行業(yè)資訊
水泥撒布車對于路基施工的流程介紹
來源：http://www.baoxiaomei.cn/ 日期：2023-09-11
低填淺挖
Low filling and shallow excavation
道路沿線地勢高低起伏，對于填方高度小于1.5m的低填路段及挖方高度小于0.8m的淺挖路段，設(shè)計時考慮從原地面挖至路床底（即路槽一下0.8m范圍內(nèi)換填4%生石灰土后再施工路面結(jié)構(gòu)部分。
The terrain along the road is undulating. For low fill sections with a filling height of less than 1.5m and shallow excavation sections with a excavation height of less than 0.8m, the design considers excavating from the original ground to the bottom of the roadbed (i.e. replacing with 4% quicklime soil within 0.8m below the road trough) before constructing the pavement structure.
厚旺租賃
Houwang Leasing
素填土
Plain fill soil
根據(jù)本段地基勘察報告，沿線局部路段有0.4~3.5m深的素填土，由于素填土結(jié)構(gòu)疏散，堆積年限短，設(shè)計考慮當(dāng)素填土厚度≤0.8m時，清除素填土，回填合格的路基填料；當(dāng)0.8m<厚<3.5m，清除耕植土后，翻挖原裝素填土，摻6%生石灰回填壓實。
According to the foundation survey report of this section, there are partial sections along the line with 0.4-3.5m deep plain fill soil. Due to the evacuation of the plain fill soil structure and the short accumulation period, the design considers removing the plain fill soil and backfilling qualified roadbed fill when the thickness of the plain fill soil is ≤ 0.8m; When 0.8m
水塘
Pond
路基處于水塘路段時，當(dāng)路基占用水塘面積較大，路基范圍外水塘面積較小時，水塘宜廢棄，按干塘處理，先將整個水塘抽水放干，請?zhí)幚砑胺秶鷥?nèi)淤泥，然后換填0.6~1.0m的厚毛渣石，再換填素土至路床頂；路基范圍外側(cè)用素土整平至塘埂。
When the roadbed is in a pond section, when the roadbed occupies a large pond area and the pond area outside the roadbed area is small, the pond should be abandoned and treated as a dry pond. First, the entire pond should be pumped and drained, and the sludge within the range should be treated. Then, 0.6~1.0m thick coarse gravel should be replaced, and then plain soil should be replaced to the top of the roadbed; Level the outer side of the roadbed with plain soil to the embankment.
當(dāng)路基占用水塘面積較小，水塘仍有保留價值時，在坡腳外側(cè)抽水，路基內(nèi)側(cè)清淤并分層回填毛渣石至塘埂;常水位+0.5米以下邊坡采用漿砌片石防護(hù)，工后拆除編織袋圍堰。
When the roadbed occupies a small area of the pond and the pond still has retained value, water should be pumped from the outer side of the slope toe, and the inner side of the roadbed should be dredged and backfilled with coarse debris in layers to the pond ridge; The slope below the constant water level of+0.5 meters is protected with mortar rubble, and the woven bag cofferdam is removed after construction.
因水塘塘埂處高差較大坡度較陡，為避免不均勻沉降，將塘埂挖臺階處理，臺階寬度不宜小于2m，設(shè)4%向內(nèi)橫坡，分層鋪設(shè)雙向土工格柵，最后在塘埂頂鋪設(shè)一層雙向土埂格柵。
Due to the large height difference and steep slope at the embankment of the pond, in order to avoid uneven settlement, steps were excavated to treat the embankment. The width of the steps should not be less than 2 meters, and a 4% inward transverse slope was set. A two-way geogrid was laid in layers, and finally a layer of two-way geogrid was laid at the top of the embankment.
路基橫斷面勘察設(shè)計應(yīng)注意：
The cross section survey and design of the roadbed should pay attention to:
一上下行分臺高(h)不宜太高也不宜太低，h=5~6米為宜；
The height of the up and down sub stations (h) should not be too high or too low, and h=5-6 meters is appropriate;
二中分帶宜采用輕型支擋結(jié)構(gòu)，且忌重力式結(jié)構(gòu)，坡比n=0.25~0.5為宜；
The second split belt should adopt a lightweight support structure and avoid a gravity type structure, with a slope ratio of n=0.25~0.5 as appropriate;
三加強上下臺間的排水，特別是向下臺線傾斜的超高路段；
Thirdly, strengthen the drainage between the upper and lower platforms, especially for the super high road sections that tilt towards the lower platform line;
四加強上臺線中分帶安全措施，特別是上臺為下坡，中分帶為曲線外幅路段；
Fourth, strengthen the safety measures for the middle section of the upper platform line, especially when the upper platform is a downhill section and the middle section is a section outside the curve;
五分臺式路基長度每2~4km一合為宜，有利于上下行線的聯(lián)系；
The length of the five point table roadbed should be combined every 2-4km, which is conducive to the connection between the up and down lines;
六填方路段適當(dāng)加寬中分帶寬度，以減少支檔工程，有利于路基的安個和穩(wěn)定。
The width of the median strip should be appropriately widened in the six fill section to reduce support engineering and facilitate the safety and stability of the roadbed.
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公司名稱：山東途暢路橋工程有限公司 
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