Cold region tunnel novel material heat preservation inspection well

Abstract

The utility model relates to the field of tunnel inspection wells, in particular to a novel material heat preservation inspection well for a tunnel in a cold region. The inspection well comprises an inspection well wall, an inspection well outer layer cover plate and a novel thermal insulation material well wall, and the novel thermal insulation material well wall is installed on the inner wall of the inspection well wall. The novel thermal insulation material well wall comprises an STP vacuum thermal insulation plate fixed to the inner wall of the well wall of the inspection well through adhesive mortar. Meanwhile, the STP vacuum insulated panel is fixed on the inner wall of the well wall of the inspection well through the combination of the fixing anchor bolts and the anchoring parts; plastering mortar is applied to the surface of the STP vacuum insulated panel; the inspection well inner layer heat preservation cover plate is placed on the novel heat preservation material well wall; the inspection well inner layer heat preservation cover plate comprises stainless steel angle steel, an RPC concrete cover plate and an STP vacuum heat insulation plate cover plate which are sequentially arranged from bottom to top. The structure can ensure the thermal insulation performance of the tunnel inspection well and prevent water flow in the inspection well from freezing.

Description

Technical Field

[0001] The utility model relates to the field of tunnel inspection wells, in particular to a new material insulation inspection well for tunnels in cold regions. Background Art

[0002] With the large-scale construction of transportation infrastructure, a large number of tunnel projects will inevitably appear in the construction of mountain highways. When the tunnel is located in a cold area with low daily temperatures and high wind speed at the tunnel entrance, the ditch inspection wells within a certain range of the tunnel entrance are prone to freezing, resulting in the inability to drain the water in the tunnel ditch smoothly, thus rendering the tunnel drainage system ineffective. Eventually, the water behind the tunnel lining flows out along weak waterproof positions such as deformation joints and construction joints, and forms ice on the arch due to the low temperature, and accumulates into icicles on the side walls, invading the building limit and endangering driving safety.

[0003] The traditional treatment method is to fill the tunnel ditch inspection well with insulation cotton to prevent the heat exchange between the inside of the inspection well and the outside world to achieve the purpose of insulation. However, this method can only prevent the heat exchange between the inside of the inspection well and the outside world, but cannot prevent the heat exchange between the side walls of the inspection well and the outside world. In addition, there is constant water flow and high humidity in the tunnel ditch inspection well, which causes the conventional insulation cotton to gradually lose its insulation effect after absorbing water, eventually causing tunnel frost damage. Therefore, a better new material tunnel insulation inspection well is needed to ensure the insulation performance of the tunnel inspection well and prevent the water flow in the inspection well from freezing. Utility Model Content

[0004] The utility model provides a new material insulation inspection well for cold-region tunnels, which solves the problem that the ditch inspection well at the entrance of cold-region tunnels is prone to freezing and blockage, which causes the water flow in the ditch pipe to be unable to be discharged smoothly and causes tunnel freezing damage. By setting a new insulation material wall in the inspection well wall and setting an inner insulation cover plate of the inspection well, the heat exchange between the ditch inspection well and the outside world can be greatly reduced, and the freezing and blockage of the tunnel ditch inspection well can be prevented. Reducing the damage caused by freezing and blockage of ditch inspection wells during the operation period is of great practical significance to improving the quality of tunnel engineering and long-term stability.

[0005] The technical solution of the utility model is as follows:

[0006] A new material insulation inspection well for cold zone tunnels, wherein the wall of the new material insulation inspection well is arranged inside the tunnel ditch inspection well, and is characterized in that: the wall of the new material insulation inspection well comprises: an STP vacuum insulation panel, wherein the STP vacuum insulation panel is arranged along the inner wall of the inspection well; and an inner insulation cover plate, wherein the inner insulation cover plate is composed of an RPC concrete cover plate and an STP vacuum insulation panel.

[0007] Furthermore, the STP vacuum insulation panel is fixed to the inner wall of the inspection well by using bonding mortar, fixing anchor bolts and anchor pieces.

[0008] Furthermore, the inner insulation cover plate is placed on a stainless steel angle steel, and the stainless steel angle steel is fixed to the wall of the new material insulation inspection well by anchor bolts.

[0009] The beneficial effects of the utility model are: 1) The STP vacuum insulation board is used as a new type of thermal insulation material well wall, which has excellent thermal insulation performance, can effectively reduce the heat exchange between the inspection well and the tunnel, improve the stability of the internal temperature of the tunnel inspection well, and reduce the heat loss of the water flow in the inspection well, thereby avoiding the freezing of the water flow in the inspection well caused by heat loss.

[0010] 2) The inner insulation cover of the inspection well wall is set with new insulation materials, including STP vacuum insulation board cover, RPC concrete cover and stainless steel angle steel. This structural design can effectively support and protect the internal insulation material, so that it can still have good insulation effect under harsh conditions. The stainless steel angle steel and RPC concrete cover have good corrosion resistance and can remain stable in humid and corrosive environments.

[0011] In summary, installing a new type of insulation material wall in the inspection well and installing an insulation cover plate inside the inspection well can greatly reduce the heat exchange between the ditch inspection well and the outside world, and prevent the freezing and blockage of water flow in the tunnel ditch inspection well. Reducing tunnel diseases caused by freezing and blockage of water flow in the ditch inspection well during operation is of great practical significance to improving the quality of tunnel engineering and long-term stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic elevation diagram of a new material insulation inspection well in a cold region tunnel.

[0013] Figure 2 The utility model is a plan view of a new material insulation inspection well in a cold region tunnel.

[0014] Figure 3 This is the AA cross-sectional view of a new material insulation inspection well in a cold region tunnel according to the utility model.

[0015] Figure 4 This is a cross-sectional drawing of the insulation material of a new material insulation inspection well in a cold region tunnel of the utility model;

[0016] As shown in the figure: inspection well 1, inspection well wall 2, new insulation material wall 3, fixed anchor bolts 301, bonding mortar 302, STP vacuum insulation board 303, anchor 304, alkali-resistant glass fiber mesh cloth 305, plastering mortar 306, STP vacuum insulation board cover 4, RPC concrete cover 5, stainless steel angle steel 6, stainless steel anchor bolts 7, inspection well outer cover 8, and central ditch 9. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is further described below with reference to the accompanying drawings and through specific embodiments:

[0018] Example 1

[0019] like Figure 1-4 As shown, the utility model provides a new material insulation inspection well for cold-region tunnels, in which a new insulation material well wall 3 and an inner insulation cover of the inspection well are installed on the inner wall of the inspection well wall 2 of the original inspection well 1, so as to ensure the insulation performance of the tunnel inspection well and prevent the water flow in the inspection well from freezing.

[0020] The specific installation is as follows:

[0021] The new insulation material well wall 3 is composed of fixed anchor bolts 301, bonding mortar 302, STP vacuum insulation panel 303, anchor 304, alkali-resistant glass fiber mesh cloth 305 and plastering mortar 306. First, the STP vacuum insulation panel 303 is pasted on the surface of the ditch inspection well wall 2 using bonding mortar 302 to prevent the lateral diffusion of heat; at the same time, in order to provide an accurate anchoring position for the later fixed anchor bolts 301, the anchor 304 should be placed while pasting the STP vacuum insulation panel. After the STP vacuum insulation panel 303 of the entire inspection well wall is pasted, the interface agent is sprayed on its surface, and the alkali-resistant glass fiber mesh cloth 305 is fixed on the surface of the STP vacuum insulation panel 303 at the position of the anchor 304 using the fixed anchor bolts 301, and the plastering mortar 306 is applied on its surface. The lower end of the new insulation material well wall 3 is located above the water flow surface of the central ditch 9, and a space is reserved between the upper end and the inspection well outer cover plate 8 of the inspection well 1 to facilitate the installation of the inspection well inner insulation cover plate.

[0022] The structure of the inner insulation cover of the inspection well includes an STP vacuum insulation panel cover 4, an RPC concrete cover 5 and a stainless steel angle steel 6. First, the stainless steel angle steel 6 is placed on the upper end of the well wall 3 of the new insulation material. At the same time, in order to ensure the stability of the stainless steel angle steel 6, the stainless steel angle steel 6 is fixed to the inspection well wall 2 with a stainless steel anchor bolt 7. The RPC concrete cover 5 with the STP vacuum insulation panel cover 4 is placed on the upper layer of the stainless steel angle steel 6 to isolate the heat exchange between the inspection well and the external environment and prevent the vertical diffusion of heat.

[0023] STP vacuum insulation material has a large thermal resistance, good thermal insulation effect, and small thermal conductivity, which can effectively reduce the heat exchange between the ditch inspection well and the outside world. It is also light in weight, fast in construction, low in water absorption, and excellent in anti-seepage performance. After construction is completed, it basically does not absorb water, which greatly improves the service life of the insulation material in the ditch inspection well and reduces the maintenance cost after tunnel operation.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new material insulation inspection well for cold-region tunnels, the inspection well comprising an inspection well wall and an outer cover plate of the inspection well, characterized in that: Also includes: A new type of thermal insulation material well wall, wherein the new type of thermal insulation material well wall is installed on the inner wall of the inspection well; The new thermal insulation material well wall comprises: an STP vacuum insulation panel fixed to the inner wall of the inspection well wall by bonding mortar; at the same time, the STP vacuum insulation panel is fixed to the inner wall of the inspection well wall by a combination of fixed anchor bolts and anchors; the surface of the STP vacuum insulation panel is applied with plastering mortar; and, An inner thermal insulation cover plate for the inspection well, wherein the inner thermal insulation cover plate for the inspection well is placed on the well wall made of a new thermal insulation material; Among them, the inner insulation cover plate of the inspection well includes a stainless steel angle steel, an RPC concrete cover plate and an STP vacuum insulation board cover plate placed in sequence from bottom to top.

2. According to claim 1, a new material insulation inspection well for cold region tunnels is characterized by: The surface of the STP vacuum insulation panel is sprayed with an interface agent and applied with a plastering mortar.

3. According to claim 2, a new material insulation inspection well for cold region tunnels is characterized by: Alkali-resistant glass fiber mesh cloth is pressed between the STP vacuum insulation board and the plastering mortar.

4. According to claim 1, a new material insulation inspection well for cold region tunnels is characterized by: The side edges of the stainless steel angle steel are fixed to the wall of the inspection well through stainless steel anchor bolts.

5. A new material insulation inspection well for cold region tunnels according to any one of claims 1 to 4, characterized in that: The first end of the new thermal insulation material well wall is connected to the central ditch; the second end is placed in the space reserved between the inner thermal insulation cover plate of the inspection well and the outer cover plate of the inspection well.

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