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廊涿高速改扩建工程北半幅主体工程基本完工_我的网站

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A |     日报讯（曹智、梁钰琪）近日，G95首都地区环线高速公路廊坊至涿州段（以下简称“廊涿高速”）改扩建工程施工现场一派繁忙景象，北半幅主体工程已基本完工，建设者抢抓当前施工黄金时段，锚定8月底北半幅具备通车条件的目标，加快推进各项收尾施工工作。

B |     

Yuzhu-1 Henan indigenous pig 15k breeding array Photo: Courtesy of Institute of Animal Husbandry and Veterinary Science of Henan Academy of Agricultural Sciences
    Yuzhu-1 Henan indigenous pig 15k breeding array Photo: Courtesy of Institute of Animal Husbandry and Veterinary Science of Henan Academy of Agricultural Sciences
China's largest pork-producing province has introduced a genomic breeding tool designed for indigenous pig breeding, a sign that the province is shifting from expanding volume toward improving hog quality.
The Henan Academy of Agricultural Sciences announced the launch of Yuzhu-1 Henan indigenous pig 15k breeding array - commonly known as a gene chip - developed by the pig breeding team at its Institute of Animal Husbandry and Veterinary Science. It is the first such tool customized for the province's native pig stock, the institute said on Monday.
Henan is home to multiple native pig breeds prized by consumers for their good flavor. However, they carry a commercial burden compared with imported lean-meat breeds, as they grow more slowly, consume more feed per kilogram of weight gain and deliver thinner margins, noted Xing Baosong, head of the pig research office at the institute.
Lifting those hurdles depends on sharper selection, which in local herds has long relied on visual assessment of physical traits, which is slow and imprecise. Genomic tools can speed things up, but mainstream commercial chips were built on imported breeds and lose accuracy on native Chinese stock. Yuzhu No 1 instead draws on whole-genome resequencing data from five of Henan's native pig breeds and two locally bred lines.
"In breeding we rely on estimated breeding values to judge an animal's genetic potential," Wang Ligang, a professor at the Institute of Animal Sciences under the Chinese Academy of Agricultural Sciences, told the Global Times on Monday. "An array matched to the breed makes that estimate more accurate. Previously there was a real chance we were selecting the wrong animals. Now we are far more likely to be selecting the right ones - and to select accurately for the traits a breed is known for, whether that is tender meat or high fertility."
The efficiency gap between native and imported pig breeds remains wide, said Wang, who is also with the Pig Branch of the Chinese Association of Animal Science and Veterinary Medicine. Feed conversion ratios for local Chinese pigs run around 3.0, against below 2.5 for imported breeds, while reaching 100 kilograms takes native pigs 180 to 190 days compared with 130 to 140 days for exotic lines, he said. 
Despite this, China's native pig breeds have their advantages.
"Our pigs taste better, partly because they are raised longer," Wang said. "And they are far more robust. Exotic breeds can suffer heat stress and die in summer; when disease hits, they can go down in large numbers. Local pigs rarely do. They tend to recover. Some breeds in Northeast China can even tolerate severe cold."
He added that imported breeds drive efficiency, while native breeds ensure quality and offer a reservoir of genetic diversity for disease and stress resistance - traits that can be bred back into commercial lines.
The province slaughtered 64.74 million pigs in 2025, up 7.4 percent year on year, with pork output at 5.22 million tons, according to the provincial statistics bureau, making it the top pork and pig producer nationwide, according to industry statistics. 
In the first half of 2026, pig slaughter in the province rose a further 6.4 percent, accelerating 5.3 percentage points from the first quarter, against national growth of 1.7 percent. Xing said that more high-quality local black pigs will reach the market as Yuzhu No 1 is applied more broadly. 
Other major pig production provinces such as Southwest China's Sichuan, Northwest China's Shaanxi and South China's Yunnan have all developed their own arrays.
"Provinces with the most developed pig production are the ones pushing upmarket," Wang said. "Scale is no longer the only measure. If every province reaches this level, a pattern of one dedicated array per province could gradually take shape for China's native breeds."
。在廊涿高速改扩建项目一分部施工现场，工程收尾工作坚持精细化施工标准，施工人员有序推进伸缩缝安装、声屏障布设、路面防排水系统优化完善等关键工序，各环节施工压茬衔接、高效推进。“8月15日，廊涿高速改扩建工程北半幅主体工程已基本完工。现阶段我们的工作重点全面转向细节打磨提升，各施工班组定岗定责、多点并行作业。项目严格规范施工流程、严控工程质量、严守安全生产底线，将施工节点细化至每日进度，把攻坚责任压实到各个岗位、每名人员，确保每一道施工工序高标准落地，全力筑牢工程品质根基。

C | ”廊涿改扩建项目一分部项目经理张立强介绍。交通安全设施是高速公路安全通车、平稳运行的重要基础保障。在项目四分部施工区域，护栏安装、交通标志标牌布设、路面标线施划工作同步开展，防眩设施、轮廓标、隔离防护设施安装等配套工程也全面铺开，多个作业面同步施工、协同推进。“各类交安设施主要承担道路防护隔离、车流通行引导、路况安全警示等重要功能。

D | 我们充分抢抓晴好有利天气，组织多班组交叉作业，争分夺秒抢抓工期，全速推进交安配套工程建设。”廊涿改扩建项目四分部项目经理夏明辉表示。廊涿高速改扩建工程，是省综合交通运输体系规划“六纵六横一环”的重要组成部分，也是完善国家高速路网、服务京津冀协同发展、保障雄安新区对外交通联络的重点工程。

E | 项目全长46.092公里，途经廊坊固安、保定涿州，采用两侧加宽为主、单侧加宽为辅的建设方案，将原有双向四车道拓宽改造为双向八车道，建成后能够有效破解区域交通瓶颈，疏解过境车流压力，进一步优化京津冀路网格局。项目施工全程采取半幅施工、半幅保通的不断交施工模式。自开工以来，各参建单位直面汛期降雨、工期紧张等考验，科学编制交通组织方案，统筹调配人员设备，在保障既有道路正常通行的前提下，高标准推进工程建设，实现施工、通行两不误。北半幅投用后，G95首都地区环线高速这一关键通道的通行能力、行车舒适度将得到显著提升，通道资源优势将进一步释放，为京津冀要素流通、产业联动提供更强有力支撑。北半幅具备通车条件后，高速集团将接续开展南半幅改扩建施工，廊涿高速改扩建工程全线预计2027年底建成通车。

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Published on:11:19:33