Environment-friendly land-saving mud reservoir structure and construction method thereof

Abstract

The invention discloses an environment-friendly land-saving type mud reservoir structure which comprises a mud reservoir fence. The anti-seepage geomembrane is laid at the bottom and the periphery of the mud reservoir enclosure; the multiple rows of water collecting wells are arranged in the mud reservoir enclosure at intervals in the longitudinal direction and located above the anti-seepage geomembrane, and each row of water collecting wells is composed of a plurality of water collecting wells arranged at intervals in the transverse direction; every two adjacent water collecting wells which are transversely arranged are connected through the corresponding transverse water draining pipe plate, and every two adjacent water collecting wells which are longitudinally arranged are connected through the corresponding longitudinal water draining pipe plate; the drainage pipes are laid at the bottom of the mud reservoir fence at intervals and located above the anti-seepage geomembrane, and each drainage pipe is connected with the bottoms of the corresponding water collecting wells. The invention further discloses a construction method of the environment-friendly land-saving type mud reservoir structure. The method is wide in applicable construction scene, solves the problem of initial material consumption, does not involve any energy consumption, and is low-carbon, environment-friendly and economical.

Description

Technical Field

[0001] The present invention relates to the technical field of mud storage structure, and particularly relates to an environmentally friendly and land-saving mud storage structure and a construction method thereof. Background Art

[0002] Mud is a common product in the construction process of engineering fields such as construction and municipal engineering. There are generally two disposal methods: one is to temporarily store it in a mud storage and dispose of it by secondary off-site transportation after natural sedimentation; the other is to dispose of it by real-time off-site transportation using a tank truck. The former requires temporarily borrowing land and forming a mud storage by digging pits or building dams, which has high requirements for land use conditions and requires large open spaces. Moreover, the construction process destroys the original surface resources, the natural sedimentation time is relatively long, the turnover efficiency is low, and it is difficult to achieve mobile layout. The latter has a large volume due to the presence of a large amount of water in the mud, resulting in high transportation costs. In addition, the tank truck has high requirements for transportation conditions and is generally not applicable to scenarios with a large amount of mud such as river hydraulic dredging.

[0003] In recent years, with the increasingly harsh land use conditions and the increasing environmental protection requirements year by year, some mud dewatering and drying equipment has been gradually developed and applied in construction and municipal engineering with high surrounding environmental requirements. However, the layout of these equipment also requires a site and consumes a large amount of energy, resulting in high mud disposal costs and general economy. Therefore, it is urgent to carry out research on environmentally friendly and economical mud treatment methods applicable to multiple construction scenarios.

[0004] For this reason, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below is generated under this background. Summary of the Invention

[0005] One of the technical problems to be solved by the present invention is: to provide an environmentally friendly and land-saving mud storage structure in view of the deficiencies of the prior art, which is applicable to the construction mud treatment scenarios with tight land, complex environment and poor transportation conditions.

[0006] Another technical problem to be solved by the present invention is: to provide a construction method for the above-mentioned environmentally friendly and land-saving mud storage structure.

[0007] As an environmentally friendly and land-saving mud storage structure according to the first aspect of the present invention, it includes:

[0008] A mud storage enclosure, which is formed by enclosing with mud-filled pipe bags according to the on-site topography;

[0009] An anti-seepage geomembrane laid at the bottom and around the mud storage enclosure;

[0010] Several rows of catch wells, which are arranged at intervals longitudinally in the mud storage enclosure and are located above the anti-seepage geomembrane. Each row of catch wells is composed of several catch wells arranged at intervals transversely;

[0011] A number of longitudinal drain pipe plates and a number of transverse drain pipe plates. Two adjacent laterally arranged sump wells are connected by the transverse drain pipe plates, and two adjacent longitudinally arranged sump wells are connected by the longitudinal drain pipe plates. The number of longitudinal drain pipe plates and the number of transverse drain pipe plates arranged vertically and horizontally enclose and divide the mud storage into a number of mud filtration areas; and

[0012] A number of drain pipes are laid at intervals at the bottom of the mud storage enclosure and above the anti-seepage geomembrane. Each drain pipe is connected to the bottom of the corresponding number of sump wells for discharging the water collected by the sump wells to the outside.

[0013] In a preferred embodiment of the present invention, the mud storage enclosure is arranged in the river channel to be dredged of the dry river.

[0014] In a preferred embodiment of the present invention, a number of rivets arranged at circumferential intervals are used for fixing at the positions where the anti-seepage geomembrane contacts the top surface of the mud storage enclosure.

[0015] In a preferred embodiment of the present invention, the drain pipes and the sump wells are connected by socket joints, and the longitudinal drain pipe plates and the transverse drain pipe plates and the sump wells are connected by slot joints.

[0016] In a preferred embodiment of the present invention, small mud filling pipe bags or bag-shaped earth dams are arranged inside and outside the mud storage enclosure at the joints of the mud filling pipe bags.

[0017] As a construction method of the above-mentioned environmentally friendly and land-saving mud storage structure according to the second aspect of the present invention, the following steps are included:

[0018] Step S10, laying mud filling pipe bags according to the on-site terrain conditions so that the mud filling pipe bags enclose to form the outer contour of the mud storage enclosure;

[0019] Step S20, pumping various muds into the mud filling pipe bags by a mud pump and sealing them so that the mud filling pipe bags form a mud storage enclosure after being filled with mud;

[0020] Step S30, fully laying the anti-seepage geomembrane inside the mud storage enclosure and laying it along the surface of the mud filling pipe bags to the outside of the mud storage enclosure;

[0021] Step S40, arranging a number of rows of sump wells at intervals longitudinally inside the mud storage enclosure, and installing a number of longitudinal drain pipe plates, a number of transverse drain pipe plates and a number of drain pipes so that the number of longitudinal drain pipe plates and the number of transverse drain pipe plates arranged vertically and horizontally divide the mud storage enclosure into a number of mud filtration areas;

[0022] Step S50, pumping the mud into a number of mud filtration areas of the mud storage enclosure by a mud pump;

[0023] Step S60: The mud storage works normally, and the water collected in the sump is discharged through the drain pipe.

[0024] Step S70: After the mud after water filtration consolidates, several longitudinal drain pipe plates and several transverse drain pipe plates are pulled out, and mechanical excavation is used for external transportation.

[0025] In a preferred embodiment of the present invention, in step S20, when the construction period is tight, a coagulant and a flocculant are added to the mud pumped into the mud-filled pipe bag to accelerate the hardening of the mud in the pipe bag; when the mud storage is deep, multiple layers of mud-filled pipe bags need to be stacked.

[0026] In a preferred embodiment of the present invention, in step S30, a number of rivets arranged at circumferential intervals are used to fix the anti-seepage geomembrane on the top surface of the mud storage enclosure, and small mud-filled pipe bags or bag-shaped earth dams are arranged inside and outside the mud storage enclosure at the joint of the mud-filled pipe bags.

[0027] In a preferred embodiment of the present invention, in step S50, the mud surface is lower than the tops of the longitudinal drain pipe plates, the transverse drain pipe plates and the sump.

[0028] Due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0029] 1. The present invention is applicable to a wide range of construction scenarios, can adapt to complex environmental layouts, does not require excavation and filling to build pits, can be arranged in the cut-off construction river channel for river projects, and for slurry-out pile foundation construction located in sensitive use areas such as forest land and agricultural land, it can adapt to different terrains nearby without damaging the topsoil, relocating trees, etc.

[0030] 2. The present invention uses the generated mud to fill the pipe bag to form a mud storage enclosure, solving the problem of initial materials.

[0031] 3. The mud of the present invention is self-filtered and dried in-situ, and through the arrangement of drain pipe plates, the natural sedimentation and water filtration efficiency is enhanced, thereby shortening the sedimentation time, reducing the external transportation volume and the consumption volume, and not involving any energy consumption, being low-carbon, environmentally friendly and economical. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a plan view of the environmentally friendly and land-saving mud storage structure of the present invention.

[0034] Figure 2 is Figure 1 a sectional view taken along the A-A direction of Specific embodiments

[0035] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0036] Refer to Figure 1 and Figure 2 , what is shown in the figure is an environmentally friendly and land-saving mud storage structure, including a mud storage enclosure 100, an anti-seepage geomembrane 200, several rows of catch wells 300, several longitudinal drain pipe plates 400, several transverse drain pipe plates 500 and several drain pipes 600.

[0037] The mud storage enclosure 100 is formed by enclosing with mud-filled pipe bags 110 according to the on-site terrain. The present invention is mainly applied to river dredging projects. There is no land area available for arranging the mud storage along the line. It is preferred to arrange the mud storage enclosure 100 in the river channel to be dredged and dried. The specifications of the mud-filled pipe bags 110 are determined according to the depth of the mud storage. The pipe bags of the mud-filled pipe bags 110 are mature products, which are tubular geocontainers with water filtration function woven from materials such as polypropylene (PP) or polyester (PET). The mud-filled pipe bags 110 are laid along the available stacking space, which can adapt to any geology and terrain, enclose to form the outer contour of the mud storage, and use the filtered water of the filled slurry to form a mud retaining dam. Small mud-filled pipe bags or bag-shaped earth dams 120 are arranged in a stacked manner on the inner and outer sides of the mud storage enclosure 100 at the joints of the mud-filled pipe bags 110 to improve the structural strength of the weak parts of the mud storage enclosure 100.

[0038] The anti-seepage geomembrane 200 is laid at the bottom and around the mud storage enclosure 100 to prevent the slurry from seeping and leaking. If the mud storage is arranged on land, it can avoid polluting the original surface environment by the dredged sediment. The position where the anti-seepage geomembrane 200 contacts the top surface of the mud storage enclosure 100 is fixed by a number of circumferentially spaced rivets 210, ensuring the connection stability of the anti-seepage geomembrane 200.

[0039] Several rows of catch wells 300 are arranged at intervals longitudinally in the mud storage enclosure 100 and above the anti-seepage geomembrane 200. Each row of catch wells 300 is composed of several catch wells 310 arranged at intervals transversely. The catch wells 310 collect the water filtered out of the slurry and play a role in enhancing the overall stability effect of the drain pipe plate system.

[0040] Two adjacent laterally arranged catch wells 310 are connected by a lateral drain pipe plate 500, and two adjacent longitudinally arranged catch wells 310 are connected by a longitudinal drain pipe plate 400. The longitudinal drain pipe plate 400 and the lateral drain pipe plate 500 are connected to the catch well 310 by a socket type interface. The longitudinal drain pipe plate 400 and the lateral drain pipe plate 500 are made of mature plastic drain plates, which are vertically inserted into the mud in a continuous length, and a number of longitudinally arranged drain pipe plates 400 and a number of laterally arranged drain pipe plates 500 arranged in a crisscross pattern divide the mud storage enclosure 100 into several mud filter areas 101, increasing the efficiency of mud filtering and drainage.

[0041] A number of drain pipes 600 are laid at intervals at the bottom of the mud storage enclosure 100 and above the anti-seepage geomembrane 200. Each drain pipe 600 is connected to the bottom of the corresponding catch well 310. The drain pipe 600 and the catch well 310 are connected by a socket and spigot joint for discharging the water collected by the catch well 310 to the outside. The diameter of the drain pipe 600 is determined according to the drainage volume.

[0042] The construction method of the environmentally friendly and land-saving mud storage structure of the present invention includes the following steps:

[0043] Step S10: Lay the mud filling tube bags 110 according to the on-site terrain conditions so that the mud filling tube bags 110 enclose the outer contour of the mud storage enclosure 100; if the mud storage is on land, the subsequent requirements for mud filling and drainage of the tube bags need to be considered, and drainage ditches or catch pits are locally arranged on the inner and outer sides of the mud filling tube bags 110.

[0044] Step S20: Pump various types of mud into the mud filling tube bags 110 by a mud pump and seal them so that the mud filling tube bags 110 form the mud storage enclosure 100 after mud filling; when the construction period is tight, a coagulant and a flocculant are added to the mud pumped into the mud filling tube bags 110 to accelerate the hardening of the mud in the tube bags; when the mud storage is relatively deep, multiple layers of mud filling tube bags 110 need to be stacked. After the lower layer of tube bags is sealed, the upper layer of tube bags is laid and filled with mud.

[0045] Step S30: Fully lay the anti-seepage geomembrane 200 inside the mud storage enclosure 100 and lay it along the surface of the mud filling tube bags 110 to the outside of the mud storage enclosure 100; if necessary, a number of rivets 210 arranged at circumferential intervals are used to fix the anti-seepage geomembrane 200 on the top surface of the mud storage enclosure 100, and small mud filling tube bags or bag-shaped earth dams 120 are arranged inside and outside the mud storage enclosure 100 at the joints of the mud filling tube bags 110 to improve the stability of the overall structure.

[0046] Step S40: Arrange several rows of sump wells 300 at intervals longitudinally within the mud storage enclosure 100, and install several longitudinal drain pipe plates 400, several transverse drain pipe plates 500, and several drain pipes 600, such that the several longitudinally arranged longitudinal drain pipe plates 400 and the several transversely arranged transverse drain pipe plates 500 divide the mud storage enclosure 100 into several mud filtration areas 101 with a crisscross layout.

[0047] Step S50: Use a mud pump to pump the mud into the several mud filtration areas 101 of the mud storage enclosure 100, with the mud level lower than the tops of the longitudinal drain pipe plates 400, the transverse drain pipe plates 500, and the sump wells 300.

[0048] Step S60: During normal operation of the mud storage, use the drain pipes 600 to discharge the water collected by the sump wells 300.

[0049] Step S70: After the filtered mud has consolidated, pull out the several longitudinal drain pipe plates 400 and the several transverse drain pipe plates 500, and use mechanical excavation to transport the soil out.

[0050] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly and land-saving mud storage structure, characterized in that, Including: A mud storage enclosure, which is formed by surrounding with mud - filled pipe bags according to the site topography; An anti - seepage geomembrane laid at the bottom and around the mud storage enclosure; Several rows of catch wells, which are arranged at intervals longitudinally within the mud storage enclosure and above the anti - seepage geomembrane. Each row of catch wells consists of several catch wells arranged at intervals transversely; Several longitudinal drain pipe plates and several transverse drain pipe plates. Adjacent two transversely - arranged catch wells are connected by the transverse drain pipe plates, and adjacent two longitudinally - arranged catch wells are connected by the longitudinal drain pipe plates. The several longitudinal drain pipe plates and several transverse drain pipe plates arranged in a criss - cross pattern divide the mud storage enclosure into several mud filtration areas; and Several drain pipes, which are laid at intervals at the bottom of the mud storage enclosure and above the anti - seepage geomembrane. Each drain pipe is connected to the bottom of the corresponding several catch wells for discharging the water collected by the catch wells to the outside.

2. The environmentally friendly and land-saving mud storage structure according to claim 1, characterized in that The mud storage enclosure is arranged in the river channel to be dredged of the dry river.

3. The environmentally friendly and land-saving mud storage structure according to claim 1, wherein At the position where the anti - seepage geomembrane contacts the top surface of the mud storage enclosure, several rivets arranged at circumferential intervals are used for fixation.

4. The environmentally friendly and land-saving mud storage structure according to claim 1, wherein The drain pipes and the catch wells are connected by socket - and - spigot joints, and the longitudinal drain pipe plates and transverse drain pipe plates and the catch wells are connected by slot - type joints.

5. The environmentally friendly and land-saving mud storage structure according to claim 1, characterized in that, Small mud - filled pipe bags or bag - shaped earth dams are arranged inside and outside the mud storage enclosure at the joints of the mud - filled pipe bags.

6. A construction method of the environment-friendly and land-saving mud storage structure according to any one of claims 1 to 5, characterized in that, Including the following steps: Step S10: Lay the mud - filled pipe bags according to the site topographic conditions so that the mud - filled pipe bags enclose to form the outer contour of the mud storage enclosure; Step S20: Pump various types of mud into the mud - filled pipe bags with a mud pump and seal them so that the mud - filled pipe bags form a mud storage enclosure after being filled with mud; Step S30: Fully lay the anti - seepage geomembrane inside the mud storage enclosure and lay it along the surface of the mud - filled pipe bags to the outside of the mud storage enclosure; Step S40: Arrange several rows of catch wells at intervals longitudinally inside the mud storage enclosure, and install several longitudinal drain pipe plates, several transverse drain pipe plates and several drain pipes so that the several longitudinal drain pipe plates and several transverse drain pipe plates arranged in a criss - cross pattern divide the mud storage enclosure into several mud filtration areas; Step S50: Pump the mud into several mud filtration areas of the mud storage enclosure with a mud pump; Step S60: The mud storage works normally, and the water collected by the catch wells is discharged by the drain pipes; Step S70: After the filtered mud consolidates, pull out several longitudinal drain pipe plates and several transverse drain pipe plates, and use mechanical excavation to transport the soil out.

7. The construction method according to claim 6, characterized in that, In step S20, when the construction period is tight, a coagulant and a flocculant are added to the mud pumped into the mud - filled pipe bags to accelerate the hardening of the mud in the pipe bags; when the mud storage is deep, multiple layers of mud - filled pipe bags need to be stacked.

8. The construction method according to claim 6, characterized in that, In step S30, several rivets arranged at circumferential intervals are used to fix the anti - seepage geomembrane on the top surface of the mud storage enclosure, and small mud - filled pipe bags or bag - shaped earth dams are arranged inside and outside the mud storage enclosure at the joints of the mud - filled pipe bags.

9. The construction method according to claim 6, characterized in that, In step S50, the mud surface is lower than the tops of the longitudinal drain pipe plates, transverse drain pipe plates and catch wells.

Images