CN109610497A

CN109610497A - One kind is regulated and stored pond foundation anti-seepage processing method

Info

Publication number: CN109610497A
Application number: CN201811603884.4A
Authority: CN
Inventors: 卢小波
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2019-04-12

Abstract

It regulates and stores pond foundation anti-seepage processing method the invention discloses one kind; the following steps are included: S1 bottom of pond foundation anti-seepage is handled: adding water to turn over rammer bottom of pond subjacent bed certain thickness soil layer layering reinforcement; compacting is filled, sets gradually cement cushion lime, geomembrane, river bottom protection protective layer from bottom to top above it；The processing of the pond S2 week foundation anti-seepage: excavating pond Zhou Jinhang, then carries out layering reinforcement and water is added to turn over rammer, and set gradually cement cushion lime, geomembrane, cement mortar bedding cushion, protective layer from bottom to top above it；S3 dam foundation basement process: former base soil layer layering reinforcement adds water to turn over rammer, and fills compacting；Anti-skid collar tie beam is arranged in the S4 slope surface that meets water, and extends transversely through in entire slope surface.The present invention handles bottom of pond, the dam foundation, pond week ground and the slope surface that meets water respectively, original soil layering reinforcement, which adds water to turn over rammer, redistributes basic earth stress and strain, consolidates soft base gradually, increases intensity, the pond that promotes to regulate and store forms closed seepage prevention system, and anti-seepage effect is ideal.

Description

One kind is regulated and stored pond foundation anti-seepage processing method

Technical field

The present embodiments relate to hydraulic engineering technical fields, and in particular to one kind is regulated and stored pond foundation anti-seepage processing side Method.

Background technique

In recent years, with the attention and accurate poverty alleviation drinking-water peace that country builds city (township) town and rural drinking water safety projects The implementation of full support plan, it is domestic, especially it is located in northwest loess plateau cities and towns, the countryside potable water security tune that rural periphery is built Reservoir is more and more, these ponds of regulating and storing mostly are built in severe cold, collapsible loess area, and the collapsibility sedimentation for facing ground becomes The problems such as shape and Anti-seeping technology, such as deal with improperly, be easy to cause water leakage, the subsidence of foundations and slope surface slump.Simultaneously because cold During the winter water storage of cold-zone by freeze, ice melts is influenced so that side slope is easy sliding unstability, cause the destruction of protective layer.Currently, Temporarily necessary measure is not taken to the stability failure and slide processing of slope surface in engineering, it is main to the processing of soil supporting layer foundation anti-seepage to use The processing of the reinforcing anti-seepages such as replacement cushion method, heavy-tamping method, presoaking, compaction pile method, rotary churning pile method and slip casting method.

Replacement cushion method: being often suitable for handling shallow-layer saturated yielding, weak light construction, terrace, road engineering foundation, Former foundation soil is replaced using sand (sandstone), rubble and cushion lime, it is wet that this method cannot all eliminate basis or less Amount is fallen into, be easy to cause to change and fill out mutually mixing for bed course and the soft s ubsoil soil body, design strength is still not achieved in basis, limpness It still remains, and is limited by regional condition, without slaked lime production producer in region, demand is bought greatly and at a distance, causes to make Valence increases.

Heavy-tamping method: the method equipment is simple, significant effect, and speed of application is fast, more by foundation soil body classification and engineering properties etc. Kind factor influences, and need to carry out the test of place strong rammer in advance and be differentiated, determine strong rammer parameter, technique and ground natural moisture content If appropriate for strong rammer, being lower than plastic limit moisture content 1%~3% with natural moisture content is Con trolling index, when being greater than plastic limit moisture content, Heavy tamping is easily in soft-plastic state, and design requirement is not achieved.Meanwhile strong rammer can generate the influence of earthquake and vibrating noise, in city Town residential area should draw attention.

Presoaking: the method extent of flooding and water consumption are big, impregnate and need to shift to an earlier date half a year to a Nian Jinhang, and necessary before soaking Soaking time, water consumption and collapsibility are determined by scene submerging test of testing pits.To drought, the poor area of water resource is not easy Using.It being limited by regional condition, floor area arid, serious water shortage, water resource is very deficient, meanwhile, periphery is large stretch of village Resident's centrostigma may leak during immersion, occupy condition to ambient enviroment and people and cause adverse effect.

Compaction pile method: compacted pile material generallys use sandstone (rubble) stake, lime pile, lime soil pile etc..Sandstone (rubble) stake Since clay or loess sticky content are high, ground bad hydraulic permeability is difficult to play crowd in-out effects；Lime pile and lime soil pile can absorb water, Heating and expansion process soft soil, when ground moisture content is lower than optimum moisture content, compacted effect is best, when saturation degree and contains It when water rate is respectively higher than 24% and 65%, is generally not easy to select, while pond place processing area of regulating and storing is big, compaction pile hole number Greatly, the construction period is long, and cost is high.

Rotary churning pile method: cement grout is punched the soil body with high pressure by the method, mixes slurries with the soil body, setting and hardening reinforces ground Base reinforces groundwork intensity height, and effect is good, but since pond place processing area of regulating and storing is big, and cost is high, the reasons such as long in time limit, It is applicable in by certain limitation.

Slip casting method: the method is that cement or other chemical grouts are injected the soil body with pressure pump, and soil mass consolidation improves carrying Power reduces leakage, and intensity is high, and antiseepage is good, but grouting serous fluid is difficult to effectively fill in the loess or clay ground to poor permeability Enter, consolidation effect is usually undesirable.

These above-mentioned processing modes are mostly by natural conditions, regional condition, completion time of project, material consumption and source, vibration The reasons such as the basic condition limitation of dynamic influence and ground itself of the noise to periphery village environment, or non-adaptation to local conditions or place There is reason the problems such as limitation or processing are not thorough, are not comprehensive and uneconomical to be unable to satisfy requirement.

Summary of the invention

Regulate and store pond foundation anti-seepage processing method for this purpose, the embodiment of the present invention provides one kind, with solve in the prior art by In being located in northwest drought loess plateau, severe cold and collapsible loess area, disappeared by region, natural conditions, periphery village environment, material The countryside potable water security that consumption and the limitations such as source are built is regulated and stored the foundation anti-seepage processing method in pond.These ponds of regulating and storing are in water storage Period faces the Collapsing Deformation of ground, leakage, such as deals with improperly, be easy to cause water leakage, the subsidence of foundations and slope surface slump etc. Problem.To achieve the goals above, embodiments of the present invention provide the following technical solutions:

One kind is regulated and stored pond foundation anti-seepage processing method, the described method comprises the following steps:

The processing of S1 bottom of pond foundation anti-seepage: reservoir bottom of pond is exchanged according to " Code for building construction in collapsible loess zone " (GB50025-2004) require, below impervious barrier elevation under the soil layer of sleeping 2/3 depth of soil layer (>=2.5m) range be layered Reinforcement adds water to turn over rammer to form basement process layer, and rolling and placement, which is tamped to design, fills standard, turn over after rammer and above it from lower and On set gradually cement cushion lime and fill compacting, geomembrane, river bottom protection protective layer；

The pond S2 week foundation anti-seepage processing: according to design volume size and place pond body profiled plan area requirement, to pond week It is excavated to design profile range with depth soil layer with bottom of pond, layering reinforcement then is carried out to spoil layer and adds water to turn over rammer to form ground Process layer, rolling and placement, which is tamped to design, fills standard, and sets gradually cement cushion lime, geotechnique from bottom to top above it Film, cement mortar bedding cushion, protective layer.The pond that promotes to regulate and store jointly bottom of pond S1 and pond week S2 forms the seepage prevention system of integrally closed, It prevents from deforming and leak.

S3 dam foundation basement process: it is earlier to clear up surface layer miscellaneous fill to the dam foundation for the soil layer that crouches under weakness, then according to specification GB50025-2004 requirement carries out layering reinforcement to the soil layer of lower sleeping 2/3 depth of soil layer (>=2.5m) range and water is added to turn over rammer formation ground Base process layer, and be layered and carry out cal rolling and fill compacting filling standard to design；

S4 is longer for upstream face length of grade, to prevent precast concrete block from freezing in sudden drawdown, wave scour and winter Protective layer collapsing, unstability under the effects of melting subiculum, in upstream batter slope surface setting at least one of anti-skid collar tie beam, the anti-skid collar tie beam It extends transversely through in entire slope surface, the one side that the anti-skid collar tie beam is located at slope surface is flushed with protective layer, and section is pentagon.

Further, it is layered mechanical rolling and placement compacting away from 2.5~4m of bottom of pond below the step S1 antiseepage elevation, point Thickness 30~50cm of degree, amount of water are reach setting moisture content -2%~+2%.

Further, it is layered the compacting of reinforcement rolling and placement, is added away from 2.5~4m of bottom of pond below the step S1 antiseepage elevation Muscle object is that polypropylene needle pierces long fibre geotextile, 200~450g/m of unit mass², 3~5mm of thickness.Divide 3~4 layers, former base 1 Layer, adds one layer every 1m from bottom to top.

Further, the cement cushion lime is the compound soil padding of+5% flyash of 10% cement, uniform mixing, thickness For 30~60cm, cement and flyash additive ratio 10% and 5% are the amount of incorporation and the soil body mass ratio that is cured.

Further, layered rolling filling body compactness >=96%~98%, dry density >=16~17kN/m³。

Further, the cement mortar bedding cushion of the step S2 is M10 cement mortar bedding cushion, with a thickness of 4~6cm.

Further, the geomembrane of the step S2 is 150g/PE0.5mm/150g composite geo-membrane.

Further, the protective layer of the step S2 be hexagon C20 precast concrete block, side length 25cm, thickness 8~ 10cm。

Further, anti-skid collar tie beam together is set at 10~15m from bottom to top along length of grade in upstream face.

Further, the anti-skid collar tie beam is the anti-skid collar tie beam of concrete, pours integrated molding, integral into pentagonal prism shape, Section is the pentagonal configuration being made of three right angles and two obtuse angles.

Further, the anti-skid collar tie beam is the cast-in-place anti-skid collar tie beam of C20 concrete, and the width that pours of the anti-skid collar tie beam is 0.8~1.0m.

Embodiment according to the present invention, one kind of the present invention are regulated and stored pond foundation anti-seepage processing method and anti-skid collar tie beam structure It has the advantages that

(1) present invention mainly adds water to turn over rammer using former base bottom of pond, pond week and dam foundation reinforcement, and collapsibility and weakness are made after processing Foundation resistance to shear of soil and strain are redistributed, while consolidate soft base gradually, increase intensity and have enough steady It is qualitative.

(2) present invention is main uses: bottom of pond former base layering reinforcement adds water to turn over rammer to form basement process layer+cement cushion lime The bottom of pond that+geomembrane anti-seepage layer+river bottom protection protective layer pattern exchanges reservoir carries out strengthening of foundation Anti-seeping technology；Pond Zhou Yuanji layering Reinforcement add water turn over rammer form basement process layer+cement cushion lime+geomembrane anti-seepage layer+cement mortar+protective layer pattern pair It regulates and stores the pond Zhou Jinhang reinforcing anti-seepage processing in pond, the pond that promotes to regulate and store bottom of pond and pond Zhou Gongtong forms the impervious body of integrally closed System has ideal anti-seepage effect.

(3) present invention is directed to the particularity of regional natural conditions, to prevent protective layer (precast concrete block) in water level It collapses under the effects of rapid drawdown, wave scour and winter frost ablation subiculum, unstability, it is every along length of grade from bottom to top in upstream face Every 10~15m left and right settings together anti-skid collar tie beam, the stability of protective layer is strengthened, the landing phenomenon of protective layer is prevented.

(4) present invention can well adapt to loess plateau and shortage of water resources area, material consumption and source, the completion time of project, Periphery villages and small towns influence etc. is had construction is simple, duration by the pond anti-seepage processing method of regulating and storing that regional condition is limited and is built Short, with low investment, outstanding advantages of adaptability is good, achieve the effect that after processing ideal.

Detailed description of the invention

It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis The attached drawing of offer, which is extended, obtains other implementation attached drawings.

Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.

Fig. 1 is that one kind of the invention is regulated and stored basement process schematic diagram in the foundation anti-seepage processing method of pond；

Fig. 2 is that one kind of the invention anti-skid collar tie beam structure and partial enlargement used in the processing of pond foundation anti-seepage of regulating and storing shows It is intended to；

Fig. 3 is that one kind of the invention is regulated and stored pond foundation anti-seepage processing method leakage preventing structure enlarged drawing.

In figure: A, bottom of pond basement process range, A ', dam foundation basement process range, B, pond week basement process range, 1, ground Process layer, 2, cement cushion lime, 3, geomembrane, 4, river bottom protection protective layer, 5, cement mortar bedding cushion, 6, protective layer, 7, anti-skid circle Beam.

Specific embodiment

Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.

The term on cited such as "upper", "lower", " left side ", the right side in this specification ", " centre ", is merely convenient to describe Be illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence It inside holds, when being also considered as the enforceable scope of the present invention.

Embodiment 1

500,000 m of Gansu Province's silver³Pond of regulating and storing is built in the village He Ping rural area village topography higher position, is small-sized 5 grades of water such as V Work building, place ground are Q₄ ^1plProluvial silt loam, low collapsibility in tool, soft foundation, pond are filled as homogeneous loam, Regulate and store pond upstream face slope ratio 1:2.5, Chi Shen 10m, total length of grade 27m, it is main using method of the invention are as follows: bottom of pond, pond week And dam foundation original soil layering reinforcement adds water to turn over rammer to form basement process layer；Bottom of pond original soil layering reinforcement adds water to turn over rammer to form basement process Layer+cement cushion lime+geomembrane anti-seepage layer+river bottom protection protective layer；Pond week original soil layering reinforcement adds water to turn over rammer to form basement process Layer+cement cushion lime+geomembrane anti-seepage layer+cement mortar+protective layer；Bottom of pond, the pond of reservoir are exchanged using the above method Zhou Jinhang reinforcing anti-seepage processing, and slope surface from bottom along line of slope length 10m with 20m at it is each be arranged together with anti-skid collar tie beam, Promote regulate and store pond formation one entirety, closed seepage prevention system, there is ideal anti-seepage effect, such as Fig. 1-3, the side Method includes:

S1 bottom of pond foundation anti-seepage handles A: to bottom of pond and the dam foundation according to GB50025-2004 code requirement, in impermeable layer on pond bottom Sleeping soil layer 2/3 is deep under below elevation, and the original basis soil at the place 2.5m, which is layered reinforcement water is added to turn over rammer, forms basement process layer 1, laminating machine Tool rolls compacting, and lift height 50cm sets three layers of reinforcement polypropylene geotextile fabric, reinforced earth fabric basis quality from former base 200g/m², thickness 3mm, amount of water is be optimal moisture content -2%~+2%, and upper surface sets cement cushion lime after turning over rammer 2, the cement cushion lime 2 is the compound soil padding of+5% flyash of 10% cement, with a thickness of 30cm, carries out layered rolling and fills Compacting, layered rolling filling body compactness >=96%, dry density >=16kN/m³, the geomembrane 3 is 150g/PE0.5mm/ 150g composite geo-membrane, the river bottom protection protective layer 4 is loam river bottom protection protective layer, with a thickness of 80cm.

The pond S2 week basement process B: according to pond body outer profile range, design wheel is excavated to depth soil layer to Chi Zhouyu bottom of pond Then wide range adds water to turn over rammer the flat stone roller layering reinforcement of spoil layer progress original soil and forms basement process layer 1, layered rolling fills Compacting, and set gradually cement cushion lime 2,150g/PE0.5mm/150g composite geo-membrane 3, thickness from bottom to top above it Degree is M10 cement mortar bedding cushion 5, the side length 25cm of 4cm, the hexagon C20 precast concrete block protective layer 6 of thickness 10cm. Cement cushion lime 2, composite geo-membrane 3, cement mortar bedding cushion 5, protective layer 6 are integrally formed closing seepage prevention system together with S1.

S3 dam foundation basement process A ': to the dam foundation for the soil layer that crouches under weakness, surface layer miscellaneous fill is cleared up in advance, then processing and pond The original soil layering reinforcement of bottom same depth, i.e. 2.5m adds water to turn over rammer to form basement process layer, if three layers of reinforcement polypropylene geotextile are knitted Object, and be layered progress cal rolling and fill compacting, fill standard compaction degree >=96%.

S4 is since upstream face length of grade reaches 27m, to prevent precast concrete block from sliding, in bottom along length of grade direction every 10m Anti-skid collar tie beam 7, the anti-skid collar tie beam 7 are extended transversely through in entire slope surface place's setting together, and the anti-skid collar tie beam 7 is located at slope surface It is flushed on one side with protective layer 6, section is pentagon.The setting of this anti-skid collar tie beam 7 strengthens the stability of protective layer 6, prevents The slumping phenomenon of protective layer 6.

For the present invention in anti-skid 7 structure of collar tie beam used in the Anti-seeping technology of pond of regulating and storing, the anti-skid collar tie beam 7 is cast-in-place C20 The anti-skid collar tie beam of concrete, pours integrated molding, and pouring width is 0.8m, and integral into pentagonal prism shape, section is by three right angles With the pentagonal configuration of two obtuse angles composition.The operating condition in the pond of regulating and storing after Anti-seeping technology is checked, is transported Row in order, anti-seepage effect it is obvious, protective layer do not occur unstability and slide phenomenon, reached ideal effect.

Embodiment 2

3,500,000 m of Gansu Province Huining County useful storage volume³It regulates and stores pond, is small-sized 5 grades of hydraulic structures such as V, Chi Ji Basis is loess-like silt, has compressibility and collapsibility, meteorological data are shown, 6.7 DEG C of this area's many years temperature on average, extremely most - 29.7 DEG C of low temperature is severe cold area.The pond pond depth 15m that regulates and stores, upstream face slope ratio 1:2.5, length of grade 40.4m, using this hair Bright method is mainly that former base layering reinforcement adds water to turn over rammer to form basement process layer+cement cushion lime+geomembrane composite anti-penetrating Layer+cement mortar+protective layer pattern exchanges the bottom of pond of reservoir and dam foundation ground, pond week ground, upstream batter slope surface carry out antiseepage Processing, the pond that promotes to regulate and store form closed impervious body, have ideal anti-seepage effect, such as Fig. 1-3, the method packet It includes:

S1 bottom of pond and dam foundation basement process A: the soft loess shape silt root of reservoir bottom of pond and dam foundation tool collapsibility is exchanged It is required according to GB50025-2004, adds water to turn over rammer away from the original basis soil layering reinforcement at bottom of pond 4m below impervious barrier elevation and form ground Process layer 1, layering cal rolling compacting, compactness >=97%, lift height 50cm, from four layers of reinforcement polypropylene soil of former base sandwiched Work fabric, unit mass 300g/m², thickness 3.5mm, amount of water is be optimal moisture content -2%~+2%, is turned on after rammer Surface sets cement cushion lime 2, and the cement cushion lime 2 is the compound soil padding of+5% flyash of 10% cement, with a thickness of 40cm carries out layered rolling and fills compacting, layered rolling filling body compactness >=97%, dry density >=17kN/m³, institute is set thereon Stating geomembrane 3 is 150g/PE0.5mm/150g composite geo-membrane, and the river bottom protection protective layer 4 is silt river bottom protection protective layer, with a thickness of 100cm。

The pond S2 week basement process B: according to 3,500,000 m³Volume and the pond body outer profile size determined requirement are designed, to pond week It is excavated to design profile range with depth soil layer with bottom of pond, the flat layering reinforcement that grinds of original soil then is carried out to spoil layer, water is added to turn over Rammer forms basement process layer 1, and rolling and placement tamps to design compactness >=97% for standard of filling, and above it from bottom to top Set gradually cement cushion lime 2,150g/PE0.5mm/150g composite geo-membrane 3, the M10 cement mortar bedding cushion with a thickness of 4cm 5, the hexagon C20 precast concrete block protective layer 6 of side length 25cm, thickness 8cm.Bottom of pond S1 promotes to regulate and store jointly with pond week S2 Pond forms the seepage prevention system of integrally closed, prevents bottom of pond, pond peripheral distortion and leakage.

S3 dam foundation basement process A ': layering reinforcement is carried out to the soil layer 4m thickness silt that crouches under dam foundation weakness, water is added to turn over rammer formation ground Base process layer 1, and it is layered reinforcement, if four layers of reinforcement polypropylene geotextile fabric, layering carries out mechanical flat stone roller rolling and placement compacting, pressure Solidity >=97%.

S4 is since upstream face face length of grade degree is 40.4m, to prevent 6 precast concrete block of protective layer in sudden drawdown, wave Scour effect is lower to collapse, and anti-skid collar tie beam 7 together is arranged from bottom along length of grade at 15m for upstream face, and the anti-skid collar tie beam 7 is laterally Through entire slope surface, the one side that the anti-skid collar tie beam 7 is located at slope surface is flushed with protective layer 6, and section is pentagon.

For the present invention in anti-skid 7 structure of collar tie beam used in the Anti-seeping technology of pond of regulating and storing, the anti-skid collar tie beam 7 is cast-in-place C20 The anti-skid collar tie beam of concrete, pours integrated molding, and pouring width is 1.0m, and integral into pentagonal prism shape, section is by three right angles With the pentagonal configuration of two obtuse angles composition.To the operating condition and slope protection in the pond of regulating and storing after Anti-seeping technology 6 situation of layer are checked that protective layer 6 does not occur landing phenomenon.

Although above having used general explanation and specific embodiment, the present invention is described in detail, at this On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.

Claims

The pond foundation anti-seepage processing method 1. one kind is regulated and stored, which is characterized in that described method includes following steps:

S1 bottom of pond foundation anti-seepage handles A: the soil layer of sleeping 2/3 depth bounds of soil layer carries out layering reinforcement under below impervious barrier elevation Add water to turn over rammer to be formed basement process layer (1), rolling and placement, which is tamped to design, fills standard, and successively sets from bottom to top above it Set cement cushion lime (2), geomembrane (3), river bottom protection protective layer (4)；

The pond S2 week foundation anti-seepage handles B: according to design volume size and place pond body profiled plan area requirement, to pond Zhou Yuchi Bottom is excavated to design profile range with depth soil layer, then carries out layering reinforcement to spoil layer and adds water to turn over rammer to form basement process Layer (1), rolling and placement, which is tamped to design, fills standard, and sets gradually cement cushion lime (2), soil from bottom to top above it Work film (3), cement mortar bedding cushion (5), protective layer (6)；

S3 dam foundation basement process A ': it is earlier to clear up surface layer miscellaneous fill to the dam foundation for the soil layer that crouches under weakness, then to lower sleeping soil layer 2/ The soil layer of 3 depth bounds carries out layering reinforcement and adds water to turn over rammer to form basement process layer (1), and is layered and carries out cal rolling and fill rammer Standard is filled to design in fact；

At least anti-skid collar tie beam (7), the anti-skid collar tie beam (7) are lateral together for upstream face slope slope surface setting of the S4 inside pond of regulating and storing Through entire slope surface, the anti-skid collar tie beam (7) is located at the one side at slope surface and flushes with protective layer (6), and section is pentagon.
2. pond foundation anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that the step S1 antiseepage elevation Below away from 2.5~4m of bottom of pond, the mechanical rolling and placement of layering is tamped, 30~50cm of lift height, and amount of water is aqueous to reach setting - the 2% of rate~+2%.
3. pond anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that below the step S1 antiseepage elevation Away from 2.5~4m of bottom of pond, it is layered the compacting of reinforcement rolling and placement, reinforcement object is that polypropylene needle pierces long fibre geotextile, unit mass 200~450g/m², 3~5mm of thickness points 3~4 layers, 1 layer of former base, adds one layer every 1m from bottom to top.
4. pond anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that the cement cushion lime (2) is The compound soil padding of+5% flyash of 10% cement, with a thickness of 30~60cm, cement and flyash additive ratio 10% and 5% are incorporation Amount and be cured soil body mass ratio.
5. pond anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that be layered mechanical rolling and placement body compacting Degree >=96%~98%, dry density >=16~17kN/m³。
6. pond anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that the river bottom protection protective layer of the step S1 It (4) is the former base loam or silt river bottom protection protective layer that excavate, with a thickness of 80~100cm.
7. pond anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that the cement mortar pad of the step S2 Layer (5) is M10 cement mortar bedding cushion, with a thickness of 4~6cm.
8. pond anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that the geomembrane (3) of the step S2 For 150g/PE0.5mm/150g composite geo-membrane.
9. pond anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that the protective layer (6) of the step S2 For the prefabricated C20 concrete block of hexagon, side length 25cm, 8~10cm of thickness.
10. pond anti-seepage processing method of regulating and storing according to claim 1, which is characterized in that in upstream face from bottom to top Anti-skid collar tie beam (7) together is set at 10~15m along length of grade.
11. pond anti-seepage processing method of regulating and storing according to claim 10, which is characterized in that the anti-skid collar tie beam (7) is mixed The solidifying anti-skid collar tie beam of soil, pours integrated molding, integral into pentagonal prism shape, section is five be made of three right angles and two obtuse angles Side shape structure.
12. pond anti-seepage processing method of regulating and storing according to claim 11, which is characterized in that the anti-skid collar tie beam (7) is existing The anti-skid collar tie beam of C20 concrete is poured, the width that pours of the anti-skid collar tie beam (7) is 0.8~1.0m.