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Cement stabilized hill-skill soil for high-grade highway roadbed top strengthening layer

A cement-stabilized and mountain-soil technology, which is applied in the field of gravel soil and cement-stabilized mountain soil, can solve the problems of large unevenness of mountain soil, difficulty in controlling construction quality, and difficulty in taking soil, so as to improve construction quality, Improve the overall quality of the road, good overall effect

Inactive Publication Date: 2016-05-04
XUCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems that the traditional high-grade highway roadbed top surface reinforcement layer material is difficult to obtain soil, occupies cultivated land, and the unevenness of the hillside soil is relatively large, and the construction quality is difficult to control, so that it cannot be widely used in high-grade highways. The invention provides A kind of cement-stabilized mountain skin soil for the top surface reinforcement layer of high-grade road subgrade

Method used

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  • Cement stabilized hill-skill soil for high-grade highway roadbed top strengthening layer
  • Cement stabilized hill-skill soil for high-grade highway roadbed top strengthening layer
  • Cement stabilized hill-skill soil for high-grade highway roadbed top strengthening layer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The reinforcement layer of the Jiwang section of the Zhengxujie to Yuzhou North Ring Section Reconstruction Project of Henan Provincial Highway 103, a first-class highway, is obtained from the mountain skin. The soil contains about 30% of the mountain stone, and the content of 4% cement + 30% crushed stone is used. Mountain soil.

[0021] See Table 3 and Table 4 for the cement-stabilized hillside soil reinforcement layer mix ratio, results and drill core sampling test results applied in the Jiwang section.

[0022] Table 3 Cement-stabilized hillside soil reinforcement layer mix ratio and results

[0023]

[0024] Table 4 Drilling core sampling test results of the reinforcement layer

[0025] Test items

Embodiment 2

[0027] The reinforcement layer of the beamless section of Zhengxujie to Yuzhou North Ring Section Reconstruction Project of Provincial Highway 103 in Henan Province is obtained from mountain skin. The soil contains about 50% of mountain stone, and the content of 4% cement + 50% crushed stone is used. Mountain soil.

[0028] See Table 5 and Table 6 for the cement-stabilized hillside soil reinforcement layer mix ratio, results and drill core sampling test results applied in the beamless section.

[0029] Table 5 Mixing ratio and results of cement-stabilized hillside soil reinforcement layer

[0030]

[0031]

[0032] Table 6 Drilling core sampling test results of the reinforcement layer

[0033] Test items

Embodiment 3

[0035] The reinforcement layer of the Gucheng Section of the Zhengxujie to Yuzhou North Ring Section Reconstruction Project of Provincial Highway 103 in Henan Province is obtained from the mountain skin. The soil contains about 70% of the mountain stone, and the content of the mountain stone is 4% cement + 70% leather soil.

[0036] See Table 7 and Table 8 for the cement-stabilized hillside soil reinforcement layer mix ratio, results and drill core sampling test results applied in the Gucheng section.

[0037] Table 7 Mix ratio and results of cement-stabilized mountain soil reinforcement layer

[0038]

[0039] Table 8 Drilling core sampling test results of the reinforcement layer

[0040] Test items

[0041] compactness(%)

[0042] The construction process shows that the treated mountain soil is easy to form a board, with high strength and strong deformation resistance. The indoor standard maximum dry density measured by this method meets the require...

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Abstract

The invention discloses a cement stabilized hill-skill soil structure for a high-grade highway roadbed top strengthening layer. Mix proportion design of cement stabilized hill-skill soil test is carried out according to national standards, and the cement stabilized hill-skill soil is composed of cement and hill-skill soil. The cement stabilized hill-skill soil is characterized in that: the content of cement is 4%, the content of hill-skill soil and stone in the hill-skill soil is 28.8%-67.2%, the soil content is 67.2%-28.8%, and the particle size of the hill-skill soil is 30mm-100mm. The invention selects a new material for the high-grade highway roadbed top strengthening layer, solves the influence of particle size nonuniformity on construction quality in hill-skill soil utilization, reduces the destruction of highway engineering materials to cultivated land, effectively reduces water and soil erosion on the mountain surface, also has good use effect and good pavement durability.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of solid waste, and relates to weathered gravel soil on the surface of a mountain, in particular to cement-stabilized mountain soil used for a reinforcing layer on the top surface of a roadbed of a high-grade road. Background technique [0002] The reinforcement layer on the top surface of the subgrade is the main structural layer to restore or improve the surface performance and bearing capacity of the old road. Its quality directly affects the road performance and service life after the road is rebuilt and opened to traffic. There are high technical requirements for the cement stabilized material of the reinforcement layer on the top surface of the subgrade. [0003] Cement (lime) stabilized fine-grained soil is mostly used in the reinforcement layer on the top surface of traditional high-grade highway subgrade. This material is prepared with soil as aggregate and cement (lime)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04C09K17/10
CPCE01C3/04C09K17/10
Inventor 白璐侯雪宾王子正周小范万群伟
Owner XUCHANG UNIV
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