CN107724421A - A kind of retaining wall and its construction method - Google Patents
A kind of retaining wall and its construction method Download PDFInfo
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- CN107724421A CN107724421A CN201710852198.XA CN201710852198A CN107724421A CN 107724421 A CN107724421 A CN 107724421A CN 201710852198 A CN201710852198 A CN 201710852198A CN 107724421 A CN107724421 A CN 107724421A
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- wall
- water
- retaining
- retaining wall
- water hole
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
Abstract
The invention discloses a kind of retaining wall and its construction method, its drip irrigation device is to include wall, the preceding toe board being connected, rear heel slab are poured with wall, the wall includes upper wall, lower wall, the weight platform being arranged between wall and lower wall, side of the wall away from primitive soil is smooth inclined plane, the upper wall and lower wall are trapezoidal, the upper wall is set with lower wall close to the surface of primitive soil side in 120 ° ~ 150 ° angles, the wall is provided with guarded drainage facility, and side of the wall away from primitive soil, which is provided with, reinforces facility.Guarded drainage facility is provided between this retaining wall and primitive soil, being advantageous to the water between retaining wall and primitive soil can be discharged to outside wall, improve the stability of retaining wall；Retaining wall overall structure is stable, has certain intensity, is not susceptible to damage.
Description
Technical field
The present invention relates to field of civil engineering, more specifically, it relates to a kind of retaining wall and its construction method.
Background technology
Retaining wall refers to support Roadbed Soil or the hillside soil body, prevents from banketing or the structure of soil deformation unstability.Keeping off
In cob wall cross section, the position directly contacted with being supported by the soil body is referred to as the wall back of the body；Position that is relative, facing sky, which is carried on the back, with wall is referred to as wall
Face；It is referred to as substrate with the position that ground directly contacts；Relative with substrate, wall top surface is referred to as wall top；The front end of substrate is referred to as
Toe of wall；The rear end of substrate is referred to as wall heel.
Notification number be CN103410167A Chinese patent disclose a kind of three-dimensional reinforcement combination of rigidity and flexibility ecology retaining wall and
Construction method, it includes top flexible ecological retaining wall and bottom rigid retaining wall；By anchoring steel between the retaining wall of upper and lower part
Muscle connects；It is connected between each layer filler of top flexible ecological retaining wall by connection fastener；Bottom rigid retaining wall wall body
Be connected end and the oblique lacing wire of drainpipe, horizontal reinforcing body are uniformly provided with, the wall heel of earth-retaining foundation of wall extands rearward to surely
Determine soil body edge, its bottom is provided with vertical reinforcing pile；The horizontal reinforcing body of laying in filler after retaining walls；Toe of retaining wall
Before be backfilled with the foundation ballast soil body；Filler is vertically provided with vertical reinforced body with original soil body intersection after wall.
This three-dimensional reinforcement combination of rigidity and flexibility ecology retaining wall and construction method, although structure collection rigid retaining wall is kept off with flexible
The length of cob wall, can not only realize ecological revetment, and soil pressure, the globality of enhancing structure after wall can be reduced, have compared with
Good technical economic benefit, but when run into oozed under rainwater or the surface water when, had between retaining wall and primitive soil a certain amount of
Moisture, while retaining wall lacks guarded drainage facility, the situation for causing retaining wall to be damaged because of impeded drainage.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of retaining wall, earth-retaining the advantage is that
Guarded drainage facility is provided between wall and primitive soil.
To achieve the above object, the invention provides following technical scheme：A kind of retaining wall, including wall, pour with wall
The preceding toe board of connection, rear heel slab are built, the wall includes upper wall, lower wall, the weighing apparatus being arranged between wall and lower wall
Weight platform, side of the wall away from primitive soil is smooth inclined plane, and the upper wall and lower wall are trapezoidal, it is described on
Wall is set with lower wall close to the surface of primitive soil side in 120 ° ~ 150 ° angles, and the wall is provided with guarded drainage facility, institute
State side of the wall away from primitive soil and be provided with reinforcing facility.
By using above-mentioned technical proposal, preceding toe board and rear heel slab are that retaining wall provides stable ground, upper wall and
The weight platform being provided between lower wall improves the stability and bulk strength of retaining wall, reduces retaining wall stress and is damaged
Situation；Run into oozed under rainwater or the surface water when, guarded drainage facility can prevent water penetration to retaining wall and primitive soil it
Between, when there is water to enter between retaining wall and primitive soil, guarded drainage facility can also be effectively by water from retaining wall and original
Discharged between soil, reduce water overlong time between retaining wall and primitive soil, and caused by retaining wall there is weathering or corrosion
The situation of damage；There is individual lifting to the overall construction intensity of retaining wall by reinforcing facility simultaneously, advantageously ensure that retaining wall
Stability Analysis of Structures.
The present invention is further arranged to：Described guarded drainage facility includes being arranged on draining of the wall close to primitive soil side
Layer, it is arranged on the spilled water hole connected inside wall with drainage blanket, is located at water proof of the wall close to primitive soil side top and bottom
Layer, the water barrier are arranged on the both ends of drainage blanket vertical direction.
By using above-mentioned technical proposal, when water between wall and primitive soil be present, water is entered by drainage blanket and let out
In water hole, the function of draining is realized, while water barrier can effectively reduce the situation of ground sweat and ground end infiltration, so as to
Reach to reduce between wall and primitive soil and the probability of water occur.
The present invention is further arranged to：Described spilled water hole is arranged on the inside of lower wall, is arranged on the wall top
Water barrier and drainage blanket between using weight platform as boundary.
By using above-mentioned technical proposal, the water on ground can down be permeated under gravity, and spilled water hole is arranged on
The position of lower wall, be advantageous to drainage works, weight platform also functions to the work of certain exclusion of water while stable retaining wall is reached
With water barrier is arranged on the top of weight platform, reduces the situation that upper wall more than weight platform has ponding with primitive soil.
The present invention is further arranged to：Described water barrier is clay layer, and the drainage blanket is metalling.
By using above-mentioned technical proposal, clay permeability is very poor, belongs to the material of aquiclude, for infiltration coefficient
Clay layer that is small, having certain thickness and distribution continuous-stable, under general condition, because hole is tiny, is full of with reference to water, it is impossible to
Permeable and feedwater, can play a part of water barrier；Metalling is made up of some rubbles, and certain interval is had between rubble,
Water can pass through gap trickling and be discharged at spilled water hole outside wall.
The present invention is further arranged to：Described spilled water hole grows uniform straight line proper alignment along wall is high with wall, described to let out
Water hole is staggered in the vertical direction of wall, and the spacing between the adjacent spilled water hole is 2 ~ 3m, the spilled water hole set to
The bottom hole gradient of wall outer incline 3 ~ 5%.
By using above-mentioned technical proposal, the spilled water hole of uniform proper alignment, which is advantageous to water, quickly to be arranged out of wall
To the outside of wall, in order to reduce influence of the spilled water hole to retaining wall intensity, spilled water hole is staggered and spacing is larger, spilled water hole
There is certain gradient, spilled water hole wall is higher close to the position of primitive soil side, facilitates water to flow out wall under gravity.
The present invention is further arranged to：The described water barrier for being arranged on the wall bottom is positioned at minimum one excretion water hole
Lower section.
By using above-mentioned technical proposal, ensure that each spilled water hole can play a role, avoid water barrier barrier water from flowing into
Situation in spilled water hole.
The present invention is further arranged to：The entrance point of described spilled water hole is provided with loaded filter.
By using above-mentioned technical proposal, spilled water hole is during draining, because the flow velocity of water is slower, without very big
Impulsive force, while the thing of some sludge, impurity etc can be also carried in water, the feelings of sluicing hole plug can be caused after long-time
Condition, loaded filter have the function that to filter the water that will be flowed out from spilled water hole, reduce spilled water hole and situation about blocking occur.
The present invention is further arranged to：Described reinforcing facility include be arranged on counterfort of the wall away from primitive soil side,
Anchor pole inside wall and insertion primitive soil, length direction of the counterfort along wall are uniformly set, and the anchor pole exists
Uniform arrangement is set on wall.
By using above-mentioned technical proposal, retaining wall can be played support to wall by the pressure of primitive soil transmission, counterfort
Effect, enhance the rigidity of wall, reduce wall stress and situation about collapsing occur；After the enhancing of the intensity of wall, wall exists
In the case of being under pressure, in fact it could happen that the situation of integral incline, can effectively strengthen wall relative to original by anchor pole
The stability of soil layer, reduce wall stress and crooked situation occur.
The present invention is further arranged to：Steel pad is provided between the described surface of anchor pole and wall away from primitive soil side
Piece.
By using above-mentioned technical proposal, anchor pole is inserted into the inside of primitive soil after wall, and anchor pole contradicts with wall
Part have certain pressure, because the conflict area between anchor pole and wall is smaller, wall and anchor after some time
The situation of cracking damage occurs in the part that bar contradicts, and so as to influence the integral rigidity of wall, steel plate washer can be advantageous to increase
Conflict area between anchor pole and wall, reduce wall and situation about damaging occur.
Another object of the present invention is to provide a kind of construction method of retaining wall, comprise the following steps：
Step 1: preparation of construction：
1.1st, the accurately roadbed center line at measure retaining walls location, basic main shaft, wall top axis, retaining wall start-stop before going into operation
Point and cross section；
1.2nd, when straight line path base segment and ground longitudinal slope, horizontal slope are without mutation, one should be set by 10--15 rice；Curve roadbed section should be by
5--10 rice sets one；In one section of wall section length, stake point quantity is more than or equal to one, and according to landform fluctuations, supplement
Densely covered pile point and cross section；
Step 2: retaining wall foundation construction：Construction including reinforcing facility；
Step 3: the construction of guarded drainage facility
Drainage sunk well should be first carried out when the 3.1st, constructing, the ejectment surface water in gutter is set, compacting earth's surface is loosened the soil, and reduces rainwater and ground
Ooze under water in face；
3.2nd, water barrier and drainage blanket are provided with；
3.3rd, spilled water hole is set along wall height and length direction, its spacing is 2-3 rice, and upper and lower interlaced arrangement should be simultaneously set to wall
The outer incline 3-5% bottom hole gradient, most next row spilled water hole should be higher by the practically upper thread 0.30m after construction, if immersion earth-retaining
Wall, ordinary water level above 0.30m should be located at；
3.4th, when wall back of the body filler be cohesive soil or moisture be not easy to penetrate into spilled water hole discharged to outside metope when, should exist by design requirement
Between filler and the wall back of the body, wall top surface is filled to the continuous drainage layer between most lower excretion water hole, top and bottom with seepage material
Water barrier need to be made with clay；
3.5th, when wall back of the body filler is seeps water native, to prevent from blocking, gravel should be set in spilled water hole water inlet end by design requirement
Loaded filter, and water barrier is set in the lower end of most next row spilled water hole, prevent moisture from penetrating into basis；
3.6th, guarded drainage facility synchronous with wall construction should be carried out, and be completed simultaneously；
Step 4: the construction at subsiding crack and expansion joint
4.1st, when retaining wall is constructed, according to the section length of design drawing, combining wall location actual landform, the hydrology, geology change feelings
Condition, subsiding crack and expansion joint are set, subsiding crack and expansion joint, which exist, to be separated with merging the two ways set；
4.2nd, subsiding crack, the slit width at expansion joint, answer neat and consistent, up/down perforation；
4.3rd, subsiding crack, the slit width at expansion joint, it is 20-30mm, along the inside and outside of wall, top three sided slit, with Bituminous hemp fiber, applies
With the flexible material filling such as the template of pitch or particieboard, plastic foam, substrate is accomplished always from wall top, inserts depth
More than or equal to 15cm；
4.4th, horizontal reinforcement should block at subsiding crack or expansion joint, and seam crossing has a two ways, respectively groove and tognue type, front and rear
Metope notch type；
Step 5: the construction of wall back of the body backfill
5.1st, after the strength of wall body rank of retaining wall should reach more than the 75% of design strength, wall back of the body filler construction is carried out；
5.2nd, after wall in the range of 1.5m, big machinery traveling or operation is reduced, to prevent from breaking wall, small-sized compacting machine should be used
Tool rolls, and lift height is less than or equal to 20cm.
By using above-mentioned technical proposal, stable build retaining wall is completed, when carrying out the construction of guarded drainage facility,
Need to ensure anti-, two processes of draining while carry out, advantageously ensure that the stability that guarded drainage is constructed, while entirely constructing
During consider the stake that each factor is brought, improve the stability of retaining wall.
In summary, the invention has the advantages that：
1st, guarded drainage facility is provided between retaining wall and primitive soil, wall can be discharged to by being advantageous to the water between retaining wall and primitive soil
Outside body, the stability of retaining wall is improved；
2nd, retaining wall overall structure is stable, has certain intensity, is not susceptible to damage.
Brief description of the drawings
Fig. 1 is the structural representation for showing guarded drainage facility inside retaining wall；
Fig. 2 is to show the structural representation that spilled water hole is distributed on wall；
Fig. 3 is the structural representation for showing retaining wall internal reinforcement facility；
Fig. 4 is to show subsiding crack and the structural representation at expansion joint.
Reference：1st, wall；11st, upper wall；12nd, lower wall；13rd, weight platform；2nd, preceding toe board；3rd, rear heel slab；4th, prevent
Pumping equipment；41st, drainage blanket；42nd, spilled water hole；421st, loaded filter；43rd, water barrier；5th, facility is reinforced；51st, counterfort；52nd, anchor pole；
6th, steel plate washer；7th, subsiding crack；8th, expansion joint.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment one：A kind of retaining wall, as shown in figure 1, including wall 1, pouring preceding toe board 2, the heel curre being connected with wall 1
Plate 3, preceding toe board 2 provide stable ground for retaining wall with rear heel slab 3.Wall 1 includes upper wall 11, lower wall 12, set
Weight platform 13 between upper wall 11 and lower wall 12, the weight platform 13 being provided between upper wall 11 and lower wall 12 improve
The stability and bulk strength of retaining wall, reduce the situation that retaining wall stress is damaged.Side of the wall 1 away from primitive soil
For smooth inclined plane, the structure of a similar triangle is formed between inclined plane and primitive soil, is advantageous to the structure of retaining wall
It is stable.
As shown in figure 1, upper wall 11 and lower wall 12 are trapezoidal, upper wall 11 is with lower wall 12 close to primitive soil side
Surface set in 120 ° ~ 150 ° angles, the upper wall 11 of angled setting and lower wall 12, increase wall 1 and primitive soil it
Between contact area, while the thickness degree that the structure of upper wall 11 and lower wall 12 also causes wall 1 whole changes, and keeps away
Exempt from that whole wall 1 is all the situation of same thickness, so as to be advantageous to strengthen the intensity of wall 1, is also beneficial to earth-retaining
The integrally-built stability of wall.
As shown in figure 1, when run into oozed under rainwater or the surface water when, had between wall 1 and primitive soil moisture presence,
Moisture can influence the integrally-built stabilization of retaining wall；In order to effectively improve the Stability Analysis of Structures of retaining wall, reduce moisture to gear
The influence of cob wall, is provided with guarded drainage facility 4 on wall 1, and guarded drainage facility 4 can prevent water penetration to retaining wall and primitive soil
Between；When there is water to enter between retaining wall and primitive soil, guarded drainage facility 4 can also be effectively by water from retaining wall and original
Begin to draw between soil, reduce because water overlong time between retaining wall and primitive soil, and caused by retaining wall occur weathering or
The situation of person's corrosion and damage.
As shown in figure 1, guarded drainage facility 4 include be arranged on wall 1 close to primitive soil side drainage blanket 41, be arranged on wall
Spilled water hole 42 that the inside of body 1 connects with drainage blanket 41, water barrier 43 of the wall 1 close to primitive soil side top and bottom is located at,
Water barrier 43 is arranged on the both ends of the vertical direction of drainage blanket 41, and water barrier 43 is clay layer, and drainage blanket 41 is metalling.
As shown in figure 1, because clay permeability is very poor, belong to the material of aquiclude, infiltration coefficient is small, has certain thickness
And the clay layer of distribution continuous-stable, under general condition, because hole is tiny, it is full of with reference to water, it is impossible to it is permeable with feeding water, can
To play a part of water barrier 43, the water in water and ground end in earth's surface, under the stop of water barrier 43, reduce and enter wall
Probability and water between body 1 and primitive soil.
As shown in figure 1, still running into the situation of heavy rain or underground dilutional hyponatremia, inevitably there can be water to enter wall
Between body 1 and primitive soil, now just needing to carry out quick drainage works, water is entered in spilled water hole 42 by drainage blanket 41,
The outside of wall 1 is discharged into by spilled water hole 42, realizes the function of draining, is advantageous to the stabilization between wall 1 and primitive soil
Property.
As illustrated in fig. 1 and 2, in order to ensure the unobstructed of draining, spilled water hole 42 is provided with several, and spilled water hole 42 is along wall
The uniform straight line proper alignment of height and length direction of body 1, the speed of draining can be effectively improved by multiple spilled water holes 42
Degree, so as to be advantageous to the discharge of moisture between wall 1 and primitive soil.
As shown in figure 1, in order to further improve the speed of draining and patency, spilled water hole 42 is generally located on lower wall
The inside of body 12, it is arranged between the water barrier 43 and drainage blanket 41 on the top of wall 1 with weight platform 13 as boundary；It is arranged on wall
The water barrier 43 of 1 bottom is positioned at the lower section in minimum one excretion water hole 42, and spilled water hole 42 sets the hole to wall outer incline 3 ~ 5%
Bottom sloping.
As shown in figure 1, the water on ground can down permeate under gravity, because being provided with the top of weight platform 13
Water barrier 43, water are had no idea to pass through water barrier 43, can only continue down to permeate under gravity, when penetrating into lower wall
During the position at 12 places, water can be entered in spilled water hole 42 from drainage blanket 41 and discharged to outside wall 1, be advantageous to drainage works；Weighing apparatus
Weight platform 13 also functions to the effect of certain exclusion of water, water barrier 43 is arranged on weight platform 13 while stable retaining wall is reached
Top, also reaches the upper wall 11 for reducing weight platform more than 13 and primitive soil has the situation of ponding.
As shown in figure 1, when seepage in underground, because there is water barrier 43 bottom of wall 1, water has no idea to penetrate into wall
At body 1, after the time has been grown, underground water oneself may permeate discharge, furthermore underground water may also be cumulative, has little time
Discharge, now underground water will be permeated to the top of primitive soil, when the position where penetrating into lower wall 12, water can be from row
Water layer 41 is entered in spilled water hole 42 and discharged to outside wall 1.
As shown in figure 1, water barrier 43 is arranged on above and below spilled water hole 42, it can effectively avoid water barrier 43 right
The influence of the drainage works of wall 1, improve the operating efficiency of draining.When drainage works are realized, water is mainly spilled water hole 42
Effect by gravity is flowed out out of spilled water hole 42, the bottom hole gradient of the spilled water hole 42 to wall outer incline 3 ~ 5% so that the wall of spilled water hole 42
Body 1 is higher close to the position of primitive soil side, facilitates water to flow out wall 1 under gravity, so as to also improve draining
Operating efficiency.
As shown in figure 1, spilled water hole 42 is during draining, because the flow velocity of water is slower, without very big impulsive force, together
Shi Shuizhong can also carry the thing of some sludge, impurity etc, although the drainage blanket 41 being made up of metalling can rise to moisture
To certain filtration, but the situation that can still cause spilled water hole 42 to block after long-time；In order to reduce spilled water hole 42
There is situation about blocking, loaded filter 421 is provided with the entrance point of spilled water hole 42, by loaded filter 421 to will be from spilled water hole 42
The water of outflow is filtered, and reduces caused impurity in the sluicing course of work, reaches reduction spilled water hole 42 and situation about blocking occurs.
As illustrated in fig. 1 and 2, spilled water hole 42 is after solving the drainage works between wall 1 and primitive soil, also to whole
The structure of wall 1 brings destruction, and to improve the overall structure stability of wall 1, spilled water hole 42 interlocks in the vertical direction of wall 1
Set, and the spacing between adjacent spilled water hole 42 is 2 ~ 3m, and spilled water hole 42 is staggered and spacing is larger, avoids spilled water hole
42 dense arrangements cause the intensity decreases of whole wall 1, the favourable influence reduced to the intensity of wall 1.
Facility 5 is reinforced as shown in figure 3, being provided with side of the wall 1 away from primitive soil, by reinforcing facility 5 to retaining wall
Overall construction intensity have individual lifting, advantageously ensure that the Stability Analysis of Structures of retaining wall.It is remote including being arranged on wall 1 to reinforce facility 5
Counterfort 51 from primitive soil side, the anchor pole 52 inside wall 1 and insertion primitive soil, length side of the counterfort 51 along wall 1
Being set to uniform, the uniform arrangement on wall 1 of anchor pole 52 is set, while in anchor pole 52 and wall 1 away from primitive soil side
Surface between be provided with steel plate washer 6.
As shown in figure 3, retaining wall can be played a part of support by the pressure of primitive soil transmission, counterfort 51 to wall 1, increase
The strong rigidity of wall 1, reduces the stress of wall 1 and situation about collapsing occurs；After the enhancing of the intensity of wall 1, wall 1 is being pressed
In the case of power, in fact it could happen that the situation of integral incline, can effectively strengthen wall 1 relative to original soil layer by anchor pole 52
Stability, reduce wall 1 stress and crooked situation occur.Anchor pole 52 is inserted into the inside of primitive soil, anchor pole after wall 1
52 parts contradicted with wall 1 have certain pressure, because the conflict area between anchor pole 52 and wall 1 is smaller, certain
After time, existing extruding force between wall 1 and anchor pole 52, cause the part that wall 1 contradicts with anchor pole 52 that cracking occurs
The situation of damage, so as to influence the integral rigidity of wall 1, steel plate washer 6 can be advantageous to increase supporting between anchor pole 52 and wall 1
Contacting surface is accumulated, and reduces wall 1 and situation about damaging occurs.
Embodiment two：A kind of construction method of retaining wall, with reference to the structure shown in 1 to 4, comprise the following steps：
Step 1: preparation of construction：To job site carry out a preliminary shaping work, confirm set retaining wall position with
And basic setting work.
1.1st, roadbed center line, basic main shaft, wall top axis, the retaining wall at retaining walls location are accurately determined before going into operation
Terminal and cross section；
1.2nd, when straight line path base segment and ground longitudinal slope, horizontal slope are without mutation, one should be set by 10--15 rice；Curve roadbed section should be by
5--10 rice sets one；In one section of section length of wall 1, stake point quantity is more than or equal to one, and according to landform fluctuations, increases
Mend densely covered pile point and cross section.
Step 2: retaining wall foundation construction：Carried out pouring work according to design drawing and technological requirement, including reinforce facility
55 construction；Supported according to standard and the data of design, corresponding foundation construction is completed, so as to ensure that subsequent construction step can
With stable progress.
Step 3: the construction of guarded drainage facility 4
Drainage sunk well should be first carried out when the 3.1st, constructing, the ejectment surface water in gutter is set, compacting earth's surface is loosened the soil, and reduces rainwater and ground
Ooze under water in face；
3.2nd, water barrier 43 and drainage blanket 41 are provided with；
3.3rd, along wall 1 is high and length direction sets spilled water hole 42, its spacing is 2-3 rice, upper and lower interlaced arrangement and should set to
The outer incline 3-5% of the wall 1 bottom hole gradient, most next row spilled water hole 42 should be higher by the practically upper thread 0.30m after construction, if
Soak retaining wall, should be located at ordinary water level above 0.30m；
3.4th, when wall 1 carry on the back filler be cohesive soil or moisture be not easy to penetrate into spilled water hole 42 discharged to outside metope when, should will by design
Ask between filler and the wall back of the body, the top surface of wall 1 is filled to the continuous drainage layer 41 between most lower excretion water hole 42, top with seepage material
End need to make water barrier 43 with bottom with clay；
3.5th, when wall 1 carries on the back filler to seep water native, to prevent from blocking, sand should be set in the water inlet end of spilled water hole 42 by design requirement
Gravel loaded filter 421, and water barrier 43 is set in the lower end of most next row spilled water hole 42, prevent moisture from penetrating into basis；
3.6th, guarded drainage facility 4 should construct synchronous progress with wall 1, complete simultaneously.
Step 4: subsiding crack 7 and the construction at expansion joint 8
4.1st, when retaining wall is constructed, according to the section length of design drawing, combining wall location actual landform, the hydrology, geology change feelings
Condition, subsiding crack 7 and expansion joint 8 are set, subsiding crack 7 and expansion joint 8, which exist, to be separated with merging the two ways set；
4.2nd, subsiding crack 7, the slit width at expansion joint 8, answer neat and consistent, up/down perforation；
4.3rd, subsiding crack 7, the slit width at expansion joint 8, be 20-30mm, along wall 1 it is inside and outside, top three sided slit along, with Bituminous hemp fiber,
The flexible material filling such as the template or particieboard of pitch, plastic foam, accomplishes substrate from wall top, inserts depth always
Degree is more than or equal to 15cm；
4.4th, horizontal reinforcement should block at subsiding crack 7 or expansion joint 8, and seam crossing has a two ways, respectively groove and tognue type, preceding
Metope notch type afterwards.
Step 5: the construction of wall back of the body backfill
5.1st, after the intensity rank of wall 1 of retaining wall should reach more than the 75% of design strength, wall back of the body filler construction is carried out；
5.2nd, after wall in the range of 1.5m, big machinery traveling or operation is reduced, to prevent from breaking wall 1, small-sized compacting should be used
Cal rolling, lift height are less than or equal to 20cm.
The construction procedure of above-mentioned retaining wall is completed afterwards, it is necessary to carry out an exploration inspection man to the wall 1 entirely completed
Make, some factors that clear surrounding may damage to the retaining wall being just molded, and according to maintenance rules, retaining wall is entered
The maintenance monitoring of row timing, so as to improve the stability of retaining wall.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Claims (10)
1. a kind of retaining wall, including wall（1）With wall（1）Pour the preceding toe board of connection（2）, rear heel slab（3）, it is characterized in that：
The wall（1）Including upper wall（11）, lower wall（12）, be arranged on wall（11）With lower wall（12）Between weight platform
（13）, the wall（1）Side away from primitive soil is smooth inclined plane, the upper wall（11）With lower wall（12）It is in
It is trapezoidal, the upper wall（11）With lower wall（12）Set close to the surface of primitive soil side in 120 ° ~ 150 ° angles, the wall
（1）It is provided with guarded drainage facility（4）, the wall（1）Side away from primitive soil, which is provided with, reinforces facility（5）.
2. a kind of retaining wall according to claim 1, it is characterized in that：The guarded drainage facility（4）Including being arranged on wall
（1）Drainage blanket close to primitive soil side（41）, be arranged on wall（1）Internal and drainage blanket（41）The spilled water hole of connection（42）、
It is located at wall（1）Water barrier close to primitive soil side top and bottom（43）, the water barrier（43）It is arranged on drainage blanket
（41）The both ends of vertical direction.
3. a kind of retaining wall according to claim 2, it is characterized in that：The spilled water hole（42）It is arranged on lower wall（12）'s
Inside, it is arranged on the wall（1）The water barrier on top（43）With drainage blanket（41）Between with weight platform（13）For boundary.
4. a kind of retaining wall according to claim 3, it is characterized in that：The water barrier（43）For clay layer, the draining
Layer（41）For metalling.
5. a kind of retaining wall according to claim 4, it is characterized in that：The spilled water hole（42）It is high uniform with wall length along wall
Straight line proper alignment, the spilled water hole（42）In wall（1）Vertical direction be staggered, the adjacent spilled water hole（42）Between
Spacing be 2 ~ 3m, the spilled water hole（42）Set to wall（1）The bottom hole gradient of outer incline 3 ~ 5%.
6. a kind of retaining wall according to claim 5, it is characterized in that：It is arranged on the wall（1）The water barrier of bottom
（43）Positioned at minimum one excretion water hole（42）Lower section.
7. a kind of retaining wall according to claim 6, it is characterized in that：The spilled water hole（42）Entrance point be provided with loaded filter
（421）.
8. a kind of retaining wall according to claim 1, it is characterized in that：The reinforcing facility（5）Including being arranged on wall（1）
Counterfort away from primitive soil side（51）, through wall（1）And the anchor pole inside insertion primitive soil（52）, the counterfort（51）Edge
Wall（1）Length direction uniformly set, the anchor pole（52）In wall（1）Upper uniform arrangement is set.
9. a kind of retaining wall according to claim 8, it is characterized in that：The anchor pole（52）With wall（1）Away from primitive soil
Steel plate washer is provided between the surface of side（6）.
A kind of 10. construction method of retaining wall, it is characterized in that comprising the following steps：
Step 1: preparation of construction：
1.1st, the accurately roadbed center line at measure retaining walls location, basic main shaft, wall top axis, retaining wall start-stop before going into operation
Point and cross section；
1.2nd, when straight line path base segment and ground longitudinal slope, horizontal slope are without mutation, one should be set by 10--15 rice；Curve roadbed section should be by
5--10 rice sets one；In one section of wall section length, stake point quantity is more than or equal to one, and according to landform fluctuations, supplement
Densely covered pile point and cross section；
Step 2: retaining wall foundation construction：Including reinforcing facility（5）Construction；
Step 3: guarded drainage facility（4）Construction
Drainage sunk well should be first carried out when the 3.1st, constructing, the ejectment surface water in gutter is set, compacting earth's surface is loosened the soil, and reduces rainwater and ground
Ooze under water in face；
3.2nd, by water barrier（43）And drainage blanket（41）It is provided with；
3.3rd, along wall（1）High and length direction sets spilled water hole（42）, its spacing is 2-3 rice, and upper and lower interlaced arrangement should simultaneously be set
Put to wall（1）The outer incline 3-5% bottom hole gradient, most next row spilled water hole（42）The practically upper thread that should be higher by after construction
0.30m, if immersion retaining wall, ordinary water level above 0.30m should be located at；
3.4th, wall is worked as（1）Back of the body filler is that cohesive soil or moisture are not easy to penetrate into spilled water hole（42）, should be by setting when being discharged to outside metope
Meter requires that between filler and the wall back of the body, wall is filled with seepage material（1）Top surface is to most descending excretion water hole（42）Between continuous row
Water layer（41）, top need to make water barrier with bottom with clay（43）；
3.5th, wall is worked as（1）, should be by design requirement in spilled water hole to prevent from blocking when carrying on the back filler to seep water native（42）Water inlet end is set
Put gravel loaded filter（421）, and in most next row spilled water hole（42）Lower end set water barrier（43）, prevent moisture from penetrating into base
Plinth；
3.6th, guarded drainage facility（4）Should be with wall（1）Construction is synchronous to be carried out, and is completed simultaneously；
Step 4: subsiding crack（7）With expansion joint（8）Construction
4.1st, when retaining wall is constructed, according to the section length of design drawing, combining wall location actual landform, the hydrology, geology change feelings
Condition, subsiding crack is set（7）And expansion joint（8）, subsiding crack（7）And expansion joint（8）In the presence of the two ways separated with merging setting；
4.2nd, subsiding crack（7）, expansion joint（8）Slit width, answer neat and consistent, up/down perforation；
4.3rd, subsiding crack（7）, expansion joint（8）Slit width, be 20-30mm, along wall it is inside and outside, top three sided slit along, with pitch fiber crops
The flexible material filling such as silk, the template of pitch or particieboard, plastic foam, accomplishes substrate from wall top, fills out always
Enter depth and be more than or equal to 15cm；
4.4th, in subsiding crack（7）Or expansion joint（8）Place's horizontal reinforcement should block, and seam crossing has two ways, respectively tongue and groove
Formula, front and rear metope notch type；
Step 5: the construction of wall back of the body backfill
5.1st, the wall of retaining wall（1）After intensity rank should reach more than the 75% of design strength, wall back of the body filler construction is carried out；
5.2nd, after wall in the range of 1.5m, big machinery traveling or operation are reduced, to prevent from breaking wall（1）, small-sized pressure should be used
Real cal rolling, lift height are less than or equal to 20cm.
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| CN205776336U (en) * | 2016-06-02 | 2016-12-07 | 中交第二航务工程勘察设计院有限公司 | Base plate balance weight retaining wall structure |
| CN205776273U (en) * | 2016-06-14 | 2016-12-07 | 兰州理工大学 | Tall earth fill balance weight retaining wall and prestress anchorage cable combined support structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2350133B (en) * | 1999-05-14 | 2003-03-26 | Douglas John Ayres | Maintainable drain |
| CN103669398A (en) * | 2013-12-26 | 2014-03-26 | 中国水电顾问集团中南勘测设计研究院有限公司 | Integrated type road cutting retaining wall |
| CN204811233U (en) * | 2015-08-21 | 2015-12-02 | 中机中联工程有限公司 | Concrete retaining wall outlet afforestation structure |
| CN105104002A (en) * | 2015-08-21 | 2015-12-02 | 中机中联工程有限公司 | Concrete retaining wall drainage hole greening structure and method |
| CN205776336U (en) * | 2016-06-02 | 2016-12-07 | 中交第二航务工程勘察设计院有限公司 | Base plate balance weight retaining wall structure |
| CN205776273U (en) * | 2016-06-14 | 2016-12-07 | 兰州理工大学 | Tall earth fill balance weight retaining wall and prestress anchorage cable combined support structure |
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Address after: 214000 Room 608, building B, No. 35, Changjiang South Road, Wuxi City, Jiangsu Province Applicant after: Wuxi Traffic Construction Engineering Group Co., Ltd. Address before: No. 805 Jianghai West Road, Wuxi, Jiangsu Province Applicant before: Wuxi Traffic Engineering Co., Ltd. |
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Application publication date: 20180223 |