CN105672251B - A kind of underground continuous wall groove segment construction method for riding existing sewage pipe - Google Patents

A kind of underground continuous wall groove segment construction method for riding existing sewage pipe Download PDF

Info

Publication number
CN105672251B
CN105672251B CN201610070507.3A CN201610070507A CN105672251B CN 105672251 B CN105672251 B CN 105672251B CN 201610070507 A CN201610070507 A CN 201610070507A CN 105672251 B CN105672251 B CN 105672251B
Authority
CN
China
Prior art keywords
steel
reinforcement cage
sewage conduct
steel reinforcement
sewage
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.)
Active
Application number
CN201610070507.3A
Other languages
Chinese (zh)
Other versions
CN105672251A (en
Inventor
李辉
沈水龙
吕海敏
邹洪宝
汪俊
马晓松
邢本康
郭钦利
马志珑
曹志刚
林文雄
赵鸿儒
钱佳亘
秦坤松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHINA RAILWAY 16 BUREAU GROUP BEIJING METRO ENGINEERING CONSTRUCTION Co Ltd
Shanghai Jiao Tong University
China Railway 16th Bureau Group Co Ltd
Original Assignee
CHINA RAILWAY 16 BUREAU GROUP BEIJING METRO ENGINEERING CONSTRUCTION Co Ltd
Shanghai Jiao Tong University
China Railway 16th Bureau Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHINA RAILWAY 16 BUREAU GROUP BEIJING METRO ENGINEERING CONSTRUCTION Co Ltd, Shanghai Jiao Tong University, China Railway 16th Bureau Group Co Ltd filed Critical CHINA RAILWAY 16 BUREAU GROUP BEIJING METRO ENGINEERING CONSTRUCTION Co Ltd
Priority to CN201610070507.3A priority Critical patent/CN105672251B/en
Publication of CN105672251A publication Critical patent/CN105672251A/en
Application granted granted Critical
Publication of CN105672251B publication Critical patent/CN105672251B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18Bulkheads or similar walls made solely of concrete in situ

Abstract

The invention provides a kind of underground continuous wall groove segment construction method for riding existing sewage pipe, including:The first step, the construction for leading wall;Second step, the construction of pipeline building enclosure;3rd step, the first step and second step construction after the completion of, make steel reinforcement cage;4th step, groove section milling slot;5th step, reinforcement cage hoisting and decentralization;6th step, treat at left and right sides of sewage conduct after the completion of steel reinforcement cage decentralization, to ensure that left and right sides steel reinforcement cage is vertical, detected again after the I-steel of both sides using ultrasonic wave, confirming I-steel, whether vertical and function steel reinforcement cage is vertical, then steel reinforcement cage is adjusted, until left and right sides steel reinforcement cage is completely vertical;7th step, concrete cast.The present invention substantially reduces the construction period, improves engineering efficiency.

Description

A kind of underground continuous wall groove segment construction method for riding existing sewage pipe
Technical field
The present invention relates to the construction method in a kind of underground structrue engineering technical field, in particular it relates to which one kind rides now There is the underground continuous wall groove segment construction method of sewage pipe.
Background technology
In underground structrue engineering work progress, diaphram wall has that the rigidity of structure is big, and overall performance is good, has simultaneously The advantages that good impermeability and durability.Thus, in city underground and underground structure building course, diaphram wall It is widely used.But often run into complex geologic conditions, underground water more during construction of diaphragm wall Enrich, pass through the problems such as existing pipeline in underground, the presence of the existing pipeline in underground can cause serious shadow to the construction of diaphram wall Ring.
When diaphram wall runs into existing underground utilities in work progress, it will usually change arranging for underground utilities using cutting Apply, or underground utilities temporary shift to the road surface expanded is treated that underground utilities are moved into original again after the completion of construction of diaphragm wall Position.But diaphram wall in work progress such as underground sewer, when rainy season set, sewer line will be unable into Row, which is cut, to be changed, and this will have a strong impact on the construction period of diaphram wall.Thus, invent a kind of underground for riding existing sewage pipe and connect The construction technology of continuous wall chase section has highly important engineering application value.
Retrieval to existing technical literature finds that it is continuous that the existing construction about diaphram wall relates generally to underground The constructing device and method of wall seam crossing, the number of applying for a patent:201410098282.3 application publication number:CN103835316A, specially Sharp title:The joint design and construction method of a kind of coercion underground continuous wall;Application number:201310676753.X Shen Qing Publication Number:CN103726513A, patent name:Joint waterproof structure of underground diaphragm wall and construction method;The number of applying for a patent: 200810038277.8 patent publication No.:CN101591909A, patent name:One kind is in urban construction under underground utilities Construction method of underground continuous wall, the patent readme:" it is an advantage of the invention that not having to remove in the construction of Urban Underground diaphragm wall Underground utilities are moved, save substantial amounts of human and material resources, financial resources, and without prejudice to traffic." however, described in it in underground utilities Under diaphram wall construction method, do not account for the influence of construction period rainfall, meanwhile, do not account for buried pipe yet The geological conditions on the stratum under line, the stratum crushing under underground utilities, when geological conditions is bad, diaphram wall can be hindered Construction, the construction to diaphram wall cause to have a strong impact on.
The content of the invention
The problem of existing during for passing through underground utilities during existing construction of diaphragm wall and defect, the present invention propose A kind of underground continuous wall groove segment construction method for riding existing sewage pipe, the construction method comprise the following steps:
The first step, the construction for leading wall;
1) U-shaped stretching steel plate water-seal pile operation side is excavated out centered on sewage conduct;
2) cuttage steel plate water-stopping stake;
3) horizontal I-shaped bracing members are arranged at intervals after the completion of steel sheet pile, after completing support, be excavated to sewage conduct bottom with Under, form guide groove;
4) after the completion of guide groove, it is sequentially completed this by normal c-type construction of guide wall order and leads the remaining construction of wall.
Second step, the construction of pipeline building enclosure:
1) place sets up pipeline enclosure device at left and right sides of sewage conduct, and in ground sewage pipeline both sides, branch is fixed in installation two Seat, wrapped up using double steel bar mesh sheet from sewage pipe ttom of pipe, weld, pour jointly upwards and with the hold-down support of top two, it is ensured that Sewage conduct consolidates;
2) hanging wheel device is set up on the right side of sewage conduct;
3rd step, the first step and second step construction after the completion of, make steel reinforcement cage;
4th step, groove section milling slot;
5th step, reinforcement cage hoisting and decentralization;
6th step, treat at left and right sides of sewage conduct after the completion of steel reinforcement cage decentralization, to ensure that left and right sides steel reinforcement cage is vertical, make Detected again after the I-steel of both sides with ultrasonic wave, confirming I-steel, whether vertical and steel reinforcement cage is vertical, then adjusts Steel reinforcement cage, until left and right sides steel reinforcement cage is completely vertical;
7th step, concreting.
Preferably, second step 1) in, the pipeline enclosure device include fixed chain bar, pulley steel plate integrated module and Double layer bar module, its annexation are:Pulley steel plate integration mould is fixedly mounted respectively in the left and right sides of sewage conduct Block, fixed chain bar are welded to connect with the pulley steel plate integrated module being connected at left and right sides of sewage conduct, double layer bar Module is connected after sewage conduct is wrapped up with pulley steel plate integrated module.
It is highly preferred that the fixed chain bar is a steel pipe, its length is:Sewage conduct diameter+2 × (150~200) mm。
It is highly preferred that the pulley steel plate integrated module is made up of pulley, straight grappling reinforcing bar and bar-mat reinforcement link steel plate, Wherein:Straight grappling reinforcing bar bypasses pulley, and straight grappling reinforcing bar both ends reserve the center that identical length links steel plate with bar-mat reinforcement Welding, and two pads link the geometric center of steel plate point-blank with bar-mat reinforcement;In bar-mat reinforcement links steel plate Steel plate end equidistant is connect on line, apart from reinforcing bar network chain and leaves two cogongrass heads;
The straight grappling reinforcing bar is the reinforcing bars of Φ 20, and its length is 120mm;
The bar-mat reinforcement link steel plate is the thick steel plates of 20~40mm, and its length is that the rectangle in double layer bar module is double Width, the width of layer bar-mat reinforcement are 30~50mm.
It is highly preferred that the double layer bar module is by 2 rectangular double-layer bar-mat reinforcements and 1 arc-shaped double-layer bar-mat reinforcement group Into, wherein:2 rectangular double-layer bar-mat reinforcements are respectively arranged in the left and right sides of sewage conduct, the both ends point of arc-shaped double-layer bar-mat reinforcement Not welded with 2 rectangular double-layer bar-mat reinforcements, sewage conduct is wrapped up, there are two nuts the end of rectangular double-layer bar-mat reinforcement, Nut location is corresponding with the cogongrass head position that bar-mat reinforcement links steel plate;Rectangular double-layer bar-mat reinforcement distance at left and right sides of sewage pipe is dirty The distance of waterpipe is 150~200mm, and distance of the arc-shaped double-layer bar-mat reinforcement apart from sewage conduct bottom is 500mm;
The length of the rectangular double-layer bar-mat reinforcement is sewage conduct buried depth+sewage conduct radius+500mm, width regards construction The scope of operation determines to the coverage of sewage conduct;
The radius of the arc-shaped double-layer bar-mat reinforcement is:Sewage conduct radius+(150~200) mm.
Preferably, second step 2) in, the hanging wheel device is made up of pulley module, balance module and steel wire rope, wherein: Pulley module is made up of pulley grappling reinforcing bar and hanging wheel pulley, steel wire rope one end with balance module by being welded to connect, pulley anchor Reinforcing bar is determined around being welded to connect after hanging wheel pulley with balance module.
Preferably, in the 3rd step, the steel reinforcement cage leaves 150~200mm sky in manufacturing process medial end portions and junction block Gap, the position of conduit is reserved at the intensive position of reinforcing bar;
The steel reinforcement cage form uses L-type steel reinforcement cage, and hangs muscle is left in the end of L-type steel reinforcement cage, in turning for L-type steel reinforcement cage One pulley is installed, correction steel wire is corrected by pulley to the position of steel reinforcement cage at break.
Preferably, in the 4th step, comprise the following steps:
1) first grab, position is close on the left of sewage conduct, apart from 150~200mm on the left of sewage conduct;
2) second grab, position is close on the right side of sewage conduct, apart from 150~200mm on the right side of sewage conduct;
3) dregs below sewage conduct is dug out with long-armed digging machine;The soil body is after both sides soil is dug out above sewage conduct, Utilize the gravity of its own and rain drop erosion effect free-falling;Steel is installed additional in the bucket body opposite direction of the bucket with long-armed digging machine Plate, bucket body is set the stand out between chute forming machine bucket body and bucket body upper end steel wire rope to be recycled, to sewage pipe to tilting under sewage conduct Road side is translated, and the dregs below sewage conduct is dug out;
4) chute forming machine is moved to first and grabs position, below the opposite side of sewage conduct, translated to sewage conduct, by sewage Remaining dregs is grabbed only below pipeline.
Preferably, in the 5th step, comprise the following steps:
1) steel reinforcement cage decentralization on the left of sewage conduct:Suspension centre is arranged in and is biased against sewage conduct side by steel reinforcement cage when transferring;When When one jiao of steel reinforcement cage transfers to bottom land, sewage conduct is bypassed below sewage conduct opposite side with correction steel wire, makes it from sewage Give steel reinforcement cage one lateral pull by hanging wheel device on the right side of pipeline, ensure that steel reinforcement cage is vertically transferred to immediately below sewage conduct, And process bracket groove entoplasm liquid is maintained at below sewage conduct below steel reinforcement cage;
2) after the decentralization in place of left side steel reinforcement cage, detected using ultrasonic wave after the I-steel of left side, confirm that I-steel is Whether no vertical and steel reinforcement cage is vertical, then adjusts steel reinforcement cage, until steel reinforcement cage is completely vertical;
3) confirm that left side steel reinforcement cage vertically after decentralization, removes the hanging wheel device on the right side of sewage conduct, will be left on hanging wheel device Side steel reinforcement cage corrects steel wire winding to the pulley of right side steel reinforcement cage, and steel reinforcement cage on the right side of sewage conduct is transferred, works as steel When one jiao of muscle cage transfers to bottom land, the hangs muscle of adjustment steel reinforcement cage end and the correction steel wire around pulley, it is ensured that right side steel reinforcement cage Vertical decentralization;
4) after the vertical decentralization of steel reinforcement cage on the right side of confirmation, at left and right sides of sewage conduct, pass through pulley and correction steel wire is drawn Dynamic left and right sides steel reinforcement cage, make both sides steel reinforcement cage linking, it is allowed to joint gap be 300mm.
Preferably, in the 7th step, using the method laterally poured during the concreting, for sewage conduct both sides steel Muscle cage seam crossing casting concrete, at casting concrete in sewage conduct bottom range to arc-shaped double-layer bar-mat reinforcement;
The strength grade of concrete is C30, and the ratio of mud is not less than 0.6.
The present invention compared with prior art, has the advantages that:
The method of the invention is efficiently solved during rainy season construction, and it is tired that diaphram wall meets construction at sewer line The problem of difficult, efficient, economic, environmentally friendly principle is adhered in whole work progress, substantially reduces the construction period, improves work Journey efficiency.
Brief description of the drawings
By reading with reference to the following drawings to riding the underground continuous wall groove segment construction method embodiment institute of existing sewage pipe The detailed description of work, other features, objects and advantages of the invention will become more apparent upon:
Fig. 1 is the sewage pipe line distribution figure that one embodiment of the invention is related to;
Fig. 2 is one embodiment of the invention pipeline enclosure device and hanging wheel device schematic diagram;
Fig. 3 is one embodiment of the invention pulley steel plate integrated module left profile schematic diagram;
Fig. 4 is one embodiment of the invention rectangle bar-mat reinforcement left profile schematic diagram;
Fig. 5 is one embodiment of the invention fabrication of reinforcing cage schematic diagram;
Fig. 6 is to grab groove schematic diagram below one embodiment of the invention pipeline;
Fig. 7-a and Fig. 7-b are that one embodiment of the invention steel reinforcement cage transfers schematic diagram;
Fig. 8 is one embodiment of the invention steel reinforcement cage position view;
In figure:
1 is fixed chain bar, and 2-1 is pulley, and 2-2 is straight grappling reinforcing bar, and 2-3 is that bar-mat reinforcement links steel plate, and 2-4 is cogongrass head, 3-1 is bar-mat reinforcement chain connected nut, and 3-2 is rectangular double-layer bar-mat reinforcement, and 3-3 is arc-shaped double-layer bar-mat reinforcement, and 4 be hangs muscle, and 5 be steel reinforcement cage Pulley, 6 be correction steel wire, and 7-1 is pulley grappling reinforcing bar, and 7-2 is hanging wheel pulley, and 8 be balance module, and 9 be steel wire rope.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention Protection domain.
By taking certain subway line as an example, involved sewage conduct is single a length of 2m, diameter 1.65m in the present embodiment, Bury in underground about 6m depths, the presence of the sewage conduct influences the construction of 4-73 width ground-connecting-walls.Sewage conduct distribution map such as Fig. 1 It is shown.
A kind of construction method for the underground continuous wall groove segment that existing sewage pipe is ridden in rainy season set, specific implementation is such as Under:
The first step, the construction for leading wall, specifically:
1) U-shaped stretching steel plate water-seal pile operation side of the 4m*9m depth for 1m is excavated out centered on sewage conduct;
2) cutting pile footpath is 400mm steel sheet piles, depth 12m, scope 4m*9m;
3) after the completion of steel sheet pile, horizontal 200mm I-shapeds bracing members are set together according at interval of 1.5m on depth 1m positions, After completing support, it is excavated to below sewage conduct bottom at 1m using long-armed digging machine, is defined by undisturbed soil;
4) after the completion of guide groove, it is sequentially completed this by normal c-type construction of guide wall order and leads the remaining construction of wall.
Second step, pipeline building enclosure construction (pipe-line maintenance structure includes pipe-line maintenance device and hanging wheel device), specifically 's:
1) place sets up pipeline enclosure device at left and right sides of sewage conduct, and in ground sewage pipeline both sides, branch is fixed in installation two Seat, wrapped up using double steel bar mesh sheet from sewage pipe ttom of pipe, weld, pour jointly upwards and with the hold-down support of top two, it is ensured that Sewage conduct consolidates;
As shown in Fig. 2 as a preferred embodiment, the pipeline enclosure device includes fixed chain bar 1, pulley steel plate one Change module and double layer bar module, its annexation are:Pulley steel plate is fixedly mounted respectively in the left and right sides of sewage conduct Integrated module, fixed chain bar 1 are welded to connect with the pulley steel plate integrated module at left and right sides of sewage conduct, clad steel Muscle net module is connected after sewage conduct is wrapped up with pulley steel plate integrated module.
As shown in Fig. 2 the fixed chain bar 1 is a steel pipe, length of steel pipe is:Sewage conduct diameter+2 × (150~ 200)mm。
As shown in figure 3, the pulley steel plate integrated module links steel by pulley 2-1, straight grappling reinforcing bar 2-2, bar-mat reinforcement Plate 2-3, cogongrass head 2-4 are formed, wherein:Straight grappling reinforcing bar 2-2 bypasses pulley 2-1, and straight grappling reinforcing bar 2-2 both ends reserve identical Length links steel plate 2-3 center weld with bar-mat reinforcement, and two pads link steel plate 2-3 geometric center one with bar-mat reinforcement On bar straight line;On bar-mat reinforcement link steel plate 2-3 center line, connect steel plate 2-3 ends equidistant apart from reinforcing bar network chain and leave two Individual cogongrass head 2-4.
As a preferred embodiment, the straight grappling reinforcing bar 2-2 is the reinforcing bars of Φ 20, and its length is 120mm;The bar-mat reinforcement It is the thick steel plates of 20~40mm to link steel plate 2-3, and its length is rectangular double-layer bar-mat reinforcement 3-2 width, width is 30~50mm.
As shown in Figure 2, Figure 4 shows, as a preferred embodiment, the double layer bar module 3 is by bar-mat reinforcement chain connected nut 3- 1st, 2 rectangular double-layer bar-mat reinforcement 3-2 and 1 arc-shaped double-layer bar-mat reinforcement 3-3 composition, wherein:2 3-2 points of rectangular double-layer bar-mat reinforcements Be not installed on the left and right sides of sewage conduct, arc-shaped double-layer bar-mat reinforcement 3-3 both ends respectively with 2 rectangular double-layer bar-mat reinforcement 3-2 Welding, sewage conduct is wrapped up;There are two bar-mat reinforcement chain connected nut 3-1, and steel in rectangular double-layer bar-mat reinforcement 3-2 end Muscle network chain connected nut 3-1 position links steel plate cogongrass head 2-4 position correspondence with bar-mat reinforcement;Rectangle at left and right sides of sewage conduct Double layer bar 3-2 is 150~200mm apart from the distance of sewage conduct, and arc-shaped double-layer bar-mat reinforcement 3-3 is apart from sewage conduct bottom Distance be 500mm;Rectangular double-layer bar-mat reinforcement 3-2 length is 5.2m, width 1.8m, the half of arc-shaped double-layer bar-mat reinforcement 3-3 Footpath is 975mm.
2) hanging wheel device is set up on the right side of sewage conduct:
As shown in Fig. 2 as a preferred embodiment, the hanging wheel device is by pulley module, balance module 8 and steel wire rope 9 Composition, wherein:Pulley module is made up of pulley grappling reinforcing bar 7-1 and hanging wheel pulley 7-2, one end and the balance module 8 of steel wire rope 9 By being welded to connect, pulley grappling reinforcing bar 7-1 is welded to connect around hanging wheel pulley 7-2 with balance module 8.
As a preferred embodiment, the pulley grappling reinforcing bar 7-1 is the reinforcing bars of Φ 20, and its length is 120mm.
As a preferred embodiment, the balance module 8 is a rectangular steel plates, using Q235 steel, its a length of 300mm, width For 200mm, thickness 100mm.
As a preferred embodiment, the length of the steel wire rope 9 is 5.2m, and (wherein 6 representatives are coiled into 6 × 19+1 of model The number of share of stock of steel wire rope, 19 represent it is per share in steel wire number, 1 represent among hemp core).
After the completion of 3rd step, the first step and second step construction, steel reinforcement cage is made:
The steel reinforcement cage should leave 150~200mm space in manufacturing process medial end portions and junction block, intensive in reinforcing bar Position reserves the position of conduit;The steel reinforcement cage form uses L-type steel reinforcement cage, and hangs muscle 4 is left in L-type steel reinforcement cage end, in L-type One steel reinforcement cage pulley 5 is installed, correction steel wire 6 can be to the position of steel reinforcement cage by steel reinforcement cage pulley 5 at the turning point of steel reinforcement cage It is corrected, as shown in Figure 5.
4th step, groove section milling slot, specifically:
1) first to grab (see Fig. 6), position is close on the left of sewage conduct, apart from 150~200mm on the left of sewage conduct, first It is 2.8m to grab width, and depth is grabbed to -43.21m;
2) second to grab (see Fig. 6), position is close on the right side of sewage conduct, apart from 150~200mm on the right side of sewage conduct, second It is 2.8m to grab width, and depth is grabbed to -43.21m;
3) dregs below sewage conduct is dug out with long-armed digging machine, depth is dug to -13m;The soil body is treated above sewage conduct After both sides soil is dug out, free-falling is acted on using the gravity of its own and rain drop erosion;In the bucket body of the bucket with long-armed digging machine Opposite direction installs steel plate additional, bucket body is recycled to tilting under sewage conduct between chute forming machine bucket body and bucket body upper end steel wire rope Stand out, about 50cm, translated to sewage conduct side, continue below from sewage conduct and grab to from -43.21m downwards;
4) chute forming machine is moved to first and grabs position, with same principle below the opposite side of sewage conduct, to sewage conduct Translation, remaining dregs below sewage conduct is grabbed only, until -43.21m locates.
4th step, reinforcement cage hoisting and decentralization, specifically:
1) steel reinforcement cage decentralization on the left of sewage conduct
Suspension centre is arranged in and is biased against sewage conduct side by steel reinforcement cage when transferring;When one jiao of steel reinforcement cage transfers to bottom land, use Correction steel wire 6 bypass sewage conduct below the sewage conduct opposite side, make its from sewage conduct right side by hanging wheel pulley 7-2 to One lateral pull of steel reinforcement cage, ensure that steel reinforcement cage is vertically transferred to immediately below sewage conduct, and in steel reinforcement cage decentralization process bracket groove Interior slurries should be maintained at below sewage conduct, as shown in Fig. 7-a;
2) after the decentralization in place of left side steel reinforcement cage, detected using ultrasonic wave after the I-steel of left side, whether confirm I-steel Vertically, and whether function steel reinforcement cage is vertical, then adjusts steel reinforcement cage, until steel reinforcement cage is completely vertical;
3) confirm that left side steel reinforcement cage vertically after decentralization, removes the hanging wheel device on the right side of sewage conduct, will be left on hanging wheel device The correction steel wire 6 of side steel reinforcement cage is wound on the steel reinforcement cage pulley 5 on right side, and steel reinforcement cage on the right side of sewage conduct is transferred, when When one jiao of steel reinforcement cage transfers to bottom land, the hangs muscle 4 of adjustment steel reinforcement cage end and around steel reinforcement cage pulley 5 and hanging wheel pulley 7-2 Correct steel wire 6, it is ensured that right side steel reinforcement cage is vertically transferred, as shown in Fig. 7-b;
4) confirm that right side steel reinforcement cage vertically after decentralization, at left and right sides of sewage conduct, passes through steel reinforcement cage pulley 5 and correction steel Silk 6 pulls left and right sides steel reinforcement cages, makes the linking of both sides steel reinforcement cages, it is allowed to joint gap be 300mm, as shown in Figure 8.
6th step, after the completion for the treatment of the decentralization of sewage conduct both sides steel reinforcement cages, to ensure that steel reinforcement cage is vertical, using ultrasonic wave two Detected again after the I-steel of side, confirm whether I-steel is vertical, and whether function steel reinforcement cage is vertical, then adjusts steel reinforcement cage, Until steel reinforcement cage is completely vertical.
7th step, concreting:
Strength grade of concrete is C30, and the ratio of mud is not less than 0.6;It is right using the method laterally poured during concreting It is double to arc for casting concrete in sewage conduct bottom range in sewage conduct both sides steel reinforcement cage seam crossing casting concrete At layer bar-mat reinforcement.
Further,, can be with after above-mentioned 6th step as a preferred embodiment:After steel reinforcement cage location confirmation, root According to needs, the fixation chain bar 1 and pulley 2-1 of pipe-line maintenance device can be removed optionally.Then concreting is carried out again.
Above-described embodiment gives the implementation detail of the construction method for the underground continuous wall groove segment for riding existing sewage pipe, has Solve during rainy season construction to effect, at diaphram wall chance sewer line the problem of constructional difficulties, in whole work progress In adhere to efficient, economic, environmentally friendly principle, substantially reduce the construction period, improve engineering efficiency.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow Ring the substantive content of the present invention.

Claims (10)

1. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe, it is characterised in that the construction method includes Following steps:
The first step, the construction for leading wall:
1) U-shaped stretching steel plate water-seal pile operation side is excavated out centered on sewage conduct;
2) cuttage steel plate water-stopping stake;
3) after the completion of steel sheet pile, horizontal I-shaped bracing members are arranged at intervals, after completing support, are excavated to below sewage conduct bottom, shape Into guide groove;
4) after the completion of guide groove, it is sequentially completed this by normal c-type construction of guide wall order and leads the remaining construction of wall;
Second step, the construction of pipeline building enclosure:
1) place sets up pipeline enclosure device at left and right sides of sewage conduct, and two hold-down supports are installed in ground sewage pipeline both sides, Wrapped up using double steel bar mesh sheet from sewage pipe ttom of pipe, weld, pour jointly, it is ensured that sewage pipe with the hold-down support of top two upwards Road consolidates;The pipeline enclosure device is used to protect sewage conduct not to be destroyed in ground-connecting-wall decentralization process;
2) hanging wheel device is set up on the right side of sewage conduct, the hanging wheel device is used to ensure that the steel reinforcement cage with pulley can be vertical Decentralization;
3rd step, the first step and second step construction after the completion of, make steel reinforcement cage;
4th step, the groove section milling slot at left and right sides of sewage conduct;
5th step, using hanging wheel device by reinforcement cage hoisting and the bottom land transferred at left and right sides of the sewage conduct of the 4th step;
6th step, treat at left and right sides of sewage conduct after the completion of steel reinforcement cage decentralization, to ensure that left and right sides steel reinforcement cage is vertical, using super Sound wave detects again after the I-steel of both sides, and confirming I-steel, whether vertical and steel reinforcement cage is vertical, then adjusts reinforcing bar Cage, until left and right sides steel reinforcement cage is completely vertical;
7th step, concreting.
2. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim 1, its feature exist In, second step 1) in, the pipeline enclosure device includes fixed chain bar, pulley steel plate integrated module and double layer bar mould Block, pulley steel plate integrated module is fixedly mounted respectively in the left and right sides of sewage conduct, fixed chain bar is with being connected sewage conduct The pulley steel plate integrated module of the left and right sides is welded to connect, double layer bar module sewage conduct is wrapped up after with pulley Steel plate integrated module connects.
3. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim 2, its feature exist In, the pulley steel plate integrated module is made up of pulley, straight grappling reinforcing bar and bar-mat reinforcement link steel plate, wherein:Straight grappling steel Muscle bypasses pulley, and straight grappling reinforcing bar both ends reserve the center weld that identical length links steel plate with bar-mat reinforcement, and two welderings Contact links the geometric center of steel plate point-blank with bar-mat reinforcement;On the center line of bar-mat reinforcement link steel plate, apart from reinforcing bar Network chain connects steel plate end equidistant and leaves two cogongrass heads.
4. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim 3, its feature exist In, the double layer bar module is made up of 2 rectangular double-layer bar-mat reinforcements and 1 arc-shaped double-layer bar-mat reinforcement, wherein:2 rectangles Double layer bar is respectively arranged in the left and right sides of sewage conduct, the both ends of arc-shaped double-layer bar-mat reinforcement respectively with 2 rectangular double-layers Bar-mat reinforcement welds, and sewage conduct is wrapped up, there are two nuts, nut location and bar-mat reinforcement in the end of rectangular double-layer bar-mat reinforcement The cogongrass head position for linking steel plate is corresponding.
5. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim 4, its feature exist In the radius of the arc-shaped double-layer bar-mat reinforcement is:Pipe radius+(150~200) mm;Rectangular double-layer steel at left and right sides of sewage pipe Muscle net is 150~200mm apart from the distance of sewage pipe, and distance of the arc-shaped double-layer bar-mat reinforcement apart from sewage conduct bottom is 500mm.
6. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim 1, its feature exist In, second step 2) in, the hanging wheel device is made up of pulley module, balance module and steel wire rope, wherein:Pulley module is by sliding Grappling reinforcing bar and hanging wheel pulley composition are taken turns, steel wire rope one end is connected with balance module, after pulley grappling reinforcing bar bypasses hanging wheel pulley It is connected with balance module.
7. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim any one of 1-6, Characterized in that, in the 3rd step, the steel reinforcement cage leaves 150~200mm space in manufacturing process medial end portions and junction block, The intensive position of reinforcing bar reserves the position of conduit;
The steel reinforcement cage form uses L-type steel reinforcement cage, hangs muscle is left in the end of L-type steel reinforcement cage, in the turning point of L-type steel reinforcement cage One pulley of place's installation, correction steel wire are corrected by pulley to the position of steel reinforcement cage.
8. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim any one of 1-6, Characterized in that, in the 4th step, comprise the following steps:
1) first grab, position is close on the left of sewage conduct, apart from 150~200mm on the left of sewage conduct;
2) second grab, position is close on the right side of sewage conduct, apart from 150~200mm on the right side of sewage conduct;
3) dregs below sewage conduct is dug out with long-armed digging machine;The soil body utilizes after both sides soil is dug out above sewage conduct The gravity of its own and rain drop erosion effect free-falling;Steel plate is installed additional in the bucket body opposite direction of the bucket with long-armed digging machine, Bucket body is set the stand out between chute forming machine bucket body and bucket body upper end steel wire rope to be recycled, to sewage conduct to tilting under sewage conduct Side is translated, and the dregs below sewage conduct is dug out;
4) chute forming machine is moved to first and grabs position, below the opposite side of sewage conduct, translated to sewage conduct, by sewage conduct The remaining dregs in lower section is grabbed only.
9. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim any one of 1-6, Characterized in that, in the 5th step, comprise the following steps:
1) steel reinforcement cage decentralization on the left of sewage conduct:Suspension centre is arranged in and is biased against sewage conduct side by steel reinforcement cage when transferring;Work as reinforcing bar When one jiao of cage transfers to bottom land, sewage conduct is bypassed below sewage conduct opposite side with correction steel wire, makes it from sewage conduct Right side gives steel reinforcement cage one lateral pull by hanging wheel device, ensures that steel reinforcement cage is vertically transferred to immediately below sewage conduct, and Slurries are maintained at below sewage conduct in steel reinforcement cage decentralization process bracket groove;
2) after the decentralization in place of left side steel reinforcement cage, detected using ultrasonic wave after the I-steel of left side, confirm whether I-steel hangs down Whether straight and steel reinforcement cage is vertical, then adjusts steel reinforcement cage, until steel reinforcement cage is completely vertical;
3) confirm that left side steel reinforcement cage vertically after decentralization, removes the hanging wheel device on the right side of sewage conduct, by hanging wheel device upper left side steel Muscle cage corrects steel wire winding to the pulley of right side steel reinforcement cage, and steel reinforcement cage on the right side of sewage conduct is transferred, works as steel reinforcement cage One jiao when transferring to bottom land, the hangs muscle of adjustment steel reinforcement cage end and the correction steel wire around pulley, it is ensured that right side steel reinforcement cage is vertical Decentralization;
4) after the vertical decentralization of steel reinforcement cage on the right side of confirmation, at left and right sides of sewage conduct, a left side is pulled by pulley and correction steel wire Right both sides steel reinforcement cage, make the linking of both sides steel reinforcement cages, it is allowed to joint gap be 300mm.
10. a kind of underground continuous wall groove segment construction method for riding existing sewage pipe according to claim any one of 1-6, Characterized in that, in the 7th step, using the method laterally poured during the concreting, for sewage conduct both sides steel reinforcement cage Seam crossing casting concrete, at casting concrete in sewage conduct bottom range to double layer bar module;The coagulation Native strength grade is C30, and the ratio of mud is not less than 0.6.
CN201610070507.3A 2016-02-01 2016-02-01 A kind of underground continuous wall groove segment construction method for riding existing sewage pipe Active CN105672251B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610070507.3A CN105672251B (en) 2016-02-01 2016-02-01 A kind of underground continuous wall groove segment construction method for riding existing sewage pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610070507.3A CN105672251B (en) 2016-02-01 2016-02-01 A kind of underground continuous wall groove segment construction method for riding existing sewage pipe

Publications (2)

Publication Number Publication Date
CN105672251A CN105672251A (en) 2016-06-15
CN105672251B true CN105672251B (en) 2017-11-24

Family

ID=56303890

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610070507.3A Active CN105672251B (en) 2016-02-01 2016-02-01 A kind of underground continuous wall groove segment construction method for riding existing sewage pipe

Country Status (1)

Country Link
CN (1) CN105672251B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1120620A (en) * 1994-10-11 1996-04-17 汉陆营造股份有限公司 Construction method for underground obstacles through continuous wall
JP3232450B2 (en) * 1997-11-11 2001-11-26 大成建設株式会社 Reinforcing basket setting device and method
CN101591909B (en) * 2008-05-29 2012-05-30 上海市机械施工有限公司 Construction method of underground continuous wall below underground pipeline in urban construction
CN101343869A (en) * 2008-08-19 2009-01-14 上海建工股份有限公司 Underground continuous wall construction method of city-across pipeline
CN103556623B (en) * 2013-11-05 2015-09-09 中国水电顾问集团华东勘测设计研究院有限公司 Across the continuous wall construction method of buried heavy civil pipeline
CN104652418B (en) * 2014-12-24 2016-08-17 广州机施建设集团有限公司 Diaphragm wall underground utilities position construction method

Also Published As

Publication number Publication date
CN105672251A (en) 2016-06-15

Similar Documents

Publication Publication Date Title
CN106869172B (en) In-situ deposited prefabricated split-mounting type subway underground station construction method
CN204691790U (en) A kind of Novel separated type cover arch of tunnel structural shape
CN105113543B (en) 0815 type underground pipe gallery assembling combination cabin concrete structure of shallow embedding
CN104846810B (en) Self-circulating posterior grouting bored pile construction method
CN106284314A (en) Karst landform spiral-digging pore cast-in-place pile construction method
CN104120647B (en) It is suitable for section assembling concrete frame bridge pier system and the construction method of rapid construction
CN103074890B (en) Plastic sleeve and steel pipe combined cast-in-place concrete hollow pipe pile and construction method thereof
CN205276316U (en) Modular prefabricated piping lane
CN102031784B (en) Slope protection pile pouring and cable bolting construction method for deep foundation pit
Brown et al. Design of riprap revetment
CN104089089B (en) Pressure backfill type elasticity pipe laying method of construction
CN100497841C (en) Supporting leg type underground continuous wall construction method
CN203603105U (en) Wall plate type ecological retaining wall bank protection structure
CN106120839B (en) A kind of construction technology of off-lying sea blower foundation embedded rock pile
CN202170600U (en) Anti-segregation device for concrete pouring of large-angle sloping roof
CN105839666A (en) Total-prefabricated superimposed assembly type underground pipe gallery and connecting node thereof
CN103924621B (en) Underground continuous wall groove segment H profile steel joint grouting plate anti-concrete by-pass means and anti-concrete stream construction method
CN102505695B (en) Construction method for deep foundation pit of three-dimensional garage
CN103526770B (en) A kind of construction method of high antiseepage anti-floating pile raft structure
CN104060631B (en) A kind of manhole mouth elevation Dynamic controlling structure
CN101538833B (en) Vertical subsection double-wall steel cofferdam water stopping construction method
CN105862916A (en) Superimposed assembled type underground pipe gallery system and construction and manufacturing process
CN103015456B (en) Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure
CN102322064A (en) Construction method for underground diaphragm wall of deep foundation pit for subway station in collapsible loess areas
CN204645075U (en) A kind of urban road soft foundation underground pipeline bracing means

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant