CN105064380B - Harnessed the river anti-skid structure rich in diving high slope - Google Patents

Harnessed the river anti-skid structure rich in diving high slope Download PDF

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CN105064380B
CN105064380B CN201510396366.XA CN201510396366A CN105064380B CN 105064380 B CN105064380 B CN 105064380B CN 201510396366 A CN201510396366 A CN 201510396366A CN 105064380 B CN105064380 B CN 105064380B
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water
level
slope
diving
rich
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CN105064380A (en
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祁建福
王龙飞
李建刚
陈文先
周海泉
乔叶伟
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GANSU WUHUAN HIGHWAY ENGINEERING Co Ltd
GANSU ROAD AND BRIDGE CONSTRUCTION GROUP CO Ltd
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GANSU WUHUAN HIGHWAY ENGINEERING Co Ltd
GANSU ROAD AND BRIDGE CONSTRUCTION GROUP CO Ltd
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Abstract

Harnessed the river anti-skid structure rich in diving high slope the invention discloses one kind, intercepted water device and sump including the first order intercept water device, the third level of device, the second level of intercepting water, device is intercepted water and the third level device that intercepts water is located at rich in diving high slope from top to bottom in intercept water device, the second level of the first order, and is connected with sump;The first order device that intercepts water is intercepting ditch, and device is intercepted water in the second level and the third level intercepts water device comprising shuting and the sewer being located at below shuting.The present invention is taken through setting three-level to arrange in the range of rich in diving high slope, oozes the facility subregion point system that integrally intercepts water, carry out three-level surface retention, underground sewer dams, surface water in the range of quick discharge catchment area, draw the diving and crevice water of diluvial layer, eliminate potential hazard of the water to natural slope, slope sliding effectively is prevented by harnessing the river, the classification that will intercept water imports sump, passes through peripheral drainage system(Such as gutter, culvert etc.)Discharge outside Project Areas.

Description

Harnessed the river anti-skid structure rich in diving high slope
Technical field
It is especially a kind of to be harnessed the river anti-skid structure rich in diving high slope the present invention relates to traffic route technical field of construction; It is particularly a kind of that in a wide range of interior high, long, gradient slope downstream, line project is set(Such as highway, railway), architectural engineering(Such as house Building, living area), but the height of weathered layer or diluvial layer, length, gradient slope have that peripheral catchment area is very big, local has crack Water, be rich in pore ground water in slope, easily cause high gradient slope wriggle in itself downslide, come down and collapse, and then influence even to destroy by rush of water Downstream engineering entity is harnessed the river anti-skid structure rich in diving high slope.
Background technology
In the plentiful and dark and damp region wire engineering of rainfall(Especially highway engineering and railway engineering)During route selection, often It is very big and rich in the high slope of diving that catchment area can be met, take and pass round that measures engineering cost is too high or cheuch section narrow field When can not pass round at all, building constructure or Ren Ju living areas at toe, in order to save the area, protect the original life of high gradient slope In the case of state and guarantee stability of slope etc., it is necessary to vacate enough, safe Engineering Zone for downstream, take engineering measure to protect Card should be rich in diving stability of high slope.
Stability for High Slope often transport by the engineering geological condition with side slope, hydrogeologic condition, topography and geomorphology and neotectonics It is dynamic etc. to have direct relation.With the progress of engineering construction, while also original place looks are produced with certain destruction, disturbed Rock And Soil Stabilization and balance originally, it will induce or cause slope instability, producing a series of wriggle along sliding surface glides, comes down and collapse Disaster, or even cause secondary disaster to downstream engineering region.It is therefore desirable to grasped comprehensive rich in diving high slope feature On the basis of, influence stability of slope and the combined factors effectively administered, integrally investigate and analyze as a system, pass through Reconnoitre, design, construct and run each stage Whole Process Control, so as to scientific and reasonable, it is safe and reliable, economical, effectively prevention and Administer rich in diving high slope, thoroughly solve side slope and determine stability.
The content of the invention
The present invention in view of the shortcomings of the prior art, propose it is a kind of harnessed the river anti-skid structure rich in diving high slope, process is ingenious, It is easy to implement.
In order to realize foregoing invention purpose, the present invention provides following technical scheme:One kind is harnessed the river anti-rich in diving high slope Slipped Clove Hitch structure, including the first order intercept water device, the third level of device, the second level of intercepting water are intercepted water device and sump, and the first order intercepts water dress Put, device is intercepted water in the second level and the third level is intercepted water, and device is located at from top to bottom rich in diving high slope, the three-level device that intercepts water is each It is respectively arranged from direction is reduced along contour, and is connected with sump;The first order device that intercepts water is intercepting ditch, and the second level is intercepted water Device and the third level intercept water device comprising shuting and the sewer being located at below shuting.
Further, device is intercepted water and the third level device that intercepts water drops along contour respectively in intercept water device, the second level of the first order Low direction arrangement.
Further, the first order device that intercepts water intercepts and discharges the domatic charge for remittance for the device outer rim that intercepted water positioned at the first order.
Further, the intercept water shuting of device of the second level intercepts and discharges that the first order intercepts water device and the second level is intercepted water dress The cross flow water and a small amount of crevice water that Atmospheric precipitation is formed in the range between putting;The intercept water sewer of device of the second level intercepts and discharges position Intercepted water the diving rich in diving high slope above device in the second level.
Further, the intercept water shuting of device of the third level intercepts and discharges that device is intercepted water in the second level and the third level is intercepted water dress The cross flow water and a small amount of crevice water that Atmospheric precipitation is formed in the range between putting, the intercept water sewer of device of the third level intercept and discharge position In the diving rich in diving high slope that device is intercepted water in the second level and the third level is intercepted water between device.
Further, the third level intercepts water device setting close proximity to rich in the Project Areas under diving high slope, discharges engineering The part charge for remittance in area.
Further, the section of sewer is U-shaped to be seeped water in it by first above the drainage channel and drainage channel of bottom Material is filled;Sewer is made up along the side wall rich in diving high slope of the second seepage material.
Further, the first seepage material is rubble or cobble;Second seepage material is packed gravelly sand.
Further, the drainage channel is that concrete prefabricated plate is covered in the formation of sewer bottom, or in sewer bottom The pipe fitting of embedded holes at lateral wall.
Further, infiltration geotextiles are additionally provided with sewer, coat the first seepage material.
Compared with prior art, the present invention has advantages below:It is taken through setting in the range of rich in diving high slope Three-level row, the facility subregion point system that integrally intercepts water is oozed, progress three-level surface retention, underground sewer dam, and quickly discharge catchment area In the range of surface water, draw the diving and crevice water of diluvial layer, eliminate potential hazard of the water to natural slope, by harness the river come Slope sliding effectively is prevented, the classification that will intercept water imports sump, passes through peripheral drainage system(Such as gutter, culvert etc.)Discharge work Outside journey area.
From the point of view of application of the present invention in engineering practice and later regulation effect, the inventive concept meets landslide and implemented The actively theory of prevention, reduce passive the drawbacks of administering.Design and construction concept, the operation sequence of invention main points, process Meet code requirement and construction process requirement, method is simple and easy, in the method for region point system, avoids big rule in a wide range of The engineering measure of mould, the security and the feature of environmental protection of governance process are considerably improved in the case where ensureing quality, is achieved aobvious The punishment effect and comprehensive benefit of work, therefore, the innovative approach are a kind of safe and environment-friendly, reliable, advanced Treatment Methods.
Brief description of the drawings
Fig. 1 is the structural representation of anti-skid structure of the invention of being harnessed the river rich in diving high slope;
Fig. 2 is the schematic cross-section of first order intercepting ditch;
Fig. 3 is that the second level is intercepted water the schematic cross-section of device;
Fig. 4 is that the third level is intercepted water the schematic cross-section of device.
Embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings, and the description of this part is only exemplary and explanatory, should not There is any restriction effect to protection scope of the present invention.
Abrupt slope natural slope stability demonstration and improvement need full and accurate prospecting data, mainly including topography and geomorphology, geology Condition, hydrogeologic condition and neotectonic movement etc., while should also take into full account downstream engineering area the construction such as fills or excavates Disturbing influence, construction phase preventing treatment and the maintenance of operation phase etc., objective basis is provided for evaluation stability of slope.
It is many to influence the factor of stability of slope, the reason for causing slope sliding is also various, therefore slope controlling can not By single treatment method, emphasis to prevent, the comprehensive regulation.Need to consider influence factor in governance process, reconnoitring Stage, design phase, construction stage and operation stage carry out process control, play comprehensive method of investment benefit, obtain synthesis and effectively control Reason.
It is scientific and reasonable, safe and reliable, economical, environmentally friendly, effectively prevent and administer that high slope is unstable asks rich in diving Topic, exempt the various hidden danger that side slope is likely to occur with downstream engineering region in itself, considering side slope region weather, gas As, the hydrology, on the basis of landform, landforms and stratum geologic lithology, needed with reference to actual landform through the main following comprehensive regulation Thinking.
1st, putting prevention first and combining prevention with control
According to actual conditions such as side slope topography and geomorphology, hydrometeorology, formation lithology, natural slope, catchment areas, it is configured The pumping equipments such as table intercepting ditch, underground sewer, maximum hazard factor --- the water of slope stability will be influenceed, thorough " elimination ", is adopted Take design ejectment measure, put prevention first, will " anti-" and " controlling " center of gravity reach, later stage once generation during so as to avoid " not administering " The drawbacks of passive " improvement " difficulty on landslide significantly increases.
2nd, remote connect far is sent, and system is complete
The pumping equipments such as intercepting ditch, sewer are reasonable, complete, ensure structure erosion control, antiseepage, are advantageously implemented engineering measure Effect, water and soil conservation, revegetation;Pumping equipment, which far connects, far to be sent, and handles entery and delivery port well, pays attention to cutting, pumping equipment and drop The close linking of well, peripheral drainage system, guarantee upstream is domatic, the safety and stablization in downstream engineering region, ensures overall draining System is completely effective, and current are unobstructed.
3rd, bricklaying vegetation, bring out the best in each other
Ejectment protection is dammed into the bricklaying of domatic implementation phase and the Plant biological protection of operation stage in later stage is combined, is made Current regulation effect and long-range solid slope effect reach optimal, accomplish to treat both principal and secondary aspect of disease, bring out the best in each other, eradicate disease.
4th, graded flow-block-up, combine in length and breadth;Draining in table, the comprehensive regulation
It is domatic according to high slope landform, domatic size and the three-level discharge of substantial transverse point of current source, if Fig. 1 is rich in diving High slope is harnessed the river shown in anti-skid structure schematic diagram, on domatic rich in diving high slope 1, from top to bottom sets three-level to intercept water dress Put:The first order intercept water device 3, the third level of device 2, the second level of intercepting water is intercepted water device 4, and sump 5, and the three-level device that intercepts water is each It is respectively arranged from direction is reduced along contour, the three-level device that intercepts water connects with sump 5.
The first order device 2 that intercepts water is intercepting ditch, intercepts the Atmospheric precipitation of the outer rim of intercepting ditch 2 and a small amount of crevice water;The first order Intercept water device 2 and cross flow water, a small amount of crevice water and diluvial layer that Atmospheric precipitation that the second level is intercepted water between device 3 in region is formed The diving being rich in, discharged by the second level device 3 that intercepts water;Region is big between device 3 is intercepted water in the second level and the third level is intercepted water device 4 Cross flow water, a small amount of crevice water and the downstream engineering region partial drainage that gas precipitation is formed, discharged by the third level device 4 that intercepts water;Three Level is intercepted water and discharged after sump 5 collects by peripheral drainage system is unified, and the culvert through the lower section of Project Areas 6 as shown in Figure 1 is arranged Go out.
The device that intercepted water below to three-level is described in detail:
1st, the highest point first order intercepts water the setting and construction of device 2
(1)The highest point first order intercept water device 2 setting purpose:The first order is intercepted to intercept water beyond device 2 and hills scope Interior charge for remittance, its catchment area is generally very big larger, main overland flow water, crevice water and the ground formed including Atmospheric precipitation Seepage water of the layer rich in diving, domatic and downstream erosion is aggravated when meeting heavy rain, domatic seepage flow effect can seriously be dropped Low domatic skid resistance.
(2)The highest point first order intercepts water the setting of device 2:Arrangement principle, which is to try to intercept the first order, to intercept water beyond device 2 Whole charges for remittance, and reduce direction along contour becoming slope position, suit measures to local conditions to arrange with reference to actual conditions, keep linear suitable Freely, longitudinal slope cannot be less than 3%.As shown in Fig. 2 section is that chamfer is trapezoidal, side of the edge rich in diving high slope is to incline for cross section Tiltedly set, bottom width 50cm, top width 75cm, deep 50cm, thick 35cm mortar flag stones are built by laying bricks or stones.
(3)Before construction, according to topographic map, highest point first order intercepting ditch excavation is demarcated with reference to actual landform with suiting measures to local conditions Line, it is desirable to which a setting-out connects up, and is segmented gradation excavation construction, every section is advisable with 50m.To ensure that intercepting ditch is stable and firm, intercept water Ditch mortar flag stone base need to be embedded in more than 15cm below horizon d.Specific construction is identical with the ditch construction method that intercepts water.
2nd, intercept water the setting and construction of device 3 for the middle second level
(1)Intercept water the purpose that device 3 is set for the second level:The first order is intercepted using shuting 31 to intercept water device 2 and the second level Intercept water the cross flow water and a small amount of crevice water that Atmospheric precipitation is formed in the range between device 3;Pass through the integral type set under intercepting ditch The diving that sewer discharge diluvial layer is rich in.
(2)Intercept water the setting of device 3 for the second level:Arrangement principle is to consider the second level to intercept water the gathering ground of device more than 3 Product, rich in diving situation, along contour reduce direction, suit measures to local conditions to arrange with reference to actual conditions, keep it is linear smooth, upper strata cut Ditch is consistent with lower floor sewer longitudinal slope, and longitudinal slope cannot be less than 3%.Its section by shuting 31 and being located at as shown in figure 3, intercepted water The sewer 32 of the lower section of groove 31 is formed, and dry-laid rubble layer 33 is provided between shuting 31 and sewer 32, the section of shuting 31 is U Type, it is to be obliquely installed along the side rich in diving high slope.
The section of sewer 32 is U-shaped, and it is interior by the first seepage material 35 above the drainage channel and drainage channel of bottom Filling;Sewer 32 is made up along the side wall rich in diving high slope 1 of the second seepage material 34.Drainage channel is concrete prefabricated board Block 36 covers what is formed in sewer bottom;Infiltration geotextiles 37 are additionally provided with sewer 32, coat the first seepage material 35.Wherein, One seepage material 35 is rubble or cobble, and the second seepage material 34 is packed gravelly sand.
In construction, the main body of sewer 32 is mortar flag stone, and its base must be embedded in rich in below the diving horizon d of high slope 1 1m, ensure that the second level device 3 that intercepts water of shuting 31 and the one of sewer 32 is stable and firm, and ensure rich in diving high slope 1 The whole smooth inflow sewer of water.Strict guarantee sewer construction quality and cross dimensions during construction.Concrete prefabricated cover plate block 36 is every Block length 30cm, stay among every piece of termination and set wide 2cm, long 30cm drain tanks;Pay attention to upper domatic waterproofing geomembrane paving location for soil (Diluvial layer)Rock(Glutenite)Interface flows into sewer opening position in infiltration;Packed gravel fissure of displacement overlap joint code wide 30cm, oozes Groove inner bottom surface, infiltration face and top surface laying infiltration geotextiles 37, filling boulder and cobble and upper domatic gravel is filled simultaneously in sewer Carry out, to prevent packed gravel is pushed over;Shuting 31 is built on dry-laid rubble 33, must ensure the stabilization of dry-laid rubble 33 Firmly;Sewer 32, shuting 31 are built to finish and in time backfill both sides, are made real domatic.
3rd, the lowest part third level is intercepted water the setting and construction of device 4
(1)The lowest part third level intercept water device 4 setting purpose:The second level is intercepted using shuting 41 to intercept water the He of device 3 The third level is intercepted water cross flow water, a small amount of crevice water and the downstream engineering region part row that Atmospheric precipitation is formed in the range between device 4 Water(Such as express highway pavement and slope drainage, now and play gutter), oozed by the integral type of 41 times settings of shuting Ditch 42 discharges diluvial layer diving.Intercept water the possibility of the i.e. completely cut off downstream Engineering Zone seepage flow of facility in this road.
(2)The lowest part third level is intercepted water the setting of device 4:Arrangement principle is appropriate close to downstream engineering area, and as far as possible and The main line of Project Areas 6 is parallel, suits measures to local conditions to arrange with reference to actual conditions, keep line shuting 41 it is linear smooth, upper strata intercepting ditch and Lower floor's sewer is consistent, and longitudinal slope cannot be less than 1%, and sewer 42 and shuting 41 are discharged into sump 5, and section is as shown in Figure 4.
The intercept water mortar flag stone base of device 4 of the third level must be embedded in 0.45m below horizon d, ensure that the third level is intercepted water The safety and firmness of device 4, infiltration can all flow into sewer, and construction method is intercepted water with Fig. 3 second level as device 3.Sewer in Fig. 4 Longitudinal drainage pipe in 42 uses PE plastic tubes 46 with holes, caliber Φ 30cm, aperture 1.0cm, longitudinal pitch 7.5cm, on Semicircle sets 5 rows, hole position Heterogeneous Permutation altogether.
4th, the setting and construction of sump 5
The purpose for setting sump 5 is buffering water inlet, prevents spray from spilling, and precipitates silt, and is discharged into drainage system in time, Therefore it is required that drop well size, height, precipitation tank depth is satisfied by requiring.
Above-mentioned three-level intercepts water device construction precautions:
1st, construction needs pay close attention to construction arrangement and sequence of construction.Rainy season is avoided during construction, is easy to construct, and can be with Prevent slump;The first construction domatic drainage system in upstream, construction downwards, can gradually decrease diluvial layer soil moisture in layer step by step, increase Work Ability of Resisting Disturbance is affixed by, avoids the phenomenon that comes down, if first constructing downstream engineering(Such as express highway roadbed retaining wall), May the influence such as, foundation ditch depth big because of diluvial layer water content, construction disturbance cause small range to cave in or wide-spread decline.Construction During have and intercept intercepting ditch segmentation during a small amount of precipitation, water is arranged in domatic, avoids destroying by rush of water positive construction part.Administer and complete High gradient slope after a dry season, the domatic diving being rich in can obtain it is effective cut stifled, brought for downstream engineering construction Safety and facility.
2nd, it can adjust and arrange according to landform when shuting and sewer are constructed, but to ensure the longitudinal slope gradient, ensure that current are unimpeded, The smooth camber line linking in turning, abstains from knuckle processing, and carries out terminus position and cohesive position Construction control, and guarantee is not permeable not Leakage, makes drainage system complete.
3rd, sewer sets embedded depth of foundation as requested, and sewer will be embedded in below the 1.0m of ground in itself, ensures north immediately Side area does not produce frost heave influence yet.
4th, due to being had a great influence by ambient temperature, subsiding crack is pressed to be set together shuting per 10m, is constructed, is cut for convenience Tank is consistent with sewer set location, and vertically through pitch loose hemp fiber filleting must finely with caution, with antiseep.
5th, excavator channel excavation, manual amendment are arranged;Reasonable arrangement slabstone, drainage rubble cobble enter construction part simultaneously Ensure clean and tidy clean.The loaded filter of sewer is works out packed gravel, from the gravel material of even particle size, sewer internal drainage Layer filling building stones are boulder and cobble, and the particle diameter in the middle part of sewer is 3~5cm, and smaller close to geotextiles particle diameter is 1~2cm, filling Material all should be rinsed well.
Harnessed the river anti-skid structure rich in diving high slope using the present invention, in the work progress of several months, with three Level intercepts water being gradually completing of device, and the diving of Engineering Zone soil layer is quickly greatly reduced, and water content significantly reduces;With intercepting water Ditch, sewer are completed comprehensively, and soil layer diving in Engineering Zone prevents substantially;The inspection in 5 rainy seasons is had already passed through up to now, especially The rare heavy rain in summer and autumn Tianshui in 2013, causing Bao-Tian motorway many places landslide, caving in, the feelings of highway closing It is still reliable and stable at this under condition.
Embodiment
In Gansu, Co., Ltd of construction of road and bridge group Baoji for undertaking the construction of of acceptance of the bid is to Tianshui Expressway BT17 contract sections In work progress, Combining with terrain, the hydrology and geology characteristic, are fully adopted comprehensively on the left of the separated subgrade of XK77+420~560 section The comprehensive regulation has been carried out with the anti-skidding method of harnessing the river rich in diving high slope, significant punishment effect has been achieved and is imitated with comprehensive Benefit.
1 project profile, geological hydrology situation and Engineering Geology Evaluation
1.1 project profile
XK77+420~560 section separated subgrade is embankment section, 1.39~6.42m of the depth of fill, and left side toe bankets height 0.2~2.1m is spent, original ground horizontal slope is steeper, 17~27 ° of the gradient, category steep slope subgrade construction.The construction area topographic map is as schemed Show.93.5m on the left of roadbed(It is flat away from)It is Red Sandstone hills, 45~65 ° of natural grade, mountain top and hillside in addition by dense shrub institute Covering;93.5m(It is flat away from)Within be the diluvial layer that degrades based on sandy loam, 17~27 ° of natural grade, length of grade 65.5~ 102.1m, the high about 36.2m in slope(Counted from roadbed center line original ground), mainly Rehabilitated land, tall shrub covers sparse, soil property It is soft, rich in diving and crevice water, diluvial layer 0~5m of thickness, average thickness about 3.5m.The region catchment area is big, exploration and Often personnel's footgear is made an on-the-spot survey in submergence to During Initial Stage Construction individual lot infiltration mud.
1.2 formation lithology
Disclosed according to geology survey and probing, the master stratum of the steep slope subgrade section exposure is slide rock for the 4th(Q4 dl)And Cretaceous System Maiji mountain group(Km)Sandy gravel stratum, stake position log sheet is described as follows in XK77+490:
Q4 dlSandy loam:Light red;Slightly tide-humidity;Hard plastic-plastic;Soil property is loosely uneven, pores'growth, containing sand and angle Gravel, it is local to press from both sides loess thin layer.[σ o]=160kPa, thickness 4.0m.
Km completely decomposed glutenites:Bronzing;It is in fluffy that protolith structure, construction destroy completely, and rock matter is softer.[σo]= 300kPa, thickness 3.60m.
Severely-weathered glutenite:Bronzing, shale is weak cementing, and institutional framework is largely destroyed, and rock matter is softer, joint fissure Development, gravel are mainly that the particles such as quartz, sandstone, schist are formed, and gravel footpath is 4~7cm, and core is in granular media shape.[σo]= 400kPa, thickness 9.40m.
Weak weathering glutenite:Bronzing, shale is weak cementing, middle coarse grained texture, and rock matter is softer, and joint fissure is less, gravel Predominantly the particle such as quartz, sandstone, schist is formed, and gravel footpath is 4~7cm, and core is complete, in short cylinder.[σ o]=600kPa, layer Thick 1.96m, is not exposed.
The 1.3 meteorological and hydrology
The sub- moistening continental climate area in section category warm temperate zone, 550~679.1mm of mean annual precipitation, year rainfall distribution not , focused mostly in June to September, account for the 73.5% of annual precipitation, and occur more in the form of heavy rain.Maximum depth of frozen ground 90cm.
The region abrupt slope groundwater occurrence mainly has Quaternary pore water and Bedrock Crevice Water.Quaternary pore water mainly divides Diluvial layer is distributed in, water is little, and depth to water is shallower, and predominantly Atmospheric precipitation is fed;Bedrock Crevice Water is distributed mainly on hills Bedrock fracture, its water change greatly, depth to water is unstable, is influenceed greatly by Atmospheric precipitation.Underground water connects with earth's surface seepage water Logical preferable, Source Of Supply is similar, is influenceed greatly by Atmospheric precipitation.
1.4 Engineering Geology Evaluation
Slope terrain is steep on the left of this section of steep slope subgrade, and coating is thin, local red glutenite exposure.Atmospheric precipitation is on ground Table easily forms overland flow or coombe runoff, and pore ground water, rainy season slopes coating and glutenite completely decomposed are easily formed in underground Layer inundated intenerating anti-slide performance is reduced, and a series of glide may be formed along severely-weathered interface and wriggled, come down and collapse, stable condition Difference, it is necessary to which processing could stablize.
22 three-levels intercept water harness the river anti-skidding process of the device subregion point system rich in diving high slope
The 2.1 highest point first order intercept water device setting with constructing
The long 151m of intercepting ditch, longitudinal slope -14.3%;The long 43m in gutter being connected with sump, longitudinal slope -18.5%.The intercepting ditch Portion red sandstone exposure, diluvial layer thinner thickness(0~1.2m), intercepting ditch is confirmed on glutenite, and insertion More than gravel rock stratum 15cm, ensure stable and firm.
Intercept water device setting and construction for the 2.2 middle second level
Intercept water flute length 87.1m, the long 90.6m of sewer, longitudinal slope -3.4%.Intercept water setting position diluvial layer thickness 2.0 for the second level ~3.4m, excavation construction, sewer mortar flag stone base ensure infiltration to shuting embedded in 1m below fresh scar at twice during construction Sewer can all be flowed into.
The third level intercepts water device setting with constructing between 2.3 lowest parts
The long 101m of shuting, sewer, longitudinal slope -4.5%.What simultaneous of the shuting, discharge road surface horizontal slope draining and left side had been filled out Wide 3% slope drainages of 3m, XK77+340~420 section roadbed left side ditch water discharge, two level platform intercept water ditch water discharge etc..It is discharged into and catchments Well is simultaneously discharged into peripheral drainage system from culvert.
The shuting, sewer position diluvial layer 2.8~3.6m of thickness, shuting are divided to two sections of excavation constructions, and sewer grouts piece Stone base must be embedded in 0.45m below fresh scar, ensure that infiltration can all flow into sewer.
2.4 constructions arrange and sequence of construction
Intercepting ditch, shuting and sewer on construction in 11~December slope short of rain;Gear under Second Year construction in 3~April slope Cob wall;Remove roadbed table soil May, excavate the fertile soil rich in root system, original place base is dried and rolled, it is filling roadbed.
Rainy season is avoided in construction, is easy to construct, and slump can be prevented;First construct the domatic drainage system in upstream, step by step to Lower construction, diluvial layer soil moisture in layer can be gradually decreased, increase construction Ability of Resisting Disturbance, reduces the phenomenon that comes down, if First construct downstream retaining wall, may the influence such as, foundation ditch depth big because of diluvial layer water content, construction disturbance cause small range to cave in Or wide-spread decline.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (8)

1. one kind is harnessed the river anti-skid structure rich in diving high slope, it is characterised in that:Intercepted water including intercept water device, the second level of the first order Device, the third level are intercepted water device and sump, and device is intercepted water and the third level intercepts water device from upper in intercept water device, the second level of the first order It is located at and is rich in diving high slope under, and is connected with sump;The first order device that intercepts water is intercepting ditch, and intercept water dress for the second level Put and intercept water device comprising shuting and the sewer being located at below shuting with the third level;
The section of sewer is U-shaped, is filled in it by the first seepage material above the drainage channel and drainage channel of bottom;Sewer It is made up along the side wall rich in diving high slope of the second seepage material;
The drainage channel is that concrete prefabricated plate is covered in the formation of sewer bottom, or to bury holes at lateral wall in sewer bottom Pipe fitting.
2. harnessed the river anti-skid structure rich in diving high slope as claimed in claim 1, it is characterised in that:The first order intercepts water device, Two level intercepts water device and the third level is intercepted water, and device reduces direction arrangement along contour respectively.
3. harnessed the river anti-skid structure rich in diving high slope as claimed in claim 1 or 2, it is characterised in that:The first order intercepts water device Intercept and discharge and be rich in domatic charge for remittance positioned at what the first order intercepted water device outer rim.
4. harnessed the river anti-skid structure rich in diving high slope as claimed in claim 1 or 2, it is characterised in that:Intercept water device for the second level Shuting intercept and discharge that the first order intercepts water device and the second level is intercepted water the cross flow that Atmospheric precipitation in the range between device is formed Water and a small amount of crevice water;The second level intercept water device sewer intercept and discharge positioned at the second level intercept water above device rich in diving The diving of high slope.
5. harnessed the river anti-skid structure rich in diving high slope as claimed in claim 1 or 2, it is characterised in that:The third level is intercepted water device Shuting intercept and discharge that device is intercepted water in the second level and the third level is intercepted water the cross flow that Atmospheric precipitation in the range between device is formed Water and a small amount of crevice water, the intercept water sewer of device of the third level are intercepted and discharged and intercept water device positioned at the second level and the third level is intercepted water dress The diving rich in diving high slope between putting.
6. harnessed the river anti-skid structure rich in diving high slope as claimed in claim 5, it is characterised in that:The third level intercept water device setting Close proximity to rich in the Project Areas under diving high slope, the part charge for remittance of Project Areas is discharged.
7. harnessed the river anti-skid structure rich in diving high slope as claimed in claim 1, it is characterised in that:First seepage material is rubble Or cobble;Second seepage material is packed gravelly sand.
8. harnessed the river anti-skid structure rich in diving high slope as claimed in claim 1, it is characterised in that:Infiltration soil is additionally provided with sewer Work cloth, coat the first seepage material.
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