Construction method of soft foundation replacement temporary road based on fluidized solidified soil

Abstract

The application relates to a construction method of a soft foundation replacement temporary road based on a flow state solidified soil, which is arranged on a soft soil layer, the soft soil layer comprising a first construction area and a second construction area, and comprising the following steps: solidifying the soft soil layer in the first construction area; after the soft soil in the first construction area is solidified, a first construction section is formed by digging at a construction position corresponding to the temporary road in the first construction area; a first temporary road is constructed on the first construction section; the soft soil layer in the second construction area is solidified; after the soft soil in the second construction area is solidified, the soft soil in the second construction area is replaced, and the required materials for replacement are transported through the first temporary road; a second temporary road is constructed on the top of the second construction area, the first construction area is replaced, and the required materials for replacement are transported through the second temporary road.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road construction, in particular to a construction method of soft foundation replacement temporary road based on fluidized solidified soil. BACKGROUND

[0002] Soft foundation replacement is a common sub-item project in highway and railway engineering construction, which is mainly caused by the fact that the route passes through a part of the section with soft soil, which cannot meet the bearing capacity requirement of highway or railway, and the soft soil needs to be removed and replaced with fillers with good water permeability or high strength and good stability. When there is no existing road around the replacement area and the replacement area is large, it is difficult to remove the soft soil and transport the replacement fillers, and only a certain position at the edge of the replacement area can be used for loading or unloading, which is low in construction efficiency, and even part of the surrounding land needs to be temporarily requisitioned as a construction loading or unloading area, which is poor in economy and construction efficiency. SUMMARY

[0003] The present application aims to overcome the defects of the prior art and provide a construction method of soft foundation replacement temporary road based on fluidized solidified soil, which can facilitate the transfer of soft soil in the soft soil layer by constructing a temporary road on the soft soil layer.

[0004] The technical solution for achieving the above-mentioned purpose is a construction method of soft foundation replacement temporary road based on fluidized solidified soil, which is arranged on a soft soil layer, the soft soil layer includes a first construction area and a second construction area, and includes the following steps:

[0005] Solidify the soft soil layer in the first construction area, and after the solidification of the soft soil in the first construction area is completed, remove the soft soil at the construction position of the temporary road in the first construction area to form a first construction section;

[0006] Construct a first temporary road on the first construction section;

[0007] Solidify the soft soil layer in the second construction area, and after the solidification of the soft soil in the second construction area is completed, replace the soft soil in the second construction area, and transport the materials required for replacement through the first temporary road;

[0008] Construct a second temporary road on the top of the second construction area, replace the soft soil in the first construction area, and transport the materials required for replacement through the second temporary road.

[0009] Further, when solidifying the soft soil layer in the first construction area, a soft soil solidifying agent is provided, and the soft soil solidifying agent is added to the soft soil layer in the first construction area to solidify the soft soil layer in the first construction area.

[0010] Further, after adding the soft soil stabilizer to the soft soil layer in the first construction area, the first construction area is stirred.

[0011] Further, when the soft soil layer in the second construction area is being stabilized, a soft soil stabilizer is provided, and the soft soil stabilizer is added to the soft soil layer in the second construction area to stabilize the soft soil layer in the second construction area.

[0012] Further, after adding the soft soil stabilizer to the soft soil layer in the second construction area, the second construction area is stirred.

[0013] Further, the width of the first temporary road is determined according to the site construction.

[0014] Further, the width of the second temporary road is determined according to the site construction.

[0015] Further, after the replacement of the first construction area and the second construction area is completed, a highway is constructed on the top of the first construction area and the second construction area.

[0016] Further, the first temporary road is arranged corresponding to the construction position of the highway.

[0017] Further, the second temporary road is arranged corresponding to the construction position of the highway.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] After the local soft foundation replacement is completed, the temporary road of the flow state stabilized soil can be removed, and the temporary road is transferred to the area where the replacement is completed, so that the remaining soft foundation replacement is constructed, which greatly improves the efficiency of removing materials and replacement materials, and also enables other sub-projects to be constructed as a passageway during the soft foundation replacement, which can significantly reduce the construction cost and greatly shorten the construction period. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a construction effect diagram of a soft foundation replacement temporary road construction method based on flow state stabilized soil before construction.

[0021] Fig. 2 It is a construction effect diagram of a soft foundation replacement temporary road construction method based on flow state stabilized soil when the second construction area is replaced.

[0022] Fig. 3 It is a construction effect diagram of a soft foundation replacement temporary road construction method based on flow state stabilized soil when the first construction area is replaced.

[0023] Legend: 1, soft soil layer; 11, second construction area; 12, first construction area; 13, first temporary road; 14, second temporary road; 2, highway. DETAILED DESCRIPTION

[0024] The application will be further described below in connection with the drawings and specific embodiments.

[0025] Reference Figs. 1 to 3 A construction method of soft foundation replacement temporary road based on flow state solidified soil is set on soft soil layer 1, the soft soil layer 1 includes first construction area 12 and second construction area 11, and the method comprises the following steps: solidifying the soft soil layer 1 in the first construction area 12, after the soft soil in the first construction area 12 is solidified, a first construction section is formed by digging in the first construction area 12 corresponding to the construction position of the temporary road; the first temporary road 13 is constructed on the first construction section; the soft soil layer 1 in the second construction area 11 is solidified, after the soft soil in the second construction area 11 is solidified, the soft soil in the second construction area 11 is replaced, and the materials required for replacement are transported through the first temporary road 13; the second temporary road 14 is constructed on the top of the second construction area 11, and the first construction area 12 is replaced, and the materials required for replacement are transported through the second temporary road 14.

[0026] In the application, a preferred embodiment is that: in the process of constructing a road, when a large-area flow state solidified soil soft soil layer 1 is encountered, the soft soil layer 1 is first divided into two parts, preferably, in the application, the soft soil layer 1 is divided into the first construction area 12 and the second construction area 11 by taking the road to be constructed as a division line, the first construction area 12 is first solidified, and the first temporary road 13 is constructed on the first construction area 12, the first temporary road 13 can be used as a passageway for constructing other sub-projects during replacement of the second construction area 11, which can significantly reduce construction cost and greatly shorten construction period; the second construction area 11 is solidified, the soft soil layer 1 in the second construction area 11 is replaced, after the replacement is completed, the second temporary road 14 is constructed on the second construction area 11, the second temporary road 14 can be used as a passageway for constructing other sub-projects during replacement of the first construction area 12, which can significantly reduce construction cost and greatly shorten construction period; and the first construction area 12 is replaced.

[0027] Further, when the soft soil layer 1 in the first construction area 12 is solidified, a soft soil solidifying agent is provided, the soft soil solidifying agent is added to the soft soil layer 1 in the first construction area 12 to solidify the soft soil layer 1 in the first construction area 12.

[0028] Preferably, the soft soil stabilizer is an inorganic hydraulic cementing material for stabilizing soft soil and other fine-grained soil. After being fully mixed with the soil, the soft soil stabilizer can significantly improve the physical and mechanical properties of the soil through physical and chemical reactions between its components and the soil, and can form a stabilized body that meets environmental standards and remains stable for a long time. The stabilized body formed after the soft soil stabilizer is fully mixed with the soil and cured is called fluidized stabilized soil.

[0029] Further, the main components of the soft soil stabilizer are cement, lime, stone powder, silicate, etc. Cement is one of the most commonly used components in soft soil stabilizers. Cement can bond with fine particles contained in soft soil to form a solid structure, thereby playing a role in stabilizing soft soil. In addition to cement, the soft soil stabilizer also contains some auxiliary agents that can promote soft soil stabilization and stability, such as silicate, polymer, bentonite, etc.

[0030] Further, after adding the soft soil stabilizer to the soft soil layer 1 in the first construction area 12, the soft soil layer 1 is stirred in the first construction area 12. Preferably, the soft soil stabilizer and the soft soil layer 1 are fully mixed by stirring the soft soil layer 1 to ensure the effect of soft soil stabilization.

[0031] Further, the construction steps of soft soil replacement in the first construction area 12 include: removing debris and pollutants from the surface of the first construction area 12, ensuring the dryness and cleanliness of the ground in the first construction area 12, adding soft soil stabilizer to the soft soil layer 1 in the first construction area 12 to stabilize the soft soil in the first construction area 12; after the soft soil layer 1 in the second construction area 11 is stabilized and the replacement is completed, the first construction area 12 is replaced with soil, and is uniformly filled in layers according to the design requirements, and the replaced soil is compacted to ensure the tightness and stability of the replaced soil. The excavated materials and replacement materials are transferred through the second temporary road 14. After the construction is completed, the construction quality is detected, such as the uniformity of the replaced soil and the compaction degree, and timely adjustments are made.

[0032] Further, when stabilizing the soft soil layer 1 in the second construction area 11, a soft soil stabilizer is provided, and the soft soil stabilizer is added to the soft soil layer 1 in the second construction area 11 to stabilize the soft soil layer 1 in the second construction area 11.

[0033] Further, the main components of the soft soil stabilizer are cement, lime, stone powder, silicate, etc. Cement is one of the most commonly used components in soft soil stabilizers. Cement can bond with fine particles contained in soft soil to form a solid structure, thereby playing a role in stabilizing soft soil. In addition to cement, the soft soil stabilizer also contains some auxiliary agents that can promote soft soil stabilization and stability, such as silicate, polymer, bentonite, etc.

[0034] Further, after the soft soil solidifying agent is added to the soft soil layer 1 in the second construction area 11, the soft soil layer 1 is stirred in the second construction area 11. Preferably, the soft soil solidifying agent and the soft soil layer 1 are mixed by stirring the soft soil layer 1, so as to ensure the effect of solidifying the soft soil.

[0035] Further, the construction steps of the soft soil replacement of the second construction area 11 include: removing the sundries and pollutants on the surface of the second construction area 11, ensuring the dryness and cleanness of the ground of the second construction area 11, adding the soft soil solidifying agent to the soft soil layer 1 in the second construction area 11, so as to solidify the soft soil in the second construction area 11; performing the replacement construction of the second construction area 11, and performing the uniform filling in layers according to the design requirements, and tamping the replacement soil, so as to ensure the compactness and stability of the replacement soil, the excavated materials and the replacement materials are transferred through the first temporary road 13, after the construction is completed, the construction quality is detected, such as the uniformity of the replacement soil, the tamping degree, etc., and timely adjustment is performed.

[0036] Further, the width of the first temporary road 13 is determined according to the on-site construction. The width of the first temporary road 13 is adjusted to meet the traffic of the transport vehicles.

[0037] Further, the width of the second temporary road 14 is determined according to the on-site construction. The width of the second temporary road 14 is adjusted to meet the traffic of the transport vehicles.

[0038] Further, after the replacement of the first construction area 12 and the second construction area 11 is completed, the highway 2 is constructed on the top of the first construction area 12 and the second construction area 11.

[0039] Further, the first temporary road 13 is arranged corresponding to the construction position of the highway 2.

[0040] Further, the second temporary road 14 is arranged corresponding to the construction position of the highway 2.

[0041] The use process of the soft foundation replacement temporary road construction method based on the flow state solidified soil is described below.

[0042] In the process of constructing the road, when the soft soil layer 1 of large-area flow state solidified soil is encountered, the soft soil layer 1 is first divided into two parts, preferably, in the present application, the soft soil layer 1 is divided by the road to be constructed as the dividing line to form the first construction area 12 and the second construction area 11, the first construction area 12 is first solidified, and the first temporary road 13 is constructed on the first construction area 12, which can be used as a passageway for construction of other sub-projects during replacement of the second construction area 11, which can significantly reduce the construction cost and greatly shorten the construction period; the surface of the second construction area 11 is cleaned of sundries and pollutants, the ground of the second construction area 11 is ensured to be dry and clean, the soft soil solidifying agent is added to the soft soil layer 1 in the second construction area 11 to solidify the soft soil in the second construction area 11; the second construction area 11 is replaced and constructed, and is uniformly filled in layers according to the design requirements, and the replaced soil is tamped to ensure the tightness and stability of the replaced soil, the excavated materials and the replaced materials are transferred through the first temporary road 13, after the construction is completed, the construction quality such as the uniformity of the replaced soil and the tamping degree is detected, and timely adjustment is made, the second temporary road 14 is constructed in the second construction area 11 after the construction is completed, which can be used as a passageway for construction of other sub-projects during replacement of the first construction area 12, which can significantly reduce the construction cost and greatly shorten the construction period; after the soft soil layer 1 of the second construction area 11 is solidified and replaced, the first construction area 12 is replaced and constructed, and is uniformly filled in layers according to the design requirements, and the replaced soil is tamped to ensure the tightness and stability of the replaced soil, the excavated materials and the replaced materials are transferred through the second temporary road 14, after the construction is completed, the construction quality such as the uniformity of the replaced soil and the tamping degree is detected, and timely adjustment is made.

[0043] The above embodiments of the present application are described in detail in combination with the drawings, and those of ordinary skill in the art can make various changes to the present application according to the above description. Therefore, some details in the embodiments should not constitute a limitation on the present application, and the scope of protection of the present application will be defined by the appended claims.

Claims

1. A construction method for a temporary road for soft soil foundation replacement based on fluidized solidified soil, wherein the road is constructed on a soft soil layer, the soft soil layer comprising a first construction zone and a second construction zone, the soft soil layer being divided by the road to be constructed to form the first and second construction zones, characterized in that... Includes the following steps: The soft soil layer in the first construction area is solidified. After the soft soil in the first construction area is solidified, the first construction section is excavated at the construction location corresponding to the temporary road in the first construction area. A first temporary road will be constructed on the first construction section; The soft soil layer in the second construction area is solidified. After the soft soil in the second construction area is solidified, the soft soil in the second construction area is replaced and the materials required for replacement are transported through the first temporary road. A second temporary road is constructed on top of the second construction area, and the first construction area is replaced with fill material, which is then transported via the second temporary road. After the first construction area and the second construction area are replaced, a highway is constructed on top of the first construction area and the second construction area. The first temporary road is set up at the construction location of the highway; The second temporary road is set up at the construction location of the highway.

2. The construction method for a temporary road for soft soil foundation replacement based on fluidized solidified soil according to claim 1, characterized in that: in When solidifying the soft soil layer in the first construction area, a soft soil solidifying agent is provided and added to the soft soil layer in the first construction area to solidify the soft soil layer in the first construction area.

3. The construction method for a temporary road for soft soil foundation replacement based on fluidized solidified soil according to claim 2, characterized in that: After adding a soft soil stabilizer to the soft soil layer in the first construction area, the mixture is stirred within the first construction area.

4. A construction method for a temporary road for soft soil foundation replacement based on fluidized solidified soil according to claim 1, characterized in that: in When solidifying the soft soil layer in the second construction area, a soft soil solidifying agent is provided and added to the soft soil layer in the second construction area to solidify the soft soil layer in the second construction area.

5. A construction method for a temporary road for soft soil foundation replacement based on fluidized solidified soil according to claim 4, characterized in that: After adding a soft soil stabilizer to the soft soil layer in the second construction area, the mixture is stirred within the second construction area.

6. The construction method for a temporary road for soft soil foundation replacement based on fluidized solidified soil according to claim 1, characterized in that: The width of the first temporary road is determined based on the on-site construction.

7. A construction method for a temporary road for soft soil foundation replacement based on fluidized solidified soil according to claim 1, characterized in that: The width of the second temporary road will be determined based on the on-site construction conditions.

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