CN102409692A - Anti-seepage protection method at archaeological excavation site - Google Patents
Anti-seepage protection method at archaeological excavation site Download PDFInfo
- Publication number
- CN102409692A CN102409692A CN2011103586641A CN201110358664A CN102409692A CN 102409692 A CN102409692 A CN 102409692A CN 2011103586641 A CN2011103586641 A CN 2011103586641A CN 201110358664 A CN201110358664 A CN 201110358664A CN 102409692 A CN102409692 A CN 102409692A
- Authority
- CN
- China
- Prior art keywords
- slotted eye
- antiseepage
- spot
- water
- guard method
- 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.)
- Granted
Links
Images
Landscapes
- Road Paving Structures (AREA)
- Revetment (AREA)
Abstract
The invention relates to an anti-seepage protection method at an archaeological excavation site in the field of historic preservation, comprising the steps of: forming a narrow vertical slot with the width of 10-30cm around the archaeological site by utilizing a slot forming appliance, wherein the vertical slot downwards straightly cuts in an impermeable clay layer from a backwater stratum, the depth can be up to above 10 m; pouring and filling rigid or flexible waterproof pulp materials in the slot; successively and repeatedly pouring for many times after the poured waterproof pulp materials are completely solidified till a specified altitude is reached and the slot is full; and finally solidifying to form a thin underground anti-seepage curtain wall. In the method, a self-made splitter and a smashing device are used as the slot forming appliance. The method has the advantages that: all transverse seepage water can be kept out of the wall by utilizing the anti-seepage curtain wall; the water is thoroughly stopped; the anti-seepage rate is up to 95-100%; the shearing strength and the waterproof density are increased by utilizing the rigidity and flexibility combined wall; and the construction brings little damage to the historic site to ensure that the puzzle that other anti-seepage technologies bring large damage to the historic site is solved.
Description
Technical field
The present invention relates to the on-the-spot antiseepage guard method of a kind of archaeological excavation in the historical relic's protection field, this method comprises to be made slotted eye, in slotted eye, annotates whole process flow such as filling out the water resistant solution material, the invention still further relates to the employed slotted eye utensil of making in this method.
Background technology
China is one of four big ancient civilized countries, the world, and underground site of ancient culture remains number is in necessarily, and they are important component parts of Chinese elite cultural heritage, also are the symbols of Chinese civilization.Develop rapidly and the great attention of country along with nation-building to historical relic; The whole nation has numerous archaeological excavations and many important historical relics to be unearthed every year; Wherein, need original appearance permanently to be kept in the archaeological excavation scene, in the hope of building the museum as immovable traces historical relics such as ancient rice field, ancient palaces; Be convenient to academic research and show, promote tourist industry and development of economic construction with visiting.
In this literary composition, the archaeological excavation scene means that new and old archaeological excavation is on-the-spot, comprises the permanent immovable traces historical relics such as the ancient sacrificial altar in the archaeological excavation scene, ancient rice field, ancient tomb, ancient palace that are retained in.
Archaeological excavation on-the-spot (it is on-the-spot to be called for short archaeology, down with) is hole, spys side shape, generally is lower than all around face of land number meter, and the person reaches more than 10 meters deeply.Surface rain all around and farmland are dipped under water and form the backwater stratum behind the impervious stratum, again through backwater stratum and the horizontal seepage flow of other medium to the archaeology scene, thereby cause historical relic to endanger, the most serious with rainy south especially.In No. six, mountain, the top of city wall, Lixian County, the Hunan site of an ancient city archaeology scene protection district, be the precious traces historical relics such as Taegu piece rice terrace, sacrificial altar, head's tomb before more than 6,000 year, about 700 square metres of its area once did to dredge antiseepages processing such as stream, geomembrane water proof.On June 15th, 2011, a heavy rain caused a large amount of seepage waters to pour in the urban conservation area, effluxed with three small-sized electric water pumpers, just exempted from harm.Yet the narrow groove grouting water-tight that an archaeology scene protection district in these ruins once carried out similar this technology is handled, thereby safe and sound.
Because the harm of infiltration causes the hole body avalanche of hole, spy side, weeds, insect grow, and the weathering of soil property humic destroys until historical relic.So,, must at first carry out antiseepage and handle in order the scene of engaging in archaeological studies to be carried out the permanent and displaying property protection of original appearance.
Only because of shielded archaeology scene, everywhere all be positioned at this ruins cultural relic the thickest, enrich the location most, if, will cause the loss of " crime property " to cultural relic with the on-the-spot antiseepage of engaging in archaeological studies of present existing other project seepage controlling technology.At that time, we only knew hand excavation's walling seepage control technique, studied based on this.In the data of consulting afterwards, found the high-pressure slip-casting seepage control technique, the more on-the-spot antiseepage of incompatible archaeology because the slurry material receives the hyperbar effect and infiltrates into cultural layer, can cause large-area cultural layer to destroy.So the on-the-spot antiseepage of engaging in archaeological studies at present is domestic and even international all still unresolved good technical barrier.
Summary of the invention
The present invention is directed to the above-mentioned technical barrier that prior art exists, provide a kind of archaeological excavation on-the-spot antiseepage guard method, mainly adopt narrow groove slurry injection technique.
The on-the-spot antiseepage guard method of archaeological excavation of the present invention; That adopts oneself development makes the slotted eye utensil, makes the vertical slotted eye of narrow type together around archaeology around on-the-spot, and vertical slotted eye down vertical cut is gone into impervious clay blanket; In slotted eye, annotate then and fill out different water resistant solution materials; The water resistant solution material fills up all spaces in the said slotted eye and the soil body, under physics chemical action, solidifies calculus, forms slim underground antiseepage curtain wall together.
Select the different in width of slotted eye according to different geology.For normal stratum, the wide 10-15cm of said slotted eye mouth, for stratum inferior, the wide 30cm that is no more than of said slotted eye mouth.The degree of depth of vertical slotted eye can reach more than the 10m.Said water resistant solution material is rigidity or flexible coercibility water resistant solution material.
The present invention also provides the used slotted eye utensil of making when implementing said antiseepage guard method, comprises that splitter hits device with pounding.
(1) splitter: process by the steel board welding.Splitter is perpendicular cuboid, long 80-700cm, wide 40-120cm, thick 10-30cm.The upper end of splitter is the device top, and the top is provided with two suspension ring, and the lower end is the device mouth, and the sharp and blunt-ended root of device mouth is decided according to geology intensity.Empty in the body, respectively be provided with the guide peg hole of vertically running through about body is interior, two guide pegs pass said guide peg hole respectively.
(2) pound and hit device: process by steel board.Pound and hit device and be perpendicular cuboid, long 60-300cm, wide 30-50cm, thick 10-30cm.Pound that to hit device be entity, the device mouth indention of lower end, the top is provided with two suspension ring; Respectively be provided with the guide peg hole of vertically running through about in the body, two guide pegs pass said guide peg hole respectively.
Antiseepage guard method of the present invention, great advantage is: the antiseepage curtain wall can be intercepted all external water bodys outside the urban conservation area, and sealing is thorough, and the sealing rate reaches 95-100%, really reaches the purpose of water seepage prevention and protection historical relic; And construction is little to ground, ruins damage layer, has solved other seepage control technique big key technical problem is destroyed in ruins.
Description of drawings
Fig. 1 is the generalized section of stratum of the present invention and impervious wall.
Fig. 2 a-2d is the structural representation of splitter of the present invention.
Fig. 3 a-3d is the structural representation that hits device of pounding of the present invention.
Fig. 4 is the process chart of antiseepage guard method of the present invention.
Among the figure:
Impervious barrier 2-backwater stratum, 1-face of land 3-argillic horizon 4-farinose argillic horizon
5-sandy gravel stratum 6-antiseepage curtain wall 7-splitter 71-suspension ring
72-guide peg hole 73-guide peg 8-is pounded and is hit device
The specific embodiment
Below in conjunction with accompanying drawing, further detailed description is done in the on-the-spot antiseepage guard method of archaeological excavation of the present invention.
Fig. 1 is the on-the-spot stratigraphic section sketch map of general archaeological excavation.As shown in the figure, the on-the-spot stratum of archaeological excavation is divided into face of land impervious barrier 1, backwater stratum 2, argillic horizon 3, farinose argillic horizon 4 and sandy gravel stratum 5.The on-the-spot antiseepage guard method of archaeological excavation of the present invention can be implemented in such stratum.
At first, adopt around on-the-spot around archaeology and to make the slotted eye utensil and make the vertical slotted eye of narrow type together, vertical slotted eye from the backwater stratum 2 (being the human culture accumulation horizon) on the face of land down vertical cut go into fluid-tight argillic horizon 3; Then, in making slotted eye, annotate and fill out the water resistant solution material, the water resistant solution material fill up the space in the slotted eye of making and the soil body; The water resistant solution material solidifies calculus under physics and chemical action, form slim underground antiseepage curtain wall 6 together at last, and it can be intercepted all external water bodys outside the urban conservation area.
Select the different in width of slotted eye according to different geology.For normal stratum, the wide 10-15cm of said slotted eye mouth, for stratum inferior, the said slotted eye mouth the wideest wide 30cm that is no more than.The degree of depth of vertical slotted eye can reach more than the 10m.
As annotating underfill material, said water resistant solution material is rigidity or flexible coercibility water resistant solution material.Specifically:
(1) rigid material
With cement, water glass is major ingredient, and coarse sand, gravel are aggregate, and waterproof agent, accelerating admixture are that Admixture is formulated.Wherein, cement adopts 425 above label portland cements; The modulus of water glass is 2.5-3.0, and concentration is 43-45 ° of Be.Aggregate size requires: the fines particle diameter is 0.1-3.0mm, and like coarse sand, its mud content must not be greater than 3%; Coarse aggregate size is 20-40mm, and like river gravel, rubble, the aggregate footpath is maximum must not to surpass 1/2 of the minimum position of concrete sectional dimension, and must not surpass 50mm, and its mud content can not be greater than 1-2%.More on the Admixture market, for example, waterproof agent has the iron chloride permeability-reducing admixture, and accelerating admixture has rapid hardening MNC-A super instant coagulant etc., can select as required.
The amount ratio of cement, water glass, coarse sand, gravel is 1: 0.015: 2.5: 4.0, and the ratio of Admixture is used according to product description separately and is got final product.
When notes in slotted eye are filled out rigid waterproofing slurry material,, then need vertically serve as a contrast, to increase the firmness of antiseepage curtain wall with gauze wire cloth for stratum inferior.
(2) flexible material
With pitch, polyvinyl is major ingredient, and mineral powder is an inserts, and coal tar or diesel oil are thinner, through boiling, form with mechanical agitation.
Here, pitch is to be formed by petroleum coal pitch (accounting for 70%) and solid coal tar pitch (accounting for 30%) modification.Polyvinyl (HDPE) is that former base material or regeneration, waste and scrap all can.Mineral powder is advisable with granite powder or French chalk, fineness 120180 orders.Thinner is advisable with coal tar or diesel oil.
Wherein, pitch, mineral powder, poly amount ratio are 1: 2.2: 0.015; The thinner non-quantitative should be confirmed according to the solid-liquid degree of major ingredient pitch, is advisable to be prone to construction.
The heating construction requirement: use naked light stove and surround shape floor iron pot to be heating appliances, heating-up temperature is 130-170 ℃.After treating pitch dissolving 70%, put into polyvinyl, treat to dissolve fully, put into inserts at last, utilize electric blender to mix thoroughly and get final product.In the heating process, can add an amount of thinner according to the solid-liquid degree of major ingredient pitch.
When notes are filled out flexible anti water slurry material in slotted eye,, then need vertically serve as a contrast, to increase the firmness of antiseepage curtain wall with glass fabric for stratum inferior.
(3) rigid and flexible unification body of wall
Upright decking is divided into sipes and narrow groove two parts with slotted eye in the middle of said slotted eye, in sipes, annotates to fill out and states rigid material, solidifies the demoulding, in narrow groove, annotates to fill out and states flexible material, and the general wide 2-5cm of narrow groove forms hard and soft unification body of wall.
Fig. 2 a-2d is the structural representation of splitter of the present invention, is respectively front view, left pseudosection, right pseudosection and face upwarding section.Illustrated is 150-60-10 type splitter 7 of the present invention, and this splitter is processed by the steel board welding, is perpendicular rectangle generally, long 150cm, wide 60cm, thick 10cm.The upper end of splitter is the device top, and the top is provided with two suspension ring 71, and the lower end is the device mouth, and the sharp and blunt-ended root of device mouth is decided according to geology intensity.Empty in the body, respectively be provided with 72, two guide pegs 73 in guide peg hole that vertically run through about body is interior and pass said guide peg hole respectively.
Fig. 3 a-3d is the structural representation that hits device of pounding of the present invention, is respectively front view, A-A sectional drawing, B-B sectional drawing and C-C sectional drawing.Illustrated is that 100-40-10 type of the present invention is pounded and hit device 8, and this is pounded and hits device and processed by steel board, is perpendicular rectangle generally, long 100cm, wide 40cm, thick 10cm.Pound that to hit device be entity, the device mouth indention of lower end, the top is provided with two suspension ring; Respectively be provided with the guide peg hole of vertically running through about in the body, two guide pegs pass said guide peg hole respectively.
Above-mentioned guide peg is the round steel of two Φ 15mm, with splitter or pound and hit device and vertically go here and there on two round steel.Insert in the stratum lower end of two round steel, and the upper end is fixed on the power tripod, so that the pore-creating utensil goes up and down by a direction, guarantees the pore-creating quality.
With reference to Fig. 4, introduce the technological process of antiseepage guard method of the present invention below.
(1) hydrogeology exploration
This is very important first working procedure.According to drafting the slotted eye layout, with the exploration of archaeology luoyang spade inspecting hole, understanding geology and underground backwater stratum, location, and plot the exploration drawing, for writing engineering proposal and construction provides foundation.
(2) project planning scheme is write
The drawing that exploration provides according to hydrogeology is to confirm the slotted eye placement scheme; According to different geology, select flute profile to fill out the slurry material, and engineering quantity and cost are estimated etc. with different notes.
(3) constructure scheme is write
Write the concrete detailed rules and regulations of construction, comprise construction organization and management, safety measure etc.
(4) prepare before the worker
Material is bought in pore-creating utensil development, road, water, electric threeway, preparation such as the job site is smooth.
(5) slotted eye layout unwrapping wire
The flute profile different according to different geological design promptly selected the width and the degree of depth of slotted eye.
(6) pore-creating
With pore-creating utensil segmentation making hole construction.The power set of this moment just can satisfy the construction needs after adopting HSDJ130 type tripod pile driver to reequip a little, and frame is high 3.5 meters, 4 kilowatts of power, 1 ton of elevator tractive force, be used for splitter, pound and hit device.Non-with the stone roller body, utilize splitter, pound the own wt that hits device and get final product.According to geology intensity, select splitter, pound the weight of hitting device.
(7) Gu Bi, bottom land cleaning
After the grooving, the Gu Bi processing must be carried out with the cement clay mortar in stratum inferior, and bottom land muddy water is cleared up acceptance(check).
(8) prepare before the slip casting
Underfill material---water resistant solution material is annotated in preparation, and it is on-the-spot to be transported to archaeology, construction tool puts in place and technology, Security Officer to the hilllock point etc., completion preparation.
(9) notes are filled out
Annotate by above-mentioned technical requirements and to fill out the water resistant solution material.
(10) solidify
The water resistant solution material of filling out of annotating solidifies gradually.
(11) the multiple notes
Wait to annotate to carry out after the water resistant solution material of filling out solidifies fully annotating the second time and fill out, till elevation that reaches regulation and slotted eye notes fill up.
(12) sealing groove mouth
Seal processing, implement to seal protection through propping up geotextiles or geomembrane or matting layer (ramming soil) or topping (cement concrete sclerosis).
(13) the groove check that is filled with water outward
Outside ring antiseepage curtain wall, a week establish the ditch, 78 hours even the examination that is filled with water for more time see if there is the seepage phenomenon in the ditch.
Claims (10)
1. on-the-spot antiseepage guard method of archaeological excavation may further comprise the steps:
A. utilize and make the slotted eye utensil and make the vertical slotted eye of narrow type together around on-the-spot around archaeology, this vertical slotted eye from backwater stratum (2) down vertical cut go into fluid-tight argillic horizon (3);
B. in said slotted eye, annotate and fill out rigid waterproofing slurry material or flexible anti water slurry material, perhaps hard and soft unification water resistant solution material;
C. wait to annotate and repeatedly annotate again after the water resistant solution material of filling out solidifies fully, until the elevation that reaches regulation and said slotted eye annotate fill up till, the final set calculus forms slim underground antiseepage curtain wall (6) together.
2. the on-the-spot antiseepage guard method of archaeological excavation according to claim 1 is characterized in that: after step a formed slotted eye, the Gu Bi processing must be carried out with the cement clay mortar in stratum inferior, and cleaning bottom land muddy water.
3. the on-the-spot antiseepage guard method of archaeological excavation according to claim 1 is characterized in that: in step b, when notes in said slotted eye were filled out rigid waterproofing slurry material, said antiseepage curtain wall needed vertically serve as a contrast with gauze wire cloth; When notes were filled out flexible anti water slurry material in said slotted eye, said antiseepage curtain wall needed vertically serve as a contrast with glass fabric; In said slotted eye, annotating when filling out hard and soft unification water resistant solution material; Upright decking is divided into sipes and narrow groove two parts with slotted eye in the middle of said slotted eye, in sipes, annotates earlier and fills out rigid waterproofing slurry material and solidify the demoulding; In narrow groove, annotate then and fill out flexible anti water slurry material, form the body of wall of hard and soft unification.
4. according to claim 1, the on-the-spot antiseepage guard method of 2 or 3 described archaeological excavations; It is characterized in that: after step c; Seal processing, through geotextiles, geomembrane, or soil padding is rammed in the shop or cement concrete sclerosis topping implements to seal protection.
5. the on-the-spot antiseepage guard method of archaeological excavation according to claim 4; It is characterized in that: said seal treatment step after, carry out the groove check that is filled with water outward, promptly outside ring antiseepage curtain wall, a week establish the ditch; 78 hours even the examination that is filled with water for more time see if there is the seepage phenomenon in the ditch.
6. the on-the-spot antiseepage guard method of archaeological excavation according to claim 5; It is characterized in that: said rigid waterproofing slurry material is a major ingredient with cement and water glass; With coarse sand and gravel is aggregate; With waterproof agent and accelerating admixture is that Admixture is formulated, and wherein the amount ratio of cement, water glass, coarse sand, gravel is 1: 0.015: 2.5: 4.0, and Admixture is an amount of.
7. the on-the-spot antiseepage guard method of archaeological excavation according to claim 6; It is characterized in that: said flexible anti water slurry material is a major ingredient with pitch, polyvinyl; Mineral powder is an inserts; Coal tar or diesel oil are that thinner boils to stir and forms, and its medium pitch, mineral powder, poly amount ratio are 1: 2.2: 0.015, and thinner is an amount of.
8. according to the on-the-spot antiseepage guard method of each described archaeological excavation of claim 5-7, it is characterized in that: the wide 10-30cm of said slotted eye mouth, the degree of depth up 10m of said slotted eye.
9. the on-the-spot antiseepage guard method of archaeological excavation according to claim 8, it is characterized in that: the said slotted eye utensil of making comprises splitter (7), and this splitter is perpendicular cuboid generally; Long 80-700cm, wide 40-120cm, thick 10-30cm; The upper end of this splitter is the device top, and the top is provided with two suspension ring (71), and the lower end is the device mouth; Empty in the body, respectively be provided with the guide peg hole of vertically running through (72) about body is interior, two guide pegs (73) pass said guide peg hole (72) respectively.
10. the on-the-spot antiseepage guard method of archaeological excavation according to claim 9 is characterized in that: the said slotted eye utensil of making also comprises pounding and hits device (8), and this is pounded and hits device and be perpendicular cuboid generally; Long 60-300cm, wide 30-50cm, thick 10-30cm; This is pounded, and to hit device be entity, the device mouth indention of lower end, and the top is provided with two suspension ring; Respectively be provided with the guide peg hole of vertically running through about in the body, two guide pegs pass said guide peg hole respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110358664.1A CN102409692B (en) | 2011-11-14 | 2011-11-14 | Anti-seepage protection method at archaeological excavation site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110358664.1A CN102409692B (en) | 2011-11-14 | 2011-11-14 | Anti-seepage protection method at archaeological excavation site |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102409692A true CN102409692A (en) | 2012-04-11 |
| CN102409692B CN102409692B (en) | 2014-10-29 |
Family
ID=45912012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110358664.1A Active CN102409692B (en) | 2011-11-14 | 2011-11-14 | Anti-seepage protection method at archaeological excavation site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102409692B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839979A (en) * | 2012-09-26 | 2012-12-26 | 中国国家博物馆 | Method for rebuilding ancient well site in controllable archaeology model test field |
| CN104200762A (en) * | 2014-09-19 | 2014-12-10 | 南京博物院 | Cultural-relic exhibition method combined with scientific archaeology research |
| CN107574831A (en) * | 2017-09-04 | 2018-01-12 | 江苏省岩土工程公司 | Narrow slot seepage proof curtain forming construction method thereof and special equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101130993A (en) * | 2007-07-16 | 2008-02-27 | 常州工学院 | Cut-off wall slurry material and wall building technique |
-
2011
- 2011-11-14 CN CN201110358664.1A patent/CN102409692B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101130993A (en) * | 2007-07-16 | 2008-02-27 | 常州工学院 | Cut-off wall slurry material and wall building technique |
Non-Patent Citations (1)
| Title |
|---|
| 毛永熙: "《渗流计算分析与控制》", 31 May 1990, 北京市：水利电力出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839979A (en) * | 2012-09-26 | 2012-12-26 | 中国国家博物馆 | Method for rebuilding ancient well site in controllable archaeology model test field |
| CN104200762A (en) * | 2014-09-19 | 2014-12-10 | 南京博物院 | Cultural-relic exhibition method combined with scientific archaeology research |
| CN107574831A (en) * | 2017-09-04 | 2018-01-12 | 江苏省岩土工程公司 | Narrow slot seepage proof curtain forming construction method thereof and special equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102409692B (en) | 2014-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103485336A (en) | Drilling pile drilling construction method of bead-type karst area | |
| CN101914918B (en) | High-steep side slope and intensely weathered bed rock solid waste landfill site seepage prevention structure and treatment method thereof | |
| CN103526748A (en) | Technology for constructing deepwater bridge underwater pier large-diameter bored piles in bead-stringed type karst areas | |
| CN105569071B (en) | A kind of slip casting under water of cement-based material or mud jacking block ground mass foundation construction | |
| CN104746505A (en) | Method for treating miscellaneous fill foundation combing dynamic consolidation and compaction grouting | |
| CN109281330A (en) | A kind of osmotic control method | |
| CN102409692B (en) | Anti-seepage protection method at archaeological excavation site | |
| CN102235007B (en) | Method for supporting deep foundation with upper nail-lower pile combination | |
| CN107816050A (en) | A kind of concrete cofferdam and earth rock cofferdam combined cofferdam and its construction method | |
| CN105971638A (en) | Application of WSS construction method in shield tool changing reinforcement of water-rich sand layer | |
| CN106337422B (en) | A method of processing Collapsible Loess District fill foundation | |
| CN101481913A (en) | Construction method of rock-socketed underground continuous wall punching slot section | |
| CN209652954U (en) | GCL bentonite waterproof pad combines TGXG grouting water-tight and reinforces powdery soil slope | |
| CN106812147A (en) | A kind of sand-pebble layer protects spring inverted well construction method | |
| CN108316237B (en) | Revetment retaining wall | |
| CN103821140B (en) | A kind of construction method of reinforcing soft foundation | |
| CN203905032U (en) | Large pond cutting protection structure | |
| CN105714634A (en) | Construction method of soil-rock geological roadbed | |
| CN109537612A (en) | A kind of porous impact stirring diaphram wall Barrier Technology and its construction method | |
| CN105220696B (en) | Rotating-milling formula deep-layer stirring construction method of enclosure structure | |
| CN205296194U (en) | Rich irrigated land layer undercut tunnel interlock pipe curtain | |
| CN103821106B (en) | Small-sized fishing port and channel revetment structure | |
| CN209523186U (en) | A kind of continuous underground wall structure for strong runoff solution cavity | |
| Sharvit et al. | ‘Akko, the Southern Seawall | |
| CN105714846B (en) | A kind of gravity retaining wall and its construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |