CN101418575A - L shaped retaining wall, construction method and detection method thereof - Google Patents
L shaped retaining wall, construction method and detection method thereof Download PDFInfo
- Publication number
- CN101418575A CN101418575A CNA200710018923XA CN200710018923A CN101418575A CN 101418575 A CN101418575 A CN 101418575A CN A200710018923X A CNA200710018923X A CN A200710018923XA CN 200710018923 A CN200710018923 A CN 200710018923A CN 101418575 A CN101418575 A CN 101418575A
- Authority
- CN
- China
- Prior art keywords
- retaining wall
- wall
- shaped retaining
- earth pressure
- backfill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention relates to the technical field of road construction engineering of a perenial frozen soil area, in particular to an 'L'-shaped retaining wall, a construction method and a test method thereof. The invention provides the 'L'-shaped retaining wall, the construction method and the test method thereof, which overcome the defects in the prior art. The 'L'-shaped retaining wall adopts the following technical proposal in order to overcome the detects in the prior art: the 'L'-shaped retaining wall comprises a rectangular pedestal, wherein a supporting wall is arranged on the upper part of the rectangular pedestal and is narrow on the upper part and wide on the lower part; one side face of the supporting wall is a vertical plane and the other side face of the supporting wall is an inclined plane; and the supporting wall is arranged inclined to one side of the rectangular pedestal. The construction method for the L'-shaped retaining wall comprises the following steps in turn: (a) preparatory treatment; (b) excavation; (c) lifting and backfilling; and (d) grading. The test method for the L'-shaped retaining wall is to arrange a plurality of earth pressure boxes on one side of the vertical plane, wherein the earth pressure boxes are overlapped from the top down in turn.
Description
Affiliated technical field:
The present invention relates to ever-frozen ground district road construction work technical field, be specifically related to a kind of " L " type retaining wall, job practices and method of testing thereof.
Background technology:
Retaining structure for the ever-frozen ground district, measured value shows: winter, seasonally thaw layer is freezed, water in soil freezing and expansion in the freezing process, freezing the soil body will be to retaining wall effect frost-heave force, this horizontal frost-heaving often than big several times even tens times of coulomb soil pressure, will damage retaining structure.If free wxpansion in the soil body freezing process perhaps unloads the part frost-heave force, will eliminate or reduce a suffered frost-heaving force of block material, play the effect of a protection block material.Therefore, the supporting construction characteristic in research ever-frozen ground district will be very important work.
At present, both at home and abroad in Permafrost Area thick-layer ground ice shed repair build a railway, generally all follow and fill out the principle of digging less more and pass through with the embankment form.Exist the construction trouble, the problem that cost is high.
Summary of the invention:
The present invention will provide a kind of " L " type retaining wall, job practices and use test method thereof, to overcome the construction trouble that prior art exists, the problem that cost is high.
For overcoming the problem that prior art exists, technical scheme of the present invention is: a kind of " L " type retaining wall, comprise rectangular base 2, be provided with knee wall 1 on the top of rectangular base 2, described knee wall 1 is up-narrow and down-wide, one of them side is a vertical plane, and another side is the inclined plane, a relatively side setting of rectangular base 2 of knee wall 1.
The job practices of above-mentioned L type retaining wall comprises the steps: successively
(a) preparation: comprise the prefabricated preparation of barricade and job site preparation two parts.Wherein prefabricated preparation is carried out in precast yard, and according to design drawing, concrete adopts label 25#, rolls reinforcing cage in advance, places the punching block cast.Before the on-the-spot formal construction, construction plant and natural vegetation on every side thereof be protected, the drainage works of construction plant should be carried out in advance.
(b) excavation: should adopt the mechanization rapid constructing method, concentrate strength on, finish rapidly.Its program comprises loosen the soil (together with the spoir channel part) and spoir two parts.
Be excavated to and change the stage of filling out, the ice sheet that reply exposes blocks protection as covering open night simple and easy daytime, melts influence to reduce heat.
(c) lifting backfill: after the clear side, the levelling unwrapping wire lifts the prefabricated barricade piece of L type again, has only a loop wheel machine, and every day, average approximately lifting was about 25.All after the lifting well, banket behind the beginning wall, changing bankets adopts the coarse granule gravel soil.Rammer is filled out in layering, and every 50cm one deck, road roller ram to be pressed, and after the tiling compacting, continues the rammer of filling out of one deck down.
The backfill operation should be noted: backfill is melted muddy water in proper order for from inside to outside, fill piecemeal from high to low so that outwards clear up the heat of next backfill section successively.
(d) whole slope: the bottom is a barricade, and bank protection is used on top instead, and ratio of slope is 1: 1.75, and the plastic foam plate capping has thermal insulation (can impel and melt deep attenuation) and prevents effect such as topsoil loss.
The method of testing of a kind of " L " type retaining wall is in vertical plane one side some earth pressure cells to be set, and described earth pressure cell stacks from top to bottom successively.
Above-mentioned earth pressure cell is the steel chord type earth pressure gauge.
" L " type retaining wall that the present invention proposes is from heavy and light, and simple in structure, it is light to construct, can precast assembly, can in the engineering construction in many special native distributed areas, embody its unique compliance.Consider the build-in attribute of ever-frozen ground frost heave thaw collapse,, utilize light-duty, the flexible characteristics of L type retaining structure, can play a well retaining effect for adapting to the mechanical characteristic of the soil body in the frost heave process.At first, the unloading characteristics of its plastic deformation are adapted to the alternately deformation process that frost heave is melted; Secondly, its light prefabricated assembly unit characteristics adapt to reduction labour intensity, reduce the needs that the heat of frozen soil is disturbed; The 3rd, L type retaining wall is a precast assembly, and its required place is less, and also just less to the influence degree of job site surrounding enviroment, therefore, the application of this structure has great importance for environmental protection.
The present invention has proposed the method for testing of " L " type retaining wall simultaneously, and in the sectional dimension of Permafrost Area design retaining wall, key is to determine design load, and the design load here mainly is to determine lateral pressure.By relation and the frost heave thaw collapse level that measured result comes analysis side pressure, the uniformity and the optimal design parameter of checking actual forced status and design stress state are for design, the construction of similar engineering from now on provides reference frame.The present invention is simple, has good use value.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the test schematic diagram.
Description of reference numerals is as follows:
The 1-knee wall, the 2-rectangular base, 3-bankets, and 4-is soil naturally, 5-road bed, 6-earth pressure cell.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is described in detail.
Referring to Fig. 1, a kind of " L " type retaining wall comprises rectangular base 2, be provided with knee wall 1 on the top of rectangular base 2, described knee wall 1 is up-narrow and down-wide, and one of them side is a vertical plane, another side is the inclined plane, a relatively side setting of rectangular base 2 of knee wall 1.
Above the construction of said L type retaining wall:
(a) preparation: comprise the prefabricated preparation of barricade and job site preparation two parts.Wherein prefabricated preparation is carried out in precast yard, and according to design drawing, concrete adopts label 25#, rolls reinforcing cage in advance, places the punching block cast.Before the on-the-spot formal construction, construction plant and natural vegetation on every side thereof be protected, the drainage works of construction plant should be carried out in advance.
(b) excavation: should adopt the mechanization rapid constructing method, concentrate strength on, finish rapidly.Its program comprises loosen the soil (together with the spoir channel part) and spoir two parts.
Be excavated to and change the stage of filling out, the ice sheet that reply exposes blocks protection as covering open night simple and easy daytime, melts influence to reduce heat.
(c) lifting backfill: after the clear side, the levelling unwrapping wire lifts the prefabricated barricade piece of L type again, has only a loop wheel machine, and every day, average approximately lifting was about 25.All after the lifting well, banket behind the beginning wall, changing bankets adopts the coarse granule gravel soil.Rammer is filled out in layering, and every 50cm one deck, road roller ram to be pressed, and after the tiling compacting, continues the rammer of filling out of one deck down.
The backfill operation should be noted: backfill is melted muddy water in proper order for from inside to outside, fill piecemeal from high to low so that outwards clear up the heat of next backfill section successively.
(d) whole slope: the bottom is a barricade, and bank protection is used on top instead, and ratio of slope is 1: 1.75, and the plastic foam plate capping has thermal insulation (can impel and melt deep attenuation) and prevents effect such as topsoil loss.
Referring to Fig. 2, the method for testing of a kind of " L " type retaining wall is in vertical plane one side some earth pressure cells to be set, and described earth pressure cell stacks from top to bottom successively.Said earth pressure cell is the steel chord type earth pressure gauge.
By the lateral pressure maximum of intensity that earth pressure cell obtains, be 1.15～5.24 times of warm season dead season, 2.72 times of average out to.For construction can provide reliable directive function.
Claims (4)
1, a kind of " L " type retaining wall comprises rectangular base (2), is provided with knee wall (1) on the top of rectangular base (2), described knee wall (1) is up-narrow and down-wide, one of them side is a vertical plane, and another side is the inclined plane, and knee wall (1) is a side setting of rectangular base (2) relatively.
2, the job practices of a kind of " L " as claimed in claim 1 type retaining wall is characterized in that: comprise the steps: successively
(a) preparation: comprise the prefabricated preparation of barricade and job site preparation two parts.Wherein prefabricated preparation is carried out in precast yard, and according to design drawing, concrete adopts label 25#, rolls reinforcing cage in advance, places the punching block cast.Before the on-the-spot formal construction, construction plant and natural vegetation on every side thereof be protected, the drainage works of construction plant should be carried out in advance;
(b) excavation: should adopt the mechanization rapid constructing method, concentrate strength on, finish rapidly.Its program comprises loosen the soil (together with the spoir channel part) and spoir two parts;
Be excavated to and change the stage of filling out, the ice sheet that reply exposes blocks protection as covering open night simple and easy daytime, melts influence to reduce heat;
(c) lifting backfill: after the clear side, the levelling unwrapping wire lifts the prefabricated barricade piece of L type again, has only a loop wheel machine, and every day, average approximately lifting was about 25.All after the lifting well, banket behind the beginning wall, changing bankets adopts the coarse granule gravel soil.Rammer is filled out in layering, and every 50cm one deck, road roller ram to be pressed, and after the tiling compacting, continues the rammer of filling out of one deck down;
The backfill operation should be noted: backfill is melted muddy water in proper order for from inside to outside, fill piecemeal from high to low so that outwards clear up the heat of next backfill section successively;
(d) whole slope: the bottom is a barricade, and bank protection is used on top instead, and ratio of slope is 1: 1.75, and the plastic foam plate capping has thermal insulation (can impel and melt deep attenuation) and prevents effect such as topsoil loss.
3, the method for testing of a kind of " L " as claimed in claim 1 type retaining wall, it is characterized in that: be in vertical plane one side some earth pressure cells 6 to be set, described earth pressure cell stacks from top to bottom successively.
4, the method for testing of a kind of " L " as claimed in claim 1 type retaining wall, it is characterized in that: described earth pressure cell is the steel chord type earth pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710018923XA CN101418575B (en) | 2007-10-23 | 2007-10-23 | L-shaped retaining wall, construction method and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710018923XA CN101418575B (en) | 2007-10-23 | 2007-10-23 | L-shaped retaining wall, construction method and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418575A true CN101418575A (en) | 2009-04-29 |
| CN101418575B CN101418575B (en) | 2010-10-06 |
Family
ID=40629562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710018923XA Active CN101418575B (en) | 2007-10-23 | 2007-10-23 | L-shaped retaining wall, construction method and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101418575B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787708A (en) * | 2010-02-10 | 2010-07-28 | 黄靓 | Integrally-assembled cantilever-type retaining wall and construction method thereof |
| CN104005395A (en) * | 2014-06-06 | 2014-08-27 | 水利部交通运输部国家能源局南京水利科学研究院 | Pop-up mounting device for soil pressure gauge |
| CN104631491A (en) * | 2013-11-06 | 2015-05-20 | 贵阳铝镁设计研究院有限公司 | Method for improving stress performance of retaining wall and retaining wall structure |
| CN104988947A (en) * | 2015-06-11 | 2015-10-21 | 华北水利水电大学 | Hydraulic engineering retaining wall |
| CN110487449A (en) * | 2019-07-03 | 2019-11-22 | 南方科技大学 | A kind of real-time landslide monitoring system and method |
| CN116556235A (en) * | 2023-03-13 | 2023-08-08 | 中国科学院西北生态环境资源研究院 | Gear system for preventing and controlling hot-melt landslide in plateau frozen soil area |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058541C (en) * | 1994-04-22 | 2000-11-15 | 吴莺荣 | Construction process of herringbone retaining wall |
| AR006346A1 (en) * | 1996-03-23 | 1999-08-25 | Kim Jong Chun | A REINFORCED FRAME STRUCTURE. |
| CN2825749Y (en) * | 2005-01-28 | 2006-10-11 | 贵阳铝镁设计研究院 | Prestressed prefabricated reinforced concrete retaining wall plate |
-
2007
- 2007-10-23 CN CN200710018923XA patent/CN101418575B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787708A (en) * | 2010-02-10 | 2010-07-28 | 黄靓 | Integrally-assembled cantilever-type retaining wall and construction method thereof |
| CN104631491A (en) * | 2013-11-06 | 2015-05-20 | 贵阳铝镁设计研究院有限公司 | Method for improving stress performance of retaining wall and retaining wall structure |
| CN104005395A (en) * | 2014-06-06 | 2014-08-27 | 水利部交通运输部国家能源局南京水利科学研究院 | Pop-up mounting device for soil pressure gauge |
| CN104005395B (en) * | 2014-06-06 | 2015-10-28 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of earth pressure gauge ejects erector |
| CN104988947A (en) * | 2015-06-11 | 2015-10-21 | 华北水利水电大学 | Hydraulic engineering retaining wall |
| CN104988947B (en) * | 2015-06-11 | 2017-07-21 | 华北水利水电大学 | A kind of retaining wall for hydraulic engineering |
| CN110487449A (en) * | 2019-07-03 | 2019-11-22 | 南方科技大学 | A kind of real-time landslide monitoring system and method |
| CN116556235A (en) * | 2023-03-13 | 2023-08-08 | 中国科学院西北生态环境资源研究院 | Gear system for preventing and controlling hot-melt landslide in plateau frozen soil area |
| CN116556235B (en) * | 2023-03-13 | 2023-09-29 | 中国科学院西北生态环境资源研究院 | Gear system for preventing and controlling hot-melt landslide in plateau frozen soil area |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101418575B (en) | 2010-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107558480B (en) | The construction method of the reinforced ecological slope protection structure of roadbed three-dimensional water discharge | |
| CN101418575B (en) | L-shaped retaining wall, construction method and detection method thereof | |
| CN102434717B (en) | Construction method of joist steel pipe-jacking work pit | |
| CN109898520A (en) | A kind of heavy wall construction method | |
| CN111305027B (en) | Rapid repairing construction method and repairing structure for subsidence of karst area pavement | |
| CN108487234B (en) | Construction method of cast-in-situ pile plate type platform wall | |
| CN205348221U (en) | Merogenesis formula prefabricated barricade building block and retaining wall structure on an empty stomach | |
| CN102493485B (en) | Method for building slope protection retaining wall during filling | |
| CN111622234B (en) | Unloading type thin-wall box-type retaining wall supported by obliquely and vertically combined steel pipe pile and construction process | |
| CN112854254A (en) | Construction method for existing railway field level subgrade support in deep artificial waste slag area | |
| CN111005278B (en) | Rapid repairing and reinforcing method for locally-reinforced embankment | |
| CN210263073U (en) | Supporting construction that adjacent foundation ditch synchronous excavation was asynchronously backfilled | |
| CN112176879A (en) | Bridge pier foundation underpinning structure and construction method | |
| CN216739669U (en) | Steel pipe inclined support resisting foundation pit support micro-deformation | |
| CN212801549U (en) | H-shaped double-row steel sheet pile supporting structure | |
| CN212670237U (en) | Repairing structure for subsidence of karst area pavement | |
| CN102733408A (en) | Method for manufacturing low-disturbance melt-resistant frozen soil foundation of transmission tower | |
| CN114086505A (en) | River course slope protection structure for hydraulic engineering and laying construction method | |
| CN111501423A (en) | 400km/h and above high-speed rail strong expansive rock deep cutting integral supporting and retaining structure and construction method | |
| CN111287198A (en) | Supporting structure of soft soil foundation pit and construction method thereof | |
| CN219315798U (en) | Ecological retaining wall | |
| RU2249082C1 (en) | Method for erecting shallow and surface foundations in thawed ground located above underlying permafrost or rock grounds | |
| CN220184056U (en) | High-fill embankment comprehensive protection and reinforcement device based on soil arch effect | |
| CN218521839U (en) | Assembled floor column retaining wall | |
| CN217324788U (en) | Abrupt slope roadbed structure convenient to prefabrication installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |