CN110344439A - A kind of construction method of rear-mounted retaining wall drain hole - Google Patents

A kind of construction method of rear-mounted retaining wall drain hole Download PDF

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Publication number
CN110344439A
CN110344439A CN201910692460.8A CN201910692460A CN110344439A CN 110344439 A CN110344439 A CN 110344439A CN 201910692460 A CN201910692460 A CN 201910692460A CN 110344439 A CN110344439 A CN 110344439A
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CN
China
Prior art keywords
retaining
brick
drain hole
tapping pipe
construction
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Granted
Application number
CN201910692460.8A
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Chinese (zh)
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CN110344439B (en
Inventor
宋鑫
李果
覃川
黎罗
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China Construction Fifth Bureau Third Construction Co Ltd
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China Construction Fifth Bureau Third Construction Co Ltd
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Priority to CN201910692460.8A priority Critical patent/CN110344439B/en
Publication of CN110344439A publication Critical patent/CN110344439A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • E02D29/0258Retaining or protecting walls characterised by constructional features
    • E02D29/0275Retaining or protecting walls characterised by constructional features cast in situ
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/10Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0007Production methods using a mold
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0023Cast, i.e. in situ or in a mold or other formwork

Abstract

A kind of construction method of rear-mounted retaining wall drain hole, including wall drainage pipeline, loaded filter two parts composition.By in retaining wall structure construction stage service sleeve, installation tapping pipe and anti-filter packet are instead excavated after first banketing, the first big face face brick of paving retaining wall, the methods of face brick can be realized retaining wall formwork reinforcement conveniently at paving drain hole afterwards, it is high-efficient that platform carries on the back backfilling of earthwork, tapping pipe is not susceptible to breakage, while can ensure that tapping pipe is accurately positioned, it is ensured that face brick paving is beautiful.

Description

A kind of construction method of rear-mounted retaining wall drain hole
Technical field
The present invention relates to a kind of construction methods of rear-mounted retaining wall drain hole.
Background technique
Currently, traditional retaining wall tapping pipe is buried in retaining wall structure work progress, in retaining wall two sides Each one segment length of reserved place.The tapping pipe of stretching is wrapped up using anti-filter packet in backfilling of earthwork side.This building method is deposited In following several drawbacks: (1) since tapping pipe stretches out retaining wall, needing the aperture on two side templates, tapping pipe stretches out template, really It is straight to protect wall template, causes formwork reinforcement inconvenient in this way, construction efficiency is lower, and is easy to lead in formwork reinforcement and demolishing process Cause tapping pipe damaged;(2) pre-main phase buries tapping pipe and is unable to ensure accurate positioning, influences decoration stage wall tapestry brick row Version effect;(3) since tapping pipe stretches out wall, in the backfilling of earthwork stage, it is closely knit to need to carry out manually to backfill ramming one by one, a side Face rings backfill efficiency, is on the other hand easy to cause tapping pipe damaged.
Summary of the invention
The present invention proposes that a kind of retaining wall formwork reinforcement is convenient, backfilling of earthwork is high-efficient, lets out in view of the deficiencies of the prior art The construction party for the rear-mounted retaining wall drain hole that water pipe breakage rate is low, ensures tapping pipe accurate positioning, ensures face brick paving beauty Method.
The purpose of the present invention is achieved by using following technical proposals:
A kind of construction method of rear-mounted retaining wall drain hole, includes the following steps:
A, wall reinforcing bar is bound:
After the completion of retaining wall base concrete pours, retaining wall wall reinforcing bar is bound;
B, sleeve pipe pre-embedding:
The horizontal center line that drain hole is oriented on vertical reinforcement orients each drain hole on the basis of retaining wall Horizontal position is made marks on horizontal reinforcement by the vertical heart, by pre-buried casing both ends environmental sealing, is incited somebody to action using bar dowel Be fixed in framework of steel reinforcement to service sleeve according to mark position, it is pre-buried after casing do not stretch out the wall of retaining wall, to pre-buried The diameter of casing is bigger than the diameter of tapping pipe, and the length to service sleeve is consistent with sluicing length of tube;
C, installation standard push and block cob wall carries out formwork erection and concreting;
E, earth-retaining bench-table back is backfilled;
F, the earthwork is counter excavates:
The earthwork backfilled according to the position of pre-buried casing to retaining wall is counter to excavate, and the size of excavation meets burying for anti-filter packet If;
G, tapping pipe is embedded:
After the completion of anti-excavation, pre-buried casing both ends are opened, tapping pipe are inserted into service sleeve, using cement mortar Gap plug packing between casing and tapping pipe is real;
H, anti-filter packet is installed in the water inlet end of tapping pipe, then fills and leads up hole, finally according to engineering construction process It is required that carrying out retaining wall plastering, face brick, paving.
Further, in step b, progress retaining wall wall facade face brick typesetting first considers the position of retaining wall deformation joint It sets, carries out typesetting by unit of a standard paragraphs retaining wall, drain hole is located in the center of monolithic face brick, it is ensured that level mark High consistent, horizontal space is consistent, according to retaining wall wall facade face brick typesetting, vertical reinforcement and horizontal reinforcement position with to pre-buried When sleeve position conflicts, the vertical reinforcement of the position is disconnected, horizontal reinforcement is around avoiding.
Further, in step e, after retaining wall concrete strength reaches design value, using designing material to earth-retaining bench-table Back is backfilled, and when backfill, back-filling in layers compaction in layers is carried out using backhoe digging machine, bull-dozer, road roller cooperation, close to gear It is compacted within the scope of cob wall 2m using baby roller or artificial ramming, is suspended after being backfilled to service sleeve top top 50cm Backfill continues to backfill after the completion of tapping pipe is pre-buried.
Further, in step g, according to the position of the drain hole of retaining wall wall facade face brick typesetting positioning, then exist Tapping pipe installation positioning graticule is fixed on pre-buried by the horizontal center line and vertical centerline that design tapping pipe is marked on retaining wall In casing.
Further, in step h, side includes diameter not less than 20mm cobble or broken to the anti-filter packet from bottom to top Rock layers, the gravel or aggregate chips layer, 300-400g/ ㎡ geotextiles that diameter is 1~4mm.
Further, in step h, at drain hole before face brick paving, in-site measurement tapping pipe opposing perimeter face brick position, The drilling of face brick corresponding position scene, then the face brick that drilled is installed, pullover is finally installed at face brick hole.
Due to using upper method, the method have the advantages that:
(1) speed of application is very fast: in retaining wall main body construction stage service sleeve, it can be ensured that formwork erection is more effective Rate.Service sleeve, which does not stretch out wall, may insure backfilling of earthwork more efficiently.
(2) ensure retaining wall wall beautiful decoration: tapping pipe can do a certain range adjustment in casing, avoid directly existing The shear wall stage is buried after deviations occurs in drain hole and can not adjust, and wall face brick beautiful decoration is influenced.
(3) be conducive to finished product protection: tapping pipe embedded avoided tapping pipe breakage in work progress and caused using rear-mounted The problem that can not be repaired.
(4) shear wall formwork is reinforced convenient.
In conclusion the present invention is that one kind is able to achieve retaining wall formwork reinforcement conveniently, platform back backfilling of earthwork is high-efficient, sluices Pipe is not susceptible to breakage, while can ensure that construction and its construction method is accurately positioned in tapping pipe.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that present invention construction is completed.
In figure: 1, retaining wall, 2, anti-filter packet, 3, tapping pipe.
Specific embodiment
With reference to the accompanying drawing, it is described in detail the construction method of rear-mounted retaining wall drain hole a kind of.
Referring to Fig. 1, a kind of construction method of rear-mounted retaining wall drain hole, construction technology process: wall reinforcing bar is tied up Prick --- sleeve pipe pre-embedding --- formwork erection --- concreting --- retaining wall back filling behind abutment --- earthwork is counter to excavate --- Tapping pipe is embedded, and --- --- --- pullover is installed in plastering --- patch block --- to the installation of anti-filter packet for backfill
When construction, each section of retaining wall structure construction is carried out using " jumping storehouse method ", uses some strength foam in deformation joint Isolation of the plate from adjacent two earth-retainings foundation of wall to wall top.Steps are as follows for Specific construction:
1, wall reinforcing bar is bound
After the completion of retaining wall base concrete pours, double ground steel pipe scaffold is set up, is carried out according to construction drawing The binding of retaining wall wall reinforcing bar.
2, sleeve pipe pre-embedding
The face brick typesetting of wall facade is carried out first, retaining wall deformation joint position is comprehensively considered, with a standard paragraphs retaining wall Typesetting being carried out for unit, drain hole is located in the center of monolithic face brick, it is ensured that horizontal absolute altitude is consistent, and horizontal space is consistent, And it is substantially consistent with design size and absolute altitude.According to typesetting figure, the horizontal center line of drain hole is oriented on vertical reinforcement, The horizontal position that each drain hole is oriented on the basis of retaining wall is made marks on horizontal reinforcement by the vertical heart.Using covering Material wraps up service sleeve both ends, prevents concrete from flowing into.Service sleeve is carried out according to mark position by a left side using bar dowel The right side is fixed in framework of steel reinforcement.The casing diameter buried in wall reinforcing bar two models bigger than design tapping pipe, material is consistent, length With the service sleeve of shear wall.For the place that vertical reinforcement and horizontal reinforcement conflict with service sleeve, vertical reinforcement is disconnected, water Flat reinforcing bar is got around.
3, formwork erection
By taking plank sheathing as an example, then first shuttering and time stupefied wears sealing up screw, the flat double steel of backwater according to arrangement and method for construction spacing Pipe master is stupefied, and diagonal brace is arranged, and adjusts verticality and flatness.Enter next process after acceptance(check).
4, concreting
Concreting is carried out according to arrangement and method for construction.Ensure that concrete vibrating is closely knit in process of vibrating, especially earth-retaining Around the foot of a wall portion and service sleeve.
5, retaining wall back filling behind abutment
After retaining wall concrete strength reaches design value, earth-retaining bench-table back is backfilled using designing material.Using anti- Digging machine, bull-dozer are shoveled, road roller cooperation carries out back-filling in layers compaction in layers.Small-sized pressure road is used within the scope of retaining wall 2m again Machine or artificial ramming are compacted.The load of mechanical equipment is less than design load value.It is backfilled to service sleeve top top 50cm Pause backfill afterwards continues to backfill after the completion of tapping pipe is pre-buried.
6, the earthwork is counter excavates
It is excavated according to the position of service sleeve using the earthwork is counter after small-sized backacter and artificial progress retaining wall, hole Size meet the embedded of anti-filter packet.
7, tapping pipe is embedded
After the completion of anti-excavation, tapping pipe is inserted into service sleeve, the position of drain hole is positioned according to typesetting figure.First The horizontal center line and vertical centerline that design tapping pipe is marked on retaining wall, then according to graticule is positioned on wall, using water Cement mortar is real by the gap plug packing between casing and tapping pipe.Mortar strength is wrapped up anti-filter packet after reaching some strength and is backfilled Rubble compacting.
8, anti-filter packet is installed
The installation of anti-filter packet is carried out according to design requirement.Anti-filter packet is by 20mm cobble or rubble, 1-4mm sand from top to bottom Gravel or aggregate chips (clay content < 2%), 300-400g/ ㎡ geotextiles are constituted.
9, it backfills
It is backfilled using artificial ramming mode and is easier to closely knit material and fills and leads up hole, as rubble, cobble, medium coarse sand carry out Backfill, it is ensured that backfill is closely knit, and sluicing pipe portion is damaged.The big face backfill of retaining wall is carried out after the completion of backfill.
10, surface construction
Retaining wall plastering is carried out according to plastering engineering construction process requirement;After plastering is dry, according to typesetting figure and face brick Construction process requirement carries out face brick paving, at all drain holes face brick first reserve wouldn't paving, in-site measurement tapping pipe is relatively all It behind the face brick position of side, drills at face brick corresponding position scene, then the face brick that drilled is installed, finally installation set at face brick hole again Head.
Above-mentioned is the preferred embodiment of the present invention, but those skilled in the art should be understood that do not depart from it is appended In the spirit and scope of the present invention defined by claims, the various changes to made by the present invention in form and details Change, belongs to protection scope of the present invention.

Claims (6)

1. a kind of construction method of rear-mounted retaining wall drain hole, characterized by the following steps:
A, wall reinforcing bar is bound:
After the completion of retaining wall base concrete pours, retaining wall wall reinforcing bar is bound;
B, sleeve pipe pre-embedding:
The horizontal center line that drain hole is oriented on vertical reinforcement orients the level of each drain hole on the basis of retaining wall Position is made marks on horizontal reinforcement by the vertical heart, will be to pre- using bar dowel by pre-buried casing both ends environmental sealing Bushing burying is fixed in framework of steel reinforcement according to mark position, it is pre-buried after casing do not stretch out the wall of retaining wall, to service sleeve Diameter it is bigger than the diameter of tapping pipe, the length to service sleeve is consistent with sluicing length of tube;
C, installation standard push and block cob wall carries out formwork erection and concreting;
E, earth-retaining bench-table back is backfilled;
F, the earthwork is counter excavates:
The earthwork backfilled according to the position of pre-buried casing to retaining wall is counter to excavate, and the size of excavation meets the embedded of anti-filter packet;
G, tapping pipe is embedded:
After the completion of anti-excavation, pre-buried casing both ends are opened, tapping pipe is inserted into service sleeve, will be covered using cement mortar Gap plug packing between pipe and tapping pipe is real;
H, anti-filter packet is installed in the water inlet end of tapping pipe, then hole is filled and led up, is finally required according to engineering construction process Carry out retaining wall plastering, face brick, paving.
2. the construction method of rear-mounted retaining wall drain hole according to claim 1, it is characterised in that: in step b, first Carry out the face brick typesetting of retaining wall wall facade, consider retaining wall deformation joint position, using a standard paragraphs retaining wall as unit into Row typesetting, drain hole are located in the center of monolithic face brick, it is ensured that horizontal absolute altitude is consistent, and horizontal space is consistent, according to earth-retaining Wall wall facade face brick typesetting, when vertical reinforcement and horizontal reinforcement position when service sleeve position with conflicting, by the perpendicular of the position It is disconnected to reinforcing bar, horizontal reinforcement is around avoiding.
3. the construction method of rear-mounted retaining wall drain hole according to claim 1, it is characterised in that: in step e, earth-retaining After wall concrete strength reaches design value, earth-retaining bench-table back is backfilled using designing material, when backfill, is dug using backhoe Machine, bull-dozer, road roller cooperation carry out back-filling in layers compaction in layers, within the scope of the retaining wall 2m using baby roller or The artificial ramming of person is compacted, and is suspended backfill after being backfilled to service sleeve top top 50cm, is continued after the completion of tapping pipe is pre-buried Backfill.
4. the construction method of rear-mounted retaining wall drain hole according to claim 1, it is characterised in that: in step g, according to Then the position of the drain hole of retaining wall wall facade face brick typesetting positioning is marked on retaining wall in the level for designing tapping pipe Tapping pipe is installed positioning graticule and is fixed in service sleeve by heart line and vertical centerline.
5. the construction method of rear-mounted retaining wall drain hole according to claim 1, it is characterised in that: described in step h Side includes diameter not less than 20mm cobble or metalling, the gravel or aggregate chips that diameter is 1~4mm to anti-filter packet from bottom to top Layer, 300-400g/ ㎡ geotextiles.
6. the construction method of rear-mounted retaining wall drain hole according to claim 1, it is characterised in that: in step h, sluice At hole before face brick paving, in-site measurement tapping pipe opposing perimeter face brick position drills at face brick corresponding position scene, then installs Drilled face brick, and pullover is finally installed at face brick hole.
CN201910692460.8A 2019-07-30 2019-07-30 Construction method of rear retaining wall drain hole Active CN110344439B (en)

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Application Number Priority Date Filing Date Title
CN201910692460.8A CN110344439B (en) 2019-07-30 2019-07-30 Construction method of rear retaining wall drain hole

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Application Number Priority Date Filing Date Title
CN201910692460.8A CN110344439B (en) 2019-07-30 2019-07-30 Construction method of rear retaining wall drain hole

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CN110344439B CN110344439B (en) 2021-01-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111910679A (en) * 2020-08-12 2020-11-10 中建八局第二建设有限公司 Construction method of overlong and ultrahigh-weight retaining wall under complex terrain

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050097291A (en) * 2004-04-01 2005-10-07 주식회사 삼성산업 Method for constructing retaining wall
CN202559376U (en) * 2012-04-28 2012-11-28 浙江润业建设有限公司 Near-river municipal administration road structure below viaduct bridge
CN205776286U (en) * 2016-05-17 2016-12-07 中交第二航务工程勘察设计院有限公司 Retaining wall pumping equipment
CN205804401U (en) * 2016-06-28 2016-12-14 宇航交通建设集团有限公司 Retaining wall and the soil protection structure comprising this retaining wall
CN205917646U (en) * 2016-08-03 2017-02-01 宋斌 Hydraulic engineering is with having retaining wall device that anti - filter constructs
CN206829181U (en) * 2017-06-08 2018-01-02 中冶集团武汉勘察研究院有限公司 The retaining wall sluicing pore structure of replaceable cartridge
CN206859243U (en) * 2017-06-14 2018-01-09 魏尚卿 A kind of mortar flag stone retaining wall discharge structure
CN108316237A (en) * 2018-01-26 2018-07-24 南京珍珠泉园林建设有限公司 Revetment barricade
CN207775922U (en) * 2017-12-15 2018-08-28 中国建筑第八工程局有限公司 Drainpipe for retaining wall
CN110029655A (en) * 2019-04-22 2019-07-19 中国电建集团贵阳勘测设计研究院有限公司 A kind of cutting wall anti-filter discharge structure

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050097291A (en) * 2004-04-01 2005-10-07 주식회사 삼성산업 Method for constructing retaining wall
CN202559376U (en) * 2012-04-28 2012-11-28 浙江润业建设有限公司 Near-river municipal administration road structure below viaduct bridge
CN205776286U (en) * 2016-05-17 2016-12-07 中交第二航务工程勘察设计院有限公司 Retaining wall pumping equipment
CN205804401U (en) * 2016-06-28 2016-12-14 宇航交通建设集团有限公司 Retaining wall and the soil protection structure comprising this retaining wall
CN205917646U (en) * 2016-08-03 2017-02-01 宋斌 Hydraulic engineering is with having retaining wall device that anti - filter constructs
CN206829181U (en) * 2017-06-08 2018-01-02 中冶集团武汉勘察研究院有限公司 The retaining wall sluicing pore structure of replaceable cartridge
CN206859243U (en) * 2017-06-14 2018-01-09 魏尚卿 A kind of mortar flag stone retaining wall discharge structure
CN207775922U (en) * 2017-12-15 2018-08-28 中国建筑第八工程局有限公司 Drainpipe for retaining wall
CN108316237A (en) * 2018-01-26 2018-07-24 南京珍珠泉园林建设有限公司 Revetment barricade
CN110029655A (en) * 2019-04-22 2019-07-19 中国电建集团贵阳勘测设计研究院有限公司 A kind of cutting wall anti-filter discharge structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111910679A (en) * 2020-08-12 2020-11-10 中建八局第二建设有限公司 Construction method of overlong and ultrahigh-weight retaining wall under complex terrain

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