CN105064380A - Rich underwater high slope water control antiskid composition - Google Patents
Rich underwater high slope water control antiskid composition Download PDFInfo
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- CN105064380A CN105064380A CN201510396366.XA CN201510396366A CN105064380A CN 105064380 A CN105064380 A CN 105064380A CN 201510396366 A CN201510396366 A CN 201510396366A CN 105064380 A CN105064380 A CN 105064380A
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Abstract
The invention discloses a rich underwater high slope water control antiskid composition comprising a first stage water stop device, a second stage water stop device, a third stage water stop device and a water collection well; the first, second and third water stop devices are arranged from top to bottom on the rich underwater high slope, and respectively connected with the water collection well; the first water stop device is a catch water drain; the second and third water stop devices respectively comprises a cutoff trench and a sewer arranged below the cutoff trench. The rich underwater high slope scope is provided with three-stage drain-seep integrated water stop facilities for partition control; three-stage surface cutoff and underground sewer cutoff can fast drain the surface water in a catchment area, can lead out underwater and crack water in the slope layer, thus eliminating potential damages in the natural slope by the water; the water control can effectively prevent slope sliding, the water can be staged to enter the water collection well, and be drained outside an engineering zone through a peripheral draining system (like a waterways and a culvert).
Description
Technical field
The present invention relates to traffic route technical field of construction, especially one is rich in diving high slope and harnesses the river anti-skid structure; It is particularly a kind of that on a large scale, interior height, length, gradient slope downstream arrange line project (as highway, railway), construction work (as building construction, living area), but the height of weathered layer or diluvial layer, length, gradient slope exist, and peripheral catchment area is very large, local has crevice water, pore ground water is rich in slope, easily cause high gradient slope itself to wriggle to glide, come down and collapse, and then even the destroy by rush of water diving high slope that is rich in of downstream engineering entity of impact is harnessed the river anti-skid structure.
Background technology
In the plentiful and dark and damp region wire engineering of rainfall (especially highway engineering and railway engineering) route selection process; often can meet catchment area very large and be rich in the high slope of diving; take to pass round measures engineering cost too high or cheuch section narrow field cannot pass round at all time; in toe place building constructure or human settlements living area; in order to save the area, protect the original ecology of high gradient slope and ensure stability of slope etc. when; must vacate enough, safe Engineering Zone for downstream, this is rich in diving stability of high slope to take engineering measure to ensure.
Stability for High Slope often has direct relation with the engineering geological conditions of side slope, hydrogeological conditions, topography and geomorphology and neotectonic movement etc.Along with the carrying out of engineering construction, simultaneously also certain destruction is produced to original place looks, the stability and balance that disturbance Rock And Soil is original, will bring out or cause slope instability, produce the downslide of a series of wriggling along slide plane, come down and collapse disaster, cause secondary disaster even to downstream engineering region.Therefore, just need grasping on the basis of being rich in diving high slope feature comprehensively, the combined factors affecting stability of slope and effectively administer, investigate as an entire system and analyze, by reconnoitring, designing, construct and run each stage Whole Process Control, thus scientific and reasonable, safe and reliable, economical, effectively to prevent and diving high slope is rich in improvement, thoroughly separate side slope and to determine stability.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose one and be rich in diving high slope and harness the river anti-skid structure, process is ingenious, and it is convenient to implement.
In order to realize foregoing invention object, the invention provides following technical scheme: one is rich in diving high slope harnesses the river anti-skid structure, comprise the first order intercept water device, the third level of device, the second level of intercepting water to intercept water device and collecting well, first order device, second level device and the third level device that intercepts water that intercepts water that intercepts water is located at from top to bottom and is rich in diving high slope, three grades of devices that intercept water reduce direction along isohypse separately and arrange respectively, and are all communicated with collecting well; The first order device that intercepts water is catchwater, and intercept water device and the third level of the second level is intercepted water the sewer that device all comprises cutoff trench and be located at below cutoff trench.
Further, first order device, second level device and the third level device that intercepts water that intercepts water that intercepts water reduces direction along isohypse respectively and arranges.
Further, the first order device that intercepts water is tackled and is discharged and is positioned at the first order and intercepts water the domatic charge for remittance of device outer rim.
Further, the intercept water cutoff trench of device of the second level is tackled and is discharged intercept water device and the second level of the first order and to intercept water the cross flow water and a small amount of crevice water that between device, in scope, Atmospheric precipitation is formed; The intercept water sewer of device of the second level is tackled and discharges the diving being rich in diving high slope being positioned at the second level and intercepting water above device.
Further, the intercept water cutoff trench of device of the third level is tackled and is discharged intercept water device and the third level of the second level and to intercept water the cross flow water and a small amount of crevice water that between device, in scope, Atmospheric precipitation is formed, and the intercept water sewer of device of the third level tackle and discharged to intercept water in the second level device and the third level being rich between device of intercepting water and to dive under water the diving of high slope.
Further, the third level device that intercepts water arranges Project Areas as far as possible under being rich in diving high slope, discharges the part charge for remittance of Project Areas.
Further, the cross section of sewer is U-shaped, is filled in it by the first seepage material above the drainage channel of bottom and drainage channel; Sewer is made up along the sidewall being 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, this drainage channel is that concrete prefabricated plate covers and formed bottom sewer, or for burying the pipe fitting of holes at lateral wall bottom sewer underground.
Further, in sewer, be also provided with infiltration geotextiles, coated first seepage material.
Compared with prior art, the present invention has the following advantages: take by be rich in diving high slope within the scope of three grades of rows are set, ooze the facility that integrally intercepts water divide distinguish make, carry out three grades of surface retentions, underground sewer dams, surface water within the scope of quick discharge catchment area, draw diving and the crevice water of diluvial layer, eliminate water to the potential hazard of natural slope, effectively slope sliding is prevented by harnessing the river, the classification that will intercept water imports collecting well, discharged outside Project Areas by peripheral drainage system (as gutter, culvert etc.).
By the application of the present invention in engineering practice and later regulation effect, this invention theory meets the theory that initiatively prevention is implemented on landslide, reduces the drawback of passive improvement.Design and construction concept, the operation sequence of invention main points, process all meet code requirement and construction process requirement, method is simple, the method of system is divided with region, avoid large-scale engineering measure on a large scale, safety and the feature of environmental protection of governance process is considerably improved when ensuring the quality of products, achieve significant punishment effect and comprehensive benefit, therefore, this innovative approach is a kind of safety, environmental protection, reliable, advanced Treatment Methods.
Accompanying drawing explanation
Fig. 1 is that the present invention is rich in diving high slope and is harnessed the river the structural representation of anti-skid structure;
Fig. 2 is the schematic cross-section of first order catchwater;
Fig. 3 is intercept water the schematic cross-section of device in the second level;
Fig. 4 is that the third level is intercepted water the schematic cross-section of device.
Detailed description of the invention
Describe the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
Abrupt slope natural slope stability demonstration and improvement need full and accurate prospecting data, mainly comprise topography and geomorphology, geological conditions, hydrogeological conditions and neotectonic movement etc., also should take into full account filling or the construction disturbance impact such as excavation of downstream engineering district simultaneously, construction phase preventing treatment and operation phase safeguard, provide objective basis for evaluating stability of slope.
The factor affecting stability of slope is a lot, and cause the reason of slope sliding to be also various, therefore slope controlling can not rely on single processing method, emphasis to prevent, the comprehensive regulation.Need influence factor to consider in governance process, carry out process control in phase of exploration, design stage, construction stage and operation stage, play comprehensive method of investment benefit, obtain comprehensive effectively improvement.
Scientific and reasonable, safe and reliable, economy, environmental protection, effectively to prevent and diving high slope instability problem is rich in improvement, exempt the various hidden danger that side slope itself may occur with downstream engineering region, considering side slope region weather, meteorology, the hydrology, on the basis of landform, landforms and stratum geologic lithology, need to run through main following comprehensive regulation thinking in conjunction with actual landform.
1, 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, the drainage such as earth's surface catchwater, underground sewer is set, maximum hazard factor---the water of slope stability will be affected, thoroughly " elimination ", take design ejectment measure, put prevention first, the center of gravity of " preventing " and " controlling " moved forward, thus when avoiding " not administering " later stage once there is the drawback that significantly strengthens of passive " improvement " difficulty on landslide.
2, far connect and far send, system is complete
The drainage such as catchwater, sewer is reasonable, complete, ensures structure erosion control, antiseepage, is conducive to realizing engineering measure effect, water and soil conservation, vegetation recovery; Drainage far connects and far send, and handles entery and delivery port well, and attention cuts, drainage is connected with drop well, the tight of peripheral drainage system, and ensure that upstream is domatic, the safety and stablization in downstream engineering region, ensure that overall drainage system is effectively complete, current are unobstructed.
3, bricklaying vegetation, brings out the best in each other
Ejectment of bricklaying implementation phase of domatic being dammed protection and the Plant biological protection of operation stage in later stage combine, and make current regulation effect and long-range solid slope effect reach best, accomplish to treat both principal and secondary aspect of disease, bring out the best in each other, eradicate disease.
4, graded flow-block-up, combines in length and breadth; Draining in table, the comprehensive regulation
Domatic according to the substantial transverse point three grades discharges of originating of high slope landform, domatic size and current, harness the river shown in anti-skid structure schematic diagram as Fig. 1 is rich in diving high slope, be rich in diving high slope 1 domatic on, three grades of devices that intercept water from top to bottom are set: 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 collecting well 5, three grades of devices that intercept water reduce direction along isohypse separately and arrange respectively, and three grades of devices that intercept water all are communicated with collecting well 5.
The first order intercepts water device 2 for catchwater, the Atmospheric precipitation of interception catchwater 2 outer rim and a small amount of crevice water; The first order intercepts water the diving that cross flow water, a small amount of crevice water and diluvial layer that Atmospheric precipitation that device 2 and the second level intercepts water between device 3 in region formed are rich in, and is discharged by the second level device 3 that intercepts water; Intercept water device 3 and the third level is intercepted water the cross flow water that between device 4, the Atmospheric precipitation in region is formed, a small amount of crevice water and the draining of downstream engineering area part in the second level, is discharged by the third level device 4 that intercepts water; Three grades are intercepted water by the unified discharge of peripheral drainage system after collecting well 5 collects, and the culvert below Project Areas 6 is as shown in Figure 1 discharged.
Below three grades of devices that intercept water are described in detail:
1, the highest point first order intercepts water the setting of device 2 and construction
(1) the highest point first order intercepts water the object that device 2 is arranged: the interception first order intercepts water beyond device 2 and charge for remittance within the scope of hills, its catchment area is general all very larger, mainly comprise the seepage water that diving is rich on the overland flow water of Atmospheric precipitation formation, crevice water and stratum, when meeting heavy rain, domatic and downstream erosion are aggravated, seriously can reduce domatic skid resistance to domatic seepage flow effect.
(2) the highest point first order intercepts water the setting of device 2: arrangement principle is whole charges for remittance of intercepting water beyond device 2 of the interception first order as far as possible, and reduce direction in change position, slope along isohypse, suit measures to local conditions to arrange in conjunction with actual conditions, keep linearly smooth and easy, longitudinal gradient must not be less than 3%.As shown in Figure 2, cross section is that chamfer is trapezoidal to cross section, and along being rich in the side of diving high slope for being obliquely installed, bottom width 50cm, top width 75cm, dark 50cm, thick 35cm mortar flag stone is built by laying bricks or stones.
(3), before construction, according to topographic map, demarcate highest point first order catchwater excavation line with suiting measures to local conditions in conjunction with actual landform, require that a setting-out is connected up, segmentation gradation excavation construction, is advisable with 50m for every section.For ensureing that catchwater is firmly stable, catchwater mortar flag stone base need embed below horizon d more than 15cm.Specific construction is identical with catchwater construction method.
2, intercept water the setting of device 3 and construction in the middle second level
(1) intercept water the object that device 3 is arranged in the second level: adopt cutoff trench 31 to tackle intercept water device 2 and the second level of the first order and to intercept water the cross flow water and a small amount of crevice water that between device 3, in scope, Atmospheric precipitation is formed; By the diving that the integral type sewer discharge diluvial layer arranged under catchwater is rich in.
(2) intercept water the setting of device 3 in the second level: arrangement principle be consider the second level intercept water device more than 3 catchment area, be rich in diving situation, direction is reduced along isohypse, suit measures to local conditions to arrange in conjunction with actual conditions, keep linear smooth and easy, upper strata catchwater is consistent with lower floor sewer longitudinal gradient, and longitudinal gradient must not be less than 3%.Its cross section as shown in Figure 3, is made up of cutoff trench 31 and the sewer 32 be located at below cutoff trench 31, is provided with dry-laid rubble layer 33 between cutoff trench 31 and sewer 32, and the cross section of cutoff trench 31 is U-shaped, along being rich in the side of diving high slope for being obliquely installed.
The cross section of sewer 32 is U-shaped, is filled in it by the first seepage material 35 above the drainage channel of bottom and drainage channel; Sewer 32 is made up along the sidewall being rich in diving high slope 1 of the second seepage material 34.Drainage channel is that concrete prefabricated plate 36 covers and formed bottom sewer; Infiltration geotextiles 37 is also provided with, coated first seepage material 35 in sewer 32.Wherein, the first seepage material 35 is rubble or cobble, and the second seepage material 34 is packed gravelly sand.
In construction, sewer 32 main body is mortar flag stone, its base must embed and be rich in below diving high slope 1 horizon d 1m, ensures that the second level of cutoff trench 31 and the sewer 32 one device 3 that intercepts water is firmly stable, and ensures the whole smooth and easy inflow sewer of water being rich in diving high slope 1.Strict guarantee sewer construction quality and cross dimensions during construction.The every block length 30cm of concrete prefabricated cover plate block 36, stays in the middle of every block termination and establishes wide 2cm, long 30cm drain tank; In attention, domatic waterproofing geomembrane paving location is that soil (diluvial layer) rock (glutenite) interface flows into sewer position in infiltration; The wide packed gravel fissure of displacement overlap joint code of 30cm is neat, and sewer groove inner bottom surface, infiltration face and end face lay infiltration geotextiles 37, fills boulder and cobble and the upper domatic gravel that fills carries out, in case pushed over by packed gravel simultaneously in sewer; Cutoff trench 31 is built on dry-laid rubble 33, must ensure that dry-laid rubble 33 is firmly stable; Sewer 32, cutoff trench 31 are built complete in time by both sides backfill, make real domatic.
3, the lowest part third level is intercepted water the setting of device 4 and construction
(1) the lowest part third level is intercepted water the object that device 4 is arranged: adopt cutoff trench 41 to tackle intercept water device 3 and the third level of the second level and to intercept water the cross flow water that between device 4, in scope, Atmospheric precipitation is formed, a small amount of crevice water and the draining of downstream engineering area part (such as express highway pavement and slope drainage, now to hold concurrently gutter effect), diluvial layer diving discharged by the integral type sewer 42 arranged for 41 times by cutoff trench.Namely this road facility that intercepts water blocks possibility to Engineering Zone, downstream seepage flow completely.
(2) the lowest part third level is intercepted water the setting of device 4: arrangement principle is suitably near downstream engineering district, and it is as far as possible parallel with Project Areas 6 main line, suit measures to local conditions to arrange in conjunction with actual conditions, retention wire cutoff trench 41 is linear smooth and easy, upper strata catchwater is consistent with lower floor sewer, and longitudinal gradient must not be less than 1%, sewer 42 and cutoff trench 41 enter collecting well 5, and cross section as shown in Figure 4.
The intercept water mortar flag stone base of device 4 of this third level must embed below horizon d 0.45m, and ensure that the third level is intercepted water device 4 safety and firmness, infiltration all can flow into sewer, and construction method and the second level of Fig. 3 device 3 that intercepts water is the same.Longitudinal drainage pipe in Fig. 4 in sewer 42 adopts PE plastic pipe 46 with holes, caliber Φ 30cm, and aperture is 1.0cm, longitudinal pitch is 7.5cm, and upper semi-circle establishes 5 rows altogether, position, hole Heterogeneous Permutation.
4, the setting of collecting well 5 and construction
The object arranging collecting well 5 is buffering water inlet, prevents spray from spilling, precipitation silt, and enters drainage system in time, therefore requires drop well size, highly, the sedimentation basin degree of depth all meets the demands.
Above-mentioned three grades of device construction precautions that intercept water:
1, needs of constructing are paid close attention to construction and are arranged and sequence of construction.To rainy season be avoided during construction, constructability, and can slump be prevented; The first domatic drainage system in construction upstream, construct downwards step by step, diluvial layer soil moisture in layer can be reduced gradually, increase construction Ability of Resisting Disturbance, landslide phenomenon is avoided to occur, the downstream engineering (such as express highway roadbed retaining wall) if first constructed, the impact such as dark, the construction disturbance of, foundation ditch large because of diluvial layer water content may cause and cave among a small circle or wide-spread decline.Have in work progress during a small amount of precipitation and catchwater segmentation is intercepted, water is arranged in domatic, avoid positive construction part to destroy by rush of water.The high gradient slope administered is after a dry season, and the domatic diving be rich in can obtain effective cutting and block up, for downstream engineering construction brings safe and convenient.
2, can arrange according to landform adjustment when cutoff trench and sewer construction, but the longitudinal gradient gradient will be ensured, ensure that current are unimpeded, the smooth and easy camber line in turning is connected, and abstains from knuckle process, and carries out terminus position and cohesive position construction control, ensure no seepage and no leakage, make drainage system complete.
3, sewer arranges embedded depth of foundation as requested, and sewer itself will be embedded in ground below 1.0m, ensures that instant northern area does not produce frost heave impact yet.
4, cutoff trench is due to comparatively large by externally temperature influence, and settlement joint is arranged together by every 10m, and conveniently construct, cutoff trench is consistent with sewer setting position, and vertically through, and pitch loose hemp fiber filleting must be meticulous careful, with antiseep.
5, excavator channel excavation is arranged, manual amendment; Reasonable arrangement slabstone, drainage rubble cobble enter construction part and ensure clean and tidy clean.The loaded filter of sewer is the packed gravel of establishment, and select the gravel material of even particle size, it is boulder and cobble that sewer inner drainage layer fills building stones, and the particle diameter in the middle part of sewer is 3 ~ 5cm, and less near geotextiles particle diameter is 1 ~ 2cm, and packing material all should be rinsed well.
Adopt the present invention to be rich in diving high slope to harness the river anti-skid structure, in the work progress of some months time, along with progressively completing of three grades of devices that intercept water, the diving of Engineering Zone soil layer significantly reduces fast, and water content significantly reduces; Along with catchwater, sewer complete comprehensively, soil layer diving in Engineering Zone is stopped substantially; Up to now through the inspection in 5 rainy seasons, the heavy rain that especially Xia Qiu Tianshui in 2013 is rare, causing Bao-Tian motorway many places to come down, cave in, when speedway is closed, this place is still reliable and stable.
Embodiment
Get the bid Baoji of undertaking the construction of in Tianshui Expressway BT17 contract section work progress in Gansu Co., Ltd of construction of road and bridge group, Combining with terrain, the hydrology and geology characteristic on the left of section separated subgrade of XK77+420 ~ 560, have employed the anti-skidding method of harnessing the river being rich in diving high slope comprehensively fully and carried out the comprehensive regulation, achieve significant punishment effect and 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, the depth of fill 1.39 ~ 6.42m, the left side toe depth of fill 0.2 ~ 2.1m, and original ground horizontal wall inscription is comparatively steep, the gradient 17 ~ 27 °, belongs to steep slope subgrade construction.This construction area topographic map as shown in the figure.On the left of roadbed, 93.5m(equals distance) beyond for Red Sandstone hills, natural grade 45 ~ 65 °, mountain top and hillside cover by dense shrub; 93.5m(equals distance) within be denudation slope lamination based on sandy loam, natural grade 17 ~ 27 °, length of grade 65.5 ~ 102.1m, height about 36.2m(in slope is counted from roadbed center line original ground), mainly Rehabilitated land, tall grass of filling with covers sparse, soil property is soft, be rich in diving and crevice water, diluvial layer thickness 0 ~ 5m, average thickness is about 3.5m.This region catchment area is large, and personnel's footgear is made an on-the-spot survey in exploration and the frequent submergence of During Initial Stage Construction individual lot infiltration mud.
1.2 formation lithology
Disclose according to geology survey and probing, the master stratum of this steep slope subgrade section exposure is Quaternary system slide rock (Q
4 dl) and Cretaceous System Maiji mountain group (Km) sandy gravel stratum, XK77+490 king-pile position bore hole columnar section is described below:
Q
4 dlsandy loam: light red; Slightly tide-moist; Hard plastic-plastic; The loose inequality of soil property, pores'growth, containing sand and dust, local folder loess thin layer.[σ o]=160kPa, thickness 4.0m.
Km completely decomposed glutenite: bronzing; Protolith structure, structure destroy completely in loose shape, and rock matter is softer.[σ o]=300kPa, thickness 3.60m.
Severely-weathered glutenite: bronzing, shale is weak cementing, and organizational styucture major part is destroyed, and rock matter is softer, developmental joint fissure, and gravel is mainly the particles such as quartz, sandstone, schist and forms, and gravel footpath is 4 ~ 7cm, and core is prose style free from parallelism shape.[σ o]=400kPa, thickness 9.40m.
Weak Weathered Sand conglomerate: bronzing, shale is weak cementing, middle coarse grained texture, and rock matter is softer, and joint fissure is less, and gravel is mainly the particles such as quartz, sandstone, schist and forms, and gravel footpath is 4 ~ 7cm, and core is complete, in short cylinder.[σ o]=600kPa, thickness 1.96m, does not expose.
The 1.3 meteorological and hydrology
This section belongs to sub-moistening continental climate district, warm temperate zone, mean annual precipitation 550 ~ 679.1mm, year rainfall distribution uneven, focused mostly on 6 ~ September, account for 73.5% of annual precipitation, and occur mainly with heavy rain form.Maximum depth of frozen ground 90cm.
This abrupt slope, region groundwater occurrence mainly contains Quaternary pore water and Bedrock Crevice Water.Quaternary pore water is mainly distributed in diluvial layer, and the water yield is little, and depth to water is more shallow, is mainly Atmospheric precipitation supply; Bedrock Crevice Water is mainly distributed in the bedrock fracture on hills, and greatly, depth to water is unstable, affects greatly by Atmospheric precipitation for the change of its water yield.Underground water is communicated with better with earth's surface seepage water, and Source Of Supply is similar, affects greatly by Atmospheric precipitation.
1.4 Engineering Geology Evaluation
On the left of this section of steep slope subgrade, hillside landform is steep, and covering layer is thin, the exposure of local red glutenite.Atmospheric precipitation easily forms overland flow or coombe runoff on earth's surface, easily pore ground water is formed in underground, rainy season slope body covering layer and glutenite completely decomposed layer inundated intenerating anti-slide performance reduce, a series of downslide may be formed wriggle along severely-weathered interface, come down and collapse, stable condition is poor, must process and could stablize.
22 3 grades of devices that intercept water divide the system of differentiation to be rich in the anti-skidding process of harnessing the river of diving high slope
The 2.1 highest point first order intercept water device arrange with construction
The long 151m of catchwater, longitudinal gradient-14.3%; The long 43m in the gutter be connected with collecting well, longitudinal gradient-18.5%.This catchwater portion red sandstone exposure, diluvial layer thinner thickness (0 ~ 1.2m), catchwater is all confirmed on glutenite, and embeds gravel rock stratum more than 15cm, ensures firmly stable.
Intercept water device setting and construction in the 2.2 middle second level
Intercept water flute length 87.1m, the long 90.6m of sewer, longitudinal gradient-3.4%.Intercept water setting position diluvial layer thickness 2.0 ~ 3.4m in this second level, cutoff trench excavation construction at twice during construction, and sewer mortar flag stone base is embedded in below fresh scar 1m, ensures that infiltration all can flow into sewer.
Between 2.3 lowest parts the third level intercept water device arrange with construction
The long 101m of cutoff trench, sewer, longitudinal gradient-4.5%.This cutoff trench is held concurrently, discharge road surface horizontal wall inscription draining and left side filled out wide 3% slope drainage of 3m, gutter draining, the draining of secondary platform catchwater etc. on the left of section roadbed of XK77+340 ~ 420.Enter collecting well and enter peripheral drainage system from culvert.
This cutoff trench, sewer position diluvial layer thickness 2.8 ~ 3.6m, cutoff trench divides two sections of excavation constructions, and sewer mortar flag stone base must embed below fresh scar 0.45m, ensures that infiltration all can flow into sewer.
2.4 constructions arrange and sequence of construction
Catchwater, cutoff trench and sewer on constructing slope 11 ~ December short of rain; Second Year to be constructed the retaining wall under slope 3 ~ April; Remove roadbed table soil May, excavate the humus soil being rich in root system, original place base airing is rolled, filling roadbed.
Avoid rainy season in construction, constructability, and can slump be prevented; The first domatic drainage system in construction upstream, construct downwards step by step, diluvial layer soil moisture in layer can be reduced gradually, increase construction Ability of Resisting Disturbance, reduce landslide phenomenon to occur, if first construct downstream retaining wall, the impact such as, foundation ditch dark, construction disturbance large because of diluvial layer water content may cause and cave among a small circle or wide-spread decline.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. one kind is rich in diving high slope and harnesses the river anti-skid structure, it is characterized in that: comprise the first order intercept water device, the third level of device, the second level of intercepting water and to intercept water device and collecting well, first order device, second level device and the third level device that intercepts water that intercepts water that intercepts water is located at from top to bottom and is rich in diving high slope, and is all communicated with collecting well; The first order device that intercepts water is catchwater, and intercept water device and the third level of the second level is intercepted water the sewer that device all comprises cutoff trench and be located at below cutoff trench.
2. be rich in diving high slope as claimed in claim 1 to harness the river anti-skid structure, it is characterized in that: first order device, second level device and the third level device that intercepts water that intercepts water that intercepts water reduces direction along isohypse respectively and arranges.
3. be rich in diving high slope as claimed in claim 1 or 2 to harness the river anti-skid structure, it is characterized in that: the first order intercept water device tackle and discharge be positioned at that the first order intercepts water device outer rim be rich in domatic charge for remittance.
4. be rich in diving high slope as claimed in claim 1 or 2 to harness the river anti-skid structure, it is characterized in that: the intercept water cutoff trench of device of the second level tackle and discharged intercept water device and the second level of the first order and to intercept water the cross flow water of Atmospheric precipitation formation in scope between device and a small amount of crevice water; The intercept water sewer of device of the second level is tackled and discharges the diving being rich in diving high slope being positioned at the second level and intercepting water above device.
5. be rich in diving high slope as claimed in claim 1 or 2 to harness the river anti-skid structure, it is characterized in that: the intercept water cutoff trench of device of the third level is tackled and discharged intercept water device and the third level of the second level and to intercept water the cross flow water and a small amount of crevice water that between device, in scope, Atmospheric precipitation is formed, the intercept water sewer of device of the third level tackle and is discharged to intercept water in the second level device and the third level being rich between device of intercepting water and to dive under water the diving of high slope.
6. be rich in diving high slope as claimed in claim 5 to harness the river anti-skid structure, it is characterized in that: the third level device that intercepts water arranges Project Areas as far as possible under being rich in diving high slope, discharges the part charge for remittance of Project Areas.
7. be rich in diving high slope as claimed in claim 1 to harness the river anti-skid structure, it is characterized in that: the cross section of sewer is U-shaped, filled by the first seepage material above the drainage channel of bottom and drainage channel in it; Sewer is made up along the sidewall being rich in diving high slope of the second seepage material.
8. be rich in diving high slope as claimed in claim 7 to harness the river anti-skid structure, it is characterized in that: the first seepage material is rubble or cobble; Second seepage material is packed gravelly sand.
9. be rich in diving high slope as claimed in claim 7 to harness the river anti-skid structure, it is characterized in that: this drainage channel is that concrete prefabricated plate covers and formed bottom sewer, or for burying the pipe fitting of holes at lateral wall bottom sewer underground.
10. be rich in diving high slope as claimed in claim 7 to harness the river anti-skid structure, it is characterized in that: in sewer, be also provided with infiltration geotextiles, coated first seepage material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396366.XA CN105064380B (en) | 2015-07-08 | 2015-07-08 | Harnessed the river anti-skid structure rich in diving high slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396366.XA CN105064380B (en) | 2015-07-08 | 2015-07-08 | Harnessed the river anti-skid structure rich in diving high slope |
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| Publication Number | Publication Date |
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| CN105064380A true CN105064380A (en) | 2015-11-18 |
| CN105064380B CN105064380B (en) | 2017-12-12 |
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| CN106930303A (en) * | 2017-05-05 | 2017-07-07 | 王力刚 | A kind of soil-slope biological duct draining protective slope structure and its construction method |
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| CN107829746A (en) * | 2017-11-01 | 2018-03-23 | 中国恩菲工程技术有限公司 | Vertical shaft intercepts water and structure and has its a vertical shaft |
| CN108486988A (en) * | 2018-05-25 | 2018-09-04 | 中国电建集团成都勘测设计研究院有限公司 | Convenient for the roadbed sewer structure of dredging |
| CN110080254A (en) * | 2019-05-14 | 2019-08-02 | 河北工业大学 | Draining friction pile-water guide culvert structure and construction method for oblique slope reinforcement |
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| CN105064380B (en) | 2017-12-12 |
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