Modularized foundation pit dewatering canal structure special for soil body with large water content

Abstract

The utility model provides a special modularized foundation pit dewatering canal structure for a soil body with large water content. Comprising fence assemblies and drainage ditch mechanisms. The fence assembly comprises a plurality of fixing piles, the fixing piles are sequentially and tightly arranged on the edge of the foundation pit dewatering channel in the length direction of the foundation pit dewatering channel, and the lower ends of the fixing piles are inserted into a base layer of the bottom wall of the foundation pit dewatering channel. The drainage ditch mechanism comprises a plurality of drainage ditch assemblies, the drainage ditch assemblies are detachably connected in sequence in the length direction of the foundation pit dewatering ditch, each drainage ditch assembly comprises a ditch body frame, grating supporting layers and an outer side filtering layer, the grating supporting layers are fixedly connected to the side walls of the two sides of the ditch body frame, and the grating supporting layers cover the side walls of the ditch body frame; and the outer filter layer covers the grating support layers on the two sides of the ditch body frame and the bottom wall of the ditch body frame. The modularized drainage channel device special for the soil body with the large water content has the advantages of being stable in structure, high in drainage efficiency, convenient and fast to install, high in applicability and the like, and an effective solution is provided for drainage engineering in the environment of the soil body with the large water content.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering and water conservancy engineering, and in particular to a modular foundation pit dewatering channel structure specially used for soil with high water content. Background Art

[0002] In civil engineering, especially in soil environments with complex geological conditions and high water content, the design and construction of drainage channels often face huge challenges. Traditional drainage channels have poor stability in soils with high water content and are prone to collapse and deformation, which seriously affects the drainage effect and engineering safety. Therefore, the development of a special modular drainage channel device suitable for soils with high water content is of great significance to improve engineering quality and safety and reduce maintenance costs.

[0003] In the construction environment of some projects, the basement water level is shallow, the soil water content is high, the engineering geology is heavy silt soil and sandy loam, the soil permeability is extremely poor and the soil is prone to loss after containing water, resulting in poor drainage. The use of measures such as foundation pit well point dewatering and light well point dewatering cannot effectively solve the foundation pit dewatering problem. In order to ensure the normal progress of construction, it has been verified many times that the foundation pit open drainage method should be used to solve the dewatering problem.

[0004] The utility model patent with application number CN202320670899.2 discloses a drainage channel, including several channel modules, one end of the channel module is provided with a connection groove, the other end is fixedly connected with a connection block plugged with the connection groove, the top of the channel module is provided with a top cover, the top of the channel module is provided with a fixing groove, the top cover is fixedly connected with a fixing block matching with the fixing groove, the connection block is provided with a first rubber sleeve, the fixing block is provided with a second rubber sleeve, and two adjacent top covers are fixedly connected by fasteners. This application realizes the fixed connection between the top cover and the channel module, and fixes the two adjacent top covers by fasteners, further improving the firmness of the fixed connection between the two adjacent channel modules, and the stability of the formed drainage channel is better, and the stability of the drainage channel in use is also better.

[0005] The above patented technology is not suitable for use in soil with high water content, and does not provide a solution to the technical problems existing in the prior art. Utility Model Content

[0006] The purpose of the utility model is to provide a modular foundation pit drainage channel structure for soil with high water content to solve the problems raised in the above background technology:

[0007] (1) How to reduce soil loss caused by soil water content;

[0008] (2) How to prevent soil collapse on both sides of the drainage ditch;

[0009] (3) How to reduce siltation in sump pits?

[0010] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0011] A modular foundation pit drainage channel structure specially designed for soil with high water content;

[0012] Includes fence assembly and gutter mechanism;

[0013] The fence assembly includes a plurality of fixed piles, which are arranged closely in sequence at the edge of the foundation pit drainage channel along the length direction of the foundation pit drainage channel, and the lower ends of the fixed piles are inserted into the base of the bottom wall of the foundation pit drainage channel;

[0014] The drainage ditch mechanism includes a plurality of drainage ditch components, which are detachably connected in sequence along the length direction of the foundation pit drainage channel. The plurality of drainage ditch components include a ditch body frame, a grille support layer and an outer filter layer. The grille support layer is fixedly connected to the side walls on both sides of the ditch body frame, the grille support layer covers the side walls of the ditch body frame, and the outer filter layer covers the grille support layer on both sides of the ditch body frame and the bottom wall of the ditch body frame.

[0015] On the basis of the above technical solution, the present invention can also be improved as follows.

[0016] Furthermore, the fence assembly also includes a connecting rod and a plurality of positioning hoops, the plurality of positioning hoops correspond one to one with the plurality of fixed piles, the positioning hoops are fixedly sleeved on the outside of the fixed piles, and the connecting rods are connected and fixed to the positioning hoops on the outside of the plurality of fixed piles in turn.

[0017] Furthermore, it also includes a plurality of support rods, which correspond one to one with a plurality of gutter assemblies. The fence assembly is connected to the corresponding gutter assemblies through the support rods, one end of the support rod rests on the connecting rod of the fence assembly, and the other end of the support rod rests on the ditch body frame of the gutter assembly.

[0018] Furthermore, the grid support layer is a plastic grid.

[0019] Furthermore, the outer filter layer is a 300g / ㎡ geotextile.

[0020] Furthermore, a plurality of supports are fixedly connected to the bottom of the ditch body frame.

[0021] Furthermore, bamboo strips are buried at the bottom of the foundation pit drainage channel and covered with geotextile.

[0022] Furthermore, the soil layers on both sides of the foundation pit drainage channel are replaced with melon seed slices.

[0023] This modular foundation pit drainage channel structure specially designed for soil with high water content has the following advantages:

[0024] 1. Stable structure: Made of high-strength, corrosion-resistant materials and combined with the design of reinforcement ribs, the channel body has good stability in soil with high water content and is not prone to collapse and deformation.

[0025] 2. High drainage efficiency: By setting up an outer filter layer, it can effectively filter the moisture in the soil, improve drainage efficiency, reduce soil moisture content, and help improve the soil environment.

[0026] 3. Easy installation: The prefabricated modular design makes transportation and installation more convenient, shortens the construction period and reduces construction costs.

[0027] 4. Strong applicability: The utility model is suitable for various soil environments with high water content, such as swamps, wetlands, etc., and has broad application prospects.

[0028] The modular drainage channel device for soil with high water content of the utility model can be assembled according to actual engineering requirements and soil conditions during specific implementation. First, the size and shape of the drainage channel are determined according to engineering requirements, and then suitable materials are selected to make the modular channel body. Next, reinforcing ribs are arranged inside and outside the channel body to enhance the structural strength of the channel body. Then, an outer filter layer is laid on the ditch body frame to ensure that water can be effectively discharged and the stability of the channel body is ensured.

[0029] The utility model provides a modular drainage channel device specially designed for soil with high water content, which has the advantages of stable structure, high drainage efficiency, convenient installation and strong applicability, and provides an effective solution for drainage projects in soil environments with high water content. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a usage status diagram of an embodiment of the modular foundation pit dewatering channel structure specially used for soil with high water content.

[0031] Figure 2 yes Figure 1 Enlarged view of part A.

[0032] Figure 3 It is a partial top view of the drainage ditch mechanism in the embodiment of the modular foundation pit dewatering channel structure specially used for soil with high water content. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0034] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] See also Figures 1 to 3 .

[0037] The modular foundation pit drainage channel structure specially designed for soil with high water content comprises a drainage ditch mechanism, a plurality of support rods 300 and two groups of fence components.

[0038] The fence assembly includes a connecting rod 110, a plurality of positioning hoops 130 and a plurality of fixed piles 120. The plurality of positioning hoops 130 correspond to the plurality of fixed piles 120 one by one. The positioning hoops 130 are fixedly sleeved on the outside of the fixed piles 120. The plurality of fixed piles 120 are closely arranged in sequence along the length direction of the foundation pit drainage channel 610 at the edge of the foundation pit drainage channel 610. The lower ends of the fixed piles 120 are inserted into the base layer of the bottom wall of the foundation pit drainage channel 610. The connecting rod 110 is welded and fixed to the positioning hoops 130 on the outside of the plurality of fixed piles 120 in sequence.

[0039] The drainage ditch mechanism includes a plurality of drainage ditch components, and the plurality of drainage ditch components include a ditch body frame 210, a grid support layer 220 and an outer filter layer 230. The ditch body frame 210 is made of Q235 steel material with a specification of 4*4*4mm and is welded into a U-shaped open keel frame structure.

[0040] The grid support layer 220 is a plastic grid, which is fixedly connected to the side walls of the ditch frame 210. The outer plastic grid support is connected to the ditch frame 210 by binding. The grid support layer 220 completely covers the side walls of the ditch frame 210. The outer filter layer 230 covers the grid support layer 220 on both sides of the ditch frame 210 and the bottom wall of the ditch frame 210. The outer filter layer 230 is a 300g / ㎡ geotextile, and the length of each section should be controlled at 4m (for easy transportation and installation). Four support frames 240 are fixedly connected to the bottom of the ditch frame 210.

[0041] Several drainage ditch components are detachably connected in sequence along the length direction of the foundation pit drainage channel 610, and the ditch body frames 210 of two adjacent drainage ditch components are fixed by steel bar binding.

[0042] A plurality of support rods 300 correspond one to one with a plurality of gutter assemblies. The fence assembly is connected to the corresponding gutter assembly via the support rods 300. One end of the support rod 300 rests on the connecting rod 110 of the fence assembly, and the other end of the support rod 300 rests on the ditch body frame 210 of the gutter assembly.

[0043] Bamboo sheets 410 are buried at the bottom of the foundation pit drainage channel 610 and covered with geotextile. The soil layers on both sides of the foundation pit drainage channel 610 are replaced with melon seed slices 510 with good permeability (or soil with good permeability can also be used).

[0044] This embodiment is initially tried out in the Bengbu Fish Passage Project, which is located in the Heiniuzui Ecological Park on the north bank of the Huai River. According to the design geological survey documents, the basement water level is shallow, the soil water content is large, the engineering geology is heavy silt soil and sandy loam, the soil permeability is extremely poor and the soil is prone to loss after containing water, resulting in poor drainage. Measures such as foundation pit well point dewatering and light well point dewatering cannot effectively solve the foundation pit water problem.

[0045] During construction, the foundation pit drainage channel 610 is mechanically excavated. The bottom of the foundation pit drainage channel 610 can be reinforced with fir piles, and then bamboo panels 410 are laid and covered with geotextiles to improve the stability of the slope foot and prevent the soil at the slope foot from collapsing. After the drainage ditch is excavated, the foundation pit drainage channel 610 is manually laid. The soil on both sides of the foundation pit drainage channel 610 should be replaced with melon seed slices 510 with good permeability to improve the permeability. The collection pit uses Q235 steel with a specification of 4*4*4mm and a 2*2*2m (size can be determined according to the on-site conditions) open device. Other settings are the same as the ditch frame 210. A collection pit should be set every 40 meters. The setting of the foundation pit drainage channel 610 effectively solves the problem of open drainage of foundation pit drainage, ensures smooth drainage, saves the cost of cleaning drainage ditches, and reduces the risk of delays in construction period caused by water accumulation in the foundation pit due to poor drainage of the foundation pit.

[0046] In order to ensure the normal progress of construction, it has been verified many times that open drainage of foundation pit is appropriate to solve the precipitation problem. A modular drainage facility is used to effectively solve the following problems: 1. Open drainage of foundation pit precipitation; 2. Soil loss caused by water content in the soil; 3. Soil collapse on both sides of the drainage ditch; 4. Siltation of the collection pit.

[0047] The above is only one embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. A modular foundation pit drainage channel structure specially designed for soil with high water content, characterized by: Includes fence assembly and gutter mechanism; The fence assembly comprises a plurality of fixed piles (120), the plurality of fixed piles (120) being arranged closely in sequence at the edge of the foundation pit drainage channel (610) along the length direction of the foundation pit drainage channel (610), and the lower ends of the fixed piles (120) being inserted into the base layer of the bottom wall of the foundation pit drainage channel (610); The drainage ditch mechanism comprises a plurality of drainage ditch components, which are detachably connected in sequence along the length direction of the foundation pit drainage channel (610), and the plurality of drainage ditch components further comprise a ditch body frame (210), a grille support layer (220) and an outer filter layer (230), wherein the grille support layer (220) is fixedly connected to the side walls on both sides of the ditch body frame (210), the grille support layer (220) covers the side walls of the ditch body frame (210), and the outer filter layer (230) covers the grille support layer (220) on both sides of the ditch body frame (210) and the bottom wall of the ditch body frame (210).

2. The modular foundation pit drainage channel structure for soil with high water content according to claim 1 is characterized by: The fence assembly further comprises a connecting rod (110) and a plurality of positioning hoops (130), wherein the plurality of positioning hoops (130) correspond one to one with the plurality of fixing piles (120), the positioning hoops (130) are fixedly sleeved on the outside of the fixing piles (120), and the connecting rod (110) is connected and fixed to the positioning hoops (130) on the outside of the plurality of fixing piles (120) in turn.

3. The modular foundation pit drainage channel structure for soil with high water content according to claim 2 is characterized by: It also includes a plurality of support rods (300), the plurality of support rods (300) corresponding to a plurality of gutter assemblies one by one, the fence assembly and the corresponding gutter assemblies are connected via the support rods (300), one end of the support rod (300) abuts against the connecting rod (110) of the fence assembly, and the other end of the support rod (300) abuts against the ditch body frame (210) of the gutter assembly.

4. The modular foundation pit drainage channel structure for soil with high water content according to claim 1 is characterized by: The grid support layer (220) is a plastic grid.

5. The modular foundation pit drainage channel structure for soil with high water content according to claim 1 is characterized by: The outer filter layer (230) is a 300g / ㎡ geotextile.

6. The modular foundation pit drainage channel structure for soil with high water content according to claim 1 is characterized by: A plurality of support frames (240) are fixedly connected to the bottom of the ditch body frame (210).

7. The modular foundation pit drainage channel structure for soil with high water content according to claim 1 is characterized by: The bottom of the foundation pit drainage channel (610) is buried with bamboo sheets (410) and covered with geotextile.

8. The modular foundation pit drainage channel structure for soil with high water content according to claim 1 is characterized by: The soil layers on both sides of the foundation pit dewatering channel (610) are replaced with melon seed slices (510).

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