * | 2014-02-28 | 2014-05-28 | 中天建设集团有限公司 | Basement bottom plate water drainage layer construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5845456A (en) * | 1989-03-06 | 1998-12-08 | Read; Robert R. | Basement waterproofing |
| CN201125391Y (en) * | 2007-09-11 | 2008-10-01 | 中国建筑第六工程局有限公司 | Basement waterproofing drainage structure |
| CN102720217A (en) * | 2012-06-12 | 2012-10-10 | 浙江城建建设集团有限公司 | Basement watertightness structure and construction method thereof |
| CN203531009U (en) * | 2013-10-21 | 2014-04-09 | 中国建筑第二工程局有限公司 | Basement bottom plate rubble layer hydrophobic structure |
| CN103821181A (en) * | 2014-02-28 | 2014-05-28 | 中天建设集团有限公司 | Basement bottom plate water drainage layer construction method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729475A (en) * | 2017-04-25 | 2018-11-02 | 中国二十冶集团有限公司 | Underground structure multi-layer combined type expansion joint waterproof construction method |
| CN106948383A (en) * | 2017-05-18 | 2017-07-14 | 中建局集团第三建筑有限公司 | Water seepage treatment structure for surface of foundation slab and construction method thereof |
| CN108643483A (en) * | 2018-07-10 | 2018-10-12 | 江苏万象建工集团有限公司 | A kind of basement waterproofing system |
| CN108643483B (en) * | 2018-07-10 | 2023-12-08 | 江苏万象建工集团有限公司 | Basement waterproof system |
| CN109457736A (en) * | 2018-11-16 | 2019-03-12 | 中铁二十三局集团有限公司 | One kind being used for underground engineering side wall and bottom plate water seepage treatment method |
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| Publication number | Publication date |
|---|---|
| CN106245688B (en) | 2018-05-08 |
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