CN111101548A - Water-stop joint structure and construction method of an underground diaphragm wall - Google Patents
Water-stop joint structure and construction method of an underground diaphragm wall Download PDFInfo
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- CN111101548A CN111101548A CN202010062113.XA CN202010062113A CN111101548A CN 111101548 A CN111101548 A CN 111101548A CN 202010062113 A CN202010062113 A CN 202010062113A CN 111101548 A CN111101548 A CN 111101548A
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- waterproof material
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- 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
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
本发明公开了一种地下连续墙止水接缝构造及施工方法，包括先期槽混凝土、后期槽混凝土和防水材料；防水材料的一侧和先期槽混凝土连接，防水材料的另一侧和后期槽混凝土连接；先期槽混凝土的一端呈凹状，后期槽混凝土的一端呈凸状，后期槽混凝土呈凸状一端和先期槽混凝土呈凹状一端配合连接，可以有效的防止墙体垂直度不够导致接缝产生错缝，防止接缝在外力作用下产生水平位移导致相邻墙体水平向错位，防水材料在先期槽段和后期槽段之间形成隔水层，可以有效的防止先期槽段和后期槽段接缝处漏水。
The invention discloses a water-stop joint structure of an underground continuous wall and a construction method, comprising a pre-groove concrete, a post-groove concrete and a waterproof material; one side of the waterproof material is connected with the pre-groove concrete, and the other side of the waterproof material is connected with the post-groove Concrete connection; one end of the early trough concrete is concave, one end of the later trough concrete is convex, and the latter one end of the trough concrete is convex and the early trough concrete is concave. Staggered joints to prevent the horizontal displacement of the joints under the action of external force, resulting in horizontal dislocation of adjacent walls. Water leaks at seams.
Description
Technical Field
The invention relates to a treatment process of underground continuous wall joints in the fields of municipal administration, railways, ports and the like, in particular to a structure and a construction method of a water stop joint of an underground continuous wall.
Background
Along with the rapid development of the building industry in China, the scale and the depth of underground space development are gradually increased, and the underground continuous wall is increasingly applied to a building enclosure system of a deep foundation pit and a large foundation pit due to the characteristics of strong applicability, small construction influence range and high wall rigidity.
The underground continuous wall is characterized in that a groove with a certain width and depth is excavated at a preset position through special groove excavating (flushing) equipment, and underwater concrete is poured by using a guide pipe after a reinforcement cage is placed in a mud retaining wall. Due to the characteristics of the sectional construction, the waterproof treatment of the joint becomes a great problem which puzzles the engineering community, the joint is a weak link of the underground diaphragm wall, and the main problem is that water is easy to leak at the joint because the verticality of the wall is not enough to cause the joint to generate wrong joints, or the joint generates horizontal displacement under the action of external force to cause the horizontal dislocation of adjacent walls, or mud is clamped when the joint is constructed, so that the problem of water stop of the joint of the underground diaphragm wall needs to be solved, and the joint structure and the construction method are improved.
Disclosure of Invention
The invention aims to overcome the technical defects and provides a water-stopping joint structure of an underground diaphragm wall and a construction method.
In order to solve the technical problems, the technical scheme provided by the invention is that the water-stopping joint structure of the underground continuous wall comprises the following components: comprises early-stage groove concrete, later-stage groove concrete and a waterproof material; one side of the waterproof material is connected with the early groove concrete, and the other side of the waterproof material is connected with the later groove concrete.
As an improvement, the waterproof material is in a semicircular ring shape, and one side of the bulge of the waterproof material is connected with the early groove concrete.
As an improvement, the inwards concave side of the waterproof material is connected with later groove concrete.
A construction method of a water stop joint structure of an underground continuous wall comprises the following steps: step one, inserting a water-stopping joint pipe between the early groove section and the later groove section;
step two, pouring early groove concrete into the early groove section;
step three, pulling out the conventional joint pipe after the early groove concrete in the early groove section is condensed, wherein the cylindrical waterproof material can be bonded with the early groove concrete in the early groove section and is left at the joint of the early groove section;
and step four, filling later-stage groove concrete into the later-stage groove section, extruding the slurry surrounded by the slurry in the later-stage groove section and the waterproof material upwards and outwards by the later-stage groove concrete, and extruding the outer side of the cylindrical waterproof material to the inner side of the waterproof material bonded with the early-stage groove concrete in the early-stage groove section to be tightly connected to form a waterproof layer.
Compared with the prior art, the invention has the advantages that: the one end of early groove concrete is the concavity, and the one end of later stage groove concrete is the convexity, and later stage groove concrete is convexity one end and early stage groove concrete is concavity one end cooperation and connects, can effectually prevent that the wall body straightness that hangs down leads to the seam to produce the fissure of displacement inadequately, prevents that the seam from producing horizontal displacement under the exogenic action and leading to adjacent wall body level to the dislocation, and waterproof material forms the water barrier between early stage groove section and later stage groove section, can effectually prevent that early stage groove section and later stage groove section seam crossing from leaking.
Drawings
Fig. 1 is a front view of a water stopping joint pipe inserted into a groove section at a front and rear stage according to a water stopping joint structure of an underground diaphragm wall and a construction method of the water stopping joint pipe.
Fig. 2 is a first structural view of a water stop joint pipe inserted into a groove section at the early and late stages according to the water stop joint structure and the construction method of the underground diaphragm wall.
Fig. 3 is a second structural schematic diagram of a water stop joint pipe inserted into a groove section at the early and late stages according to the water stop joint structure and construction method of the diaphragm wall.
Fig. 4 is a third structural view illustrating a water stopping joint pipe inserted into a groove section at a first and a second stage according to the water stopping joint structure and the construction method of the diaphragm wall of the invention.
Fig. 5 is a front view of a preliminary tank section pouring stage of the underground diaphragm wall water stop joint construction and construction method of the present invention.
Fig. 6 is a first structural schematic diagram of a preliminary tank section pouring stage of the underground diaphragm wall water-stop joint structure and construction method of the invention.
Fig. 7 is a second structural schematic diagram of a preliminary tank section pouring stage of the underground diaphragm wall water-stop joint structure and construction method of the invention.
Fig. 8 is a third structural view of a preliminary tank section pouring stage of the underground diaphragm wall water-stop joint structure and construction method of the present invention.
Fig. 9 is a front view of a sequential groove section full-pouring stage of the underground diaphragm wall water-stop joint structure and the construction method of the invention.
Fig. 10 is a first structural schematic diagram of a sequential groove section full-pouring stage of the underground continuous wall water-stop joint structure and the construction method of the invention.
Fig. 11 is a second structural schematic diagram of a sequential groove section full-pouring stage of the underground diaphragm wall water-stop joint structure and the construction method of the invention.
Fig. 12 is a cross-sectional view taken at a-a in fig. 9.
As shown in the figure: 1. the water-proof joint pipe comprises early groove concrete, 2 later groove concrete, 3 waterproof materials, 4 water-proof joint pipes, 5 early groove sections, 6 later groove sections and 7 conventional joint pipes.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
With reference to the attached drawings 1-12, the structure of the water-stopping joint of the underground diaphragm wall comprises early-stage groove concrete 1, later-stage groove concrete 2 and a waterproof material 3; one side of the waterproof material 3 is connected with the early groove concrete 1, and the other side of the waterproof material 3 is connected with the later groove concrete 2.
The waterproof material 3 is in a semicircular ring shape, and one side of the bulge of the waterproof material 3 is connected with the early groove concrete 1.
And one side of the waterproof material 3, which is concave inwards, is connected with the later groove concrete 2.
A construction method of a water-stopping joint structure of an underground continuous wall comprises the following steps that firstly, a water-stopping joint pipe 4 is inserted between a first-stage groove section 5 and a second-stage groove section 6;
step two, pouring early groove concrete 1 into the early groove section 5;
step three, pulling out the conventional joint pipe 7 after the early groove concrete 1 in the early groove section 5 is condensed, and bonding the cylindrical waterproof material 3 with the early groove concrete 1 in the early groove section 5 to be left at the joint of the early groove section 5;
and step four, filling the later-stage groove section 6 with later-stage groove concrete 2, extruding the slurry surrounded by the slurry in the later-stage groove section 6 and the waterproof material 3 upwards and outwards by the later-stage groove concrete 2, and extruding the outer side of the cylindrical waterproof material 3 to the inner side of the waterproof material 3 bonded with the early-stage groove concrete 1 in the early-stage groove section 5 to be tightly connected to form a waterproof layer.
In the specific implementation of the invention, firstly, the water-stop joint pipe 4 is inserted between the early groove section 5 and the later groove section 6, as shown in figures 1-4; then, pouring the early groove concrete 1 into the early groove section 5, and after the early groove concrete 1 in the early groove section 5 is coagulated, pulling out the conventional joint pipe 7, wherein the cylindrical waterproof material 3 is bonded with the early groove concrete 1 in the early groove section 5 and is left at the joint of the early groove section 5, as shown in fig. 5-8; and (3) pouring the later-stage groove section 6 with later-stage groove concrete 2, extruding the slurry surrounded by the slurry in the later-stage groove section 6 and the waterproof material 3 upwards and outwards by the later-stage groove concrete 2, and extruding the outer side of the cylindrical waterproof material 3 to the inner side of the waterproof material 3 bonded with the early-stage groove concrete 1 in the early-stage groove section 5 to be tightly connected to form a water-resisting layer, as shown in figures 9-12.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides an underground continuous wall stagnant water seam structure which characterized in that: comprises early-stage groove concrete (1), later-stage groove concrete (2) and a waterproof material (3); one side of the waterproof material (3) is connected with the early groove concrete (1), and the other side of the waterproof material (3) is connected with the later groove concrete (2).
2. A diaphragm wall water stop joint construction as claimed in claim 1, wherein: the waterproof material (3) is semicircular, and one side of the bulge of the waterproof material (3) is connected with the early groove concrete (1).
3. The underground continuous wall water stop joint structure and the construction method according to claim 2, wherein: and one side of the waterproof material (3) which is inwards concave is connected with the later groove concrete (2).
4. A construction method of a water stop joint structure of an underground diaphragm wall according to claim 1, characterized in that: step one, inserting a water-stopping joint pipe (4) between a first-stage groove section (5) and a later-stage groove section (6);
step two, pouring early groove concrete (1) into the early groove section (5);
step three, pulling out the conventional joint pipe (7) after the early groove concrete (1) in the early groove section (5) is condensed, and bonding the cylindrical waterproof material (3) with the early groove concrete (1) in the early groove section (5) together and leaving the joint of the early groove section (5);
and step four, pouring later-stage groove concrete (2) into the later-stage groove section (6), extruding the slurry surrounded by the slurry in the later-stage groove section (6) and the waterproof material (3) upwards and outwards by the later-stage groove concrete (2), and extruding the outer side of the cylindrical waterproof material (3) to the inner side of the waterproof material (3) bonded with the early-stage groove concrete (1) in the early-stage groove section (5) to be tightly connected to form a waterproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062113.XA CN111101548A (en) | 2020-01-20 | 2020-01-20 | Water-stop joint structure and construction method of an underground diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010062113.XA CN111101548A (en) | 2020-01-20 | 2020-01-20 | Water-stop joint structure and construction method of an underground diaphragm wall |
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| Publication Number | Publication Date |
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| CN111101548A true CN111101548A (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010062113.XA Pending CN111101548A (en) | 2020-01-20 | 2020-01-20 | Water-stop joint structure and construction method of an underground diaphragm wall |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1590325A (en) * | 1977-07-05 | 1981-05-28 | Comar Reg Trust | Construction of diaphragm walls |
| CN101886402A (en) * | 2010-07-13 | 2010-11-17 | 中铁三局集团有限公司 | Diaphragm wall seam waterproof method and diaphragm wall construction method based on same |
| CN105887936A (en) * | 2016-05-13 | 2016-08-24 | 中国矿业大学 | Freezing pipe embedding type water sealing method of trench wall connector |
-
2020
- 2020-01-20 CN CN202010062113.XA patent/CN111101548A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1590325A (en) * | 1977-07-05 | 1981-05-28 | Comar Reg Trust | Construction of diaphragm walls |
| CN101886402A (en) * | 2010-07-13 | 2010-11-17 | 中铁三局集团有限公司 | Diaphragm wall seam waterproof method and diaphragm wall construction method based on same |
| CN105887936A (en) * | 2016-05-13 | 2016-08-24 | 中国矿业大学 | Freezing pipe embedding type water sealing method of trench wall connector |
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