畢業(yè)論文-市政道路工程施工的質(zhì)量問題及防治措施(編輯修改稿)
2025-07-12 11:38 本頁面
【文章內(nèi)容簡介】 0 分鐘時(shí)，則應(yīng)設(shè)置垂直于路中線的平接施工縫。 ②、施工縫的位置盡可能與脹縫或縮縫相吻合，設(shè)在脹縫處按脹縫形式施工。 ③、按設(shè)計(jì)要求設(shè)傳力桿或拉桿，傳力桿或拉桿必須與路中心線平行并垂直縫壁。 ④、采用平縫加傳力桿形式時(shí)。傳力桿長度的一半錨固于混凝土中，另一半涂油脂或潤滑劑，允許活動(dòng)；采用平縫加拉桿形式時(shí)，兩端錨固。 ⑤、鋪筑鄰板時(shí)，對已澆注混凝土面板的縫壁應(yīng)涂瀝青，但不得污染拉桿或傳力桿。 拆模、養(yǎng)生和封縫： (1)拆模： ①、在混 凝土強(qiáng)度達(dá)到設(shè)計(jì)強(qiáng)度的有關(guān)規(guī)范要求時(shí)進(jìn)行拆模，并取得監(jiān)理工程師同意。 ②、拆模后，任何蜂窩、麻面及板邊的損壞應(yīng)予整修，并及時(shí)將橫向脹縫沿混凝土面板邊緣通開至全部深度。 (2)養(yǎng)生： 水泥砼路面割縫完成后即可進(jìn)行保溫養(yǎng)護(hù)，采用土工布浸濕后覆蓋澆水養(yǎng)護(hù)，每天灑水次數(shù)根據(jù)氣候而定，水泥砼面層一般養(yǎng)護(hù)期為 14～ 21 天，氣溫低時(shí)適當(dāng)延長。養(yǎng)護(hù)期間禁止車輛運(yùn)行，在達(dá)到設(shè)計(jì)強(qiáng)度后方可開放交通。 (3)封縫： ①、混凝土面板中所有接縫縫槽均按設(shè)計(jì)圖紙的要求和部位用填縫料封縫。 ②、接縫縫槽要求干燥、無塵土、無混凝土碎屑或其 他雜物。 ③、填縫料要按照生產(chǎn)廠推薦的方法加熱和灌縫；填縫料與混凝土縫壁粘附緊密不滲水。 ④、填縫料應(yīng)由槽底部灌填至路表面，深度大于 的縫槽最少分二層填縫，每層厚度大致相等。 ⑤、灌縫作業(yè)在高溫季節(jié)使填縫料灌至路表面齊平，在低溫季節(jié)則稍低于路表面。 ⑥、填縫隨工程的進(jìn)度，使在開放交通前，填縫料要有充分時(shí)間的硬結(jié)。 質(zhì)量控制： ①、施工過程中混凝土混合料按規(guī)范要求檢驗(yàn)混凝土的抗壓與彎拉強(qiáng)度，以及混合料中各種組成材料用量的允許偏差。并按規(guī)范中有關(guān)規(guī)定，評定混凝土合格強(qiáng)度。 ②、外觀上路面?zhèn)仁表槨?曲線圓滑，接縫填筑飽滿密實(shí)。 g an employment tribunal claim Employment tribunals sort out disagreements between employers and employees. You may need to make a claim to an employment tribunal if: ? you don39。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。t charge you more than 35% of your pensation if you win the case. If you are thinking about signing up for a damagesbased agreement, you should make sure you39。re clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau. To find your nearest CAB, including those that give advice by , click on nearest CAB. For more information about making a claim to an employment tribunal, see Employment tribunals. The (lac
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