A kind of soil nailed wall retaining structure suitable for powder land floor slope foundation pit
Technical field
The utility model relates to construction equipment technical fields, more particularly to one kind to be suitable for powder land floor slope foundation pit
Soil nailed wall retaining structure.
Background technique
Currently, soil nail wall slope retaining or Base hole supporting technology application are very extensive, it be side slope or foundation pit by
In layer digging process, the soil nailing of comparatively dense is performed in situ in slope surface to strengthen the soil body, and m esh-hanging sprayed concrete is to stablize slope
Face.The construction process of usual soil nail wall are as follows: slope excavating → sloping surface arrangement → brill soil nailing hole → sets muscle → soil nailing hole grouting → slope
Face linked network → slope concrete injection.Specifically, soil nailed wall retaining structure includes soil nailing fixed part and surface layer protection department, and it is existing
The main structure of surface layer protection department is concrete topping in technology, when construction on reinforced mesh gunite concrete can be formed it is mixed
Solidifying soil surface layer.
But surrounding enviroment can be polluted during gunite concrete, and result in work since Cost of Concrete is higher
Journey cost is high, and therefore, soil nailing wall structure in the prior art runs counter to energy-saving and environment-friendly green development view.
Utility model content
The purpose of this utility model is to provide a kind of soil nailed wall retaining structure suitable for powder land floor slope foundation pit,
Have the characteristics that energy conservation and environmental protection, easy construction, is compared to popularization and application that traditional soil nailing wall structure is more suitable for large area.
The utility model provides a kind of soil nailed wall retaining structure suitable for powder land floor slope foundation pit, by protective facing and
Soil nailing composition, the protective facing includes stress steel plate and the decorative layer and filter layer for being located at stress steel plate two sides,
The soil nailing successively penetrates the decorative layer, the stress steel plate and the filter layer and slopes through fixation;Wherein,
The soil nailing includes integrally formed drill bit and tension section, and antitorque section and the first nut being detachably connected,
The tension section and it is described antitorque section be Detachable connection structure, the tension section includes round table-like preceding tension section and rear tension
Section, the front end external diameter of the preceding tension section is identical as the outer diameter of the bit face, the rear end outer diameter of the preceding tension section and institute
The front end external diameter for stating rear tension section is identical, and the rear end outer diameter of the rear tension section is identical as antitorque section of the outer diameter, the brill
The outer diameter of end surface is less than antitorque section of the outer diameter, and the preceding tension section is equipped with rotation screw thread, the rear tension Duan Shangshe
There is hangnail.
Preferably, fixation hole is offered on the stress steel plate, the soil nailing passes through the fixation hole and slopes through solid
It is fixed.
Preferably, multiple mounting holes, and the spiral shell being used cooperatively with the mounting hole are also provided on the stress steel plate
Bolt and the second nut.
Preferably, being additionally provided with gasket ring between second nut and the decorative layer, multiple connections are opened up on the gasket ring
Hole.
Further, flexible protective rope, the end of the flexible protective rope are additionally provided between adjacent second nut of institute
It is fixed by the connecting hole.
Preferably, the thread groove of the preceding tension section is equipped with multiple perforative through-holes.
Preferably, further include multiple reinforcing ribs for being used for fixed function, the both ends of the reinforcing rib respectively with adjacent institute
State the first nut-welding.
Preferably, the decorative layer and the filter layer respectively with the mounting hole and the fixation hole corresponding position
Through hole is offered, is embedded with lantern ring on the through hole.
Illustratively, the thickness d of the decorative layer1For 1cm, the thickness d of the filter layer2For 1cm.
Optionally, the decorative layer includes decorative plastic lawn and the nettle base for decorative plastic lawn described in carry
Plinth, the filter layer are permeable geotextile layer.
Compared with prior art, the soil nailed wall retaining structure provided by the utility model suitable for powder land floor slope foundation pit
It has the advantages that
It is provided by the utility model suitable for the soil nailed wall retaining structure of powder land floor slope foundation pit, by protective facing and
Soil nailing forms, and in work progress, first in the two sides of stress steel plate fastening installation decorative layer and filter layer, completes protection face
After the assembling of layer, punched using power auger in the corresponding position of slopes, so that soil nailing is fitted into hole correspondingly, finally again
It is mounted on assembled protective facing is corresponding on soil nailing, and the installation of soil nail wall can be completed with the fastening of the first nut, lead to
The setting for crossing stress steel plate can greatly enhance the stress of protective facing, while can make the infiltration in slopes by the setting of filter layer
Water is discharged in time, avoids ponding retention osmotic in soil, and decorative layer can beautify the surface of soil nail wall, have greening ring
The effect in border.
In addition, soil nailing include integrally formed drill bit and tension section, be detachably connected antitorque section and the first nut, its
In, tension section and antitorque section are round table-like, and the rear end outer diameter of the front end external diameter of tension section to antitorque section is gradually increased, in this way
Design can reduce resistance when nailing, and antitorque section uses detachable connection method with tension section, can be according to slopes environment certainly
By antitorque section of selection different length, such as rock slopes select antitorque section of 10cm length, and sandy soil slopes select 15cm length
Antitorque section, increase versatility of the soil nailing in different slopes environment.Moreover, setting rotation screw thread can in preceding tension section
It is further reduced the resistance of nailing, hangnail is arranged in rear tension section can be improved its dynamics for grabbing soil, and then it is embedding to increase soil nailing
Enter the fastness of slopes.
Not only in this, it can realize that the secondary recovery of protective facing utilizes by dismantling the first nut, be compared to traditional
Concrete structure, the soil nailed wall retaining structure provided by the utility model suitable for powder land floor slope foundation pit also have energy-saving ring
The characteristics of guarantor, convenient for the popularization and application of large area.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings:
Fig. 1 is the soil nail wall that multiple soil nailed wall retaining structures suitable for powder land floor slope foundation pit form in the present embodiment
Schematic diagram;
Fig. 2 is the schematic diagram of the soil nailed wall retaining structure suitable for powder land floor slope foundation pit;
Fig. 3 is the structural schematic diagram of soil nailing in Fig. 2;
Fig. 4 is the top view of gasket ring in Fig. 2;
Fig. 5 is the sectional view of protective facing in Fig. 2.
Appended drawing reference:
1- soil nailing, 2- protective facing;
3- flexible protective rope, 11- drill bit;
12- tension section, antitorque section of 13-;
The first nut of 14-, tension section before 121-;
Tension section after 122-, 123- rotate screw thread;
124- hangnail, 125- through-hole;
21- stress steel plate, 22- decorative layer;
23- filter layer, 41- bolt;
The second nut of 42-, 43- gasket ring;
44- connecting hole.
Specific embodiment
In order to further illustrate the soil nailed wall retaining structure provided in this embodiment suitable for powder land floor slope foundation pit, under
Face is described in detail in conjunction with Figure of description.
Please refer to Fig. 2 and Fig. 3, the soil nailed wall retaining structure provided in this embodiment suitable for powder land floor slope foundation pit,
It is made of protective facing 2 and soil nailing 1, protective facing 2 includes stress steel plate 21 and the decoration for being located at 21 two sides of stress steel plate
Layer 22 and filter layer 23, soil nailing 1 successively penetrate decorative layer 22, stress steel plate 21 and filter layer 23 and slopes through fixation;Wherein,
Soil nailing 1 includes integrally formed drill bit 11 and tension section 12, and antitorque section 13 and the first spiral shell being detachably connected
Mother 14, tension section 12 and antitorque section 13 are Detachable connection structure, and tension section 12 includes round table-like preceding tension section 121 and rear anti-
Section 122 is drawn, the front end external diameter of preceding tension section 121 is identical as the outer diameter of 11 end face of drill bit, and the rear end outer diameter of preceding tension section 121 is with after
The front end external diameter of tension section 122 is identical, and the rear end outer diameter of rear tension section 122 is identical as antitorque section 13 of outer diameter, 11 end face of drill bit
Outer diameter be less than antitorque section 13 of outer diameter, preceding tension section 121 is equipped with rotation screw thread 123, and rear tension section 122 is equipped with hangnail
124。
When it is implemented, being completed first in the two sides of stress steel plate 21 fastening installation decorative layer 22 and filter layer 23
After the assembling of protective facing 2, punched using power auger in the corresponding position of slopes, so that soil nailing 1 is packed into hole correspondingly
In, it is finally mounted on assembled protective facing 2 is corresponding on soil nailing 1 again, and soil can be completed with the fastening of the first nut 14
The installation for following closely 1 wall can greatly enhance the stress of protective facing 2 by the setting of stress steel plate 21, while pass through filter layer 23
Being arranged can be such that the infiltration in slopes is discharged in time, avoid the ponding retention osmotic in soil, and decorative layer 22 can beautify
The surface of 1 wall of soil nailing, has the effect of greening environment.
In addition, antitorque section 13 and the first spiral shell that soil nailing 1 includes integrally formed drill bit 11 and tension section 12, is detachably connected
Mother 14, wherein, tension section 12 and antitorque section 13 are round table-like, and outside the rear end of the front end external diameter of tension section 12 to antitorque section 13
Diameter is gradually increased, resistance when design can reduce nailing in this way, and antitorque section 13 and tension section use detachable connection method,
For example, anti-clockwise thread connects, antitorque section 13 of different length, such as rock slopes can freely be selected to select according to slopes environment
Antitorque section 13 of 10cm length, sandy soil slopes select antitorque section 13 of 15cm length, increase soil nailing 1 in different slopes environment
Versatility.Moreover, setting rotation screw thread 123 can be further reduced the resistance of nailing in preceding tension section 121, in rear tension
Setting hangnail 124 can be improved its dynamics for grabbing soil in section 122, and then increase the fastness that soil nailing 1 is embedded in slopes.
Not only in this, it can realize that the secondary recovery of protective facing 2 utilizes by dismantling the first nut 14, be compared to tradition
Concrete structure, the soil nailed wall retaining structure provided in this embodiment suitable for powder land floor slope foundation pit also has energy-saving ring
The characteristics of guarantor, convenient for the popularization and application of large area.
For the ease of the installation of protective facing 2, referring to Fig. 5, being offered on stress steel plate 21 in above-described embodiment solid
Determine hole, soil nailing 1 passes through fixation hole and slopes through fixation.Be also provided with multiple mounting holes on stress steel plate 21, and with installation
The bolt 41 and the second nut 42 that hole is used cooperatively.
When it is implemented, decorative layer 22 is mounted on side of the stress steel plate 21 far from slopes, filter layer 23 is mounted on stress
Steel plate 21 successively penetrates filter layer 23, mounting hole and decorative layer 22 close to the side of slopes, by bolt 41, and uses the second nut
The assembling of protective facing 2 is completed in 42 fastenings;By the setting of mounting hole, bolt 41 and the second nut 42, can be further ensured that
The stability of protective facing 2.
Preferably, referring to Fig. 1, being additionally provided with flexible protective rope 3, the end of flexible protective rope 3 between adjacent second nut 42
Head is fixed by connecting hole 44.By connecting flexible protective rope 3 between adjacent second nut 42, on the one hand has and be adjacent to decoration
On the other hand the effect of layer 22, filter layer 23 and slopes also has and dredges pressure of the slopes falling rocks on protective facing 2 to soft
On property protective rope 3, then the pressure on flexible protective rope 3 is decomposed to the effect on the second nut 42 being attached thereto, ensure that
The fastness of soil nail wall.
In addition, please referring to Fig. 2 and Fig. 4, it is additionally provided with gasket ring 43 between the second nut 42 and decorative layer 22, is opened up on gasket ring 43
Multiple connecting holes 44.Since the cross-sectional area of gasket ring 43 is much larger than the cross-sectional area of the second nut 42, second can be shared
Forced area of the nut 42 on protective facing 2, being capable of preferable fixed protection surface layer 2;And multiple companies are opened up on gasket ring 43
Hole 44 is connect, the dismantling connection of flexible protective rope 3 Yu soil nailing 1 is facilitated.Illustratively, opened up on each gasket ring 43 4 it is coaxial right
The connecting hole 44 of title, using current 43 position of gasket ring as basic point, using 4 flexible protective ropes 3 respectively by adjacent thereto 4
Gasket ring 43 and 4 connecting holes 44 of current gasket ring 43 are correspondingly connected with, and setting can be in the upper surface shape of decorative layer 22 in this way
At a stress net, the fastness of soil nail wall ensure that.
Optionally, referring to Fig. 3, the thread groove of preceding tension section 121 is equipped with multiple perforative through-holes 125.By
Multiple perforative through-holes 125 are set on conduit, enable preceding tension section 121 even closer in conjunction with the soil in slopes,
To improve fastness fixed between soil nailing 1 and slopes.
It is understood that the selection of tension section 12 is varied, such as steel construction, steel structure or alloy structure, but
It is based on the considerations of the preferred PVC material of tension section in cost and corrosion resistance, this implementation.
You need to add is that also setting multiple reinforcing rib (not shown)s for being used for fixed function on protective facing 2, add
It is welded respectively with the end of adjacent first nut 14 at the both ends of strengthening tendons.It can be improved adjacent soil nailing 1 by the setting of reinforcing rib
Stress intensity, and then the whole fastness for improving soil nail wall.
Preferably, referring to Fig. 5, decorative layer 22 and filter layer 23 are opened with mounting hole and fixation hole corresponding position respectively
Equipped with through hole, lantern ring is embedded on through hole.During protective facing 2 are installed, protective facing 2 is worn without scene
Thorn punching, can be avoided the damage of protective facing 2 in this way, protective facing 2 is secondary use.When protective facing 2 with
When soil nailing 1 installs, antitorque section 13 of soil nailing 1 through in protective facing 2.
Illustratively, nettle of the decorative layer 22 including decorative plastic lawn and for carry decorative plastic lawn is basic,
Filter layer 23 is permeable geotextile layer.Decorative layer 22 has the surface of beautification soil nail wall, the effect of greening environment.
In the description of above embodiment, particular features, structures, materials, or characteristics can be at any one or more
It can be combined in any suitable manner in a embodiment or example.
The above, the only specific embodiment of the present embodiment, but the protection scope of the present embodiment is not limited thereto,
Anyone skilled in the art can easily think of the change or the replacement in the technical scope that the present embodiment discloses,
It should all cover within the protection scope of the present embodiment.Therefore, the protection scope of the present embodiment should be with the guarantor of the claim
It protects subject to range.