CN212380915U

CN212380915U - Assembled cable trench

Info

Publication number: CN212380915U
Application number: CN202020953281.3U
Authority: CN
Inventors: 赖鼎森; 翁来峰; 李瀛; 毛建飞; 高东伟; 胡乐民; 史祝; 袁保珍; 陈怡翔; 丁汀; 丁一; 方华; 胡晋; 孟治霖; 王东武; 杨菲; 俞梦乔; 张琼芳; 赵巍; 钟丽娜
Original assignee: China United Engineering Corp Ltd
Current assignee: China United Engineering Corp Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-01-19
Anticipated expiration: 2030-05-29

Abstract

The utility model provides an assembled cable pit, structural design is reasonable, construction quality is good, the construction is simple and convenient, waterproof performance is good, with little, with low costs of steel volume. One end of the prefabricated cable trench main body is protruded to form a protruded part, and the other end of the prefabricated cable trench main body is recessed inwards to form an inwards recessed part; the prefabricated cable trench main body is in multiple sections, the prefabricated cable trench main bodies are sequentially overlapped end to end, when two adjacent sections of prefabricated cable trench main bodies are overlapped, the protruding part of one section of the prefabricated cable trench main body is inserted into the inner concave part of the other section of the prefabricated cable trench main body, a water stopping material is arranged at a gap between the protruding part and the inner concave part, and meanwhile, a filling material is filled in the residual gap between the protruding part and the inner concave part; the side surface of the protruding part is a slope surface, the bottom of the protruding part is a plane, the side surface of the concave part is a plane, and the bottom of the concave part is a slope surface; or the side surface of the protruding part is a plane, the bottom of the protruding part is a slope surface, the side surface of the concave part is a slope surface, and the bottom of the concave part is a plane.

Description

Assembled cable trench

Technical Field

The utility model relates to an assembled cable pit belongs to the power equipment field.

Background

The cable trench is a power construction structure, mainly provides underground running space for cable facilities, and plays a role in isolating the external soil environment and preventing underground water from permeating and soaking the cable. In structural terms, cable ducts are now divided into cast-in-place concrete structures and precast concrete structures, and cast-in-place concrete structures are the mainstream.

And the molding of the cable duct is complex, so that the formwork is difficult to support and the formwork supporting precision is low. And because the length of the cable trench is longer than that of the common concrete, the structure is easy to crack. The construction period is increasingly shortened nowadays, the labor cost is continuously increased, and the field construction quality is difficult to guarantee. The cast-in-place cable trench has the defects of long construction period, high cost and difficulty in mastering the construction quality due to various problems.

The existing assembly type cable trench has the problems of high manufacturing cost, large steel consumption, easy water seepage of a connecting joint, difficult construction in reality and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, construction quality is good, the construction is simple and convenient, waterproof performance is good, with little, the with low costs assembled cable pit of steel volume.

The utility model provides a technical scheme that above-mentioned problem adopted is: an assembled cable trench comprises a prefabricated cable trench main body and a cable support; the cable bracket is arranged in the prefabricated cable trench main body; the method is characterized in that: one end of the prefabricated cable trench main body is protruded to form a protruded part, and the other end of the prefabricated cable trench main body is recessed inwards to form an inwards recessed part; the prefabricated cable trench main body is in multiple sections, the prefabricated cable trench main bodies are sequentially overlapped end to end, when two adjacent sections of prefabricated cable trench main bodies are overlapped, the protruding part of one section of the prefabricated cable trench main body is inserted into the inner concave part of the other section of the prefabricated cable trench main body, a water stopping material is arranged at a gap between the protruding part and the inner concave part, and meanwhile, a filling material is filled in the residual gap between the protruding part and the inner concave part; the side surface of the protruding part is a slope surface, the bottom of the protruding part is a plane, the side surface of the concave part is a plane, and the bottom of the concave part is a slope surface; or the side surface of the protruding part is a plane, the bottom of the protruding part is a slope surface, the side surface of the concave part is a slope surface, and the bottom of the concave part is a plane.

Cable support adopt pre-buried angle steel or A-frame, pre-buried angle steel or A-frame insert the lateral wall of prefabricated cable pit main part fixedly.

The water stop material of the utility model adopts the water swelling material.

The water stop material of the utility model adopts a closed cell expanded polyethylene foam rod.

Filling material adopt silicone sealant and cement mortar, silicone sealant fills in the inside, the parcel lives stagnant water material, cement mortar fills in the outside, the parcel lives silicone sealant.

The cross section of the protruding part is U-shaped, and the cross section of the inner concave part is U-shaped.

Compared with the prior art, the utility model, have following advantage and effect:

(1) the utility model discloses a prefabricated construction, but the modular production improves the construction quality of structure, reduces the wet operation of job site.

(2) The utility model discloses a multistage structure concatenation forms, has avoided the cable pit as the difficult problem of overlength structure construction, has avoided the overlength structure to pour the back shrink and the fissured problem that produces.

(3) The utility model discloses it is convenient to be under construction, can accelerate construction speed, reduce construction period by a wide margin, reduces the human cost at the project scene.

(4) The utility model discloses set up stagnant water material and filler material, improved the waterproof performance of junction effectively, avoided traditional assembled structural connection node to become the problem of infiltration point easily.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is the utility model discloses structural schematic when adjacent two sections prefabricated cable pit main parts overlap joint.

Fig. 3 is the utility model discloses two sections adjacent prefabricated cable pit main part overlap joint's schematic structure diagram.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Referring to fig. 1-3, the present invention includes a prefabricated cable trench main body 1 and a cable support 2.

The prefabricated cable trench main body 1 forms a space structure for protecting cables.

The cable holder 2 is installed in the prefabricated cable trench main body 1. The cable support 2 can be an embedded angle steel or a triangular support, and the embedded angle steel or the triangular support is inserted into the side wall of the prefabricated cable trench main body 1 to be fixed and used for supporting the internal cable.

One end of the prefabricated cable trench main body 1 is protruded to form a protruding part 3, and the other end is inwards concave to form an inwards concave part 4. The prefabricated cable trench main body 1 is in multiple sections, the prefabricated cable trench main body 1 is sequentially overlapped end to form a splicing structure, when two adjacent sections of prefabricated cable trench main bodies 1 are overlapped, the protruding part 3 of one section of the prefabricated cable trench main body 1 is inserted into the concave part 4 of the other section of the prefabricated cable trench main body 1, a water stopping material 5 is arranged at a gap between the protruding part 3 and the concave part 4, and the water stopping material 5 can be a closed-cell expanded polyethylene foam rod and the like; simultaneously, it has filling material 6 to fill in the remaining gap department between portion 3 and the interior recess 4 of choosing, and filling material can select for use silicone sealant 7 and add cement mortar 8 etc. and silicone sealant 7 fills in, wraps up sealing material 5, and cement mortar 8 fills in the outside, wraps up silicone sealant 7. The water stopping material 5 and the filling material 6 are intended to ensure the impermeability at the structural lap joint.

The cross section of the protruding part 3 is U-shaped, and the cross section of the concave part 4 is U-shaped and corresponds to the shape of the protruding part 3. The side surface of the protruding part 3 is a slope surface, the bottom part is a plane, the side surface of the concave part 4 is a plane, and the bottom part is a slope surface; or the side surface of the protruding part 3 is a plane, the bottom is a slope surface, the side surface of the concave part 4 is a slope surface, and the bottom is a plane; so structure, it is more convenient to install, domatic and plane form the space that the area angle was just the everywhere width is different, and the purpose is guaranteed also to provide the required width of inserting in elasticity stagnant water material under the condition that has reasonable construction error. In the embodiment, the side surface of the protruding part 3 is a slope surface, and the purpose of the slope surface is to ensure that the larger opening is positioned outside the cable trench after splicing is completed, so that subsequent construction of water stopping materials is facilitated; the bottom of the protruding part 3 is a plane, and the purpose is to ensure that the larger part of the opening is positioned at the top of the bottom plate of the cable trench instead of the bottom plate after splicing is completed, so that construction is facilitated.

The thickness of the thicker part of the side surface of the protruding part 3 is half of the thickness of the plate of the prefabricated cable trench main body 1, and the thickness of the thinner part of the side surface of the protruding part 3 is one third of the thickness of the plate of the prefabricated cable trench main body 1. The thickness of the side face of the inner concave part 4 is two thirds of the thickness of the plate of the prefabricated cable trench main body 1, the thickness of the front end of the bottom of the inner concave part 4 is two thirds of the thickness of the plate of the prefabricated cable trench main body 1, and the thickness of the root part is one third of the thickness of the plate of the prefabricated cable trench main body 1. After the splicing is completed, the combined plate thickness of the root parts at the thicker parts is close to the plate thickness of one side wall or the bottom plate. The gap after splicing at the thinner part can allow for plugging in the water stop material.

The utility model discloses a concrete step of construction as follows:

1) excavating a foundation pit, laying a cushion layer and leveling;

2) hoisting the prefabricated cable trench, sequentially hoisting the prefabricated cable trench from the head cable trench to the tail cable trench, and placing the prefabricated cable trench close to the tail cable trench;

3) stuffing water-stopping materials and pointing and filling by using fillers;

4) and cement mortar and other materials are used for slope finding at the bottom of the cable trench.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. An assembled cable trench comprises a prefabricated cable trench main body and a cable support; the cable bracket is arranged in the prefabricated cable trench main body; the method is characterized in that: one end of the prefabricated cable trench main body is protruded to form a protruded part, and the other end of the prefabricated cable trench main body is recessed inwards to form an inwards recessed part; the prefabricated cable trench main body is in multiple sections, the prefabricated cable trench main bodies are sequentially overlapped end to end, when two adjacent sections of prefabricated cable trench main bodies are overlapped, the protruding part of one section of the prefabricated cable trench main body is inserted into the inner concave part of the other section of the prefabricated cable trench main body, a water stopping material is arranged at a gap between the protruding part and the inner concave part, and meanwhile, a filling material is filled in the residual gap between the protruding part and the inner concave part; the side surface of the protruding part is a slope surface, the bottom of the protruding part is a plane, the side surface of the concave part is a plane, and the bottom of the concave part is a slope surface; or the side surface of the protruding part is a plane, the bottom of the protruding part is a slope surface, the side surface of the concave part is a slope surface, and the bottom of the concave part is a plane.

2. The fabricated cable trench of claim 1, wherein: the cable support adopt pre-buried angle steel or A-frame, pre-buried angle steel or A-frame insert the lateral wall of prefabricated cable pit main part fixedly.

3. The fabricated cable trench of claim 1, wherein: the water-stop material is a water-swelling material.

4. The fabricated cable trench of claim 3, wherein: the water-stopping material adopts a closed-cell expanded polyethylene foam rod.

5. The fabricated cable trench of claim 1, wherein: the filling material adopts silicone sealant and cement mortar, the silicone sealant is filled inside to wrap the water-stop material, and the cement mortar is filled outside to wrap the silicone sealant.

6. The fabricated cable trench of claim 1, wherein: the cross section of the protruding part is U-shaped, and the cross section of the concave part is U-shaped.