A construction method for strengthening the foundation structure of a silt geological building

Abstract

This invention provides a method for reinforcing the foundation of buildings in silty geological conditions, belonging to the field of construction technology. This method comprises a support layer, a barrier layer, a reinforcing layer, and a sealing layer. The support layer, used as a bottom support, includes recycled concrete and several stones vertically inserted and evenly arranged within the recycled concrete. The barrier layer, used to block soft, fluid silt, includes sandbags and gravel; the sandbags are evenly laid on the support layer, and the gravel fills and covers the sandbags. The reinforcing layer includes a reinforcement mechanism, which further includes either a steel mesh or an iron mesh, laid on the barrier layer. The sealing layer includes concrete poured onto the reinforcing layer. This invention solves the safety hazard problem in silty geological construction where uneven stress on the rigid layer leads to slippage, causing uneven settlement of the strata and resulting in construction overturning.

Description

Technical Field

[0001] This invention belongs to the field of construction technology, and more specifically, relates to a method for reinforcing the foundation of buildings in silty geological conditions. Background Technology

[0002] Silt formations have always been a challenge in construction. This is because silt formations have particularly poor engineering properties; their fluid plastic state frequently leads to borehole collapses and other adverse working conditions for excavators. Furthermore, the high viscosity of silty clay also commonly causes construction difficulties. In addition, due to the low bearing capacity and susceptibility to uneven settlement in silt formations, current methods of adding a rigid layer in silt geological construction often suffer from uneven stress distribution and slippage, resulting in uneven settlement during construction and posing a safety hazard of construction site overturning. Summary of the Invention

[0003] In view of this, the present invention provides a construction method for reinforcing the foundation of a building in silty geology, which can solve the safety hazard problems of uneven stress between rigid layers, easy slippage, uneven settlement of the strata, and overturning during construction.

[0004] This invention is implemented as follows:

[0005] A first aspect of the present invention provides a foundation reinforcement structure for buildings in silty geological conditions, comprising a support layer, a barrier layer, a reinforcing layer, and a sealing layer.

[0006] The support layer, used as a bottom support, includes recycled concrete and a number of stones vertically inserted into the recycled concrete and evenly arranged.

[0007] The barrier layer, used to block soft plastic silt, includes sandbags and gravel. The sandbags are evenly laid on the support layer, and the gravel fills and covers the sandbags.

[0008] The reinforcing layer, including a reinforcement mechanism, is laid on the barrier layer;

[0009] The sealing layer includes concrete poured onto the reinforcing layer.

[0010] Furthermore, the stones can also be made of any material, such as steel bars or iron rods.

[0011] Based on the above technical solution, the foundation reinforcement structure for silt geological structures of the present invention can be further improved as follows:

[0012] The thickness of the support layer is 3-5 cm.

[0013] The length of the stone is greater than the thickness of the support layer, and both the top and bottom ends of the stone protrude through the support layer.

[0014] The first aspect of the present invention provides a construction method for reinforcing the foundation of a building in silt-affected geological conditions, comprising the following steps:

[0015] S1: Lay the support layer. First, pour concrete on the bottom layer, then lay the auxiliary installation mechanism on top of the concrete layer, and insert the long strip stones vertically into the concrete layer through the auxiliary installation mechanism.

[0016] S2: Laying the barrier layer: After the concrete layer is completely dry, take measurements and lay out the lines. Evenly lay sandbags on the support layer, fill and cover the sandbags with the crushed stone, and compact the crushed stone.

[0017] S3: Lay the reinforcement layer, measure and mark the barrier layer, then lay the reinforcement mechanism horizontally on top of the barrier layer and perform grouting reinforcement;

[0018] S4: Laying the sealing layer: After the grouting reinforcement is completed, the last layer of concrete is poured to complete the sealing.

[0019] The technical effects of the construction method for reinforcing the foundation of a building in silt geology provided by the present invention are as follows: by setting up a support layer and embedding long strip stones inside, the friction between the layers is increased, the support area of ​​the support layer is increased, sliding is prevented, the interlayer is more stable, uneven settlement of the strata is prevented, and construction collapse is avoided.

[0020] Based on the above technical solution, the construction method of the silt geological building foundation reinforcement structure of the present invention can be further improved as follows:

[0021] Furthermore, step S3 includes:

[0022] Step 1: Lay the reinforcement mechanism flat on top of the barrier layer;

[0023] Step 2: Determine the grouting reinforcement area above the barrier layer;

[0024] Step 3: Drill the first layer of holes at the bottom of the grouting reinforcement surface as the first row of holes, and drill the second layer of holes at a set position above the first row of holes as grouting reinforcement holes.

[0025] Step 4: Drill the first row of holes in sections to a certain depth, and then drill the grouting reinforcement holes one by one from left to right to the depth of different sections and grout them; the grouting construction of the first layer of grouting reinforcement holes is completed;

[0026] Step 5: Drill the second layer of grouting reinforcement holes at the designated position above the first layer of grouting reinforcement holes to the designed segment depth and perform grouting; after the second layer of grouting construction is completed, drill all the grouting reinforcement holes in this layer to the designed segment depth. At this time, the grouting reinforcement holes in this layer are used as induced splitting holes.

[0027] Continue drilling the next layer in sequence according to the above steps until the grouting of that section is completed;

[0028] Step 6: Perform drilling and grouting reinforcement in the set order. Direct grouting reinforcement is used in the middle area to be reinforced until the grouting of this section is completed.

[0029] The drilling can be horizontal, downward angle, upward angle, or external insertion. The opening depth is lower than the required drilling depth. The grouting reinforcement holes are drilled one by one to the designed segment depth, starting from both sides and moving towards the middle. Grouting reinforcement is carried out in the order of bottom, then left and right, and finally top.

[0030] Furthermore, step S1 includes:

[0031] Step 1: Measure and lay out the lines;

[0032] Step 2: Mix and pour the recycled concrete to make the recycled concrete thickness 3-5cm.

[0033] Step 2: Lay a layer of auxiliary installation mechanism on the concrete;

[0034] Step 3: Insert the long strip stone into the concrete to form a support using an auxiliary installation mechanism. The bottom end of the long strip stone protrudes through the recycled concrete layer, and the top end of the long strip stone protrudes from the top of the concrete layer.

[0035] Step 4: Remove the auxiliary installation mechanism.

[0036] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting up auxiliary installation mechanisms, the installation becomes more orderly, and the long strip stones are arranged more neatly. By setting up long strip stones, the surface contact friction is increased, making the support layer more uniformly stressed, the layer more stable, preventing insufficient support, and avoiding subsidence of the construction stratum.

[0037] Furthermore, a second layer of holes is drilled 30-50cm above the first row of holes as grouting reinforcement holes.

[0038] The steps for using the auxiliary installation mechanism in S1 are as follows:

[0039] Step 1: First, lay the auxiliary installation mechanism flat on the concrete. Then, use the auxiliary installation mechanism to vertically pass through the concrete to reinforce it. Each pair of long strip stones with a spacing of 300mm forms a fixed unit. By evenly spreading the long strip stones on the concrete, the integrity of the concrete is constrained, and a whole structure is effectively formed.

[0040] Step 2: Use grouting technology to fill the horizontal joints at the bottom of the stone blocks to enhance the integrity of the concrete.

[0041] The reinforcement mechanism further includes either a steel mesh or an iron mesh. The auxiliary installation mechanism includes a porous mesh structure such as an iron mesh or a wire mesh.

[0042] The beneficial effects of adopting the above-mentioned improvement scheme are: by setting up a reinforcement mechanism, the barrier layer and the reinforcement layer are laid more tightly, preventing the construction layer from overturning and collapsing.

[0043] Furthermore, the drilling was horizontal.

[0044] By setting up a support layer and embedding long, narrow stones inside, the interlayer friction is increased, resulting in a larger support area, preventing slippage, and making the layers more stable. This prevents uneven ground settlement and avoids construction collapse. The auxiliary installation mechanism makes installation more orderly, with the long, narrow stones arranged more neatly. The use of long, narrow stones increases surface contact friction, making the support layer more evenly stressed and the surface more stable, preventing insufficient support and ground subsidence during construction. The reinforcement mechanism ensures a tighter fit between the barrier layer and the reinforcement layer, preventing the construction layer from overturning and collapsing. Attached Figure Description

[0045] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A three-dimensional schematic diagram of a foundation reinforcement structure for buildings in silty geological conditions;

[0047] Figure 2 A three-dimensional schematic diagram of a support layer structure for reinforcing the foundation of a building in silty geological conditions;

[0048] Figure 3 A schematic cross-section of a foundation reinforcement structure for buildings in silty soil geology;

[0049] Figure 4A flowchart illustrating a construction method for reinforcing the foundation of a building in silty geological conditions;

[0050] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0051] 1. Support layer; 2. Barrier layer; 3. Reinforcing layer; 4. Sealing layer; 5. Reinforcing mechanism; 6. Auxiliary installation mechanism; 7. Long strip stone blocks. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0057] like Figure 1-3 The image shows a first embodiment of a foundation reinforcement structure for silt-affected geological structures provided by the first aspect of the present invention. In this embodiment, it comprises a support layer 1, a barrier layer 2, a reinforcing layer 3, and a sealing layer 4.

[0058] Support layer 1, used as bottom support, includes recycled concrete and several stones vertically inserted into the recycled concrete and evenly arranged.

[0059] Barrier layer 2 is used to block soft plastic silt, including sandbags and gravel. The sandbags are evenly laid on the support layer 1, and the gravel fills and covers the sandbags.

[0060] The reinforcing layer 3, including the reinforcing mechanism 5, is laid on the barrier layer 2;

[0061] The sealing layer 4 includes concrete poured onto the reinforcing layer 3.

[0062] In the above technical solution, the thickness of the support layer 1 is 3~5cm.

[0063] Preferably, the thickness of the support layer 1 is 4 cm.

[0064] In the above technical solution, the length of the stone is greater than the thickness of the support layer 1, and the top and bottom ends of the stone both protrude through the support layer 1.

[0065] like Figure 4 The diagram shown is a flowchart of a construction method for reinforcing a foundation structure in silt-affected geological conditions, provided by a second aspect of the present invention. The method includes the following steps:

[0066] S1: Lay the support layer. First, pour concrete on the bottom layer, then lay the auxiliary installation mechanism on top of the concrete layer, and insert the long strip stones vertically into the concrete layer through the auxiliary installation mechanism.

[0067] S2: Laying the barrier layer: After the concrete layer is completely dry, take measurements and lay out the lines. Evenly lay sandbags on the support layer, fill and cover the sandbags with the crushed stone, and compact the crushed stone.

[0068] S3: Lay the reinforcement layer, measure and mark the barrier layer, then lay the reinforcement mechanism horizontally on top of the barrier layer and perform grouting reinforcement;

[0069] S4: Laying the sealing layer: After the grouting reinforcement is completed, the last layer of concrete is poured to complete the sealing.

[0070] Furthermore, in the above technical solution, step S3 includes:

[0071] Step 1: Lay the reinforcement mechanism 5 flat on top of the barrier layer 2;

[0072] Step 2: Determine the grouting reinforcement area above barrier layer 2;

[0073] Step 3: Drill the first layer of holes at the bottom of the grouting reinforcement surface as the first row of holes, and drill the second layer of holes at a set position above the first row of holes as grouting reinforcement holes.

[0074] Step 4: Drill the first row of holes in sections to a certain depth, and then drill the grouting reinforcement holes one by one from left to right to the depth of different sections and grout them; the grouting construction of the first layer of grouting reinforcement holes is completed;

[0075] Step 5: Drill the second layer of grouting reinforcement holes at the designated position above the first layer of grouting reinforcement holes to the designed segment depth and perform grouting; after the second layer of grouting construction is completed, drill all the grouting reinforcement holes in this layer to the designed segment depth. At this time, the grouting reinforcement holes in this layer are used as induced splitting holes.

[0076] Continue drilling the next layer in sequence according to the above steps until the grouting of that section is completed;

[0077] Step 6: Perform drilling and grouting reinforcement in the set order. Direct grouting reinforcement is used in the middle area to be reinforced until the grouting of this section is completed.

[0078] Furthermore, in the above technical solution, step S1 includes:

[0079] Step 1: Measure and lay out the lines;

[0080] Step 2: Mix and pour the recycled concrete to make the recycled concrete thickness 3-5cm.

[0081] Step 2: Lay a layer of auxiliary installation mechanism 6 on the concrete;

[0082] Step 3: Insert the long strip stone 7 into the concrete using the auxiliary installation mechanism 6 to form a support. The bottom end of the long strip stone 7 protrudes through the recycled concrete layer, and the top end of the long strip stone 7 protrudes from the upper end of the concrete layer.

[0083] Step 4: Remove the auxiliary installation mechanism 6.

[0084] Preferably, the thickness of the recycled concrete is 4 cm.

[0085] Furthermore, in the above technical solution, a second layer of holes is drilled 30-50cm above the first row of holes as grouting reinforcement holes.

[0086] Preferably, a second layer of holes is drilled 40cm above the first row of holes as grouting reinforcement holes.

[0087] The steps for using the auxiliary installation mechanism in S1 are as follows:

[0088] Step 1: First, lay the auxiliary installation mechanism flat on the concrete. Then, use the auxiliary installation mechanism to vertically pass through the concrete to reinforce it. Each pair of long strip stones with a spacing of 300mm forms a fixed unit. By evenly spreading the long strip stones on the concrete, the integrity of the concrete is constrained, and a whole structure is effectively formed.

[0089] Step 2: Use grouting technology to fill the horizontal joints at the bottom of the stone blocks to enhance the integrity of the concrete.

[0090] The reinforcement mechanism further includes either a steel mesh or an iron mesh. The auxiliary installation mechanism includes a porous mesh structure such as an iron mesh or a wire mesh.

[0091] Furthermore, in the above technical solution, the drilling is horizontal drilling.

[0092] Example 1:

[0093] The construction of the foundation reinforcement structure for silt-damped geological structures is first carried out by laying the following layers: support layer 1, barrier layer 2, reinforcement layer 3, and sealing layer 4.

[0094] First, a support layer is laid by pouring recycled concrete onto the ground to a thickness of 4cm, forming the foundation for the support layer. An auxiliary installation mechanism is then laid on top of this concrete support layer. Long, rectangular stones are inserted into the concrete according to the holes in the wire mesh to form supports, with the bottom of the stones protruding through the recycled concrete layer and the top of the stones protruding from the top of the concrete layer. The auxiliary installation mechanism is first laid flat on the concrete layer, and then the long, rectangular stones are vertically inserted through the mechanism for reinforcement. Two long, rectangular stones spaced 300mm apart form a fixed unit. By evenly covering the concrete with these stones, the overall integrity of the concrete is constrained, effectively forming a unified structure. The auxiliary installation mechanism is then removed.

[0095] Then, the barrier layer 2 is laid. Sandbags are evenly laid on the support layer 1, and gravel is filled and covered on the sandbags to form the barrier layer 2.

[0096] Then, the reinforcing layer 3 is laid, with the reinforcement mechanism laid flat above the barrier layer 2. A grouting reinforcement area is defined above the barrier layer 2. A first row of holes is drilled at the bottom of the grouting reinforcement surface, and a second row of holes is drilled at a designated position above the first row as grouting reinforcement holes. The first row of holes is drilled in sections to a certain depth, and the grouting reinforcement holes are drilled one by one from left to right to different depths and grouting is performed. The grouting of the first layer of grouting reinforcement holes is completed. Then, a second layer of grouting reinforcement holes is drilled at a designated position above the first layer to the designed section depth and grouting is performed. After the second layer of grouting is completed, all grouting reinforcement holes in this layer are drilled to the designed section depth; at this point, the grouting reinforcement holes in this layer are used as induced splitting holes. The laying of the reinforcing layer 3 is completed. Drilling of the next layer is performed sequentially according to the above steps, with direct grouting reinforcement used in the middle reinforcement area; until the sealing layer 4 is laid.

[0097] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A construction method for reinforcing the foundation of a building in silty geological conditions, characterized in that, The foundation reinforcement structure for silt-dammed geological structures consists of a support layer, a barrier layer, a reinforcement layer, and a sealing layer. The support layer, used as a bottom support, includes recycled concrete and a number of stones vertically inserted into the recycled concrete and evenly arranged. The barrier layer, used to block soft plastic silt, includes sandbags and gravel. The sandbags are evenly laid on the support layer, and the gravel fills and covers the sandbags. The reinforcing layer, including a reinforcement mechanism, is laid on the barrier layer; The sealing layer includes concrete poured onto the reinforcing layer; The thickness of the support layer is 3-5 cm; The length of the stone is greater than the thickness of the support layer, and both the top and bottom ends of the stone protrude through the support layer. The construction method includes the following steps: S1: Lay the support layer. First, pour concrete on the bottom layer, then lay the auxiliary installation mechanism on top of the concrete layer, and insert the long strip stones vertically into the concrete layer through the auxiliary installation mechanism. S2: Laying the barrier layer: After the concrete layer is completely dry, take measurements and lay out the lines. Evenly lay sandbags on the support layer, fill and cover the sandbags with the crushed stone, and compact the crushed stone. S3: Lay the reinforcement layer, measure and mark the barrier layer, then lay the reinforcement mechanism horizontally on top of the barrier layer and perform grouting reinforcement; S4: Laying the sealing layer: After the grouting reinforcement is completed, the last layer of concrete is poured to complete the sealing. The steps in S3 include: Step 1: Lay the reinforcement mechanism flat on top of the barrier layer; Step 2: Determine the grouting reinforcement area above the barrier layer; Step 3: Drill the first layer of holes at the bottom of the grouting reinforcement surface as the first row of holes, and drill the second layer of holes at a set position above the first row of holes as grouting reinforcement holes. Step 4: Drill the first row of holes in sections to a certain depth, and then drill the grouting reinforcement holes one by one from left to right to the depth of different sections and grout them; the grouting construction of the first layer of grouting reinforcement holes is completed; Step 5: Drill the second layer of grouting reinforcement holes at the designated position above the first layer of grouting reinforcement holes to the designed segment depth and perform grouting; after the second layer of grouting construction is completed, drill all the grouting reinforcement holes in this layer to the designed segment depth. At this time, the grouting reinforcement holes in this layer are used as induced splitting holes. Continue drilling the next layer in sequence according to the above steps until the grouting of that section is completed; Step 6: Perform drilling and grouting reinforcement in the set order. Direct grouting reinforcement is used in the middle area to be reinforced until the grouting of this section is completed.

2. The construction method for a foundation reinforcement structure in silt-affected geological formations according to claim 1, characterized in that, The steps in S1 include: Step 1: Measure and lay out the lines; Step 2: Mix and pour the recycled concrete so that the thickness of the poured recycled concrete layer is 3-5cm. Step 2: Lay a layer of auxiliary installation mechanism on the concrete; Step 3: Insert the long strip stone into the concrete to form a support using an auxiliary installation mechanism. The bottom end of the long strip stone protrudes through the recycled concrete layer, and the top end of the long strip stone protrudes from the top of the concrete layer. Step 4: Remove the auxiliary installation mechanism.

3. The construction method for a foundation reinforcement structure in silt-affected geological formations according to claim 2, characterized in that, Drill a second layer of holes 30-50cm above the first row of holes as grouting reinforcement holes.

4. The construction method for a foundation reinforcement structure in silt-affected geological formations according to claim 3, characterized in that, The steps for using the auxiliary installation mechanism in S1 are as follows: Step 1: First, lay the auxiliary installation mechanism flat on the concrete. Then, use the auxiliary installation mechanism to vertically pass through the concrete to reinforce it. Each pair of long strip stones with a spacing of 300mm forms a fixed unit. By evenly spreading the long strip stones on the concrete, the integrity of the concrete is constrained, and a whole structure is effectively formed. Step 2: Use grouting technology to fill the horizontal joints at the bottom of the stone blocks to enhance the integrity of the concrete.

5. The construction method for a foundation reinforcement structure in silt-affected geological formations according to claim 4, characterized in that, The auxiliary installation mechanism includes iron mesh or wire mesh; the reinforcement mechanism also includes either steel mesh or iron mesh.

6. The construction method for a foundation reinforcement structure in silt-affected geological formations according to claim 5, characterized in that, The drilling was done horizontally.

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