CN115434302A - Construction method of prefabricated diaphragm wall - Google Patents
Construction method of prefabricated diaphragm wall Download PDFInfo
- Publication number
- CN115434302A CN115434302A CN202211214946.9A CN202211214946A CN115434302A CN 115434302 A CN115434302 A CN 115434302A CN 202211214946 A CN202211214946 A CN 202211214946A CN 115434302 A CN115434302 A CN 115434302A
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- wall
- prefabricated wall
- bricks
- annular
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 82
- 239000011449 brick Substances 0.000 claims abstract description 161
- 238000004873 anchoring Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims description 28
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000011083 cement mortar Substances 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011456 concrete brick Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
- E02D5/105—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete of prestressed concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/10—Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
- E02D5/12—Locking forms; Edge joints; Pile crossings; Branch pieces
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/14—Sealing joints between adjacent sheet piles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention provides a construction method of a prefabricated diaphragm wall, which has the technical scheme that the construction method of the prefabricated diaphragm wall comprises the following construction methods: an annular groove arranged to receive an annular groundwall; sequentially hoisting prefabricated wall bricks in the annular groove, grouting in a gap between every two adjacent prefabricated wall bricks to form an anchoring layer, wherein the height of the prefabricated wall brick is matched with the depth of the annular groove, and a plurality of prefabricated wall bricks are connected end to end through the anchoring layer to form an annular ground connection wall; filling a backfill layer into a gap between the annular diaphragm wall and the annular groove to complete diaphragm wall construction; this scheme can realize that prefabricated ground links the wall and avoids splicing in the direction of height to avoid producing the seam, improve the stagnant water performance in the direction of height, improve the bulk strength that prefabricated ground links the wall simultaneously.
Description
Technical Field
The invention relates to the field of prefabricated diaphragm wall construction, in particular to a construction method of a prefabricated diaphragm wall.
Background
The gravity type anchorage of the suspension bridge is usually buried underground, the excavation of an anchorage foundation pit needs to use a diaphragm wall structure for supporting the foundation pit, and along with the increasing span of the suspension bridge, the anchorage foundation pit is deeper and deeper, and the requirement on the bearing capacity of the diaphragm wall is higher and higher.
The conventional construction method of the prefabricated underground diaphragm wall comprises the steps that a first crane is used for hoisting a first prefabricated wall body, then a second crane is used for stacking other prefabricated wall bodies right above the first prefabricated wall body from bottom to top, a plurality of prefabricated wall bodies are connected into the prefabricated underground diaphragm wall with an integral structure, the first crane hoists the prefabricated underground diaphragm wall and puts the prefabricated underground diaphragm wall into a groove, in the construction process, the prefabricated underground diaphragm wall is segmented in the height direction, so that the prefabricated underground diaphragm wall is too many in seams to be beneficial to water stop, in addition, the prestress treatment in the process is on-site tensioning, and the construction quality is not easy to control.
Disclosure of Invention
The invention aims to provide a construction method of a prefabricated diaphragm wall, which can avoid splicing the prefabricated diaphragm wall in the height direction, thereby avoiding generating seams, improving the water stopping performance in the height direction and simultaneously improving the overall strength of the prefabricated diaphragm wall.
In order to achieve the purpose, the invention provides the following technical scheme:
the construction method of the prefabricated diaphragm wall comprises the following construction methods:
an annular groove arranged to receive an annular groundwall;
sequentially hoisting prefabricated wall bricks in the annular groove, grouting in a gap between every two adjacent prefabricated wall bricks to form an anchoring layer, wherein the height of the prefabricated wall brick is matched with the depth of the annular groove, and a plurality of prefabricated wall bricks are connected end to end through the anchoring layer to form an annular ground connection wall;
and filling a backfill layer into a gap between the annular diaphragm wall and the annular groove to finish the diaphragm wall construction.
And further setting, sequentially hoisting the prefabricated wall bricks in the annular groove, and grouting in a gap between the adjacent prefabricated wall bricks to form an anchoring layer, wherein the method further comprises the following construction steps:
and the prefabricated wall bricks are hung in the annular groove and grouted in the gap between the adjacent prefabricated wall bricks to form an anchoring layer for synchronous construction.
The method is further provided with the following construction steps that when the prefabricated wall bricks are hung in the annular groove and grouting is performed in gaps between the adjacent prefabricated wall bricks to form an anchoring layer for synchronous construction, the method also comprises the following steps:
and after the three prefabricated wall bricks are hoisted, grouting is started in gaps between the adjacent prefabricated wall bricks.
Further setting, before the prefabricated wall bricks are sequentially hung in the annular groove, the method also comprises the following construction steps:
and manufacturing a plurality of prefabricated wall bricks with the same specification and size, and placing the prefabricated wall bricks which are manufactured at a preset hoisting position.
Further setting, when a plurality of prefabricated wall bricks with the same specification and size are manufactured, the method further comprises the following construction steps:
binding reinforcing steel bars, erecting a template, pouring concrete into the template, solidifying the concrete and the reinforcing steel bars to form a prefabricated wall brick, and demolding after the prefabricated wall brick is cured to meet the strength requirement.
Further setting, when concrete is poured into the formwork and is fixedly connected with the reinforcing steel bars to form the prefabricated wall bricks, the construction method further comprises the following construction steps:
and the reinforcing steel bars penetrate through the template, stretch-draw the reinforcing steel bars, and then pour the concrete into the template.
It is further provided that, when the annular groove for accommodating the annular diaphragm wall is arranged, the following construction steps are also included:
dig and establish a plurality of groove sections, the groove section communicates each other and forms the slot.
Further, after the backfill layer is filled into the gap between the annular diaphragm wall and the annular groove, the construction method further comprises the following construction steps:
and vibrating the backfill layer until the backfill layer is in a compact state.
Further setting, the material of anchor layer is cement mortar, the material of backfill layer is sand soil.
Further, the prefabricated wall brick is of a strip-shaped structure; the prefabricated wall brick is internally provided with a cavity which penetrates through two ends along the height direction and a plurality of steel bar pieces which are arranged between the cavity and the outer side wall of the brick body.
Compared with the prior art, the scheme of the invention has the following advantages:
1. the invention relates to a construction method of a prefabricated ground connecting wall, which comprises the steps of sequentially hanging prefabricated wall bricks with the heights matched with the depths of annular grooves in a brick changing groove, avoiding multi-stage overlapping and splicing in the height direction, wherein the concrete connection mode of adjacent prefabricated wall bricks is that slurry is injected into gaps between the adjacent prefabricated wall bricks, the slurry is solidified to form an anchoring layer, the anchoring layer fills gaps between the adjacent prefabricated wall bricks, the adjacent prefabricated wall walls are connected, a plurality of prefabricated wall bricks are connected end to end through the anchoring layer to form the annular ground connecting wall, the annular ground connecting wall has good water stopping performance and connection strength in the height direction and the horizontal direction, and finally, a backfill layer is filled between the inner side wall of the annular ground connecting wall and one side wall of the groove, between the outer side wall of the annular ground connecting wall and the other side wall of the groove, and abuts against the annular ground connecting wall in the annular grooves by the backfill layer to complete the construction of the ground connecting wall.
2. According to the construction method of the prefabricated underground diaphragm wall, the hoisting of the prefabricated wall bricks and the grouting into the gaps between the adjacent wall bricks are synchronously carried out, the construction efficiency is improved, the prefabricated wall bricks are connected into segments through the anchoring layers after being hoisted into the annular groove, the whole prefabricated wall brick has high mobility resistance, the influence of newly hoisted prefabricated wall bricks on the prefabricated wall bricks in the groove is reduced when the prefabricated wall bricks are hoisted and placed subsequently, and the operation precision and the construction quality are improved.
3. In the construction method of the prefabricated underground diaphragm wall, three prefabricated wall bricks are hung in the annular groove, gaps are formed between the middle prefabricated wall brick and the prefabricated wall bricks on the left side and the right side, the prefabricated wall brick on the right side abuts against the middle prefabricated wall brick during grouting of the gap on the left side to play a positioning role, and similarly, the prefabricated wall brick on the left side positions the middle prefabricated wall brick during grouting of the gap on the right side.
4. According to the construction method of the prefabricated diaphragm wall, the prefabricated wall bricks are poured in batches in advance, so that the quality control quality and the operation efficiency of diaphragm wall construction are improved, the prefabricated wall bricks are preferably poured in batches in a factory, the prefabricated wall bricks are transported to a storage point of a construction site after being processed into finished products, and the prefabricated wall bricks are cured and formed in the factory after being poured in the factory.
5. In the construction method of the prefabricated ground connection wall, the steel bar pieces are embedded in the prefabricated wall bricks in the pouring process, the steel bar pieces and the concrete form the prefabricated wall bricks of the annular ground connection wall together, the strength of the single prefabricated wall brick is improved, and the prefabricated ground connection wall formed by the plurality of prefabricated wall bricks has high bearing capacity.
6. The construction method of the prefabricated diaphragm wall adopts a pretensioning method to carry out prestress treatment on a steel bar piece, the steel bar piece is arranged in a template, two ends of the steel bar piece respectively penetrate through two sides of the template, the steel bar piece is tensioned by using construction tools such as a jack and the like, concrete is poured into the template in the continuous tensioning process, after the concrete is solidified and formed, part of the steel bar piece outside the template is cut, and finally demoulding is carried out to finish the processing of the prefabricated wall brick.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart illustrating a construction method of a prefabricated diaphragm wall according to an embodiment of the present invention;
FIG. 2 is a sectional view in elevation of prefabricated wall tiles in an embodiment of the present invention;
FIG. 3 is a schematic illustration of the splicing of adjacent prefabricated wall tiles in an embodiment of the present invention;
FIG. 4 is a top view of an annular groundwall in an embodiment of the invention;
fig. 5 is a front view of an annular groundwall in one embodiment of the invention.
Reference numerals are as follows: 1. prefabricating wall bricks; 11. a cavity; 12. a reinforcement member; 2. a backfill layer; 3. an anchoring layer; 4. the annular ground is wall even.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As shown in fig. 1 in combination with fig. 4 and 5, the invention provides a construction method of a prefabricated diaphragm wall, which comprises the following construction methods:
an annular groove arranged to receive the annular diaphragm wall 4;
sequentially hanging the prefabricated wall bricks 1 in the annular groove, grouting in gaps between the adjacent prefabricated wall bricks 1 to form an anchoring layer 3, matching the height of the prefabricated wall with the depth of the annular groove, and connecting a plurality of prefabricated wall bricks 1 end to end through the anchoring layer 3 to form an annular ground connecting wall 4;
and filling the backfill layer 2 into the gap between the annular diaphragm wall 4 and the annular groove to finish the diaphragm wall construction.
The construction method has the implementation effects that the prefabricated wall bricks 1 with the heights matched with the depths of the annular grooves are sequentially hung in the brick changing grooves, multi-stage overlapping and splicing in the height direction are avoided, the concrete connection mode of the adjacent prefabricated wall bricks 1 is that slurry is injected into gaps between the adjacent prefabricated wall bricks 1, slurry is solidified to form an anchoring layer 3, the anchoring layer 3 fills the gaps between the adjacent prefabricated wall bricks 1 and connects the adjacent prefabricated wall, a plurality of wall bricks are connected end to end through the anchoring layer 3 to form the annular grounding wall 4, the annular grounding wall 4 has good water stopping performance and connection strength in the height direction and the horizontal direction, and finally, the backfill layer 2 is filled between the inner side wall of the annular grounding wall 4 and one side wall of the groove and between the outer side wall and the other side wall of the groove, and the backfill layer 2 tightly supports the annular grounding wall 4 in the annular grooves to complete the construction of the grounding wall.
In the concrete construction, when the prefabricated wall bricks 1 are sequentially lifted and placed in the annular groove and the anchoring layer 3 is formed by grouting in the gap between the adjacent prefabricated wall bricks 1, the construction method further comprises the following construction steps:
and (3) the prefabricated wall bricks 1 are hung in the annular groove and are constructed synchronously with the gaps between the adjacent prefabricated wall bricks 1 in a grouting manner to form the anchoring layers 3.
The hoisting of the prefabricated wall bricks 1 and the grouting into the gaps between the adjacent wall bricks are synchronously carried out, the construction efficiency is improved, the prefabricated wall bricks 1 are connected into segments through the anchoring layers 3 after being hoisted into the annular grooves, the whole prefabricated wall bricks 1 have high mobility resistance, the influence of the newly hoisted prefabricated wall bricks 1 on the prefabricated wall bricks 1 in the grooves is reduced when the prefabricated wall bricks 1 are subsequently hoisted, and the operation precision and the construction quality are improved.
In the concrete operation, when the precast wall bricks 1 are hung in the annular groove and the anchoring layer 3 is formed in the gap between the adjacent precast wall bricks 1 by grouting, the method also comprises the following construction steps:
after the three prefabricated wall bricks 1 are hoisted, grouting is started in gaps between the adjacent prefabricated wall bricks 1.
Three prefabricated wall brick 1 is put in the annular groove to the hoist, produces the gap between prefabricated wall brick 1 of middle prefabricated wall brick 1 and the left and right sides 1, and during the grouting of left side gap, prefabricated wall brick 1 on right side supports prefabricated wall brick 1 in the middle of tightly, plays the positioning action, and in the same way, during the grouting of right side gap, prefabricated wall brick 1 in left side is fixed a position prefabricated wall brick 1 in the middle.
Further improvement, before the prefabricated wall bricks 1 are sequentially hung in the annular groove, the construction method also comprises the following construction steps:
and manufacturing a plurality of wall bricks with the same specification and size, and placing the manufactured wall bricks at a preset hoisting position.
The prefabricated wall brick 1 is poured in a batch customized mode in advance, the quality control quality and the operation efficiency of the diaphragm wall construction are improved, the prefabricated wall brick 1 is preferably poured in a factory in a large batch mode, a finished product is processed and then conveyed to a storage point of a construction site, and after the prefabricated wall brick 1 is poured in the factory, maintenance molding is carried out in the factory, so that the finished product quality is better, the structural defects are reduced, and the comprehensive strength is improved compared with the prefabricated wall brick 1 which is poured and manufactured in the construction site.
The processing process of the prefabricated wall brick 1 is that when a plurality of wall bricks with the same specification and size are manufactured, the method further comprises the following construction steps:
binding reinforcing steel bars, erecting a template, pouring concrete into the template, fixedly connecting the concrete and the reinforcing steel bars to form a wall brick, and demolding after the wall brick is cured to meet the strength requirement.
Preferably, when concrete is poured into the formwork and is solidified with the reinforcing steel bars to form the wall bricks, the construction method further comprises the following construction steps:
and (4) the reinforcing steel bars penetrate through the template, the reinforcing steel bars are tensioned, and then the concrete is poured into the template.
The prefabricated wall brick 1 adopts a pre-tensioning method to carry out prestress treatment on a steel bar piece 12, the steel bar piece 12 is arranged in a template, two ends of the steel bar piece 12 respectively penetrate through two sides of the template, the steel bar piece 12 is tensioned by using construction tools such as a jack and the like, concrete is poured into the template in the continuous tensioning process, after the concrete is solidified and formed, part of the steel bar piece 12 outside the template is cut, and finally demoulding is carried out to finish the processing of the prefabricated wall brick 1.
In addition, the reinforcing member 12 may be pre-stressed by post-tensioning, which is not limited in this embodiment.
In practice, when arranging the annular groove for accommodating the annular diaphragm wall 4, the following construction steps are also included:
a plurality of groove sections are dug, and the groove sections are communicated with each other to form the annular groove.
The plurality of groove sections are dug and communicated with each other, so that concentrated stress is avoided, and collapse of the annular groove in the digging process is prevented.
Further optimizing, when digging a plurality of groove sections, the construction method also comprises the following construction steps:
and performing slurry wall protection treatment on the side wall of the dug groove section.
The inner wall strength of the annular groove is improved in a slurry wall protection mode, and collapse of the formed annular groove is avoided.
Preferably, after the backfill layer 2 is filled into the gap between the annular diaphragm wall 4 and the annular groove, the construction method further comprises the following construction steps:
and vibrating the backfill layer 2 until the backfill layer 2 is in a compact state.
By means of vibrating the backfill layer 2, the structure of the backfill layer 2 is prevented from being loose, and the abutting effect on the annular ground connecting wall 4 is strengthened.
The concrete material is that the material of the anchoring layer 3 is cement mortar, and the material of the backfill layer 2 is sand.
As shown in fig. 2-3, the prefabricated wall brick 1 has a specific structure that the prefabricated wall brick 1 has a strip-shaped structure; the prefabricated wall brick 1 is internally provided with a cavity 11 which penetrates through two ends along the height direction and a plurality of steel bar pieces 12 which are arranged between the cavity 11 and the outer side wall of the brick body.
The prefabricated wall brick 1 has the implementation effects that the prefabricated wall brick 1 is strip-shaped, no splicing seam exists in the height direction of a diaphragm wall formed by enclosing the prefabricated wall brick 1, the water stopping performance is improved, and the convenience and operability of connection of the adjacent prefabricated wall bricks 1 are improved in specific construction, so that the connection quality of the adjacent prefabricated wall bricks 1 is improved, and the connection strength is enhanced; in addition, the prefabricated wall brick 1 is hollowed through the cavity 11 inside the prefabricated wall brick, the reinforcing steel bar piece 12 is arranged between the cavity 11 and the outer side face of the prefabricated wall brick 1, the prefabricated underground diaphragm wall adopting the prefabricated wall brick 1 has the advantages of high bearing capacity and low cost, splicing of the prefabricated underground diaphragm wall in the height direction is avoided, water stopping performance is improved, meanwhile, the weight of the prefabricated underground diaphragm wall is reduced under the condition that the strength of the prefabricated underground diaphragm wall is not influenced, and manufacturing cost is reduced.
In a further improvement, the plurality of reinforcing steel bar pieces 12 are divided into two rows, and the two rows of reinforcing steel bar pieces 12 are respectively arranged on two sides of the prefabricated wall brick 1 in the width direction.
The plurality of reinforcing steel bar pieces 12 are divided into two rows, and the two rows of reinforcing steel bar pieces 12 are respectively arranged on two sides of the prefabricated wall brick 1 in the width direction.
In a further refinement, the prefabricated wall tile 1 extends in an arc shape in the length direction.
Prefabricated wall brick 1 extends in length direction arc, and prefabricated wall brick 1 is the arc bending at length direction promptly, can constitute cyclic annular ground even wall 4 fast after making 1 end to end of a plurality of prefabricated wall brick, avoids every prefabricated wall brick 1 to rotate respectively and meets the central angle of cyclic annular slot, also need not the manual work and rotates every prefabricated wall brick 1 the back interval of arranging, has reduced the construction precision requirement and the operation degree of difficulty.
Preferably, the cavity 11 extends arcuately in the length direction along an arcuately extending path of the prefabricated wall tile 1.
The cavity 11 carries out the arc extension along the arc extension route of prefabricated wall brick 1 at length direction, and cavity 11 bends with prefabricated wall brick 1 with the same radian promptly, makes the lateral wall of cavity 11 and keeps equal with the thickness everywhere between the lateral wall that closes on prefabricated wall brick 1, improves prefabricated wall brick 1's shaping quality.
In practical application, the plurality of reinforcing steel bar pieces 12 extend along the height direction of the prefabricated wall brick 1 and are arranged at intervals along the arc-shaped extending path of the prefabricated wall brick 1.
The reinforcing steel bar pieces 12 extend along the height direction of the prefabricated wall brick 1, namely the reinforcing steel bar pieces 12 are longitudinally arranged, when the prefabricated wall brick 1 is bent in the length direction, the reinforcing steel bar pieces 12 are transversely arranged relative to the reinforcing steel bar pieces 12, the longitudinally arranged reinforcing steel bar pieces 12 do not need to be bent, the subsequent prestress treatment on the reinforcing steel bar pieces 12 is facilitated, and the processing difficulty is reduced; reinforcing bar spare 12 extends the route interval along the arc of prefabricated wall brick 1 and arranges, and the row's of reinforcing bar spare 12 is put all on the predetermined arc, and the radian of predetermineeing the arc is the same with the radian of the arc extension of prefabricated wall brick 1, and every reinforcing bar spare 12 can evenly distributed to the effort that makes receiving of prefabricated wall brick 1, improves bearing effect.
In specific implementation, the steel bar piece 12 is a prestressed steel bar, and the steel bar piece 12 is embedded in the prefabricated wall brick 1.
In this embodiment, the pre-tensioning process is used to pre-stress the steel bar 12, so as to improve the bearing capacity of the single prefabricated wall brick 1, and in addition, the post-tensioning process can be used to pre-stress the steel bar 12, which is not limited in this embodiment.
Preferably, the prefabricated wall tile 1 is a concrete tile.
In the concrete operation, except that selecting concrete brick as prefabricated wall brick 1, still can select different materials such as cement brick as prefabricated wall brick 1, this embodiment does not do too much restriction to this.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and embellishments can be made without departing from the principle of the present invention, and these should also be construed as the scope of the present invention.
Claims (10)
1. The construction method of the prefabricated diaphragm wall is characterized by comprising the following construction methods:
an annular groove arranged to receive an annular groundwall;
sequentially hanging prefabricated wall bricks in the annular groove, grouting in gaps between adjacent prefabricated wall bricks to form an anchoring layer, matching the height of the prefabricated wall brick wall with the depth of the annular groove, and connecting a plurality of prefabricated wall bricks end to end through the anchoring layer to form an annular diaphragm wall;
and filling a backfill layer into a gap between the annular diaphragm wall and the annular groove to finish the diaphragm wall construction.
2. The construction method of the prefabricated diaphragm wall of claim 1, wherein when the prefabricated wall bricks are sequentially hung in the annular groove and grouting is performed in the gap between the adjacent prefabricated wall bricks to form an anchoring layer, the construction method further comprises the following construction steps:
and the prefabricated wall bricks are hung in the annular groove and grouted in the gap between the adjacent prefabricated wall bricks to form an anchoring layer for synchronous construction.
3. The method for constructing the prefabricated diaphragm wall as claimed in claim 2, wherein the step of simultaneously suspending the prefabricated wall blocks in the annular grooves and grouting the gaps between the adjacent prefabricated wall blocks to form the anchoring layers comprises the following steps:
and after the three prefabricated wall bricks are hoisted, grouting is started in gaps between the adjacent prefabricated wall bricks.
4. The method for constructing the prefabricated diaphragm wall as claimed in claim 1, wherein before the prefabricated wall bricks are sequentially hung in the annular groove, the method further comprises the following construction steps:
and manufacturing a plurality of prefabricated wall bricks with the same specification and size, and placing the manufactured prefabricated wall bricks at a preset hoisting position.
5. The construction method of the prefabricated diaphragm wall as claimed in claim 4, wherein when the plurality of prefabricated wall bricks with the same specification and size are manufactured, the construction method further comprises the following construction steps:
binding reinforcing steel bars, erecting a template, pouring concrete into the template, solidifying the concrete and the reinforcing steel bars to form a prefabricated wall brick, and demolding after the prefabricated wall brick is cured to meet the strength requirement.
6. The method for constructing the prefabricated diaphragm wall according to claim 5, wherein when the concrete is poured into the formwork and is solidified with the reinforcing steel bars to form the prefabricated wall brick, the method further comprises the following construction steps:
and (4) the reinforcing steel bars penetrate through the template, the reinforcing steel bars are tensioned, and then the concrete is poured into the template.
7. The method for constructing a prefabricated diaphragm wall according to claim 1, wherein when arranging the annular groove for accommodating the annular diaphragm wall, the method further comprises the following construction steps:
dig and establish a plurality of groove sections, the groove section communicates each other and forms the slot.
8. The method for constructing a prefabricated diaphragm wall according to claim 1, wherein after the backfill layer is filled into the gap between the annular diaphragm wall and the annular groove, the method further comprises the following construction steps:
and vibrating the backfill layer until the backfill layer is in a compact state.
9. The construction method of the prefabricated diaphragm wall as claimed in claim 1, wherein the anchoring layer is made of cement mortar, and the backfill layer is made of sandy soil.
10. The construction method of the prefabricated diaphragm wall of claim 1, wherein the prefabricated wall brick is in a strip-shaped body structure; the prefabricated wall brick is internally provided with a cavity which penetrates through two ends along the height direction and a plurality of steel bar pieces which are arranged between the cavity and the outer side wall of the brick body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211214946.9A CN115434302A (en) | 2022-09-30 | 2022-09-30 | Construction method of prefabricated diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211214946.9A CN115434302A (en) | 2022-09-30 | 2022-09-30 | Construction method of prefabricated diaphragm wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115434302A true CN115434302A (en) | 2022-12-06 |
Family
ID=84251491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211214946.9A Pending CN115434302A (en) | 2022-09-30 | 2022-09-30 | Construction method of prefabricated diaphragm wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115434302A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1091055A2 (en) * | 1999-10-06 | 2001-04-11 | SÜBA Bau Aktiengesellschaft | Prefabricated wall panel |
| CN103046578A (en) * | 2013-01-04 | 2013-04-17 | 朱立新 | Thin wall prefabricated superposed concrete underground continuous wall |
| CN107956220A (en) * | 2017-11-23 | 2018-04-24 | 上海建科工程咨询有限公司 | A kind of prefabricated construction method for diaphragm walls based on TRD grooving |
| CN108118690A (en) * | 2018-01-09 | 2018-06-05 | 上海应用技术大学 | A kind of integral hoisting formula coercion underground continuous wall structure and its prefabricated and construction method |
| CN114908993A (en) * | 2022-05-06 | 2022-08-16 | 上海市建筑科学研究院有限公司 | Brick wall reinforcing method based on cyclic polyolefin resin and prefabricated high-ductility cement-based composite material plate |
-
2022
- 2022-09-30 CN CN202211214946.9A patent/CN115434302A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1091055A2 (en) * | 1999-10-06 | 2001-04-11 | SÜBA Bau Aktiengesellschaft | Prefabricated wall panel |
| CN103046578A (en) * | 2013-01-04 | 2013-04-17 | 朱立新 | Thin wall prefabricated superposed concrete underground continuous wall |
| CN107956220A (en) * | 2017-11-23 | 2018-04-24 | 上海建科工程咨询有限公司 | A kind of prefabricated construction method for diaphragm walls based on TRD grooving |
| CN108118690A (en) * | 2018-01-09 | 2018-06-05 | 上海应用技术大学 | A kind of integral hoisting formula coercion underground continuous wall structure and its prefabricated and construction method |
| CN114908993A (en) * | 2022-05-06 | 2022-08-16 | 上海市建筑科学研究院有限公司 | Brick wall reinforcing method based on cyclic polyolefin resin and prefabricated high-ductility cement-based composite material plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112482359B (en) | Carrier pile | |
| CN105201011B (en) | A kind of compound anchored plate retaining wall and its construction method | |
| CN109487803B (en) | Assembled framework slope protection and construction method thereof | |
| CN107653894A (en) | A kind of construction technology that foundation platform is made by precast concrete | |
| CN103603359A (en) | Deep foundation pit diagonal bracing support structure demolition method | |
| CN104213565A (en) | Die supporting system for large deep pit steep slope surface cushion layer and supporting die casting construction method thereof | |
| CN112323777A (en) | Hollow precast pile for rock embedding and rock embedding construction method using precast pile | |
| CN106894587A (en) | Precast stair connection method | |
| CN105951842B (en) | Reversed beam styrofoam fetal membrane construction method under raft plate | |
| CN109648696A (en) | Side slope precast lattice beam of reinforcing bar connection and preparation method thereof and construction method | |
| CN110886311A (en) | Large-volume assembly type ground tire mold | |
| CN107178081A (en) | A kind of prestressing force post jacking variable cross-section hollow shell pill and its construction method | |
| CN115434302A (en) | Construction method of prefabricated diaphragm wall | |
| CN208023601U (en) | A kind of prefabricated pile foundation support table side form of mutual buckle type | |
| CN215801657U (en) | Inner support replacing structure of deep and large foundation pit | |
| CN105970838B (en) | Deck Arch Bridges vault filler unloads and reinforced construction method and application | |
| CN210507502U (en) | Prefabricated assembled concrete slab bed structure | |
| CN106930307A (en) | The foundation beam prefabricated board and its assembly construction method of a kind of replacement brick fetal membrane | |
| CN210797967U (en) | Novel precast concrete module formwork constructional column structure | |
| CN207469230U (en) | Drum prefabricated pile supporting construction is adjusted in a kind of cement soil wall interpolation rigidity | |
| CN215669478U (en) | Prefabricated dado of manual hole digging pile | |
| CN211689976U (en) | Prefabricated assembled arch culvert | |
| CN113897912B (en) | Rock-fill concrete masonry structure and construction method thereof | |
| CN213773945U (en) | Lightweight prefabricated interior wall | |
| CN218521760U (en) | Prefabricated wall brick and diaphragm wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |