Non-water-cut-off non-excavation repair method for drain pipe disjointing diseases
阅读说明：本技术 一种排水管脱节病害不停水非开挖修复方法 (Non-water-cut-off non-excavation repair method for drain pipe disjointing diseases ) 是由 王复明 方宏远 赵鹏 潘艳辉 李斌 何航 于 2019-09-25 设计创作，主要内容包括：本发明提供一种排水管脱节病害不停水非开挖修复方法,步骤包括：利用管道声呐检测到脱节位置,并利用牵引绳做好标记；按照牵引绳上的标记将空心柱形气囊拉至脱节处,地面上的空气压缩机控制气囊阀门对空心柱形气囊进行充气,使得气囊膨胀后与管壁紧贴；在脱节正上方及两侧地面钻注浆孔至脱节部位,并在注浆孔内插入注浆管,然后通过地面上的注浆系统向脱节部位注射双浆速凝修复材料,待修复材料凝固；空心柱形气囊放气,利用牵引绳拉出气囊。空心柱形气囊的使用使得在脱节位置修复的过程中,污水能够从空心柱形气囊流出,无需停水,大大减少城市主干排水管道出现脱节病害停水修复对整个排除系统造成不良后果。(The invention provides a non-water-stop non-excavation repair method for a drain pipe disjointing disease, which comprises the following steps: detecting the dislocation position by using a pipeline sonar, and marking by using a traction rope; the hollow cylindrical air bag is pulled to a disjointed position according to the mark on the hauling rope, and an air compressor on the ground controls an air bag valve to inflate the hollow cylindrical air bag, so that the air bag is tightly attached to the pipe wall after being expanded; drilling grouting holes to the disjointed part on the ground right above and at two sides of the disjointed part, inserting a grouting pipe into the grouting holes, injecting a double-slurry quick-setting repair material to the disjointed part through a grouting system on the ground, and solidifying the repair material; the hollow cylindrical air bag is deflated, and the air bag is pulled out by using the traction rope. The hollow cylindrical air bag is used, so that in the process of repairing the disjointed position, sewage can flow out of the hollow cylindrical air bag without stopping water, and the adverse consequences of the disjointed disease and water stopping repair of urban main drainage pipelines to the whole drainage system are greatly reduced.)
1. A non-water-stop non-excavation repair method for a drain pipe disjointing disease is characterized by comprising the following steps
S1, putting the pipeline sonar tied with the hauling cable into the upstream manhole, connecting one end of the hauling cable with the ground of the upstream manhole, and pulling out the other end of the hauling cable from the downstream manhole;
s2, pulling the hauling rope, so as to drive the pipeline sonar to slowly move in the drain pipe until a disjointed disease is found, and marking the hauling rope exposed out of the ground after the disjointed position is found, so that the subsequent process can conveniently and quickly find the disjointed position;
s3, pulling out the pipeline sonar;
s4, according to the mark on the hauling rope, tying the hollow cylindrical air bag matched with the pipe diameter at the position of the original pipeline sonar, pulling the hollow cylindrical air bag from the upstream inspection well to the disjointed position according to the method of the step S1, starting an air compressor on the ground, inflating the hollow cylindrical air bag through an air pipe, wherein the hollow cylindrical air bag is tightly attached to the pipe wall after being inflated and expanded, and sewage continuously flows from the hollow through hole in the middle of the hollow cylindrical air bag;
s5, drilling a grouting hole in the disjointed position corresponding to the ground to the disjointed position, inserting a grouting pipe into the grouting hole, connecting the grouting pipe with a grouting system on the ground, starting the grouting system, injecting a double-slurry quick-setting repair material to the disjointed position, and allowing the slurry to flow and diffuse along the periphery of the pipe body at the disjointed position and expand and solidify quickly to form an annular impermeable layer;
s6, after the curing of the double-slurry quick-setting repair material is completed, the air compressor on the ground is controlled to enable the hollow cylindrical air bag to be deflated, the hollow cylindrical air bag is pulled out by the aid of the traction rope, then the pipeline sonar is placed into the pipeline from the upstream detection well again, retesting is carried out under the driving of the traction rope, and effectiveness of repair is checked.
2. The non-stop non-excavation repair method for the drain pipe dislocation disease according to claim 1, wherein in step S1, the upstream manhole and the downstream manhole are respectively provided with a pulley block, the hauling cable is sequentially wound on the pulley block, and the pipeline sonar is arranged in the middle of the hauling cable.
3. The non-stop trenchless rehabilitation method for drain pipe disjointing diseases according to claim 1 or 2, wherein in step S1, the other end of the pulling rope is pulled out from the downstream manhole by connecting a floating object to the other end of the pulling rope, the floating object drifts to the downstream manhole under the driving of the water flow in the pipe, and the pulling rope with the end connected with the floating object is pulled out from the downstream manhole.
4. The method for trenchless rehabilitation of a drain pipe dislocation disease without stopping water according to claim 1, wherein in step S4, the hollow cylindrical air bag has a length of 2m after being inflated, an outer diameter at least 2cm larger than the inner diameter of the pipe to be repaired, and an inner diameter at least 5cm smaller than the outer diameter.
5. The non-stop non-excavation repair method for the drain pipe disjointing diseases according to claim 1, wherein in step S4, one end of the hollow cylindrical air bag is connected with an air pipe, an air bag valve is arranged on the air pipe, and the other end of the air pipe is connected with an air compressor.
6. The non-stop non-excavation repair method for the drain pipe dislocation disease according to any one of claims 1, 2, 4 to 5, wherein in the step S4, a metal detection rod is arranged in the hollow through hole in the middle of the hollow cylindrical air bag and is used in cooperation with a radar detector arranged on the ground to detect the depth of the dislocation disease place from the ground.
7. The non-stop non-excavation repair method for the drain pipe dislocation disease according to claim 1, wherein in step S5, grouting holes are drilled in the ground surfaces directly above the dislocation position or on both sides, or respectively.
8. The non-stop non-excavation repair method for the drain pipe disjointing diseases according to the claim 1, the claim 2 or the claim 7, wherein in the step S5, the double-slurry quick-setting repair material comprises a main agent and a curing agent, and the weight ratio of the main agent to the curing agent is 2:1-1: 1;
the main agent comprises the following raw materials, by weight, 50-160 parts of isocyanate, 20-100 parts of chlorophosphate mixture with the density of more than 1400kg/m3, and the weight ratio of the isocyanate to the chlorophosphate mixture is 1: 1-4: 1;
the curing agent comprises the following raw materials, by weight, 30-60 parts of chlorophosphate mixture with the density of more than 1400kg/m3, 5-15 parts of propyl formate, methyl propionate or mixture of propyl formate and methyl propionate, 15-55 parts of polyol, 1-3 parts of surfactant, 2-6 parts of catalyst, 0-0.5 part of water and 0-1 part of color paste.
9. The non-cutting off water non-excavation repair method for the drain pipe disjointing disease according to claim 1, wherein in the step S5, the grouting system comprises a pneumatic diaphragm pump I and a pneumatic diaphragm pump II which are respectively connected with an air compressor through air ropes, a storage barrel I and a storage barrel II, the storage barrel I is connected with the pneumatic diaphragm pump I through a conveying pipe, the storage barrel II is connected with the pneumatic diaphragm pump II through a conveying pipe, the grouting system further comprises a grouting proportion instrument, the discharge ports of the pneumatic diaphragm pump I and the pneumatic diaphragm pump II are both connected with the grouting proportion instrument through a conveying pipe, the discharge port of the grouting proportion instrument is connected with a grouting gun head through a conveying pipe, and the grouting gun head is connected with the grouting pipe.
10. The non-stop non-excavation repair method for the drain pipe dislocation disease according to claim 1, wherein in the step S6, the repaired dislocation position is quickly found according to the mark on the hauling cable, and the retest is carried out.
Technical Field
The invention relates to the technical field of underground drainage pipeline repair, in particular to a non-water-stop non-excavation external grouting repair method for underground concrete drainage pipe disjointing diseases.
Background
The urban underground drainage pipe network is used as an underground main artery of a modern city, plays an important role in draining sewage and the like, and plays a very important role in daily life of urban residents. With the acceleration of the urbanization process of China, the construction scale of urban underground drainage pipe networks is gradually huge, and as the year is 2017, the mileage of urban drainage pipes of China exceeds 63 km. However, with the increasing service life of the pipeline, the pipeline is seriously aged and repaired, and diseases such as leakage, corrosion, stagger, disjointing and the like commonly exist.
The dislocation is one of the most common diseases of the current underground drainage pipeline, if the sewage in the pipeline leaks out due to untimely treatment, the pipeline bottom foundation can be hollowed out for a long time, new diseases such as dislocation and the like are induced, and the pollution is also generated on peripheral soil and underground water. In addition, if the underground water level around the pipeline is high, the disconnection can cause a large amount of underground clear water to permeate into the pipeline, and the treatment efficiency of a sewage plant is seriously influenced.
The existing repair schemes for pipeline disjointing mainly include two main categories: the first type is excavation repair, and the repair mode has low construction speed, large influence on traffic, high manufacturing cost, large amount of construction waste generation and environmental pollution; the second type is non-excavation repair, and the process mainly comprises an in-pipeline penetration method, a normal position solidification method (CIPP), a pipe crushing method, a winding method, a local repair method and the like.
The method comprises the steps of winding and fixing a glass fiber checkered cloth composite felt soaked with resin on a repairing air bag, conveying the repairing air bag to a damaged position, solidifying the resin outside the repairing air bag and the damaged position of the pipeline, releasing air pressure of the air bag, achieving the purpose of repairing the damaged point, stopping water during repairing, and having extremely large operation load on a city drainage main pipe; in addition, in the process of conveying the repairing air bag to the damaged point, the repairing materials such as resin on the repairing air bag are possibly separated, and the repairing efficiency and the repairing effect are influenced.
Therefore, the development of the trenchless repair process of the underground concrete drainage pipeline under the condition of no water stop is urgent.
Disclosure of Invention
Aiming at the conditions that main drainage pipelines in cities are large in operation load and cannot be maintained without water supply, the non-cut-off water non-excavation repairing method for the drainage pipeline disjointed diseases comprises the steps of firstly adopting a hollow cylindrical air bag to tightly adhere to and block the disjointed part, then drilling holes on the ground right above and at two sides of the disjointed part, and injecting a novel double-slurry quick-setting polymer repairing material to implement external grouting fixed-point maintenance on the drainage pipeline disjointed diseases so as to realize the non-cut-off water quick repair of the pipeline disjointed diseases.
In order to achieve the aim, the invention provides a non-water-stop non-excavation repair method for a drain pipe disjunction disease, which comprises the following steps:
s1, putting the pipeline sonar tied with the hauling cable into the upstream manhole, connecting one end of the hauling cable with the ground of the upstream manhole, and pulling out the other end of the hauling cable from the downstream manhole;
s2, pulling the hauling rope, so as to drive the pipeline sonar to slowly move in the drain pipe until a disjointed disease is found, and marking the hauling rope exposed out of the ground after the disjointed position is found, so that the subsequent process can conveniently and quickly find the disjointed position;
s3, pulling out the pipeline sonar;
s4, according to the mark on the hauling rope, tying the hollow cylindrical air bag matched with the pipe diameter at the position of the original pipeline sonar, pulling the hollow cylindrical air bag from the upstream inspection well to the disjointed position according to the method of the step S1, starting an air compressor on the ground, inflating the hollow cylindrical air bag through an air pipe, wherein the hollow cylindrical air bag is tightly attached to the pipe wall after being inflated and expanded, and sewage continuously flows from the hollow through hole in the middle of the hollow cylindrical air bag;
s5, drilling a grouting hole in the disjointed position corresponding to the ground to the disjointed position, inserting a grouting pipe into the grouting hole, connecting the grouting pipe with a grouting system on the ground, starting the grouting system, injecting a double-slurry quick-setting repair material to the disjointed position, and allowing the slurry to flow and diffuse along the periphery of the pipe body at the disjointed position and expand and solidify quickly to form an annular impermeable layer;
s6, after the curing of the double-slurry quick-setting repair material is completed, the air compressor on the ground is controlled to enable the hollow cylindrical air bag to be deflated, the hollow cylindrical air bag is pulled out by the aid of the traction rope, then the pipeline sonar is placed into the pipeline from the upstream detection well again, retesting is carried out under the driving of the traction rope, and effectiveness of repair is checked.
Preferably, in step S1, pulley blocks are respectively installed on the upstream manhole and the downstream manhole, the hauling rope is sequentially wound around the pulley blocks, and the pipeline sonar is tied in the middle of the hauling rope.
Preferably, in step S1, the other end of the pull rope is pulled out from the downstream manhole by connecting a float to the other end of the pull rope, drifting the float to the downstream manhole by the water flow in the pipe, and pulling out the pull rope connected with the one end of the float from the downstream manhole.
Preferably, in step S2, the mark is a label, and the label can record the detailed information of the disjointed place.
Preferably, in step S4, the hollow cylindrical balloon has a length of 2m after being inflated, an outer diameter at least 2cm larger than the inner diameter of the repaired pipe, and an inner diameter at least 5cm smaller than the outer diameter.
Preferably, in step S4, one end of the hollow cylindrical air bag is connected to an air tube, an air bag valve is disposed on the air tube, and the other end of the air tube is connected to an air port of an air compressor.
Preferably, in step S4, a metal detection rod is disposed in the hollow through hole in the middle of the hollow cylindrical air bag, and is used in cooperation with a ground radar detector to detect the depth of the dislocation disease from the ground.
Preferably, the hollow cylindrical air bag is made of rubber.
Preferably, in step S5, grouting holes are drilled in the ground surfaces directly above the disjointed position or on both sides of the disjointed position, or grouting holes are drilled in the ground surfaces directly above the disjointed position and on both sides of the disjointed position, respectively, so as to facilitate the dispersion and circulation of the grout at the disjointed position.
Preferably, in the step S5, the double-slurry quick-setting repair material includes a main agent and a curing agent, and the weight ratio of the main agent to the curing agent is 2:1-1: 1;
the main agent comprises the following raw materials, by weight, 50-160 parts of isocyanate, 20-100 parts of chlorophosphate mixture with the density of more than 1400kg/m3, and the weight ratio of the isocyanate to the chlorophosphate mixture is 1: 1-4: 1;
the curing agent comprises the following raw materials, by weight, 30-60 parts of chlorophosphate mixture with the density of more than 1400kg/m3, 5-15 parts of propyl formate, methyl propionate or mixture of propyl formate and methyl propionate, 15-55 parts of polyol, 1-3 parts of surfactant, 2-6 parts of catalyst, 0-0.5 part of water and 0-1 part of color paste.
Preferably, in step S5, the slip casting system includes air compressor, and pneumatic diaphragm pump i and pneumatic diaphragm pump ii link to each other with air compressor through the air rope respectively, still include storage vat i and storage vat ii, and storage vat i passes through the conveying pipeline and links to each other with pneumatic diaphragm pump i, and storage vat ii passes through the conveying pipeline and links to each other with pneumatic diaphragm pump ii, still includes slip casting ratio appearance, and pneumatic diaphragm pump i and pneumatic diaphragm pump ii' S discharge gate all links to each other with slip casting ratio appearance through the conveying pipeline, and the discharge gate of slip casting ratio appearance passes through the conveying pipeline and links to each other with the slip casting rifle head, slip casting rifle head with the slip casting pipe links to each other. And the main agent and the curing agent of the double-slurry quick-setting repair material are respectively stored in a storage vat I and a storage vat II.
Preferably, in the step S6, the repaired disjointed position is quickly found according to the mark on the traction rope, and the retest is performed.
It should be noted that, when a disjointed disease is searched in a certain section of pipeline, after all possible disjointed positions in the section of pipeline are detected, the pipeline sonar is pulled out after the marks are made respectively, so that the inspection efficiency can be improved.
In view of the characteristics of the double-slurry quick-setting repair material, the double-slurry quick-setting repair material is easy to separate from the hollow cylindrical air bag made of rubber, and after the double-slurry quick-setting repair material is cured at the separation position, the deflated hollow cylindrical air bag can be pulled out by slightly pulling the traction rope.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the characteristics of the hollow cylindrical air bag are utilized as an important medium for pipeline repair, so that the outer side wall of the inflated hollow cylindrical air bag is tightly attached to a disjointed part, grouting is prevented from entering water flow to pollute a water source, meanwhile, a hollow through hole in the middle of the hollow cylindrical air bag can be used for water flow to normally pass through, water does not need to be cut off in the process of repairing the disjointed part of the pipeline, and adverse consequences of the water cutting off repair of the main drainage pipeline of a city to the whole removal system are greatly reduced.
2. According to the method, the pipeline sonar is adopted to detect the disjointed position, and the radar depth detector is combined to detect the depth of the disjointed position, so that the method for repairing the pipeline disjointed disease does not need to be excavated, and only grouting holes are drilled at the corresponding position of the disjointed position, thereby greatly reducing the difficulty and time of construction and the adverse effect of excavation on nearby traffic.
3. According to the invention, the grouting pipe is inserted into the grouting pipe, and the double-grout rapid-hardening repair material is injected to the disjointed part through the grouting pipe, so that the operation is simple, the double-grout rapid-hardening repair material can be quickly solidified, and the repair efficiency of the drainage pipeline disjointed disease is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a pipeline for sonar detection of pipeline dislocation;
FIG. 2 is a three-dimensional schematic view of a pipe disjointed;
FIG. 3 is a schematic view of a hollow cylindrical balloon occlusion;
FIG. 4 is a schematic view of a hollow cylindrical balloon;
FIG. 5 is a schematic plan view of the grouting holes;
FIG. 6 is a cross-sectional view of the arrangement of grouting holes and grouting pipes;
FIG. 7 is a schematic view of grouting for repairing pipe dislocation externally;
FIG. 8 is a three-dimensional effect diagram of grouting external repair pipeline disjointing diseases;
the reference numbers are as follows:
1. a hauling rope; 2. a pulley block; 3. an upstream inspection well; 4. a pipeline sonar; 5. a disjointed disease; 6. a hollow cylindrical air bag; 7. an air bag valve; 8. an air compressor; 9. grouting holes; 10. a grouting pipe; 11. a grouting system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention will be further described with reference to the following figures:
referring to fig. 1, 2, 3, 6 and 7, the present embodiment provides a method for repairing a disjointed defect of a drain pipe without water cut-off in a non-excavation manner, where the method includes the following steps:
s1, putting the
s2, pulling the hauling rope 1, so as to drive the
s3, pulling out a
s4, tying the hollow
s5, drilling a
s6, after the double-slurry quick-setting repair material is cured, the air compressor on the ground is controlled to enable the hollow
As a preferred embodiment, referring to fig. 1, 3 and 7, in step S1,
In a preferred embodiment, in step S1, the other end of the hauling cable 1 is pulled out from the downstream manhole by connecting a floating object to the other end of the hauling cable 1, floating the floating object to the downstream manhole by the water flow in the pipe, and pulling out the hauling cable connected with one end of the floating object from the downstream manhole, wherein the floating object is a material bottle in this embodiment.
In a preferred embodiment, in step S2, the label is a label, and the label can record detailed information of the disjointed position, such as the first disjointed position.
In a preferred embodiment, referring to fig. 4, in step S4, the hollow
As a preferred embodiment, referring to fig. 4, in step S4, an air tube is connected to one end of the hollow
In a preferred embodiment, referring to fig. 4, in step S4, a metal detection rod is disposed in the hollow through hole in the middle of the hollow
In a preferred embodiment, the hollow
As a preferable example, referring to fig. 5 and 6, in the step S5,
As a preferred embodiment, in the step S5, the dual-slurry quick-setting repair material includes a main agent and a curing agent, wherein the weight ratio of the main agent to the curing agent is 2:1-1: 1;
the main agent comprises the following raw materials, by weight, 50-160 parts of isocyanate, 20-100 parts of chlorophosphate mixture with the density of more than 1400kg/m3, and the weight ratio of the isocyanate to the chlorophosphate mixture is 1: 1-4: 1;
the curing agent comprises the following raw materials, by weight, 30-60 parts of chlorophosphate mixture with the density of more than 1400kg/m3, 5-15 parts of propyl formate, methyl propionate or mixture of propyl formate and methyl propionate, 15-55 parts of polyol, 1-3 parts of surfactant, 2-6 parts of catalyst, 0-0.5 part of water and 0-1 part of color paste.
As a preferred embodiment, referring to fig. 7, in step S5, the grouting system includes an air compressor, a pneumatic diaphragm pump i and a pneumatic diaphragm pump ii are respectively connected to the air compressor through an air rope, and further includes a storage vat i and a storage vat ii, the storage vat i is connected to the pneumatic diaphragm pump i through a delivery pipe, the storage vat ii is connected to the pneumatic diaphragm pump ii through a delivery pipe, and further includes a grouting proportion instrument, the discharge ports of the pneumatic diaphragm pump i and the pneumatic diaphragm pump ii are both connected to the grouting proportion instrument through a delivery pipe, the discharge port of the grouting proportion instrument is connected to a grouting gun head through a delivery pipe, and the grouting gun head is connected to the grouting pipe. And the main agent and the curing agent of the double-slurry quick-setting repair material are respectively stored in a storage vat I and a storage vat II.
In a preferred embodiment, in step S6, the position of the repaired
It should be noted that, when a
In view of the characteristics of the double-slurry quick-setting repair material, the double-slurry quick-setting repair material is easy to separate from the hollow
The non-cut-off non-excavation repair method for the disjointed diseases of the drain pipe adopts a non-excavation mode to repair, has low repair cost, high construction automation degree, low construction strength and high construction efficiency, is constructed on the well, occupies small space, improves safety, is not limited by environmental space, has no noise and does not disturb residents; meanwhile, the characteristic of the hollow
The foregoing is a detailed description of the invention, and specific examples are used herein to explain the principles and implementations of the invention, the above description being merely intended to facilitate an understanding of the principles and core concepts of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.