阅读说明：本技术 地下供热管井防止地下水渗水的方法 (Method for preventing underground water from seeping through underground heat supply pipe well ) 是由 沈志彤 姜波 杨诚 翟丽杰 于 2021-09-14 设计创作，主要内容包括：地下供热管井防止地下水渗水的方法,它属于施工技术领域。它要解决现有地下供热管井使用中存在地下水渗入到地下管井内的问题。方法：一、内墙与预制套管的连接处清理后喷涂油性聚氨酯防水胶,再涂抹995中性硅酮结构胶；二、内墙及地面清理清理后于墙缝和地缝处喷涂油性聚氨酯防水胶,然后墙面及地面整体涂抹油性聚氨酯防水涂料两遍,干燥后即完成。本发明避免了供热管道热胀冷缩会产生小位移造成的缝隙渗水问题；对管井室内存在的防水节点进行有效处理,切断了地下水侵入的通道；同时增强了管井室内墙及地面的抗裂能力,使其耐久性更好,具有防渗效果好、稳定性高,易维修,操作简单、取材方便,成本低廉。本发明适用于地下供热管井防渗处理。(A method for preventing underground water from seeping through an underground heat supply pipe well belongs to the technical field of construction. The underground heat supply pipe well aims to solve the problem that underground water permeates into the underground pipe well in the use of the existing underground heat supply pipe well. The method comprises the following steps: firstly, spraying oil polyurethane waterproof glue after cleaning the joint of the inner wall and the prefabricated sleeve, and then coating 995 neutral silicone structural glue; and secondly, after cleaning the inner wall and the ground, spraying oily polyurethane waterproof glue at the wall joint and the ground joint, then smearing oily polyurethane waterproof paint on the whole wall and the ground twice, and drying to finish the process. The invention avoids the problem of gap water seepage caused by small displacement generated by expansion with heat and contraction with cold of the heat supply pipeline; waterproof nodes existing in the pipe well chamber are effectively treated, and a channel for underground water invasion is cut off; meanwhile, the anti-cracking capacity of the inner wall and the ground of the pipe well chamber is enhanced, so that the pipe well chamber has better durability, good anti-seepage effect, high stability, easy maintenance, simple operation, convenient material acquisition and low cost. The invention is suitable for the anti-seepage treatment of the underground heat supply pipe well.)

1. The method for preventing the underground water from seeping of the underground heat supply pipe well is characterized by comprising the following steps of:

cleaning dust at the joint of the inner wall of a pipe well chamber in an underground heat supply pipe well and a prefabricated sleeve of a heat supply pipeline, drying, spraying an oil-based polyurethane waterproof adhesive, and smearing 995 neutral silicone structural adhesive after 20-24 hours;

and secondly, cleaning dust on the inner wall and the ground of the underground heat supply pipe well chamber, drying, spraying an oil polyurethane waterproof adhesive on the wall joint and the ground joint, coating an oil polyurethane waterproof coating after 12-16 hours, wherein the thickness is 1-1.5 mm, repeatedly coating once again after 20-24 hours, and drying for 24 hours, so that the underground heat supply pipe well is prevented from water seepage of underground water.

2. A method for preventing groundwater infiltration according to claim 1, wherein step one is carried out for 22 hours before applying 995 neutral silicone structural adhesive.

3. The method for preventing groundwater seepage of an underground heat supply pipe well according to claim 1, wherein drying treatment in the first step and the second step is conducted by adopting a blower for ventilation and drying, and the drying time is 4-8 hours.

4. The method for preventing groundwater from permeating of a heat supply pipe well according to claim 1, wherein the second step is carried out by applying an oil polyurethane waterproof coating with a thickness of 1.2mm after 14 hours.

5. A method for preventing groundwater infiltration according to claim 1, wherein the painting is repeated for 22 hours and the drying is performed for 24 hours in the second step.

Technical Field

The invention belongs to the technical field of construction; in particular to a method for preventing underground water from seeping by an underground heat supply pipe well.

Background

The heat supply pipe network is an important social infrastructure, and the underground heat supply pipe well is an important component forming the civil engineering. The heat supply pipeline penetrates through the inner wall of the concrete pipe well chamber, the joint of the concrete pipe well chamber and the concrete pipe well chamber can generate small displacement due to expansion with heat and contraction with cold, so that underground water can permeate, most underground heat supply pipe wells have a small amount of water seepage, and some underground heat supply pipe wells can accumulate water in the well.

If the underground heat supply pipe well after the underground water is infiltrated is in high temperature and high humidity, the corrosion of the equipment is aggravated, and the maintenance cost is increased; and the relatively harsh internal environment of the underground heat supply pipe well can influence the wall body in the pipe well, the failure speed of the waterproof coating of the indoor wall of the concrete pipe well is accelerated, the problems of increased temperature difference cracks, increased settlement cracks, failure of the filling position of a wall expansion joint and the like on the wall body are solved, more underground water permeates into the underground heat supply pipe well, and therefore the key is that the underground heat supply pipe well prevents the underground water from seeping.

At present, some treatment methods, such as a system for timely predicting the state in a well, waterproof coiled material wrapping of an embedded sleeve, gap plugging of the embedded sleeve and a drain pipe, compensator installation and the like, can play a role in preventing seepage at the building or installation part, but water still seeps along with the increase of the service life and the change of the environment and the temperature; therefore, the method is necessary for maintenance and treatment in the use of the underground heat supply pipe well.

Disclosure of Invention

The invention aims to solve the problem that underground water permeates into an underground pipe well in the use of the existing underground heat supply pipe well, and provides a method for preventing the underground water from permeating into the underground heat supply pipe well.

The method for preventing the underground water from seeping of the underground heat supply pipe well is realized according to the following steps:

cleaning dust at the joint of the inner wall of a pipe well chamber in an underground heat supply pipe well and a prefabricated sleeve of a heat supply pipeline, drying, spraying an oil-based polyurethane waterproof adhesive, and smearing 995 neutral silicone structural adhesive after 20-24 hours;

and secondly, cleaning dust on the inner wall and the ground of the underground heat supply pipe well chamber, drying, spraying oily polyurethane waterproof glue at the wall joint and the ground joint, coating oily polyurethane waterproof paint on the wall surface and the ground in 12-16 hours, wherein the thickness is 1-1.5 mm, repeatedly coating once again after 20-24 hours, and drying for 24 hours, so that the underground heat supply pipe well is prevented from water seepage of underground water.

The invention adopts polyurethane waterproof glue to perform anti-seepage treatment on the joint of the inner wall of the well chamber and the prefabricated sleeve of the heat supply pipeline, and then adds and uses the corrosion-resistant and heat-resistant neutral silicone structural glue for further sealing treatment, thereby avoiding the problem of gap water seepage caused by small displacement generated by heat expansion and cold contraction of the heat supply pipeline. The gaps of the inner wall and the ground of the underground heat supply pipe well room comprise temperature difference cracks, settlement cracks, expansion joints and the like, the inner wall of the gap is prevented from seepage, and then the inner wall and the ground are integrally subjected to seepage prevention treatment.

The invention effectively solves the problem that the underground water penetrates into the underground pipe well when the underground heat supply pipe well is used, and the waterproof node in the pipe well chamber is effectively treated by the invention, so that the channel for the invasion of the underground water is cut off; meanwhile, the anti-cracking capacity of the inner wall and the ground of the pipe well chamber is enhanced, so that the pipe well chamber has better durability, good anti-seepage effect, high stability, easy maintenance, simple operation, easy mastering, convenient material acquisition and low cost.

The method for preventing the underground heat supply pipe well from water seepage is suitable for the anti-seepage treatment of the underground heat supply pipe well.

Drawings

FIG. 1 is a schematic illustration of a pipe well chamber in a subsurface heat supply pipe well according to an embodiment.

Detailed Description

The technical solution of the present invention is not limited to the following specific embodiments, but includes any combination of the specific embodiments.

The first embodiment is as follows: the method for preventing the underground water from seeping of the underground heat supply pipe well in the embodiment is realized according to the following steps:

cleaning dust at the joint of the inner wall of a pipe well chamber in an underground heat supply pipe well and a prefabricated sleeve of a heat supply pipeline, drying, spraying an oil-based polyurethane waterproof adhesive, and smearing 995 neutral silicone structural adhesive after 20-24 hours;

and secondly, cleaning dust on the inner wall and the ground of the underground heat supply pipe well chamber, drying, spraying oily polyurethane waterproof glue at the wall joint and the ground joint, coating oily polyurethane waterproof paint on the wall surface and the ground in 12-16 hours, wherein the thickness is 1-1.5 mm, repeatedly coating once again after 20-24 hours, and drying for 24 hours, so that the underground heat supply pipe well is prevented from water seepage of underground water.

In this embodiment, the oil-based polyurethane waterproof adhesive, the oil-based polyurethane waterproof coating material, and the 995 neutral silicone structural adhesive are all commercially available products.

The second embodiment is as follows: unlike the first embodiment, 995 hours of neutral silicone structural adhesive is coated after 22 hours in the first step. Other steps and parameters are the same as those in the first embodiment.

The third concrete implementation mode: the difference between the first embodiment and the second embodiment is that the drying treatment in the first and second steps is realized by adopting an air blower to ventilate and dry, and the drying time is 4-8 h. Other steps and parameters are the same as those in the first or second embodiment.

The fourth concrete implementation mode: the difference between the first embodiment and the third embodiment is that after 14 hours in the second step, the wall surface and the ground are coated with the oil-based polyurethane waterproof paint, and the thickness is 1.2 mm. Other steps and parameters are the same as those in one of the first to third embodiments.

The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is that in the second step, the coating is repeated for 22 hours and then dried for 24 hours. Other steps and parameters are the same as in one of the first to fourth embodiments.

In the embodiment, the once smearing of the oil-based polyurethane waterproof paint is repeated, and the thickness of the paint is 1-1.5 mm.

The beneficial effects of the present invention are demonstrated by the following examples:

example (b):

the method for preventing the underground water from seeping of the underground heat supply pipe well is realized according to the following steps:

cleaning dust at the joint of the inner wall of a pipe well chamber in an underground heat supply pipe well and a prefabricated sleeve of a heat supply pipeline, drying, spraying an oil-based polyurethane waterproof adhesive, and smearing 995 neutral silicone structural adhesive after 24 hours;

and secondly, cleaning dust on the inner wall and the ground of the underground heat supply pipe well chamber, drying, spraying oily polyurethane waterproof glue at the wall joint and the ground joint, coating oily polyurethane waterproof paint on the whole wall surface and the ground after 16 hours, wherein the thickness is 1.2mm, repeatedly coating once after 24 hours, and drying for 24 hours, thus finishing the underground heat supply pipe well to prevent the water seepage of underground water.

In the first and second steps of this example, both drying treatments were carried out by air-blowing with a blower for 6 hours.

In this embodiment, the oil-based polyurethane waterproof adhesive, the oil-based polyurethane waterproof coating material and the 995 neutral silicone structural adhesive are all commercially available products.

The schematic diagram of the well chamber in the underground heat supply pipe well is shown in figure 1, after the anti-seepage treatment of the embodiment, the underground heat supply pipe well has no underground water leakage phenomenon, the gap at the joint of the inner wall of the well chamber in the heat supply environment and the prefabricated sleeve of the heat supply pipeline has no change, no leakage, and the waterproof layers on the inner wall and the ground have good elasticity and are not brittle and not cracked.