CN206189417U - Geotechnique's check room barricade - Google Patents
Geotechnique's check room barricade Download PDFInfo
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- CN206189417U CN206189417U CN201621085346.7U CN201621085346U CN206189417U CN 206189417 U CN206189417 U CN 206189417U CN 201621085346 U CN201621085346 U CN 201621085346U CN 206189417 U CN206189417 U CN 206189417U
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Abstract
The utility model discloses a geotechnique's check room barricade, include the basal layer and lay the side slope that forms by geotechnological check room on the basal layer, the side slope is certain slope, the side slope includes higher level's barricade and subordinate's barricade, and higher level's barricade sets up on subordinate's barricade, and higher level's barricade bottom is for subordinate barricade top slope direction certain distance that staggers edgewise, subordinate's barricade height is height of side slope's 38~58. The utility model discloses the barricade adopts secondary structure, through the respective height of two -stage barricade about rationally setting up, reaches staggered distance between the two, can effectively reduce the horizontal displacement volume of barricade, increases the overall stability of barricade, has improved barricade factor of safety.
Description
Technical field
The utility model is related to slope project protection technology field, more particularly to a kind of geotechnical grid barricade.
Background technology
In recent years, with the extensive development of China's expressway construction, high-filled embankment and high cutting slope are built
If the stability and security of slope of highway turns into one of key issue of generally existing in highway construction, and it is not only affected entirely
Completion time of project of engineering, construction quality and construction costs, and very big is all brought to the safety and social benefit during operation
Influence, therefore it is the important step for improving Highway Construction Period and period of service benefit to strengthen the research of slope retaining technology.
It is gradually perfect with national expressway network, carried out in mountain area substantially with proposed highway building at present,
Route major part is in Freeway of Mountain Range, route is passed through with cutting or embankment form in many sections, so that
Need substantial amounts of slope project；Meanwhile, the ecological environment for filling necessarily on along of cutting excavation and embankment high produces influence.Such as
What accomplishes that while highway construction, stability of slope should be ensured, makes construction smooth, it is ensured that highway construction quality,
It is ecological along effectively recovering again, the destruction to natural ecological environment is reduced as far as possible, make protection works and surrounding environment and from
Right coordination of landscape, the theory for realizing built environment friendly highway is the key technical problem that this highway is faced
One of.Meanwhile, as country continues to increase to existing cultivated land protection dynamics, reducing to take up an area has turned into the one of expressway construction
Individual important guiding principle, this is required in Freeway of Mountain Range building highway, in the case where route alignment requirement is met,
In addition to trying one's best in the form of light fill and low path moat, roadbed supporting construction can be largely used, put the ratio of slope of gradient slope, reduce road
Base cross section width, the purpose of occupation of land is reduced to reach, and the particularly linear restricted Special zone in mountain area is even more so.
2 points of the above, forces engineers and technicians must ensure stability of slope while highway construction, enables construction smoothly
Carry out, it is ensured that highway construction quality, it is effectively ecological along recovery again, the destruction to natural ecological environment is reduced as far as possible, with
And reduce the area occupied of whole construction work.
A kind of flexible retaining wall with rigid support is disclosed in Chinese utility model patent CN101892675A, by
The rigid bracing beam and gravel drainage blanket coupled with side slope are provided with the 1/2 of wall height in one layer of making, by rigid support
Play a part of to increase barricade strength and stiffness, so as to enhance the resistance to overturning of barricade, improve safety coefficient, but its
Still conventional stage barrier wall structure is used.
A kind of self-locking Ecological Retaining Wall structure, the barrier wall structure are disclosed in Chinese utility model patent CN202718138U
In side slope be set to two sections, flat slope is wherein provided between two sections side slope, this barrier wall structure alleviates wall
The extruding force of the side slope of banketing of body, makes side slope not allow yielding or unstability, meanwhile, trees can be planted on flat slope, built with side slope
Grass planting on block constitutes preferably ecology landscaping effect.Although, it is disclosed that a kind of two grades of barrier wall structures, not to upper and lower
Influence of the two-stage barricade concrete structure to barricade stability carries out in-depth study, also, the flat slope between two-stage side slope up and down
Also just for the sake of reaching the ecological effect beautified, the spacing without flat slope between the upper and lower two-stage of consideration is to barricade stability
Influence.
Utility model content
The purpose of this utility model is to provide a kind of using two grades of barrier wall structures, by rationally setting upper and lower two-stage barricade
Between structure, can effectively reduce the horizontal displacement of barricade, increase the resistance to overturning of barricade, the geotechnique for improving its safety coefficient
Cell compartment barricade.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of geotechnical grid barricade, including basal layer and on basal layer by geotechnical grid lay side slope, it is described
Side slope be in certain gradient, the side slope include higher level's barricade and subordinate's barricade, higher level's dams setting on subordinate's barricade, higher level
Barricade bottom is staggered a certain distance relative to subordinate barricade top along grade of side slope direction, and subordinate's wall height is side slope
The 3/8~5/8 of height.
Further, subordinate's wall height is the 3/8~2/5 of slope height.
Further, subordinate's wall height is the 2/5 of slope height.
Further, higher level's barricade bottom left end relative to the distance that subordinate barricade top right-hand member staggers backward for 0.5~
2m。
Further, higher level's barricade bottom left end is 1m relative to the distance that subordinate's barricade top right-hand member staggers backward.
Further, subordinate's barricade top is provided with waterproof layer, and higher level's dams setting is on waterproof layer.
Further, the waterproof layer is laid using sixteen dirt.
The utility model uses two grades of barrier wall structures, by the height and higher level's barricade to higher level's barricade and subordinate's barricade with
The distance staggered between subordinate's barricade is reasonably configured, and in the case of quantities identical, effectively reduces the water of barricade
Flat displacement, enhances the resistance to overturning of barricade, improves the safety coefficient of barricade；Meanwhile, taken into account barricade stability and
Retaining wall project occupation of land area contradiction between the two, stagger between upper and lower two-stage barricade distance by rationally setting, and both protects
The resistance to overturning of barricade has been demonstrate,proved, the floor space of construction work has been reduced as far as possible again.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is height of subordinate's barricade relative to side slope than the relation schematic diagram between barricade safety coefficient；Wherein (I)
Different height is than the schematic diagram between barricade safety coefficient during for c=1, different height ratio and barricade safety when (II) is for c=2
Schematic diagram between coefficient.
Fig. 3 is staggering between distance and barricade lateral wall deflection amount between higher level's barricade bottom and subordinate's barricade top
Relation schematic diagram.
Fig. 4 be three kinds of different subordinate's wall heights than barricade, between correspondence higher level's barricade bottom and subordinate's barricade top
Difference stagger apart from when and barricade safety coefficient between relation schematic diagram.
In figure：1st, basal layer, 2, waterproof layer, 3, side slope, 4, subordinate's barricade, 5, higher level's barricade, 6, top layer；
The height of a, subordinate's barricade；The height of b, side slope；C, higher level's barricade bottom left end are relative to subordinate's barricade top right
The distance that end is staggered backward, c values are Chong Die between higher level's barricade bottom to represent subordinate's barricade top when bearing.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of geotechnical grid barricade, including basal layer 1 and formed by geotechnical grid laying on basal layer 1
Side slope 3, the side slope 3 is in certain gradient, and the side slope 3 uses secondary structure, including higher level's barricade 5 and subordinate's barricade 4, on
Waterproof layer 2 is provided between level barricade 5 and subordinate's barricade 4, higher level's barricade 5 is arranged on the waterproof layer 2, the bottom of higher level's barricade 5
Stagger a certain distance along grade of side slope direction relative to the top of subordinate's barricade 4, subordinate's wall height a is slope height b
3/8~5/8.
By setting up computation model, during to different subordinate's wall height ratios, the safety coefficient of barricade is compared, and is shown in Table 1；
From table 1 it will be seen that when subordinate's wall height is set to the 3/8~5/8 of slope height, barricade has peace higher
Overall coefficient and stability；When subordinate's wall height for slope height 2/5, the overall security of barricade can be both taken into account, and
The stability of higher level's barricade and subordinate's barricade can be ensured, now, barricade can obtain one very in stability and safety coefficient
Good resultant effect.
The subordinate's barricade of table 1 and side slope different height than when corresponding barricade safety coefficient
Such as Fig. 2, be subordinate's barricade relative to side slope different height than respectively corresponding barricade safety coefficient relation show
It is intended to, as can be seen from the figure as a/b=2/5, the safety coefficient highest of barricade, i.e., now the stability of barricade is best.
In order to further illustrate the utility model geotechnical grid barrier wall structure to being risen in barricade stability and safety coefficient
Effect, the barrier wall structure to following several situations is analyzed.In the case of wall height identical, following three are set up
Plant barricade computation model；
Barricade 1：Wall height is 16m, using conventional one-level barrier wall structure；
Barricade 2：Wall height is 16m, using two grades of barrier wall structures of the utility model, higher level's barricade and subordinate's wall height
Identical, the distance staggered between higher level's barricade and subordinate's barricade is 1m；
Barricade 3：Wall height is 16m, and using two grades of barrier wall structures of the utility model, wherein higher level's wall height is side slope
The 3/5 of height, subordinate's wall height is the 2/5 of slope height, and the distance staggered between higher level's barricade and subordinate's barricade is 1m；
Corresponding safety coefficient is shown in Table 2 respectively for above-mentioned three kinds of barrier wall structures institute.
Safety coefficient corresponding to the different barrier wall structures of 2 three kinds of table
| Barricade type | Barricade safety coefficient |
| Barricade 1 | 1.175 |
| Barricade 2 | 1.367 |
| Barricade 3 | 1.375 |
It is analyzed by above-mentioned three kinds of barrier wall structures, can be drawn in the analysis result be given from table 2, this reality
With the more conventional one-level barricade of new provided barrier wall structure, safety coefficient improves 17%.
Equally, in the case of wall height identical, increase wall height to 20m, set up following three kinds of barricades and calculate mould
Type, the safety coefficient to above-mentioned three kinds of structure barricades is calculated.
Barricade 4：Wall height is 20m, using conventional one-level barrier wall structure；
Barricade 5：Wall height is 20m, using two grades of barrier wall structures of the utility model, higher level's barricade and subordinate's wall height
Identical, the distance staggered between higher level's barricade and subordinate's barricade is 1m；
Barricade 6：Wall height is 20m, and using two grades of barrier wall structures of the utility model, wherein higher level's wall height is side slope
The 3/5 of height, subordinate's wall height is the 2/5 of slope height, and the distance staggered between higher level's barricade and subordinate's barricade is 1m；
Corresponding safety coefficient is shown in Table 3 respectively for above-mentioned three kinds of barrier wall structures institute.
Safety coefficient corresponding to the different barrier wall structures of 3 three kinds of table
| Barricade type | Barricade safety coefficient |
| Barricade 4 | 0.980 |
| Barricade 5 | 1.121 |
| Barricade 6 | 1.131 |
From table 3 it can be seen that the safety coefficient of barricade 4 is less than 1, it is unstable structure, i.e., when wall height increases to 20m
, there is the situation of unstability in Shi Caiyong conventional stage barrier wall structures；After two grades of measures of barricade, the safety system of barricade 5 and 6
Number is all higher than 1, and barricade turns into rock-steady structure.That is, being continuously increased with barricade total height, the gear in the utility model
Wall construction advantage is more obvious, and the effect played in Practical Project is bigger.
The utility model barricade uses secondary structure, and stagger a certain distance between higher level's barricade and subordinate's barricade, and it is wrong
The size for opening distance equally exists very big influence to the stabilization and safety coefficient of barricade, it is therefore desirable to higher level's barricade with
Influence of the distance to barricade horizontal displacement of staggering between level barricade is analyzed.As shown in figure 3, there is shown higher level's barricade
Stagger between top right-hand member and subordinate's barricade bottom left end apart from c be -3m, -2m, -1m, 0m and 1m when (c values for bear when represent
Level barricade top is Chong Die between subordinate's barricade bottom), the corresponding barricade lateral wall deflection amount of difference.Can from Fig. 3
Go out, upper and lower two-stage barricade overlapping widths are bigger, and the horizontal displacement of barricade wall is bigger, and with the reduction of overlapping widths, gear
Wall lateral wall deflection amount is gradually reduced.Stagger completely when between higher level's barricade and subordinate's barricade, higher level's barricade top right-hand member and
When staggering distance between the left end of subordinate's barricade bottom for 1m, the horizontal displacement of barricade wall is minimum, and now higher level's barricade is complete
Subordinate's barricade is acted on as filled load.Meanwhile, the distance staggered between higher level's barricade and subordinate's barricade is bigger, barricade wall
Horizontal displacement just it is smaller, under conditions of economy and convenient construction is met, can suitably increase higher level's barricade and subordinate gear
Stagger distance between wall；But so simultaneously it is meant that Retaining wall engineering needed for take area it is bigger, therefore, practice of construction
It is while take into account barricade stability and construction work floor space, generally using subordinate's barricade top right-hand member and subordinate in engineering
It is the distance of 0.5~2m between the left end of barricade bottom.In the case where execution conditions are allowed, right-hand member and subordinate at the top of subordinate's barricade
Can so be taken in barricade stability and construction work floor space using the distance that staggers of 1m between the left end of barricade bottom
Obtain a good resultant effect.
As shown in figure 4, a/b=2/5 is sets forth, it is wrong respectively between higher level's barricade and subordinate's barricade when 1/2 and 3/4
The relativity between safety coefficient corresponding to different distance is opened, it can be seen that when subordinate's wall height is that side slope is high
Degree 2/5 (i.e. a/b=2/5) when, between higher level's barricade and subordinate's barricade stagger influence of the distance to barricade safety coefficient compared with
The influence of other two kinds of structure barricades (i.e. a/b=1/2 or 3/4) is more obvious, that is to say, that when subordinate's wall height is that side slope is high
The 2/5 of degree, while when the distance between subordinate barricade top right-hand member and higher level's barricade bottom left end are for 0.5~2m, now barricade
With a preferable stability.
The utility model uses two grades of barrier wall structures, by the height and higher level's barricade to higher level's barricade and subordinate's barricade with
The distance staggered between subordinate's barricade is reasonably distributed and set, and in the case of quantities identical, effectively reduces gear
The horizontal displacement of wall, enhances the resistance to overturning of barricade, improves the safety coefficient of barricade.Meanwhile, take into account barricade steady
Qualitative and Retaining wall project occupation of land area contradiction between the two, by rationally set stagger between upper and lower two-stage barricade away from
From, the resistance to overturning of barricade had both been ensure that, reduce the floor space of construction work as far as possible again.
The utility model geotechnical grid Retaining wall is comprised the following steps that：
1st, according to design drawing, unwrapping wire is carried out, is excavated, stop opening when mechanical equivalent of light excavation is to away from substrate 20~30cm of designed elevation
Dig, manually clear up to design altitude, rolled with vibrating roller；Its standard reference《Highway Roadbed Construction Technology specification》In
Relevant provision perform.On-the-spot test is carried out to foundation bearing capacity, it is ensured that its requirement for meeting foundation bearing capacity.
2nd, making basal layer；Basal layer is made up of cement with sand gravel stirring, and wherein the content of cement is 20%, sand gravel
Content be 80%, a diameter of 0.5~2mm of sand, a diameter of 2~50mm of gravel, use length 1.5m, the reinforcing bar of diameter 12mm
Based on strengthening nail, along foundation length direction every 2m arrange one, barricade thickness direction every 1m arrange one, squeeze into base
Plinth plays reinforcement effect.After the completion of basal layer construction, geotechnical grid is opened on basal layer, be 50cm, a diameter of 12mm by length
Reinforcing bar prolong barricade length direction and arrange one every 2m, one is arranged every 1m along barricade thickness direction, with reinforcing bar by geotechnique
Cell compartment opens fixation, inside fills out cement-sandy gravel, and cement-sandy gravel is identical with basal layer.
3rd, making bottom gravel drainage blanket；Geotechnical grid, interior back-up sand gravel, as wall body draining are opened on rigid layer
Layer.
4th, making subordinate barricade；Geotechnical grid is laid on the gravel drainage blanket of bottom, is banketed with loading machine, loading machine is by entering
Mouth direction starts down soil, while being aided with artificial leveling；Walked in the cell compartment that loading machine bankets after leveling, successively forward to the layer
Banket and finish, forbid loading machine to roll, destroy geotechnical grid；Carry out compactness and flatness detection in time, compactness is more than setting
Evaluation, flatness is less than 2.0cm.Geotechnical grid filler requirement even particle size, maximum particle diameter cannot be greater than 10cm；Apart from face
Plate relatively near, large roller is difficult close position small vibrating and rams compacting.On the complete bottom first layer fill stratum of making
Making second layer fill stratum, making third layer fill stratum on second layer fill stratum are until subordinate's barricade top, one is increased per upward
Layer 10~20cm of geotechnical grid receding, every layer of geotechnical grid is opened after banketing, all using length 50cm, the steel of diameter 12mm
Muscle anchor connection, is used to strengthen the globality of barricade.
5th, making waterproof layer；When at making to wall height 2/5, start making waterproof layer, waterproof layer is using sixteen ashes
Soil is filled, and for the waterproof of subordinate's barricade, barricade is directly penetrated at the position for preventing rainwater from staggering from higher level's barricade and subordinate's barricade
Wall.
6th, making higher level barricade；On the basis of waterproof layer, with reference to the construction method of making subordinate barricade, kept off with subordinate
Right-hand member the stagger position of 1m in wall top starts making higher level's barricade backward, until the height of barricade.
7th, making gravel drainage blanket；To bottom gravel drainage blanket upwards every one layer of gravel drainage blanket of 2m makings, each layer sand
The paving method of gravel drainage blanket is identical with the paving method of bottom gravel drainage blanket.
8th, making barricade top；Barricade top is filled using sixteen dirt, makes U-shaped plough groove type section, can in time by gear
Rainwater discharge at the top of wall, plays a good waterproof effect.
Specification and drawings of the present utility model are considered as illustrative and not restrictive, are disclosed in the utility model
Technical scheme on the basis of, those skilled in the art is according to disclosed technology contents, it is not necessary to which performing creative labour is just
Some can be made to some of them technical characteristic to replace and deform, these are replaced and deform in protection model of the present utility model
In enclosing.
Claims (6)
1. a kind of geotechnical grid barricade, including basal layer and the side slope laid by geotechnical grid on basal layer, the side
Slope is in certain gradient, it is characterised in that：The side slope includes higher level's barricade and subordinate's barricade, and higher level's dams setting keeps off in subordinate
On wall, higher level's barricade bottom is staggered a certain distance, subordinate's barricade relative to subordinate barricade top along grade of side slope direction
Highly it is the 3/8~5/8 of slope height.
2. geotechnical grid barricade according to claim 1, it is characterised in that：Subordinate's wall height is the 3/8 of slope height
~2/5.
3. geotechnical grid barricade according to claim 1, it is characterised in that：Subordinate's wall height is the 2/5 of slope height.
4. geotechnical grid barricade according to any one of claim 1 to 3, it is characterised in that：Higher level's barricade bottom left end
The distance staggered backward relative to subordinate's barricade top right-hand member is 0.5~2m.
5. geotechnical grid barricade according to claim 4, it is characterised in that：Higher level's barricade bottom left end keeps off relative to subordinate
The distance that wall top right-hand member staggers backward is 1m.
6. geotechnical grid barricade according to claim 1, it is characterised in that：Subordinate's barricade top is provided with waterproof
Layer, higher level's dams setting is on waterproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621085346.7U CN206189417U (en) | 2016-09-27 | 2016-09-27 | Geotechnique's check room barricade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621085346.7U CN206189417U (en) | 2016-09-27 | 2016-09-27 | Geotechnique's check room barricade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206189417U true CN206189417U (en) | 2017-05-24 |
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ID=58730193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621085346.7U Active CN206189417U (en) | 2016-09-27 | 2016-09-27 | Geotechnique's check room barricade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206189417U (en) |
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2016
- 2016-09-27 CN CN201621085346.7U patent/CN206189417U/en active Active
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