CN202945609U - Foundation pit retaining structure of underground diaphragm wall - Google Patents
Foundation pit retaining structure of underground diaphragm wall Download PDFInfo
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- CN202945609U CN202945609U CN 201220360805 CN201220360805U CN202945609U CN 202945609 U CN202945609 U CN 202945609U CN 201220360805 CN201220360805 CN 201220360805 CN 201220360805 U CN201220360805 U CN 201220360805U CN 202945609 U CN202945609 U CN 202945609U
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Abstract
Provided is a foundation pit retaining structure of an underground diaphragm wall. Steel plate columns formed by two wing plates of H-shaped structural steel through welding are arranged, the length of each steel plate column is equal to the design depth plus the length of an extended portion of the underground diaphragm wall, two sides of each unit groove section are protective walls, the steel plate columns are tightly wedged with the protective walls through wooden wedges, two ends of two channel steel bars are covered on the steel plate columns, steel keels are placed in the unit groove sections, and two joint boxes are respectively placed between the two wing plates outside the two steel plate columns. The steel plate columns and the unit groove sections are both in a reinforced concrete structure.
Description
Technical field
The utility model relates to a kind of foundation pit supporting construction pattern, specifically be exactly by the unit groove section between two metal sheet pile joints and the metal sheet pile joint form, the foundation pit supporting construction pattern of a kind of diaphragm wall (being designated hereinafter simply as ground-connecting-wall) of rods arranged in horizontal line.
Background technology
For the smooth construction that guarantees foundation ditch and peripheral underground installation, safety of building, usually between foundation ditch and foundation pit side-wall, supporting and protection structure is set, foundation pit supporting construction has various ways.Ground-connecting-wall is a kind of foundation pit supporting construction, in base pit engineering, more and more used at present, because ground-connecting-wall can not only be finished the traditional function of foundation pit supporting construction---stop the outer soil of foundation pit side-wall in foundation ditch, to move as soil-baffling structure, prevent that as water-stop curtain the outer water of foundation pit side-wall from flowing into foundation ditch, and ground-connecting-wall can be used as skin, the carrying vertical force.
Ground-connecting-wall is comprised of the joint between unit groove section, the unit groove section.During the ground-connecting-wall construction, use first groover, adopt mud off, excavate out the unit groove section with certain depth and width, in the unit groove section, place reinforcing cage, then concreting connects into horizontal-extending, continuous ground-connecting-wall with joint with several unit groove sections that are comprised of reinforcing cage and concrete.
Along with the development of urban construction, the degree of depth of foundation ditch is increasing, causes as the degree of depth of the ground-connecting-wall of one of foundation pit supporting construction also increasingly, and the degree of depth of the ground-connecting-wall that has has surpassed 60m.The increase of the ground-connecting-wall degree of depth can cause following problem: (1) causes the increase of the reinforcing cage degree of depth, and the increase of the reinforcing cage degree of depth can cause the increase of reinforcing bar material cost; (2) increase of the reinforcing cage degree of depth causes the increase of reinforcing cage weight, thereby has increased cost and the danger of install reinforcing cage in the past unit groove section; (3) increase of the reinforcing cage degree of depth, the also corresponding increase of the degree of depth of unit groove section two cell walls, the possibility that injustice because of unit groove section two cell walls causes reinforcing cage to transfer occurs when transferring reinforcing cage also to be increased, and not only can slow down speed of application, and can strengthen construction cost.
In order to guarantee the safety of foundation ditch itself, the peripheral underground installation of foundation ditch and above ground structure, reduce the cost of ground-connecting-wall material and install reinforcing cage, accelerate speed of application, reducing construction cost, be badly in need of to solve the foundation pit supporting construction of a kind of ground-connecting-wall of above-mentioned three problems, but there is no at present the foundation pit supporting construction that can solve a kind of ground-connecting-wall of above-mentioned three problems.
The utility model content
The purpose of this utility model is intended to overcome the slowing down of increase, speed of application of increase along with the increasing ground-connecting-wall material cost that causes of the ground-connecting-wall degree of depth, install reinforcing cage cost, the increase of construction cost, is formed, rods arranged in horizontal line, can be solved the foundation pit supporting construction pattern of a kind of ground-connecting-wall of above-mentioned three problems by the unit groove section between two metal sheet pile joints and the metal sheet pile joint thereby provide a kind of.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of foundation pit supporting construction of diaphragm wall, it is characterized in that this foundation pit supporting construction is by the wing plate 1 of I-shaped shaped steel, metal sheet pile 2, ground-connecting-wall projected depth 3, prolongation 4, circular hole 5, boring 6, unit groove section 7, revetment 8, timber wedge 9, channel-section steel 10, joint case 11 consists of, wherein I-shaped shaped steel has four blocks of wing plates 1, metal sheet pile 2 is made in up and down two rear welding of wing plate 1 docking of two shaped steel inboards, the length of metal sheet pile 2 equals the length that the ground-connecting-wall degree of depth 3 adds prolongation 4, the left side with metal sheet pile 2 prolongations 4, each two blocks of wing plate 1 of the right cut away, be in remaining metal sheet pile central authorities and respectively bore a circular hole 5 on the tetragonal steel plate, bottom, two ends in unit groove section 7 holes respectively 6, the prolongation 4 of two metal sheet piles 2 of above-mentioned cutting wing plate is inserted respectively in the boring 6, and to boring 6 in placing of concrete, the two sides of unit groove section 7 are revetment 8,9 wedgings of four timber wedges are used respectively in space between two metal sheet piles 2 at the revetment 8 of two sides and two ends, two ends with two channel-section steels 10 are overlapped on respectively on two metal sheet piles 2 at unit groove section 7 two ends, two joint casees 11 are placed on respectively between two blocks of wing plates 1 in two metal sheet pile 2 outsides, reinforcing cage 12 is put into unit groove section 7 between two channel-section steels 10, two metal sheet piles 2 and unit groove section 7 are reinforced concrete structure, after concrete is fixed with timber wedge 9, channel-section steel 10 and joint case 11 take out, the foundation pit supporting construction of the diaphragm wall in first unit groove section 7 is made, and links the foundation pit supporting construction of the diaphragm wall of making again second unit groove section 7 by above-mentioned identical modular construction.
Described foundation pit supporting construction is characterized in that a little steel disc is welded respectively at the two ends of described channel-section steel 10, and the little steel disc at two ends covers the top at metal sheet pile 2.
Realize that construction sequence of the present utility model is as follows:
1, smooth location is removed on the ground obstruction and underground utilities, keeps levelling of the land;
2, ground on the scene welds two blocks of wing plates in the right side of an I-shaped shaped steel 1, two blocks of wing plates 1 in left side with the I-shaped shaped steel of another piece, makes metal sheet pile 2, and makes the length of metal sheet pile 2 equal ground-connecting-wall projected depth 3+ prolongation 4;
3, slice off prolongation 4 left sides in the metal sheet pile 2, each two blocks of wing plate 1 of the right;
4, in the lower end of 4 four sides of prolongation, respectively open the circular hole 5 of a diameter 0.3m with electronic puncher;
5, excavate the unit groove section 7 of rectangular shape in the place of design cell groove section 7 with excavator, the degree of depth 1-2m of unit groove section 7, the bearing of trend of unit groove section 7 is parallel to the bearing of trend of ground-connecting-wall, the both sides of unit groove section 7 revetment 8 that the reinforcing bar that gets up with the colligation of concrete filling parcel forms of constructing respectively, the effect of revetment 8 is to prevent that shallow-layer place sand is to the movement of unit groove section 7, the length of revetment 8 is the width of the length+two metal sheet piles 2 in unit groove section 7 two ends of unit groove section 7, the degree of depth 1-2m of revetment 8, the width 0.1-0.25m of revetment 8, the place sand is close in the outside of revetment 8;
6, groover is moved to the centre of unit groove section 7, dig downwards along revetment 8, begin to calculate from Ground, the cutting depth of groover is to the projected depth 3 of ground-connecting-wall;
7, Spiral digging machine is moved to the left side of unit groove section 7, the Spiral digging machine drill bit extend into ground-connecting-wall projected depth 3, rotary drill, and the boring 6 of spudding in, 6 diameters of holing 〉=metal sheet pile 2 catercorner lengths, the degree of depth of boring 6 equals metal sheet pile prolongation 4;
8, Spiral digging machine is moved to the right side of unit groove section 7, the Spiral digging machine drill bit extend into ground-connecting-wall projected depth 3, rotary drill, and the boring 6 of spudding in, 6 diameters of holing 〉=metal sheet pile 2 catercorner lengths, the degree of depth of boring 6 equals metal sheet pile prolongation 4;
9, metal sheet pile 2 is hung in the boring 6 of unit groove section 7 left and right sides with crane;
10, use timber wedge 9 with metal sheet pile 2 and revetment 8 wedgings;
11, with channel-section steel 10 2 pairs of top embeddings of unit groove section 7 two ends metal sheet piles are drawn, the steel disc of the two ends welding of channel-section steel 10 covers on metal sheet pile 2;
12, toward metal sheet pile 2 interior concrete perfusions, then concrete flows in the space between boring 6 and the prolongation 4 by circular hole 5, till being filled into top of concrete to prolongation 4 and pushing up, like this bottom of metal sheet pile 2 is fixed;
13, etc. between boring 6 and the prolongation 4 behind the concrete initial set in the space, past metal sheet pile 2 interior concrete perfusions are to Ground;
14, with crane along the space between 7 liang of channel-section steels 10 of unit groove section, reinforcing cage 12 is transferred to ground-connecting-wall projected depth 3, and make reinforcing cage 12 2 end shapes dwindle the part be stuck between two blocks of wing plates 1 of metal sheet pile;
15, hang joint case 11 with crane and be put in the space between metal sheet pile 2 outsides and Site Soil, the two blocks of wing plates 1, guarantee that joint case 11 tops are Ground, prevent that unit groove section 7 is outwards mobile;
16, with the space between concrete filling parcel reinforcing cage 12, reinforcing cage 12 and the metal sheet pile 2, and concrete is pushed up to Ground;
17, with manually removing timber wedge 9, channel-section steel 10, remove joint case 11 between unit groove section 7 left and right sides metal sheet piles, 2 outsides and the Site Soil with crane, the joint case is put on the place, with the place sand fill up timber wedge 9, two channel-section steels 10,, the space that stays of joint case 11.
The utility model beneficial effect
1, the inside concrete filling of metal sheet pile has increased the rigidity of metal sheet pile.Object rigidity is large, and then object is not flexible.Therefore, reduced by concrete and metal sheet pile couple together, the length of reinforcing cage in the unit groove section, generally the length than the reinforcing cage of conventional ground-connecting-wall reduces 1/3rd to 1/2nd.The minimizing of length of reinforcing cage can reduce the material cost of ground-connecting-wall.
2, reducing of length of reinforcing cage reduced the weight of reinforcing cage, thereby reduced the cost of install reinforcing cage in the past unit groove section.
3, the minimizing of length of reinforcing cage, the cell wall degree of depth of unit groove section also reduces, and the possibility that the injustice because of unit groove section two cell walls causes reinforcing cage to transfer occurs when transferring reinforcing cage also reduce, and can not only accelerate speed of application, and can reducing construction cost.
Description of drawings
Fig. 1 is I-shaped shaped steel top view
Fig. 2 is I-shaped shaped steel front view
Fig. 3 is the metal sheet pile top view
Fig. 4 is the metal sheet pile panorama sketch
Fig. 5 is that prolongation pushed up and the boring top view after prolongation was put into boring
Fig. 6 is the channel-section steel panorama sketch
Fig. 7 is supporting and protection structure ingredient top view before the concrete perfusion
Fig. 8 is supporting and protection structure ingredient top view behind the concrete perfusion
Fig. 9 is supporting and protection structure ingredient front view behind the concrete perfusion
Reference numeral: 1-wing plate; 2-metal sheet pile; 3-ground-connecting-wall projected depth; 4-prolongation; 5-circular hole; 6-boring; 7-unit groove section; 8-revetment; 9-timber wedge; 10-channel-section steel; 11-joint case; The 12-reinforcing cage.
The specific embodiment
The dark 12m of Nanjing west of a river foundation ditch, foundation ditch one length of side 7m.Ground is silty clay to below ground 4m, and 4m is following to be silt, and below ground 1.5m is phreatic surface.The outer 10m of foundation pit side-wall is No. 2 lines of Line of Nanjing Subway.In order to guarantee being perfectly safe of Line 2 Metro, must stop the outer water and soil of foundation ditch to flow in the foundation ditch, simultaneously in order to reduce construction investment, the owner determines between foundation ditch and foundation pit side-wall ground-connecting-wall to be set, with the multi-function action of performance ground-connecting-wall---gear soil, sealing, carry vertical force as the exterior wall of building.Ground-connecting-wall length 7m, degree of depth 12m, width 1m, formed by a unit groove section 7 and two metal sheet pile 2 joints, unit groove section 7 length 6m, degree of depth 12m, width 1m, each metal sheet pile 2 is comprised of the prolongation 4 of 12m ground-connecting-wall projected depth 3 and 12m, the length of metal sheet pile 2 parallel ground-connecting-wall bearing of trends is 0.5m, the width of metal sheet pile 2 vertical ground-connecting-wall bearing of trends is 0.9m, and then a kind of foundation pit supporting construction of diaphragm wall is as follows.
The I-shaped shaped steel that adopts Ma'anshan Iron and Steel Co., Ltd to produce, the length of every I-shaped shaped steel is 12m, about two blocks of wing plates are respectively arranged, I-shaped molded breadth degree i.e. " erect " the end of a thread last 0.9m extremely in " worker " word, every block of wing plate 1 is 0.25m along the length of ground-connecting-wall bearing of trend, in " worker " word about " erecting " line the distance between two wing plate 1 outermost end be 0.5m, ground on the scene welds the end face of the bottom surface of first I-shaped shaped steel and second I-shaped shaped steel, with same method the 3rd I-shaped shaped steel and the 4th I-shaped shaped steel are welded, thereby consist of the I-shaped shaped steel of two block length 24m, above the last ground on the scene two blocks of wing plates in the right side of the I-shaped shaped steel of two block length 24m 1, two blocks of wing plates 1 in left side with the I-shaped shaped steel of another block length 24m are welded, consist of the metal sheet pile 2 of length 24m, then the length of metal sheet pile 2 equals the prolongation 4 of the ground-connecting-wall projected depth 3+12m of 12m, the length of metal sheet pile 2 parallel ground-connecting-wall bearing of trends is 0.5m, and the width of vertical ground-connecting-wall bearing of trend is 0.9m; Slice off prolongation 4 left sides in the metal sheet pile 2, each two blocks of wing plate 1 of the right; In the lower end of four sides of prolongation 4, apart from 1m place, metal sheet pile 2 bottom surface, respectively open the circular hole 5 of a diameter 0.3m with the electronic puncher of 58J; Excavate the unit groove section 7 of rectangular shape with the HB205-1 excavator, the degree of depth 1m of unit groove section 7, width 1.4m, length 7m, the bearing of trend of unit groove section 7 is parallel to the bearing of trend of ground-connecting-wall, is respectively the revetment 8 of steel concrete in the both sides of parallel ground-connecting-wall bearing of trend, unit groove section 7, the length of revetment 8 is 7m, degree of depth 1m, the width 0.2m of revetment 8, the place sand is close in the outside of revetment 8; The SG35 groover is dug downwards along revetment 8, this moment unit groove section 7 length 7m, width 1m, cutting depth is to 12 meters of the projected depths of ground-connecting-wall; With the ZR100A Spiral digging machine in unit groove section 7 both sides, the 6 diameter 1.1m that hole respectively, boring 6 degree of depth 12m equals the prolongation 4 of 12m; Metal sheet pile 2 is hung in the boring 6 of unit groove section 7 left and right sides with the QY25E crane; With timber wedge 9 with wedging between metal sheet pile 2 and the revetment 8; Channel-section steel 10 with width 0.05m draws 2 pairs of top embeddings of metal sheet pile at unit groove section 7 two ends again, and the little steel disc of channel-section steel 10 two ends welding covers on metal sheet pile 2, and the distance between two channel-section steels 10 is 0.9m; Toward metal sheet pile 2 interior concrete perfusions, then the circular hole 5 of concrete by diameter 0.3m flows in the space between boring 6 and the prolongation 4, till the concrete of perfusion to prolongation 4 pushes up, like this bottom of metal sheet pile 2 fixed; Behind concrete initial set, again toward metal sheet pile 2 interior concrete perfusions to Ground; Space between two channel-section steels 10, the reinforcing cage of length 6m, width 0.9m, degree of depth 12m is transferred to ground-connecting-wall projected depth 3, wherein reinforcing cage two end shapes dwindle the part length be 0.20m, width less than 0.7m, make reinforcing cage two end shapes dwindle the part be stuck between two blocks of wing plates 1; Joint case 11 is placed in the space between two blocks of wing plates 1 in metal sheet pile 2 outsides; Wrap up the space that forms after reinforcing cage, reinforcing cage two end shapes dwindle between two blocks of wing plates 1 that part is stuck in metal sheet pile with concrete filling, and concrete is pushed up to Ground; After concrete is fixed, with manually removing timber wedge 9, channel-section steel 10, joint case 11, make the foundation pit supporting construction of first unit groove section 7 interior diaphragm walls, make again the foundation pit supporting construction of the diaphragm wall in the second unit groove section by above-mentioned identical parts connected mode.
The dark 12m of Nanjing Zhongshan Road foundation ditch, foundation ditch one length of side 7m.Ground is clay to below ground 4m, and 4m is following to be sand, and below ground 1m is phreatic surface.The outer 5m of foundation pit side-wall is Metro Line 1 in Nanjing and Nanjing city traffic hinge Zhongshan Road.In order to guarantee being perfectly safe of subway Line 1 and Zhongshan Road, transport hub, must stop the outer water and soil of foundation ditch to flow in the foundation ditch, simultaneously in order to reduce construction investment, the owner determines between foundation ditch and foundation pit side-wall ground-connecting-wall to be set, with the multi-function action of performance ground-connecting-wall---and keep off soil, sealing, carry vertical force as skin.Ground-connecting-wall length 7m, degree of depth 12m, width 1m, formed by a unit groove section 7 and two metal sheet pile 2 joints, unit groove section 7 length 6m, degree of depth 12m, width 1m, each metal sheet pile 2 is comprised of the prolongation 4 of 12m ground-connecting-wall projected depth and 18m, the length 0.5m of metal sheet pile 2 parallel ground-connecting-wall bearing of trends, the width 0.9m of metal sheet pile 2 vertical ground-connecting-wall bearing of trends, then a kind of construction sequence of foundation pit supporting construction of diaphragm wall is as follows.
1, smooth location is removed on the ground obstruction and underground utilities, keeps levelling of the land;
2, the I-shaped shaped steel that adopts Ma'anshan Iron and Steel Co., Ltd to produce, about every I-shaped shaped steel length 12m two blocks of wing plates are arranged, I-shaped shaped steel width i.e. " erect " the end of a thread last 0.9m extremely in " worker " word, every block of wing plate 1 is along the length 0.25m of ground-connecting-wall bearing of trend, in " worker " word about " erecting " line the distance between two wing plate 1 outermost end be 0.5m, an I-shaped shaped steel is divided equally the I-shaped shaped steel that is sawn into two block length 6m, then weld respectively with after other two I-shaped shaped steel dock, make respectively the I-shaped shaped steel of two block length 30m, ground on the scene welds two blocks of wing plates in the right side of the I-shaped shaped steel of a block length 30m 1, two blocks of wing plates 1 in left side with the I-shaped shaped steel of another block length 30m, make the metal sheet pile 2 of length 30m, then the length of metal sheet pile 2 equals the prolongation 4 of the ground-connecting-wall projected depth 3+18m of 12m, the length of metal sheet pile 2 parallel ground-connecting-wall bearing of trends is 0.5m, and the width of vertical ground-connecting-wall bearing of trend is 0.9m;
3, slice off prolongation 4 left sides in the metal sheet pile 2, each two blocks of wing plate 1 of the right;
4, in the lower end of four sides of prolongation 4, apart from 1m place, metal sheet pile 2 bottom surface, respectively open the circular hole 5 of a diameter 0.3m with the electronic puncher of 58J;
5, excavate the unit groove section 7 of rectangular shape in the place of design cell groove section 7 with the HB205-1 excavator, the degree of depth 1m of unit groove section 7, width 1.4m, length 7m, the bearing of trend of unit groove section 7 is parallel to the bearing of trend of ground-connecting-wall, at parallel ground-connecting-wall bearing of trend, the both sides of unit groove section 7 revetment 8 that the reinforcing bar that gets up with the colligation of concrete filling parcel forms of constructing respectively, the effect of revetment 8 is to prevent that shallow-layer place sand is to the movement of unit groove section 7, the length of revetment 8 is the length of the length+two metal sheet piles 2 in unit groove section 7 two ends of unit groove section 7, the length that is revetment 8 is 7m, the degree of depth 1m of revetment 8, the width 0.2m of revetment 8, the place sand is close in the outside of revetment 8;
6, the SG35 groover is moved to the centre of unit groove section 7, digs downwards along revetment 8, this moment unit groove section 7 length 7m, width 1m, the cutting depth of SG35 groover is to the projected depth 3 of ground-connecting-wall;
7, the ZR100A Spiral digging machine is moved to unit groove section 7 left sides, ZR100A Spiral digging machine drill bit extend into ground-connecting-wall projected depth 3, rotary drill, the boring 6 of spudding in, the 6 diameter 1.1m that hole, 6 diameters of holing 〉=metal sheet pile 2 catercorner lengths
The degree of depth 12m of boring 6 equals the prolongation 4 of 12m;
8, the ZR100A Spiral digging machine is moved to unit groove section 7 right sides, ZR100A Spiral digging machine drill bit extend into ground-connecting-wall projected depth 3, rotary drill, the boring 6 of spudding in, the 6 diameter 1.1m that hole, 6 diameters of holing 〉=metal sheet pile 2 catercorner lengths
The degree of depth 12m of boring 6 equals the prolongation 4 of 12m in the metal sheet pile 2;
9, metal sheet pile 2 is hung in the boring 6 of unit groove section 7 left and right sides with the QY25E crane;
10, use timber wedge 9 with metal sheet pile 2 and revetment 8 wedgings;
11, the channel-section steel 10 with width 0.05m draws 2 pairs of top embeddings of unit groove section 7 two ends metal sheet piles, and the steel disc small in ends of channel-section steel 10 covers on metal sheet pile 2, and the distance between two channel-section steels 10 is 0.9m.
12, toward metal sheet pile 2 interior concrete perfusions, then the circular hole 5 of concrete by diameter 0.3m flows in the space between boring 6 and the prolongation 4, till being filled into top of concrete to prolongation 4 and pushing up, like this bottom of metal sheet pile 2 fixed;
13, etc. between boring 6 and the prolongation 4 behind the concrete initial set in the space, past metal sheet pile 2 interior concrete perfusions are to Ground;
14, use the QY25E crane along the space between two channel-section steels 10, the reinforcing cage of length 6m, width 0.9m, degree of depth 12m is transferred to ground-connecting-wall projected depth 3, wherein reinforcing cage two end shapes dwindle the part length less than 0.25m, width less than 0.9m, make reinforcing cage two end shapes dwindle the part be stuck between two blocks of wing plates 1;
15, hang joint case 11 with the QY25E crane and be put in the space between metal sheet pile 2 outsides and Site Soil, the two blocks of wing plates 1, guarantee that joint case 11 tops are Ground, prevent that unit groove section 7 is to the 7 outer movements of unit groove section;
16, wrap up reinforcing cage, reinforcing cage two end shapes with concrete filling and dwindle the space that forms after part is stuck between two blocks of wing plates 1, and concrete is pushed up to Ground;
17, with manually removing timber wedge 9, channel-section steel 10, remove joint case 11 between unit groove section 7 left and right sides metal sheet piles, 2 outsides and the Site Soil with crane, joint case 11 is put on the place, with the place sand fill up timber wedge 9, two channel-section steels 10,, the space that stays of joint case 11.
Claims (2)
1. the foundation pit supporting construction of a diaphragm wall, it is characterized in that this foundation pit supporting construction is by the wing plate (1) of I-shaped shaped steel, metal sheet pile (2), ground-connecting-wall projected depth (3), prolongation (4), circular hole (5), boring (6), unit groove section (7), revetment (8), timber wedge (9), channel-section steel (10), joint case (11) consists of, wherein I-shaped shaped steel has four blocks of wing plates (1), metal sheet pile (2) is made in welding after up and down two blocks of wing plates (1) docking of two shaped steel inboards, the length of metal sheet pile (2) equals the length that the ground-connecting-wall degree of depth (3) adds prolongation (4), the two sides of unit groove section (7) are revetment (8), four timber wedge (9) wedging is used respectively in space between two metal sheet piles (2) at the revetment (8) of two sides and two ends, two ends with two channel-section steels (10) are overlapped on respectively on two metal sheet piles (2) at unit groove section (7) two ends, two joint casees (11) are placed on respectively between two blocks of wing plates (1) in two metal sheet piles (2) outside, reinforcing cage (12) is put into unit groove section (7) between two channel-section steels (10), two metal sheet piles (2) and unit groove section (7) are reinforced concrete structure.
2. foundation pit supporting construction according to claim 1 is characterized in that a steel disc is welded respectively at the two ends of described channel-section steel (10), and the steel disc at two ends covers the top in metal sheet pile (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360805 CN202945609U (en) | 2012-07-25 | 2012-07-25 | Foundation pit retaining structure of underground diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220360805 CN202945609U (en) | 2012-07-25 | 2012-07-25 | Foundation pit retaining structure of underground diaphragm wall |
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| Publication Number | Publication Date |
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| CN202945609U true CN202945609U (en) | 2013-05-22 |
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| CN 201220360805 Expired - Fee Related CN202945609U (en) | 2012-07-25 | 2012-07-25 | Foundation pit retaining structure of underground diaphragm wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963363A (en) * | 2015-06-16 | 2015-10-07 | 中铁三局集团有限公司 | Envelope device for preventing concrete from flowing around underground diaphragm wall joint and construction method |
-
2012
- 2012-07-25 CN CN 201220360805 patent/CN202945609U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963363A (en) * | 2015-06-16 | 2015-10-07 | 中铁三局集团有限公司 | Envelope device for preventing concrete from flowing around underground diaphragm wall joint and construction method |
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Granted publication date: 20130522 Termination date: 20200725 |
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| CF01 | Termination of patent right due to non-payment of annual fee |