CN104695443A - Cut-off wall construction technology - Google Patents
Cut-off wall construction technology Download PDFInfo
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- CN104695443A CN104695443A CN201510007513.XA CN201510007513A CN104695443A CN 104695443 A CN104695443 A CN 104695443A CN 201510007513 A CN201510007513 A CN 201510007513A CN 104695443 A CN104695443 A CN 104695443A
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Abstract
The invention provides a cut-off wall construction technology. The technology comprises steps as follows: firstly, pouring holes are drilled in two sides of a pipeline respectively, the pouring holes are filled with rubble to form a rubble layer, a liquid injection pipe is embedded in the rubble layer, and the rubble layer is filled with filler; then an alkali liquid is prepared according to liquid preparation scales on liquid preparation equipment and a liquid preparation standard recorded on a liquid preparation nameplate, finally, a liquid delivery pipe is connected between a valve and the liquid injection pipe, the alkali liquid is guided into the pouring holes through cooperation of the valve, the liquid delivery pipe with the liquid injection pipe, so that the pouring holes are cured and a cut-off wall is formed. The construction technology is convenient and low in cost, and water and soil erosion to oil and gas pipeline trenches in loess areas can be effectively controlled.
Description
Technical field
The present invention relates to petroleum pipeline protection field, particularly relate to a kind of cut-off wall construction technology.
Background technology
No matter from deposit thickness or distribution, the Canal in Loess Area of China is all most typical sensitive area in the whole world, is also one of the whole nation and even soil erosion is the most serious in the world area.China's loess continuous area about 440,000 square kilometres, is more common in the ground such as Qinghai, Gansu, Ningxia, Shanxi, Shaanxi, Henan.Existing many long-distance oil & gas pipeline pass through above-mentioned Canal in Loess Area, as a line of transferring natural gas from the west to the east, two wires, Ma Huining crude oil pipeline, puckery peaceful blue gas pipeline, the long processed oil pipeline of blue Zheng, capital, Shan gas pipeline etc.These pipelines are embedded in fine grain powder loess mostly; its concreteness is poor; vertical joints development; meet water and saturated yielding and disintegration easily occur; the ability of the erosion of water resistant stream and erosion of diving is weak, and water stability is poor, is very easily taken away by potamic transport; cause soil erosion, easily form pipe trench and subside and all catenate holes of pipe.Simultaneously due to the construction of pipeline, make the backfill short texture in pipe trench, the degree of consolidation is poor, and partial sector is piled up in pipe trench in prose style free from parallelism shape substantially, and the backfill that these are loosely organized, the degree of consolidation is poor is met water electrode and easily occurred along pipe trench direction along the soil erosion of stretching.Especially the sloping area of certain slope is being had, when the irrigated farmland of larger catchment area or sheet is arranged at top, pipe trench easily along slope section after Atmospheric precipitation, irrigation water permeate the ground flows, and it is larger by the hydraulic gradient of slope gesture generation, seepage effect is strong, empty the pipe trench soil body and cause a large amount of water and soil to run off along slope, causing pipeline to reveal pipe or unsettled.In addition, in mima type microrelief, near some segment of pipeline approach, immersion due to surface water or irrigation water defines the negative land form of depression, and surface water body just converges to pipe trench direction, and the final strand current that formed pour into the soil body loose in pipe trench both sides or pipe trench, form pipe trench by the effect such as saturated yielding of dissolving, diving erosion and loess self to subside disaster, cause pipe trench to sink to subsiding, make pipeline that dew pipe or unsettled phenomenon occur, serious threat is caused to the normal operation of pipeline.According to PetroChina Company Limited. pipeline company head celebrating oil transportation gas branch company Flood repairing statistics in 2012, the pipe trench caused because of the soil erosion of loess pipe trench subsides and unsettled threat has 72 places, accounts for 39% of Flood disaster sum.The pipe trench that length 100 ~ 200m once occurred the sloping areas such as puckery peaceful blue line K762+626, K836+600, K076+600 subsides, serious threat pipe safety.
The poor water stability of loess makes pipe trench soil erosion become easily abnormal, and the seepage flow of pipe trench water is then the immediate cause forming soil erosion.Therefore the seepage flow of obstructing tube ditch-water can effectively prevent erosion, and reduces and pipeline dew pipe or unsettled risk occur.Building cut-off wall is the simple and effective way of obstructing tube ditch soil erosion, and such as, in " pipe-line line project water conservancy project design protection specification " (SY/T 6793), regulation should be chosen according to geology, landform and hydrologic condition along the domatic pipeline laid and arrange cut-off wall.
Pipe trench cut-off wall is defined as follows: be arranged at pipe trench inside, for weakening or eliminating the underground structure of slope surface runoff to backfilling of pipe canal soil souring.Pipe trench cut-off wall the most conventional at present mainly contains two kinds of forms:
1) stone masonry cut-off wall.Be applicable to the pipeline hillside fields that toe is less than 45 °, with the rectangular slab of stone or stone block building (building stones lack area and particle diameter can be used to be greater than the cobble of 150mm), intensity is not less than MU30, and masonry mortar is M7.5 cement mortar.
2) ash (cement) native cut-off wall.Be applicable to the pipeline hillside fields that toe is less than 30 °, with sixteen dirt (lime is 2:8 with the volume ratio of soil) compaction in layers, lift height is not more than 300mm, and compacted coefficient is not less than 0.95.
Above-mentioned two kinds of cut-off walls are generally built with the pipe-line construction phase, do not build when the pipe-line construction phase, and run phase generator tube ditch soil erosion need build cut-off wall time, need first hand excavation's pipe trench, then build by the construction technology of specification.General conventional cut-off wall sectional dimension is trapezoidal, top width 0.4m, bottom width 1.0m, high 2.0m, long 4.0m.According to this size estimation, per pass cut-off wall needs various material weight about 8 ~ 10 tons, direct engineering cost about 4000 ~ 8000 yuan.When constructing, for preventing damage of wall pipeline anticorrosion coating, also need reserve the space being not less than 200mm between cut-off wall and tube wall and fill sand pocket, and the existence of sand pocket or poor construction quality often easily cause the reduced capability of cut-off wall blocking tube ditch soil erosion even to be lost.For from far-off regions or that building materials is relatively deficient Canal in Loess Area, no matter be stone masonry cut-off wall or ash (cement) native cut-off wall, its difficulty of construction (pipe canal digging, material are drawn materials, transported) and engineering cost all higher, and sand pocket and masonry quality wayward, prevention effect is barely satisfactory.
Summary of the invention
The object of the invention is to invent a kind of cut-off wall construction technology, to solve the high technical problem of existing cut-off wall difficulty of construction, cut-off wall construction technology construction provided by the invention is convenient, with low cost, effectively can prevent and treat Canal in Loess Area Pipeline ditch soil erosion.
Technical scheme of the present invention provides a kind of cut-off wall construction technology, comprising: drill through fill orifice respectively in pipeline both sides, fills rubble and forms macadam, and imbed liquid injection pipe in described macadam, described macadam fills filler in described fill orifice; Wherein, the degree of depth of described macadam is less than the hole depth of described fill orifice; According to the dosing standard configuration alkali lye that the dosing scale on dosing equipment and dosing nameplate are recorded, wherein, described dosing equipment is provided with valve; Woven hose is connected between described valve and described liquid injection pipe, by the cooperation of described valve, described woven hose, described liquid injection pipe, alkali lye is imported described fill orifice, described fill orifice is solidified, forms described cut-off wall.
Preferably, described in dosing equipment, configure alkali lye before, described construction technology also comprises: be fixed on by support apart from the ground in described fill orifice preset range; By described dosing equipment fixed placement in described support.
Preferably, the dosing standard that described dosing nameplate is recorded comprises: buried depth at the bottom of pipe, dosing scale value, amount of caustic soda; Describedly in dosing equipment, configure alkali lye, specifically comprise: obtain corresponding dosing scale value according to buried depth at the bottom of described pipe, then in described dosing equipment, add water to corresponding dosing scale according to the dosing scale value of described correspondence; The industrial caustic soda with the described corresponding corresponding weight of dosing scale is added in described dosing equipment.
Preferably, describedly woven hose is being connected between described valve and described liquid injection pipe, after by the cooperation of described valve, described woven hose, described liquid injection pipe alkali lye being imported described fill orifice, also comprise: the alkaline stream between adjacent scale marker is lost time controling between 10 minutes to 25 minutes.
Preferably, described construction technology also comprises: controlled between 2L/min to 5L/min by the rate of flooding of alkali lye.
Preferably, the diameter of described woven hose is 25mm; The diameter of described liquid injection pipe is 20mm.
Preferably, liquid dispensing device specifically diameter is 0.8m, the clear glass steel drum of high 1.3m.
One or more technical scheme of the present invention, has following beneficial effect:
The invention provides a kind of cut-off wall construction technology, first drill through fill orifice respectively in pipeline both sides, in fill orifice, fill rubble form macadam, and imbed liquid injection pipe in macadam, macadam fills filler; Then according to the dosing standard configuration alkali lye that the dosing scale on dosing equipment and dosing nameplate are recorded, finally woven hose is connected between valve and liquid injection pipe, by the cooperation of valve, woven hose, liquid injection pipe, alkali lye is imported fill orifice, fill orifice is solidified, form cut-off wall.Construction technology construction of the present invention is convenient, with low cost, effectively can prevent and treat Canal in Loess Area Pipeline ditch soil erosion.
Accompanying drawing explanation
The flow chart of a kind of cut-off wall construction technology that Fig. 1 embodiment of the present invention provides;
The fill orifice arrangement of boring holes plan view that Fig. 2 embodiment of the present invention provides;
The cut-off wall construction configuration schematic diagram that Fig. 3 embodiment of the present invention provides.
Description of reference numerals: pipeline 1, fill orifice 2, fill orifice 3, fill orifice 4, fill orifice 5, macadam 6, earth's surface 7, liquid injection pipe 8, plain native sealant 9, support 10, drill rod 11, dosing equipment 12, alkali lye 13, valve 14, woven hose 15.
Detailed description of the invention
In order to make the application the technical staff in the technical field more clearly understand the application, below in conjunction with accompanying drawing, by specific embodiment, technical scheme is described in detail.
In the present invention, mainly use alkali lye to process pipe trench loess, the principle forming the alkali lye cut-off wall of solidification is: alkali lye can make soil particle surface active, impels the mutual cementation solidifying in soil particle contact position, thus improves the mechanical strength of the soil body.The cut-off wall formed after alkali lye Stabilization of Loess, its soil particle contact surface cementation solidifying, concreteness obtains effective raising, in soil layer, original joint fissure is also filled consolidation simultaneously, the seepage channel of water is blocked, the ability grow of the erosion of water resistant stream and erosion of diving, water stability significantly strengthens, thus can play the function more obviously stoping pipe trench soil erosion with stone masonry cut-off wall or the identical even effect of ash (cement) native cut-off wall.
The alkali lye cut-off wall that the present invention makes is of a size of: be about 3.6m, high 1.7 ~ 3.2m, wide about 0.4m.
The present invention make alkali lye cut-off wall construction technology process as shown in Figure 1:
S1, drills through fill orifice respectively in pipeline 1 both sides, fills rubble and forms macadam 6, and imbed liquid injection pipe 8 in macadam 6, macadam 6 fills filler in fill orifice.
Wherein, the degree of depth of macadam 6 is less than the hole depth of fill orifice, and the hole depth of such as fill orifice is 3.2m, and the degree of depth of macadam 6 may be 0.6m.
Concrete example is as follows, and it should be noted that this example have employed four fill orifices and is described, certainly in actual applications, the number of fill orifice can be determined according to actual conditions.
Please refer to Fig. 2, located these four fill orifices of fill orifice 2, fill orifice 3, fill orifice 4 and fill orifice 5 altogether in pipeline 1 both sides, the present invention uses circular fill orifice to be example, in actual applications, can adopt the fill orifice of other shapes (as square).Specifically, fill orifice 2 and fill orifice 3 is located respectively apart from pipeline 1 outer wall both sides 0.3m.Outside fill orifice 2,0.8m locates fill orifice 4.Outside fill orifice 3,0.8m locates fill orifice 5.
After fill orifice of having good positioning, use luoyang spade soil taking hole forming, the diameter of luoyang spade is 6cm.
In hole, insert the even stone formation macadam 6 that particle diameter is about 20mm, the distance earth's surface 7, top of macadam 6 is not less than 20cm.
Liquid injection pipe 8 is inserted macadam 6 top.With element soil, closely knit formin soil sealant 9 is filled on top, hole.
S2, according to the dosing standard configuration alkali lye 13 that the dosing scale on dosing equipment 12 and dosing nameplate are recorded.
Specifically, dosing equipment 12 specifically diameter is 0.8m, the clear glass steel drum of high 1.3m, and is provided with valve 14.
Specifically, configure alkali lye 13 in dosing equipment 12 before, first support 10 is fixed on apart from the ground in certain or certain several fill orifice preset range, then by dosing equipment 12 fixed placement in support 10.Such as, when locating support 10, be placed on by support 10 outside fill orifice 2 that distance waits to pour into alkali lye 13 within the scope of 2.0m, in support 10 scope, ground need flatten and tread.Drill rod 11 is hammered into respectively soil layer in order to fixed support 10.Dosing equipment 12 is placed over the mount 10, guarantees firmly to be stuck in bottom dosing equipment 12 in the draw-in groove of support 10.Concrete structure chart as shown in Figure 3.
Because the dosing standard that dosing nameplate is recorded comprises: buried depth at the bottom of pipe, dosing scale value, amount of caustic soda.As shown in table 1.
The content of dosing nameplate comprises buried depth at the bottom of pipe, dosing scale value, and amount of caustic soda, particular content is as shown in table 1.
Table 1
In subordinate list 1, the industrial solid caustic soda weight of a standard bag is 25kg, and the industrial solid caustic soda weight of a standard spoon is 2.5kg.
In subordinate list, alkali lye 13 concentration is 100g/L.
Preferably, standard spoon can select volume to be the common mug of 1200ml.
Therefore, when configuring alkali lye 13, first can obtain corresponding dosing scale value according to buried depth at the bottom of pipe, then in dosing equipment 12, adding water to corresponding dosing scale according to the dosing scale value of correspondence; The industrial caustic soda with the corresponding corresponding weight of dosing scale is added in dosing equipment 12.Such as, in dosing equipment 12, add the dosing scale of clear water to setting.Use standard spoon adds the industrial solid caustic soda with the corresponding weight of dosing scale of setting to dosing equipment 12.Stir, solid caustic soda is fully dissolved and forms alkali lye 13.
After configuration alkali lye 13, perform S3: be connected to by woven hose 15 between valve 14 and liquid injection pipe 8, by the cooperation of valve 14, woven hose 15, liquid injection pipe 8, alkali lye 13 imported fill orifice, fill orifice is solidified, form cut-off wall.
Before perfusion, first the valve 14 bottom dosing equipment 12 is connected with woven hose 15.Then woven hose 15 is connected with liquid injection pipe 8.Then open valve 14, alkali lye 13 flows automatically through woven hose 15 and liquid injection pipe 8 and infiltrates fill orifice.
For obtaining better technique effect, further Countermeasures and parameter as follows:
Each fill orifice position error is not more than 10cm.
Each fill orifice line is vertical with pipeline 1, and angle fluctuation range controls within ± 15 °.
Each fill orifice gradient is not more than 5 °, and hole wall is without shrinkage cavity, collapse hole situation.
Each fill orifice hole depth is by determining as follows:
1) if the bottom buried depth of pipeline 1 is less than or equal to 1.5m, then hole depth gets 1.5m;
2) if the bottom buried depth of pipeline 1 is greater than 1.5m and is less than or equal to 3.0m, then hole depth is identical with the bottom buried depth of pipeline 1;
3) if the bottom buried depth of pipeline 1 is greater than 3.0m, then hole depth gets 3.0m.
Liquid injection pipe 8 selects diameter to be the steel pipe of 20mm, long 30cm.
Dosing equipment 12 selects diameter to be 0.8m, and the clear glass steel drum of high 1.3m, bottom is provided with valve 14.
Preferably, valve 14 selects diameter to be the stainless valve of 20mm.
Preferably, woven hose 15 selects diameter to be the hose of 25mm.
Preferably, in order to pour into alkali lye 13 better, can by-pass valve control 14, make alkali lye 13 rate of flooding control at 2L/min ~ 5L/min; Or observable dosing equipment 12 level change, by-pass valve control 14, makes alkali lye 13 liquid level be down to time controling between next scale marker at 10 ~ 25min from a upper scale marker.If average irrigation rate is more than 10L/min (alkaline stream is 5min between missing the season between corresponding adjacent scale marker), need hole location be found out and tamp, again filling with liquid.As rate of flooding is less than 1L/min (between corresponding adjacent scale marker alkaline stream miss the season between for 50min), need find out that whether gas can not be discharged smoothly in the blocked or fill orifice of liquid injection pipe 8, and dredge in time.
Preferably, several fill orifice can also be watered in order.The pouring squence of each fill orifice is respectively fill orifice 2, fill orifice 5, fill orifice 4, fill orifice 3.
In actual applications, use cut-off wall construction technology of the present invention, can carry out for concrete pipe trench Soil Erosion Disaster point.Such as, be positioned at K0833+600 place, puckery peaceful blue gas pipeline two wires, pipeline is closely east-west, buried depth 2.6m at the bottom of pipe, and occur place's soil erosion Collapse Pit above pipe trench, Collapse Pit is about 3.0m, wide about 1.6m, deeply about 1.2m.Landform unit residing for project is tree rings third terrace, and stratum is primarily of Quaternary system loess-like silt, and thickness is about 30m.Vertical cranny development, short texture.Pipe trench the erosion of rainfall charge for remittance and under the effect of oozing issue raw soil erosion, formed Collapse Pit.Control measures: plain earthen backfill Collapse Pit, builds cut-off wall along pipe trench every 5m, totally six roads.Construction Difficulties: project is positioned at remote loess area, building stones field distance, and road is not smooth, the building materials such as cement, lime are bought and are transported not easily, secondary cost of wheeling is high, and cause stone masonry cut-off wall and ash (cement) native cut-off wall difficulty of construction greatly, construction cost is high.For solving the problem, construction technology of the present invention can be adopted to build alkali lye cut-off wall.Six road alkali lye cut-off walls totally two ten four fill orifices, each fill orifice infusion time about an and a half hours, total lever factor four days.Further, for verifying this alkali lye cut-off wall Control Engineering effect, outside alkali lye cut-off wall treatment range, 10m (pipeline downstream direction) set up pipe trench soil erosion point of observation.Through patrolling and examining of nearly half a year, find the Be very effective of this alkali lye cut-off wall control pipe trench soil erosion, do not grow new soil erosion phenomenon, then there is several obvious soil erosion coombe in pipe trench soil erosion point of observation, the maximum coombe degree of depth is about 0.6m, wide 0.3m.
To sum up, the cut-off wall construction technology utilizing the present invention to propose, effectively can prevent and treat the soil erosion of loess area oil and gas pipes pipe trench, working procedure is simple, constructor's operation intensity is low, compared with traditional pipe trench cut-off wall, build alkali lye cut-off wall in remote or that building materials is relatively deficient Canal in Loess Area and there is construction advantage convenient, with low cost.
Cut-off wall construction technology of the present invention is compared with ash (cement) native cut-off wall with traditional stone masonry cut-off wall, has following significant advantage and effect:
(1) alkali lye cut-off wall, its soil particle Contact face cementation solidifying, concreteness obtains effective raising, in soil layer, original joint fissure is also filled consolidation simultaneously, the seepage channel of water is blocked, the ability grow of the erosion of water resistant stream and erosion of diving, water stability significantly strengthens, thus can play the effect more obviously can preventing and treating pipe trench soil erosion with stone masonry cut-off wall or the similar even effect of ash (cement) native cut-off wall.
(2) more traditional stone masonry cut-off wall and ash (cement) native cut-off wall, alkali lye cut-off wall construction cost significantly reduces.Stone masonry is adopted to build cut-off wall, its cost of every cubic metre about 1400 yuan; Ash (cement) soil is adopted to build cut-off wall, its cost of every cubic metre about 800 yuan.And adopting alkali lye cut-off wall, its cost of every cubic metre only needs 120 yuan.In addition, industrial caustic soda is bought and is transported very convenient, if therefore in the area that some building materials are relatively deficient, the cost advantage of alkali lye cut-off wall will be more obvious.
(3) construction of alkali lye cut-off wall greatly can reduce the labour intensity of constructor.Every cubic metre of stone masonry cut-off wall needs the constructional materialss about 2.4 tons such as all kinds of stone material, cement, sand, and hand excavation's earth volume is about 1.5m
3; Every cubic metre of ash (cement) soil repaiies waterwall needs the constructional materials such as lime, cement about 0.5 ton, and hand excavation's earth volume is about 1.5m
3.And alkali lye cut-off wall only needs about 0.1 ton, solid caustic soda, clear water and stone, and without the need to hand excavation's earthwork.
(4) working procedure of alkali lye cut-off wall is comparatively simple, relates generally to luoyang spade pore-forming, alkali lye configuration and alkali lye and pours into three contents.Through simple training, common laborer can grasp constructing operation method fast.Especially, when prepared by alkali lye, the graduation mark of caustic soda quality and clear water volume when dosing equipment subscript is marked with buried depth at the bottom of different pipe, calculates the preparation that can realize alkali lye fast without the need to professional.Meanwhile, the standard spoon provided convenient construction personnel can quick and precisely measure the solid caustic soda of fixed mass.
(5) effect of alkali lye cut-off wall control pipe trench soil erosion is more obvious.When stone masonry cut-off wall and the native cut-off wall of ash (cement) are constructed, in order to prevent cut-off wall structure, pipeline anticorrosion coating is damaged, to need between cut-off wall and tube wall the reserved space being not less than 200mm in order to fill sand pocket, and the existence of sand pocket or poor construction quality often easily cause cut-off wall to weaken the ability even losing the soil erosion of blocking tube ditch.Then and between duct wall there is not space in alkali lye cut-off wall body of wall, blocking tube ditch soil erosion effect more obvious substantially.
Although described the preferred embodiment of the application, one of ordinary skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the application and not depart from the spirit and scope of the application.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.
Claims (7)
1. a cut-off wall construction technology, is characterized in that, comprising:
Drill through fill orifice respectively in pipeline both sides, in described fill orifice, fill rubble form macadam, and imbed liquid injection pipe in described macadam, described macadam fills filler; Wherein, the degree of depth of described macadam is less than the hole depth of described fill orifice;
According to the dosing standard configuration alkali lye that the dosing scale on dosing equipment and dosing nameplate are recorded, wherein, described dosing equipment is provided with valve;
Woven hose is connected between described valve and described liquid injection pipe, by the cooperation of described valve, described woven hose, described liquid injection pipe, alkali lye is imported described fill orifice, described fill orifice is solidified, forms described cut-off wall.
2. construction technology as claimed in claim 1, is characterized in that, described in dosing equipment, configure alkali lye before, described construction technology also comprises:
Support is fixed on apart from the ground in described fill orifice preset range;
By described dosing equipment fixed placement in described support.
3. construction technology as claimed in claim 1 or 2, it is characterized in that, the dosing standard that described dosing nameplate is recorded comprises: buried depth at the bottom of pipe, dosing scale value, amount of caustic soda;
Describedly in dosing equipment, configure alkali lye, specifically comprise:
Obtain corresponding dosing scale value according to buried depth at the bottom of described pipe, then in described dosing equipment, add water to corresponding dosing scale according to the dosing scale value of described correspondence;
The industrial caustic soda with the described corresponding corresponding weight of dosing scale is added in described dosing equipment.
4. construction technology as claimed in claim 1, is characterized in that, is describedly being connected to by woven hose between described valve and described liquid injection pipe, after by the cooperation of described valve, described woven hose, described liquid injection pipe alkali lye being imported described fill orifice, also comprises:
Alkaline stream between adjacent scale marker is lost time controling between 10 minutes to 25 minutes.
5. construction technology as claimed in claim 1, it is characterized in that, described construction technology also comprises: controlled between 2L/min to 5L/min by the rate of flooding of alkali lye.
6. construction technology as claimed in claim 1, it is characterized in that, the diameter of described woven hose is 25mm; The diameter of described liquid injection pipe is 20mm.
7. construction technology as claimed in claim 1, it is characterized in that, liquid dispensing device specifically diameter is 0.8m, the clear glass steel drum of high 1.3m.
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| CN201510007513.XA CN104695443B (en) | 2015-01-07 | 2015-01-07 | A kind of water stop construction technology |
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| CN201510007513.XA CN104695443B (en) | 2015-01-07 | 2015-01-07 | A kind of water stop construction technology |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055569A (en) * | 1990-04-07 | 1991-10-23 | 具喆会 | The method for curing of the soil that civil engineering is used |
| JPH08151652A (en) * | 1994-11-29 | 1996-06-11 | Kumagai Gumi Co Ltd | Pile foundation and its construction method |
| CN1401853A (en) * | 2002-08-06 | 2003-03-12 | 张炳宏 | Road building method, solid and liquid solidifying agents thereby and method for producing them |
| CN1760466A (en) * | 2005-11-02 | 2006-04-19 | 天津城市建设学院 | Groundwork firming agent for soft soil of marine accumulation, and preparation method |
| CN101387113A (en) * | 2008-09-25 | 2009-03-18 | 史汉祥 | Coastal saline soil improvement method |
| CN103388321A (en) * | 2013-07-18 | 2013-11-13 | 河海大学 | Construction method for river dike foundation anti-seepage wall |
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2015
- 2015-01-07 CN CN201510007513.XA patent/CN104695443B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055569A (en) * | 1990-04-07 | 1991-10-23 | 具喆会 | The method for curing of the soil that civil engineering is used |
| JPH08151652A (en) * | 1994-11-29 | 1996-06-11 | Kumagai Gumi Co Ltd | Pile foundation and its construction method |
| CN1401853A (en) * | 2002-08-06 | 2003-03-12 | 张炳宏 | Road building method, solid and liquid solidifying agents thereby and method for producing them |
| CN1760466A (en) * | 2005-11-02 | 2006-04-19 | 天津城市建设学院 | Groundwork firming agent for soft soil of marine accumulation, and preparation method |
| CN101387113A (en) * | 2008-09-25 | 2009-03-18 | 史汉祥 | Coastal saline soil improvement method |
| CN103388321A (en) * | 2013-07-18 | 2013-11-13 | 河海大学 | Construction method for river dike foundation anti-seepage wall |
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