CN1117905C

CN1117905C - Construction method and structure of continuous underground wall of dual-layer wall

Info

Publication number: CN1117905C
Application number: CN 99122203
Authority: CN
Inventors: 许琦
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-12
Filing date: 1999-10-12
Publication date: 2003-08-13
Anticipated expiration: 2019-10-12
Also published as: CN1291670A

Abstract

The present invention relates to a continuous wall construction method of a double-layered wall and a structure thereof. The present invention is characterized in that a first double-layered type continuous wall unit wall body is arranged, the first double-layered type continuous wall unit wall body is in a double-layered wall type and is provided with an upper base plate and a lower base plate, and the upper base plate and the lower base plate are symmetrically arranged; a skeleton structure set is arranged between the upper base plate and the lower base plate, a plurality of brackets are connected between the upper base plate and the lower base plate, a plurality of transverse bars and brackets are horizontally arranged, and net molded slices are fixedly arranged between the arranged brackets; a suspension bracket type steel bar is arranged between each two opposite brackets. In this way, effective water resistance is achieved, a reinforced bar protective layer is guaranteed not to influence the quality of the wall body; besides, construction management and transportation are convenient.

Description

The construction of diaphragm wall method and the structure thereof of heavy sliding folded group double wall

Technical field

The present invention relates to a kind of continuous wall construction method and structure thereof of double wall.

Background technology

At present, the operating type of general traditional diaphragm wall, at first dig and establish the paragraph zanjon desiring to dig the ground scope periphery of establishing ground, and this zanjon is for the reinforcing cage PC plate plate body of prefabricated one-body molded state (or insert) of inserting pre-group, when the reinforcing cage (or the standby PC plate of precasting) that will constitute by the bar frame group in advance, put in the zanjon, (or inject the curing compound of mixing every both sides by the PC plate by the top concrete perfusion again, make its sclerosis back form a body of wall) with the PC plate, so form the one unit body of wall of diaphragm wall, yet the constituted mode of known diaphragm wall has following defective:

One, because the formation of known diaphragm wall, be some warps such as above-mentioned formed interim unit body of wall, form the diaphragm wall that connects and organize with continuous placement, so be to there is no between the unit body of wall in twos element good, that can join combination, making in twos, the joint between the unit body of wall has the gap, because of can't driving fit, just can't reach diaphragm wall integral body due watertightness of comprehensive metope and requirement of strength.

Two, because as: preceding known as described between two unit bodies of wall of formation, because of space that can't fluid-tight engagement caused, its slit forms the flow-guiding mouth of infiltration naturally, therefore, the diaphragm wall that is connected still produces the infiltration situation, danger on causing constructing, and the puzzlement that body of wall leaks between the operating period in the future.

Three, tradition is inserted behind the reinforcing cage mode of concrete perfusion again in zanjon, by reserving grouting mouthful on the reinforcing cage, behind mouthful of one time concrete perfusion of this grouting, treats its concrete setting and forms the sample attitude of unit body of wall; But, the degree of depth is profound because the width of groove is narrow (surpassing more than 10 meters usually), and in being full of the groove of stabilizing solution, be in the milk, reinforcing cage pollutes and influences its grip except being subject to stabilizing solution, also sneak in the concrete easily in the groove because of wall soil, silt particle, and influence concrete strength, and then produce and reduce the strong end and the quality phenomenon that differs.

Four, known PC plate is after groove is gone in transplanting, utilize the consolidation liquid of hybrid modulation to inject groove, fill the both sides that coat the PC plate, after being solidified, it can form combining wall build attitude, still, because no good bindiny mechanism between the PC plate, and only depend on the consolidation liquid combination, ratio in the time of may be because of the hybrid modulation of consolidation liquid, time error and easily changing, thereby cause influencing the intensity of globality structure.

Five, traditional diaphragm wall is by inserting reinforcing cage in the box cut; operation such as concrete perfusion and forming again; but normal because the domain condition is not good, execution control control is bad; and cause the level and smooth degree of vertical precision, concrete wall; and problem such as thickness of protection tier deficiency, wherein, except causing wall crazing and corrosion of steel bar easily; and endanger outside the function of its retaining wall, also increase the construction burden.

Six, construct in being full of the groove of stabilizing solution owing to traditional diaphragm wall, and the one-body molded volume that constitutes of reinforcing cage (or PC plate) is too huge, causes except that constructional difficulties, the body of wall quality also is difficult to control; Therefore, often need decorate diaphragm wall wall coarse or that may chap, not only reduce outside the underground constant volume space, more need repeatedly reinforcing construction, increase manpower, man-hour, costs such as material application on foot in the inboard walling in addition of the body of wall of excavation face.

Summary of the invention

In view of this, the construction of diaphragm wall method and the structure thereof that the purpose of this invention is to provide the folded group of a kind of heavy cunning double wall, it mainly provides in twos and can well join between the unit body of wall, and has the effect water proofing property, and can guarantee reinforcement cover, grip and avoid collapsing hole, double team and sand and sneak into concrete, and influence the body of wall quality; But provide convenient construction management and control in addition easily, and can omit surface finish work; Providing a kind of again can conveniently carry and not be subjected to construction depth to limit.

The object of the present invention is achieved like this: the construction of diaphragm wall method of the folded group of a kind of heavy cunning double wall is characterized in that step is:

One, builds and lead wall;

Two, excavation groove;

Three, verticality is surveyed;

Four, clean baffle plate, and remove the bed mud of groove bottom;

Five, install first double wall formula diaphragm wall unit body of wall, and the unit body of wall of this diaphragm wall is the double wall pattern, symmetrically arranged upper and lower substrate about it is provided with and is; The cage construction group is located between upper and lower substrate, also being provided with some supports connects between upper and lower substrate, be provided with many horizontal bars and support again and be the line setting, between the support of arranging, be installed with the net matrix, between support subtend facing each other, be provided with the steel bar of hanger pattern in addition; Constitute the skeleton of continuous body of wall thus in advance, behind the shut die, filling prize, just can be prefabricated into the diaphragm wall unit body of wall of two wall formulas at two external walls of this cage construction;

Six, the upper and lower unit of the diaphragm wall of winding body of wall splices the unit body of wall of diaphragm wall and inserts in the groove, and from the unit of top body of wall end face penetration concrete;

Seven, return back to the unit construction that second step begins another paragraph again, finish connection until diaphragm wall.

The unit wall body structure of the diaphragm wall of the folded group of a kind of heavy cunning double wall, it is characterized in that: it comprises upper and lower substrate and cage construction, wherein upper and lower substrate goes to upper and lower and is symmetrical arranged, the skeleton group is located between upper and lower substrate, this cage construction is provided with some supports and connects between upper and lower substrate, many again horizontal bars and support are the line setting, set firmly the net matrix between the support of arranging, and are provided with some steel bars in addition between support facing each other is relative.

Described substrate is the T type, and the level board face is made as fish plate, this fish plate intermediate vertical be provided with and add plate, the fish plate plate face at substrate is provided with some through holes that differ in size again.

The upper and lower substrate two ends of described cage construction are respectively equipped with frame, and with corresponding joining of butt joint side of another unit body of wall of diaphragm wall of opposite side.

Row establishes some struts and this strut becomes shaped steel to form by the vertical bar reinforcing bar between the support of described cage construction, an end of this strut is provided with the abutting end in the recessed structural member again, and the other end be provided with the fish plate plate face that stretches out substrate elongated end and with the corresponding joint of upper and lower unit wall body structure.

The abutting end of described strut is to contract in structure and is provided with interior hole slot, and the strut of reinforcing bar formula constitutes abutting end with the continuous device of reinforcing bar.

The end span of described cage construction between the support of relatively erectting established the junction plate of the support that links to each other, and connects at another far-end of the junction plate of support again and establishes a plate.

Between the diaphragm wall two unit bodies of wall of described double wall formula, be provided with coupling mechanism.

Described coupling mechanism is provided with two plate bodys that connect relatively and a retaining is held member, and wherein, plate body articulates with axle, and retaining is held member retaining group in the plate body lateral plates.

Described two plate bodys are two fan doors to establishing.

Described plate body interior plate face place is provided with the grab of symmetry.

Described retaining is held member and is made of hack lever and tightening latch, and this tightening latch is crossed in the grab of plate body, connects with grab between upper and lower again hack lever.

Mitered adds steel bar between the net matrix of described cage construction or between support.

Described grouting operation is spliced the frame group when finishing a stage at body of wall, only at bottom concrete perfusion partly, then repeats construction again, after diaphragm wall is finished by unit body of wall winding, and the concrete perfusion simultaneously from the top again.

After between described upper and lower block construction body of wall waterstop being set, use the spiro connecting element winding again.

Need to lay waterstop between the diaphragm wall body of wall in described forward and backward stage, behind the excavation of excavation both sides, wear the screw of the cage construction of group two unit bodies of wall again with spiro connecting element again, the combination that is spirally connected of two bodies of wall.

Description of drawings

Fig. 1 is the construction process figure of exemplary embodiments of the present invention;

Fig. 2 is an exemplary embodiments of the present invention unit wall body structure exploded view;

Fig. 3 is an exemplary embodiments of the present invention unit wall body structure constitutional diagram;

Fig. 4 is the two wall formula unit wall body structure figure of exemplary embodiments of the present invention;

Fig. 5 is another structure kenel winding figure of exemplary embodiments coupling mechanism of the present invention and edge frame;

Fig. 6 is the assembly bonding part sectional drawing of the upper and lower unit of exemplary embodiments of the present invention body of wall;

Fig. 7 is provided with the state diagram of ribbing steel bar between exemplary embodiments double wall of the present invention;

Fig. 8 holds member state diagram in succession for the retaining of exemplary embodiments coupling mechanism of the present invention;

Fig. 9 washes user mode figure open for the plate body of exemplary embodiments coupling mechanism of the present invention;

Figure 10 finishes diaphragm wall and basement floor for exemplary embodiments of the present invention and connects and establish state diagram;

Among the figure: upper and lower substrate 1 fish plate 10 through holes 100 ribbed panels 11 scissors steel parts 111 skeleton structures 2 frames 20 screws 7200 supports 21 struts 22 abutting ends 220 elongated ends 221 net matrixs 23 horizontal bars 24 connecting plates 25 plates 26 steel bars 27 dividing plates 28 ribbing steel bars 29 overlap joint steel bars 3 grooves 4 grooves 5 coupling mechanisms 6 plate bodys 60 grabs 601 gears are held member 61 hack levers 610 tightening latches 611 bodies of wall 7 and are hung and carry a hole 8 and lead wall A groove B intrusion pipe H pivot connecting element T shackles S load bar I spiro connecting element N waterstop P

The specific embodiment

The present invention is further described below in conjunction with drawings and Examples.

As shown in Figure 1, the implementation step of present embodiment and method are as follows:

One, builds and lead wall A: at first construct the precalculated position of diaphragm wall, dig if groove and be provided with and lead wall A at needs.

Two, excavation groove B: utilization excavates machine self-conductance wall A and vertically down deep-cuts, and native stone is grabbed out formation one groove B with the material handling device tool, it is formed for putting the straight dark formula groove B that diaphragm wall uses, collapse for fear of groove B again, when excavation groove B, need and inject stabilizing solution (being muddy water) in groove B, for the upper strata of gutter ditch wall.

Three, verticality is surveyed: B is excavated to desired depth when groove, survey (can utilize ultrasonic equipment) with vertical probe downwards with groove B, survey the verticality (view and emulate simultaneously whether the metope that digs is smooth, situations such as the whether avalanche of exploration metope, depression) of groove B and wall thereof in advance, with the precision of effective control body of wall 7 and can be beneficial to constructing of connecting wall.

Four, remove bed mud and clean end plate: promptly clean end plate (or baffle plate, or 7 of unit bodies of wall have the plate body 60 of coupling mechanism 6), and the bed mud of removing groove B bottom in the stage unit.

Five, install the diaphragm wall unit body of wall 7 of first two-layer equation: digging the exit or entrance of a clitch above the groove light B that establishes, first unit body of wall 7 of handling at first, the unit body of wall 7 of this diaphragm wall system of casting in advance is double wall formula kenel, in ground (factory, the processing place) casting system in advance forms, and can make appropriate waterproofing work (as going up earlier marine glue) earlier at its outer wall, the structure of the unit body of wall 7 of this double wall formula (shown in Fig. 2-4) is provided with: on two groups, infrabasal plate 1, can be set as the steel plate of T type shape or constitute by shaped steel, setting is symmetry storing up and down, the tabular fish plate 10 that is made as of its level, the perpendicular in addition ribbed panel 11 that is made as, default some through holes that differ in size 100 on the plate face of the fish plate 10 of substrate 1, look its demand again to the grasping force of cement, in addition last, on the vertical panel face of infrabasal plate 1, be provided with some shearing steel parts 111;

One cage construction is located between the upper and lower substrate 1 by being arranged on ribbed panel 11 relative inner faces for 2 groups, and be provided with frame 20 in cage construction 2 both sides, this frame 20 can be made as back curved platysome or be made of shaped steel, or can be concave-convex surface in opposite directions symmetrical limit the buttcover plate face (as shown in Figure 5, the butt joint kenel of another shape of lateral frame board), on the plate face of frame 20, preset some screws 200 again; 20 of frames are then arranged and are provided with some supports 21, this support 21 can be by angle steel, shaped steel or reinforcing bar constitute, required at 21 TV structure bodies of two two stands, and row are established some struts 22 again, this strut 22 can be by upright bar reinforcing bar or angle steel, shaped steel forms, and strut 22 1 bottoms in structure, contract be provided be in hole slot be made as abutting end 220 (as shown in Figure 6, wherein be strut 22 users with the reinforcing bar, can utilize the continuous device of reinforcing bar to connect the abutting end 220 of group at strut 22, can supply last, the joint of lower unit body of wall 7 is more convenient rapidly, and it is firm), the fish plate 10 plate faces that the other end then protrudes out substrate 1 are made as elongated end 221 (as Fig. 3, shown in 4), can keep supplying, lower unit structure wall 7 correspondences are convenient to engage, more connect group on 21 on support again and be installed with net transverse sheet 23, use for internal mold, 20 of frames in cage construction 2 are provided with many horizontal bars 24 that are horizontally set in addition, this horizontal bar 24 forms affixed with support 21, secondly, the end that the support of erectting in subtend is 21 is provided with junction plate 25 cross-over connections that link to each other subtend two supports 21, junction plate 25 another far-ends of this support 21 then connect establishes a plate 26 (as Fig. 2, shown in 6), on two diaphragm walls, lower unit body of wall 7 can utilize the junction plate 25 of the plate 26 corresponding next unit bodies of wall 7 of a unit body of wall 7 to fit and dock, moreover, relative inner face at two two stands 21 and frame 20, and be installed with the steel bar 27 that the truss pattern maybe can be ladder type, one of cage construction 2 routine frame 20 is (near having a side that connects structure mechanism 6 in addition, about cage construction 2 by nearly 2/3rds places of a side) the appropriate position, be provided with the dividing plate 28 that mesh flake constitutes tabular pattern in 2 of cage constructions and group, this dividing plate 28 also can be installed on the steel bar 27 of 21 on support of coupling mechanism 6 one sides, in addition at 23 of the net matrixs of cage construction 2 (or 22 oblique of support 21 or struts), the needs of visual element structure wall 7 its rib degree, other is provided with ribbing steel bar 29 (as shown in Figure 7) mitered of some truss patterns.

Some overlap joint steel bars 2 shown in Fig. 1,4, are to connect group by cage construction 2 or its horizontal bar 24 places, and extend to body of wall one side of basement, supply the bar splicing of the building structure of connecting wall and basement to use; Overlap joint steel bar 3 can be and bends in advance in reserving groove or be various steel bar connector.

Again, in order to be beneficial to underground connecting wall and basement structure body good combination, when frame group template, need the position of corresponding overlap joint steel bar 3 to reserve groove 4 (as shown in Figure 4), in addition, on being beneficial to, the intersegmental joint of lower unit body of wall 7 and front and back team, and last, on the infrabasal plate 1, following fish plate 10 plate faces and frame 20 have a side deckle board face of screw 200, the corresponding punch position place of winding mutually, reserve for spiro connecting element N and can wear group screw 200 and through hole 100 groove 5 (as shown in Figure 4) with affixed two unit bodies of wall 7, and above cage construction 2 appropriate position, need to reserve several hanging and carry hole 8, the double wall structure of these hole 8 break-through bodies of wall 7 is (as Fig. 3, shown in 4).

Diaphragm wall block construction body skeleton through above formation, behind 2 liang of lateral surfaces difference of cage construction frame group external mold of double wall, make 23 of cope match-plate pattern and net matrixs form the concrete perfusion interval, then can go in the metope space by the grout hole place that reserves (be upper substrate 1 than large through-hole 100) concrete perfusion, treat to pull down exterior sheathing after the concrete setting, can form the diaphragm wall unit body of wall 7 of double wall formula.

Moreover, because the width of groove B need be borrowed can ccontaining group of unit body of wall 7, so working as with the wall of groove B, unit body of wall 7 stays clearance, at this moment, can be from the corresponding group in advance some intrusion pipe H (shown in Fig. 3,4) of upper substrate 1 end face several through holes 100 places in the outer part of unit body of wall 7, in order to injecting mud, make it ooze out double wall two outer side surfaces through intrusion pipe H, allow between unit body of wall 7 and groove B metope the residue space fill up concordant and body of wall 7 close and firm in groove B is located.

Secondly, between two walls of the block construction body of diaphragm wall in it then side subtend end face pivot group coupling mechanism 6 is arranged (as Fig. 2,3,5, shown in 8 and 9), this coupling mechanism 6 mainly is provided with the plate body 60 that two subtends are joined, be fixed in the double wall of diaphragm wall block construction body of wall 7 and the inboard ora terminalis of subtend in the two side ends respectively of two plate bodys 60 with pivot connecting element T pivot group, the other end of two plate bodys 60 is with the articulated section be axle and free to rotate, make two plate bodys 60 to group, fan door-plates to establishing kenel as two, be provided with the grab 601 of symmetry again at the some appropriate locations of plate face of plate body 60, one retaining is held member 61 and is striden group in two plate bodys, 60 grabs 601, and the retaining group is at the interior plate face of plate body 60, it is provided with hack lever 610 and tightening latch 611 is formed shape like ladder, so utilize tightening latch 611 to stride frame in grab 601, the free end retaining of plate body 60 is held and can be fixed tentatively the position, formed coupling mechanism 6 is at the side of block construction body of wall 7, and the effect of formation end baffle is (as Fig. 4, shown in 5).

Six, connect on the group diaphragm wall, lower unit structure wall 7: when the unit body of wall 7 of the double wall formula diaphragm wall of first module hangs slowly in excavating groove B, it with shaped steel again year hole 8 of hanging that load bar I passes body of wall 7 tops, so that these unit body of wall 7 supports are located at the exit or entrance of a clitch of groove B, and the unit body of wall 7 of getting another double wall formula is folded group last, at first last, the retaining of the coupling mechanism 6 in the lower unit body of wall 7 is held member 61 and is connected (as shown in Figure 8) with shackles S, secondly, make two folded 7 of the unit bodies of wall of organizing be positioned at the unit body of wall 7 of below, go into unit, top body of wall 7 with elongated end 221 insert groups of its strut 22, in the abutting end 220 of its strut 22 (as shown in Figure 6), and the plate 26 of unit, top body of wall 7 is fitted with the junction plate of unit, below body of wall 7 25, and 7 of two unit bodies of wall need be laid a waterstop P (as shown in Figure 6) between the plate face of butt joint substrate 1, and in the order, groove 5 that the unit body of wall of following butt joint is 7 and the through hole 100 that wherein Gong is spirally connected align each other, utilize spiro connecting element N to pass two unit bodies of wall 7 again, the through hole 100 of substrate 1 is screw lock winding fixed bit in addition, after 7 windings of two unit bodies of wall are finished, just earlier two unit bodies of wall of stacked combination are sling, again load bar I is withdrawn, insert among the groove B so that connect the unit body of wall 7 of group, means reach (unit body of wall 7 tops that promptly folded group goes up most have been connected to the exit or entrance of a clitch, groove B top) after the desired depth so that some unit body of wall 7 assembling is engaged according to this, can push up and penetration concrete from the unit of top body of wall 7, relend the dividing plate 28 that has netted pattern or tabular pattern between body of wall 7 double walls and separate effect, the concrete spouting that makes injection is to dividing plate 28 positions (that is about dot element integral body 2/3rds), and by being embedded in intrusion pipe H in unit body of wall 7 wall surfaces, mud is poured in construction slit between body of wall 7 and soil layer, so, finish the sessions of the diaphragm wall of first paragraph.

Seven, return back to second step and begin the unit construction of another paragraph again, again when the diaphragm wall block construction body of wall 7 of second stage hangs, before making, the body of wall 7 of after-stage is convenient to assembling and is fitted tightly winding really, can roller be set at the top edge of 7 of front and back section bodies of wall, borrow the body of wall 7 of stream wheel guiding the latter half, before making, the back forms body of wall 7 winding therebetween of two-stage, can reduce resistance, and then can allow adaptation better, and it is preceding, 7 of after-stage bodies of wall also need add waterstop P, waterproof effect (shown in Fig. 5-7) with effective raising joint, so when 7 windings of second stage body of wall finish and with 7 applyings of leading portion body of wall after, just can be with the coupling mechanism 6 of 7 of front and back section bodies of wall, 61 pull-ups of retaining structure spare, tightening latch 61 is broken away to be held the retaining of plate body 60, again by the grouting of the top between two walls of the cage construction 2 of body of wall 7, so having the concrete perfusion of constructing simultaneously from leading portion body of wall 7 side segment (about 1/3rd) to 2/3rds of back one section body of wall 7 joins, and it is preceding, the coupling mechanism 6 that the back segment body of wall is 7, when concrete perfusion, borrow concrete weight impulse force just can wash the plate body 60 of similar two fan door-sheet butt joints open (as shown in Figure 9), so, just the concrete structure unanimity of two stage diaphragm walls before and after can making, and the subtend plate body 60 of this coupling mechanism 6 is turning again and stride group preceding, 7 of after-stage bodies of wall, make to form between diaphragm wall and connect steelframe, before making, the structure that the after-stage body of wall is 7 has joint, and can improve the intensity of structure, and the body of wall 7 in stage can connect and organizes more driving fit before and after allowing, and improve the waterproof effect.

So, implement according to above-mentioned step repetitiousness, block construction wall until diaphragm wall becomes connection to take group successively, just can form the configuration of a diaphragm wall, then can excavate operation, after the ground digging is dug and has been established, before passing respectively with spiro connecting element N again, each body of wall 7 that after-stage joins, screw 200 on frame 20 its plate faces that join therebetween, with the body of wall 7 that will be connected again screw lock fix, so, again with the front and back side screw lock winding in addition of each body of wall 7, utilize overlap joint steel bar 3 in the chase 5 be preset at the interior wall face portion to pull out again again and stretch to basement wall direction, just can utilize this overlap joint steel bar 3 and ground reinforcing bar to overlap steel mutually and connect 3 and overlap mutually, form one state (as shown in figure 10) for conspiring to create to be fixedly connected with the ground reinforcing bar.

Place the double wall bottom of the unit body of wall 7 of the bottom to can be flat or sharp limit kenel, but need not establish the groove 4 of plate 26 and inboard metope.

In addition, when implementing the grouting operation, also can splice the frame group when finishing a stage at body of wall 7, only bottom partly concrete perfusion as a stage, then repeat construction again, after diaphragm wall was finished by 1 winding of unit body of wall, from top while concrete perfusion, then the concrete in the middle of the double wall also can form the integral body with coherence again.

Advantage of the present invention and effect are as follows:

One, adopts the combined type form of construction work; it is the precasting double wall form that suitability for industrialized production is used in the outside in the diaphragm wall; pars intermedia is respectively with the construction of terrain concrete perfusion; so; construction method topping deficiency, the reinforcing bar grip that can borrow high-quality precasting double wall to improve known reinforcing cage (or PC plate) be not good; and defective such as wall crazing, corrosion of steel bar; in addition; concrete perfusion between double wall; but body of wall of forward and backward stage of cross-over connection forms uniformity, also can improve the problem of joint infiltration between traditional integrated wall element.

Two, lifting precasting double wall formula diaphragm wall unit body of wall in the excavation groove, can utilize double wall opposing lateral earth pressure, with avoid advancing to bury in the prior art method insert reinforcing cage and concrete perfusion consuming time of a specified duration excessively, resistance of soil descends, collapse in the accidents such as hole and double team and produce, more can improve the interior silt particle of groove and sneak into concrete, and influence the defective of concrete quality.

Three, body of wall end face in unit is to have the plate body of pivot group door leaf template formula, and utilize retaining to hold the coupling mechanism of member stopping object displacement as end plate, when retaining is held member and is withdrawn no longer the block resistance plate body, when concrete perfusion, borrow concrete weight impulse force, just can open by the plate body that door leaf is board-like, but more can utilize tabular plate body conduct of door leaf and the continued access steelframe between forward and backward stage unit wall, and then it is discontinuous to improve in twos between the unit body of wall tensile material.

Four, between upper and lower unit body of wall with the fixing combination of splicing mutually that is spirally connected, do not make construction depth more limited and also improve traditional handling reinforcing cage and bury the PC plate underground, because of it is all integrated structure, its length, highly be subject to the restriction of haulage device and construction space.

Five, casting is in advance made, splicing is provided with the groove that inserts diaphragm wall again, and this specification of structure unanimity of each unit can effectively be grasped the wall precision.

Six, the diaphragm wall unit body of wall light precasting of double wall formula is standby, and its metope also can be made water-repellent paint earlier and handle, and in twos between the unit body of wall all group be provided with water blocking tape, make the integral body of diaphragm wall have waterproof, antiseepage effect really.

Seven, reserve the overlap joint steel bar, be beneficial to the winding of diaphragm wall and ground reinforcing bar, and then strengthen the intensity between diaphragm wall and foundation structure.

Eight, again for the chase of ccontaining reservation overlap joint steel bar, also can establish the water band in this chase, except that can making the effect that grasps, firmly combines between ground metope and diaphragm wall, also can avoid the puzzlement of mating face infiltration.

Nine, the diaphragm wall unit wall body structure of double wall formula, (places such as workshop, processing place) precasting manufacturing, product mass-energy are fully managed control, reliability height on the ground, and need not surdimensionnement, and more traditional construction method safety, economic and quick.

Claims

1, the construction of diaphragm wall method of the folded group of a kind of heavy cunning double wall is characterized in that step is:

One, builds and lead wall;

Two, excavation groove;

Three, verticality is surveyed;

Four, clean baffle plate, and remove the bed mud of groove bottom;

2, the unit wall body structure of the diaphragm wall of the folded group of a kind of heavy cunning double wall, it is characterized in that: it comprises upper and lower substrate and cage construction, wherein upper and lower substrate goes to upper and lower and is symmetrical arranged, the skeleton group is located between upper and lower substrate, this cage construction is provided with some supports and connects between upper and lower substrate, many again horizontal bars and support are the line setting, set firmly the net matrix between the support of arranging, and are provided with some steel bars in addition between support facing each other is relative.

3, by the folded unit wall body structure of organizing the diaphragm wall of double wall of the described heavy cunning of claim 2, it is characterized in that: described substrate is the T type, and the level board face is made as fish plate, this fish plate intermediate vertical be provided with and add plate, the fish plate plate face at substrate is provided with some through holes that differ in size again.

4, by the folded unit wall body structure of organizing the diaphragm wall of double wall of the described heavy cunning of claim 2, it is characterized in that: the upper and lower substrate two ends of described cage construction are respectively equipped with frame, and with corresponding joining of butt joint side of another unit body of wall of diaphragm wall of opposite side.

5, by the folded unit wall body structure of organizing the diaphragm wall of double wall of the described heavy cunning of claim 2, it is characterized in that: row establishes some struts and this strut becomes shaped steel to form by the vertical bar reinforcing bar between the support of described cage construction, an end of this strut is provided with the abutting end in the recessed structural member again, and the other end be provided with the fish plate plate face that stretches out substrate elongated end and with the corresponding joint of upper and lower unit wall body structure.

6, by the unit wall body structure of the diaphragm wall of the folded group of the described heavy cunning of claim 5 double wall, it is characterized in that: the abutting end of described strut is to contract in structure and is provided with interior hole slot, and the strut of reinforcing bar formula constitutes abutting end with the continuous device of reinforcing bar.

7, by the folded unit wall body structure of organizing the diaphragm wall of double wall of the described heavy cunning of claim 2, it is characterized in that: the end span of described cage construction between the support of relatively erectting established the junction plate of the support that links to each other, and connects at another far-end of the junction plate of support again and establishes a plate.

8, by the construction of diaphragm wall method of the folded group of the described heavy cunning of claim 1 double wall, it is characterized in that: between the diaphragm wall two unit bodies of wall of described double wall formula, be provided with coupling mechanism.

9, by the construction of diaphragm wall method of the folded group of the described heavy cunning of claim 8 double wall, it is characterized in that: described coupling mechanism is provided with two plate bodys that connect relatively and a retaining is held member, and wherein, plate body articulates with axle, and retaining is held member retaining group in the plate body lateral plates.

10, by the construction of diaphragm wall method of the folded group of the described heavy cunning of claim 9 double wall, it is characterized in that: described two plate bodys are two fan doors to establishing.

11, by the construction of diaphragm wall method of the folded group of the described heavy cunning of claim 9 double wall, it is characterized in that: described plate body interior plate face place is provided with the grab of symmetry.

12, by the construction of diaphragm wall method of claim 9, the folded group of 11 described heavy cunnings double wall, it is characterized in that: described retaining is held member and is made of hack lever and tightening latch, and this tightening latch is crossed in the grab of plate body, connects with grab between upper and lower again hack lever.

13, by the construction of diaphragm wall method of the folded group of the described heavy cunning of claim 1 double wall, it is characterized in that: mitered adds steel bar between the net matrix of described cage construction or between support.

14, by the folded construction of diaphragm wall method of organizing double wall of the described heavy cunning of claim 1, it is characterized in that: described grouting operation is spliced the frame group when finishing a stage at body of wall, only at bottom part concrete perfusion, then repeat construction again, after diaphragm wall is finished by unit body of wall winding, again from top while concrete perfusion.

15, by the construction of diaphragm wall method of the folded group of the described heavy cunning of claim 1 double wall, it is characterized in that: after between described upper and lower block construction body of wall waterstop being set, use the spiro connecting element winding again.

16, by the folded construction of diaphragm wall method of organizing double wall of the described heavy cunning of claim 1, it is characterized in that: need to lay waterstop between the diaphragm wall body of wall in described forward and backward stage, again behind the excavation of excavation both sides, wear the screw of cage construction of group two unit bodies of wall again with spiro connecting element, the combination that is spirally connected of two bodies of wall.